./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0278abdbbb57b3938e33a237527cf3a8d14feaf8eba047d58da36569d27728f --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 06:10:45,692 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 06:10:45,752 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 06:10:45,758 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 06:10:45,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 06:10:45,782 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 06:10:45,783 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 06:10:45,783 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 06:10:45,783 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 06:10:45,783 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 06:10:45,783 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 06:10:45,783 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 06:10:45,783 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 06:10:45,783 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 06:10:45,785 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 06:10:45,785 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 06:10:45,785 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 06:10:45,785 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 06:10:45,786 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 06:10:45,786 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 06:10:45,786 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 06:10:45,786 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 06:10:45,786 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 06:10:45,786 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 06:10:45,787 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 06:10:45,787 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 06:10:45,787 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 06:10:45,787 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 06:10:45,787 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 06:10:45,787 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 06:10:45,787 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 06:10:45,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 06:10:45,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:10:45,788 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 06:10:45,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 06:10:45,788 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 06:10:45,788 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 06:10:45,788 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 06:10:45,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 06:10:45,788 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 06:10:45,788 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 06:10:45,788 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 06:10:45,788 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 06:10:45,789 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/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 -> e0278abdbbb57b3938e33a237527cf3a8d14feaf8eba047d58da36569d27728f [2025-03-08 06:10:46,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 06:10:46,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 06:10:46,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 06:10:46,032 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 06:10:46,032 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 06:10:46,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-1.c [2025-03-08 06:10:47,222 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef5860ed/7e3511617f3d46f297301471794ff23f/FLAG7cf520bc3 [2025-03-08 06:10:47,565 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 06:10:47,568 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-1.c [2025-03-08 06:10:47,587 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef5860ed/7e3511617f3d46f297301471794ff23f/FLAG7cf520bc3 [2025-03-08 06:10:47,774 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef5860ed/7e3511617f3d46f297301471794ff23f [2025-03-08 06:10:47,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 06:10:47,777 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 06:10:47,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 06:10:47,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 06:10:47,783 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 06:10:47,784 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:10:47" (1/1) ... [2025-03-08 06:10:47,784 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7885d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:47, skipping insertion in model container [2025-03-08 06:10:47,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:10:47" (1/1) ... [2025-03-08 06:10:47,828 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 06:10:47,953 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-1.c[1765,1778] [2025-03-08 06:10:48,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:10:48,216 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 06:10:48,222 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.bug2.i","-S") [42] [2025-03-08 06:10:48,230 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-1.c[1765,1778] [2025-03-08 06:10:48,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:10:48,430 INFO L204 MainTranslator]: Completed translation [2025-03-08 06:10:48,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:48 WrapperNode [2025-03-08 06:10:48,431 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 06:10:48,431 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 06:10:48,432 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 06:10:48,432 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 06:10:48,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:48" (1/1) ... [2025-03-08 06:10:48,478 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:48" (1/1) ... [2025-03-08 06:10:48,670 INFO L138 Inliner]: procedures = 60, calls = 2794, calls flagged for inlining = 22, calls inlined = 22, statements flattened = 6071 [2025-03-08 06:10:48,671 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 06:10:48,671 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 06:10:48,671 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 06:10:48,671 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 06:10:48,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:48" (1/1) ... [2025-03-08 06:10:48,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:48" (1/1) ... [2025-03-08 06:10:48,712 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:48" (1/1) ... [2025-03-08 06:10:48,773 INFO L175 MemorySlicer]: Split 1970 memory accesses to 17 slices as follows [2, 8, 277, 285, 113, 113, 180, 203, 180, 203, 180, 203, 4, 8, 7, 2, 2]. 14 percent of accesses are in the largest equivalence class. The 274 initializations are split as follows [2, 0, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 0, 0, 2, 0, 0]. The 283 writes are split as follows [0, 4, 27, 27, 27, 27, 28, 26, 28, 26, 28, 26, 0, 4, 3, 1, 1]. [2025-03-08 06:10:48,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:48" (1/1) ... [2025-03-08 06:10:48,774 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:48" (1/1) ... [2025-03-08 06:10:48,886 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:48" (1/1) ... [2025-03-08 06:10:48,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:48" (1/1) ... [2025-03-08 06:10:48,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:48" (1/1) ... [2025-03-08 06:10:48,923 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:48" (1/1) ... [2025-03-08 06:10:48,954 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 06:10:48,956 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 06:10:48,956 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 06:10:48,956 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 06:10:48,957 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:48" (1/1) ... [2025-03-08 06:10:48,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:10:48,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:10:48,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 06:10:48,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 06:10:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 06:10:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-03-08 06:10:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-03-08 06:10:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2025-03-08 06:10:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2025-03-08 06:10:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 06:10:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-03-08 06:10:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-03-08 06:10:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2025-03-08 06:10:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2025-03-08 06:10:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-03-08 06:10:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-03-08 06:10:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2025-03-08 