./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.03.cil-2.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.03.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4c3aab1156afcb98b97b027e9b66004d54025f3b89e95d6d35dc2e84fdb640d2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 04:04:43,804 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 04:04:43,892 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 04:04:43,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 04:04:43,899 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 04:04:43,923 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 04:04:43,923 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 04:04:43,924 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 04:04:43,924 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 04:04:43,924 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 04:04:43,924 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 04:04:43,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 04:04:43,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 04:04:43,925 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 04:04:43,925 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 04:04:43,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 04:04:43,926 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 04:04:43,926 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 04:04:43,926 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 04:04:43,926 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 04:04:43,927 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 04:04:43,927 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 04:04:43,927 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 04:04:43,927 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 04:04:43,927 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 04:04:43,928 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 04:04:43,928 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 04:04:43,928 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 04:04:43,928 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 04:04:43,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 04:04:43,928 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 04:04:43,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 04:04:43,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:04:43,929 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 04:04:43,929 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 04:04:43,929 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 04:04:43,930 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 04:04:43,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 04:04:43,930 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 04:04:43,930 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 04:04:43,930 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 04:04:43,930 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 04:04:43,931 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c3aab1156afcb98b97b027e9b66004d54025f3b89e95d6d35dc2e84fdb640d2 [2024-11-22 04:04:44,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 04:04:44,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 04:04:44,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 04:04:44,166 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 04:04:44,167 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 04:04:44,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.03.cil-2.c [2024-11-22 04:04:45,413 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 04:04:45,586 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 04:04:45,587 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-1+token_ring.03.cil-2.c [2024-11-22 04:04:45,599 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86c8f9d33/d2ab879fda3541a888a272b593ac398a/FLAGd9fa8d0ac [2024-11-22 04:04:45,614 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86c8f9d33/d2ab879fda3541a888a272b593ac398a [2024-11-22 04:04:45,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 04:04:45,618 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 04:04:45,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 04:04:45,620 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 04:04:45,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 04:04:45,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:04:45" (1/1) ... [2024-11-22 04:04:45,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3679ef37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:45, skipping insertion in model container [2024-11-22 04:04:45,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:04:45" (1/1) ... [2024-11-22 04:04:45,671 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 04:04:45,834 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.03.cil-2.c[914,927] [2024-11-22 04:04:45,897 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.03.cil-2.c[7115,7128] [2024-11-22 04:04:45,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:04:45,966 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 04:04:45,979 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.03.cil-2.c[914,927] [2024-11-22 04:04:45,996 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.03.cil-2.c[7115,7128] [2024-11-22 04:04:46,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 04:04:46,039 INFO L204 MainTranslator]: Completed translation [2024-11-22 04:04:46,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:46 WrapperNode [2024-11-22 04:04:46,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 04:04:46,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 04:04:46,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 04:04:46,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 04:04:46,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:46" (1/1) ... [2024-11-22 04:04:46,059 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:46" (1/1) ... [2024-11-22 04:04:46,090 INFO L138 Inliner]: procedures = 59, calls = 66, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 528 [2024-11-22 04:04:46,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 04:04:46,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 04:04:46,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 04:04:46,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 04:04:46,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:46" (1/1) ... [2024-11-22 04:04:46,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:46" (1/1) ... [2024-11-22 04:04:46,104 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:46" (1/1) ... [2024-11-22 04:04:46,124 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 04:04:46,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:46" (1/1) ... [2024-11-22 04:04:46,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:46" (1/1) ... [2024-11-22 04:04:46,136 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:46" (1/1) ... [2024-11-22 04:04:46,143 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:46" (1/1) ... [2024-11-22 04:04:46,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:46" (1/1) ... [2024-11-22 04:04:46,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:46" (1/1) ... [2024-11-22 04:04:46,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 04:04:46,152 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 04:04:46,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 04:04:46,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 04:04:46,153 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:46" (1/1) ... [2024-11-22 04:04:46,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 04:04:46,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:04:46,195 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 04:04:46,201 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 04:04:46,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 04:04:46,238 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-22 04:04:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-22 04:04:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-22 04:04:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-22 04:04:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-22 04:04:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-22 04:04:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-22 04:04:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-22 04:04:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-22 04:04:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-22 04:04:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-22 04:04:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-22 04:04:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-22 04:04:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-22 04:04:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-22 04:04:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-22 04:04:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-22 04:04:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-22 04:04:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-22 04:04:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-22 04:04:46,241 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-22 04:04:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-22 04:04:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 04:04:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-22 04:04:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-22 04:04:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-22 04:04:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-22 04:04:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 04:04:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 04:04:46,242 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-22 04:04:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-22 04:04:46,354 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 04:04:46,357 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 04:04:46,779 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-11-22 04:04:46,779 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 04:04:46,795 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 04:04:46,796 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-22 04:04:46,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:04:46 BoogieIcfgContainer [2024-11-22 04:04:46,796 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 04:04:46,798 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 04:04:46,798 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 04:04:46,801 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 04:04:46,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:04:45" (1/3) ... [2024-11-22 04:04:46,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4391c5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:04:46, skipping insertion in model container [2024-11-22 04:04:46,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:46" (2/3) ... [2024-11-22 04:04:46,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4391c5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:04:46, skipping insertion in model container [2024-11-22 04:04:46,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:04:46" (3/3) ... [2024-11-22 04:04:46,803 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.03.cil-2.c [2024-11-22 04:04:46,818 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 04:04:46,818 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 04:04:46,892 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 04:04:46,898 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;@1bcd75d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 04:04:46,900 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-22 04:04:46,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 262 states, 214 states have (on average 1.560747663551402) internal successors, (334), 220 states have internal predecessors, (334), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-22 04:04:46,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:46,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:46,918 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 04:04:46,919 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:46,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:46,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1308412367, now seen corresponding path program 1 times [2024-11-22 04:04:46,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:46,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761251120] [2024-11-22 04:04:46,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:46,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:47,327 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 04:04:47,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:47,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761251120] [2024-11-22 04:04:47,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761251120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:47,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:47,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:04:47,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319424826] [2024-11-22 04:04:47,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:47,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:04:47,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:47,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:04:47,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:04:47,363 INFO L87 Difference]: Start difference. First operand has 262 states, 214 states have (on average 1.560747663551402) internal successors, (334), 220 states have internal predecessors, (334), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) 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 04:04:47,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:47,890 INFO L93 Difference]: Finished difference Result 608 states and 922 transitions. [2024-11-22 04:04:47,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:04:47,893 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 04:04:47,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:47,905 INFO L225 Difference]: With dead ends: 608 [2024-11-22 04:04:47,905 INFO L226 Difference]: Without dead ends: 355 [2024-11-22 04:04:47,913 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 04:04:47,916 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 300 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:47,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 841 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:04:47,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-22 04:04:47,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 348. [2024-11-22 04:04:47,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 282 states have (on average 1.4432624113475176) internal successors, (407), 288 states have internal predecessors, (407), 42 states have call successors, (42), 21 states have call predecessors, (42), 22 states have return successors, (45), 41 states have call predecessors, (45), 40 states have call successors, (45) [2024-11-22 04:04:47,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 494 transitions. [2024-11-22 04:04:47,975 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 494 transitions. Word has length 65 [2024-11-22 04:04:47,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:47,975 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 494 transitions. [2024-11-22 04:04:47,975 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 04:04:47,975 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 494 transitions. [2024-11-22 04:04:47,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:47,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:47,980 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:47,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 04:04:47,980 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:47,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:47,981 INFO L85 PathProgramCache]: Analyzing trace with hash -904626416, now seen corresponding path program 1 times [2024-11-22 04:04:47,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:47,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475553166] [2024-11-22 04:04:47,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:47,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:48,127 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 04:04:48,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:48,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475553166] [2024-11-22 04:04:48,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475553166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:48,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:48,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:48,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240104047] [2024-11-22 04:04:48,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:48,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:48,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:48,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:48,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:48,130 INFO L87 Difference]: Start difference. First operand 348 states and 494 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:48,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:48,623 INFO L93 Difference]: Finished difference Result 665 states and 925 transitions. [2024-11-22 04:04:48,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:04:48,624 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 04:04:48,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:48,629 INFO L225 Difference]: With dead ends: 665 [2024-11-22 04:04:48,632 INFO L226 Difference]: Without dead ends: 488 [2024-11-22 04:04:48,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-22 04:04:48,635 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 529 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:48,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 1051 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:04:48,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-22 04:04:48,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 444. [2024-11-22 04:04:48,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 358 states have (on average 1.4273743016759777) internal successors, (511), 366 states have internal predecessors, (511), 53 states have call successors, (53), 28 states have call predecessors, (53), 31 states have return successors, (64), 53 states have call predecessors, (64), 51 states have call successors, (64) [2024-11-22 04:04:48,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 628 transitions. [2024-11-22 04:04:48,691 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 628 transitions. Word has length 65 [2024-11-22 04:04:48,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:48,692 INFO L471 AbstractCegarLoop]: Abstraction has 444 states and 628 transitions. [2024-11-22 04:04:48,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:48,692 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 628 transitions. [2024-11-22 04:04:48,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:48,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:48,697 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 04:04:48,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 04:04:48,698 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:48,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:48,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1361754770, now seen corresponding path program 1 times [2024-11-22 04:04:48,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:48,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689783872] [2024-11-22 04:04:48,702 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 04:04:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:48,776 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 04:04:48,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:48,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689783872] [2024-11-22 04:04:48,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689783872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:48,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:48,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:48,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014867569] [2024-11-22 04:04:48,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:48,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:48,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:48,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:48,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:48,790 INFO L87 Difference]: Start difference. First operand 444 states and 628 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 04:04:48,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:48,836 INFO L93 Difference]: Finished difference Result 716 states and 1001 transitions. [2024-11-22 04:04:48,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:04:48,836 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 04:04:48,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:48,839 INFO L225 Difference]: With dead ends: 716 [2024-11-22 04:04:48,839 INFO L226 Difference]: Without dead ends: 449 [2024-11-22 04:04:48,840 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 04:04:48,841 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 0 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1790 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 04:04:48,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1790 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:04:48,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-22 04:04:48,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2024-11-22 04:04:48,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 362 states have (on average 1.4171270718232045) internal successors, (513), 370 states have internal predecessors, (513), 53 states have call successors, (53), 28 states have call predecessors, (53), 32 states have return successors, (65), 54 states have call predecessors, (65), 51 states have call successors, (65) [2024-11-22 04:04:48,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 631 transitions. [2024-11-22 04:04:48,868 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 631 transitions. Word has length 65 [2024-11-22 04:04:48,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:48,868 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 631 transitions. [2024-11-22 04:04:48,869 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 04:04:48,869 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 631 transitions. [2024-11-22 04:04:48,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:48,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:48,871 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 04:04:48,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 04:04:48,871 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:48,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:48,872 INFO L85 PathProgramCache]: Analyzing trace with hash 332395472, now seen corresponding path program 1 times [2024-11-22 04:04:48,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:48,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673702127] [2024-11-22 04:04:48,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:48,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:48,944 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 04:04:48,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:48,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673702127] [2024-11-22 