./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-2.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 bc7a523a551103aeb2dd7ea3e708e9b42a327a50ce055e0932147e1f855a3338 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:50:34,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:50:34,847 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:50:34,850 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:50:34,851 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:50:34,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:50:34,867 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:50:34,868 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:50:34,868 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:50:34,871 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:50:34,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:50:34,872 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:50:34,872 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:50:34,872 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:50:34,872 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:50:34,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:50:34,873 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:50:34,873 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:50:34,873 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:50:34,873 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:50:34,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:50:34,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:50:34,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:50:34,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:50:34,876 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:50:34,876 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:50:34,876 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:50:34,876 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:50:34,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:50:34,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:50:34,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:50:34,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:50:34,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:50:34,877 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:50:34,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:50:34,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:50:34,877 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:50:34,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:50:34,878 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:50:34,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:50:34,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:50:34,879 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:50:34,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc7a523a551103aeb2dd7ea3e708e9b42a327a50ce055e0932147e1f855a3338 [2024-11-18 14:50:35,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:50:35,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:50:35,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:50:35,094 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:50:35,095 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:50:35,095 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-2.c [2024-11-18 14:50:36,308 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:50:36,562 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:50:36,563 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-2.c [2024-11-18 14:50:36,580 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fc8b4cb7/06281349b56549258aed00a0d8dff825/FLAG3217b8728 [2024-11-18 14:50:36,860 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fc8b4cb7/06281349b56549258aed00a0d8dff825 [2024-11-18 14:50:36,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:50:36,863 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:50:36,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:50:36,865 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:50:36,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:50:36,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:50:36" (1/1) ... [2024-11-18 14:50:36,870 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465b5007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:36, skipping insertion in model container [2024-11-18 14:50:36,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:50:36" (1/1) ... [2024-11-18 14:50:36,915 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:50:37,074 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/seq-mthreaded/rekh_aso.1.M4-2.c[1719,1732] [2024-11-18 14:50:37,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:50:37,491 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:50:37,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.bug1.i","-S") [43] [2024-11-18 14:50:37,506 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/seq-mthreaded/rekh_aso.1.M4-2.c[1719,1732] [2024-11-18 14:50:37,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:50:37,684 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:50:37,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:37 WrapperNode [2024-11-18 14:50:37,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:50:37,685 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:50:37,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:50:37,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:50:37,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:37" (1/1) ... [2024-11-18 14:50:37,740 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:37" (1/1) ... [2024-11-18 14:50:37,938 INFO L138 Inliner]: procedures = 58, calls = 3478, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 7560 [2024-11-18 14:50:37,939 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:50:37,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:50:37,939 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:50:37,939 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:50:37,947 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:37" (1/1) ... [2024-11-18 14:50:37,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:37" (1/1) ... [2024-11-18 14:50:37,984 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:37" (1/1) ... [2024-11-18 14:50:38,055 INFO L175 MemorySlicer]: Split 2489 memory accesses to 19 slices as follows [2, 8, 7, 319, 355, 113, 113, 186, 203, 186, 203, 186, 203, 186, 203, 8, 2, 2, 4]. 14 percent of accesses are in the largest equivalence class. The 328 initializations are split as follows [2, 0, 2, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 0, 0, 0, 0]. The 349 writes are split as follows [0, 4, 3, 27, 27, 27, 27, 31, 26, 31, 26, 31, 26, 31, 26, 4, 1, 1, 0]. [2024-11-18 14:50:38,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:37" (1/1) ... [2024-11-18 14:50:38,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:37" (1/1) ... [2024-11-18 14:50:38,213 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:37" (1/1) ... [2024-11-18 14:50:38,226 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:37" (1/1) ... [2024-11-18 14:50:38,247 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:37" (1/1) ... [2024-11-18 14:50:38,266 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:37" (1/1) ... [2024-11-18 14:50:38,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:50:38,302 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:50:38,302 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:50:38,302 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:50:38,303 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:37" (1/1) ... [2024-11-18 14:50:38,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:50:38,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:50:38,331 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) [2024-11-18 14:50:38,333 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 [2024-11-18 14:50:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:50:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2024-11-18 14:50:38,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2024-11-18 14:50:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2024-11-18 14:50:38,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2024-11-18 14:50:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2024-11-18 14:50:38,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2024-11-18 