06:10:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2025-03-08 06:10:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-03-08 06:10:49,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-03-08 06:10:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-03-08 06:10:49,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-03-08 06:10:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 06:10:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2025-03-08 06:10:49,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2025-03-08 06:10:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 06:10:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 06:10:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 06:10:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-03-08 06:10:49,007 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2025-03-08 06:10:49,007 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2025-03-08 06:10:49,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 06:10:49,007 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-08 06:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-08 06:10:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-08 06:10:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-08 06:10:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 06:10:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 06:10:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2025-03-08 06:10:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2025-03-08 06:10:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-03-08 06:10:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-03-08 06:10:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2025-03-08 06:10:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2025-03-08 06:10:49,444 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 06:10:49,445 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 06:10:50,132 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L216: 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; [2025-03-08 06:10:50,133 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L84: 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; [2025-03-08 06:10:57,098 INFO L? ?]: Removed 378 outVars from TransFormulas that were not future-live. [2025-03-08 06:10:57,098 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 06:10:57,144 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 06:10:57,144 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 06:10:57,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:10:57 BoogieIcfgContainer [2025-03-08 06:10:57,144 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 06:10:57,146 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 06:10:57,146 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 06:10:57,150 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 06:10:57,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:10:47" (1/3) ... [2025-03-08 06:10:57,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2ccba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:10:57, skipping insertion in model container [2025-03-08 06:10:57,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:10:48" (2/3) ... [2025-03-08 06:10:57,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2ccba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:10:57, skipping insertion in model container [2025-03-08 06:10:57,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:10:57" (3/3) ... [2025-03-08 06:10:57,153 INFO L128 eAbstractionObserver]: Analyzing ICFG rekh_nxt.2.M1-1.c [2025-03-08 06:10:57,163 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 06:10:57,168 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_nxt.2.M1-1.c that has 19 procedures, 1813 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 06:10:57,246 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 06:10:57,253 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;@16ccf4ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 06:10:57,253 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 06:10:57,262 INFO L276 IsEmpty]: Start isEmpty. Operand has 1813 states, 1021 states have (on average 1.227228207639569) internal successors, (1253), 1150 states have internal predecessors, (1253), 772 states have call successors, (772), 18 states have call predecessors, (772), 18 states have return successors, (772), 673 states have call predecessors, (772), 772 states have call successors, (772) [2025-03-08 06:10:57,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1309 [2025-03-08 06:10:57,315 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:10:57,316 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] [2025-03-08 06:10:57,317 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:10:57,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:10:57,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1123110183, now seen corresponding path program 1 times [2025-03-08 06:10:57,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:10:57,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175640949] [2025-03-08 06:10:57,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:57,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:10:57,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1308 statements into 1 equivalence classes. [2025-03-08 06:10:58,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1308 of 1308 statements. [2025-03-08 06:10:58,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:10:58,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:10:59,201 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 86528 trivial. 0 not checked. [2025-03-08 06:10:59,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:10:59,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175640949] [2025-03-08 06:10:59,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175640949] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:10:59,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79494658] [2025-03-08 06:10:59,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:10:59,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:10:59,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:10:59,207 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:10:59,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 06:11:00,092 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1308 statements into 1 equivalence classes. [2025-03-08 06:11:00,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1308 of 1308 statements. [2025-03-08 06:11:00,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:00,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:00,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 4163 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 06:11:00,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:11:00,636 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 86528 trivial. 0 not checked. [2025-03-08 06:11:00,636 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:11:00,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79494658] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:00,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:11:00,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 06:11:00,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281313241] [2025-03-08 06:11:00,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:00,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 06:11:00,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:00,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 06:11:00,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 06:11:00,670 INFO L87 Difference]: Start difference. First operand has 1813 states, 1021 states have (on average 1.227228207639569) internal successors, (1253), 1150 states have internal predecessors, (1253), 772 states have call successors, (772), 18 states have call predecessors, (772), 18 states have return successors, (772), 673 states have call predecessors, (772), 772 states have call successors, (772) Second operand has 2 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 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) [2025-03-08 06:11:00,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:00,874 INFO L93 Difference]: Finished difference Result 3621 states and 6342 transitions. [2025-03-08 06:11:00,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 06:11:00,876 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 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 1308 [2025-03-08 06:11:00,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:00,897 INFO L225 Difference]: With dead ends: 3621 [2025-03-08 06:11:00,897 INFO L226 Difference]: Without dead ends: 1808 [2025-03-08 06:11:00,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1309 GetRequests, 1309 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 06:11:00,923 INFO L435 NwaCegarLoop]: 2795 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, 2795 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 [2025-03-08 06:11:00,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2795 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:11:00,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2025-03-08 06:11:01,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 1808. [2025-03-08 06:11:01,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1808 states, 1017 states have (on average 1.2261553588987217) internal successors, (1247), 1146 states have internal predecessors, (1247), 772 states have call successors, (772), 18 states have call predecessors, (772), 18 states have return successors, (771), 672 states have call predecessors, (771), 771 states have call successors, (771) [2025-03-08 06:11:01,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 2790 transitions. [2025-03-08 06:11:01,294 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 2790 transitions. Word has length 1308 [2025-03-08 06:11:01,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:01,295 INFO L471 AbstractCegarLoop]: Abstraction has 1808 states and 2790 transitions. [2025-03-08 06:11:01,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 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) [2025-03-08 06:11:01,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 2790 transitions. [2025-03-08 06:11:01,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1309 [2025-03-08 06:11:01,336 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:01,337 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] [2025-03-08 06:11:01,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 06:11:01,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-08 06:11:01,538 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:01,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:01,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1687252404, now seen corresponding path program 1 times [2025-03-08 06:11:01,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:01,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130099618] [2025-03-08 06:11:01,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:01,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:01,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1308 statements into 1 equivalence classes. [2025-03-08 06:11:02,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1308 of 1308 statements. [2025-03-08 06:11:02,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:02,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:02,810 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86944 trivial. 0 not checked. [2025-03-08 06:11:02,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:02,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130099618] [2025-03-08 06:11:02,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130099618] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:02,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:02,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:11:02,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650744913] [2025-03-08 06:11:02,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:02,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:11:02,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:02,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:11:02,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:11:02,817 INFO L87 Difference]: Start difference. First operand 1808 states and 2790 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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) [2025-03-08 06:11:02,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:02,924 INFO L93 Difference]: Finished difference Result 3141 states and 4892 transitions. [2025-03-08 06:11:02,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:11:02,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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 1308 [2025-03-08 06:11:02,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:02,952 INFO L225 Difference]: With dead ends: 3141 [2025-03-08 06:11:02,952 INFO L226 Difference]: Without dead ends: 1808 [2025-03-08 06:11:02,961 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 [2025-03-08 06:11:02,961 INFO L435 NwaCegarLoop]: 2788 mSDtfsCounter, 0 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5566 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 [2025-03-08 06:11:02,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5566 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:11:02,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2025-03-08 06:11:03,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 1808. [2025-03-08 06:11:03,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1808 states, 1017 states have (on average 1.2251720747295969) internal successors, (1246), 1146 states have internal predecessors, (1246), 772 states have call successors, (772), 18 states have call predecessors, (772), 18 states have return successors, (771), 672 states have call predecessors, (771), 771 states have call successors, (771) [2025-03-08 06:11:03,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 2789 transitions. [2025-03-08 06:11:03,260 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 2789 transitions. Word has length 1308 [2025-03-08 06:11:03,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:03,266 INFO L471 AbstractCegarLoop]: Abstraction has 1808 states and 2789 transitions. [2025-03-08 06:11:03,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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) [2025-03-08 06:11:03,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 2789 transitions. [2025-03-08 06:11:03,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1317 [2025-03-08 06:11:03,290 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:03,291 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] [2025-03-08 06:11:03,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 06:11:03,291 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:03,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:03,292 INFO L85 PathProgramCache]: Analyzing trace with hash 172578133, now seen corresponding path program 1 times [2025-03-08 06:11:03,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:03,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577515835] [2025-03-08 06:11:03,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:03,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:03,692 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1316 statements into 1 equivalence classes. [2025-03-08 06:11:03,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1316 of 1316 statements. [2025-03-08 06:11:03,865 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:03,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:06,625 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2025-03-08 06:11:06,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:06,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577515835] [2025-03-08 06:11:06,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577515835] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:06,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:06,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:11:06,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281101928] [2025-03-08 06:11:06,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:06,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:11:06,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:06,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:11:06,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:11:06,629 INFO L87 Difference]: Start difference. First operand 1808 states and 2789 transitions. Second operand has 5 states, 4 states have (on average 65.75) internal successors, (263), 5 states have internal predecessors, (263), 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) [2025-03-08 06:11:10,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:10,354 INFO L93 Difference]: Finished difference Result 3381 states and 5245 transitions. [2025-03-08 06:11:10,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:11:10,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 65.75) internal successors, (263), 5 states have internal predecessors, (263), 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 1316 [2025-03-08 06:11:10,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:10,372 INFO L225 Difference]: With dead ends: 3381 [2025-03-08 06:11:10,372 INFO L226 Difference]: Without dead ends: 2048 [2025-03-08 06:11:10,381 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 [2025-03-08 06:11:10,382 INFO L435 NwaCegarLoop]: 3117 mSDtfsCounter, 3870 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 1738 mSolverCounterSat, 944 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3870 SdHoareTripleChecker+Valid, 4546 SdHoareTripleChecker+Invalid, 2682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 944 IncrementalHoareTripleChecker+Valid, 1738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:10,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3870 