04:04:48,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673702127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:48,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:48,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:48,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181957680] [2024-11-22 04:04:48,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:48,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:48,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:48,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:48,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:48,946 INFO L87 Difference]: Start difference. First operand 449 states and 631 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 04:04:48,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:48,987 INFO L93 Difference]: Finished difference Result 736 states and 1019 transitions. [2024-11-22 04:04:48,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:04:48,988 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 04:04:48,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:48,991 INFO L225 Difference]: With dead ends: 736 [2024-11-22 04:04:48,993 INFO L226 Difference]: Without dead ends: 464 [2024-11-22 04:04:48,995 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 04:04:48,996 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 0 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1790 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 04:04:48,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1790 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:04:48,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-22 04:04:49,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2024-11-22 04:04:49,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 374 states have (on average 1.4037433155080214) internal successors, (525), 382 states have internal predecessors, (525), 53 states have call successors, (53), 28 states have call predecessors, (53), 35 states have return successors, (68), 57 states have call predecessors, (68), 51 states have call successors, (68) [2024-11-22 04:04:49,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 646 transitions. [2024-11-22 04:04:49,017 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 646 transitions. Word has length 65 [2024-11-22 04:04:49,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:49,017 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 646 transitions. [2024-11-22 04:04:49,017 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 04:04:49,017 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 646 transitions. [2024-11-22 04:04:49,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:49,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:49,019 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 04:04:49,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 04:04:49,019 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:49,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:49,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1718598866, now seen corresponding path program 1 times [2024-11-22 04:04:49,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:49,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892803630] [2024-11-22 04:04:49,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:49,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:49,133 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 04:04:49,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:49,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892803630] [2024-11-22 04:04:49,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892803630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:49,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:49,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:49,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104492862] [2024-11-22 04:04:49,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:49,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:49,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:49,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:49,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:49,136 INFO L87 Difference]: Start difference. First operand 464 states and 646 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:49,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:49,640 INFO L93 Difference]: Finished difference Result 835 states and 1127 transitions. [2024-11-22 04:04:49,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 04:04:49,640 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-22 04:04:49,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:49,643 INFO L225 Difference]: With dead ends: 835 [2024-11-22 04:04:49,643 INFO L226 Difference]: Without dead ends: 550 [2024-11-22 04:04:49,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 04:04:49,646 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 526 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:49,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 883 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:04:49,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-22 04:04:49,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 476. [2024-11-22 04:04:49,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 384 states have (on average 1.3932291666666667) internal successors, (535), 392 states have internal predecessors, (535), 54 states have call successors, (54), 29 states have call predecessors, (54), 36 states have return successors, (67), 58 states have call predecessors, (67), 52 states have call successors, (67) [2024-11-22 04:04:49,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 656 transitions. [2024-11-22 04:04:49,670 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 656 transitions. Word has length 65 [2024-11-22 04:04:49,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:49,670 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 656 transitions. [2024-11-22 04:04:49,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:04:49,671 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 656 transitions. [2024-11-22 04:04:49,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 04:04:49,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:49,672 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 04:04:49,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 04:04:49,672 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:49,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:49,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1584585360, now seen corresponding path program 1 times [2024-11-22 04:04:49,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:49,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482624960] [2024-11-22 04:04:49,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:49,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:49,716 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 04:04:49,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:49,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482624960] [2024-11-22 04:04:49,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482624960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:49,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:49,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:04:49,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041348995] [2024-11-22 04:04:49,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:49,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:04:49,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:49,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:04:49,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:04:49,718 INFO L87 Difference]: Start difference. First operand 476 states and 656 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 04:04:49,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:49,992 INFO L93 Difference]: Finished difference Result 1066 states and 1432 transitions. [2024-11-22 04:04:49,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:04:49,992 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 04:04:49,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:49,996 INFO L225 Difference]: With dead ends: 1066 [2024-11-22 04:04:49,996 INFO L226 Difference]: Without dead ends: 770 [2024-11-22 04:04:49,997 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 04:04:49,998 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 485 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:49,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 435 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:04:49,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2024-11-22 04:04:50,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 766. [2024-11-22 04:04:50,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 608 states have (on average 1.3519736842105263) internal successors, (822), 623 states have internal predecessors, (822), 89 states have call successors, (89), 51 states have call predecessors, (89), 67 states have return successors, (124), 98 states have call predecessors, (124), 87 states have call successors, (124) [2024-11-22 04:04:50,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1035 transitions. [2024-11-22 04:04:50,059 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1035 transitions. Word has length 65 [2024-11-22 04:04:50,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:50,060 INFO L471 AbstractCegarLoop]: Abstraction has 766 states and 1035 transitions. [2024-11-22 04:04:50,060 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 04:04:50,060 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1035 transitions. [2024-11-22 04:04:50,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 04:04:50,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:50,062 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 04:04:50,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 04:04:50,062 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:50,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:50,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1734272765, now seen corresponding path program 1 times [2024-11-22 04:04:50,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:50,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066467131] [2024-11-22 04:04:50,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:50,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:50,089 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 04:04:50,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:50,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066467131] [2024-11-22 04:04:50,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066467131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:50,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:50,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:04:50,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195577147] [2024-11-22 04:04:50,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:50,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:04:50,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:50,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:04:50,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:04:50,090 INFO L87 Difference]: Start difference. First operand 766 states and 1035 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 04:04:50,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:50,165 INFO L93 Difference]: Finished difference Result 1877 states and 2494 transitions. [2024-11-22 04:04:50,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:04:50,165 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 04:04:50,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:50,172 INFO L225 Difference]: With dead ends: 1877 [2024-11-22 04:04:50,172 INFO L226 Difference]: Without dead ends: 1270 [2024-11-22 04:04:50,174 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 04:04:50,175 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 103 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:50,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 685 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:04:50,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2024-11-22 04:04:50,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1247. [2024-11-22 04:04:50,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 987 states have (on average 1.32016210739615) internal successors, (1303), 1005 states have internal predecessors, (1303), 134 states have call successors, (134), 95 states have call predecessors, (134), 124 states have return successors, (196), 153 states have call predecessors, (196), 132 states have call successors, (196) [2024-11-22 04:04:50,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1633 transitions. [2024-11-22 04:04:50,236 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1633 transitions. Word has length 66 [2024-11-22 04:04:50,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:50,236 INFO L471 AbstractCegarLoop]: Abstraction has 1247 states and 1633 transitions. [2024-11-22 04:04:50,236 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 04:04:50,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1633 transitions. [2024-11-22 04:04:50,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 04:04:50,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:50,238 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 04:04:50,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 04:04:50,238 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:50,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:50,238 INFO L85 PathProgramCache]: Analyzing trace with hash -276033106, now seen corresponding path program 1 times [2024-11-22 04:04:50,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:50,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123888091] [2024-11-22 04:04:50,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:50,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:50,261 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 04:04:50,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:50,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123888091] [2024-11-22 04:04:50,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123888091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:50,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:50,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:04:50,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944659417] [2024-11-22 04:04:50,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:50,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:04:50,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:50,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:04:50,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:04:50,262 INFO L87 Difference]: Start difference. First operand 1247 states and 1633 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 04:04:50,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:50,379 INFO L93 Difference]: Finished difference Result 3275 states and 4250 transitions. [2024-11-22 04:04:50,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:04:50,380 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 04:04:50,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:50,389 INFO L225 Difference]: With dead ends: 3275 [2024-11-22 04:04:50,390 INFO L226 Difference]: Without dead ends: 2207 [2024-11-22 04:04:50,393 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 04:04:50,393 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 331 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:50,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 468 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:04:50,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2024-11-22 04:04:50,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2109. [2024-11-22 04:04:50,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2109 states, 1653 states have (on average 1.2885662431941924) internal successors, (2130), 1681 states have internal predecessors, (2130), 232 states have call successors, (232), 179 states have call predecessors, (232), 222 states have return successors, (332), 255 states have call predecessors, (332), 230 states have call successors, (332) [2024-11-22 04:04:50,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 2694 transitions. [2024-11-22 04:04:50,558 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 2694 transitions. Word has length 66 [2024-11-22 04:04:50,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:50,560 INFO L471 AbstractCegarLoop]: Abstraction has 2109 states and 2694 transitions. [2024-11-22 04:04:50,560 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 04:04:50,561 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 2694 transitions. [2024-11-22 04:04:50,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-22 04:04:50,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:50,564 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:50,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 04:04:50,564 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:50,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:50,566 INFO L85 PathProgramCache]: Analyzing trace with hash -968522334, now seen corresponding path program 1 times [2024-11-22 04:04:50,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:50,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266255116] [2024-11-22 04:04:50,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:50,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:50,604 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 04:04:50,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:50,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266255116] [2024-11-22 04:04:50,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266255116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:50,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:50,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:04:50,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508078370] [2024-11-22 04:04:50,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:50,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:04:50,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:50,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:04:50,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:04:50,608 INFO L87 Difference]: Start difference. First operand 2109 states and 2694 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 04:04:50,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:50,778 INFO L93 Difference]: Finished difference Result 4811 states and 6108 transitions. [2024-11-22 04:04:50,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:04:50,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 72 [2024-11-22 04:04:50,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:50,790 INFO L225 Difference]: With dead ends: 4811 [2024-11-22 04:04:50,791 INFO L226 Difference]: Without dead ends: 2881 [2024-11-22 04:04:50,794 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 04:04:50,796 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 331 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:50,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 483 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:04:50,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2024-11-22 04:04:50,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2841. [2024-11-22 04:04:50,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2221 states have (on average 1.2760018009905447) internal successors, (2834), 2257 states have internal predecessors, (2834), 312 states have call successors, (312), 249 states have call predecessors, (312), 306 states have return successors, (441), 341 states have call predecessors, (441), 310 states have call successors, (441) [2024-11-22 04:04:50,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 3587 transitions. [2024-11-22 04:04:50,929 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 3587 transitions. Word has length 72 [2024-11-22 04:04:50,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:50,930 INFO L471 AbstractCegarLoop]: Abstraction has 2841 states and 3587 transitions. [2024-11-22 04:04:50,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 04:04:50,931 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 3587 transitions. [2024-11-22 04:04:50,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-22 04:04:50,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:50,933 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 04:04:50,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 04:04:50,934 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:50,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:50,937 INFO L85 PathProgramCache]: Analyzing trace with hash -475694546, now seen corresponding path program 1 times [2024-11-22 04:04:50,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:50,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581228999] [2024-11-22 04:04:50,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:50,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:51,015 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 04:04:51,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:51,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581228999] [2024-11-22 04:04:51,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581228999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:51,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:51,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:04:51,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708163680] [2024-11-22 04:04:51,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:51,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:04:51,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:51,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:04:51,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:04:51,017 INFO L87 Difference]: Start difference. First operand 2841 states and 3587 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 04:04:51,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:51,272 INFO L93 Difference]: Finished difference Result 3372 states and 4242 transitions. [2024-11-22 04:04:51,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:04:51,272 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 04:04:51,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:51,286 INFO L225 Difference]: With dead ends: 3372 [2024-11-22 04:04:51,287 INFO L226 Difference]: Without dead ends: 3369 [2024-11-22 04:04:51,287 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 04:04:51,288 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 667 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:51,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 462 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:04:51,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3369 states. [2024-11-22 04:04:51,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3369 to 3335. [2024-11-22 04:04:51,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3335 states, 2606 states have (on average 1.2686108979278587) internal successors, (3306), 2647 states have internal predecessors, (3306), 362 states have call successors, (362), 293 states have call predecessors, (362), 365 states have return successors, (520), 401 states have call predecessors, (520), 361 states have call successors, (520) [2024-11-22 04:04:51,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3335 states to 3335 states and 4188 transitions. [2024-11-22 04:04:51,474 INFO L78 Accepts]: Start accepts. Automaton has 3335 states and 4188 transitions. Word has length 73 [2024-11-22 04:04:51,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:51,474 