14:50:38,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-18 14:50:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2024-11-18 14:50:38,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2024-11-18 14:50:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2024-11-18 14:50:38,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2024-11-18 14:50:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2024-11-18 14:50:38,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2024-11-18 14:50:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-18 14:50:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-18 14:50:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-18 14:50:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-18 14:50:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-18 14:50:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-18 14:50:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-18 14:50:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-18 14:50:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-18 14:50:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-18 14:50:38,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-18 14:50:38,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-18 14:50:38,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-18 14:50:38,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-18 14:50:38,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-18 14:50:38,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-18 14:50:38,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-18 14:50:38,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-18 14:50:38,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-18 14:50:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2024-11-18 14:50:38,413 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2024-11-18 14:50:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2024-11-18 14:50:38,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2024-11-18 14:50:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2024-11-18 14:50:38,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2024-11-18 14:50:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-18 14:50:38,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-18 14:50:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-18 14:50:38,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-18 14:50:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2024-11-18 14:50:38,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2024-11-18 14:50:38,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 14:50:38,414 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2024-11-18 14:50:38,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2024-11-18 14:50:38,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-18 14:50:38,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-18 14:50:38,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-18 14:50:38,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-18 14:50:38,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-18 14:50:38,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-18 14:50:38,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-18 14:50:38,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-18 14:50:38,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-18 14:50:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-18 14:50:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-18 14:50:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-18 14:50:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-18 14:50:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-18 14:50:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-18 14:50:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-18 14:50:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-18 14:50:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-18 14:50:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-18 14:50:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-18 14:50:38,415 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-18 14:50:38,415 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2024-11-18 14:50:38,415 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2024-11-18 14:50:38,416 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2024-11-18 14:50:38,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2024-11-18 14:50:38,416 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2024-11-18 14:50:38,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2024-11-18 14:50:38,416 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 14:50:38,416 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 14:50:38,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:50:38,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 14:50:38,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 14:50:38,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 14:50:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-18 14:50:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-18 14:50:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-18 14:50:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-18 14:50:38,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-18 14:50:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-18 14:50:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-18 14:50:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-18 14:50:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-18 14:50:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-18 14:50:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-18 14:50:38,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-18 14:50:38,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-18 14:50:38,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-18 14:50:38,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-18 14:50:38,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:50:38,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:50:38,422 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2024-11-18 14:50:38,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2024-11-18 14:50:38,423 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2024-11-18 14:50:38,423 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2024-11-18 14:50:38,423 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2024-11-18 14:50:38,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2024-11-18 14:50:38,423 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2024-11-18 14:50:38,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2024-11-18 14:50:38,812 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:50:38,814 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:50:46,465 INFO L? ?]: Removed 404 outVars from TransFormulas that were not future-live. [2024-11-18 14:50:46,466 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:50:46,513 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:50:46,514 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:50:46,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:50:46 BoogieIcfgContainer [2024-11-18 14:50:46,514 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:50:46,516 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:50:46,516 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:50:46,518 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:50:46,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:50:36" (1/3) ... [2024-11-18 14:50:46,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d86fae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:50:46, skipping insertion in model container [2024-11-18 14:50:46,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:37" (2/3) ... [2024-11-18 14:50:46,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d86fae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:50:46, skipping insertion in model container [2024-11-18 14:50:46,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:50:46" (3/3) ... [2024-11-18 14:50:46,520 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M4-2.c [2024-11-18 14:50:46,533 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:50:46,534 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:50:46,637 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:50:46,641 