./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 e0f65ddacc19e229149f7733305e27ede1d7c46ea04122324ae4c2ba294bcff0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 16:23:50,859 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 16:23:50,917 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 16:23:50,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 16:23:50,924 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 16:23:50,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 16:23:50,947 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 16:23:50,947 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 16:23:50,947 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 16:23:50,947 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 16:23:50,947 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 16:23:50,947 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 16:23:50,947 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 16:23:50,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 16:23:50,947 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 16:23:50,948 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 16:23:50,948 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 16:23:50,948 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 16:23:50,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 16:23:50,948 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 16:23:50,948 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 16:23:50,948 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 16:23:50,948 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 16:23:50,948 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 16:23:50,948 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 16:23:50,948 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 16:23:50,948 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 16:23:50,948 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 16:23:50,948 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 16:23:50,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 16:23:50,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 16:23:50,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 16:23:50,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:23:50,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 16:23:50,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 16:23:50,949 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 16:23:50,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 16:23:50,949 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 16:23:50,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 16:23:50,949 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 16:23:50,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 16:23:50,949 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 16:23:50,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 16:23:50,949 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> e0f65ddacc19e229149f7733305e27ede1d7c46ea04122324ae4c2ba294bcff0 [2025-02-05 16:23:51,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 16:23:51,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 16:23:51,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 16:23:51,177 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 16:23:51,178 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 16:23:51,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c [2025-02-05 16:23:52,306 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2b728afce/e2160085b98c465b9f2823cc30759469/FLAG5d37e2bf5 [2025-02-05 16:23:52,723 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 16:23:52,724 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c [2025-02-05 16:23:52,740 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2b728afce/e2160085b98c465b9f2823cc30759469/FLAG5d37e2bf5 [2025-02-05 16:23:52,882 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2b728afce/e2160085b98c465b9f2823cc30759469 [2025-02-05 16:23:52,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 16:23:52,885 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 16:23:52,885 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 16:23:52,885 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 16:23:52,888 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 16:23:52,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:23:52" (1/1) ... [2025-02-05 16:23:52,889 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3396bda3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:23:52, skipping insertion in model container [2025-02-05 16:23:52,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:23:52" (1/1) ... [2025-02-05 16:23:52,940 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 16:23:53,086 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c[1974,1987] [2025-02-05 16:23:53,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:23:53,360 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 16:23:53,366 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.bug2.i","-S") [47] [2025-02-05 16:23:53,374 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c[1974,1987] [2025-02-05 16:23:53,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:23:53,590 INFO L204 MainTranslator]: Completed translation [2025-02-05 16:23:53,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:23:53 WrapperNode [2025-02-05 16:23:53,592 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 16:23:53,593 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 16:23:53,593 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 16:23:53,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 16:23:53,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:23:53" (1/1) ... [2025-02-05 16:23:53,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:23:53" (1/1) ... [2025-02-05 16:23:53,894 INFO L138 Inliner]: procedures = 61, calls = 3482, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 7603 [2025-02-05 16:23:53,895 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 16:23:53,896 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 16:23:53,896 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 16:23:53,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 16:23:53,902 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:23:53" (1/1) ... [2025-02-05 16:23:53,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:23:53" (1/1) ... [2025-02-05 16:23:53,938 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:23:53" (1/1) ... [2025-02-05 16:23:54,017 INFO L175 MemorySlicer]: Split 2465 memory accesses to 19 slices as follows [2, 2, 319, 355, 113, 113, 7, 180, 203, 180, 8, 203, 180, 203, 180, 203, 2, 8, 4]. 14 percent of accesses are in the largest equivalence class. The 328 initializations are split as follows [2, 0, 27, 27, 27, 27, 2, 27, 27, 27, 0, 27, 27, 27, 27, 27, 0, 0, 0]. The 337 writes are split as follows [0, 1, 27, 27, 27, 27, 3, 28, 26, 28, 4, 26, 28, 26, 28, 26, 1, 4, 0]. [2025-02-05 16:23:54,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:23:53" (1/1) ... [2025-02-05 16:23:54,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:23:53" (1/1) ... [2025-02-05 16:23:54,187 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:23:53" (1/1) ... [2025-02-05 16:23:54,203 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:23:53" (1/1) ... [2025-02-05 16:23:54,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:23:53" (1/1) ... [2025-02-05 16:23:54,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:23:53" (1/1) ... [2025-02-05 16:23:54,346 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 16:23:54,347 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 16:23:54,347 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 16:23:54,347 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 16:23:54,348 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:23:53" (1/1) ... [2025-02-05 16:23:54,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:23:54,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:23:54,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 16:23:54,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 16:23:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 16:23:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2025-02-05 16:23:54,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2025-02-05 16:23:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-02-05 16:23:54,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-02-05 16:23:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2025-02-05 16:23:54,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2025-02-05 16:23:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-05 