INFO L471 AbstractCegarLoop]: Abstraction has 3335 states and 4188 transitions. [2024-11-22 04:04:51,474 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 04:04:51,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3335 states and 4188 transitions. [2024-11-22 04:04:51,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 04:04:51,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:51,476 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 04:04:51,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 04:04:51,477 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:51,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:51,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1862406292, now seen corresponding path program 1 times [2024-11-22 04:04:51,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:51,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261193579] [2024-11-22 04:04:51,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:51,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:51,571 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 04:04:51,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:51,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261193579] [2024-11-22 04:04:51,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261193579] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:04:51,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104761618] [2024-11-22 04:04:51,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:51,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:04:51,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:04:51,574 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 04:04:51,575 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 04:04:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:51,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 04:04:51,675 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:04:51,877 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 04:04:51,878 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:04:51,947 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 04:04:51,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104761618] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:04:51,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:04:51,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 7 [2024-11-22 04:04:51,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146950761] [2024-11-22 04:04:51,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:04:51,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 04:04:51,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:51,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 04:04:51,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:04:51,950 INFO L87 Difference]: Start difference. First operand 3335 states and 4188 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 04:04:52,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:52,621 INFO L93 Difference]: Finished difference Result 7216 states and 9042 transitions. [2024-11-22 04:04:52,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 04:04:52,622 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 04:04:52,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:52,650 INFO L225 Difference]: With dead ends: 7216 [2024-11-22 04:04:52,651 INFO L226 Difference]: Without dead ends: 7213 [2024-11-22 04:04:52,655 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 04:04:52,656 INFO L432 NwaCegarLoop]: 552 mSDtfsCounter, 670 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 2071 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:52,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 2071 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:04:52,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7213 states. [2024-11-22 04:04:53,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7213 to 5125. [2024-11-22 04:04:53,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 4010 states have (on average 1.2673316708229427) internal successors, (5082), 4073 states have internal predecessors, (5082), 546 states have call successors, (546), 451 states have call predecessors, (546), 567 states have return successors, (798), 607 states have call predecessors, (798), 545 states have call successors, (798) [2024-11-22 04:04:53,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 6426 transitions. [2024-11-22 04:04:53,139 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 6426 transitions. Word has length 74 [2024-11-22 04:04:53,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:53,139 INFO L471 AbstractCegarLoop]: Abstraction has 5125 states and 6426 transitions. [2024-11-22 04:04:53,140 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 04:04:53,140 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 6426 transitions. [2024-11-22 04:04:53,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-22 04:04:53,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:53,143 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 04:04:53,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 04:04:53,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-22 04:04:53,344 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:53,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:53,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1528425426, now seen corresponding path program 2 times [2024-11-22 04:04:53,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:53,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874918204] [2024-11-22 04:04:53,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 04:04:53,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:53,360 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 04:04:53,361 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 04:04:53,382 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 04:04:53,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:53,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874918204] [2024-11-22 04:04:53,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874918204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:53,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:53,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:04:53,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919670953] [2024-11-22 04:04:53,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:53,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:04:53,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:53,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:04:53,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:04:53,384 INFO L87 Difference]: Start difference. First operand 5125 states and 6426 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 04:04:53,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:53,623 INFO L93 Difference]: Finished difference Result 7592 states and 9555 transitions. [2024-11-22 04:04:53,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:04:53,623 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 04:04:53,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:53,638 INFO L225 Difference]: With dead ends: 7592 [2024-11-22 04:04:53,639 INFO L226 Difference]: Without dead ends: 3517 [2024-11-22 04:04:53,647 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 04:04:53,649 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 330 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 563 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 04:04:53,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 563 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:04:53,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3517 states. [2024-11-22 04:04:53,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3517 to 3497. [2024-11-22 04:04:53,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 2738 states have (on average 1.24981738495252) internal successors, (3422), 2779 states have internal predecessors, (3422), 378 states have call successors, (378), 307 states have call predecessors, (378), 379 states have return successors, (524), 417 states have call predecessors, (524), 377 states have call successors, (524) [2024-11-22 04:04:53,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 4324 transitions. [2024-11-22 04:04:53,909 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 4324 transitions. Word has length 77 [2024-11-22 04:04:53,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:53,909 INFO L471 AbstractCegarLoop]: Abstraction has 3497 states and 4324 transitions. [2024-11-22 04:04:53,909 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 04:04:53,909 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 4324 transitions. [2024-11-22 04:04:53,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:04:53,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:53,913 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:53,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 04:04:53,913 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:53,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:53,914 INFO L85 PathProgramCache]: Analyzing trace with hash 903920969, now seen corresponding path program 1 times [2024-11-22 04:04:53,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:53,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617837453] [2024-11-22 04:04:53,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:53,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:53,996 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 04:04:53,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:53,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617837453] [2024-11-22 04:04:53,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617837453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:53,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:53,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:04:53,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149039324] [2024-11-22 04:04:53,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:53,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:04:53,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:53,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:04:53,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:04:54,000 INFO L87 Difference]: Start difference. First operand 3497 states and 4324 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 04:04:54,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:54,514 INFO L93 Difference]: Finished difference Result 3799 states and 4776 transitions. [2024-11-22 04:04:54,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:04:54,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 79 [2024-11-22 04:04:54,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:54,533 INFO L225 Difference]: With dead ends: 3799 [2024-11-22 04:04:54,533 INFO L226 Difference]: Without dead ends: 3654 [2024-11-22 04:04:54,536 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 04:04:54,536 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 557 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:54,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 787 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:04:54,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2024-11-22 04:04:54,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 3643. [2024-11-22 04:04:54,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3643 states, 2865 states have (on average 1.2610820244328098) internal successors, (3613), 2907 states have internal predecessors, (3613), 390 states have call successors, (390), 313 states have call predecessors, (390), 386 states have return successors, (537), 429 states have call predecessors, (537), 389 states have call successors, (537) [2024-11-22 04:04:54,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 4540 transitions. [2024-11-22 04:04:54,855 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 4540 transitions. Word has length 79 [2024-11-22 04:04:54,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:54,855 INFO L471 AbstractCegarLoop]: Abstraction has 3643 states and 4540 transitions. [2024-11-22 04:04:54,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 04:04:54,856 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 4540 transitions. [2024-11-22 04:04:54,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:04:54,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:54,859 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:54,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 04:04:54,859 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:54,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:54,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1140969165, now seen corresponding path program 1 times [2024-11-22 04:04:54,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:54,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383554707] [2024-11-22 04:04:54,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:54,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:54,954 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 04:04:54,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:54,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383554707] [2024-11-22 04:04:54,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383554707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:54,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:54,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:54,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38111211] [2024-11-22 04:04:54,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:54,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:54,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:54,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:54,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:54,957 INFO L87 Difference]: Start difference. First operand 3643 states and 4540 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 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 04:04:55,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:55,772 INFO L93 Difference]: Finished difference Result 4114 states and 5245 transitions. [2024-11-22 04:04:55,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:04:55,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-22 04:04:55,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:55,784 INFO L225 Difference]: With dead ends: 4114 [2024-11-22 04:04:55,784 INFO L226 Difference]: Without dead ends: 3823 [2024-11-22 04:04:55,786 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 04:04:55,786 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 549 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 1374 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:55,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 1374 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:04:55,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3823 states. [2024-11-22 04:04:55,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3823 to 3780. [2024-11-22 04:04:55,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3780 states, 2983 states have (on average 1.2691920885015084) internal successors, (3786), 3026 states have internal predecessors, (3786), 402 states have call successors, (402), 319 states have call predecessors, (402), 393 states have return successors, (552), 442 states have call predecessors, (552), 401 states have call successors, (552) [2024-11-22 04:04:56,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3780 states to 3780 states and 4740 transitions. [2024-11-22 04:04:56,004 INFO L78 Accepts]: Start accepts. Automaton has 3780 states and 4740 transitions. Word has length 79 [2024-11-22 04:04:56,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:56,005 INFO L471 AbstractCegarLoop]: Abstraction has 3780 states and 4740 transitions. [2024-11-22 04:04:56,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 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 04:04:56,005 INFO L276 IsEmpty]: Start isEmpty. Operand 3780 states and 4740 transitions. [2024-11-22 04:04:56,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:04:56,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:56,007 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:56,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 04:04:56,008 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:56,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:56,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1086576267, now seen corresponding path program 1 times [2024-11-22 04:04:56,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:56,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168277911] [2024-11-22 04:04:56,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:56,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:56,088 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 04:04:56,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:56,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168277911] [2024-11-22 04:04:56,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168277911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:56,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:56,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:56,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626589872] [2024-11-22 04:04:56,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:56,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:56,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:56,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:56,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:56,091 INFO L87 Difference]: Start difference. First operand 3780 states and 4740 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 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 04:04:56,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:56,803 INFO L93 Difference]: Finished difference Result 4541 states and 5876 transitions. [2024-11-22 04:04:56,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:04:56,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-22 04:04:56,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:56,819 INFO L225 Difference]: With dead ends: 4541 [2024-11-22 04:04:56,819 INFO L226 Difference]: Without dead ends: 4113 [2024-11-22 04:04:56,821 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 04:04:56,821 INFO L432 NwaCegarLoop]: 353 mSDtfsCounter, 544 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1358 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:56,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 1358 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:04:56,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4113 states. [2024-11-22 04:04:57,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4113 to 4067. [2024-11-22 04:04:57,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4067 states, 3230 states have (on average 1.285139318885449) internal successors, (4151), 3277 states have internal predecessors, (4151), 426 states have call successors, (426), 331 states have call predecessors, (426), 409 states have return successors, (588), 468 states have call predecessors, (588), 425 states have call successors, (588) [2024-11-22 04:04:57,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 5165 transitions. [2024-11-22 04:04:57,049 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 5165 transitions. Word has length 79 [2024-11-22 04:04:57,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:57,050 INFO L471 AbstractCegarLoop]: Abstraction has 4067 states and 5165 transitions. [2024-11-22 04:04:57,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 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 04:04:57,050 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 5165 transitions. [2024-11-22 04:04:57,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:04:57,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:57,053 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:57,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 04:04:57,053 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:57,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:57,054 INFO L85 PathProgramCache]: Analyzing trace with hash 669179661, now seen corresponding path program 1 times [2024-11-22 04:04:57,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:57,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480877454] [2024-11-22 04:04:57,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:57,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:57,133 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 04:04:57,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:57,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480877454] [2024-11-22 04:04:57,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480877454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:57,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:57,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:04:57,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816582764] [2024-11-22 04:04:57,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:57,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:04:57,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:57,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:04:57,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:04:57,136 INFO L87 Difference]: Start difference. First operand 4067 states and 5165 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 04:04:57,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:57,590 INFO L93 Difference]: Finished difference Result 4848 states and 6346 transitions. [2024-11-22 04:04:57,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:04:57,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-22 04:04:57,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:57,610 INFO L225 Difference]: With dead ends: 4848 [2024-11-22 04:04:57,610 INFO L226 Difference]: Without dead ends: 4133 [2024-11-22 04:04:57,613 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 04:04:57,613 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 451 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:57,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 597 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:04:57,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4133 states. [2024-11-22 04:04:57,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4133 to 4067. [2024-11-22 04:04:57,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4067 states, 3230 states have (on average 1.2835913312693499) internal successors, (4146), 3277 states have internal predecessors, (4146), 426 states have call successors, (426), 331 states have call predecessors, (426), 409 states have return successors, (588), 468 states have call predecessors, (588), 425 states have call successors, (588) [2024-11-22 04:04:57,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 5160 transitions. [2024-11-22 04:04:57,984 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 5160 transitions. Word has length 79 [2024-11-22 04:04:57,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:57,984 INFO L471 AbstractCegarLoop]: Abstraction has 4067 states and 5160 transitions. [2024-11-22 04:04:57,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 04:04:57,984 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 5160 transitions. [2024-11-22 04:04:57,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:04:57,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:57,987 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:57,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 04:04:57,987 