./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.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/rekcba_nxt.2.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 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 04:31:19,570 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 04:31:19,624 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 04:31:19,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 04:31:19,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 04:31:19,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 04:31:19,649 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 04:31:19,649 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 04:31:19,650 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 04:31:19,650 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 04:31:19,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 04:31:19,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 04:31:19,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 04:31:19,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 04:31:19,650 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 04:31:19,651 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 04:31:19,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 04:31:19,651 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 04:31:19,651 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 04:31:19,651 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 04:31:19,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 04:31:19,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 04:31:19,651 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 04:31:19,651 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 04:31:19,651 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 04:31:19,651 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 04:31:19,651 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 04:31:19,652 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 04:31:19,652 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 04:31:19,652 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:31:19,652 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:31:19,652 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:31:19,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:31:19,652 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 04:31:19,652 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:31:19,652 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:31:19,652 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:31:19,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:31:19,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 04:31:19,653 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 04:31:19,653 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 04:31:19,653 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 04:31:19,653 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 04:31:19,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 04:31:19,653 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 04:31:19,653 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 04:31:19,653 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 04:31:19,653 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 04:31:19,653 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 -> 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a [2025-01-09 04:31:19,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 04:31:19,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 04:31:19,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 04:31:19,909 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 04:31:19,909 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 04:31:19,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2025-01-09 04:31:21,149 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9846838c0/501514cece114067a33dc506fc2703ae/FLAG8cc7af790 [2025-01-09 04:31:21,674 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 04:31:21,674 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2025-01-09 04:31:21,708 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9846838c0/501514cece114067a33dc506fc2703ae/FLAG8cc7af790 [2025-01-09 04:31:21,722 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9846838c0/501514cece114067a33dc506fc2703ae [2025-01-09 04:31:21,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 04:31:21,727 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 04:31:21,728 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 04:31:21,728 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 04:31:21,731 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 04:31:21,732 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:31:21" (1/1) ... [2025-01-09 04:31:21,733 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626e5a40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:21, skipping insertion in model container [2025-01-09 04:31:21,733 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:31:21" (1/1) ... [2025-01-09 04:31:21,834 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 04:31:22,035 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/rekcba_nxt.2.M4-1.c[2195,2208] [2025-01-09 04:31:22,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:31:22,930 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 04:31:22,941 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.ok2.i","-S") [51] [2025-01-09 04:31:22,950 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/rekcba_nxt.2.M4-1.c[2195,2208] [2025-01-09 04:31:23,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:31:23,602 INFO L204 MainTranslator]: Completed translation [2025-01-09 04:31:23,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:23 WrapperNode [2025-01-09 04:31:23,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 04:31:23,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 04:31:23,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 04:31:23,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 04:31:23,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:23" (1/1) ... [2025-01-09 04:31:23,849 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:23" (1/1) ... [2025-01-09 04:31:24,955 INFO L138 Inliner]: procedures = 59, calls = 18819, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 40930 [2025-01-09 04:31:24,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 04:31:24,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 04:31:24,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 04:31:24,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 04:31:24,969 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:23" (1/1) ... [2025-01-09 04:31:24,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:23" (1/1) ... [2025-01-09 04:31:25,460 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:23" (1/1) ... [2025-01-09 04:31:25,668 INFO L175 MemorySlicer]: Split 14537 memory accesses to 20 slices as follows [2, 8, 194, 17, 2, 9, 2784, 3812, 2400, 1676, 1252, 2, 852, 325, 429, 325, 429, 8, 4, 7]. 