16:23:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-02-05 16:23:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-02-05 16:23:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-02-05 16:23:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-02-05 16:23:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2025-02-05 16:23:54,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2025-02-05 16:23:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-05 16:23:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-05 16:23:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-05 16:23:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-05 16:23:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-05 16:23:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-05 16:23:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-05 16:23:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-05 16:23:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-05 16:23:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-02-05 16:23:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-02-05 16:23:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-02-05 16:23:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-02-05 16:23:54,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-02-05 16:23:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2025-02-05 16:23:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2025-02-05 16:23:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-02-05 16:23:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-02-05 16:23:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-02-05 16:23:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-02-05 16:23:54,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-02-05 16:23:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2025-02-05 16:23:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2025-02-05 16:23:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2025-02-05 16:23:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-05 16:23:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-02-05 16:23:54,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 16:23:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 16:23:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2025-02-05 16:23:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2025-02-05 16:23:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-02-05 16:23:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-02-05 16:23:54,434 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2025-02-05 16:23:54,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2025-02-05 16:23:54,435 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2025-02-05 16:23:54,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2025-02-05 16:23:54,873 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 16:23:54,874 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 16:23:55,396 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L221: call ULTIMATE.dealloc(OSEK_Task_ts1_~#pwm_l~0#1.base, OSEK_Task_ts1_~#pwm_l~0#1.offset);havoc OSEK_Task_ts1_~#pwm_l~0#1.base, OSEK_Task_ts1_~#pwm_l~0#1.offset;call ULTIMATE.dealloc(OSEK_Task_ts1_~#pwm_r~0#1.base, OSEK_Task_ts1_~#pwm_r~0#1.offset);havoc OSEK_Task_ts1_~#pwm_r~0#1.base, OSEK_Task_ts1_~#pwm_r~0#1.offset; [2025-02-05 16:23:55,396 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L89: call ULTIMATE.dealloc(balance_control_~#tmp~0#1.base, balance_control_~#tmp~0#1.offset);havoc balance_control_~#tmp~0#1.base, balance_control_~#tmp~0#1.offset;call ULTIMATE.dealloc(balance_control_~#tmp_theta_0~0#1.base, balance_control_~#tmp_theta_0~0#1.offset);havoc balance_control_~#tmp_theta_0~0#1.base, balance_control_~#tmp_theta_0~0#1.offset; [2025-02-05 16:24:02,852 INFO L? ?]: Removed 415 outVars from TransFormulas that were not future-live. [2025-02-05 16:24:02,852 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 16:24:02,886 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 16:24:02,887 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 16:24:02,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:24:02 BoogieIcfgContainer [2025-02-05 16:24:02,887 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 16:24:02,889 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 16:24:02,889 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 16:24:02,892 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 16:24:02,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 04:23:52" (1/3) ... [2025-02-05 16:24:02,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad83c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:24:02, skipping insertion in model container [2025-02-05 16:24:02,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:23:53" (2/3) ... [2025-02-05 16:24:02,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad83c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:24:02, skipping insertion in model container [2025-02-05 16:24:02,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:24:02" (3/3) ... [2025-02-05 16:24:02,894 INFO L128 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M1-2.c [2025-02-05 16:24:02,904 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 16:24:02,906 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_aso.2.M1-2.c that has 22 procedures, 2246 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 16:24:02,976 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 16:24:02,983 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;@24b909c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 16:24:02,984 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 16:24:02,990 INFO L276 IsEmpty]: Start isEmpty. Operand has 2246 states, 1257 states have (on average 1.2203659506762132) internal successors, (1534), 1386 states have internal predecessors, (1534), 966 states have call successors, (966), 21 states have call predecessors, (966), 21 states have return successors, (966), 866 states have call predecessors, (966), 966 states have call successors, (966) [2025-02-05 16:24:03,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2025-02-05 16:24:03,034 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:03,035 INFO L218 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] [2025-02-05 16:24:03,036 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:03,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:03,040 INFO L85 PathProgramCache]: Analyzing trace with hash -440467646, now seen corresponding path program 1 times [2025-02-05 16:24:03,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:03,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973451552] [2025-02-05 16:24:03,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:03,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:03,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1336 statements into 1 equivalence classes. [2025-02-05 16:24:03,958 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1336 of 1336 statements. [2025-02-05 16:24:03,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:03,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:04,997 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 86528 trivial. 0 not checked. [2025-02-05 16:24:04,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:04,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973451552] [2025-02-05 16:24:04,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973451552] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:24:04,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992397001] [2025-02-05 16:24:04,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:04,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:24:04,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:24:05,002 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 16:24:05,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-05 16:24:06,121 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1336 statements into 1 equivalence classes. [2025-02-05 16:24:06,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1336 of 1336 statements. [2025-02-05 16:24:06,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:06,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:06,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 4551 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 16:24:06,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:24:06,706 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 86528 trivial. 