Valid, 4546 Invalid, 2682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [944 Valid, 1738 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2025-03-08 06:11:10,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2025-03-08 06:11:10,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 2048. [2025-03-08 06:11:10,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2048 states, 1195 states have (on average 1.2426778242677825) internal successors, (1485), 1324 states have internal predecessors, (1485), 829 states have call successors, (829), 23 states have call predecessors, (829), 23 states have return successors, (828), 729 states have call predecessors, (828), 828 states have call successors, (828) [2025-03-08 06:11:10,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 3142 transitions. [2025-03-08 06:11:10,640 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 3142 transitions. Word has length 1316 [2025-03-08 06:11:10,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:10,642 INFO L471 AbstractCegarLoop]: Abstraction has 2048 states and 3142 transitions. [2025-03-08 06:11:10,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 65.75) internal successors, (263), 5 states have internal predecessors, (263), 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) [2025-03-08 06:11:10,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 3142 transitions. [2025-03-08 06:11:10,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1321 [2025-03-08 06:11:10,656 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:10,657 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] [2025-03-08 06:11:10,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 06:11:10,658 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:10,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:10,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1924949528, now seen corresponding path program 1 times [2025-03-08 06:11:10,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:10,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496711000] [2025-03-08 06:11:10,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:10,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:10,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1320 statements into 1 equivalence classes. [2025-03-08 06:11:11,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1320 of 1320 statements. [2025-03-08 06:11:11,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:11,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2025-03-08 06:11:12,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:12,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496711000] [2025-03-08 06:11:12,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496711000] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:12,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:12,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:11:12,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184477672] [2025-03-08 06:11:12,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:12,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:11:12,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:12,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:11:12,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:11:12,097 INFO L87 Difference]: Start difference. First operand 2048 states and 3142 transitions. Second operand has 5 states, 4 states have (on average 66.25) internal successors, (265), 5 states have internal predecessors, (265), 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) [2025-03-08 06:11:15,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:15,366 INFO L93 Difference]: Finished difference Result 3617 states and 5591 transitions. [2025-03-08 06:11:15,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:11:15,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 66.25) internal successors, (265), 5 states have internal predecessors, (265), 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 1320 [2025-03-08 06:11:15,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:15,386 INFO L225 Difference]: With dead ends: 3617 [2025-03-08 06:11:15,386 INFO L226 Difference]: Without dead ends: 2044 [2025-03-08 06:11:15,395 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 [2025-03-08 06:11:15,397 INFO L435 NwaCegarLoop]: 3110 mSDtfsCounter, 3101 mSDsluCounter, 2102 mSDsCounter, 0 mSdLazyCounter, 2509 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3101 SdHoareTripleChecker+Valid, 5212 SdHoareTripleChecker+Invalid, 2539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:15,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3101 Valid, 5212 Invalid, 2539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2509 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2025-03-08 06:11:15,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2025-03-08 06:11:15,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 2044. [2025-03-08 06:11:15,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2044 states, 1193 states have (on average 1.2414082145850796) internal successors, (1481), 1322 states have internal predecessors, (1481), 827 states have call successors, (827), 23 states have call predecessors, (827), 23 states have return successors, (826), 727 states have call predecessors, (826), 826 states have call successors, (826) [2025-03-08 06:11:15,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2044 states to 2044 states and 3134 transitions. [2025-03-08 06:11:15,666 INFO L78 Accepts]: Start accepts. Automaton has 2044 states and 3134 transitions. Word has length 1320 [2025-03-08 06:11:15,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:15,669 INFO L471 AbstractCegarLoop]: Abstraction has 2044 states and 3134 transitions. [2025-03-08 06:11:15,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 66.25) internal successors, (265), 5 states have internal predecessors, (265), 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) [2025-03-08 06:11:15,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2044 states and 3134 transitions. [2025-03-08 06:11:15,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1322 [2025-03-08 06:11:15,694 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:15,694 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] [2025-03-08 06:11:15,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 06:11:15,694 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:15,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:15,695 INFO L85 PathProgramCache]: Analyzing trace with hash 379549914, now seen corresponding path program 1 times [2025-03-08 06:11:15,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:15,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532813259] [2025-03-08 06:11:15,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:15,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:16,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1321 statements into 1 equivalence classes. [2025-03-08 06:11:16,388 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1321 of 1321 statements. [2025-03-08 06:11:16,388 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:16,388 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:18,345 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2025-03-08 06:11:18,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:18,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532813259] [2025-03-08 06:11:18,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532813259] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:18,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:18,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:11:18,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414109580] [2025-03-08 06:11:18,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:18,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:11:18,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:18,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:11:18,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:11:18,353 INFO L87 Difference]: Start difference. First operand 2044 states and 3134 transitions. Second operand has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 5 states have internal predecessors, (266), 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) [2025-03-08 06:11:22,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:22,259 INFO L93 Difference]: Finished difference Result 3524 states and 5436 transitions. [2025-03-08 06:11:22,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:11:22,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 5 states have internal predecessors, (266), 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 1321 [2025-03-08 06:11:22,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:22,281 INFO L225 Difference]: With dead ends: 3524 [2025-03-08 06:11:22,281 INFO L226 Difference]: Without dead ends: 3505 [2025-03-08 06:11:22,283 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 [2025-03-08 06:11:22,284 INFO L435 NwaCegarLoop]: 2777 mSDtfsCounter, 4186 mSDsluCounter, 6526 mSDsCounter, 0 mSdLazyCounter, 1679 mSolverCounterSat, 2009 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4281 SdHoareTripleChecker+Valid, 9303 SdHoareTripleChecker+Invalid, 3688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2009 IncrementalHoareTripleChecker+Valid, 1679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:22,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4281 Valid, 9303 Invalid, 3688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2009 Valid, 1679 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-03-08 06:11:22,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3505 states. [2025-03-08 06:11:22,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3505 to 3480. [2025-03-08 06:11:22,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3480 states, 2055 states have (on average 1.264720194647202) internal successors, (2599), 2306 states have internal predecessors, (2599), 1381 states have call successors, (1381), 42 states have call predecessors, (1381), 43 states have return successors, (1403), 1185 states have call predecessors, (1403), 1380 states have call successors, (1403) [2025-03-08 06:11:22,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3480 states to 3480 states and 5383 transitions. [2025-03-08 06:11:22,635 INFO L78 Accepts]: Start accepts. Automaton has 3480 states and 5383 transitions. Word has length 1321 [2025-03-08 06:11:22,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:22,636 INFO L471 AbstractCegarLoop]: Abstraction has 3480 states and 5383 transitions. [2025-03-08 06:11:22,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 5 states have internal predecessors, (266), 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) [2025-03-08 06:11:22,637 INFO L276 IsEmpty]: Start isEmpty. Operand 3480 states and 5383 transitions. [2025-03-08 06:11:22,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1380 [2025-03-08 06:11:22,651 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:22,652 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:11:22,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 06:11:22,652 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:22,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:22,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1447459554, now seen corresponding path program 1 times [2025-03-08 06:11:22,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:22,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764787471] [2025-03-08 06:11:22,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:22,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:22,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1379 statements into 1 equivalence classes. [2025-03-08 06:11:23,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1379 of 1379 statements. [2025-03-08 06:11:23,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:23,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:24,575 INFO L134 CoverageAnalysis]: Checked inductivity of 87793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87793 trivial. 0 not checked. [2025-03-08 06:11:24,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:24,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764787471] [2025-03-08 06:11:24,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764787471] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:24,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:24,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:11:24,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603798329] [2025-03-08 06:11:24,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:24,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:11:24,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:24,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:11:24,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:11:24,578 INFO L87 Difference]: Start difference. First operand 3480 states and 5383 transitions. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 3 states have call successors, (221), 2 states have call predecessors, (221), 3 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2025-03-08 06:11:26,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:26,062 INFO L93 Difference]: Finished difference Result 7687 states and 11982 transitions. [2025-03-08 06:11:26,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:11:26,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 3 states have call successors, (221), 2 states have call predecessors, (221), 3 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) Word has length 1379 [2025-03-08 06:11:26,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:26,103 INFO L225 Difference]: With dead ends: 7687 [2025-03-08 06:11:26,104 INFO L226 Difference]: Without dead ends: 4682 [2025-03-08 06:11:26,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:11:26,121 INFO L435 NwaCegarLoop]: 3089 mSDtfsCounter, 2953 mSDsluCounter, 4743 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2953 SdHoareTripleChecker+Valid, 7832 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1134 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:26,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2953 Valid, 7832 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1134 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-08 06:11:26,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4682 states. [2025-03-08 06:11:26,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4682 to 4678. [2025-03-08 06:11:26,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4678 states, 2787 states have (on average 1.2809472551130248) internal successors, (3570), 3142 states have internal predecessors, (3570), 1829 states have call successors, (1829), 54 states have call predecessors, (1829), 61 states have return successors, (1861), 1537 states have call predecessors, (1861), 1828 states have call successors, (1861) [2025-03-08 06:11:26,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4678 states to 4678 states and 7260 transitions. [2025-03-08 06:11:26,714 INFO L78 Accepts]: Start accepts. Automaton has 4678 states and 7260 transitions. Word has length 1379 [2025-03-08 06:11:26,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:26,716 INFO L471 AbstractCegarLoop]: Abstraction has 4678 states and 7260 transitions. [2025-03-08 06:11:26,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 3 states have call successors, (221), 2 states have call predecessors, (221), 3 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2025-03-08 06:11:26,717 INFO L276 IsEmpty]: Start isEmpty. Operand 4678 states and 7260 transitions. [2025-03-08 06:11:26,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1384 [2025-03-08 06:11:26,744 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:26,744 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:11:26,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 06:11:26,745 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:26,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:26,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1076480186, now seen corresponding path program 1 times [2025-03-08 06:11:26,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:26,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558349967] [2025-03-08 06:11:26,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:26,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:27,132 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1383 statements into 1 equivalence classes. [2025-03-08 06:11:27,229 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1383 of 1383 statements. [2025-03-08 06:11:27,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:27,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:28,250 INFO L134 CoverageAnalysis]: Checked inductivity of 87793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87793 trivial. 