26 percent of accesses are in the largest equivalence class. The 664 initializations are split as follows [2, 0, 0, 8, 0, 4, 96, 96, 8, 8, 4, 0, 4, 108, 108, 108, 108, 0, 0, 2]. The 761 writes are split as follows [0, 4, 98, 1, 1, 1, 96, 96, 8, 8, 4, 1, 4, 109, 107, 109, 107, 4, 0, 3]. [2025-01-09 04:31:25,669 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:23" (1/1) ... [2025-01-09 04:31:25,669 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:23" (1/1) ... [2025-01-09 04:31:26,407 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:23" (1/1) ... [2025-01-09 04:31:26,454 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:23" (1/1) ... [2025-01-09 04:31:26,557 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:23" (1/1) ... [2025-01-09 04:31:26,707 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:23" (1/1) ... [2025-01-09 04:31:26,795 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:23" (1/1) ... [2025-01-09 04:31:27,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 04:31:27,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 04:31:27,203 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 04:31:27,203 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 04:31:27,204 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:23" (1/1) ... [2025-01-09 04:31:27,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:31:27,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:31:27,233 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 04:31:27,238 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 04:31:27,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 04:31:27,251 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-01-09 04:31:27,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-01-09 04:31:27,251 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2025-01-09 04:31:27,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2025-01-09 04:31:27,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 04:31:27,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 04:31:27,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 04:31:27,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 04:31:27,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 04:31:27,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 04:31:27,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-01-09 04:31:27,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-01-09 04:31:27,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2025-01-09 04:31:27,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2025-01-09 04:31:27,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-01-09 04:31:27,253 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2025-01-09 04:31:27,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-01-09 04:31:27,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-01-09 04:31:27,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 04:31:27,253 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2025-01-09 04:31:27,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2025-01-09 04:31:27,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 04:31:27,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 04:31:27,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 04:31:27,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 04:31:27,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 04:31:27,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 04:31:27,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 04:31:27,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 04:31:27,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-09 04:31:27,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-01-09 04:31:27,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-01-09 04:31:27,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-01-09 04:31:27,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-01-09 04:31:27,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-01-09 04:31:27,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-01-09 04:31:27,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-01-09 04:31:27,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-01-09 04:31:27,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-01-09 04:31:27,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-01-09 04:31:27,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-01-09 04:31:27,255 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-01-09 04:31:27,255 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-01-09 04:31:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2025-01-09 04:31:27,260 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2025-01-09 04:31:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 04:31:27,260 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 04:31:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 04:31:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 04:31:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 04:31:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2025-01-09 04:31:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-01-09 04:31:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-01-09 04:31:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2025-01-09 04:31:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2025-01-09 04:31:28,705 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 04:31:28,707 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 04:31:56,283 INFO L? ?]: Removed 277 outVars from TransFormulas that were not future-live. [2025-01-09 04:31:56,284 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 04:31:56,464 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 04:31:56,464 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 04:31:56,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:31:56 BoogieIcfgContainer [2025-01-09 04:31:56,465 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 04:31:56,468 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 04:31:56,468 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 04:31:56,471 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 04:31:56,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:31:21" (1/3) ... [2025-01-09 04:31:56,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1434f496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:31:56, skipping insertion in model container [2025-01-09 04:31:56,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:31:23" (2/3) ... [2025-01-09 04:31:56,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1434f496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:31:56, skipping insertion in model container [2025-01-09 04:31:56,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:31:56" (3/3) ... [2025-01-09 04:31:56,475 INFO L128 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M4-1.c [2025-01-09 04:31:56,489 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 04:31:56,493 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekcba_nxt.2.M4-1.c that has 17 procedures, 12239 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 04:31:56,793 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 04:31:56,803 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;@331e76ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 04:31:56,803 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 04:31:56,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 12239 states, 7995 states have (on average 1.3155722326454033) internal successors, (10518), 8108 states have internal predecessors, (10518), 4226 states have call successors, (4226), 16 states have call predecessors, (4226), 16 states have return successors, (4226), 4224 states have call predecessors, (4226), 4226 states have call successors, (4226) [2025-01-09 04:31:57,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4617 [2025-01-09 04:31:57,181 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:31:57,184 INFO L218 NwaCegarLoop]: trace histogram [337, 337, 337, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1] [2025-01-09 04:31:57,184 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:31:57,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:31:57,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1291215505, now seen corresponding path program 1 times [2025-01-09 04:31:57,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:31:57,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914966413] [2025-01-09 04:31:57,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:31:57,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:32:07,596 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4616 statements into 1 equivalence classes. [2025-01-09 04:32:07,817 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4616 of 4616 statements. [2025-01-09 04:32:07,818 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:32:07,818 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:32:10,887 INFO L134 CoverageAnalysis]: Checked inductivity of 226464 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 225792 trivial. 