0 not checked. [2025-02-05 16:24:06,707 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 16:24:06,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992397001] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:06,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 16:24:06,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-05 16:24:06,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679171992] [2025-02-05 16:24:06,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:06,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 16:24:06,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:06,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 16:24:06,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 16:24:06,740 INFO L87 Difference]: Start difference. First operand has 2246 states, 1257 states have (on average 1.2203659506762132) internal successors, (1534), 1386 states have internal predecessors, (1534), 966 states have call successors, (966), 21 states have call predecessors, (966), 21 states have return successors, (966), 866 states have call predecessors, (966), 966 states have call successors, (966) Second operand has 2 states, 2 states have (on average 145.5) internal successors, (291), 2 states have internal predecessors, (291), 2 states have call successors, (212), 2 states have call predecessors, (212), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) [2025-02-05 16:24:06,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:06,932 INFO L93 Difference]: Finished difference Result 4487 states and 7872 transitions. [2025-02-05 16:24:06,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 16:24:06,934 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 145.5) internal successors, (291), 2 states have internal predecessors, (291), 2 states have call successors, (212), 2 states have call predecessors, (212), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) Word has length 1336 [2025-02-05 16:24:06,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:06,959 INFO L225 Difference]: With dead ends: 4487 [2025-02-05 16:24:06,960 INFO L226 Difference]: Without dead ends: 2241 [2025-02-05 16:24:06,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1337 GetRequests, 1337 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 16:24:06,981 INFO L435 NwaCegarLoop]: 3464 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, 3464 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 [2025-02-05 16:24:06,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3464 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:24:06,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2025-02-05 16:24:07,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2241. [2025-02-05 16:24:07,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2241 states, 1253 states have (on average 1.2194732641660015) internal successors, (1528), 1382 states have internal predecessors, (1528), 966 states have call successors, (966), 21 states have call predecessors, (966), 21 states have return successors, (965), 865 states have call predecessors, (965), 965 states have call successors, (965) [2025-02-05 16:24:07,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2241 states to 2241 states and 3459 transitions. [2025-02-05 16:24:07,509 INFO L78 Accepts]: Start accepts. Automaton has 2241 states and 3459 transitions. Word has length 1336 [2025-02-05 16:24:07,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:07,511 INFO L471 AbstractCegarLoop]: Abstraction has 2241 states and 3459 transitions. [2025-02-05 16:24:07,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 145.5) internal successors, (291), 2 states have internal predecessors, (291), 2 states have call successors, (212), 2 states have call predecessors, (212), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) [2025-02-05 16:24:07,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2241 states and 3459 transitions. [2025-02-05 16:24:07,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2025-02-05 16:24:07,551 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:07,551 INFO L218 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] [2025-02-05 16:24:07,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-05 16:24:07,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-05 16:24:07,756 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:07,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:07,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1708945181, now seen corresponding path program 1 times [2025-02-05 16:24:07,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:07,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367840365] [2025-02-05 16:24:07,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:07,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:08,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1336 statements into 1 equivalence classes. [2025-02-05 16:24:08,704 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1336 of 1336 statements. [2025-02-05 16:24:08,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:08,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:09,410 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86944 trivial. 0 not checked. [2025-02-05 16:24:09,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:09,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367840365] [2025-02-05 16:24:09,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367840365] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:09,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:24:09,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:24:09,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584143950] [2025-02-05 16:24:09,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:09,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:24:09,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:09,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:24:09,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:24:09,418 INFO L87 Difference]: Start difference. First operand 2241 states and 3459 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 2 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) [2025-02-05 16:24:09,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:09,664 INFO L93 Difference]: Finished difference Result 3909 states and 6076 transitions. [2025-02-05 16:24:09,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:24:09,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 2 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) Word has length 1336 [2025-02-05 16:24:09,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:09,701 INFO L225 Difference]: With dead ends: 3909 [2025-02-05 16:24:09,701 INFO L226 Difference]: Without dead ends: 2241 [2025-02-05 16:24:09,716 INFO L434 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 [2025-02-05 16:24:09,717 INFO L435 NwaCegarLoop]: 3457 mSDtfsCounter, 0 mSDsluCounter, 3447 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6904 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 [2025-02-05 16:24:09,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6904 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:24:09,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2025-02-05 16:24:10,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2241. [2025-02-05 16:24:10,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2241 states, 1253 states have (on average 1.2186751795690343) internal successors, (1527), 1382 states have internal predecessors, (1527), 966 states have call successors, (966), 21 states have call predecessors, (966), 21 states have return successors, (965), 865 states have call predecessors, (965), 965 states have call successors, (965) [2025-02-05 16:24:10,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2241 states to 2241 states and 3458 transitions. [2025-02-05 16:24:10,148 INFO L78 Accepts]: Start accepts. Automaton has 2241 states and 3458 transitions. Word has length 1336 [2025-02-05 16:24:10,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:10,151 INFO L471 AbstractCegarLoop]: Abstraction has 2241 states and 3458 transitions. [2025-02-05 16:24:10,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 2 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) [2025-02-05 16:24:10,152 INFO L276 IsEmpty]: Start isEmpty. Operand 2241 states and 3458 transitions. [2025-02-05 16:24:10,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1345 [2025-02-05 16:24:10,193 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:10,194 INFO L218 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] [2025-02-05 16:24:10,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 16:24:10,194 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:10,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:10,199 INFO L85 PathProgramCache]: Analyzing