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:57,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:57,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1348451915, now seen corresponding path program 1 times [2024-11-22 04:04:57,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:57,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972799981] [2024-11-22 04:04:57,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:57,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:58,050 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 04:04:58,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:58,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972799981] [2024-11-22 04:04:58,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972799981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:58,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:58,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:04:58,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318441774] [2024-11-22 04:04:58,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:58,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:04:58,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:58,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:04:58,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:04:58,052 INFO L87 Difference]: Start difference. First operand 4067 states and 5160 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 04:04:58,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:58,746 INFO L93 Difference]: Finished difference Result 4837 states and 6314 transitions. [2024-11-22 04:04:58,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:04:58,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-22 04:04:58,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:58,757 INFO L225 Difference]: With dead ends: 4837 [2024-11-22 04:04:58,758 INFO L226 Difference]: Without dead ends: 4122 [2024-11-22 04:04:58,760 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 04:04:58,760 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 446 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:58,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 587 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:04:58,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4122 states. [2024-11-22 04:04:59,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4122 to 4067. [2024-11-22 04:04:59,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4067 states, 3230 states have (on average 1.2820433436532508) internal successors, (4141), 3277 states have internal predecessors, (4141), 426 states have call successors, (426), 331 states have call predecessors, (426), 409 states have return successors, (588), 468 states have call predecessors, (588), 425 states have call successors, (588) [2024-11-22 04:04:59,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 5155 transitions. [2024-11-22 04:04:59,042 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 5155 transitions. Word has length 79 [2024-11-22 04:04:59,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:04:59,042 INFO L471 AbstractCegarLoop]: Abstraction has 4067 states and 5155 transitions. [2024-11-22 04:04:59,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 04:04:59,043 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 5155 transitions. [2024-11-22 04:04:59,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:04:59,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:04:59,045 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:04:59,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 04:04:59,045 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:04:59,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:04:59,046 INFO L85 PathProgramCache]: Analyzing trace with hash -984940723, now seen corresponding path program 1 times [2024-11-22 04:04:59,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:04:59,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780192643] [2024-11-22 04:04:59,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:04:59,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:04:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:04:59,108 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 04:04:59,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:04:59,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780192643] [2024-11-22 04:04:59,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780192643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:04:59,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:04:59,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:04:59,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433392902] [2024-11-22 04:04:59,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:04:59,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:04:59,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:04:59,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:04:59,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:04:59,111 INFO L87 Difference]: Start difference. First operand 4067 states and 5155 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 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 04:04:59,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:04:59,810 INFO L93 Difference]: Finished difference Result 5482 states and 7250 transitions. [2024-11-22 04:04:59,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:04:59,811 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-22 04:04:59,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:04:59,825 INFO L225 Difference]: With dead ends: 5482 [2024-11-22 04:04:59,826 INFO L226 Difference]: Without dead ends: 4767 [2024-11-22 04:04:59,829 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 04:04:59,829 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 596 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:04:59,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 1291 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:04:59,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4767 states. [2024-11-22 04:05:00,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4767 to 4624. [2024-11-22 04:05:00,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4624 states, 3705 states have (on average 1.3044534412955466) internal successors, (4833), 3766 states have internal predecessors, (4833), 470 states have call successors, (470), 355 states have call predecessors, (470), 447 states have return successors, (680), 516 states have call predecessors, (680), 469 states have call successors, (680) [2024-11-22 04:05:00,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4624 states to 4624 states and 5983 transitions. [2024-11-22 04:05:00,197 INFO L78 Accepts]: Start accepts. Automaton has 4624 states and 5983 transitions. Word has length 79 [2024-11-22 04:05:00,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:00,198 INFO L471 AbstractCegarLoop]: Abstraction has 4624 states and 5983 transitions. [2024-11-22 04:05:00,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 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 04:05:00,198 INFO L276 IsEmpty]: Start isEmpty. Operand 4624 states and 5983 transitions. [2024-11-22 04:05:00,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:05:00,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:00,201 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:00,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 04:05:00,201 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:00,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:00,202 INFO L85 PathProgramCache]: Analyzing trace with hash -783116789, now seen corresponding path program 1 times [2024-11-22 04:05:00,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:00,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655667025] [2024-11-22 04:05:00,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:00,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:00,265 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 04:05:00,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:00,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655667025] [2024-11-22 04:05:00,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655667025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:00,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:00,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:05:00,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356582734] [2024-11-22 04:05:00,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:00,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:00,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:00,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:00,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:05:00,268 INFO L87 Difference]: Start difference. First operand 4624 states and 5983 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 04:05:00,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:00,790 INFO L93 Difference]: Finished difference Result 5954 states and 7968 transitions. [2024-11-22 04:05:00,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:05:00,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-22 04:05:00,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:00,805 INFO L225 Difference]: With dead ends: 5954 [2024-11-22 04:05:00,805 INFO L226 Difference]: Without dead ends: 4682 [2024-11-22 04:05:00,809 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 04:05:00,810 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 441 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:00,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 567 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:05:00,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4682 states. [2024-11-22 04:05:01,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4682 to 4624. [2024-11-22 04:05:01,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4624 states, 3705 states have (on average 1.3020242914979756) internal successors, (4824), 3766 states have internal predecessors, (4824), 470 states have call successors, (470), 355 states have call predecessors, (470), 447 states have return successors, (680), 516 states have call predecessors, (680), 469 states have call successors, (680) [2024-11-22 04:05:01,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4624 states to 4624 states and 5974 transitions. [2024-11-22 04:05:01,169 INFO L78 Accepts]: Start accepts. Automaton has 4624 states and 5974 transitions. Word has length 79 [2024-11-22 04:05:01,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:01,169 INFO L471 AbstractCegarLoop]: Abstraction has 4624 states and 5974 transitions. [2024-11-22 04:05:01,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 04:05:01,169 INFO L276 IsEmpty]: Start isEmpty. Operand 4624 states and 5974 transitions. [2024-11-22 04:05:01,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:05:01,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:01,172 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:01,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 04:05:01,172 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:01,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:01,173 INFO L85 PathProgramCache]: Analyzing trace with hash -349387703, now seen corresponding path program 1 times [2024-11-22 04:05:01,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:01,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333006244] [2024-11-22 04:05:01,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:01,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:01,214 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 04:05:01,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:01,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333006244] [2024-11-22 04:05:01,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333006244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:01,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:01,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:05:01,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696356236] [2024-11-22 04:05:01,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:01,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:01,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:01,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:01,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:05:01,216 INFO L87 Difference]: Start difference. First operand 4624 states and 5974 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 04:05:01,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:01,532 INFO L93 Difference]: Finished difference Result 5922 states and 7923 transitions. [2024-11-22 04:05:01,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:05:01,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-22 04:05:01,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:01,549 INFO L225 Difference]: With dead ends: 5922 [2024-11-22 04:05:01,550 INFO L226 Difference]: Without dead ends: 4651 [2024-11-22 04:05:01,554 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 04:05:01,555 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 0 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1410 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 04:05:01,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1410 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:01,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4651 states. [2024-11-22 04:05:02,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4651 to 4651. [2024-11-22 04:05:02,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4651 states, 3732 states have (on average 1.29983922829582) internal successors, (4851), 3793 states have internal predecessors, (4851), 470 states have call successors, (470), 355 states have call predecessors, (470), 447 states have return successors, (680), 516 states have call predecessors, (680), 469 states have call successors, (680) [2024-11-22 04:05:02,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4651 states to 4651 states and 6001 transitions. [2024-11-22 04:05:02,174 INFO L78 Accepts]: Start accepts. Automaton has 4651 states and 6001 transitions. Word has length 79 [2024-11-22 04:05:02,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:02,175 INFO L471 AbstractCegarLoop]: Abstraction has 4651 states and 6001 transitions. [2024-11-22 04:05:02,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 04:05:02,175 INFO L276 IsEmpty]: Start isEmpty. Operand 4651 states and 6001 transitions. [2024-11-22 04:05:02,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:05:02,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:02,179 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:02,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 04:05:02,180 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:02,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:02,180 INFO L85 PathProgramCache]: Analyzing trace with hash -364906421, now seen corresponding path program 1 times [2024-11-22 04:05:02,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:02,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665059748] [2024-11-22 04:05:02,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:02,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:02,221 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 04:05:02,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:02,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665059748] [2024-11-22 04:05:02,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665059748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:02,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:02,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:05:02,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784092403] [2024-11-22 04:05:02,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:02,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:05:02,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:02,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:05:02,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:05:02,225 INFO L87 Difference]: Start difference. First operand 4651 states and 6001 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 04:05:02,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:02,788 INFO L93 Difference]: Finished difference Result 7201 states and 9748 transitions. [2024-11-22 04:05:02,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:05:02,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 79 [2024-11-22 04:05:02,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:02,805 INFO L225 Difference]: With dead ends: 7201 [2024-11-22 04:05:02,805 INFO L226 Difference]: Without dead ends: 5903 [2024-11-22 04:05:02,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:05:02,810 INFO L432 NwaCegarLoop]: 544 mSDtfsCounter, 521 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:02,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1002 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:05:02,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5903 states. [2024-11-22 04:05:03,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5903 to 5883. [2024-11-22 04:05:03,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5883 states, 4794 states have (on average 1.3291614518147685) internal successors, (6372), 4875 states have internal predecessors, (6372), 566 states have call successors, (566), 409 states have call predecessors, (566), 521 states have return successors, (833), 612 states have call predecessors, (833), 565 states have call successors, (833) [2024-11-22 04:05:03,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5883 states to 5883 states and 7771 transitions. [2024-11-22 04:05:03,226 INFO L78 Accepts]: Start accepts. Automaton has 5883 states and 7771 transitions. Word has length 79 [2024-11-22 04:05:03,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:03,226 INFO L471 AbstractCegarLoop]: Abstraction has 5883 states and 7771 transitions. [2024-11-22 04:05:03,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 04:05:03,226 INFO L276 IsEmpty]: Start isEmpty. Operand 5883 states and 7771 transitions. [2024-11-22 04:05:03,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:05:03,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:03,229 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:03,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 04:05:03,229 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:03,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:03,230 INFO L85 PathProgramCache]: Analyzing trace with hash 2036618700, now seen corresponding path program 1 times [2024-11-22 04:05:03,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:03,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505770993] [2024-11-22 04:05:03,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:03,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:03,278 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 04:05:03,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:03,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505770993] [2024-11-22 04:05:03,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505770993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:03,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:03,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:05:03,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414064952] [2024-11-22 04:05:03,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:03,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:03,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:03,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:03,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:05:03,280 INFO L87 Difference]: Start difference. First operand 5883 states and 7771 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 04:05:03,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:03,655 INFO L93 Difference]: Finished difference Result 8440 states and 11559 transitions. [2024-11-22 04:05:03,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:05:03,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-22 04:05:03,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:03,675 INFO L225 Difference]: With dead ends: 8440 [2024-11-22 04:05:03,676 INFO L226 Difference]: Without dead ends: 5910 [2024-11-22 04:05:03,682 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 04:05:03,683 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 0 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1410 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 04:05:03,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1410 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:03,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5910 states. [2024-11-22 04:05:04,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5910 to 5910. [2024-11-22 04:05:04,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 4821 states have (on average 1.3254511512134413) internal successors, (6390), 4902 states have internal predecessors, (6390), 566 states have call successors, (566), 409 states have call predecessors, (566), 521 states have return successors, (833), 612 states have call predecessors, (833), 565 states have call successors, (833) [2024-11-22 04:05:04,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 7789 transitions. [2024-11-22 04:05:04,134 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 7789 transitions. Word has length 79 [2024-11-22 04:05:04,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:04,135 INFO L471 AbstractCegarLoop]: Abstraction has 5910 states and 7789 transitions. [2024-11-22 04:05:04,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 04:05:04,135 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 7789 transitions. [2024-11-22 04:05:04,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:05:04,138 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:04,138 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:04,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 04:05:04,138 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:04,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:04,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1139225422, now seen corresponding path program 1 times [2024-11-22 04:05:04,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:04,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893864822] [2024-11-22 04:05:04,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:04,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:04,200 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 04:05:04,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:04,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893864822] [2024-11-22 04:05:04,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893864822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:04,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:04,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:05:04,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568827802] [2024-11-22 04:05:04,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:04,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:04,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:04,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:04,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:05:04,203 INFO L87 Difference]: Start difference. First operand 5910 states and 7789 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 04:05:04,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:04,556 INFO L93 Difference]: Finished difference Result 8521 states and 11631 transitions. [2024-11-22 04:05:04,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:05:04,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-22 