./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_2.cil-2+token_ring.12.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_2.cil-2+token_ring.12.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 afc452e582a18ce642d1e41e01e6f77614ca2cc57c3cb5416c5427160b30d0ba --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 01:07:14,425 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 01:07:14,517 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 01:07:14,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 01:07:14,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 01:07:14,550 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 01:07:14,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 01:07:14,553 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 01:07:14,553 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 01:07:14,554 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 01:07:14,554 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 01:07:14,554 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 01:07:14,555 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 01:07:14,555 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 01:07:14,555 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 01:07:14,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 01:07:14,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 01:07:14,557 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 01:07:14,557 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 01:07:14,557 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 01:07:14,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 01:07:14,561 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 01:07:14,562 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 01:07:14,562 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 01:07:14,562 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 01:07:14,562 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 01:07:14,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 01:07:14,563 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 01:07:14,563 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 01:07:14,564 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 01:07:14,564 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 01:07:14,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 01:07:14,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:07:14,565 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 01:07:14,565 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 01:07:14,566 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 01:07:14,567 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 01:07:14,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 01:07:14,567 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 01:07:14,567 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 01:07:14,568 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 01:07:14,569 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 01:07:14,569 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afc452e582a18ce642d1e41e01e6f77614ca2cc57c3cb5416c5427160b30d0ba [2024-11-10 01:07:14,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 01:07:14,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 01:07:14,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 01:07:14,867 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 01:07:14,868 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 01:07:14,869 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-2+token_ring.12.cil-2.c [2024-11-10 01:07:16,363 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 01:07:16,649 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 01:07:16,652 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-2+token_ring.12.cil-2.c [2024-11-10 01:07:16,685 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cbd84c62/a35bf435e18d42ae82a26759e61e5cde/FLAG39311ec33 [2024-11-10 01:07:16,938 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cbd84c62/a35bf435e18d42ae82a26759e61e5cde [2024-11-10 01:07:16,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 01:07:16,942 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 01:07:16,943 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 01:07:16,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 01:07:16,948 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 01:07:16,948 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:07:16" (1/1) ... [2024-11-10 01:07:16,949 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d26d80a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:16, skipping insertion in model container [2024-11-10 01:07:16,949 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:07:16" (1/1) ... [2024-11-10 01:07:17,005 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 01:07:17,209 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_2.cil-2+token_ring.12.cil-2.c[914,927] [2024-11-10 01:07:17,294 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_2.cil-2+token_ring.12.cil-2.c[7125,7138] [2024-11-10 01:07:17,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:07:17,424 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 01:07:17,437 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_2.cil-2+token_ring.12.cil-2.c[914,927] [2024-11-10 01:07:17,453 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_2.cil-2+token_ring.12.cil-2.c[7125,7138] [2024-11-10 01:07:17,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:07:17,539 INFO L204 MainTranslator]: Completed translation [2024-11-10 01:07:17,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:17 WrapperNode [2024-11-10 01:07:17,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 01:07:17,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 01:07:17,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 01:07:17,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 01:07:17,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:17" (1/1) ... [2024-11-10 01:07:17,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:17" (1/1) ... [2024-11-10 01:07:17,641 INFO L138 Inliner]: procedures = 77, calls = 94, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 1050 [2024-11-10 01:07:17,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 01:07:17,647 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 01:07:17,647 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 01:07:17,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 01:07:17,664 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:17" (1/1) ... [2024-11-10 01:07:17,664 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:17" (1/1) ... [2024-11-10 01:07:17,685 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:17" (1/1) ... [2024-11-10 01:07:17,706 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 01:07:17,707 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:17" (1/1) ... [2024-11-10 01:07:17,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:17" (1/1) ... [2024-11-10 01:07:17,720 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:17" (1/1) ... [2024-11-10 01:07:17,726 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:17" (1/1) ... [2024-11-10 01:07:17,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:17" (1/1) ... [2024-11-10 01:07:17,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:17" (1/1) ... [2024-11-10 