./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash efc4c52a722d63f9628a5791b5e97bc661a62d89deb074bdb4352c608e6a3dd1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 16:24:13,623 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 16:24:13,693 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 16:24:13,698 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 16:24:13,698 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 16:24:13,720 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 16:24:13,721 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 16:24:13,721 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 16:24:13,722 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 16:24:13,722 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 16:24:13,722 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 16:24:13,722 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 16:24:13,723 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 16:24:13,723 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 16:24:13,723 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 16:24:13,723 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 16:24:13,723 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 16:24:13,723 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 16:24:13,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 16:24:13,724 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 16:24:13,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 16:24:13,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 16:24:13,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 16:24:13,724 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 16:24:13,724 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 16:24:13,724 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 16:24:13,724 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 16:24:13,725 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 16:24:13,725 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 16:24:13,725 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 16:24:13,725 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 16:24:13,725 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 16:24:13,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:24:13,726 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 16:24:13,726 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 16:24:13,726 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 16:24:13,726 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 16:24:13,726 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 16:24:13,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 16:24:13,726 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 16:24:13,726 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 16:24:13,727 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 16:24:13,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 16:24:13,727 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efc4c52a722d63f9628a5791b5e97bc661a62d89deb074bdb4352c608e6a3dd1 [2025-02-05 16:24:14,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 16:24:14,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 16:24:14,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 16:24:14,072 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 16:24:14,073 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 16:24:14,074 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c [2025-02-05 16:24:15,561 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4cb561df6/857f5c5cd6c04a5bb3a6a01715b385ad/FLAGf037e0580 [2025-02-05 16:24:15,986 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 16:24:15,988 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c [2025-02-05 16:24:16,018 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4cb561df6/857f5c5cd6c04a5bb3a6a01715b385ad/FLAGf037e0580 [2025-02-05 16:24:16,038 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4cb561df6/857f5c5cd6c04a5bb3a6a01715b385ad [2025-02-05 16:24:16,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 16:24:16,041 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 16:24:16,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 16:24:16,043 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 16:24:16,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 16:24:16,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:24:16" (1/1) ... [2025-02-05 16:24:16,051 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f93970b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:16, skipping insertion in model container [2025-02-05 16:24:16,051 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:24:16" (1/1) ... [2025-02-05 16:24:16,111 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 16:24:16,321 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c[1806,1819] [2025-02-05 16:24:16,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:24:16,946 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 16:24:16,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.bug4.i","-S") [39] [2025-02-05 16:24:16,961 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c[1806,1819] [2025-02-05 16:24:17,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:24:17,312 INFO L204 MainTranslator]: Completed translation [2025-02-05 16:24:17,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:17 WrapperNode [2025-02-05 16:24:17,313 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 16:24:17,314 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 16:24:17,314 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 16:24:17,315 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 16:24:17,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:17" (1/1) ... [2025-02-05 16:24:17,415 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:17" (1/1) ... [2025-02-05 16:24:17,801 INFO L138 Inliner]: procedures = 70, calls = 5727, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 12675 [2025-02-05 16:24:17,802 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 16:24:17,803 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 16:24:17,803 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 16:24:17,803 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 16:24:17,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:17" (1/1) ... [2025-02-05 16:24:17,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:17" (1/1) ... [2025-02-05 16:24:17,874 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:17" (1/1) ... [2025-02-05 16:24:17,988 INFO L175 MemorySlicer]: Split 4157 memory accesses to 27 slices as follows [2, 2, 7, 8, 4, 2, 379, 455, 113, 113, 180, 203, 180, 203, 180, 203, 180, 203, 180, 8, 203, 180, 203, 180, 203, 180, 203]. 