04:05:04,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:04,571 INFO L225 Difference]: With dead ends: 8521 [2024-11-22 04:05:04,571 INFO L226 Difference]: Without dead ends: 5964 [2024-11-22 04:05:04,576 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 04:05:04,577 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 0 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1410 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 04:05:04,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1410 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:04,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5964 states. [2024-11-22 04:05:04,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5964 to 5964. [2024-11-22 04:05:04,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5964 states, 4875 states have (on average 1.321846153846154) internal successors, (6444), 4956 states have internal predecessors, (6444), 566 states have call successors, (566), 409 states have call predecessors, (566), 521 states have return successors, (833), 612 states have call predecessors, (833), 565 states have call successors, (833) [2024-11-22 04:05:04,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5964 states to 5964 states and 7843 transitions. [2024-11-22 04:05:05,000 INFO L78 Accepts]: Start accepts. Automaton has 5964 states and 7843 transitions. Word has length 79 [2024-11-22 04:05:05,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:05,000 INFO L471 AbstractCegarLoop]: Abstraction has 5964 states and 7843 transitions. [2024-11-22 04:05:05,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 04:05:05,000 INFO L276 IsEmpty]: Start isEmpty. Operand 5964 states and 7843 transitions. [2024-11-22 04:05:05,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:05:05,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:05,004 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:05,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 04:05:05,004 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:05,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:05,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1798756944, now seen corresponding path program 1 times [2024-11-22 04:05:05,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:05,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010714132] [2024-11-22 04:05:05,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:05,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:05,034 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 04:05:05,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:05,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010714132] [2024-11-22 04:05:05,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010714132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:05,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:05,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:05:05,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837893923] [2024-11-22 04:05:05,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:05,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:05:05,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:05,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:05:05,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:05:05,037 INFO L87 Difference]: Start difference. First operand 5964 states and 7843 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 04:05:05,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:05,633 INFO L93 Difference]: Finished difference Result 11095 states and 15244 transitions. [2024-11-22 04:05:05,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:05:05,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 79 [2024-11-22 04:05:05,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:05,669 INFO L225 Difference]: With dead ends: 11095 [2024-11-22 04:05:05,670 INFO L226 Difference]: Without dead ends: 8484 [2024-11-22 04:05:05,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:05:05,682 INFO L432 NwaCegarLoop]: 544 mSDtfsCounter, 533 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:05,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 1002 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 04:05:05,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8484 states. [2024-11-22 04:05:06,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8484 to 8446. [2024-11-22 04:05:06,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8446 states, 7026 states have (on average 1.3475661827497865) internal successors, (9468), 7147 states have internal predecessors, (9468), 749 states have call successors, (749), 517 states have call predecessors, (749), 669 states have return successors, (1130), 795 states have call predecessors, (1130), 748 states have call successors, (1130) [2024-11-22 04:05:06,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8446 states to 8446 states and 11347 transitions. [2024-11-22 04:05:06,527 INFO L78 Accepts]: Start accepts. Automaton has 8446 states and 11347 transitions. Word has length 79 [2024-11-22 04:05:06,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:06,528 INFO L471 AbstractCegarLoop]: Abstraction has 8446 states and 11347 transitions. [2024-11-22 04:05:06,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 04:05:06,528 INFO L276 IsEmpty]: Start isEmpty. Operand 8446 states and 11347 transitions. [2024-11-22 04:05:06,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:05:06,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:06,534 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:06,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 04:05:06,534 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:06,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:06,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1444761263, now seen corresponding path program 1 times [2024-11-22 04:05:06,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:06,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835743257] [2024-11-22 04:05:06,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:06,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:06,587 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 04:05:06,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:06,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835743257] [2024-11-22 04:05:06,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835743257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:06,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:06,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:05:06,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307096600] [2024-11-22 04:05:06,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:06,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:06,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:06,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:06,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:05:06,591 INFO L87 Difference]: Start difference. First operand 8446 states and 11347 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 04:05:07,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:07,247 INFO L93 Difference]: Finished difference Result 13593 states and 18822 transitions. [2024-11-22 04:05:07,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:05:07,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 79 [2024-11-22 04:05:07,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:07,277 INFO L225 Difference]: With dead ends: 13593 [2024-11-22 04:05:07,277 INFO L226 Difference]: Without dead ends: 8500 [2024-11-22 04:05:07,291 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 04:05:07,292 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 0 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1410 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 04:05:07,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1410 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:07,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8500 states. [2024-11-22 04:05:07,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8500 to 8500. [2024-11-22 04:05:07,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8500 states, 7080 states have (on average 1.3423728813559321) internal successors, (9504), 7201 states have internal predecessors, (9504), 749 states have call successors, (749), 517 states have call predecessors, (749), 669 states have return successors, (1130), 795 states have call predecessors, (1130), 748 states have call successors, (1130) [2024-11-22 04:05:07,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8500 states to 8500 states and 11383 transitions. [2024-11-22 04:05:07,907 INFO L78 Accepts]: Start accepts. Automaton has 8500 states and 11383 transitions. Word has length 79 [2024-11-22 04:05:07,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:07,908 INFO L471 AbstractCegarLoop]: Abstraction has 8500 states and 11383 transitions. [2024-11-22 04:05:07,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 04:05:07,908 INFO L276 IsEmpty]: Start isEmpty. Operand 8500 states and 11383 transitions. [2024-11-22 04:05:07,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:05:07,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:07,911 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:07,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 04:05:07,911 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:07,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:07,912 INFO L85 PathProgramCache]: Analyzing trace with hash -743161389, now seen corresponding path program 1 times [2024-11-22 04:05:07,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:07,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529700894] [2024-11-22 04:05:07,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:07,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:07,982 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 04:05:07,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:07,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529700894] [2024-11-22 04:05:07,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529700894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:07,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:07,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:05:07,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601879458] [2024-11-22 04:05:07,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:07,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:05:07,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:07,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:05:07,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:07,984 INFO L87 Difference]: Start difference. First operand 8500 states and 11383 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:08,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:08,789 INFO L93 Difference]: Finished difference Result 9952 states and 13469 transitions. [2024-11-22 04:05:08,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:05:08,789 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-22 04:05:08,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:08,815 INFO L225 Difference]: With dead ends: 9952 [2024-11-22 04:05:08,815 INFO L226 Difference]: Without dead ends: 6942 [2024-11-22 04:05:08,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 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 04:05:08,825 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 531 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:08,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 994 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:05:08,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6942 states. [2024-11-22 04:05:09,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6942 to 6656. [2024-11-22 04:05:09,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6656 states, 5488 states have (on average 1.313411078717201) internal successors, (7208), 5553 states have internal predecessors, (7208), 625 states have call successors, (625), 445 states have call predecessors, (625), 541 states have return successors, (826), 667 states have call predecessors, (826), 624 states have call successors, (826) [2024-11-22 04:05:09,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6656 states to 6656 states and 8659 transitions. [2024-11-22 04:05:09,295 INFO L78 Accepts]: Start accepts. Automaton has 6656 states and 8659 transitions. Word has length 79 [2024-11-22 04:05:09,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:09,295 INFO L471 AbstractCegarLoop]: Abstraction has 6656 states and 8659 transitions. [2024-11-22 04:05:09,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:09,295 INFO L276 IsEmpty]: Start isEmpty. Operand 6656 states and 8659 transitions. [2024-11-22 04:05:09,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:05:09,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:09,297 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:09,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 04:05:09,297 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:09,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:09,298 INFO L85 PathProgramCache]: Analyzing trace with hash -681121775, now seen corresponding path program 1 times [2024-11-22 04:05:09,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:09,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410980444] [2024-11-22 04:05:09,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:09,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:09,367 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 04:05:09,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:09,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410980444] [2024-11-22 04:05:09,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410980444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:09,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:09,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:05:09,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194630565] [2024-11-22 04:05:09,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:09,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:05:09,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:09,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:05:09,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:09,369 INFO L87 Difference]: Start difference. First operand 6656 states and 8659 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:10,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:10,091 INFO L93 Difference]: Finished difference Result 7972 states and 10521 transitions. [2024-11-22 04:05:10,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:05:10,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-22 04:05:10,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:10,109 INFO L225 Difference]: With dead ends: 7972 [2024-11-22 04:05:10,109 INFO L226 Difference]: Without dead ends: 5702 [2024-11-22 04:05:10,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 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 04:05:10,117 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 523 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:10,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 986 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:05:10,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5702 states. [2024-11-22 04:05:10,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5702 to 5552. [2024-11-22 04:05:10,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5552 states, 4532 states have (on average 1.2983230361871139) internal successors, (5884), 4581 states have internal predecessors, (5884), 541 states have call successors, (541), 397 states have call predecessors, (541), 477 states have return successors, (700), 581 states have call predecessors, (700), 540 states have call successors, (700) [2024-11-22 04:05:10,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5552 states to 5552 states and 7125 transitions. [2024-11-22 04:05:10,481 INFO L78 Accepts]: Start accepts. Automaton has 5552 states and 7125 transitions. Word has length 79 [2024-11-22 04:05:10,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:10,482 INFO L471 AbstractCegarLoop]: Abstraction has 5552 states and 7125 transitions. [2024-11-22 04:05:10,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:10,482 INFO L276 IsEmpty]: Start isEmpty. Operand 5552 states and 7125 transitions. [2024-11-22 04:05:10,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:05:10,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:10,484 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:10,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 04:05:10,484 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:10,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:10,484 INFO L85 PathProgramCache]: Analyzing trace with hash -540573165, now seen corresponding path program 1 times [2024-11-22 04:05:10,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:10,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502223459] [2024-11-22 04:05:10,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:10,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:10,533 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 04:05:10,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:10,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502223459] [2024-11-22 04:05:10,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502223459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:10,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:10,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:05:10,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000182363] [2024-11-22 04:05:10,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:10,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:10,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:10,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:10,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:05:10,535 INFO L87 Difference]: Start difference. First operand 5552 states and 7125 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:11,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:11,101 INFO L93 Difference]: Finished difference Result 7750 states and 10164 transitions. [2024-11-22 04:05:11,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 04:05:11,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-22 04:05:11,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:11,118 INFO L225 Difference]: With dead ends: 7750 [2024-11-22 04:05:11,118 INFO L226 Difference]: Without dead ends: 5552 [2024-11-22 04:05:11,122 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 04:05:11,123 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 436 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:11,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 562 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:05:11,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5552 states. [2024-11-22 04:05:11,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5552 to 5552. [2024-11-22 04:05:11,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5552 states, 4532 states have (on average 1.292144748455428) internal successors, (5856), 4581 states have internal predecessors, (5856), 541 states have call successors, (541), 397 states have call predecessors, (541), 477 states have return successors, (700), 581 states have call predecessors, (700), 540 states have call successors, (700) [2024-11-22 04:05:11,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5552 states to 5552 states and 7097 transitions. [2024-11-22 04:05:11,497 INFO L78 Accepts]: Start accepts. Automaton has 5552 states and 7097 transitions. Word has length 79 [2024-11-22 04:05:11,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:11,497 INFO L471 AbstractCegarLoop]: Abstraction has 5552 states and 7097 transitions. [2024-11-22 04:05:11,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:11,498 INFO L276 IsEmpty]: Start isEmpty. Operand 5552 states and 7097 transitions. [2024-11-22 04:05:11,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:05:11,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:11,499 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:11,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 04:05:11,499 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:11,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:11,500 INFO L85 PathProgramCache]: Analyzing trace with hash -674586671, now seen corresponding path program 1 times [2024-11-22 04:05:11,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:11,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473641932] [2024-11-22 04:05:11,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:11,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:11,551 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 04:05:11,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:11,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473641932] [2024-11-22 04:05:11,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473641932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:11,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:11,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:05:11,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025609018] [2024-11-22 04:05:11,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:11,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:11,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:11,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:11,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:05:11,554 INFO L87 Difference]: Start difference. First operand 5552 states and 7097 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:12,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:12,202 INFO L93 Difference]: Finished difference Result 8311 states and 10880 transitions. [2024-11-22 04:05:12,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:05:12,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-22 04:05:12,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:12,221 INFO L225 Difference]: With dead ends: 8311 [2024-11-22 04:05:12,222 INFO L226 Difference]: Without dead ends: 6112 [2024-11-22 04:05:12,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 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 04:05:12,228 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 504 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:12,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 561 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:05:12,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6112 states. [2024-11-22 04:05:12,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6112 to 5848. [2024-11-22 04:05:12,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5848 states, 4804 states have (on average 1.2805995004163198) internal successors, (6152), 4853 states have internal predecessors, (6152), 549 states have call successors, (549), 413 states have call predecessors, (549), 493 states have return successors, (724), 589 states have call predecessors, (724), 548 states have call successors, (724) [2024-11-22 04:05:12,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5848 states to 5848 states and 7425 transitions. [2024-11-22 04:05:12,698 INFO L78 Accepts]: Start accepts. Automaton has 5848 states and 7425 transitions. Word has length 79 [2024-11-22 04:05:12,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:12,699 INFO L471 AbstractCegarLoop]: Abstraction has 5848 states and 7425 transitions. [2024-11-22 04:05:12,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:12,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5848 states and 7425 transitions. [2024-11-22 04:05:12,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:05:12,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:12,700 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:12,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 04:05:12,701 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:12,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:12,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1814942291, now seen corresponding path program 1 times [2024-11-22 04:05:12,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:12,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648757766] [2024-11-22 04:05:12,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:12,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:12,774 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 04:05:12,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:12,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648757766] [2024-11-22 04:05:12,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648757766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:12,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:12,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:05:12,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986400650] [2024-11-22 04:05:12,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:12,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:05:12,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:12,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:05:12,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:12,777 INFO L87 Difference]: Start difference. First operand 5848 states and 7425 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:13,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:13,528 INFO L93 Difference]: Finished difference Result 7994 states and 10299 transitions. [2024-11-22 04:05:13,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 04:05:13,529 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-22 04:05:13,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:13,549 INFO L225 Difference]: With dead ends: 7994 [2024-11-22 04:05:13,549 INFO L226 Difference]: Without dead ends: 6066 [2024-11-22 04:05:13,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 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 04:05:13,554 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 516 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:13,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 941 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 04:05:13,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6066 states. [2024-11-22 04:05:13,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6066 to 5832. [2024-11-22 04:05:13,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5832 states, 4792 states have (on average 1.2787979966611018) internal successors, (6128), 4837 states have internal predecessors, (6128), 549 states have call successors, (549), 413 states have call predecessors, (549), 489 states have return successors, (715), 588 states have call predecessors, (715), 548 states have call successors, (715) [2024-11-22 04:05:13,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5832 states to 5832 states and 7392 transitions. [2024-11-22 04:05:13,961 INFO L78 Accepts]: Start accepts. Automaton has 5832 states and 7392 transitions. Word has length 79 [2024-11-22 04:05:13,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:13,961 INFO L471 AbstractCegarLoop]: Abstraction has 5832 states and 7392 transitions. [2024-11-22 04:05:13,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:13,961 INFO L276 IsEmpty]: Start isEmpty. Operand 5832 states and 7392 transitions. [2024-11-22 04:05:13,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:05:13,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:13,963 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:13,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 04:05:13,963 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:13,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:13,964 INFO L85 PathProgramCache]: Analyzing trace with hash 2033797009, now seen corresponding path program 1 times [2024-11-22 04:05:13,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:13,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248338670] [2024-11-22 04:05:13,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:13,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:14,013 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 04:05:14,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:14,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248338670] [2024-11-22 04:05:14,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248338670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:14,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:14,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:05:14,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284840608] [2024-11-22 04:05:14,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:14,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:14,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:14,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:14,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:05:14,015 INFO L87 Difference]: Start difference. First operand 5832 states and 7392 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:14,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:14,660 INFO L93 Difference]: Finished difference Result 8906 states and 11440 transitions. [2024-11-22 04:05:14,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:05:14,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-11-22 04:05:14,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:14,679 INFO L225 Difference]: With dead ends: 8906 [2024-11-22 04:05:14,679 INFO L226 Difference]: Without dead ends: 6428 [2024-11-22 04:05:14,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 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 04:05:14,685 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 462 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:14,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 556 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:05:14,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6428 states. [2024-11-22 04:05:15,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6428 to 6388. [2024-11-22 04:05:15,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6388 states, 5303 states have (on average 1.2617386385065057) internal successors, (6691), 5348 states have internal predecessors, (6691), 563 states have call successors, (563), 443 states have call predecessors, (563), 520 states have return successors, (745), 603 states have call predecessors, (745), 562 states have call successors, (745) [2024-11-22 04:05:15,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6388 states to 6388 states and 7999 transitions. [2024-11-22 04:05:15,121 INFO L78 Accepts]: Start accepts. Automaton has 6388 states and 7999 transitions. Word has length 79 [2024-11-22 04:05:15,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:15,122 INFO L471 AbstractCegarLoop]: Abstraction has 6388 states and 7999 transitions. [2024-11-22 04:05:15,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-22 04:05:15,122 INFO L276 IsEmpty]: Start isEmpty. Operand 6388 states and 7999 transitions. [2024-11-22 04:05:15,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-22 04:05:15,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:15,124 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:15,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-22 04:05:15,124 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:15,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:15,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1216148559, now seen corresponding path program 1 times [2024-11-22 04:05:15,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:15,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317149842] [2024-11-22 04:05:15,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:15,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:15,142 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 04:05:15,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:15,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317149842] [2024-11-22 04:05:15,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317149842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:15,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:15,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:05:15,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428320443] [2024-11-22 04:05:15,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:15,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:15,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:15,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:15,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:15,144 INFO L87 Difference]: Start difference. First operand 6388 states and 7999 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-22 04:05:15,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:15,636 INFO L93 Difference]: Finished difference Result 11105 states and 14150 transitions. [2024-11-22 04:05:15,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:15,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 79 [2024-11-22 04:05:15,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:15,654 INFO L225 Difference]: With dead ends: 11105 [2024-11-22 04:05:15,654 INFO L226 Difference]: Without dead ends: 8070 [2024-11-22 04:05:15,659 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 04:05:15,659 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 317 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 544 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 04:05:15,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 544 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:15,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8070 states. [2024-11-22 04:05:16,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8070 to 8056. [2024-11-22 04:05:16,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8056 states, 6776 states have (on average 1.2626918536009446) internal successors, (8556), 6837 states have internal predecessors, (8556), 675 states have call successors, (675), 523 states have call predecessors, (675), 603 states have return successors, (864), 702 states have call predecessors, (864), 674 states have call successors, (864) [2024-11-22 04:05:16,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8056 states to 8056 states and 10095 transitions. [2024-11-22 04:05:16,177 INFO L78 Accepts]: Start accepts. Automaton has 8056 states and 10095 transitions. Word has length 79 [2024-11-22 04:05:16,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:16,178 INFO L471 AbstractCegarLoop]: Abstraction has 8056 states and 10095 transitions. [2024-11-22 04:05:16,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-22 04:05:16,178 INFO L276 IsEmpty]: Start isEmpty. Operand 8056 states and 10095 transitions. [2024-11-22 04:05:16,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-22 04:05:16,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:16,180 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 04:05:16,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-22 04:05:16,180 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:16,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:16,180 INFO L85 PathProgramCache]: Analyzing trace with hash -484741378, now seen corresponding path program 1 times [2024-11-22 04:05:16,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:16,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194336076] [2024-11-22 04:05:16,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:16,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:16,229 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 04:05:16,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:16,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194336076] [2024-11-22 04:05:16,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194336076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:16,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:16,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 04:05:16,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855026331] [2024-11-22 04:05:16,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:16,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:05:16,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:16,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:05:16,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:05:16,232 INFO L87 Difference]: Start difference. First operand 8056 states and 10095 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 04:05:17,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:17,511 INFO L93 Difference]: Finished difference Result 14908 states and 18492 transitions. [2024-11-22 04:05:17,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 04:05:17,512 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 04:05:17,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:17,539 INFO L225 Difference]: With dead ends: 14908 [2024-11-22 04:05:17,539 INFO L226 Difference]: Without dead ends: 10285 [2024-11-22 04:05:17,547 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 04:05:17,547 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 581 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:17,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 1126 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:05:17,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10285 states. [2024-11-22 04:05:18,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10285 to 10028. [2024-11-22 04:05:18,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10028 states, 8296 states have (on average 1.2475891996142718) internal successors, (10350), 8393 states have internal predecessors, (10350), 884 states have call successors, (884), 705 states have call predecessors, (884), 846 states have return successors, (1220), 936 states have call predecessors, (1220), 883 states have call successors, (1220) [2024-11-22 04:05:18,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10028 states to 10028 states and 12454 transitions. [2024-11-22 04:05:18,304 INFO L78 Accepts]: Start accepts. Automaton has 10028 states and 12454 transitions. Word has length 84 [2024-11-22 04:05:18,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:18,305 INFO L471 AbstractCegarLoop]: Abstraction has 10028 states and 12454 transitions. [2024-11-22 04:05:18,305 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 04:05:18,305 INFO L276 IsEmpty]: Start isEmpty. Operand 10028 states and 12454 transitions. [2024-11-22 04:05:18,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 04:05:18,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:18,307 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 04:05:18,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-22 04:05:18,308 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:18,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:18,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1046063412, now seen corresponding path program 1 times [2024-11-22 04:05:18,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:18,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594736642] [2024-11-22 04:05:18,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:18,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:18,369 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 04:05:18,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:18,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594736642] [2024-11-22 04:05:18,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594736642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:18,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:18,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 04:05:18,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71580143] [2024-11-22 04:05:18,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:18,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 04:05:18,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:18,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 04:05:18,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:05:18,371 INFO L87 Difference]: Start difference. First operand 10028 states and 12454 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 04:05:19,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:19,478 INFO L93 Difference]: Finished difference Result 14052 states and 17337 transitions. [2024-11-22 04:05:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 04:05:19,478 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 04:05:19,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:19,502 INFO L225 Difference]: With dead ends: 14052 [2024-11-22 04:05:19,502 INFO L226 Difference]: Without dead ends: 9408 [2024-11-22 04:05:19,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-22 04:05:19,512 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 1113 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:19,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 1210 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:05:19,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9408 states. [2024-11-22 04:05:20,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9408 to 9127. [2024-11-22 04:05:20,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9127 states, 7601 states have (on average 1.2456255755821601) internal successors, (9468), 7681 states have internal predecessors, (9468), 788 states have call successors, (788), 620 states have call predecessors, (788), 736 states have return successors, (1008), 832 states have call predecessors, (1008), 787 states have call successors, (1008) [2024-11-22 04:05:20,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9127 states to 9127 states and 11264 transitions. [2024-11-22 04:05:20,534 INFO L78 Accepts]: Start accepts. Automaton has 9127 states and 11264 transitions. Word has length 93 [2024-11-22 04:05:20,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:20,535 INFO L471 AbstractCegarLoop]: Abstraction has 9127 states and 11264 transitions. [2024-11-22 04:05:20,535 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 04:05:20,535 INFO L276 IsEmpty]: Start isEmpty. Operand 9127 states and 11264 transitions. [2024-11-22 04:05:20,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 04:05:20,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:20,543 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, 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 04:05:20,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-22 04:05:20,543 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:20,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:20,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1180889490, now seen corresponding path program 1 times [2024-11-22 04:05:20,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:20,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535807912] [2024-11-22 04:05:20,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:20,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:20,647 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-22 04:05:20,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:20,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535807912] [2024-11-22 04:05:20,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535807912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:20,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:20,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:05:20,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690061869] [2024-11-22 04:05:20,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:20,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:05:20,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:20,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:05:20,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:05:20,649 INFO L87 Difference]: Start difference. First operand 9127 states and 11264 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 04:05:21,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:21,702 INFO L93 Difference]: Finished difference Result 19042 states and 23946 transitions. [2024-11-22 04:05:21,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:05:21,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 129 [2024-11-22 04:05:21,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:21,743 INFO L225 Difference]: With dead ends: 19042 [2024-11-22 04:05:21,743 INFO L226 Difference]: Without dead ends: 14340 [2024-11-22 04:05:21,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:05:21,756 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 455 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:21,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 643 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:05:21,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14340 states. [2024-11-22 04:05:22,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14340 to 14298. [2024-11-22 04:05:22,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14298 states, 12182 states have (on average 1.2469216877360039) internal successors, (15190), 12315 states have internal predecessors, (15190), 1087 states have call successors, (1087), 840 states have call predecessors, (1087), 1027 states have return successors, (1528), 1150 states have call predecessors, (1528), 1086 states have call successors, (1528) [2024-11-22 04:05:22,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14298 states to 14298 states and 17805 transitions. [2024-11-22 04:05:22,720 INFO L78 Accepts]: Start accepts. Automaton has 14298 states and 17805 transitions. Word has length 129 [2024-11-22 04:05:22,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:22,720 INFO L471 AbstractCegarLoop]: Abstraction has 14298 states and 17805 transitions. [2024-11-22 04:05:22,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 04:05:22,720 INFO L276 IsEmpty]: Start isEmpty. Operand 14298 states and 17805 transitions. [2024-11-22 04:05:22,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 04:05:22,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:22,726 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, 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 04:05:22,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-22 04:05:22,727 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:22,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:22,727 INFO L85 PathProgramCache]: Analyzing trace with hash 88254288, now seen corresponding path program 1 times [2024-11-22 04:05:22,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:22,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167256735] [2024-11-22 04:05:22,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:22,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:22,748 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-22 04:05:22,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:22,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167256735] [2024-11-22 04:05:22,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167256735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:22,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:22,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:05:22,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357844541] [2024-11-22 04:05:22,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:22,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:22,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:22,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:22,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:22,750 INFO L87 Difference]: Start difference. First operand 14298 states and 17805 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:05:23,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:23,532 INFO L93 Difference]: Finished difference Result 21966 states and 27519 transitions. [2024-11-22 04:05:23,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:23,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 129 [2024-11-22 04:05:23,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:23,564 INFO L225 Difference]: With dead ends: 21966 [2024-11-22 04:05:23,564 INFO L226 Difference]: Without dead ends: 12093 [2024-11-22 04:05:23,577 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 04:05:23,577 INFO L432 NwaCegarLoop]: 348 mSDtfsCounter, 214 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 477 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 04:05:23,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 477 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:23,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12093 states. [2024-11-22 04:05:24,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12093 to 12093. [2024-11-22 04:05:24,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12093 states, 10242 states have (on average 1.2439953134153485) internal successors, (12741), 10364 states have internal predecessors, (12741), 936 states have call successors, (936), 730 states have call predecessors, (936), 913 states have return successors, (1320), 1005 states have call predecessors, (1320), 935 states have call successors, (1320) [2024-11-22 04:05:24,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12093 states to 12093 states and 14997 transitions. [2024-11-22 04:05:24,359 INFO L78 Accepts]: Start accepts. Automaton has 12093 states and 14997 transitions. Word has length 129 [2024-11-22 04:05:24,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:24,359 INFO L471 AbstractCegarLoop]: Abstraction has 12093 states and 14997 transitions. [2024-11-22 04:05:24,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:05:24,360 INFO L276 IsEmpty]: Start isEmpty. Operand 12093 states and 14997 transitions. [2024-11-22 04:05:24,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-22 04:05:24,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:24,365 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, 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 04:05:24,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-22 04:05:24,365 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:24,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:24,366 INFO L85 PathProgramCache]: Analyzing trace with hash -489510537, now seen corresponding path program 1 times [2024-11-22 04:05:24,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:24,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321467889] [2024-11-22 04:05:24,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:24,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:24,426 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-22 04:05:24,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:24,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321467889] [2024-11-22 04:05:24,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321467889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:24,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:24,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:05:24,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052099479] [2024-11-22 04:05:24,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:24,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:05:24,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:24,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:05:24,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:05:24,429 INFO L87 Difference]: Start difference. First operand 12093 states and 14997 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 04:05:25,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:25,781 INFO L93 Difference]: Finished difference Result 26986 states and 33861 transitions. [2024-11-22 04:05:25,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:05:25,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 131 [2024-11-22 04:05:25,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:25,830 INFO L225 Difference]: With dead ends: 26986 [2024-11-22 04:05:25,830 INFO L226 Difference]: Without dead ends: 19318 [2024-11-22 04:05:25,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:05:25,849 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 433 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:25,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 678 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:05:25,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19318 states. [2024-11-22 04:05:27,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19318 to 18702. [2024-11-22 04:05:27,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18702 states, 15997 states have (on average 1.244733387510158) internal successors, (19912), 16250 states have internal predecessors, (19912), 1325 states have call successors, (1325), 990 states have call predecessors, (1325), 1378 states have return successors, (2187), 1469 states have call predecessors, (2187), 1324 states have call successors, (2187) [2024-11-22 04:05:27,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18702 states to 18702 states and 23424 transitions. [2024-11-22 04:05:27,104 INFO L78 Accepts]: Start accepts. Automaton has 18702 states and 23424 transitions. Word has length 131 [2024-11-22 04:05:27,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:27,105 INFO L471 AbstractCegarLoop]: Abstraction has 18702 states and 23424 transitions. [2024-11-22 04:05:27,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 04:05:27,105 INFO L276 IsEmpty]: Start isEmpty. Operand 18702 states and 23424 transitions. [2024-11-22 04:05:27,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-22 04:05:27,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:27,112 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, 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 04:05:27,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-22 04:05:27,113 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:27,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:27,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1463431, now seen corresponding path program 1 times [2024-11-22 04:05:27,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:27,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562493424] [2024-11-22 04:05:27,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:27,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:27,135 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-22 04:05:27,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:27,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562493424] [2024-11-22 04:05:27,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562493424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:27,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:27,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:05:27,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687593200] [2024-11-22 04:05:27,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:27,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:27,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:27,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:27,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:27,138 INFO L87 Difference]: Start difference. First operand 18702 states and 23424 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:05:28,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:28,586 INFO L93 Difference]: Finished difference Result 32975 states and 41557 transitions. [2024-11-22 04:05:28,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:28,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 131 [2024-11-22 04:05:28,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:28,640 INFO L225 Difference]: With dead ends: 32975 [2024-11-22 04:05:28,641 INFO L226 Difference]: Without dead ends: 18697 [2024-11-22 04:05:28,665 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 04:05:28,666 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 212 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 476 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 04:05:28,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 476 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:28,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18697 states. [2024-11-22 04:05:29,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18697 to 18697. [2024-11-22 04:05:29,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18697 states, 15995 states have (on average 1.2446389496717725) internal successors, (19908), 16247 states have internal predecessors, (19908), 1322 states have call successors, (1322), 990 states have call predecessors, (1322), 1378 states have return successors, (2183), 1466 states have call predecessors, (2183), 1321 states have call successors, (2183) [2024-11-22 04:05:29,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18697 states to 18697 states and 23413 transitions. [2024-11-22 04:05:29,974 INFO L78 Accepts]: Start accepts. Automaton has 18697 states and 23413 transitions. Word has length 131 [2024-11-22 04:05:29,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:29,974 INFO L471 AbstractCegarLoop]: Abstraction has 18697 states and 23413 transitions. [2024-11-22 04:05:29,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:05:29,975 INFO L276 IsEmpty]: Start isEmpty. Operand 18697 states and 23413 transitions. [2024-11-22 04:05:29,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 04:05:29,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:29,983 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, 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] [2024-11-22 04:05:29,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-22 04:05:29,983 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:29,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:29,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1288163950, now seen corresponding path program 1 times [2024-11-22 04:05:29,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:29,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992136741] [2024-11-22 04:05:29,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:29,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:30,047 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-22 04:05:30,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:30,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992136741] [2024-11-22 04:05:30,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992136741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:30,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:30,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 04:05:30,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334425044] [2024-11-22 04:05:30,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:30,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 04:05:30,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:30,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 04:05:30,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 04:05:30,049 INFO L87 Difference]: Start difference. First operand 18697 states and 23413 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 04:05:32,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:32,015 INFO L93 Difference]: Finished difference Result 44965 states and 56916 transitions. [2024-11-22 04:05:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 04:05:32,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 133 [2024-11-22 04:05:32,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:32,100 INFO L225 Difference]: With dead ends: 44965 [2024-11-22 04:05:32,101 INFO L226 Difference]: Without dead ends: 30693 [2024-11-22 04:05:32,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:05:32,127 INFO L432 NwaCegarLoop]: 283 mSDtfsCounter, 423 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:32,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 616 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:05:32,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30693 states. [2024-11-22 04:05:34,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30693 to 30691. [2024-11-22 04:05:34,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30691 states, 26438 states have (on average 1.2476359785157727) internal successors, (32985), 26871 states have internal predecessors, (32985), 2097 states have call successors, (2097), 1510 states have call predecessors, (2097), 2154 states have return successors, (3582), 2317 states have call predecessors, (3582), 2096 states have call successors, (3582) [2024-11-22 04:05:34,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30691 states to 30691 states and 38664 transitions. [2024-11-22 04:05:34,165 INFO L78 Accepts]: Start accepts. Automaton has 30691 states and 38664 transitions. Word has length 133 [2024-11-22 04:05:34,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:34,165 INFO L471 AbstractCegarLoop]: Abstraction has 30691 states and 38664 transitions. [2024-11-22 04:05:34,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-22 04:05:34,165 INFO L276 IsEmpty]: Start isEmpty. Operand 30691 states and 38664 transitions. [2024-11-22 04:05:34,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 04:05:34,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:34,176 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, 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] [2024-11-22 04:05:34,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-22 04:05:34,177 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:34,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:34,177 INFO L85 PathProgramCache]: Analyzing trace with hash 956394448, now seen corresponding path program 1 times [2024-11-22 04:05:34,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:34,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462863357] [2024-11-22 04:05:34,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:34,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:34,199 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-22 04:05:34,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:34,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462863357] [2024-11-22 04:05:34,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462863357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:34,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:34,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:05:34,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974737951] [2024-11-22 04:05:34,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:34,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:34,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:34,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:34,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:34,201 INFO L87 Difference]: Start difference. First operand 30691 states and 38664 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:05:36,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:36,246 INFO L93 Difference]: Finished difference Result 51152 states and 64717 transitions. [2024-11-22 04:05:36,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:36,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 133 [2024-11-22 04:05:36,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:36,314 INFO L225 Difference]: With dead ends: 51152 [2024-11-22 04:05:36,314 INFO L226 Difference]: Without dead ends: 24886 [2024-11-22 04:05:36,352 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 04:05:36,353 INFO L432 NwaCegarLoop]: 346 mSDtfsCounter, 210 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 475 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 04:05:36,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 475 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:36,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24886 states. [2024-11-22 04:05:38,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24886 to 24886. [2024-11-22 04:05:38,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24886 states, 21385 states have (on average 1.2473228898760813) internal successors, (26674), 21739 states have internal predecessors, (26674), 1708 states have call successors, (1708), 1250 states have call predecessors, (1708), 1791 states have return successors, (2952), 1903 states have call predecessors, (2952), 1707 states have call successors, (2952) [2024-11-22 04:05:38,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24886 states to 24886 states and 31334 transitions. [2024-11-22 04:05:38,111 INFO L78 Accepts]: Start accepts. Automaton has 24886 states and 31334 transitions. Word has length 133 [2024-11-22 04:05:38,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:38,111 INFO L471 AbstractCegarLoop]: Abstraction has 24886 states and 31334 transitions. [2024-11-22 04:05:38,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 04:05:38,112 INFO L276 IsEmpty]: Start isEmpty. Operand 24886 states and 31334 transitions. [2024-11-22 04:05:38,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 04:05:38,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:38,119 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, 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] [2024-11-22 04:05:38,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-22 04:05:38,120 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:38,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:38,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1579032905, now seen corresponding path program 1 times [2024-11-22 04:05:38,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:38,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070386208] [2024-11-22 04:05:38,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:38,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:38,177 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 04:05:38,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:38,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070386208] [2024-11-22 04:05:38,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070386208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:38,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:38,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 04:05:38,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937971799] [2024-11-22 04:05:38,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:38,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 04:05:38,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:38,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 04:05:38,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 04:05:38,179 INFO L87 Difference]: Start difference. First operand 24886 states and 31334 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:05:41,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:41,209 INFO L93 Difference]: Finished difference Result 61560 states and 78645 transitions. [2024-11-22 04:05:41,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 04:05:41,210 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 135 [2024-11-22 04:05:41,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:41,318 INFO L225 Difference]: With dead ends: 61560 [2024-11-22 04:05:41,318 INFO L226 Difference]: Without dead ends: 33503 [2024-11-22 04:05:41,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-11-22 04:05:41,366 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 1775 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1787 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:41,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1787 Valid, 1417 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 04:05:41,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33503 states. [2024-11-22 04:05:43,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33503 to 32969. [2024-11-22 04:05:44,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32969 states, 28632 states have (on average 1.2345627270187203) internal successors, (35348), 29088 states have internal predecessors, (35348), 2050 states have call successors, (2050), 1550 states have call predecessors, (2050), 2285 states have return successors, (3574), 2337 states have call predecessors, (3574), 2049 states have call successors, (3574) [2024-11-22 04:05:44,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32969 states to 32969 states and 40972 transitions. [2024-11-22 04:05:44,078 INFO L78 Accepts]: Start accepts. Automaton has 32969 states and 40972 transitions. Word has length 135 [2024-11-22 04:05:44,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:44,079 INFO L471 AbstractCegarLoop]: Abstraction has 32969 states and 40972 transitions. [2024-11-22 04:05:44,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-22 04:05:44,079 INFO L276 IsEmpty]: Start isEmpty. Operand 32969 states and 40972 transitions. [2024-11-22 04:05:44,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 04:05:44,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:44,085 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 04:05:44,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-22 04:05:44,086 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:44,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:44,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1618426608, now seen corresponding path program 1 times [2024-11-22 04:05:44,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:44,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327052035] [2024-11-22 04:05:44,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:44,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:44,146 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 04:05:44,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:44,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327052035] [2024-11-22 04:05:44,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327052035] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:44,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055443204] [2024-11-22 04:05:44,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:44,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:44,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:44,151 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 04:05:44,152 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 04:05:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:44,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 04:05:44,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:44,273 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 04:05:44,274 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:05:44,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055443204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:44,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:05:44,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-22 04:05:44,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430701457] [2024-11-22 04:05:44,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:44,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 04:05:44,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:44,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 04:05:44,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-22 04:05:44,276 INFO L87 Difference]: Start difference. First operand 32969 states and 40972 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 04:05:46,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:46,028 INFO L93 Difference]: Finished difference Result 35018 states and 43425 transitions. [2024-11-22 04:05:46,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:05:46,029 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 04:05:46,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:46,131 INFO L225 Difference]: With dead ends: 35018 [2024-11-22 04:05:46,132 INFO L226 Difference]: Without dead ends: 30633 [2024-11-22 04:05:46,148 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 04:05:46,149 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 0 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1706 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 04:05:46,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1706 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:46,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30633 states. [2024-11-22 04:05:48,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30633 to 30633. [2024-11-22 04:05:48,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30633 states, 26875 states have (on average 1.2357953488372093) internal successors, (33212), 27286 states have internal predecessors, (33212), 1766 states have call successors, (1766), 1308 states have call predecessors, (1766), 1990 states have return successors, (3195), 2039 states have call predecessors, (3195), 1765 states have call successors, (3195) [2024-11-22 04:05:48,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30633 states to 30633 states and 38173 transitions. [2024-11-22 04:05:48,166 INFO L78 Accepts]: Start accepts. Automaton has 30633 states and 38173 transitions. Word has length 145 [2024-11-22 04:05:48,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:48,167 INFO L471 AbstractCegarLoop]: Abstraction has 30633 states and 38173 transitions. [2024-11-22 04:05:48,167 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 04:05:48,167 INFO L276 IsEmpty]: Start isEmpty. Operand 30633 states and 38173 transitions. [2024-11-22 04:05:48,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 04:05:48,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:48,173 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 04:05:48,180 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 04:05:48,373 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,SelfDestructingSolverStorable41 [2024-11-22 04:05:48,374 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:48,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:48,374 INFO L85 PathProgramCache]: Analyzing trace with hash 512548488, now seen corresponding path program 1 times [2024-11-22 04:05:48,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:48,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537983187] [2024-11-22 04:05:48,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:48,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:48,404 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-22 04:05:48,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:48,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537983187] [2024-11-22 04:05:48,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537983187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:48,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:48,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 04:05:48,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74422931] [2024-11-22 04:05:48,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:48,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:05:48,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:48,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:05:48,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 04:05:48,409 INFO L87 Difference]: Start difference. First operand 30633 states and 38173 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 04:05:50,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:50,031 INFO L93 Difference]: Finished difference Result 30636 states and 38175 transitions. [2024-11-22 04:05:50,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:05:50,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 147 [2024-11-22 04:05:50,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:50,101 INFO L225 Difference]: With dead ends: 30636 [2024-11-22 04:05:50,101 INFO L226 Difference]: Without dead ends: 30189 [2024-11-22 04:05:50,108 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 04:05:50,109 INFO L432 NwaCegarLoop]: 344 mSDtfsCounter, 123 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 561 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 04:05:50,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 561 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:05:50,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30189 states. [2024-11-22 04:05:51,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30189 to 30189. [2024-11-22 04:05:51,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30189 states, 26527 states have (on average 1.2366268330380368) internal successors, (32804), 26935 states have internal predecessors, (32804), 1720 states have call successors, (1720), 1268 states have call predecessors, (1720), 1940 states have return successors, (3132), 1986 states have call predecessors, (3132), 1719 states have call successors, (3132) [2024-11-22 04:05:51,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30189 states to 30189 states and 37656 transitions. [2024-11-22 04:05:51,883 INFO L78 Accepts]: Start accepts. Automaton has 30189 states and 37656 transitions. Word has length 147 [2024-11-22 04:05:51,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:51,884 INFO L471 AbstractCegarLoop]: Abstraction has 30189 states and 37656 transitions. [2024-11-22 04:05:51,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-22 04:05:51,884 INFO L276 IsEmpty]: Start isEmpty. Operand 30189 states and 37656 transitions. [2024-11-22 04:05:51,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-22 04:05:51,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:51,891 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 04:05:51,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-22 04:05:51,891 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:51,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:51,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1595239606, now seen corresponding path program 1 times [2024-11-22 04:05:51,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:51,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757947389] [2024-11-22 04:05:51,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:51,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:51,937 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 04:05:51,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:51,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757947389] [2024-11-22 04:05:51,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757947389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:05:51,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 04:05:51,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 04:05:51,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361767655] [2024-11-22 04:05:51,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:05:51,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:05:51,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:51,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:05:51,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 04:05:51,939 INFO L87 Difference]: Start difference. First operand 30189 states and 37656 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 04:05:54,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:54,366 INFO L93 Difference]: Finished difference Result 31616 states and 39400 transitions. [2024-11-22 04:05:54,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 04:05:54,366 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 04:05:54,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:54,468 INFO L225 Difference]: With dead ends: 31616 [2024-11-22 04:05:54,469 INFO L226 Difference]: Without dead ends: 30236 [2024-11-22 04:05:54,488 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 04:05:54,488 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 176 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:54,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 781 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:05:54,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30236 states. [2024-11-22 04:05:56,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30236 to 30155. [2024-11-22 04:05:56,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30155 states, 26509 states have (on average 1.2364479987928627) internal successors, (32777), 26919 states have internal predecessors, (32777), 1714 states have call successors, (1714), 1266 states have call predecessors, (1714), 1930 states have return successors, (3120), 1970 states have call predecessors, (3120), 1713 states have call successors, (3120) [2024-11-22 04:05:56,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30155 states to 30155 states and 37611 transitions. [2024-11-22 04:05:56,449 INFO L78 Accepts]: Start accepts. Automaton has 30155 states and 37611 transitions. Word has length 159 [2024-11-22 04:05:56,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:05:56,449 INFO L471 AbstractCegarLoop]: Abstraction has 30155 states and 37611 transitions. [2024-11-22 04:05:56,449 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 04:05:56,449 INFO L276 IsEmpty]: Start isEmpty. Operand 30155 states and 37611 transitions. [2024-11-22 04:05:56,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 04:05:56,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:05:56,458 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:05:56,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-22 04:05:56,458 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:05:56,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:05:56,459 INFO L85 PathProgramCache]: Analyzing trace with hash -519563973, now seen corresponding path program 1 times [2024-11-22 04:05:56,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:05:56,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928261046] [2024-11-22 04:05:56,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:56,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:05:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:56,584 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-22 04:05:56,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:05:56,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928261046] [2024-11-22 04:05:56,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928261046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:05:56,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659589020] [2024-11-22 04:05:56,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:05:56,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:05:56,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:05:56,588 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 04:05:56,590 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 04:05:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:05:56,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 04:05:56,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:05:56,805 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-22 04:05:56,805 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 04:05:57,010 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-22 04:05:57,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659589020] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 04:05:57,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 04:05:57,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2024-11-22 04:05:57,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998054656] [2024-11-22 04:05:57,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 04:05:57,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 04:05:57,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:05:57,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 04:05:57,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-22 04:05:57,012 INFO L87 Difference]: Start difference. First operand 30155 states and 37611 transitions. Second operand has 13 states, 13 states have (on average 18.76923076923077) internal successors, (244), 13 states have internal predecessors, (244), 6 states have call successors, (36), 7 states have call predecessors, (36), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2024-11-22 04:05:59,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:05:59,394 INFO L93 Difference]: Finished difference Result 32290 states and 40262 transitions. [2024-11-22 04:05:59,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-22 04:05:59,394 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 18.76923076923077) internal successors, (244), 13 states have internal predecessors, (244), 6 states have call successors, (36), 7 states have call predecessors, (36), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) Word has length 162 [2024-11-22 04:05:59,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:05:59,486 INFO L225 Difference]: With dead ends: 32290 [2024-11-22 04:05:59,487 INFO L226 Difference]: Without dead ends: 30797 [2024-11-22 04:05:59,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 332 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2024-11-22 04:05:59,501 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 798 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 04:05:59,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 1395 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 04:05:59,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30797 states. [2024-11-22 04:06:01,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30797 to 30610. [2024-11-22 04:06:01,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30610 states, 26844 states have (on average 1.234577559231113) internal successors, (33141), 27262 states have internal predecessors, (33141), 1772 states have call successors, (1772), 1320 states have call predecessors, (1772), 1992 states have return successors, (3238), 2028 states have call predecessors, (3238), 1771 states have call successors, (3238) [2024-11-22 04:06:01,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30610 states to 30610 states and 38151 transitions. [2024-11-22 04:06:01,378 INFO L78 Accepts]: Start accepts. Automaton has 30610 states and 38151 transitions. Word has length 162 [2024-11-22 04:06:01,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:01,379 INFO L471 AbstractCegarLoop]: Abstraction has 30610 states and 38151 transitions. [2024-11-22 04:06:01,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.76923076923077) internal successors, (244), 13 states have internal predecessors, (244), 6 states have call successors, (36), 7 states have call predecessors, (36), 10 states have return successors, (35), 6 states have call predecessors, (35), 6 states have call successors, (35) [2024-11-22 04:06:01,379 INFO L276 IsEmpty]: Start isEmpty. Operand 30610 states and 38151 transitions. [2024-11-22 04:06:01,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-22 04:06:01,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:01,389 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 04:06:01,396 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 04:06:01,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:06:01,590 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:01,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:01,591 INFO L85 PathProgramCache]: Analyzing trace with hash 187165925, now seen corresponding path program 1 times [2024-11-22 04:06:01,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:01,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678869322] [2024-11-22 04:06:01,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:01,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:01,642 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-22 04:06:01,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:01,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678869322] [2024-11-22 04:06:01,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678869322] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:06:01,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884569695] [2024-11-22 04:06:01,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:01,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:06:01,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:06:01,644 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 04:06:01,645 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 04:06:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:01,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 04:06:01,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:06:01,933 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-22 04:06:01,934 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:06:01,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884569695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:01,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:06:01,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 04:06:01,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359482218] [2024-11-22 04:06:01,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:01,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 04:06:01,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:01,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 04:06:01,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 04:06:01,935 INFO L87 Difference]: Start difference. First operand 30610 states and 38151 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 04:06:03,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:03,501 INFO L93 Difference]: Finished difference Result 32419 states and 40333 transitions. [2024-11-22 04:06:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 04:06:03,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 179 [2024-11-22 04:06:03,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:03,589 INFO L225 Difference]: With dead ends: 32419 [2024-11-22 04:06:03,589 INFO L226 Difference]: Without dead ends: 30624 [2024-11-22 04:06:03,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 179 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 04:06:03,608 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 33 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:03,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 702 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 04:06:03,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30624 states. [2024-11-22 04:06:05,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30624 to 30610. [2024-11-22 04:06:05,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30610 states, 26844 states have (on average 1.2342795410520042) internal successors, (33133), 27262 states have internal predecessors, (33133), 1772 states have call successors, (1772), 1320 states have call predecessors, (1772), 1992 states have return successors, (3238), 2028 states have call predecessors, (3238), 1771 states have call successors, (3238) [2024-11-22 04:06:05,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30610 states to 30610 states and 38143 transitions. [2024-11-22 04:06:05,655 INFO L78 Accepts]: Start accepts. Automaton has 30610 states and 38143 transitions. Word has length 179 [2024-11-22 04:06:05,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 04:06:05,655 INFO L471 AbstractCegarLoop]: Abstraction has 30610 states and 38143 transitions. [2024-11-22 04:06:05,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 04:06:05,655 INFO L276 IsEmpty]: Start isEmpty. Operand 30610 states and 38143 transitions. [2024-11-22 04:06:05,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-22 04:06:05,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 04:06:05,667 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:06:05,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 04:06:05,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:06:05,868 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 04:06:05,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 04:06:05,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1852044902, now seen corresponding path program 1 times [2024-11-22 04:06:05,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 04:06:05,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000327796] [2024-11-22 04:06:05,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:05,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 04:06:05,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:05,925 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 04:06:05,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 04:06:05,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000327796] [2024-11-22 04:06:05,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000327796] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 04:06:05,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884480527] [2024-11-22 04:06:05,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 04:06:05,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 04:06:05,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 04:06:05,928 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 04:06:05,929 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 04:06:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 04:06:06,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 04:06:06,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 04:06:06,046 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 04:06:06,046 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 04:06:06,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884480527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 04:06:06,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 04:06:06,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-22 04:06:06,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910993597] [2024-11-22 04:06:06,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 04:06:06,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 04:06:06,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 04:06:06,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 04:06:06,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 04:06:06,048 INFO L87 Difference]: Start difference. First operand 30610 states and 38143 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 04:06:08,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 04:06:08,169 INFO L93 Difference]: Finished difference Result 32444 states and 40349 transitions. [2024-11-22 04:06:08,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 04:06:08,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 179 [2024-11-22 04:06:08,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 04:06:08,277 INFO L225 Difference]: With dead ends: 32444 [2024-11-22 04:06:08,277 INFO L226 Difference]: Without dead ends: 30268 [2024-11-22 04:06:08,292 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 04:06:08,293 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 434 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 04:06:08,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 555 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 04:06:08,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30268 states.