01:07:17,737 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 01:07:17,738 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 01:07:17,738 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 01:07:17,738 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 01:07:17,739 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:17" (1/1) ... [2024-11-10 01:07:17,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:07:17,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:07:17,785 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 01:07:17,789 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 01:07:17,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 01:07:17,838 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 01:07:17,838 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 01:07:17,838 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-10 01:07:17,838 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-10 01:07:17,838 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-10 01:07:17,838 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-10 01:07:17,839 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-10 01:07:17,839 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-10 01:07:17,839 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-10 01:07:17,839 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-10 01:07:17,839 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-10 01:07:17,839 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-10 01:07:17,839 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-10 01:07:17,839 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-10 01:07:17,839 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-10 01:07:17,840 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-10 01:07:17,840 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-10 01:07:17,840 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-10 01:07:17,840 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-10 01:07:17,840 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-10 01:07:17,840 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-10 01:07:17,840 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-10 01:07:17,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 01:07:17,840 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-10 01:07:17,841 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-10 01:07:17,841 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-10 01:07:17,841 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-10 01:07:17,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 01:07:17,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 01:07:17,841 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-10 01:07:17,841 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-10 01:07:17,986 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 01:07:17,988 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 01:07:19,162 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-11-10 01:07:19,162 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 01:07:19,192 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 01:07:19,192 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 01:07:19,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:07:19 BoogieIcfgContainer [2024-11-10 01:07:19,193 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 01:07:19,195 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 01:07:19,195 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 01:07:19,199 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 01:07:19,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:07:16" (1/3) ... [2024-11-10 01:07:19,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78527877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:07:19, skipping insertion in model container [2024-11-10 01:07:19,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:17" (2/3) ... [2024-11-10 01:07:19,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78527877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:07:19, skipping insertion in model container [2024-11-10 01:07:19,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:07:19" (3/3) ... [2024-11-10 01:07:19,201 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-2+token_ring.12.cil-2.c [2024-11-10 01:07:19,214 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 01:07:19,215 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 01:07:19,288 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 01:07:19,297 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;@785ceec9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 01:07:19,297 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 01:07:19,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 571 states, 498 states have (on average 1.5742971887550201) internal successors, (784), 520 states have internal predecessors, (784), 41 states have call successors, (41), 14 states have call predecessors, (41), 14 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-10 01:07:19,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-10 01:07:19,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:07:19,317 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] [2024-11-10 01:07:19,318 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:07:19,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:07:19,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1602462372, now seen corresponding path program 1 times [2024-11-10 01:07:19,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:07:19,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739078283] [2024-11-10 01:07:19,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:07:19,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:07:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:19,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 01:07:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:19,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 01:07:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:20,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 01:07:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:20,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 01:07:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:20,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-10 01:07:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:20,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 01:07:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:20,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 01:07:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:20,031 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 01:07:20,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:07:20,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739078283] [2024-11-10 01:07:20,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739078283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:07:20,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:07:20,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 01:07:20,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637350229] [2024-11-10 01:07:20,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:07:20,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 01:07:20,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:07:20,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 01:07:20,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:07:20,064 INFO L87 Difference]: Start difference. First operand has 571 states, 498 states have (on average 1.5742971887550201) internal successors, (784), 520 states have internal predecessors, (784), 41 states have call successors, (41), 14 states have call predecessors, (41), 14 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 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 01:07:20,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 01:07:20,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-10 01:07:20,382 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 95 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 01:07:20,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 201 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 01:07:20,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 01:07:20,384 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 01:07:20,391 INFO L158 Benchmark]: Toolchain (without parser) took 3448.92ms. Allocated memory was 148.9MB in the beginning and 228.6MB in the end (delta: 79.7MB). Free memory was 92.8MB in the beginning and 155.1MB in the end (delta: -62.3MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2024-11-10 01:07:20,391 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 148.9MB. Free memory was 110.5MB in the beginning and 110.3MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 01:07:20,392 INFO L158 Benchmark]: CACSL2BoogieTranslator took 597.74ms. Allocated memory is still 148.9MB. Free memory was 92.6MB in the beginning and 62.5MB in the end (delta: 30.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-10 01:07:20,392 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.95ms. Allocated memory is still 148.9MB. Free memory was 62.5MB in the beginning and 117.1MB in the end (delta: -54.6MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2024-11-10 01:07:20,393 INFO L158 Benchmark]: Boogie Preprocessor took 90.29ms. Allocated memory was 148.9MB in the beginning and 228.6MB in the end (delta: 79.7MB). Free memory was 117.1MB in the beginning and 195.5MB in the end (delta: -78.4MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2024-11-10 01:07:20,394 INFO L158 Benchmark]: IcfgBuilder took 1455.48ms. Allocated memory is still 228.6MB. Free memory was 195.5MB in the beginning and 99.1MB in the end (delta: 96.5MB). Peak memory consumption was 98.6MB. Max. memory is 16.1GB. [2024-11-10 01:07:20,394 INFO L158 Benchmark]: TraceAbstraction took 1195.32ms. Allocated memory is still 228.6MB. Free memory was 98.0MB in the beginning and 155.1MB in the end (delta: -57.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 01:07:20,398 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 148.9MB. Free memory was 110.5MB in the beginning and 110.3MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 597.74ms. Allocated memory is still 148.9MB. Free memory was 92.6MB in the beginning and 62.5MB in the end (delta: 30.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.95ms. Allocated memory is still 148.9MB. Free memory was 62.5MB in the beginning and 117.1MB in the end (delta: -54.6MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.29ms. Allocated memory was 148.9MB in the beginning and 228.6MB in the end (delta: 79.7MB). Free memory was 117.1MB in the beginning and 195.5MB in the end (delta: -78.4MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * IcfgBuilder took 1455.48ms. Allocated memory is still 228.6MB. Free memory was 195.5MB in the beginning and 99.1MB in the end (delta: 96.5MB). Peak memory consumption was 98.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1195.32ms. Allocated memory is still 228.6MB. Free memory was 98.0MB in the beginning and 155.1MB in the end (delta: -57.1MB). 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 01:07:20,428 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 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_2.cil-2+token_ring.12.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 afc452e582a18ce642d1e41e01e6f77614ca2cc57c3cb5416c5427160b30d0ba --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 01:07:22,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 01:07:22,716 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-10 01:07:22,721 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 01:07:22,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 01:07:22,749 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 01:07:22,750 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 01:07:22,750 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 01:07:22,751 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 01:07:22,752 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 01:07:22,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 01:07:22,753 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 01:07:22,754 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 01:07:22,757 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 01:07:22,757 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 01:07:22,757 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 01:07:22,757 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 01:07:22,758 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 01:07:22,758 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 01:07:22,758 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 01:07:22,758 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 01:07:22,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 01:07:22,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 01:07:22,759 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 01:07:22,759 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-10 01:07:22,761 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 01:07:22,762 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-10 01:07:22,762 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 01:07:22,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 01:07:22,762 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 01:07:22,762 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 01:07:22,763 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 01:07:22,763 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 01:07:22,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 01:07:22,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:07:22,764 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 01:07:22,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 01:07:22,765 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 01:07:22,765 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-10 01:07:22,766 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-10 01:07:22,766 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 01:07:22,766 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 01:07:22,766 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 01:07:22,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 01:07:22,767 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afc452e582a18ce642d1e41e01e6f77614ca2cc57c3cb5416c5427160b30d0ba [2024-11-10 01:07:23,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 