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;@64c1e4ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:50:46,642 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:50:46,650 INFO L276 IsEmpty]: Start isEmpty. Operand has 2214 states, 1250 states have (on average 1.2184) internal successors, (1523), 1380 states have internal predecessors, (1523), 940 states have call successors, (940), 22 states have call predecessors, (940), 22 states have return successors, (940), 840 states have call predecessors, (940), 940 states have call successors, (940) [2024-11-18 14:50:46,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1339 [2024-11-18 14:50:46,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:46,716 INFO L215 NwaCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:50:46,717 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:46,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:46,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1449000293, now seen corresponding path program 1 times [2024-11-18 14:50:46,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:46,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063076369] [2024-11-18 14:50:46,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:46,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:48,184 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 86528 trivial. 0 not checked. [2024-11-18 14:50:48,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:48,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063076369] [2024-11-18 14:50:48,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063076369] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:50:48,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036847519] [2024-11-18 14:50:48,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:48,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:50:48,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:50:48,188 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) [2024-11-18 14:50:48,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:50:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:49,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 4646 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 14:50:49,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:50:49,705 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 86528 trivial. 0 not checked. [2024-11-18 14:50:49,706 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:50:49,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036847519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:49,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:50:49,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 14:50:49,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446644585] [2024-11-18 14:50:49,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:49,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:50:49,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:49,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:50:49,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:50:49,738 INFO L87 Difference]: Start difference. First operand has 2214 states, 1250 states have (on average 1.2184) internal successors, (1523), 1380 states have internal predecessors, (1523), 940 states have call successors, (940), 22 states have call predecessors, (940), 22 states have return successors, (940), 840 states have call predecessors, (940), 940 states have call successors, (940) Second operand has 2 states, 2 states have (on average 146.0) internal successors, (292), 2 states have internal predecessors, (292), 2 states have call successors, (213), 2 states have call predecessors, (213), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) [2024-11-18 14:50:49,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:49,952 INFO L93 Difference]: Finished difference Result 4423 states and 7720 transitions. [2024-11-18 14:50:49,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:50:49,954 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 146.0) internal successors, (292), 2 states have internal predecessors, (292), 2 states have call successors, (213), 2 states have call predecessors, (213), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) Word has length 1338 [2024-11-18 14:50:49,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:49,988 INFO L225 Difference]: With dead ends: 4423 [2024-11-18 14:50:49,989 INFO L226 Difference]: Without dead ends: 2209 [2024-11-18 14:50:50,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1339 GetRequests, 1339 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:50:50,023 INFO L432 NwaCegarLoop]: 3400 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3400 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:50:50,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3400 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:50:50,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2024-11-18 14:50:50,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 2209. [2024-11-18 14:50:50,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 1246 states have (on average 1.21669341894061) internal successors, (1516), 1376 states have internal predecessors, (1516), 940 states have call successors, (940), 22 states have call predecessors, (940), 22 states have return successors, (939), 839 states have call predecessors, (939), 939 states have call successors, (939) [2024-11-18 14:50:50,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3395 transitions. [2024-11-18 14:50:50,607 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3395 transitions. Word has length 1338 [2024-11-18 14:50:50,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:50:50,609 INFO L471 AbstractCegarLoop]: Abstraction has 2209 states and 3395 transitions. [2024-11-18 14:50:50,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 146.0) internal successors, (292), 2 states have internal predecessors, (292), 2 states have call successors, (213), 2 states have call predecessors, (213), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) [2024-11-18 14:50:50,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3395 transitions. [2024-11-18 14:50:50,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1339 [2024-11-18 14:50:50,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:50,716 INFO L215 NwaCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:50:50,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 14:50:50,916 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,SelfDestructingSolverStorable0 [2024-11-18 14:50:50,917 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:50,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:50,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1452858651, now seen corresponding path program 1 times [2024-11-18 14:50:50,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:50,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215878372] [2024-11-18 14:50:50,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:50,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:52,408 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86944 trivial. 