./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.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_nxt.1.M4-1.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 0d0faf19803047b9d51fb440293a8075aae4a757b1a8a36a5355760a1968a70e --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 04:33:54,194 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 04:33:54,257 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 04:33:54,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 04:33:54,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 04:33:54,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 04:33:54,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 04:33:54,298 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 04:33:54,298 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 04:33:54,300 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 04:33:54,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 04:33:54,301 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 04:33:54,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 04:33:54,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 04:33:54,302 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 04:33:54,302 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 04:33:54,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 04:33:54,302 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 04:33:54,303 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 04:33:54,303 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 04:33:54,303 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 04:33:54,303 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 04:33:54,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 04:33:54,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 04:33:54,303 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 04:33:54,303 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 04:33:54,303 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 04:33:54,303 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 04:33:54,304 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 04:33:54,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:33:54,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:33:54,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:33:54,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:33:54,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 04:33:54,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:33:54,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:33:54,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:33:54,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:33:54,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 04:33:54,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 04:33:54,305 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 04:33:54,305 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 04:33:54,305 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 04:33:54,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 04:33:54,306 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 04:33:54,306 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 04:33:54,306 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 04:33:54,307 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 04:33:54,307 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 -> 0d0faf19803047b9d51fb440293a8075aae4a757b1a8a36a5355760a1968a70e [2025-01-09 04:33:54,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 04:33:54,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 04:33:54,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 04:33:54,601 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 04:33:54,601 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 04:33:54,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c [2025-01-09 04:33:55,944 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7899dd4b5/6938807075f64e93bb52e78516d1fae4/FLAGf43669c20 [2025-01-09 04:33:56,287 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 04:33:56,289 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c [2025-01-09 04:33:56,310 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7899dd4b5/6938807075f64e93bb52e78516d1fae4/FLAGf43669c20 [2025-01-09 04:33:56,329 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7899dd4b5/6938807075f64e93bb52e78516d1fae4 [2025-01-09 04:33:56,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 04:33:56,334 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 04:33:56,335 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 04:33:56,335 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 04:33:56,339 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 04:33:56,340 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:33:56" (1/1) ... [2025-01-09 04:33:56,341 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f1f91a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:33:56, skipping insertion in model container [2025-01-09 04:33:56,341 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:33:56" (1/1) ... [2025-01-09 04:33:56,392 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 04:33:56,517 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_nxt.1.M4-1.c[1510,1523] [2025-01-09 04:33:56,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:33:56,808 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 04:33:56,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.bug1.i","-S") [38] [2025-01-09 04:33:56,823 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_nxt.1.M4-1.c[1510,1523] [2025-01-09 04:33:56,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:33:57,009 INFO L204 MainTranslator]: Completed translation [2025-01-09 04:33:57,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:33:57 WrapperNode [2025-01-09 04:33:57,011 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 04:33:57,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 04:33:57,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 04:33:57,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 04:33:57,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:33:57" (1/1) ... [2025-01-09 04:33:57,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:33:57" (1/1) ... [2025-01-09 04:33:57,282 INFO L138 Inliner]: procedures = 55, calls = 2262, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 4902 [2025-01-09 04:33:57,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 04:33:57,283 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 04:33:57,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 04:33:57,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 04:33:57,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:33:57" (1/1) ... [2025-01-09 04:33:57,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:33:57" (1/1) ... [2025-01-09 04:33:57,332 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:33:57" (1/1) ... [2025-01-09 04:33:57,392 INFO L175 MemorySlicer]: Split 1600 memory accesses to 15 slices as follows [2, 8, 277, 285, 113, 113, 187, 203, 2, 186, 203, 7, 8, 2, 4]. 18 percent of accesses are in the largest equivalence class. The 220 initializations are split as follows [2, 0, 27, 27, 27, 27, 27, 27, 0, 27, 27, 2, 0, 0, 0]. The 235 writes are split as follows [0, 4, 27, 27, 27, 27, 31, 26, 1, 31, 26, 3, 4, 1, 0]. [2025-01-09 04:33:57,393 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:33:57" (1/1) ... [2025-01-09 04:33:57,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:33:57" (1/1) ... [2025-01-09 04:33:57,510 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:33:57" (1/1) ... [2025-01-09 04:33:57,521 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:33:57" (1/1) ... [2025-01-09 04:33:57,545 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:33:57" (1/1) ... [2025-01-09 04:33:57,572 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:33:57" (1/1) ... [2025-01-09 04:33:57,590 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:33:57" (1/1) ... [2025-01-09 04:33:57,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 04:33:57,623 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 04:33:57,623 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 04:33:57,623 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 04:33:57,626 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:33:57" (1/1) ... [2025-01-09 04:33:57,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:33:57,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:33:57,660 