11 percent of accesses are in the largest equivalence class. The 544 initializations are split as follows [0, 0, 2, 0, 0, 2, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 0, 27, 27, 27, 27, 27, 27, 27]. The 553 writes are split as follows [1, 1, 3, 4, 0, 0, 27, 27, 27, 27, 28, 26, 28, 26, 28, 26, 28, 26, 28, 4, 26, 28, 26, 28, 26, 28, 26]. [2025-02-05 16:24:17,988 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:17" (1/1) ... [2025-02-05 16:24:17,988 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:17" (1/1) ... [2025-02-05 16:24:18,213 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:17" (1/1) ... [2025-02-05 16:24:18,233 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:17" (1/1) ... [2025-02-05 16:24:18,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:17" (1/1) ... [2025-02-05 16:24:18,303 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:17" (1/1) ... [2025-02-05 16:24:18,368 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 16:24:18,370 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 16:24:18,370 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 16:24:18,370 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 16:24:18,371 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:17" (1/1) ... [2025-02-05 16:24:18,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:24:18,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:24:18,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 16:24:18,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 16:24:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 16:24:18,429 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2025-02-05 16:24:18,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2025-02-05 16:24:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-02-05 16:24:18,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-02-05 16:24:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2025-02-05 16:24:18,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2025-02-05 16:24:18,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-05 16:24:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-02-05 16:24:18,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-02-05 16:24:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-02-05 16:24:18,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-02-05 16:24:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2025-02-05 16:24:18,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2025-02-05 16:24:18,431 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2025-02-05 16:24:18,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2025-02-05 16:24:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-05 16:24:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-05 16:24:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-05 16:24:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-05 16:24:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-05 16:24:18,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-05 16:24:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-05 16:24:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-05 16:24:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-02-05 16:24:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-02-05 16:24:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-02-05 16:24:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-02-05 16:24:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-02-05 16:24:18,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-02-05 16:24:18,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-02-05 16:24:18,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-02-05 16:24:18,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-02-05 16:24:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-02-05 16:24:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-02-05 16:24:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-02-05 16:24:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2025-02-05 16:24:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2025-02-05 16:24:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2025-02-05 16:24:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2025-02-05 16:24:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2025-02-05 16:24:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2025-02-05 16:24:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2025-02-05 16:24:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-02-05 16:24:18,437 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-02-05 16:24:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2025-02-05 16:24:18,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2025-02-05 16:24:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2025-02-05 16:24:18,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2025-02-05 16:24:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2025-02-05 16:24:18,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2025-02-05 16:24:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-02-05 16:24:18,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-02-05 16:24:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-02-05 16:24:18,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-02-05 16:24:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-02-05 16:24:18,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-02-05 16:24:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-05 16:24:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-05 16:24:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-05 16:24:18,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2025-02-05 16:24:18,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2025-02-05 16:24:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2025-02-05 16:24:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-02-05 16:24:18,441 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-02-05 16:24:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2025-02-05 16:24:18,441 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2025-02-05 16:24:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2025-02-05 16:24:18,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2025-02-05 16:24:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2025-02-05 16:24:18,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2025-02-05 16:24:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-05 16:24:18,441 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-05 16:24:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 16:24:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-05 16:24:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-05 16:24:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-05 16:24:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 16:24:18,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 16:24:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2025-02-05 16:24:18,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2025-02-05 16:24:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-02-05 16:24:18,443 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-02-05 16:24:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2025-02-05 16:24:18,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2025-02-05 16:24:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2025-02-05 16:24:18,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2025-02-05 16:24:19,294 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 16:24:19,296 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 16:24:19,739 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L235: call ULTIMATE.dealloc(OSEK_Task_ts1_~#pwm_l~0#1.base, OSEK_Task_ts1_~#pwm_l~0#1.offset);havoc OSEK_Task_ts1_~#pwm_l~0#1.base, OSEK_Task_ts1_~#pwm_l~0#1.offset;call ULTIMATE.dealloc(OSEK_Task_ts1_~#pwm_r~0#1.base, OSEK_Task_ts1_~#pwm_r~0#1.offset);havoc OSEK_Task_ts1_~#pwm_r~0#1.base, OSEK_Task_ts1_~#pwm_r~0#1.offset; [2025-02-05 16:24:19,739 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L96: call ULTIMATE.dealloc(balance_control_~#tmp~0#1.base, balance_control_~#tmp~0#1.offset);havoc balance_control_~#tmp~0#1.base, balance_control_~#tmp~0#1.offset;call ULTIMATE.dealloc(balance_control_~#tmp_theta_0~0#1.base, balance_control_~#tmp_theta_0~0#1.offset);havoc balance_control_~#tmp_theta_0~0#1.base, balance_control_~#tmp_theta_0~0#1.offset; [2025-02-05 16:24:30,738 INFO L? ?]: Removed 505 outVars from TransFormulas that were not future-live. [2025-02-05 16:24:30,738 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 16:24:30,813 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 16:24:30,813 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 16:24:30,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:24:30 BoogieIcfgContainer [2025-02-05 16:24:30,814 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 16:24:30,816 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 16:24:30,816 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 16:24:30,821 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 16:24:30,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 04:24:16" (1/3) ... [2025-02-05 16:24:30,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f3e612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:24:30, skipping insertion in model container [2025-02-05 16:24:30,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:24:17" (2/3) ... [2025-02-05 16:24:30,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f3e612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:24:30, skipping insertion in model container [2025-02-05 16:24:30,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:24:30" (3/3) ... [2025-02-05 16:24:30,825 INFO L128 eAbstractionObserver]: Analyzing ICFG rekh_aso.4.M1.c [2025-02-05 16:24:30,841 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 16:24:30,845 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_aso.4.M1.c that has 24 procedures, 3445 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 16:24:31,020 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 16:24:31,032 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;@54680d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 16:24:31,034 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 16:24:31,051 INFO L276 IsEmpty]: Start isEmpty. Operand has 3445 states, 1916 states have (on average 1.1758872651356993) internal successors, (2253), 2045 states have internal predecessors, (2253), 1504 states have call successors, (1504), 23 states have call predecessors, (1504), 23 states have return successors, (1504), 1404 states have call predecessors, (1504), 1504 states have call successors, (1504) [2025-02-05 16:24:31,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1377 [2025-02-05 16:24:31,147 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:31,149 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:24:31,150 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:31,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:31,157 INFO L85 PathProgramCache]: Analyzing trace with hash -147336675, now seen corresponding path program 1 times [2025-02-05 16:24:31,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:31,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242067126] [2025-02-05 16:24:31,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:31,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:33,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1376 statements into 1 equivalence classes. [2025-02-05 16:24:33,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1376 of 1376 statements. [2025-02-05 16:24:33,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:33,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:34,765 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 0 proven. 418 refuted. 0 times theorem prover too weak. 87362 trivial. 0 not checked. [2025-02-05 16:24:34,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:34,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242067126] [2025-02-05 16:24:34,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242067126] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:24:34,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572174404] [2025-02-05 16:24:34,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:34,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:24:34,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:24:34,772 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 16:24:34,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-05 16:24:37,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1376 statements into 1 equivalence classes. [2025-02-05 16:24:37,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1376 of 1376 statements. [2025-02-05 16:24:37,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:37,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:37,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 5794 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 16:24:38,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:24:38,124 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 87362 trivial. 0 not checked. [2025-02-05 16:24:38,125 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 16:24:38,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572174404] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:38,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 16:24:38,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-05 16:24:38,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206299494] [2025-02-05 16:24:38,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:38,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 16:24:38,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:38,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 16:24:38,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 16:24:38,166 INFO L87 Difference]: Start difference. First operand has 3445 states, 1916 states have (on average 1.1758872651356993) internal successors, (2253), 2045 states have internal predecessors, (2253), 1504 states have call successors, (1504), 23 states have call predecessors, (1504), 23 states have return successors, (1504), 1404 states have call predecessors, (1504), 1504 states have call successors, (1504) Second operand has 2 states, 2 states have (on average 163.0) internal successors, (326), 2 states have internal predecessors, (326), 2 states have call successors, (213), 2 states have call predecessors, (213), 1 states have return successors, (212), 1 states have call predecessors, (212), 2 states have call successors, (212) [2025-02-05 16:24:38,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:38,470 INFO L93 Difference]: Finished difference Result 6885 states and 11992 transitions. [2025-02-05 16:24:38,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 16:24:38,475 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 163.0) internal successors, (326), 2 states have internal predecessors, (326), 2 states have call successors, (213), 2 states have call predecessors, (213), 1 states have return successors, (212), 1 states have call predecessors, (212), 2 states have call successors, (212) Word has length 1376 [2025-02-05 16:24:38,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:38,543 INFO L225 Difference]: With dead ends: 6885 [2025-02-05 16:24:38,544 INFO L226 Difference]: Without dead ends: 3440 [2025-02-05 16:24:38,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1377 GetRequests, 1377 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 16:24:38,593 INFO L435 NwaCegarLoop]: 5259 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, 5259 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:24:38,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5259 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:24:38,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3440 states. [2025-02-05 16:24:39,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3440 to 3440. [2025-02-05 16:24:39,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3440 states, 1912 states have (on average 1.1752092050209204) internal successors, (2247), 2041 states have internal predecessors, (2247), 1504 states have call successors, (1504), 23 states have call predecessors, (1504), 23 states have return successors, (1503), 1403 states have call predecessors, (1503), 1503 states have call successors, (1503) [2025-02-05 16:24:39,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 5254 transitions. [2025-02-05 16:24:39,858 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 5254 transitions. Word has length 1376 [2025-02-05 16:24:39,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:39,861 INFO L471 AbstractCegarLoop]: Abstraction has 3440 states and 5254 transitions. [2025-02-05 16:24:39,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 163.0) internal successors, (326), 2 states have internal predecessors, (326), 2 states have call successors, (213), 2 states have call predecessors, (213), 1 states have return successors, (212), 1 states have call predecessors, (212), 2 states have call successors, (212) [2025-02-05 16:24:39,862 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 5254 transitions. [2025-02-05 16:24:39,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1377 [2025-02-05 16:24:39,926 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:39,927 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:24:39,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-05 16:24:40,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-05 16:24:40,128 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:40,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:40,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1457563719, now seen corresponding path program 1 times [2025-02-05 16:24:40,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:40,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686453447] [2025-02-05 16:24:40,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:40,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:41,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1376 statements into 1 equivalence classes. [2025-02-05 16:24:42,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1376 of 1376 statements. [2025-02-05 16:24:42,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:42,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:44,386 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 624 proven. 3 refuted. 0 times theorem prover too weak. 87153 trivial. 0 not checked. [2025-02-05 16:24:44,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:24:44,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686453447] [2025-02-05 16:24:44,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686453447] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 16:24:44,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211285802] [2025-02-05 16:24:44,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:44,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:24:44,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:24:44,391 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 16:24:44,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-05 16:24:46,596 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1376 statements into 1 equivalence classes. [2025-02-05 16:24:47,214 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1376 of 1376 statements. [2025-02-05 16:24:47,214 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:47,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:24:47,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 5794 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-05 16:24:47,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 16:24:47,345 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 1460 proven. 0 refuted. 0 times theorem prover too weak. 86320 trivial. 0 not checked. [2025-02-05 16:24:47,345 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 16:24:47,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211285802] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:24:47,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 16:24:47,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2025-02-05 16:24:47,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682029833] [2025-02-05 16:24:47,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:24:47,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 16:24:47,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:24:47,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 16:24:47,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 16:24:47,352 INFO L87 Difference]: Start difference. First operand 3440 states and 5254 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 2 states have call successors, (213), 2 states have call predecessors, (213), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) [2025-02-05 16:24:56,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:24:56,429 INFO L93 Difference]: Finished difference Result 6168 states and 9449 transitions. [2025-02-05 16:24:56,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:24:56,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 2 states have call successors, (213), 2 states have call predecessors, (213), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) Word has length 1376 [2025-02-05 16:24:56,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:24:56,480 INFO L225 Difference]: With dead ends: 6168 [2025-02-05 16:24:56,481 INFO L226 Difference]: Without dead ends: 3438 [2025-02-05 16:24:56,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1380 GetRequests, 1377 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:24:56,507 INFO L435 NwaCegarLoop]: 3884 mSDtfsCounter, 1 mSDsluCounter, 5031 mSDsCounter, 0 mSdLazyCounter, 6832 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8915 SdHoareTripleChecker+Invalid, 6836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2025-02-05 16:24:56,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8915 Invalid, 6836 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 6832 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2025-02-05 16:24:56,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3438 states. [2025-02-05 16:24:57,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3438 to 3436. [2025-02-05 16:24:57,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3436 states, 1910 states have (on average 1.1743455497382198) internal successors, (2243), 2039 states have internal predecessors, (2243), 1502 states have call successors, (1502), 23 states have call predecessors, (1502), 23 states have return successors, (1501), 1401 states have call predecessors, (1501), 1501 states have call successors, (1501) [2025-02-05 16:24:57,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3436 states to 3436 states and 5246 transitions. [2025-02-05 16:24:57,495 INFO L78 Accepts]: Start accepts. Automaton has 3436 states and 5246 transitions. Word has length 1376 [2025-02-05 16:24:57,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:24:57,503 INFO L471 AbstractCegarLoop]: Abstraction has 3436 states and 5246 transitions. [2025-02-05 16:24:57,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 2 states have call successors, (213), 2 states have call predecessors, (213), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) [2025-02-05 16:24:57,504 INFO L276 IsEmpty]: Start isEmpty. Operand 3436 states and 5246 transitions. [2025-02-05 16:24:57,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1414 [2025-02-05 16:24:57,539 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:24:57,539 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:24:57,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-05 16:24:57,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 16:24:57,741 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:24:57,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:24:57,742 INFO L85 PathProgramCache]: Analyzing trace with hash -844309723, now seen corresponding path program 1 times [2025-02-05 16:24:57,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:24:57,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120664944] [2025-02-05 16:24:57,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:24:57,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:24:59,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1413 statements into 1 equivalence classes. [2025-02-05 16:24:59,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1413 of 1413 statements. [2025-02-05 16:24:59,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:24:59,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:25:00,754 INFO L134 CoverageAnalysis]: Checked inductivity of 86951 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86951 trivial. 0 not checked. [2025-02-05 16:25:00,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:25:00,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120664944] [2025-02-05 16:25:00,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120664944] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:25:00,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:25:00,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:25:00,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927608131] [2025-02-05 16:25:00,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:25:00,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:25:00,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:25:00,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:25:00,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:25:00,761 INFO L87 Difference]: Start difference. First operand 3436 states and 5246 transitions. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 2 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 2 states have call predecessors, (214), 2 states have call successors, (214) [2025-02-05 16:25:00,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:25:00,917 INFO L93 Difference]: Finished difference Result 6160 states and 9431 transitions. [2025-02-05 16:25:00,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:25:00,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 2 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 2 states have call predecessors, (214), 2 states have call successors, (214) Word has length 1413 [2025-02-05 16:25:00,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:25:00,995 INFO L225 Difference]: With dead ends: 6160 [2025-02-05 16:25:00,995 INFO L226 Difference]: Without dead ends: 3436 [2025-02-05 16:25:01,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:25:01,017 INFO L435 NwaCegarLoop]: 5244 mSDtfsCounter, 0 mSDsluCounter, 5234 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10478 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:25:01,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10478 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:25:01,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3436 states. [2025-02-05 16:25:01,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3436 to 3436. [2025-02-05 16:25:01,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3436 states, 1910 states have (on average 1.1738219895287958) internal successors, (2242), 2039 states have internal predecessors, (2242), 1502 states have call successors, (1502), 23 states have call predecessors, (1502), 23 states have return successors, (1501), 1401 states have call predecessors, (1501), 1501 states have call successors, (1501) [2025-02-05 16:25:01,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3436 states to 3436 states and 5245 transitions. [2025-02-05 16:25:01,961 INFO L78 Accepts]: Start accepts. Automaton has 3436 states and 5245 transitions. Word has length 1413 [2025-02-05 16:25:01,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:25:01,967 INFO L471 AbstractCegarLoop]: Abstraction has 3436 states and 5245 transitions. [2025-02-05 16:25:01,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 2 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 2 states have call predecessors, (214), 2 states have call successors, (214) [2025-02-05 16:25:01,969 INFO L276 IsEmpty]: Start isEmpty. Operand 3436 states and 5245 transitions. [2025-02-05 16:25:01,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1422 [2025-02-05 16:25:01,989 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:25:01,990 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:25:01,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 16:25:01,990 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:25:01,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:25:01,991 INFO L85 PathProgramCache]: Analyzing trace with hash -456747612, now seen corresponding path program 1 times [2025-02-05 16:25:01,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:25:01,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623479930] [2025-02-05 16:25:01,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:25:01,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:25:03,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1421 statements into 1 equivalence classes. [2025-02-05 16:25:04,050 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1421 of 1421 statements. [2025-02-05 16:25:04,050 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:25:04,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:25:08,068 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86954 trivial. 0 not checked. [2025-02-05 16:25:08,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:25:08,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623479930] [2025-02-05 16:25:08,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623479930] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:25:08,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:25:08,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 16:25:08,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932527591] [2025-02-05 16:25:08,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:25:08,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:25:08,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:25:08,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:25:08,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:25:08,073 INFO L87 Difference]: Start difference. First operand 3436 states and 5245 transitions. Second operand has 5 states, 4 states have (on average 89.0) internal successors, (356), 5 states have internal predecessors, (356), 4 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) [2025-02-05 16:25:16,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:25:16,179 INFO L93 Difference]: Finished difference Result 6465 states and 9874 transitions. [2025-02-05 16:25:16,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:25:16,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 89.0) internal successors, (356), 5 states have internal predecessors, (356), 4 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) Word has length 1421 [2025-02-05 16:25:16,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:25:16,223 INFO L225 Difference]: With dead ends: 6465 [2025-02-05 16:25:16,224 INFO L226 Difference]: Without dead ends: 3741 [2025-02-05 16:25:16,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:25:16,245 INFO L435 NwaCegarLoop]: 5618 mSDtfsCounter, 5657 mSDsluCounter, 3525 mSDsCounter, 0 mSdLazyCounter, 4874 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5657 SdHoareTripleChecker+Valid, 9143 SdHoareTripleChecker+Invalid, 4902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2025-02-05 16:25:16,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5657 Valid, 9143 Invalid, 4902 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 4874 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2025-02-05 16:25:16,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3741 states. [2025-02-05 16:25:17,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3741 to 3741. [2025-02-05 16:25:17,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3741 states, 2133 states have (on average 1.191279887482419) internal successors, (2541), 2262 states have internal predecessors, (2541), 1574 states have call successors, (1574), 33 states have call predecessors, (1574), 33 states have return successors, (1573), 1473 states have call predecessors, (1573), 1573 states have call successors, (1573) [2025-02-05 16:25:17,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3741 states to 3741 states and 5688 transitions. [2025-02-05 16:25:17,119 INFO L78 Accepts]: Start accepts. Automaton has 3741 states and 5688 transitions. Word has length 1421 [2025-02-05 16:25:17,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:25:17,121 INFO L471 AbstractCegarLoop]: Abstraction has 3741 states and 5688 transitions. [2025-02-05 16:25:17,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 89.0) internal successors, (356), 5 states have internal predecessors, (356), 4 states have call successors, (217), 2 states have call predecessors, (217), 2 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) [2025-02-05 16:25:17,121 INFO L276 IsEmpty]: Start isEmpty. Operand 3741 states and 5688 transitions. [2025-02-05 16:25:17,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1426 [2025-02-05 16:25:17,143 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:25:17,144 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:25:17,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 16:25:17,145 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:25:17,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:25:17,146 INFO L85 PathProgramCache]: Analyzing trace with hash 658245635, now seen corresponding path program 1 times [2025-02-05 16:25:17,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:25:17,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290848600] [2025-02-05 16:25:17,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:25:17,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:25:18,742 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1425 statements into 1 equivalence classes. [2025-02-05 16:25:18,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1425 of 1425 statements. [2025-02-05 16:25:18,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:25:18,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat