./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9629d1cdaf2a4c1ffb7c786f584a153b15eed3823334fbbe8ec635b18d57c1af --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 01:07:30,339 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 01:07:30,400 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 01:07:30,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 01:07:30,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 01:07:30,447 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 01:07:30,448 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 01:07:30,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 01:07:30,449 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 01:07:30,450 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 01:07:30,450 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 01:07:30,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 01:07:30,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 01:07:30,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 01:07:30,452 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 01:07:30,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 01:07:30,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 01:07:30,453 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 01:07:30,453 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 01:07:30,454 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 01:07:30,454 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 01:07:30,457 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 01:07:30,457 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 01:07:30,457 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 01:07:30,457 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 01:07:30,457 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 01:07:30,458 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 01:07:30,458 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 01:07:30,458 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 01:07:30,458 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 01:07:30,458 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 01:07:30,458 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 01:07:30,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:07:30,459 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 01:07:30,459 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 01:07:30,459 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 01:07:30,459 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 01:07:30,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 01:07:30,459 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 01:07:30,459 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 01:07:30,460 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 01:07:30,460 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 01:07:30,460 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9629d1cdaf2a4c1ffb7c786f584a153b15eed3823334fbbe8ec635b18d57c1af [2024-11-10 01:07:30,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 01:07:30,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 01:07:30,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 01:07:30,716 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 01:07:30,716 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 01:07:30,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c [2024-11-10 01:07:32,263 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 01:07:32,436 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 01:07:32,437 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c [2024-11-10 01:07:32,450 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b20184e1b/f2e38af062974935b8e9265f2268f894/FLAG6e0b43f74 [2024-11-10 01:07:32,822 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b20184e1b/f2e38af062974935b8e9265f2268f894 [2024-11-10 01:07:32,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 01:07:32,827 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 01:07:32,829 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 01:07:32,830 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 01:07:32,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 01:07:32,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:07:32" (1/1) ... [2024-11-10 01:07:32,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53e689d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:32, skipping insertion in model container [2024-11-10 01:07:32,836 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:07:32" (1/1) ... [2024-11-10 01:07:32,882 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 01:07:33,093 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c[911,924] [2024-11-10 01:07:33,152 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c[8416,8429] [2024-11-10 01:07:33,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:07:33,252 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 01:07:33,261 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c[911,924] [2024-11-10 01:07:33,285 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c[8416,8429] [2024-11-10 01:07:33,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:07:33,369 INFO L204 MainTranslator]: Completed translation [2024-11-10 01:07:33,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:33 WrapperNode [2024-11-10 01:07:33,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 01:07:33,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 01:07:33,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 01:07:33,370 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 01:07:33,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:33" (1/1) ... [2024-11-10 01:07:33,396 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:33" (1/1) ... [2024-11-10 01:07:33,430 INFO L138 Inliner]: procedures = 69, calls = 83, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 798 [2024-11-10 01:07:33,430 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 01:07:33,431 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 01:07:33,431 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 01:07:33,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 01:07:33,444 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:33" (1/1) ... [2024-11-10 01:07:33,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:33" (1/1) ... [2024-11-10 01:07:33,451 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:33" (1/1) ... [2024-11-10 01:07:33,470 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-10 01:07:33,472 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:33" (1/1) ... [2024-11-10 01:07:33,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:33" (1/1) ... [2024-11-10 01:07:33,482 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:33" (1/1) ... [2024-11-10 01:07:33,483 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:33" (1/1) ... [2024-11-10 01:07:33,485 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:33" (1/1) ... [2024-11-10 01:07:33,486 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:33" (1/1) ... [2024-11-10 01:07:33,489 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 01:07:33,490 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 01:07:33,490 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 01:07:33,490 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 01:07:33,491 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:33" (1/1) ... [2024-11-10 01:07:33,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:07:33,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:07:33,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 01:07:33,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 01:07:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 01:07:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 01:07:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 01:07:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-10 01:07:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-10 01:07:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-10 01:07:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-10 01:07:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-10 01:07:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-10 01:07:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-10 01:07:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-10 01:07:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-10 01:07:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-10 01:07:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-10 01:07:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-10 01:07:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-10 01:07:33,580 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-10 01:07:33,580 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-10 01:07:33,581 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-10 01:07:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-10 01:07:33,581 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-10 01:07:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-10 01:07:33,581 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-10 01:07:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 01:07:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-10 01:07:33,582 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-10 01:07:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-10 01:07:33,582 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-10 01:07:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 01:07:33,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 01:07:33,583 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-10 01:07:33,583 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-10 01:07:33,583 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-10 01:07:33,583 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-10 01:07:33,702 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 01:07:33,704 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 01:07:34,293 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L225: do_read_c_~a~0#1 := ~a_t~0; [2024-11-10 01:07:34,293 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L226: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2024-11-10 01:07:34,293 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L226: assume !