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 04:33:57,667 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 04:33:57,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 04:33:57,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-01-09 04:33:57,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-01-09 04:33:57,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2025-01-09 04:33:57,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2025-01-09 04:33:57,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 04:33:57,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-01-09 04:33:57,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-01-09 04:33:57,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-01-09 04:33:57,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-01-09 04:33:57,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2025-01-09 04:33:57,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2025-01-09 04:33:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 04:33:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 04:33:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 04:33:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 04:33:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 04:33:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 04:33:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 04:33:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 04:33:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-09 04:33:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-01-09 04:33:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-01-09 04:33:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-01-09 04:33:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-01-09 04:33:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-01-09 04:33:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-01-09 04:33:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-01-09 04:33:57,693 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-01-09 04:33:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2025-01-09 04:33:57,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2025-01-09 04:33:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-01-09 04:33:57,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-01-09 04:33:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-01-09 04:33:57,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-01-09 04:33:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 04:33:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2025-01-09 04:33:57,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2025-01-09 04:33:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2025-01-09 04:33:57,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2025-01-09 04:33:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 04:33:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 04:33:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 04:33:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 04:33:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 04:33:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 04:33:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 04:33:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 04:33:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-09 04:33:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-01-09 04:33:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-01-09 04:33:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2025-01-09 04:33:57,695 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 04:33:57,695 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-09 04:33:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-09 04:33:57,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-01-09 04:33:57,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-01-09 04:33:57,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 04:33:57,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 04:33:57,696 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2025-01-09 04:33:57,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2025-01-09 04:33:57,696 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-01-09 04:33:57,696 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-01-09 04:33:57,696 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2025-01-09 04:33:57,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2025-01-09 04:33:58,207 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 04:33:58,209 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 04:34:04,868 INFO L? ?]: Removed 346 outVars from TransFormulas that were not future-live. [2025-01-09 04:34:04,868 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 04:34:04,920 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 04:34:04,920 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 04:34:04,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:34:04 BoogieIcfgContainer [2025-01-09 04:34:04,920 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 04:34:04,925 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 04:34:04,926 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 04:34:04,929 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 04:34:04,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:33:56" (1/3) ... [2025-01-09 04:34:04,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cba5a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:34:04, skipping insertion in model container [2025-01-09 04:34:04,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:33:57" (2/3) ... [2025-01-09 04:34:04,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cba5a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:34:04, skipping insertion in model container [2025-01-09 04:34:04,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:34:04" (3/3) ... [2025-01-09 04:34:04,933 INFO L128 eAbstractionObserver]: Analyzing ICFG rekh_nxt.1.M4-1.c [2025-01-09 04:34:04,950 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 04:34:04,953 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_nxt.1.M4-1.c that has 17 procedures, 1478 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 04:34:05,070 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 04:34:05,082 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;@47a9e69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 04:34:05,083 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 04:34:05,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 1478 states, 847 states have (on average 1.2609208972845336) internal successors, (1068), 976 states have internal predecessors, (1068), 613 states have call successors, (613), 16 states have call predecessors, (613), 16 states have return successors, (613), 514 states have call predecessors, (613), 613 states have call successors, (613) [2025-01-09 04:34:05,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8519 [2025-01-09 04:34:05,664 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:34:05,667 INFO L218 NwaCegarLoop]: trace histogram [964, 964, 964, 108, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:34:05,668 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:34:05,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:34:05,677 INFO L85 PathProgramCache]: Analyzing trace with hash 71784435, now seen corresponding path program 1 times [2025-01-09 04:34:05,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:34:05,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058826555] [2025-01-09 04:34:05,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:34:05,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:34:07,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8518 statements into 1 equivalence classes. [2025-01-09 04:34:07,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8518 of 8518 statements. [2025-01-09 04:34:07,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:34:07,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:34:16,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1949652 backedges. 0 proven. 3897 refuted. 0 times theorem prover too weak. 1945755 trivial. 