0 not checked. [2024-11-18 14:50:52,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:52,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215878372] [2024-11-18 14:50:52,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215878372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:52,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:52,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:50:52,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577386840] [2024-11-18 14:50:52,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:52,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:50:52,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:52,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:50:52,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:50:52,417 INFO L87 Difference]: Start difference. First operand 2209 states and 3395 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 2 states have call successors, (213), 2 states have call predecessors, (213), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) [2024-11-18 14:50:52,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:52,590 INFO L93 Difference]: Finished difference Result 4413 states and 6811 transitions. [2024-11-18 14:50:52,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:50:52,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 2 states have call successors, (213), 2 states have call predecessors, (213), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) Word has length 1338 [2024-11-18 14:50:52,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:52,615 INFO L225 Difference]: With dead ends: 4413 [2024-11-18 14:50:52,616 INFO L226 Difference]: Without dead ends: 2209 [2024-11-18 14:50:52,638 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 [2024-11-18 14:50:52,639 INFO L432 NwaCegarLoop]: 3393 mSDtfsCounter, 0 mSDsluCounter, 3383 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6776 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:50:52,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6776 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:50:52,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2209 states. [2024-11-18 14:50:52,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2209 to 2209. [2024-11-18 14:50:52,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 1246 states have (on average 1.2158908507223114) internal successors, (1515), 1376 states have internal predecessors, (1515), 940 states have call successors, (940), 22 states have call predecessors, (940), 22 states have return successors, (939), 839 states have call predecessors, (939), 939 states have call successors, (939) [2024-11-18 14:50:52,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3394 transitions. [2024-11-18 14:50:52,991 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3394 transitions. Word has length 1338 [2024-11-18 14:50:52,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:50:52,995 INFO L471 AbstractCegarLoop]: Abstraction has 2209 states and 3394 transitions. [2024-11-18 14:50:52,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 2 states have call successors, (213), 2 states have call predecessors, (213), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) [2024-11-18 14:50:52,995 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3394 transitions. [2024-11-18 14:50:53,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1347 [2024-11-18 14:50:53,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:53,091 INFO L215 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:50:53,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:50:53,091 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:53,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:53,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1620717409, now seen corresponding path program 1 times [2024-11-18 14:50:53,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:53,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853432671] [2024-11-18 14:50:53,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:53,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:56,375 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2024-11-18 14:50:56,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:56,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853432671] [2024-11-18 14:50:56,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853432671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:56,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:56,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:50:56,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565600244] [2024-11-18 14:50:56,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:56,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:50:56,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:56,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:50:56,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:50:56,379 INFO L87 Difference]: Start difference. First operand 2209 states and 3394 transitions. Second operand has 5 states, 4 states have (on average 73.0) internal successors, (292), 5 states have internal predecessors, (292), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) [2024-11-18 14:51:00,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:51:00,428 INFO L93 Difference]: Finished difference Result 5267 states and 8084 transitions. [2024-11-18 14:51:00,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:51:00,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 73.0) internal successors, (292), 5 states have internal predecessors, (292), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) Word has length 1346 [2024-11-18 14:51:00,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:51:00,455 INFO L225 Difference]: With dead ends: 5267 [2024-11-18 14:51:00,455 INFO L226 Difference]: Without dead ends: 3063 [2024-11-18 14:51:00,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:51:00,477 INFO L432 NwaCegarLoop]: 4627 mSDtfsCounter, 4635 mSDsluCounter, 3206 mSDsCounter, 0 mSdLazyCounter, 4064 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4635 SdHoareTripleChecker+Valid, 7833 SdHoareTripleChecker+Invalid, 4092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-18 14:51:00,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4635 Valid, 7833 Invalid, 4092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 4064 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-18 14:51:00,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2024-11-18 14:51:00,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 3058. [2024-11-18 14:51:00,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3058 states, 1770 states have (on average 1.215819209039548) internal successors, (2152), 1900 states have internal predecessors, (2152), 1256 states have call successors, (1256), 32 states have call predecessors, (1256), 31 states have return successors, (1255), 1154 states have call predecessors, (1255), 1255 states have call successors, (1255) [2024-11-18 14:51:00,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3058 states to 3058 states and 4663 transitions. [2024-11-18 14:51:00,869 INFO L78 Accepts]: Start accepts. Automaton has 3058 states and 4663 transitions. Word has length 1346 [2024-11-18 14:51:00,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:51:00,871 INFO L471 AbstractCegarLoop]: Abstraction has 3058 states and 4663 transitions. [2024-11-18 14:51:00,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 73.0) internal successors, (292), 5 states have internal predecessors, (292), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) [2024-11-18 14:51:00,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3058 states and 4663 transitions. [2024-11-18 14:51:00,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1351 [2024-11-18 14:51:00,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:51:00,884 INFO L215 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:51:00,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:51:00,884 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:51:00,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:51:00,885 INFO L85 PathProgramCache]: Analyzing trace with hash 432010030, now seen corresponding path program 1 times [2024-11-18 14:51:00,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:51:00,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951376974] [2024-11-18 14:51:00,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:51:00,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:51:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:51:02,535 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2024-11-18 14:51:02,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:51:02,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951376974] [2024-11-18 14:51:02,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951376974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:51:02,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:51:02,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:51:02,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310594736] [2024-11-18 14:51:02,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:51:02,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:51:02,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:51:02,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:51:02,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:51:02,544 INFO L87 Difference]: Start difference. First operand 3058 states