0 not checked. [2025-03-08 06:11:28,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:28,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558349967] [2025-03-08 06:11:28,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558349967] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:28,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:28,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:11:28,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139760631] [2025-03-08 06:11:28,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:28,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:11:28,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:28,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:11:28,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:11:28,254 INFO L87 Difference]: Start difference. First operand 4678 states and 7260 transitions. Second operand has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 3 states have call successors, (222), 2 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2025-03-08 06:11:29,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:29,615 INFO L93 Difference]: Finished difference Result 9460 states and 14758 transitions. [2025-03-08 06:11:29,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:11:29,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 3 states have call successors, (222), 2 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) Word has length 1383 [2025-03-08 06:11:29,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:29,652 INFO L225 Difference]: With dead ends: 9460 [2025-03-08 06:11:29,652 INFO L226 Difference]: Without dead ends: 5257 [2025-03-08 06:11:29,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:11:29,669 INFO L435 NwaCegarLoop]: 3040 mSDtfsCounter, 2972 mSDsluCounter, 4196 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2972 SdHoareTripleChecker+Valid, 7236 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1145 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:29,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2972 Valid, 7236 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1145 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-08 06:11:29,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5257 states. [2025-03-08 06:11:30,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5257 to 5256. [2025-03-08 06:11:30,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5256 states, 3142 states have (on average 1.2851686823679185) internal successors, (4038), 3547 states have internal predecessors, (4038), 2044 states have call successors, (2044), 60 states have call predecessors, (2044), 69 states have return successors, (2080), 1704 states have call predecessors, (2080), 2043 states have call successors, (2080) [2025-03-08 06:11:30,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5256 states to 5256 states and 8162 transitions. [2025-03-08 06:11:30,302 INFO L78 Accepts]: Start accepts. Automaton has 5256 states and 8162 transitions. Word has length 1383 [2025-03-08 06:11:30,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:30,303 INFO L471 AbstractCegarLoop]: Abstraction has 5256 states and 8162 transitions. [2025-03-08 06:11:30,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 3 states have call successors, (222), 2 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2025-03-08 06:11:30,304 INFO L276 IsEmpty]: Start isEmpty. Operand 5256 states and 8162 transitions. [2025-03-08 06:11:30,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1385 [2025-03-08 06:11:30,317 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:30,318 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:11:30,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 06:11:30,318 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:30,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:30,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1178285154, now seen corresponding path program 1 times [2025-03-08 06:11:30,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:30,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078191560] [2025-03-08 06:11:30,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:30,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:30,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1384 statements into 1 equivalence classes. [2025-03-08 06:11:30,721 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1384 of 1384 statements. [2025-03-08 06:11:30,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:30,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:31,765 INFO L134 CoverageAnalysis]: Checked inductivity of 87793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87793 trivial. 0 not checked. [2025-03-08 06:11:31,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:31,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078191560] [2025-03-08 06:11:31,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078191560] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:31,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:11:31,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:11:31,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903952848] [2025-03-08 06:11:31,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:31,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:11:31,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:31,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:11:31,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:11:31,769 INFO L87 Difference]: Start difference. First operand 5256 states and 8162 transitions. Second operand has 5 states, 5 states have (on average 60.8) internal successors, (304), 5 states have internal predecessors, (304), 3 states have call successors, (222), 2 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2025-03-08 06:11:32,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:32,063 INFO L93 Difference]: Finished difference Result 10912 states and 17004 transitions. [2025-03-08 06:11:32,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:11:32,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.8) internal successors, (304), 5 states have internal predecessors, (304), 3 states have call successors, (222), 2 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) Word has length 1384 [2025-03-08 06:11:32,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:32,108 INFO L225 Difference]: With dead ends: 10912 [2025-03-08 06:11:32,108 INFO L226 Difference]: Without dead ends: 6131 [2025-03-08 06:11:32,126 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:11:32,127 INFO L435 NwaCegarLoop]: 2936 mSDtfsCounter, 2731 mSDsluCounter, 4287 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2731 SdHoareTripleChecker+Valid, 7223 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:32,127 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2731 Valid, 7223 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:11:32,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2025-03-08 06:11:32,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 6128. [2025-03-08 06:11:32,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6128 states, 3707 states have (on average 1.292689506339358) internal successors, (4792), 4166 states have internal predecessors, (4792), 2335 states have call successors, (2335), 72 states have call predecessors, (2335), 85 states have return successors, (2377), 1947 states have call predecessors, (2377), 2334 states have call successors, (2377) [2025-03-08 06:11:32,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6128 states to 6128 states and 9504 transitions. [2025-03-08 06:11:33,006 INFO L78 Accepts]: Start accepts. Automaton has 6128 states and 9504 transitions. Word has length 1384 [2025-03-08 06:11:33,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:33,007 INFO L471 AbstractCegarLoop]: Abstraction has 6128 states and 9504 transitions. [2025-03-08 06:11:33,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.8) internal successors, (304), 5 states have internal predecessors, (304), 3 states have call successors, (222), 2 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2025-03-08 06:11:33,008 INFO L276 IsEmpty]: Start isEmpty. Operand 6128 states and 9504 transitions. [2025-03-08 06:11:33,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1385 [2025-03-08 06:11:33,021 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:33,022 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:11:33,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 06:11:33,022 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:33,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:33,023 INFO L85 PathProgramCache]: Analyzing trace with hash 452391904, now seen corresponding path program 1 times [2025-03-08 06:11:33,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:33,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362100604] [2025-03-08 06:11:33,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:33,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:33,348 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1384 statements into 1 equivalence classes. [2025-03-08 06:11:33,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1384 of 1384 statements. [2025-03-08 06:11:33,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:33,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:34,540 INFO L134 CoverageAnalysis]: Checked inductivity of 87796 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 87792 trivial. 