01:07:23,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 01:07:23,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 01:07:23,087 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 01:07:23,087 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 01:07:23,088 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_2.cil-2+token_ring.12.cil-2.c [2024-11-10 01:07:24,599 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 01:07:24,894 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 01:07:24,898 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_2.cil-2+token_ring.12.cil-2.c [2024-11-10 01:07:24,927 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27d2cb6c6/58063b848b9d4148a3169eabe425c85e/FLAG951673499 [2024-11-10 01:07:25,187 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27d2cb6c6/58063b848b9d4148a3169eabe425c85e [2024-11-10 01:07:25,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 01:07:25,191 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 01:07:25,192 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 01:07:25,193 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 01:07:25,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 01:07:25,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:07:25" (1/1) ... [2024-11-10 01:07:25,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25cf312a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:25, skipping insertion in model container [2024-11-10 01:07:25,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:07:25" (1/1) ... [2024-11-10 01:07:25,257 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 01:07:25,461 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_2.cil-2+token_ring.12.cil-2.c[914,927] [2024-11-10 01:07:25,535 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_2.cil-2+token_ring.12.cil-2.c[7125,7138] [2024-11-10 01:07:25,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:07:25,702 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 01:07:25,714 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_2.cil-2+token_ring.12.cil-2.c[914,927] [2024-11-10 01:07:25,732 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_2.cil-2+token_ring.12.cil-2.c[7125,7138] [2024-11-10 01:07:25,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:07:25,850 INFO L204 MainTranslator]: Completed translation [2024-11-10 01:07:25,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:25 WrapperNode [2024-11-10 01:07:25,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 01:07:25,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 01:07:25,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 01:07:25,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 01:07:25,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:25" (1/1) ... [2024-11-10 01:07:25,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:25" (1/1) ... [2024-11-10 01:07:25,948 INFO L138 Inliner]: procedures = 78, calls = 94, calls flagged for inlining = 46, calls inlined = 46, statements flattened = 1011 [2024-11-10 01:07:25,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 01:07:25,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 01:07:25,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 01:07:25,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 01:07:25,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:25" (1/1) ... [2024-11-10 01:07:25,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:25" (1/1) ... [2024-11-10 01:07:25,979 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:25" (1/1) ... [2024-11-10 01:07:26,005 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 01:07:26,009 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:25" (1/1) ... [2024-11-10 01:07:26,009 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:25" (1/1) ... [2024-11-10 01:07:26,032 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:25" (1/1) ... [2024-11-10 01:07:26,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:25" (1/1) ... [2024-11-10 01:07:26,040 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:25" (1/1) ... [2024-11-10 01:07:26,047 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:25" (1/1) ... [2024-11-10 01:07:26,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 01:07:26,058 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 01:07:26,058 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 01:07:26,058 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 01:07:26,059 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:25" (1/1) ... [2024-11-10 01:07:26,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:07:26,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:07:26,092 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 01:07:26,097 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 01:07:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 01:07:26,147 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 01:07:26,148 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 01:07:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-10 01:07:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-10 01:07:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-10 01:07:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-10 01:07:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-10 01:07:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-10 01:07:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-10 01:07:26,150 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-10 01:07:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-10 01:07:26,150 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-10 01:07:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-10 01:07:26,151 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-10 01:07:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-10 01:07:26,151 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-10 01:07:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-10 01:07:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-10 01:07:26,152 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-10 01:07:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-10 01:07:26,153 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-10 01:07:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-10 01:07:26,153 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-10 01:07:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-10 01:07:26,153 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-10 01:07:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-10 01:07:26,154 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-10 01:07:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 01:07:26,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 01:07:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-10 01:07:26,155 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-10 01:07:26,324 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 01:07:26,328 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 01:07:27,520 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-11-10 01:07:27,520 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 01:07:27,543 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 01:07:27,543 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 01:07:27,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:07:27 BoogieIcfgContainer [2024-11-10 01:07:27,544 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 01:07:27,545 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 01:07:27,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 01:07:27,549 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 01:07:27,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:07:25" (1/3) ... [2024-11-10 01:07:27,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a4651c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:07:27, skipping insertion in model container [2024-11-10 01:07:27,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:25" (2/3) ... [2024-11-10 01:07:27,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a4651c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:07:27, skipping insertion in model container [2024-11-10 01:07:27,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:07:27" (3/3) ... [2024-11-10 01:07:27,552 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-2+token_ring.12.cil-2.c [2024-11-10 01:07:27,570 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 01:07:27,570 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 01:07:27,674 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 01:07:27,683 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;@2d760793, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 01:07:27,683 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 01:07:27,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 571 states, 498 states have (on average 1.5742971887550201) internal successors, (784), 520 states have internal predecessors, (784), 41 states have call successors, (41), 14 states have call predecessors, (41), 14 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-10 01:07:27,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-10 01:07:27,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:07:27,708 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] [2024-11-10 01:07:27,708 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:07:27,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:07:27,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1602462372, now seen corresponding path program 1 times [2024-11-10 01:07:27,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 01:07:27,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259574503] [2024-11-10 01:07:27,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:07:27,726 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 01:07:27,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 01:07:27,729 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 01:07:27,731 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 01:07:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:27,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 01:07:27,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:07:28,007 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 01:07:28,007 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 01:07:28,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 01:07:28,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [259574503] [2024-11-10 01:07:28,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [259574503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:07:28,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:07:28,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 01:07:28,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916593797] [2024-11-10 01:07:28,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:07:28,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 01:07:28,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 01:07:28,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 01:07:28,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 01:07:28,047 INFO L87 Difference]: Start difference. First operand has 571 states, 498 states have (on average 1.5742971887550201) internal successors, (784), 520 states have internal predecessors, (784), 41 states have call successors, (41), 14 states have call predecessors, (41), 14 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 01:07:28,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 01:07:28,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 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 01:07:28,164 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 44 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:07:28,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 216 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:07:28,172 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 01:07:28,370 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 01:07:28,371 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 01:07:28,375 INFO L158 Benchmark]: Toolchain (without parser) took 3183.28ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 59.3MB in the beginning and 38.9MB in the end (delta: 20.4MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2024-11-10 01:07:28,375 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 54.5MB. Free memory is still 26.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 01:07:28,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 658.82ms. Allocated memory is still 81.8MB. Free memory was 59.0MB in the beginning and 54.9MB in the end (delta: 4.1MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2024-11-10 01:07:28,376 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.73ms. Allocated memory is still 81.8MB. Free memory was 54.9MB in the beginning and 49.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 01:07:28,377 INFO L158 Benchmark]: Boogie Preprocessor took 108.05ms. Allocated memory is still 81.8MB. Free memory was 49.9MB in the beginning and 45.3MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 01:07:28,378 INFO L158 Benchmark]: IcfgBuilder took 1485.99ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 45.1MB in the beginning and 43.8MB in the end (delta: 1.3MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2024-11-10 01:07:28,378 INFO L158 Benchmark]: TraceAbstraction took 828.52ms. Allocated memory is still 100.7MB. Free memory was 43.6MB in the beginning and 38.9MB in the end (delta: 4.8MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2024-11-10 01:07:28,381 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 54.5MB. Free memory is still 26.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 658.82ms. Allocated memory is still 81.8MB. Free memory was 59.0MB in the beginning and 54.9MB in the end (delta: 4.1MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.73ms. Allocated memory is still 81.8MB. Free memory was 54.9MB in the beginning and 49.9MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 108.05ms. Allocated memory is still 81.8MB. Free memory was 49.9MB in the beginning and 45.3MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 1485.99ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 45.1MB in the beginning and 43.8MB in the end (delta: 1.3MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * TraceAbstraction took 828.52ms. Allocated memory is still 100.7MB. Free memory was 43.6MB in the beginning and 38.9MB in the end (delta: 4.8MB). Peak memory consumption was 6.7MB. 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 01:07:28,417 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