(1 == ~q_free~0); [2024-11-10 01:07:34,419 INFO L? ?]: Removed 104 outVars from TransFormulas that were not future-live. [2024-11-10 01:07:34,419 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 01:07:34,447 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 01:07:34,447 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 01:07:34,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:07:34 BoogieIcfgContainer [2024-11-10 01:07:34,448 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 01:07:34,454 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 01:07:34,454 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 01:07:34,458 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 01:07:34,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:07:32" (1/3) ... [2024-11-10 01:07:34,459 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46608fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:07:34, skipping insertion in model container [2024-11-10 01:07:34,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:33" (2/3) ... [2024-11-10 01:07:34,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46608fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:07:34, skipping insertion in model container [2024-11-10 01:07:34,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:07:34" (3/3) ... [2024-11-10 01:07:34,462 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.07.cil-2.c [2024-11-10 01:07:34,475 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 01:07:34,476 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 01:07:34,553 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 01:07:34,558 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;@7e667df6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 01:07:34,559 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 01:07:34,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 443 states, 376 states have (on average 1.5558510638297873) internal successors, (585), 394 states have internal predecessors, (585), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-10 01:07:34,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-10 01:07:34,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:07:34,610 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:07:34,610 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:07:34,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:07:34,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1355590009, now seen corresponding path program 1 times [2024-11-10 01:07:34,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:07:34,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16859204] [2024-11-10 01:07:34,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:07:34,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:07:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:34,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 01:07:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:35,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 01:07:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:35,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 01:07:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:35,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 01:07:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:35,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-10 01:07:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:35,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 01:07:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:35,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 01:07:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:35,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:07:35,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:07:35,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16859204] [2024-11-10 01:07:35,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16859204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:07:35,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:07:35,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 01:07:35,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321759442] [2024-11-10 01:07:35,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:07:35,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 01:07:35,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:07:35,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 01:07:35,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:07:35,095 INFO L87 Difference]: Start difference. First operand has 443 states, 376 states have (on average 1.5558510638297873) internal successors, (585), 394 states have internal predecessors, (585), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-10 01:07:35,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 01:07:35,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-10 01:07:35,505 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 117 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 01:07:35,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 179 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 01:07:35,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 01:07:35,512 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor1(BasicAbstractInterpolantAutomaton.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:65) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:246) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:210) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:373) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-10 01:07:35,520 INFO L158 Benchmark]: Toolchain (without parser) took 2693.24ms. Allocated memory was 146.8MB in the beginning and 190.8MB in the end (delta: 44.0MB). Free memory was 76.3MB in the beginning and 91.7MB in the end (delta: -15.4MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2024-11-10 01:07:35,521 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 146.8MB. Free memory is still 111.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 01:07:35,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 540.48ms. Allocated memory was 146.8MB in the beginning and 190.8MB in the end (delta: 44.0MB). Free memory was 76.2MB in the beginning and 159.0MB in the end (delta: -82.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-10 01:07:35,522 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.09ms. Allocated memory is still 190.8MB. Free memory was 159.0MB in the beginning and 154.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 01:07:35,524 INFO L158 Benchmark]: Boogie Preprocessor took 58.67ms. Allocated memory is still 190.8MB. Free memory was 154.9MB in the beginning and 151.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 01:07:35,524 INFO L158 Benchmark]: IcfgBuilder took 958.11ms. Allocated memory is still 190.8MB. Free memory was 151.7MB in the beginning and 89.8MB in the end (delta: 61.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2024-11-10 01:07:35,524 INFO L158 Benchmark]: TraceAbstraction took 1065.82ms. Allocated memory is still 190.8MB. Free memory was 89.8MB in the beginning and 91.7MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 01:07:35,526 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 146.8MB. Free memory is still 111.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 540.48ms. Allocated memory was 146.8MB in the beginning and 190.8MB in the end (delta: 44.0MB). Free memory was 76.2MB in the beginning and 159.0MB in the end (delta: -82.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.09ms. Allocated memory is still 190.8MB. Free memory was 159.0MB in the beginning and 154.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.67ms. Allocated memory is still 190.8MB. Free memory was 154.9MB in the beginning and 151.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 958.11ms. Allocated memory is still 190.8MB. Free memory was 151.7MB in the beginning and 89.8MB in the end (delta: 61.