and 4663 transitions. Second operand has 5 states, 4 states have (on average 73.5) internal successors, (294), 5 states have internal predecessors, (294), 4 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) [2024-11-18 14:51:06,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:51:06,312 INFO L93 Difference]: Finished difference Result 5546 states and 8488 transitions. [2024-11-18 14:51:06,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:51:06,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 73.5) internal successors, (294), 5 states have internal predecessors, (294), 4 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) Word has length 1350 [2024-11-18 14:51:06,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:51:06,338 INFO L225 Difference]: With dead ends: 5546 [2024-11-18 14:51:06,339 INFO L226 Difference]: Without dead ends: 3059 [2024-11-18 14:51:06,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:51:06,356 INFO L432 NwaCegarLoop]: 4620 mSDtfsCounter, 4625 mSDsluCounter, 3201 mSDsCounter, 0 mSdLazyCounter, 4051 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4625 SdHoareTripleChecker+Valid, 7821 SdHoareTripleChecker+Invalid, 4081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 4051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:51:06,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4625 Valid, 7821 Invalid, 4081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 4051 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-18 14:51:06,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2024-11-18 14:51:06,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 3054. [2024-11-18 14:51:06,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3054 states, 1768 states have (on average 1.2149321266968325) internal successors, (2148), 1898 states have internal predecessors, (2148), 1254 states have call successors, (1254), 32 states have call predecessors, (1254), 31 states have return successors, (1253), 1152 states have call predecessors, (1253), 1253 states have call successors, (1253) [2024-11-18 14:51:06,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 4655 transitions. [2024-11-18 14:51:06,810 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 4655 transitions. Word has length 1350 [2024-11-18 14:51:06,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:51:06,812 INFO L471 AbstractCegarLoop]: Abstraction has 3054 states and 4655 transitions. [2024-11-18 14:51:06,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 73.5) internal successors, (294), 5 states have internal predecessors, (294), 4 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) [2024-11-18 14:51:06,813 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 4655 transitions. [2024-11-18 14:51:06,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1352 [2024-11-18 14:51:06,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:51:06,834 INFO L215 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:51:06,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:51:06,836 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:51:06,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:51:06,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1284487325, now seen corresponding path program 1 times [2024-11-18 14:51:06,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:51:06,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098027865] [2024-11-18 14:51:06,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:51:06,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:51:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:51:09,915 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2024-11-18 14:51:09,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:51:09,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098027865] [2024-11-18 14:51:09,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098027865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:51:09,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:51:09,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:51:09,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605243294] [2024-11-18 14:51:09,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:51:09,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:51:09,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:51:09,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:51:09,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:51:09,919 INFO L87 Difference]: Start difference. First operand 3054 states and 4655 transitions. Second operand has 6 states, 6 states have (on average 49.166666666666664) internal successors, (295), 5 states have internal predecessors, (295), 3 states have call successors, (216), 3 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) [2024-11-18 14:51:14,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:51:14,609 INFO L93 Difference]: Finished difference Result 5442 states and 8323 transitions. [2024-11-18 14:51:14,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:51:14,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.166666666666664) internal successors, (295), 5 states have internal predecessors, (295), 3 states have call successors, (216), 3 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) Word has length 1351 [2024-11-18 14:51:14,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:51:14,642 INFO L225 Difference]: With dead ends: 5442 [2024-11-18 14:51:14,642 INFO L226 Difference]: Without dead ends: 5440 [2024-11-18 14:51:14,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:51:14,645 INFO L432 NwaCegarLoop]: 3390 mSDtfsCounter, 5620 mSDsluCounter, 8367 mSDsCounter, 0 mSdLazyCounter, 1764 mSolverCounterSat, 2796 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5980 SdHoareTripleChecker+Valid, 11757 SdHoareTripleChecker+Invalid, 4560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2796 IncrementalHoareTripleChecker+Valid, 1764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:51:14,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5980 Valid, 11757 Invalid, 4560 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2796 Valid, 1764 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-18 14:51:14,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5440 states. [2024-11-18 14:51:15,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5440 to 5412. [2024-11-18 14:51:15,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5412 states, 3140 states have (on average 1.223248407643312) internal successors, (3841), 3395 states have internal predecessors, (3841), 2213 states have call successors, (2213), 58 states have call predecessors, (2213), 58 states have return successors, (2240), 2014 states have call predecessors, (2240), 2211 states have call successors, (2240) [2024-11-18 14:51:15,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5412 states to 5412 states and 8294 transitions. [2024-11-18 14:51:15,482 INFO L78 Accepts]: Start accepts. Automaton has 5412 states and 8294 transitions. Word has length 1351 [2024-11-18 14:51:15,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:51:15,483 INFO L471 AbstractCegarLoop]: Abstraction has 5412 states and 8294 transitions. [2024-11-18 14:51:15,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.166666666666664) internal successors, (295), 5 states have internal predecessors, (295), 3 states have call successors, (216), 3 states have call predecessors, (216), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) [2024-11-18 14:51:15,484 INFO L276 IsEmpty]: Start isEmpty. Operand 5412 states and 8294 transitions. [2024-11-18 14:51:15,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1403 [2024-11-18 14:51:15,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:51:15,499 INFO L215 NwaCegarLoop]: trace histogram [210, 210, 210, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:51:15,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:51:15,499 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:51:15,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:51:15,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1978962711, now seen corresponding path program 1 times [2024-11-18 14:51:15,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:51:15,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290443948] [2024-11-18 14:51:15,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:51:15,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:51:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:51:17,694 INFO L134 CoverageAnalysis]: Checked inductivity of 87792 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 87790 trivial. 