0 not checked. [2025-03-08 06:11:34,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:34,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362100604] [2025-03-08 06:11:34,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362100604] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:11:34,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724980637] [2025-03-08 06:11:34,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:34,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:11:34,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:11:34,543 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:11:34,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 06:11:35,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1384 statements into 1 equivalence classes. [2025-03-08 06:11:35,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1384 of 1384 statements. [2025-03-08 06:11:35,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:35,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:35,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 4509 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 06:11:35,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:11:35,894 INFO L134 CoverageAnalysis]: Checked inductivity of 87796 backedges. 1668 proven. 0 refuted. 0 times theorem prover too weak. 86128 trivial. 0 not checked. [2025-03-08 06:11:35,894 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:11:35,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724980637] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:35,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:11:35,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-03-08 06:11:35,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692775914] [2025-03-08 06:11:35,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:35,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:11:35,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:35,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:11:35,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:11:35,897 INFO L87 Difference]: Start difference. First operand 6128 states and 9504 transitions. Second operand has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2025-03-08 06:11:38,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:38,065 INFO L93 Difference]: Finished difference Result 11785 states and 18349 transitions. [2025-03-08 06:11:38,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:11:38,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) Word has length 1384 [2025-03-08 06:11:38,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:38,102 INFO L225 Difference]: With dead ends: 11785 [2025-03-08 06:11:38,102 INFO L226 Difference]: Without dead ends: 6132 [2025-03-08 06:11:38,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1390 GetRequests, 1383 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:11:38,122 INFO L435 NwaCegarLoop]: 3226 mSDtfsCounter, 1995 mSDsluCounter, 4680 mSDsCounter, 0 mSdLazyCounter, 2315 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1995 SdHoareTripleChecker+Valid, 7906 SdHoareTripleChecker+Invalid, 2340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:38,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1995 Valid, 7906 Invalid, 2340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2315 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-08 06:11:38,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6132 states. [2025-03-08 06:11:38,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6132 to 6128. [2025-03-08 06:11:38,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6128 states, 3707 states have (on average 1.2921499865120043) internal successors, (4790), 4166 states have internal predecessors, (4790), 2335 states have call successors, (2335), 72 states have call predecessors, (2335), 85 states have return successors, (2377), 1947 states have call predecessors, (2377), 2334 states have call successors, (2377) [2025-03-08 06:11:38,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6128 states to 6128 states and 9502 transitions. [2025-03-08 06:11:38,717 INFO L78 Accepts]: Start accepts. Automaton has 6128 states and 9502 transitions. Word has length 1384 [2025-03-08 06:11:38,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:38,718 INFO L471 AbstractCegarLoop]: Abstraction has 6128 states and 9502 transitions. [2025-03-08 06:11:38,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 3 states have call successors, (222), 3 states have call predecessors, (222), 3 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2025-03-08 06:11:38,718 INFO L276 IsEmpty]: Start isEmpty. Operand 6128 states and 9502 transitions. [2025-03-08 06:11:38,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1393 [2025-03-08 06:11:38,732 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:38,732 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:11:38,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 06:11:38,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-03-08 06:11:38,933 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:38,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:38,934 INFO L85 PathProgramCache]: Analyzing trace with hash -948713536, now seen corresponding path program 1 times [2025-03-08 06:11:38,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:38,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609684107] [2025-03-08 06:11:38,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:38,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:39,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1392 statements into 1 equivalence classes. [2025-03-08 06:11:39,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1392 of 1392 statements. [2025-03-08 06:11:39,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:39,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:40,362 INFO L134 CoverageAnalysis]: Checked inductivity of 87800 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 87794 trivial. 0 not checked. [2025-03-08 06:11:40,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:40,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609684107] [2025-03-08 06:11:40,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609684107] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:11:40,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702110960] [2025-03-08 06:11:40,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:40,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:11:40,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:11:40,365 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:11:40,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 06:11:41,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1392 statements into 1 equivalence classes. [2025-03-08 06:11:41,562 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1392 of 1392 statements. [2025-03-08 06:11:41,562 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:41,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:41,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 4533 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 06:11:41,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:11:41,725 INFO L134 CoverageAnalysis]: Checked inductivity of 87800 backedges. 1666 proven. 0 refuted. 0 times theorem prover too weak. 86134 trivial. 0 not checked. [2025-03-08 06:11:41,725 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:11:41,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702110960] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:41,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:11:41,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-03-08 06:11:41,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147821618] [2025-03-08 06:11:41,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:41,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:11:41,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:41,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:11:41,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:11:41,728 INFO L87 Difference]: Start difference. First operand 6128 states and 9502 transitions. Second operand has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 3 states have call successors, (223), 3 states have call predecessors, (223), 3 states have return successors, (222), 3 states have call predecessors, (222), 3 states have call successors, (222) [2025-03-08 06:11:43,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:43,909 INFO L93 Difference]: Finished difference Result 11660 states and 18165 transitions. [2025-03-08 06:11:43,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:11:43,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 3 states have call successors, (223), 3 states have call predecessors, (223), 3 states have return successors, (222), 3 states have call predecessors, (222), 3 states have call successors, (222) Word has length 1392 [2025-03-08 06:11:43,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:43,940 INFO L225 Difference]: With dead ends: 11660 [2025-03-08 06:11:43,941 INFO L226 Difference]: Without dead ends: 6007 [2025-03-08 06:11:43,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1398 GetRequests, 1391 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:11:43,958 INFO L435 NwaCegarLoop]: 3028 mSDtfsCounter, 2005 mSDsluCounter, 3986 mSDsCounter, 0 mSdLazyCounter, 2308 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2005 SdHoareTripleChecker+Valid, 7014 SdHoareTripleChecker+Invalid, 2335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:43,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2005 