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1065.82ms. Allocated memory is still 190.8MB. Free memory was 89.8MB in the beginning and 91.7MB in the end (delta: -1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor1(BasicAbstractInterpolantAutomaton.java:99) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-10 01:07:35,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9629d1cdaf2a4c1ffb7c786f584a153b15eed3823334fbbe8ec635b18d57c1af --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 01:07:37,664 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 01:07:37,738 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-10 01:07:37,743 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 01:07:37,743 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 01:07:37,772 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 01:07:37,772 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 01:07:37,773 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 01:07:37,773 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 01:07:37,773 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 01:07:37,774 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 01:07:37,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 01:07:37,775 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 01:07:37,776 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 01:07:37,776 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 01:07:37,777 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 01:07:37,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 01:07:37,777 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 01:07:37,778 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 01:07:37,778 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 01:07:37,781 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 01:07:37,781 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 01:07:37,781 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 01:07:37,782 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 01:07:37,782 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-10 01:07:37,782 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 01:07:37,782 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-10 01:07:37,782 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 01:07:37,782 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 01:07:37,783 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 01:07:37,783 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 01:07:37,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 01:07:37,783 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 01:07:37,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 01:07:37,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:07:37,784 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 01:07:37,784 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 01:07:37,784 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 01:07:37,784 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-10 01:07:37,784 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-10 01:07:37,784 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 01:07:37,785 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 01:07:37,785 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 01:07:37,786 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 01:07:37,786 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9629d1cdaf2a4c1ffb7c786f584a153b15eed3823334fbbe8ec635b18d57c1af [2024-11-10 01:07:38,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 01:07:38,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 01:07:38,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 01:07:38,108 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 01:07:38,108 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 01:07:38,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c [2024-11-10 01:07:39,653 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 01:07:39,857 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 01:07:39,861 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c [2024-11-10 01:07:39,884 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0a13a9a/4a13ad4eb5b943e18ccc3cf07676233c/FLAG53c581868 [2024-11-10 01:07:40,211 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0a13a9a/4a13ad4eb5b943e18ccc3cf07676233c [2024-11-10 01:07:40,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 01:07:40,215 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 01:07:40,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 01:07:40,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 01:07:40,221 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 01:07:40,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:07:40" (1/1) ... [2024-11-10 01:07:40,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@323b4b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:40, skipping insertion in model container [2024-11-10 01:07:40,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:07:40" (1/1) ... [2024-11-10 01:07:40,262 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 01:07:40,414 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c[911,924] [2024-11-10 01:07:40,475 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c[8416,8429] [2024-11-10 01:07:40,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:07:40,586 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 01:07:40,596 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c[911,924] [2024-11-10 01:07:40,621 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.07.cil-2.c[8416,8429] [2024-11-10 01:07:40,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:07:40,696 INFO L204 MainTranslator]: Completed translation [2024-11-10 01:07:40,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:40 WrapperNode [2024-11-10 01:07:40,698 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 01:07:40,698 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 01:07:40,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 01:07:40,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 01:07:40,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:40" (1/1) ... [2024-11-10 01:07:40,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:40" (1/1) ... [2024-11-10 01:07:40,754 INFO L138 Inliner]: procedures = 70, calls = 83, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 767 [2024-11-10 01:07:40,755 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 01:07:40,755 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 01:07:40,755 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 01:07:40,756 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 01:07:40,765 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:40" (1/1) ... [2024-11-10 01:07:40,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:40" (1/1) ... [2024-11-10 01:07:40,770 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:40" (1/1) ... [2024-11-10 01:07:40,785 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-10 01:07:40,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:40" (1/1) ... [2024-11-10 01:07:40,786 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:40" (1/1) ... [2024-11-10 01:07:40,796 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:40" (1/1) ... [2024-11-10 01:07:40,803 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:40" (1/1) ... [2024-11-10 01:07:40,806 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:40" (1/1) ... [2024-11-10 01:07:40,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:40" (1/1) ... [2024-11-10 01:07:40,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 01:07:40,813 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 01:07:40,813 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 01:07:40,813 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 01:07:40,814 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:40" (1/1) ... [2024-11-10 01:07:40,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:07:40,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:07:40,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 01:07:40,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 01:07:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 01:07:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 01:07:40,907 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 01:07:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-10 01:07:40,907 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-10 01:07:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-10 01:07:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-10 01:07:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-10 01:07:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-10 01:07:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-10 01:07:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-10 01:07:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-10 01:07:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-10 01:07:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-10 01:07:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-10 01:07:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-10 01:07:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-10 01:07:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-10 01:07:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-10 01:07:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-10 01:07:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-10 01:07:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-10 01:07:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-10 01:07:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-10 01:07:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-10 01:07:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-10 01:07:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-10 01:07:40,912 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-10 01:07:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 01:07:40,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 01:07:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-10 01:07:40,912 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-10 01:07:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-10 01:07:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-10 01:07:41,018 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 01:07:41,020 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 01:07:41,547 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L225: do_read_c_~a~0#1 := ~a_t~0; [2024-11-10 01:07:41,548 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L226: assume 1bv32 == ~q_free~0;~c_dr_st~0 := 2bv32;~c_dr_pc~0 := 2bv32;~a_t~0 := do_read_c_~a~0#1; [2024-11-10 01:07:41,548 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L226: assume !(1bv32 == ~q_free~0); [2024-11-10 01:07:41,663 INFO L? ?]: Removed 104 outVars from TransFormulas that were not future-live. [2024-11-10 01:07:41,664 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 01:07:41,679 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 01:07:41,679 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 01:07:41,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:07:41 BoogieIcfgContainer [2024-11-10 01:07:41,680 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 01:07:41,681 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 01:07:41,681 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 01:07:41,683 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 01:07:41,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:07:40" (1/3) ... [2024-11-10 01:07:41,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619e5222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:07:41, skipping insertion in model container [2024-11-10 01:07:41,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:40" (2/3) ... [2024-11-10 01:07:41,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619e5222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:07:41, skipping insertion in model container [2024-11-10 01:07:41,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:07:41" (3/3) ... [2024-11-10 01:07:41,685 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.07.cil-2.c [2024-11-10 01:07:41,697 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 01:07:41,697 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 01:07:41,762 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 01:07:41,767 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;@4ca61cee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 01:07:41,768 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 01:07:41,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 443 states, 376 states have (on average 1.5558510638297873) internal successors, (585), 394 states have internal predecessors, (585), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-10 01:07:41,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-10 01:07:41,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:07:41,785 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:07:41,785 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:07:41,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:07:41,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1355590009, now seen corresponding path program 1 times [2024-11-10 01:07:41,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 01:07:41,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852825242] [2024-11-10 01:07:41,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:07:41,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 01:07:41,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 01:07:41,807 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-10 01:07:41,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-10 01:07:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:41,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 01:07:41,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:07:42,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 01:07:42,043 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 01:07:42,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 01:07:42,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852825242] [2024-11-10 01:07:42,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [852825242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:07:42,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:07:42,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 01:07:42,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259108869] [2024-11-10 01:07:42,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:07:42,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 01:07:42,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 01:07:42,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 01:07:42,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 01:07:42,069 INFO L87 Difference]: Start difference. First operand has 443 states, 376 states have (on average 1.5558510638297873) internal successors, (585), 394 states have internal predecessors, (585), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-10 01:07:42,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 01:07:42,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:07:42,203 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 65 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:07:42,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 176 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:07:42,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-10 01:07:42,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-10 01:07:42,406 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor1(BasicAbstractInterpolantAutomaton.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:65) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:246) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:210) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:373) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-10 01:07:42,410 INFO L158 Benchmark]: Toolchain (without parser) took 2194.46ms. Allocated memory was 69.2MB in the beginning and 123.7MB in the end (delta: 54.5MB). Free memory was 48.0MB in the beginning and 69.6MB in the end (delta: -21.6MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2024-11-10 01:07:42,412 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 69.2MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 01:07:42,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.91ms. Allocated memory was 69.2MB in the beginning and 123.7MB in the end (delta: 54.5MB). Free memory was 47.8MB in the beginning and 95.3MB in the end (delta: -47.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-10 01:07:42,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.19ms. Allocated memory is still 123.7MB. Free memory was 95.3MB in the beginning and 91.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 01:07:42,414 INFO L158 Benchmark]: Boogie Preprocessor took 57.02ms. Allocated memory is still 123.7MB. Free memory was 91.2MB in the beginning and 87.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 01:07:42,414 INFO L158 Benchmark]: IcfgBuilder took 866.84ms. Allocated memory is still 123.7MB. Free memory was 87.0MB in the beginning and 51.1MB in the end (delta: 35.9MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2024-11-10 01:07:42,415 INFO L158 Benchmark]: TraceAbstraction took 728.31ms. Allocated memory is still 123.7MB. Free memory was 51.1MB in the beginning and 69.6MB in the end (delta: -18.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 01:07:42,417 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 69.2MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 480.91ms. Allocated memory was 69.2MB in the beginning and 123.7MB in the end (delta: 54.5MB). Free memory was 47.8MB in the beginning and 95.3MB in the end (delta: -47.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.19ms. Allocated memory is still 123.7MB. Free memory was 95.3MB in the beginning and 91.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.02ms. Allocated memory is still 123.7MB. Free memory was 91.2MB in the beginning and 87.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 866.84ms. Allocated memory is still 123.7MB. Free memory was 87.0MB in the beginning and 51.1MB in the end (delta: 35.9MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * TraceAbstraction took 728.31ms. Allocated memory is still 123.7MB. Free memory was 51.1MB in the beginning and 69.6MB in the end (delta: -18.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor1(BasicAbstractInterpolantAutomaton.java:99) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-10 01:07:42,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null