0 not checked. [2025-01-09 04:34:16,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:34:16,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058826555] [2025-01-09 04:34:16,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058826555] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:34:16,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209721751] [2025-01-09 04:34:16,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:34:16,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:34:16,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:34:16,313 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 04:34:16,316 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 04:34:19,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8518 statements into 1 equivalence classes. [2025-01-09 04:34:22,801 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8518 of 8518 statements. [2025-01-09 04:34:22,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:34:22,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:34:22,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 28217 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 04:34:23,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:34:23,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1949652 backedges. 1932 proven. 0 refuted. 0 times theorem prover too weak. 1947720 trivial. 0 not checked. [2025-01-09 04:34:23,660 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 04:34:23,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209721751] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:34:23,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 04:34:23,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 04:34:23,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439653949] [2025-01-09 04:34:23,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:34:23,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 04:34:23,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:34:23,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 04:34:23,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 04:34:23,711 INFO L87 Difference]: Start difference. First operand has 1478 states, 847 states have (on average 1.2609208972845336) internal successors, (1068), 976 states have internal predecessors, (1068), 613 states have call successors, (613), 16 states have call predecessors, (613), 16 states have return successors, (613), 514 states have call predecessors, (613), 613 states have call successors, (613) Second operand has 2 states, 2 states have (on average 221.5) internal successors, (443), 2 states have internal predecessors, (443), 2 states have call successors, (278), 2 states have call predecessors, (278), 1 states have return successors, (278), 1 states have call predecessors, (278), 2 states have call successors, (278) [2025-01-09 04:34:23,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:34:23,943 INFO L93 Difference]: Finished difference Result 2951 states and 5179 transitions. [2025-01-09 04:34:23,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 04:34:23,949 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 221.5) internal successors, (443), 2 states have internal predecessors, (443), 2 states have call successors, (278), 2 states have call predecessors, (278), 1 states have return successors, (278), 1 states have call predecessors, (278), 2 states have call successors, (278) Word has length 8518 [2025-01-09 04:34:23,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:34:23,987 INFO L225 Difference]: With dead ends: 2951 [2025-01-09 04:34:23,988 INFO L226 Difference]: Without dead ends: 1473 [2025-01-09 04:34:24,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8519 GetRequests, 8519 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 04:34:24,019 INFO L435 NwaCegarLoop]: 2292 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2292 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:34:24,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2292 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:34:24,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2025-01-09 04:34:24,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1473. [2025-01-09 04:34:24,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 843 states have (on average 1.2586002372479241) internal successors, (1061), 971 states have internal predecessors, (1061), 613 states have call successors, (613), 16 states have call predecessors, (613), 16 states have return successors, (613), 514 states have call predecessors, (613), 613 states have call successors, (613) [2025-01-09 04:34:24,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 2287 transitions. [2025-01-09 04:34:24,500 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 2287 transitions. Word has length 8518 [2025-01-09 04:34:24,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:34:24,503 INFO L471 AbstractCegarLoop]: Abstraction has 1473 states and 2287 transitions. [2025-01-09 04:34:24,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 221.5) internal successors, (443), 2 states have internal predecessors, (443), 2 states have call successors, (278), 2 states have call predecessors, (278), 1 states have return successors, (278), 1 states have call predecessors, (278), 2 states have call successors, (278) [2025-01-09 04:34:24,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 2287 transitions. [2025-01-09 04:34:24,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8519 [2025-01-09 04:34:24,988 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:34:24,990 INFO L218 NwaCegarLoop]: trace histogram [964, 964, 964, 108, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:34:25,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 04:34:25,190 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 04:34:25,191 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:34:25,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:34:25,194 INFO L85 PathProgramCache]: Analyzing trace with hash 333827547, now seen corresponding path program 1 times [2025-01-09 04:34:25,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:34:25,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857947217] [2025-01-09 04:34:25,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:34:25,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:34:26,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8518 statements into 1 equivalence classes. [2025-01-09 04:34:26,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8518 of 8518 statements. [2025-01-09 04:34:26,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:34:26,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:34:36,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1949652 backedges. 0 proven. 1132 refuted. 0 times theorem prover too weak. 1948520 trivial. 0 not checked. [2025-01-09 04:34:36,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:34:36,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857947217] [2025-01-09 04:34:36,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857947217] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:34:36,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388196130] [2025-01-09 04:34:36,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:34:36,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:34:36,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:34:36,154 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 04:34:36,157 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 04:34:39,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8518 statements into 1 equivalence classes. [2025-01-09 04:34:42,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8518 of 8518 statements. [2025-01-09 04:34:42,199 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:34:42,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:34:42,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 28217 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 04:34:42,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:34:42,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1949652 backedges. 631702 proven. 0 refuted. 0 times theorem prover too weak. 1317950 trivial. 0 not checked. [2025-01-09 04:34:42,797 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 04:34:42,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388196130] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:34:42,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 04:34:42,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2025-01-09 04:34:42,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200941808] [2025-01-09 04:34:42,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:34:42,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:34:42,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:34:42,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:34:42,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:34:42,812 INFO L87 Difference]: Start difference. First operand 1473 states and 2287 transitions. Second operand has 3 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 2 states have call successors, (487), 2 states have call predecessors, (487), 2 states have return successors, (487), 2 states have call predecessors, (487), 2 states have call successors, (487) [2025-01-09 04:34:42,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:34:42,961 INFO L93 Difference]: Finished difference Result 2941 states and 4596 transitions. [2025-01-09 04:34:42,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:34:42,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 2 states have call successors, (487), 2 states have call predecessors, (487), 2 states have return successors, (487), 2 states have call predecessors, (487), 2 states have call successors, (487) Word has length 8518 [2025-01-09 04:34:42,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:34:42,995 INFO L225 Difference]: With dead ends: 2941 [2025-01-09 04:34:42,995 INFO L226 Difference]: Without dead ends: 1473 [2025-01-09 04:34:43,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8520 GetRequests, 8519 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 04:34:43,013 INFO L435 NwaCegarLoop]: 2285 mSDtfsCounter, 0 mSDsluCounter, 2275 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4560 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 04:34:43,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4560 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:34:43,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2025-01-09 04:34:43,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1473. [2025-01-09 04:34:43,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 843 states have (on average 1.2574139976275207) internal successors, (1060), 971 states have internal predecessors, (1060), 613 states have call successors, (613), 16 states have call predecessors, (613), 16 states have return successors, (613), 514 states have call predecessors, (613), 613 states have call successors, (613) [2025-01-09 04:34:43,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 2286 transitions. [2025-01-09 04:34:43,255 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 2286 transitions. Word has length 8518 [2025-01-09 04:34:43,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:34:43,263 INFO L471 AbstractCegarLoop]: Abstraction has 1473 states and 2286 transitions. [2025-01-09 04:34:43,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 2 states have call successors, (487), 2 states have call predecessors, (487), 2 states have return successors, (487), 2 states have call predecessors, (487), 2 states have call successors, (487) [2025-01-09 04:34:43,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 2286 transitions. [2025-01-09 04:34:43,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9287 [2025-01-09 04:34:43,730 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:34:43,732 INFO L218 NwaCegarLoop]: trace histogram [964, 964, 964, 192, 192, 108, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:34:43,797 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 04:34:43,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:34:43,933 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:34:43,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:34:43,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1957399003, now seen corresponding path program 1 times [2025-01-09 04:34:43,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:34:43,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357913925] [2025-01-09 04:34:43,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:34:43,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:34:45,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9286 statements into 1 equivalence classes. [2025-01-09 04:34:45,410 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9286 of 9286 statements. [2025-01-09 04:34:45,410 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:34:45,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:35:00,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2013780 backedges. 4 proven. 1163 refuted. 0 times theorem prover too weak. 2012613 trivial. 0 not checked. [2025-01-09 04:35:00,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:35:00,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357913925] [2025-01-09 04:35:00,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357913925] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:35:00,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591620481] [2025-01-09 04:35:00,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:35:00,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:35:00,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:35:00,375 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 04:35:00,377 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 04:35:03,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9286 statements into 1 equivalence classes. [2025-01-09 04:35:07,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9286 of 9286 statements. [2025-01-09 04:35:07,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:35:07,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:35:07,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 31289 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 04:35:07,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:35:07,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2013780 backedges. 635906 proven. 0 refuted. 0 times theorem prover too weak. 1377874 trivial. 0 not checked. [2025-01-09 04:35:07,765 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 04:35:07,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591620481] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:35:07,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 04:35:07,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-01-09 04:35:07,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019201331] [2025-01-09 04:35:07,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:35:07,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:35:07,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:35:07,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:35:07,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-01-09 04:35:07,778 INFO L87 Difference]: Start difference. First operand 1473 states and 2286 transitions. Second operand has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 3 states have call successors, (495), 3 states have call predecessors, (495), 3 states have return successors, (495), 3 states have call predecessors, (495), 3 states have call successors, (495) [2025-01-09 04:35:11,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:35:11,304 INFO L93 Difference]: Finished difference Result 3648 states and 5655 transitions. [2025-01-09 04:35:11,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:35:11,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 3 states have call successors, (495), 3 states have call predecessors, (495), 3 states have return successors, (495), 3 states have call predecessors, (495), 3 states have call successors, (495) Word has length 9286 [2025-01-09 04:35:11,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:35:11,335 INFO L225 Difference]: With dead ends: 3648 [2025-01-09 04:35:11,335 INFO L226 Difference]: Without dead ends: 2180 [2025-01-09 04:35:11,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9292 GetRequests, 9285 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 04:35:11,497 INFO L435 NwaCegarLoop]: 2980 mSDtfsCounter, 2042 mSDsluCounter, 4016 mSDsCounter, 0 mSdLazyCounter, 2325 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2042 SdHoareTripleChecker+Valid, 6996 SdHoareTripleChecker+Invalid, 2352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2025-01-09 04:35:11,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2042 Valid, 6996 Invalid, 2352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2325 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2025-01-09 04:35:11,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states.