trace with hash 2102467070, now seen corresponding path program 1 times [2025-02-05 16:24:10,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:10,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851629046] [2025-02-05 16:24:10,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:10,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:10,799 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1344 statements into 1 equivalence classes. [2025-02-05 16:24:11,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1344 of 1344 statements. [2025-02-05 16:24:11,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:11,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:14,535 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2025-02-05 16:24:14,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:14,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851629046] [2025-02-05 16:24:14,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851629046] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:14,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:24:14,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 16:24:14,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076107900] [2025-02-05 16:24:14,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:14,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:24:14,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:14,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:24:14,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:24:14,539 INFO L87 Difference]: Start difference. First operand 2241 states and 3458 transitions. Second operand has 5 states, 4 states have (on average 72.75) internal successors, (291), 5 states have internal predecessors, (291), 4 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) [2025-02-05 16:24:18,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:18,026 INFO L93 Difference]: Finished difference Result 4194 states and 6488 transitions. [2025-02-05 16:24:18,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:24:18,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 72.75) internal successors, (291), 5 states have internal predecessors, (291), 4 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) Word has length 1344 [2025-02-05 16:24:18,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:18,046 INFO L225 Difference]: With dead ends: 4194 [2025-02-05 16:24:18,047 INFO L226 Difference]: Without dead ends: 2526 [2025-02-05 16:24:18,055 INFO L434 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 [2025-02-05 16:24:18,055 INFO L435 NwaCegarLoop]: 3827 mSDtfsCounter, 4835 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 2180 mSolverCounterSat, 1150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4835 SdHoareTripleChecker+Valid, 5560 SdHoareTripleChecker+Invalid, 3330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1150 IncrementalHoareTripleChecker+Valid, 2180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2025-02-05 16:24:18,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4835 Valid, 5560 Invalid, 3330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1150 Valid, 2180 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2025-02-05 16:24:18,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2526 states. [2025-02-05 16:24:18,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2526 to 2524. [2025-02-05 16:24:18,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2524 states, 1461 states have (on average 1.2361396303901437) internal successors, (1806), 1590 states have internal predecessors, (1806), 1032 states have call successors, (1032), 30 states have call predecessors, (1032), 30 states have return successors, (1031), 931 states have call predecessors, (1031), 1031 states have call successors, (1031) [2025-02-05 16:24:18,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2524 states to 2524 states and 3869 transitions. [2025-02-05 16:24:18,324 INFO L78 Accepts]: Start accepts. Automaton has 2524 states and 3869 transitions. Word has length 1344 [2025-02-05 16:24:18,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:18,326 INFO L471 AbstractCegarLoop]: Abstraction has 2524 states and 3869 transitions. [2025-02-05 16:24:18,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 72.75) internal successors, (291), 5 states have internal predecessors, (291), 4 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) [2025-02-05 16:24:18,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2524 states and 3869 transitions. [2025-02-05 16:24:18,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1349 [2025-02-05 16:24:18,358 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:18,359 INFO L218 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] [2025-02-05 16:24:18,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 16:24:18,359 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:18,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:18,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1406729676, now seen corresponding path program 1 times [2025-02-05 16:24:18,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:18,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434985853] [2025-02-05 16:24:18,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:18,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:18,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1348 statements into 1 equivalence classes. [2025-02-05 16:24:19,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1348 of 1348 statements. [2025-02-05 16:24:19,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:19,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:20,245 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2025-02-05 16:24:20,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:20,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434985853] [2025-02-05 16:24:20,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434985853] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:20,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:24:20,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 16:24:20,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860920435] [2025-02-05 16:24:20,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:20,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:24:20,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:20,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:24:20,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:24:20,249 INFO L87 Difference]: Start difference. First operand 2524 states and 3869 transitions. Second operand has 5 states, 4 states have (on average 73.25) internal successors, (293), 5 states have internal predecessors, (293), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) [2025-02-05 16:24:23,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:23,408 INFO L93 Difference]: Finished difference Result 4473 states and 6892 transitions. [2025-02-05 16:24:23,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:24:23,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 73.25) internal successors, (293), 5 states have internal predecessors, (293), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) Word has length 1348 [2025-02-05 16:24:23,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:23,431 INFO L225 Difference]: With dead ends: 4473 [2025-02-05 16:24:23,431 INFO L226 Difference]: Without dead ends: 2522 [2025-02-05 16:24:23,440 INFO L434 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 [2025-02-05 16:24:23,441 INFO L435 NwaCegarLoop]: 3820 mSDtfsCounter, 4824 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 2173 mSolverCounterSat, 1151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4824 SdHoareTripleChecker+Valid, 5551 SdHoareTripleChecker+Invalid, 3324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1151 IncrementalHoareTripleChecker+Valid, 2173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:24:23,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4824 Valid, 5551 Invalid, 3324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1151 Valid, 2173 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2025-02-05 16:24:23,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2522 states. [2025-02-05 16:24:23,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2522 to 2520. [2025-02-05 16:24:23,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2520 states, 1459 states have (on average 1.2350925291295407) internal successors, (1802), 1588 states have internal predecessors, (1802), 1030 states have call successors, (1030), 30 states have call predecessors, (1030), 30 states have return successors, (1029), 929 states have call predecessors, (1029), 1029 states have call successors, (1029) [2025-02-05 16:24:23,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2520 states to 2520 states and 3861 transitions. [2025-02-05 16:24:23,742 INFO L78 Accepts]: Start accepts. Automaton has 2520 states and 3861 transitions. Word has length 1348 [2025-02-05 16:24:23,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:23,744 INFO L471 AbstractCegarLoop]: Abstraction has 2520 states and 3861 transitions. [2025-02-05 16:24:23,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 73.25) internal successors, (293), 5 states have internal predecessors, (293), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) [2025-02-05 16:24:23,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2520 states and 3861 transitions. [2025-02-05 16:24:23,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1350 [2025-02-05 16:24:23,754 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:23,755 INFO L218 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] [2025-02-05 16:24:23,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 16:24:23,755 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:23,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:23,756 INFO L85 PathProgramCache]: Analyzing trace with hash -212246826, now seen corresponding path program 1 times [2025-02-05 16:24:23,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:23,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210813369] [2025-02-05 16:24:23,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:23,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:24,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1349 statements into 1 equivalence classes. [2025-02-05 16:24:24,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1349 of 1349 statements. [2025-02-05 16:24:24,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:24,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2025-02-05 16:24:27,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:27,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210813369] [2025-02-05 16:24:27,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210813369] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:27,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:24:27,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:24:27,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718188072] [2025-02-05 16:24:27,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:27,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:24:27,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:27,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:24:27,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:24:27,385 INFO L87 Difference]: Start difference. First operand 2520 states and 3861 transitions. Second operand has 6 states, 6 states have (on average 49.0) internal successors, (294), 5 states have internal predecessors, (294), 3 states have call successors, (215), 3 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) [2025-02-05 16:24:31,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:31,772 INFO L93 Difference]: Finished difference Result 4371 states and 6727 transitions. [2025-02-05 16:24:31,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 16:24:31,773 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.0) internal successors, (294), 5 states have internal predecessors, (294), 3 states have call successors, (215), 3 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) Word has length 1349 [2025-02-05 16:24:31,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:31,801 INFO L225 Difference]: With dead ends: 4371 [2025-02-05 16:24:31,802 INFO L226 Difference]: Without dead ends: 4369 [2025-02-05 16:24:31,804 INFO L434 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 [2025-02-05 16:24:31,805 INFO L435 NwaCegarLoop]: 3449 mSDtfsCounter, 5351 mSDsluCounter, 8114 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 2623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5462 SdHoareTripleChecker+Valid, 11563 SdHoareTripleChecker+Invalid, 3960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2623 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:24:31,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5462 Valid, 11563 Invalid, 3960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2623 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2025-02-05 16:24:31,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4369 states. [2025-02-05 16:24:32,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4369 to 4344. [2025-02-05 16:24:32,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4344 states, 2522 states have (on average 1.2486122125297383) internal successors, (3149), 2775 states have internal predecessors, (3149), 1765 states have call successors, (1765), 55 states have call predecessors, (1765), 56 states have return successors, (1787), 1567 states have call predecessors, (1787), 1763 states have call successors, (1787) [2025-02-05 16:24:32,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4344 states to 4344 states and 6701 transitions. [2025-02-05 16:24:32,318 INFO L78 Accepts]: Start accepts. Automaton has 4344 states and 6701 transitions. Word has length 1349 [2025-02-05 16:24:32,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:32,319 INFO L471 AbstractCegarLoop]: Abstraction has 4344 states and 6701 transitions. [2025-02-05 16:24:32,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.0) internal successors, (294), 5 states have internal predecessors, (294), 3 states have call successors, (215), 3 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) [2025-02-05 16:24:32,320 INFO L276 IsEmpty]: Start isEmpty. Operand 4344 states and 6701 transitions. [2025-02-05 16:24:32,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1355 [2025-02-05 16:24:32,330 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:32,330 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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] [2025-02-05 16:24:32,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 16:24:32,331 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:32,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:32,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1118575939, now seen corresponding path program 1 times [2025-02-05 16:24:32,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:32,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088514261] [2025-02-05 16:24:32,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:32,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:33,078 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1354 statements into 1 equivalence classes. [2025-02-05 16:24:33,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1354 of 1354 statements. [2025-02-05 16:24:33,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:33,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:35,158 INFO L134 CoverageAnalysis]: Checked inductivity of 86949 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2025-02-05 16:24:35,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:35,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088514261] [2025-02-05 16:24:35,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088514261] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:35,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:24:35,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 16:24:35,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359116603] [2025-02-05 16:24:35,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:35,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:24:35,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:35,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:24:35,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:24:35,164 INFO L87 Difference]: Start difference. First operand 4344 states and 6701 transitions. Second operand has 5 states, 5 states have (on average 59.4) internal successors, (297), 4 states have internal predecessors, (297), 2 states have call successors, (216), 2 states have call predecessors, (216), 1 states have return successors, (215), 2 states have call predecessors, (215), 2 states have call successors, (215) [2025-02-05 16:24:35,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:35,467 INFO L93 Difference]: Finished difference Result 5307 states and 8169 transitions. [2025-02-05 16:24:35,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:24:35,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 4 states have internal predecessors, (297), 2 states have call successors, (216), 2 states have call predecessors, (216), 1 states have return successors, (215), 2 states have call predecessors, (215), 2 states have call successors, (215) Word has length 1354 [2025-02-05 16:24:35,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:35,501 INFO L225 Difference]: With dead ends: 5307 [2025-02-05 16:24:35,502 INFO L226 Difference]: Without dead ends: 5282 [2025-02-05 16:24:35,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-05 16:24:35,508 INFO L435 NwaCegarLoop]: 3436 mSDtfsCounter, 3403 mSDsluCounter, 7518 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3426 SdHoareTripleChecker+Valid, 10954 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 16:24:35,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3426 Valid, 10954 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 16:24:35,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5282 states. [2025-02-05 16:24:36,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5282 to 5281. [2025-02-05 16:24:36,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5281 states, 3121 states have (on average 1.2592117910925986) internal successors, (3930), 3424 states have internal predecessors, (3930), 2087 states have call successors, (2087), 69 states have call predecessors, (2087), 72 states have return successors, (2111), 1840 states have call predecessors, (2111), 2086 states have call successors, (2111) [2025-02-05 16:24:36,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5281 states to 5281 states and 8128 transitions. [2025-02-05 16:24:36,447 INFO L78 Accepts]: Start accepts. Automaton has 5281 states and 8128 transitions. Word has length 1354 [2025-02-05 16:24:36,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:36,449 INFO L471 AbstractCegarLoop]: Abstraction has 5281 states and 8128 transitions. [2025-02-05 16:24:36,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 4 states have internal predecessors, (297), 2 states have call successors, (216), 2 states have call predecessors, (216), 1 states have return successors, (215), 2 states have call predecessors, (215), 2 states have call successors, (215) [2025-02-05 16:24:36,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5281 states and 8128 transitions. [2025-02-05 16:24:36,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1406 [2025-02-05 16:24:36,466 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:36,467 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 3, 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] [2025-02-05 16:24:36,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-05 16:24:36,467 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:36,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:36,468 INFO L85 PathProgramCache]: Analyzing trace with hash 878731067, now seen corresponding path program 1 times [2025-02-05 16:24:36,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:36,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580024891] [2025-02-05 16:24:36,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:36,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:36,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1405 statements into 1 equivalence classes. [2025-02-05 16:24:37,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1405 of 1405 statements. [2025-02-05 16:24:37,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:37,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:38,899 INFO L134 CoverageAnalysis]: Checked inductivity of 87798 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 87794 trivial. 0 not checked. [2025-02-05 16:24:38,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:38,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580024891] [2025-02-05 16:24:38,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580024891] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:38,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:24:38,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 16:24:38,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847090824] [2025-02-05 16:24:38,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:38,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:24:38,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:38,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:24:38,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:24:38,907 INFO L87 Difference]: Start difference. First operand 5281 states and 8128 transitions. Second operand has 5 states, 4 states have (on average 81.75) internal successors, (327), 5 states have internal predecessors, (327), 4 states have call successors, (221), 2 states have call predecessors, (221), 2 states have return successors, (220), 3 states have call predecessors, (220), 4 states have call successors, (220) [2025-02-05 16:24:41,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:41,481 INFO L93 Difference]: Finished difference Result 10453 states and 16066 transitions. [2025-02-05 16:24:41,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:24:41,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 81.75) internal successors, (327), 5 states have internal predecessors, (327), 4 states have call successors, (221), 2 states have call predecessors, (221), 2 states have return successors, (220), 3 states have call predecessors, (220), 4 states have call successors, (220) Word has length 1405 [2025-02-05 16:24:41,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:41,533 INFO L225 Difference]: With dead ends: 10453 [2025-02-05 16:24:41,536 INFO L226 Difference]: Without dead ends: 5809 [2025-02-05 16:24:41,551 INFO L434 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 [2025-02-05 16:24:41,552 INFO L435 NwaCegarLoop]: 3806 mSDtfsCounter, 3817 mSDsluCounter, 2139 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3817 SdHoareTripleChecker+Valid, 5945 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-02-05 16:24:41,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3817 Valid, 5945 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-02-05 16:24:41,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5809 states. [2025-02-05 16:24:42,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5809 to 5807. [2025-02-05 16:24:42,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5807 states, 3509 states have (on average 1.2681675691080079) internal successors, (4450), 3812 states have internal predecessors, (4450), 2211 states have call successors, (2211), 83 states have call predecessors, (2211), 86 states have return successors, (2235), 1964 states have call predecessors, (2235), 2210 states have call successors, (2235) [2025-02-05 16:24:42,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5807 states to 5807 states and 8896 transitions. [2025-02-05 16:24:42,188 INFO L78 Accepts]: Start accepts. Automaton has 5807 states and 8896 transitions. Word has length 1405 [2025-02-05 16:24:42,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:42,195 INFO L471 AbstractCegarLoop]: Abstraction has 5807 states and 8896 transitions. [2025-02-05 16:24:42,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 81.75) internal successors, (327), 5 states have internal predecessors, (327), 4 states have call successors, (221), 2 states have call predecessors, (221), 2 states have return successors, (220), 3 states have call predecessors, (220), 4 states have call successors, (220) [2025-02-05 16:24:42,196 INFO L276 IsEmpty]: Start isEmpty. Operand 5807 states and 8896 transitions. [2025-02-05 16:24:42,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1410 [2025-02-05 16:24:42,250 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:42,251 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 3, 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] [2025-02-05 16:24:42,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-05 16:24:42,255 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:42,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:42,256 INFO L85 PathProgramCache]: Analyzing trace with hash 2019292600, now seen corresponding path program 1 times [2025-02-05 16:24:42,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:42,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949673062] [2025-02-05 16:24:42,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:42,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:42,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1409 statements into 1 equivalence classes. [2025-02-05 16:24:43,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1409 of 1409 statements. [2025-02-05 16:24:43,020 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:43,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:43,978 INFO L134 CoverageAnalysis]: Checked inductivity of 87798 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 87788 trivial. 0 not checked. [2025-02-05 16:24:43,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:43,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949673062] [2025-02-05 16:24:43,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949673062] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:43,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:24:43,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:24:43,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347796687] [2025-02-05 16:24:43,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:43,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:24:43,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:43,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:24:43,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:24:43,982 INFO L87 Difference]: Start difference. First operand 5807 states and 8896 transitions. Second operand has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2025-02-05 16:24:47,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:47,936 INFO L93 Difference]: Finished difference Result 10961 states and 16811 transitions. [2025-02-05 16:24:47,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 16:24:47,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) Word has length 1409 [2025-02-05 16:24:47,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:47,987 INFO L225 Difference]: With dead ends: 10961 [2025-02-05 16:24:47,987 INFO L226 Difference]: Without dead ends: 5791 [2025-02-05 16:24:48,006 INFO L434 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 [2025-02-05 16:24:48,007 INFO L435 NwaCegarLoop]: 3833 mSDtfsCounter, 5626 mSDsluCounter, 1737 mSDsCounter, 0 mSdLazyCounter, 2188 mSolverCounterSat, 2123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5626 SdHoareTripleChecker+Valid, 5570 SdHoareTripleChecker+Invalid, 4311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2123 IncrementalHoareTripleChecker+Valid, 2188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2025-02-05 16:24:48,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5626 Valid, 5570 Invalid, 4311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2123 Valid, 2188 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-02-05 16:24:48,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5791 states. [2025-02-05 16:24:48,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5791 to 5791. [2025-02-05 16:24:48,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5791 states, 3499 states have (on average 1.266647613603887) internal successors, (4432), 3802 states have internal predecessors, (4432), 2205 states have call successors, (2205), 83 states have call predecessors, (2205), 86 states have return successors, (2229), 1958 states have call predecessors, (2229), 2204 states have call successors, (2229) [2025-02-05 16:24:48,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5791 states to 5791 states and 8866 transitions. [2025-02-05 16:24:48,693 INFO L78 Accepts]: Start accepts. Automaton has 5791 states and 8866 transitions. Word has length 1409 [2025-02-05 16:24:48,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:48,695 INFO L471 AbstractCegarLoop]: Abstraction has 5791 states and 8866 transitions. [2025-02-05 16:24:48,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2025-02-05 16:24:48,695 INFO L276 IsEmpty]: Start isEmpty. Operand 5791 states and 8866 transitions. [2025-02-05 16:24:48,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1411 [2025-02-05 16:24:48,710 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:48,710 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 3, 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] [2025-02-05 16:24:48,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-05 16:24:48,711 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:48,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:48,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1907662095, now seen corresponding path program 1 times [2025-02-05 16:24:48,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:48,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262566885] [2025-02-05 16:24:48,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:48,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:49,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1410 statements into 1 equivalence classes. [2025-02-05 16:24:49,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1410 of 1410 statements. [2025-02-05 16:24:49,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:49,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:50,503 INFO L134 CoverageAnalysis]: Checked inductivity of 87798 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 87789 trivial. 0 not checked. [2025-02-05 16:24:50,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:50,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262566885] [2025-02-05 16:24:50,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262566885] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:50,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:24:50,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:24:50,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345963102] [2025-02-05 16:24:50,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:50,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:24:50,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:50,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:24:50,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:24:50,506 INFO L87 Difference]: Start difference. First operand 5791 states and 8866 transitions. Second operand has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2025-02-05 16:24:54,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:54,849 INFO L93 Difference]: Finished difference Result 10941 states and 16760 transitions. [2025-02-05 16:24:54,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:24:54,850 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) Word has length 1410 [2025-02-05 16:24:54,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:54,923 INFO L225 Difference]: With dead ends: 10941 [2025-02-05 16:24:54,927 INFO L226 Difference]: Without dead ends: 5787 [2025-02-05 16:24:54,950 INFO L434 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 [2025-02-05 16:24:54,951 INFO L435 NwaCegarLoop]: 3792 mSDtfsCounter, 5122 mSDsluCounter, 3021 mSDsCounter, 0 mSdLazyCounter, 3885 mSolverCounterSat, 1734 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5122 SdHoareTripleChecker+Valid, 6813 SdHoareTripleChecker+Invalid, 5619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1734 IncrementalHoareTripleChecker+Valid, 3885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:24:54,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5122 Valid, 6813 Invalid, 5619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1734 Valid, 3885 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2025-02-05 16:24:54,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5787 states. [2025-02-05 16:24:55,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5787 to 5785. [2025-02-05 16:24:55,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5785 states, 3495 states have (on average 1.2658082975679543) internal successors, (4424), 3798 states have internal predecessors, (4424), 2203 states have call successors, (2203), 83 states have call predecessors, (2203), 86 states have return successors, (2227), 1956 states have call predecessors, (2227), 2202 states have call successors, (2227) [2025-02-05 16:24:55,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5785 states to 5785 states and 8854 transitions. [2025-02-05 16:24:55,576 INFO L78 Accepts]: Start accepts. Automaton has 5785 states and 8854 transitions. Word has length 1410 [2025-02-05 16:24:55,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:55,578 INFO L471 AbstractCegarLoop]: Abstraction has 5785 states and 8854 transitions. [2025-02-05 16:24:55,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2025-02-05 16:24:55,578 INFO L276 IsEmpty]: Start isEmpty. Operand 5785 states and 8854 transitions. [2025-02-05 16:24:55,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1415 [2025-02-05 16:24:55,593 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:55,594 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 3, 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] [2025-02-05 16:24:55,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-05 16:24:55,594 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:55,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:55,595 INFO L85 PathProgramCache]: Analyzing trace with hash 367304857, now seen corresponding path program 1 times [2025-02-05 16:24:55,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:55,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517334938] [2025-02-05 16:24:55,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:55,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:56,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1414 statements into 1 equivalence classes. [2025-02-05 16:24:56,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1414 of 1414 statements. [2025-02-05 16:24:56,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:56,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:57,358 INFO L134 CoverageAnalysis]: Checked inductivity of 87796 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 87788 trivial. 0 not checked. [2025-02-05 16:24:57,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:57,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517334938] [2025-02-05 16:24:57,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517334938] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:57,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:24:57,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 16:24:57,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712789991] [2025-02-05 16:24:57,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:57,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 16:24:57,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:57,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 16:24:57,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:24:57,366 INFO L87 Difference]: Start difference. First operand 5785 states and 8854 transitions. Second operand has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 4 states have call successors, (223), 2 states have call predecessors, (223), 4 states have return successors, (222), 4 states have call predecessors, (222), 4 states have call successors, (222) [2025-02-05 16:25:01,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:25:01,189 INFO L93 Difference]: Finished difference Result 10929 states and 16739 transitions. [2025-02-05 16:25:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:25:01,193 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 4 states have call successors, (223), 2 states have call predecessors, (223), 4 states have return successors, (222), 4 states have call predecessors, (222), 4 states have call successors, (222) Word has length 1414 [2025-02-05 16:25:01,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:25:01,293 INFO L225 Difference]: With dead ends: 10929 [2025-02-05 16:25:01,293 INFO L226 Difference]: Without dead ends: 5781 [2025-02-05 16:25:01,303 INFO L434 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 [2025-02-05 16:25:01,304 INFO L435 NwaCegarLoop]: 3829 mSDtfsCounter, 4786 mSDsluCounter, 2667 mSDsCounter, 0 mSdLazyCounter, 3432 mSolverCounterSat, 1250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4786 SdHoareTripleChecker+Valid, 6496 SdHoareTripleChecker+Invalid, 4682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1250 IncrementalHoareTripleChecker+Valid, 3432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2025-02-05 16:25:01,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4786 Valid, 6496 Invalid, 4682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1250 Valid, 3432 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2025-02-05 16:25:01,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5781 states. [2025-02-05 16:25:01,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5781 to 5781. [2025-02-05 16:25:01,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5781 states, 3493 states have (on average 1.2653879186945318) internal successors, (4420), 3796 states have internal predecessors, (4420), 2201 states have call successors, (2201), 83 states have call predecessors, (2201), 86 states have return successors, (2225), 1954 states have call predecessors, (2225), 2200 states have call successors, (2225) [2025-02-05 16:25:01,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5781 states to 5781 states and 8846 transitions. [2025-02-05 16:25:01,826 INFO L78 Accepts]: Start accepts. Automaton has 5781 states and 8846 transitions. Word has length 1414 [2025-02-05 16:25:01,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:25:01,828 INFO L471 AbstractCegarLoop]: Abstraction has 5781 states and 8846 transitions. [2025-02-05 16:25:01,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 4 states have call successors, (223), 2 states have call predecessors, (223), 4 states have return successors, (222), 4 states have call predecessors, (222), 4 states have call successors, (222) [2025-02-05 16:25:01,828 INFO L276 IsEmpty]: Start isEmpty. Operand 5781 states and 8846 transitions. [2025-02-05 16:25:01,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1416 [2025-02-05 16:25:01,841 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:25:01,842 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:25:01,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-05 16:25:01,842 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:25:01,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:25:01,844 INFO L85 PathProgramCache]: Analyzing trace with hash -453307087, now seen corresponding path program 1 times [2025-02-05 16:25:01,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:25:01,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445912073] [2025-02-05 16:25:01,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:25:01,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:25:02,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1415 statements into 1 equivalence classes. [2025-02-05 16:25:02,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1415 of 1415 statements. [2025-02-05 16:25:02,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:25:02,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:25:03,441 INFO L134 CoverageAnalysis]: Checked inductivity of 87801 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 87795 trivial. 0 not checked. [2025-02-05 16:25:03,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:25:03,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445912073] [2025-02-05 16:25:03,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445912073] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:25:03,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112222509] [2025-02-05 16:25:03,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:25:03,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:25:03,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:25:03,444 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 16:25:03,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-05 16:25:04,682 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1415 statements into 1 equivalence classes. [2025-02-05 16:25:05,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1415 of 1415 statements. [2025-02-05 16:25:05,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:25:05,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:25:05,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 4755 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-05 16:25:05,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:25:05,350 INFO L134 CoverageAnalysis]: Checked inductivity of 87801 backedges. 846 proven. 0 refuted. 0 times theorem prover too weak. 86955 trivial. 0 not checked. [2025-02-05 16:25:05,351 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 16:25:05,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112222509] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:25:05,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 16:25:05,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-02-05 16:25:05,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701505415] [2025-02-05 16:25:05,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:25:05,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 16:25:05,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:25:05,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 16:25:05,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-02-05 16:25:05,354 INFO L87 Difference]: Start difference. First operand 5781 states and 8846 transitions. Second operand has 8 states, 8 states have (on average 42.25) internal successors, (338), 7 states have internal predecessors, (338), 3 states have call successors, (223), 4 states have call predecessors, (223), 3 states have return successors, (222), 3 states have call predecessors, (222), 3 states have call successors, (222)