Valid, 7014 Invalid, 2335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2308 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-08 06:11:43,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6007 states. [2025-03-08 06:11:44,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6007 to 6006. [2025-03-08 06:11:44,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6006 states, 3618 states have (on average 1.2899391929242676) internal successors, (4667), 4077 states have internal predecessors, (4667), 2303 states have call successors, (2303), 71 states have call predecessors, (2303), 84 states have return successors, (2345), 1915 states have call predecessors, (2345), 2302 states have call successors, (2345) [2025-03-08 06:11:44,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6006 states to 6006 states and 9315 transitions. [2025-03-08 06:11:44,661 INFO L78 Accepts]: Start accepts. Automaton has 6006 states and 9315 transitions. Word has length 1392 [2025-03-08 06:11:44,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:44,663 INFO L471 AbstractCegarLoop]: Abstraction has 6006 states and 9315 transitions. [2025-03-08 06:11:44,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.8) internal successors, (309), 5 states have internal predecessors, (309), 3 states have call successors, (223), 3 states have call predecessors, (223), 3 states have return successors, (222), 3 states have call predecessors, (222), 3 states have call successors, (222) [2025-03-08 06:11:44,664 INFO L276 IsEmpty]: Start isEmpty. Operand 6006 states and 9315 transitions. [2025-03-08 06:11:44,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1395 [2025-03-08 06:11:44,679 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:44,679 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:11:44,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 06:11:44,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:11:44,884 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:44,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:44,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1771858982, now seen corresponding path program 1 times [2025-03-08 06:11:44,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:44,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758172361] [2025-03-08 06:11:44,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:44,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:45,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1394 statements into 1 equivalence classes. [2025-03-08 06:11:45,297 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1394 of 1394 statements. [2025-03-08 06:11:45,298 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:45,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:46,395 INFO L134 CoverageAnalysis]: Checked inductivity of 87801 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 87795 trivial. 0 not checked. [2025-03-08 06:11:46,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:11:46,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758172361] [2025-03-08 06:11:46,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758172361] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:11:46,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775236991] [2025-03-08 06:11:46,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:46,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:11:46,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:11:46,398 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:11:46,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 06:11:47,453 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1394 statements into 1 equivalence classes. [2025-03-08 06:11:47,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1394 of 1394 statements. [2025-03-08 06:11:47,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:11:47,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:11:47,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 4537 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 06:11:47,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:11:47,936 INFO L134 CoverageAnalysis]: Checked inductivity of 87801 backedges. 1667 proven. 0 refuted. 0 times theorem prover too weak. 86134 trivial. 0 not checked. [2025-03-08 06:11:47,936 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:11:47,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775236991] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:11:47,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:11:47,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2025-03-08 06:11:47,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352000587] [2025-03-08 06:11:47,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:11:47,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:11:47,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:11:47,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:11:47,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:11:47,939 INFO L87 Difference]: Start difference. First operand 6006 states and 9315 transitions. Second operand has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 3 states have call successors, (223), 3 states have call predecessors, (223), 3 states have return successors, (222), 3 states have call predecessors, (222), 3 states have call successors, (222) [2025-03-08 06:11:50,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:11:50,217 INFO L93 Difference]: Finished difference Result 11430 states and 17804 transitions. [2025-03-08 06:11:50,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:11:50,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 3 states have call successors, (223), 3 states have call predecessors, (223), 3 states have return successors, (222), 3 states have call predecessors, (222), 3 states have call successors, (222) Word has length 1394 [2025-03-08 06:11:50,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:11:50,254 INFO L225 Difference]: With dead ends: 11430 [2025-03-08 06:11:50,255 INFO L226 Difference]: Without dead ends: 5899 [2025-03-08 06:11:50,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1399 GetRequests, 1394 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:11:50,276 INFO L435 NwaCegarLoop]: 2789 mSDtfsCounter, 2707 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 1620 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2707 SdHoareTripleChecker+Valid, 5319 SdHoareTripleChecker+Invalid, 1648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:11:50,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2707 Valid, 5319 Invalid, 1648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1620 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-08 06:11:50,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5899 states. [2025-03-08 06:11:50,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5899 to 5896. [2025-03-08 06:11:50,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5896 states, 3537 states have (on average 1.2878145320893413) internal successors, (4555), 3996 states have internal predecessors, (4555), 2275 states have call successors, (2275), 70 states have call predecessors, (2275), 83 states have return successors, (2317), 1887 states have call predecessors, (2317), 2274 states have call successors, (2317) [2025-03-08 06:11:50,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5896 states to 5896 states and 9147 transitions. [2025-03-08 06:11:50,998 INFO L78 Accepts]: Start accepts. Automaton has 5896 states and 9147 transitions. Word has length 1394 [2025-03-08 06:11:50,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:11:51,000 INFO L471 AbstractCegarLoop]: Abstraction has 5896 states and 9147 transitions. [2025-03-08 06:11:51,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 3 states have call successors, (223), 3 states have call predecessors, (223), 3 states have return successors, (222), 3 states have call predecessors, (222), 3 states have call successors, (222) [2025-03-08 06:11:51,000 INFO L276 IsEmpty]: Start isEmpty. Operand 5896 states and 9147 transitions. [2025-03-08 06:11:51,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1395 [2025-03-08 06:11:51,013 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:11:51,013 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:11:51,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-08 06:11:51,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:11:51,214 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 06:11:51,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:11:51,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1989683920, now seen corresponding path program 1 times [2025-03-08 06:11:51,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:11:51,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446563874] [2025-03-08 06:11:51,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:11:51,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:11:51,527 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1394 statements into 1 equivalence classes.