0 not checked. [2025-01-09 04:32:10,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:32:10,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914966413] [2025-01-09 04:32:10,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914966413] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:32:10,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014347849] [2025-01-09 04:32:10,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:32:10,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:32:10,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:32:10,893 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 04:32:10,894 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 04:32:22,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4616 statements into 1 equivalence classes. [2025-01-09 04:32:24,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4616 of 4616 statements. [2025-01-09 04:32:24,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:32:24,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:32:24,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 14218 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 04:32:24,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:32:24,580 INFO L134 CoverageAnalysis]: Checked inductivity of 226464 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 225792 trivial. 0 not checked. [2025-01-09 04:32:24,581 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 04:32:24,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014347849] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:32:24,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 04:32:24,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 04:32:24,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212112386] [2025-01-09 04:32:24,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:32:24,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 04:32:24,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:32:24,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 04:32:24,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 04:32:24,639 INFO L87 Difference]: Start difference. First operand has 12239 states, 7995 states have (on average 1.3155722326454033) internal successors, (10518), 8108 states have internal predecessors, (10518), 4226 states have call successors, (4226), 16 states have call predecessors, (4226), 16 states have return successors, (4226), 4224 states have call predecessors, (4226), 4226 states have call successors, (4226) Second operand has 2 states, 2 states have (on average 1467.5) internal successors, (2935), 2 states have internal predecessors, (2935), 2 states have call successors, (338), 2 states have call predecessors, (338), 1 states have return successors, (337), 1 states have call predecessors, (337), 2 states have call successors, (337) [2025-01-09 04:32:25,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:32:25,132 INFO L93 Difference]: Finished difference Result 24473 states and 42144 transitions. [2025-01-09 04:32:25,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 04:32:25,135 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1467.5) internal successors, (2935), 2 states have internal predecessors, (2935), 2 states have call successors, (338), 2 states have call predecessors, (338), 1 states have return successors, (337), 1 states have call predecessors, (337), 2 states have call successors, (337) Word has length 4616 [2025-01-09 04:32:25,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:32:25,221 INFO L225 Difference]: With dead ends: 24473 [2025-01-09 04:32:25,221 INFO L226 Difference]: Without dead ends: 12231 [2025-01-09 04:32:25,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4617 GetRequests, 4617 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 04:32:25,289 INFO L435 NwaCegarLoop]: 18968 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, 18968 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 04:32:25,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18968 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:32:25,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12231 states. [2025-01-09 04:32:32,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12231 to 12231. [2025-01-09 04:32:32,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12231 states, 7988 states have (on average 1.3154732098147222) internal successors, (10508), 8101 states have internal predecessors, (10508), 4226 states have call successors, (4226), 16 states have call predecessors, (4226), 16 states have return successors, (4225), 4223 states have call predecessors, (4225), 4225 states have call successors, (4225) [2025-01-09 04:32:32,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12231 states to 12231 states and 18959 transitions. [2025-01-09 04:32:32,676 INFO L78 Accepts]: Start accepts. Automaton has 12231 states and 18959 transitions. Word has length 4616 [2025-01-09 04:32:32,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:32:32,678 INFO L471 AbstractCegarLoop]: Abstraction has 12231 states and 18959 transitions. [2025-01-09 04:32:32,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1467.5) internal successors, (2935), 2 states have internal predecessors, (2935), 2 states have call successors, (338), 2 states have call predecessors, (338), 1 states have return successors, (337), 1 states have call predecessors, (337), 2 states have call successors, (337) [2025-01-09 04:32:32,684 INFO L276 IsEmpty]: Start isEmpty. Operand 12231 states and 18959 transitions. [2025-01-09 04:32:32,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4617 [2025-01-09 04:32:32,973 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:32:32,975 INFO L218 NwaCegarLoop]: trace histogram [337, 337, 337, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1] [2025-01-09 04:32:33,014 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 04:32:33,176 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 04:32:33,176 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:32:33,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:32:33,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1779310619, now seen corresponding path program 1 times [2025-01-09 04:32:33,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:32:33,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288728986] [2025-01-09 04:32:33,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:32:33,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:32:43,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4616 statements into 1 equivalence classes.