0 not checked. [2024-11-18 14:51:17,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:51:17,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290443948] [2024-11-18 14:51:17,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290443948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:51:17,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:51:17,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:51:17,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29095077] [2024-11-18 14:51:17,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:51:17,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:51:17,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:51:17,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:51:17,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:51:17,699 INFO L87 Difference]: Start difference. First operand 5412 states and 8294 transitions. Second operand has 5 states, 4 states have (on average 82.0) internal successors, (328), 5 states have internal predecessors, (328), 4 states have call successors, (221), 2 states have call predecessors, (221), 2 states have return successors, (219), 3 states have call predecessors, (219), 4 states have call successors, (219) [2024-11-18 14:51:20,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:51:20,110 INFO L93 Difference]: Finished difference Result 10781 states and 16512 transitions. [2024-11-18 14:51:20,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:51:20,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 82.0) internal successors, (328), 5 states have internal predecessors, (328), 4 states have call successors, (221), 2 states have call predecessors, (221), 2 states have return successors, (219), 3 states have call predecessors, (219), 4 states have call successors, (219) Word has length 1402 [2024-11-18 14:51:20,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:51:20,151 INFO L225 Difference]: With dead ends: 10781 [2024-11-18 14:51:20,151 INFO L226 Difference]: Without dead ends: 5940 [2024-11-18 14:51:20,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:51:20,185 INFO L432 NwaCegarLoop]: 3747 mSDtfsCounter, 3755 mSDsluCounter, 2129 mSDsCounter, 0 mSdLazyCounter, 2486 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3755 SdHoareTripleChecker+Valid, 5876 SdHoareTripleChecker+Invalid, 2514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:51:20,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3755 Valid, 5876 Invalid, 2514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2486 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-18 14:51:20,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5940 states. [2024-11-18 14:51:21,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5940 to 5938. [2024-11-18 14:51:21,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5938 states, 3528 states have (on average 1.2361111111111112) internal successors, (4361), 3783 states have internal predecessors, (4361), 2337 states have call successors, (2337), 72 states have call predecessors, (2337), 72 states have return successors, (2364), 2138 states have call predecessors, (2364), 2335 states have call successors, (2364) [2024-11-18 14:51:21,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5938 states to 5938 states and 9062 transitions. [2024-11-18 14:51:21,291 INFO L78 Accepts]: Start accepts. Automaton has 5938 states and 9062 transitions. Word has length 1402 [2024-11-18 14:51:21,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:51:21,292 INFO L471 AbstractCegarLoop]: Abstraction has 5938 states and 9062 transitions. [2024-11-18 14:51:21,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 82.0) internal successors, (328), 5 states have internal predecessors, (328), 4 states have call successors, (221), 2 states have call predecessors, (221), 2 states have return successors, (219), 3 states have call predecessors, (219), 4 states have call successors, (219) [2024-11-18 14:51:21,294 INFO L276 IsEmpty]: Start isEmpty. Operand 5938 states and 9062 transitions. [2024-11-18 14:51:21,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1407 [2024-11-18 14:51:21,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:51:21,309 INFO L215 NwaCegarLoop]: trace histogram [210, 210, 210, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:51:21,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:51:21,310 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:51:21,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:51:21,310 INFO L85 PathProgramCache]: Analyzing trace with hash 176291375, now seen corresponding path program 1 times [2024-11-18 14:51:21,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:51:21,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621416060] [2024-11-18 14:51:21,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:51:21,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:51:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:51:22,754 INFO L134 CoverageAnalysis]: Checked inductivity of 87792 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 87784 trivial. 0 not checked. [2024-11-18 14:51:22,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:51:22,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621416060] [2024-11-18 14:51:22,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621416060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:51:22,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:51:22,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:51:22,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073813439] [2024-11-18 14:51:22,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:51:22,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:51:22,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:51:22,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:51:22,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:51:22,759 INFO L87 Difference]: Start difference. First operand 5938 states and 9062 transitions. Second operand has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2024-11-18 14:51:26,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:51:26,640 INFO L93 Difference]: Finished difference Result 11292 states and 17258 transitions. [2024-11-18 14:51:26,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:51:26,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) Word has length 1406 [2024-11-18 14:51:26,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:51:26,678 INFO L225 Difference]: With dead ends: 11292 [2024-11-18 14:51:26,679 INFO L226 Difference]: Without dead ends: 5925 [2024-11-18 14:51:26,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:51:26,714 INFO L432 NwaCegarLoop]: 4635 mSDtfsCounter, 6772 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 2633 mSolverCounterSat, 2575 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6772 SdHoareTripleChecker+Valid, 6723 SdHoareTripleChecker+Invalid, 5208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2575 IncrementalHoareTripleChecker+Valid, 2633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:51:26,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6772 Valid, 6723 Invalid, 5208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2575 Valid, 2633 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-18 14:51:26,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5925 states. [2024-11-18 14:51:27,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5925 to 5922. [2024-11-18 14:51:27,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5922 states, 3518 states have (on average 1.2345082433200683) internal successors, (4343), 3773 states have internal predecessors, (4343), 2331 states have call successors, (2331), 72 states have call predecessors, (2331), 72 states have return successors, (2358), 2132 states have call predecessors, (2358), 2329 states have call successors, (2358) [2024-11-18 14:51:27,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5922 states to 5922 states and 9032 transitions. [2024-11-18 14:51:27,744 INFO L78 Accepts]: Start accepts. Automaton has 5922 states and 9032 transitions. Word has length 1406 [2024-11-18 14:51:27,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:51:27,745 INFO L471 AbstractCegarLoop]: Abstraction has 5922 states and 9032 transitions. [2024-11-18 14:51:27,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2024-11-18 14:51:27,746 INFO L276 IsEmpty]: Start isEmpty. Operand 5922 states and 9032 transitions. [2024-11-18 14:51:27,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1408 [2024-11-18 14:51:27,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:51:27,761 INFO L215 NwaCegarLoop]: trace histogram [210, 210, 210, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:51:27,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:51:27,762 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:51:27,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:51:27,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1320742153, now seen corresponding path program 1 times [2024-11-18 14:51:27,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:51:27,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997320870] [2024-11-18 14:51:27,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:51:27,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:51:28,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:51:29,296 INFO L134 CoverageAnalysis]: Checked inductivity of 87792 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 87785 trivial. 0 not checked. [2024-11-18 14:51:29,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:51:29,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997320870] [2024-11-18 14:51:29,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997320870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:51:29,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:51:29,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:51:29,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365157512] [2024-11-18 14:51:29,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:51:29,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:51:29,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:51:29,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:51:29,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:51:29,300 INFO L87 Difference]: Start difference. First operand 5922 states and 9032 transitions. Second operand has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2024-11-18 14:51:32,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:51:32,474 INFO L93 Difference]: Finished difference Result 11269 states and 17206 transitions. [2024-11-18 14:51:32,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:51:32,475 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) Word has length 1407 [2024-11-18 14:51:32,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:51:32,503 INFO L225 Difference]: With dead ends: 11269 [2024-11-18 14:51:32,504 INFO L226 Difference]: Without dead ends: 5918 [2024-11-18 14:51:32,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:51:32,535 INFO L432 NwaCegarLoop]: 3733 mSDtfsCounter, 3731 mSDsluCounter, 3414 mSDsCounter, 0 mSdLazyCounter, 4156 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3731 SdHoareTripleChecker+Valid, 7147 SdHoareTripleChecker+Invalid, 4185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 4156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-18 14:51:32,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3731 Valid, 7147 Invalid, 4185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 4156 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-18 14:51:32,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5918 states. [2024-11-18 14:51:33,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5918 to 5916. [2024-11-18 14:51:33,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5916 states, 3514 states have (on average 1.2336368810472396) internal successors, (4335), 3769 states have internal predecessors, (4335), 2329 states have call successors, (2329), 72 states have call predecessors, (2329), 72 states have return successors, (2356), 2130 states have call predecessors, (2356), 2327 states have call successors, (2356) [2024-11-18 14:51:33,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5916 states to 5916 states and 9020 transitions. [2024-11-18 14:51:33,449 INFO L78 Accepts]: Start accepts. Automaton has 5916 states and 9020 transitions. Word has length 1407 [2024-11-18 14:51:33,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:51:33,450 INFO L471 AbstractCegarLoop]: Abstraction has 5916 states and 9020 transitions. [2024-11-18 14:51:33,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2024-11-18 14:51:33,451 INFO L276 IsEmpty]: Start isEmpty. Operand 5916 states and 9020 transitions. [2024-11-18 14:51:33,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1412 [2024-11-18 14:51:33,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:51:33,465 INFO L215 NwaCegarLoop]: trace histogram [210, 210, 210, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:51:33,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:51:33,465 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:51:33,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:51:33,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1084472696, now seen corresponding path program 1 times [2024-11-18 14:51:33,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:51:33,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996611676] [2024-11-18 14:51:33,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:51:33,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:51:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:51:35,105 INFO L134 CoverageAnalysis]: Checked inductivity of 87790 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 87784 trivial. 0 not checked. [2024-11-18 14:51:35,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:51:35,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996611676] [2024-11-18 14:51:35,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996611676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:51:35,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:51:35,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:51:35,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691355047] [2024-11-18 14:51:35,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:51:35,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:51:35,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:51:35,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:51:35,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:51:35,112 INFO L87 Difference]: Start difference. First operand 5916 states and 9020 transitions. Second operand has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 4 states have call successors, (223), 2 states have call predecessors, (223), 4 states have return successors, (221), 4 states have call predecessors, (221), 4 states have call successors, (221) [2024-11-18 14:51:39,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:51:39,210 INFO L93 Difference]: Finished difference Result 11260 states and 17188 transitions. [2024-11-18 14:51:39,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:51:39,210 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 4 states have call successors, (223), 2 states have call predecessors, (223), 4 states have return successors, (221), 4 states have call predecessors, (221), 4 states have call successors, (221) Word has length 1411 [2024-11-18 14:51:39,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:51:39,238 INFO L225 Difference]: With dead ends: 11260 [2024-11-18 14:51:39,239 INFO L226 Difference]: Without dead ends: 5915 [2024-11-18 14:51:39,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:51:39,269 INFO L432 NwaCegarLoop]: 4631 mSDtfsCounter, 5945 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 4329 mSolverCounterSat, 1703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5945 SdHoareTripleChecker+Valid, 8010 SdHoareTripleChecker+Invalid, 6032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1703 IncrementalHoareTripleChecker+Valid, 4329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-18 14:51:39,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5945 Valid, 8010 Invalid, 6032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1703 Valid, 4329 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-18 14:51:39,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5915 states. [2024-11-18 14:51:40,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5915 to 5912. [2024-11-18 14:51:40,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5912 states, 3512 states have (on average 1.2332004555808656) internal successors, (4331), 3767 states have internal predecessors, (4331), 2327 states have call successors, (2327), 72 states have call predecessors, (2327), 72 states have return successors, (2354), 2128 states have call predecessors, (2354), 2325 states have call successors, (2354) [2024-11-18 14:51:40,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5912 states to 5912 states and 9012 transitions. [2024-11-18 14:51:40,175 INFO L78 Accepts]: Start accepts. Automaton has 5912 states and 9012 transitions. Word has length 1411 [2024-11-18 14:51:40,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:51:40,176 INFO L471 AbstractCegarLoop]: Abstraction has 5912 states and 9012 transitions. [2024-11-18 14:51:40,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 4 states have call successors, (223), 2 states have call predecessors, (223), 4 states have return successors, (221), 4 states have call predecessors, (221), 4 states have call successors, (221) [2024-11-18 14:51:40,177 INFO L276 IsEmpty]: Start isEmpty. Operand 5912 states and 9012 transitions. [2024-11-18 14:51:40,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1413 [2024-11-18 14:51:40,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:51:40,191 INFO L215 NwaCegarLoop]: trace histogram [210, 210, 210, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:51:40,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:51:40,192 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:51:40,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:51:40,192 INFO L85 PathProgramCache]: Analyzing trace with hash 111429735, now seen corresponding path program 1 times [2024-11-18 14:51:40,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:51:40,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786995040] [2024-11-18 14:51:40,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:51:40,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:51:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:51:41,638 INFO L134 CoverageAnalysis]: Checked inductivity of 87795 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 87791 trivial. 0 not checked. [2024-11-18 14:51:41,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:51:41,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786995040] [2024-11-18 14:51:41,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786995040] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:51:41,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274696254] [2024-11-18 14:51:41,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:51:41,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:51:41,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:51:41,641 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) [2024-11-18 14:51:41,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 14:51:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:51:43,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 4835 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-18 14:51:43,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:51:43,300 INFO L134 CoverageAnalysis]: Checked inductivity of 87795 backedges. 844 proven. 0 refuted. 0 times theorem prover too weak. 86951 trivial. 0 not checked. [2024-11-18 14:51:43,301 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:51:43,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274696254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:51:43,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:51:43,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2024-11-18 14:51:43,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038704754] [2024-11-18 14:51:43,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:51:43,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:51:43,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:51:43,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:51:43,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:51:43,304 INFO L87 Difference]: Start difference. First operand 5912 states and 9012 transitions. Second operand has 8 states, 8 states have (on average 42.375) internal successors, (339), 7 states have internal predecessors, (339), 3 states have call successors, (223), 4 states have call predecessors, (223), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2024-11-18 14:51:47,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:51:47,345 INFO L93 Difference]: Finished difference Result 9091 states and 13914 transitions. [2024-11-18 14:51:47,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:51:47,345 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 42.375) internal successors, (339), 7 states have internal predecessors, (339), 3 states have call successors, (223), 4 states have call predecessors, (223), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) Word has length 1412 [2024-11-18 14:51:47,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:51:47,397 INFO L225 Difference]: With dead ends: 9091 [2024-11-18 14:51:47,397 INFO L226 Difference]: Without dead ends: 9089 [2024-11-18 14:51:47,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1418 GetRequests, 1408 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:51:47,406 INFO L432 NwaCegarLoop]: 3771 mSDtfsCounter, 3729 mSDsluCounter, 14844 mSDsCounter, 0 mSdLazyCounter, 5880 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3731 SdHoareTripleChecker+Valid, 18615 SdHoareTripleChecker+Invalid, 5884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:51:47,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3731 Valid, 18615 Invalid, 5884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5880 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-18 14:51:47,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9089 states. [2024-11-18 14:51:48,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9089 to 9083. [2024-11-18 14:51:49,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9083 states, 5333 states have (on average 1.2223888993062066) internal successors, (6519), 5729 states have internal predecessors, (6519), 3647 states have call successors, (3647), 101 states have call predecessors, (3647), 102 states have return successors, (3740), 3355 states have call predecessors, (3740), 3643 states have call successors, (3740) [2024-11-18 14:51:49,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9083 states to 9083 states and 13906 transitions. [2024-11-18 14:51:49,077 INFO L78 Accepts]: Start accepts. Automaton has 9083 states and 13906 transitions. Word has length 1412 [2024-11-18 14:51:49,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:51:49,078 INFO L471 AbstractCegarLoop]: Abstraction has 9083 states and 13906 transitions. [2024-11-18 14:51:49,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 42.375) internal successors, (339), 7 states have internal predecessors, (339), 3 states have call successors, (223), 4 states have call predecessors, (223), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2024-11-18 14:51:49,079 INFO L276 IsEmpty]: Start isEmpty. Operand 9083 states and 13906 transitions. [2024-11-18 14:51:49,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1415 [2024-11-18 14:51:49,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:51:49,094 INFO L215 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:51:49,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 14:51:49,294 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,SelfDestructingSolverStorable9 [2024-11-18 14:51:49,295 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:51:49,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:51:49,296 INFO L85 PathProgramCache]: Analyzing trace with hash -2138899865, now seen corresponding path program 1 times [2024-11-18 14:51:49,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:51:49,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765349269] [2024-11-18 14:51:49,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:51:49,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms