./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 551b0097 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-?-551b009-m [2025-01-09 04:32:51,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 04:32:51,594 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 04:32:51,597 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 04:32:51,597 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 04:32:51,611 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 04:32:51,611 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 04:32:51,612 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 04:32:51,612 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 04:32:51,612 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 04:32:51,612 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 04:32:51,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 04:32:51,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 04:32:51,612 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 04:32:51,613 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 04:32:51,613 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 04:32:51,613 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 04:32:51,613 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 04:32:51,613 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 04:32:51,613 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 04:32:51,613 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 04:32:51,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 04:32:51,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 04:32:51,613 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 04:32:51,613 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 04:32:51,614 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 04:32:51,614 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 04:32:51,614 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 04:32:51,614 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 04:32:51,614 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:32:51,614 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:32:51,614 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:32:51,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:32:51,614 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 04:32:51,614 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:32:51,614 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:32:51,615 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:32:51,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:32:51,615 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 04:32:51,615 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 04:32:51,615 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 04:32:51,615 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 04:32:51,615 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 04:32:51,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 04:32:51,615 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 04:32:51,615 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 04:32:51,615 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 04:32:51,615 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 04:32:51,616 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 [2025-01-09 04:32:51,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 04:32:51,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 04:32:51,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 04:32:51,861 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 04:32:51,861 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 04:32:51,862 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c [2025-01-09 04:32:53,115 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/71ef539b1/fc4425718cff4f8c9978c0e52aa3671c/FLAG185fd89fd [2025-01-09 04:32:53,532 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 04:32:53,532 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M1.c [2025-01-09 04:32:53,555 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/71ef539b1/fc4425718cff4f8c9978c0e52aa3671c/FLAG185fd89fd [2025-01-09 04:32:53,567 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/71ef539b1/fc4425718cff4f8c9978c0e52aa3671c [2025-01-09 04:32:53,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 04:32:53,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 04:32:53,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 04:32:53,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 04:32:53,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 04:32:53,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:32:53" (1/1) ... [2025-01-09 04:32:53,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d463407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:32:53, skipping insertion in model container [2025-01-09 04:32:53,581 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:32:53" (1/1) ... [2025-01-09 04:32:53,648 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 04:32:53,809 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] [2025-01-09 04:32:54,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:32:54,225 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 04:32:54,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.bug4.i","-S") [39] [2025-01-09 04:32:54,240 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] [2025-01-09 04:32:54,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:32:54,528 INFO L204 MainTranslator]: Completed translation [2025-01-09 04:32:54,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:32:54 WrapperNode [2025-01-09 04:32:54,529 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 04:32:54,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 04:32:54,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 04:32:54,531 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 04:32:54,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:32:54" (1/1) ... [2025-01-09 04:32:54,638 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:32:54" (1/1) ... [2025-01-09 04:32:54,947 INFO L138 Inliner]: procedures = 70, calls = 5727, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 12675 [2025-01-09 04:32:54,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 04:32:54,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 04:32:54,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 04:32:54,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 04:32:54,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:32:54" (1/1) ... [2025-01-09 04:32:54,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:32:54" (1/1) ... [2025-01-09 04:32:55,056 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:32:54" (1/1) ... [2025-01-09 04:32:55,153 INFO L175 MemorySlicer]: Split 4157 memory accesses to 27 slices as follows [8, 2, 2, 379, 455, 113, 113, 180, 203, 180, 203, 180, 203, 4, 2, 180, 203, 180, 203, 8, 180, 203, 180, 203, 7, 180, 203]. 11 percent of accesses are in the largest equivalence class. The 544 initializations are split as follows [0, 0, 2, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 0, 0, 27, 27, 27, 27, 0, 27, 27, 27, 27, 2, 27, 27]. The 553 writes are split as follows [4, 1, 0, 27, 27, 27, 27, 28, 26, 28, 26, 28, 26, 0, 1, 28, 26, 28, 26, 4, 28, 26, 28, 26, 3, 28, 26]. [2025-01-09 04:32:55,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:32:54" (1/1) ... [2025-01-09 04:32:55,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:32:54" (1/1) ... [2025-01-09 04:32:55,341 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:32:54" (1/1) ... [2025-01-09 04:32:55,368 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:32:54" (1/1) ... [2025-01-09 04:32:55,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:32:54" (1/1) ... [2025-01-09 04:32:55,431 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:32:54" (1/1) ... [2025-01-09 04:32:55,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:32:54" (1/1) ... [2025-01-09 04:32:55,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 04:32:55,507 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 04:32:55,508 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 04:32:55,508 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 04:32:55,509 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:32:54" (1/1) ... [2025-01-09 04:32:55,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:32:55,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:32:55,533 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) [2025-01-09 04:32:55,537 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 [2025-01-09 04:32:55,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 04:32:55,553 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2025-01-09 04:32:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-01-09 04:32:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2025-01-09 04:32:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-01-09 04:32:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-01-09 04:32:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2025-01-09 04:32:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2025-01-09 04:32:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-01-09 04:32:55,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-01-09 04:32:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2025-01-09 04:32:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2025-01-09 04:32:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2025-01-09 04:32:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-01-09 04:32:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-01-09 04:32:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-01-09 04:32:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 04:32:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 04:32:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 04:32:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 04:32:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-09 04:32:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-01-09 04:32:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-01-09 04:32:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-01-09 04:32:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-01-09 04:32:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-01-09 04:32:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-01-09 04:32:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-01-09 04:32:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-01-09 04:32:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-01-09 04:32:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-01-09 04:32:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-01-09 04:32:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2025-01-09 04:32:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2025-01-09 04:32:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2025-01-09 04:32:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2025-01-09 04:32:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2025-01-09 04:32:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2025-01-09 04:32:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2025-01-09 04:32:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-01-09 04:32:55,559 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-01-09 04:32:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2025-01-09 04:32:55,560 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2025-01-09 04:32:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2025-01-09 04:32:55,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2025-01-09 04:32:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2025-01-09 04:32:55,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2025-01-09 04:32:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 04:32:55,560 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 04:32:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 04:32:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 04:32:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 04:32:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 04:32:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 04:32:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 04:32:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 04:32:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 04:32:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 04:32:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 04:32:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-09 04:32:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-09 04:32:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-09 04:32:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-01-09 04:32:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-01-09 04:32:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-01-09 04:32:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-01-09 04:32:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-01-09 04:32:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-01-09 04:32:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-01-09 04:32:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2025-01-09 04:32:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2025-01-09 04:32:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2025-01-09 04:32:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2025-01-09 04:32:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2025-01-09 04:32:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2025-01-09 04:32:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2025-01-09 04:32:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 04:32:55,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 04:32:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2025-01-09 04:32:55,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2025-01-09 04:32:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-01-09 04:32:55,563 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-01-09 04:32:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2025-01-09 04:32:55,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2025-01-09 04:32:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2025-01-09 04:32:55,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2025-01-09 04:32:56,110 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 04:32:56,116 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 04:33:05,469 INFO L? ?]: Removed 505 outVars from TransFormulas that were not future-live. [2025-01-09 04:33:05,470 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 04:33:05,531 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 04:33:05,532 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 04:33:05,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:33:05 BoogieIcfgContainer [2025-01-09 04:33:05,532 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 04:33:05,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 04:33:05,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 04:33:05,538 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 04:33:05,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:32:53" (1/3) ... [2025-01-09 04:33:05,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee97910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:33:05, skipping insertion in model container [2025-01-09 04:33:05,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:32:54" (2/3) ... [2025-01-09 04:33:05,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee97910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:33:05, skipping insertion in model container [2025-01-09 04:33:05,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:33:05" (3/3) ... [2025-01-09 04:33:05,540 INFO L128 eAbstractionObserver]: Analyzing ICFG rekh_aso.4.M1.c [2025-01-09 04:33:05,550 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 04:33:05,553 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. [2025-01-09 04:33:05,658 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 04:33:05,667 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;@c5bd2f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 04:33:05,667 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 04:33:05,680 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) [2025-01-09 04:33:05,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1377 [2025-01-09 04:33:05,761 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:33:05,762 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] [2025-01-09 04:33:05,763 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:33:05,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:33:05,770 INFO L85 PathProgramCache]: Analyzing trace with hash 583184401, now seen corresponding path program 1 times [2025-01-09 04:33:05,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:33:05,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202375909] [2025-01-09 04:33:05,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:33:05,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:33:07,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1376 statements into 1 equivalence classes. [2025-01-09 04:33:08,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1376 of 1376 statements. [2025-01-09 04:33:08,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:33:08,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:33:09,543 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 624 proven. 3 refuted. 0 times theorem prover too weak. 87153 trivial. 0 not checked. [2025-01-09 04:33:09,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:33:09,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202375909] [2025-01-09 04:33:09,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202375909] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:33:09,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776827996] [2025-01-09 04:33:09,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:33:09,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:33:09,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:33:09,548 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) [2025-01-09 04:33:09,553 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 [2025-01-09 04:33:11,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1376 statements into 1 equivalence classes. [2025-01-09 04:33:12,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1376 of 1376 statements. [2025-01-09 04:33:12,440 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:33:12,440 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:33:12,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 5794 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 04:33:12,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:33:12,605 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 1460 proven. 0 refuted. 0 times theorem prover too weak. 86320 trivial. 0 not checked. [2025-01-09 04:33:12,605 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 04:33:12,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776827996] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:33:12,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 04:33:12,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2025-01-09 04:33:12,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666293953] [2025-01-09 04:33:12,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:33:12,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 04:33:12,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:33:12,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 04:33:12,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 04:33:12,656 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 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) [2025-01-09 04:33:21,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:33:21,943 INFO L93 Difference]: Finished difference Result 6885 states and 11993 transitions. [2025-01-09 04:33:21,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:33:21,945 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 [2025-01-09 04:33:21,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:33:21,985 INFO L225 Difference]: With dead ends: 6885 [2025-01-09 04:33:21,986 INFO L226 Difference]: Without dead ends: 3438 [2025-01-09 04:33:22,016 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 [2025-01-09 04:33:22,018 INFO L435 NwaCegarLoop]: 3889 mSDtfsCounter, 1 mSDsluCounter, 5041 mSDsCounter, 0 mSdLazyCounter, 6832 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8930 SdHoareTripleChecker+Invalid, 6836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2025-01-09 04:33:22,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8930 Invalid, 6836 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 6832 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2025-01-09 04:33:22,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3438 states. [2025-01-09 04:33:22,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3438 to 3436. [2025-01-09 04:33:22,818 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) [2025-01-09 04:33:22,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3436 states to 3436 states and 5246 transitions. [2025-01-09 04:33:22,852 INFO L78 Accepts]: Start accepts. Automaton has 3436 states and 5246 transitions. Word has length 1376 [2025-01-09 04:33:22,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:33:22,855 INFO L471 AbstractCegarLoop]: Abstraction has 3436 states and 5246 transitions. [2025-01-09 04:33:22,855 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) [2025-01-09 04:33:22,856 INFO L276 IsEmpty]: Start isEmpty. Operand 3436 states and 5246 transitions. [2025-01-09 04:33:22,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1418 [2025-01-09 04:33:22,897 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:33:22,898 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:33:22,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 04:33:23,103 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 [2025-01-09 04:33:23,103 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:33:23,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:33:23,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1417307041, now seen corresponding path program 1 times [2025-01-09 04:33:23,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:33:23,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326681713] [2025-01-09 04:33:23,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:33:23,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:33:24,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1417 statements into 1 equivalence classes. [2025-01-09 04:33:24,602 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1417 of 1417 statements. [2025-01-09 04:33:24,603 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:33:24,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:33:25,733 INFO L134 CoverageAnalysis]: Checked inductivity of 86949 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86949 trivial. 0 not checked. [2025-01-09 04:33:25,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:33:25,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326681713] [2025-01-09 04:33:25,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326681713] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:33:25,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:33:25,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:33:25,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356556314] [2025-01-09 04:33:25,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:33:25,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:33:25,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:33:25,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:33:25,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:33:25,740 INFO L87 Difference]: Start difference. First operand 3436 states and 5246 transitions. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 2 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (215), 2 states have call predecessors, (215), 2 states have call successors, (215) [2025-01-09 04:33:25,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:33:25,857 INFO L93 Difference]: Finished difference Result 6160 states and 9431 transitions. [2025-01-09 04:33:25,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:33:25,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 2 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (215), 2 states have call predecessors, (215), 2 states have call successors, (215) Word has length 1417 [2025-01-09 04:33:25,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:33:25,892 INFO L225 Difference]: With dead ends: 6160 [2025-01-09 04:33:25,892 INFO L226 Difference]: Without dead ends: 3436 [2025-01-09 04:33:25,906 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 [2025-01-09 04:33:25,907 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 [2025-01-09 04:33:25,907 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] [2025-01-09 04:33:25,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3436 states. [2025-01-09 04:33:26,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3436 to 3436. [2025-01-09 04:33:26,872 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) [2025-01-09 04:33:26,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3436 states to 3436 states and 5245 transitions. [2025-01-09 04:33:26,894 INFO L78 Accepts]: Start accepts. Automaton has 3436 states and 5245 transitions. Word has length 1417 [2025-01-09 04:33:26,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:33:26,898 INFO L471 AbstractCegarLoop]: Abstraction has 3436 states and 5245 transitions. [2025-01-09 04:33:26,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 2 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (215), 2 states have call predecessors, (215), 2 states have call successors, (215) [2025-01-09 04:33:26,902 INFO L276 IsEmpty]: Start isEmpty. Operand 3436 states and 5245 transitions. [2025-01-09 04:33:26,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1426 [2025-01-09 04:33:26,918 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:33:26,919 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1, 1, 1, 1] [2025-01-09 04:33:26,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 04:33:26,921 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:33:26,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:33:26,923 INFO L85 PathProgramCache]: Analyzing trace with hash 396185053, now seen corresponding path program 1 times [2025-01-09 04:33:26,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:33:26,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203826338] [2025-01-09 04:33:26,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:33:26,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:33:28,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1425 statements into 1 equivalence classes. [2025-01-09 04:33:28,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1425 of 1425 statements. [2025-01-09 04:33:28,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:33:28,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:33:30,250 INFO L134 CoverageAnalysis]: Checked inductivity of 86952 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 86948 trivial. 0 not checked. [2025-01-09 04:33:30,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:33:30,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203826338] [2025-01-09 04:33:30,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203826338] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:33:30,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:33:30,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 04:33:30,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607416449] [2025-01-09 04:33:30,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:33:30,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 04:33:30,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:33:30,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 04:33:30,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 04:33:30,255 INFO L87 Difference]: Start difference. First operand 3436 states and 5245 transitions. Second operand has 6 states, 6 states have (on average 60.666666666666664) internal successors, (364), 6 states have internal predecessors, (364), 4 states have call successors, (218), 2 states have call predecessors, (218), 4 states have return successors, (217), 4 states have call predecessors, (217), 4 states have call successors, (217) [2025-01-09 04:33:38,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:33:38,378 INFO L93 Difference]: Finished difference Result 6463 states and 9876 transitions. [2025-01-09 04:33:38,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:33:38,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 60.666666666666664) internal successors, (364), 6 states have internal predecessors, (364), 4 states have call successors, (218), 2 states have call predecessors, (218), 4 states have return successors, (217), 4 states have call predecessors, (217), 4 states have call successors, (217) Word has length 1425 [2025-01-09 04:33:38,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:33:38,414 INFO L225 Difference]: With dead ends: 6463 [2025-01-09 04:33:38,414 INFO L226 Difference]: Without dead ends: 3739 [2025-01-09 04:33:38,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-01-09 04:33:38,434 INFO L435 NwaCegarLoop]: 5616 mSDtfsCounter, 6691 mSDsluCounter, 3485 mSDsCounter, 0 mSdLazyCounter, 4491 mSolverCounterSat, 1187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6691 SdHoareTripleChecker+Valid, 9101 SdHoareTripleChecker+Invalid, 5678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1187 IncrementalHoareTripleChecker+Valid, 4491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2025-01-09 04:33:38,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6691 Valid, 9101 Invalid, 5678 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1187 Valid, 4491 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2025-01-09 04:33:38,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3739 states. [2025-01-09 04:33:39,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3739 to 3739. [2025-01-09 04:33:39,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3739 states, 2132 states have (on average 1.1913696060037524) internal successors, (2540), 2261 states have internal predecessors, (2540), 1573 states have call successors, (1573), 33 states have call predecessors, (1573), 33 states have return successors, (1572), 1472 states have call predecessors, (1572), 1572 states have call successors, (1572) [2025-01-09 04:33:39,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3739 states to 3739 states and 5685 transitions. [2025-01-09 04:33:39,120 INFO L78 Accepts]: Start accepts. Automaton has 3739 states and 5685 transitions. Word has length 1425 [2025-01-09 04:33:39,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:33:39,122 INFO L471 AbstractCegarLoop]: Abstraction has 3739 states and 5685 transitions. [2025-01-09 04:33:39,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.666666666666664) internal successors, (364), 6 states have internal predecessors, (364), 4 states have call successors, (218), 2 states have call predecessors, (218), 4 states have return successors, (217), 4 states have call predecessors, (217), 4 states have call successors, (217) [2025-01-09 04:33:39,123 INFO L276 IsEmpty]: Start isEmpty. Operand 3739 states and 5685 transitions. [2025-01-09 04:33:39,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1422 [2025-01-09 04:33:39,147 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:33:39,148 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] [2025-01-09 04:33:39,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 04:33:39,149 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:33:39,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:33:39,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1704319432, now seen corresponding path program 1 times [2025-01-09 04:33:39,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:33:39,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735873769] [2025-01-09 04:33:39,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:33:39,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:33:41,167 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1421 statements into 1 equivalence classes. [2025-01-09 04:33:41,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1421 of 1421 statements. [2025-01-09 04:33:41,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:33:41,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:33:43,780 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86954 trivial. 0 not checked. [2025-01-09 04:33:43,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:33:43,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735873769] [2025-01-09 04:33:43,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735873769] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:33:43,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:33:43,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:33:43,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799350683] [2025-01-09 04:33:43,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:33:43,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:33:43,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:33:43,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:33:43,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:33:43,784 INFO L87 Difference]: Start difference. First operand 3739 states and 5685 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) [2025-01-09 04:33:50,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:33:50,578 INFO L93 Difference]: Finished difference Result 7030 states and 10696 transitions. [2025-01-09 04:33:50,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:33:50,579 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 [2025-01-09 04:33:50,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:33:50,612 INFO L225 Difference]: With dead ends: 7030 [2025-01-09 04:33:50,612 INFO L226 Difference]: Without dead ends: 4003 [2025-01-09 04:33:50,632 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 [2025-01-09 04:33:50,634 INFO L435 NwaCegarLoop]: 5610 mSDtfsCounter, 5649 mSDsluCounter, 3519 mSDsCounter, 0 mSdLazyCounter, 4868 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5649 SdHoareTripleChecker+Valid, 9129 SdHoareTripleChecker+Invalid, 4896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2025-01-09 04:33:50,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5649 Valid, 9129 Invalid, 4896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 4868 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2025-01-09 04:33:50,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4003 states. [2025-01-09 04:33:51,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4003 to 4003. [2025-01-09 04:33:51,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4003 states, 2327 states have (on average 1.2036957455951869) internal successors, (2801), 2456 states have internal predecessors, (2801), 1635 states have call successors, (1635), 40 states have call predecessors, (1635), 40 states have return successors, (1634), 1534 states have call predecessors, (1634), 1634 states have call successors, (1634) [2025-01-09 04:33:51,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4003 states to 4003 states and 6070 transitions. [2025-01-09 04:33:51,113 INFO L78 Accepts]: Start accepts. Automaton has 4003 states and 6070 transitions. Word has length 1421 [2025-01-09 04:33:51,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:33:51,115 INFO L471 AbstractCegarLoop]: Abstraction has 4003 states and 6070 transitions. [2025-01-09 04:33:51,115 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) [2025-01-09 04:33:51,116 INFO L276 IsEmpty]: Start isEmpty. Operand 4003 states and 6070 transitions. [2025-01-09 04:33:51,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1426 [2025-01-09 04:33:51,130 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:33:51,131 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] [2025-01-09 04:33:51,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 04:33:51,131 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:33:51,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:33:51,132 INFO L85 PathProgramCache]: Analyzing trace with hash 2110609430, now seen corresponding path program 1 times [2025-01-09 04:33:51,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:33:51,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319794167] [2025-01-09 04:33:51,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:33:51,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:33:52,390 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1425 statements into 1 equivalence classes. [2025-01-09 04:33:52,512 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1425 of 1425 statements. [2025-01-09 04:33:52,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:33:52,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:33:53,403 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 86948 trivial. 0 not checked. [2025-01-09 04:33:53,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:33:53,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319794167] [2025-01-09 04:33:53,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319794167] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:33:53,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039230098] [2025-01-09 04:33:53,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:33:53,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:33:53,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:33:53,407 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) [2025-01-09 04:33:53,409 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 [2025-01-09 04:33:55,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1425 statements into 1 equivalence classes. [2025-01-09 04:33:56,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1425 of 1425 statements. [2025-01-09 04:33:56,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:33:56,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:33:56,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 5971 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 04:33:56,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:33:56,407 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 834 proven. 0 refuted. 0 times theorem prover too weak. 86120 trivial. 0 not checked. [2025-01-09 04:33:56,407 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 04:33:56,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039230098] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:33:56,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 04:33:56,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-01-09 04:33:56,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156458210] [2025-01-09 04:33:56,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:33:56,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:33:56,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:33:56,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:33:56,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-01-09 04:33:56,411 INFO L87 Difference]: Start difference. First operand 4003 states and 6070 transitions. Second operand has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 3 states have call successors, (218), 3 states have call predecessors, (218), 3 states have return successors, (217), 3 states have call predecessors, (217), 3 states have call successors, (217) [2025-01-09 04:34:00,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:34:00,206 INFO L93 Difference]: Finished difference Result 7546 states and 11447 transitions. [2025-01-09 04:34:00,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:34:00,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 3 states have call successors, (218), 3 states have call predecessors, (218), 3 states have return successors, (217), 3 states have call predecessors, (217), 3 states have call successors, (217) Word has length 1425 [2025-01-09 04:34:00,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:34:00,237 INFO L225 Difference]: With dead ends: 7546 [2025-01-09 04:34:00,237 INFO L226 Difference]: Without dead ends: 3999 [2025-01-09 04:34:00,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1430 GetRequests, 1424 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-01-09 04:34:00,254 INFO L435 NwaCegarLoop]: 5494 mSDtfsCounter, 2221 mSDsluCounter, 11884 mSDsCounter, 0 mSdLazyCounter, 2625 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 17378 SdHoareTripleChecker+Invalid, 2627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2025-01-09 04:34:00,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2221 Valid, 17378 Invalid, 2627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2625 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2025-01-09 04:34:00,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3999 states. [2025-01-09 04:34:00,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3999 to 3999. [2025-01-09 04:34:00,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3999 states, 2325 states have (on average 1.2030107526881721) internal successors, (2797), 2454 states have internal predecessors, (2797), 1633 states have call successors, (1633), 40 states have call predecessors, (1633), 40 states have return successors, (1632), 1532 states have call predecessors, (1632), 1632 states have call successors, (1632) [2025-01-09 04:34:00,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3999 states to 3999 states and 6062 transitions. [2025-01-09 04:34:00,874 INFO L78 Accepts]: Start accepts. Automaton has 3999 states and 6062 transitions. Word has length 1425 [2025-01-09 04:34:00,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:34:00,875 INFO L471 AbstractCegarLoop]: Abstraction has 3999 states and 6062 transitions. [2025-01-09 04:34:00,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 3 states have call successors, (218), 3 states have call predecessors, (218), 3 states have return successors, (217), 3 states have call predecessors, (217), 3 states have call successors, (217) [2025-01-09 04:34:00,876 INFO L276 IsEmpty]: Start isEmpty. Operand 3999 states and 6062 transitions. [2025-01-09 04:34:00,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1427 [2025-01-09 04:34:00,888 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:34:00,889 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, 1] [2025-01-09 04:34:00,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 04:34:01,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:34:01,092 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:34:01,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:34:01,093 INFO L85 PathProgramCache]: Analyzing trace with hash 2103528562, now seen corresponding path program 1 times [2025-01-09 04:34:01,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:34:01,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451912607] [2025-01-09 04:34:01,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:34:01,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:34:02,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1426 statements into 1 equivalence classes. [2025-01-09 04:34:02,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1426 of 1426 statements. [2025-01-09 04:34:02,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:34:02,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:34:03,454 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 86950 trivial. 0 not checked. [2025-01-09 04:34:03,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:34:03,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451912607] [2025-01-09 04:34:03,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451912607] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:34:03,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674265786] [2025-01-09 04:34:03,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:34:03,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:34:03,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:34:03,456 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:34:03,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 04:34:05,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1426 statements into 1 equivalence classes. [2025-01-09 04:34:06,092 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1426 of 1426 statements. [2025-01-09 04:34:06,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:34:06,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:34:06,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 5971 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 04:34:06,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:34:06,242 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 836 proven. 0 refuted. 0 times theorem prover too weak. 86118 trivial. 0 not checked. [2025-01-09 04:34:06,242 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 04:34:06,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674265786] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:34:06,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 04:34:06,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-01-09 04:34:06,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330781033] [2025-01-09 04:34:06,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:34:06,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:34:06,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:34:06,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:34:06,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-01-09 04:34:06,245 INFO L87 Difference]: Start difference. First operand 3999 states and 6062 transitions. Second operand has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 3 states have call successors, (218), 3 states have call predecessors, (218), 3 states have return successors, (217), 3 states have call predecessors, (217), 3 states have call successors, (217) [2025-01-09 04:34:11,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:34:11,737 INFO L93 Difference]: Finished difference Result 8071 states and 12259 transitions. [2025-01-09 04:34:11,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 04:34:11,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 3 states have call successors, (218), 3 states have call predecessors, (218), 3 states have return successors, (217), 3 states have call predecessors, (217), 3 states have call successors, (217) Word has length 1426 [2025-01-09 04:34:11,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:34:11,784 INFO L225 Difference]: With dead ends: 8071 [2025-01-09 04:34:11,784 INFO L226 Difference]: Without dead ends: 4784 [2025-01-09 04:34:11,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1432 GetRequests, 1425 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 04:34:11,799 INFO L435 NwaCegarLoop]: 6000 mSDtfsCounter, 3412 mSDsluCounter, 10924 mSDsCounter, 0 mSdLazyCounter, 4272 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3412 SdHoareTripleChecker+Valid, 16924 SdHoareTripleChecker+Invalid, 4296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 4272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2025-01-09 04:34:11,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3412 Valid, 16924 Invalid, 4296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 4272 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2025-01-09 04:34:11,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4784 states. [2025-01-09 04:34:12,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4784 to 4782. [2025-01-09 04:34:12,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4782 states, 2795 states have (on average 1.207871198568873) internal successors, (3376), 2950 states have internal predecessors, (3376), 1935 states have call successors, (1935), 49 states have call predecessors, (1935), 51 states have return successors, (1937), 1810 states have call predecessors, (1937), 1934 states have call successors, (1937) [2025-01-09 04:34:12,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 7248 transitions. [2025-01-09 04:34:12,532 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 7248 transitions. Word has length 1426 [2025-01-09 04:34:12,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:34:12,534 INFO L471 AbstractCegarLoop]: Abstraction has 4782 states and 7248 transitions. [2025-01-09 04:34:12,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 3 states have call successors, (218), 3 states have call predecessors, (218), 3 states have return successors, (217), 3 states have call predecessors, (217), 3 states have call successors, (217) [2025-01-09 04:34:12,534 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 7248 transitions. [2025-01-09 04:34:12,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1437 [2025-01-09 04:34:12,547 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:34:12,547 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:34:12,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0