./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.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.05.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 8067f6f3f9b2e7af84aa5945c9ed2ea4ff7d9ddfc1aa86a10fb4bb83ea8bdef8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 01:07:22,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 01:07:23,017 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 01:07:23,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 01:07:23,028 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 01:07:23,041 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 01:07:23,041 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 01:07:23,042 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 01:07:23,042 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 01:07:23,042 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 01:07:23,042 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 01:07:23,043 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 01:07:23,043 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 01:07:23,043 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 01:07:23,043 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 01:07:23,044 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 01:07:23,044 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 01:07:23,044 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 01:07:23,044 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 01:07:23,044 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 01:07:23,045 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 01:07:23,046 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 01:07:23,047 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 01:07:23,047 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 01:07:23,047 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 01:07:23,047 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 01:07:23,048 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 01:07:23,048 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 01:07:23,048 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 01:07:23,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 01:07:23,048 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 01:07:23,049 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 01:07:23,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:07:23,049 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 01:07:23,049 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 01:07:23,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 01:07:23,050 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 01:07:23,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 01:07:23,050 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 01:07:23,050 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 01:07:23,050 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 01:07:23,050 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 01:07:23,051 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8067f6f3f9b2e7af84aa5945c9ed2ea4ff7d9ddfc1aa86a10fb4bb83ea8bdef8 [2024-11-10 01:07:23,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 01:07:23,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 01:07:23,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 01:07:23,260 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 01:07:23,260 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 01:07:23,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-2.c [2024-11-10 01:07:24,437 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 01:07:24,606 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 01:07:24,606 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-2.c [2024-11-10 01:07:24,617 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb9a3c79/1e528ef4b848475f9d3b7c9c072a6186/FLAG6b1e7b736 [2024-11-10 01:07:24,628 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb9a3c79/1e528ef4b848475f9d3b7c9c072a6186 [2024-11-10 01:07:24,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 01:07:24,631 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 01:07:24,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 01:07:24,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 01:07:24,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 01:07:24,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:07:24" (1/1) ... [2024-11-10 01:07:24,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a1287d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:24, skipping insertion in model container [2024-11-10 01:07:24,637 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:07:24" (1/1) ... [2024-11-10 01:07:24,673 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 01:07:24,802 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.05.cil-2.c[911,924] [2024-11-10 01:07:24,855 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.05.cil-2.c[8416,8429] [2024-11-10 01:07:24,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:07:24,923 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 01:07:24,931 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.05.cil-2.c[911,924] [2024-11-10 01:07:24,948 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.05.cil-2.c[8416,8429] [2024-11-10 01:07:24,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:07:24,999 INFO L204 MainTranslator]: Completed translation [2024-11-10 01:07:24,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:24 WrapperNode [2024-11-10 01:07:24,999 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 01:07:25,000 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 01:07:25,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 01:07:25,000 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 01:07:25,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:24" (1/1) ... [2024-11-10 01:07:25,014 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:24" (1/1) ... [2024-11-10 01:07:25,046 INFO L138 Inliner]: procedures = 65, calls = 77, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 680 [2024-11-10 01:07:25,046 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 01:07:25,047 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 01:07:25,047 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 01:07:25,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 01:07:25,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:24" (1/1) ... [2024-11-10 01:07:25,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:24" (1/1) ... [2024-11-10 01:07:25,065 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:24" (1/1) ... [2024-11-10 01:07:25,102 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 01:07:25,102 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:24" (1/1) ... [2024-11-10 01:07:25,103 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:24" (1/1) ... [2024-11-10 01:07:25,118 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:24" (1/1) ... [2024-11-10 01:07:25,120 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:24" (1/1) ... [2024-11-10 01:07:25,122 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:24" (1/1) ... [2024-11-10 01:07:25,123 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:24" (1/1) ... [2024-11-10 01:07:25,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 01:07:25,128 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 01:07:25,128 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 01:07:25,128 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 01:07:25,128 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:24" (1/1) ... [2024-11-10 01:07:25,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:07:25,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:07:25,175 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 01:07:25,177 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 01:07:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 01:07:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 01:07:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 01:07:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-10 01:07:25,217 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-10 01:07:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-10 01:07:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-10 01:07:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-10 01:07:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-10 01:07:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-10 01:07:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-10 01:07:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-10 01:07:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-10 01:07:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-10 01:07:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-10 01:07:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-10 01:07:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-10 01:07:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-10 01:07:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-10 01:07:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-10 01:07:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-10 01:07:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-10 01:07:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-10 01:07:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 01:07:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-10 01:07:25,219 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-10 01:07:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-10 01:07:25,220 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-10 01:07:25,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 01:07:25,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 01:07:25,220 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-10 01:07:25,220 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-10 01:07:25,220 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-10 01:07:25,222 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-10 01:07:25,317 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 01:07:25,319 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 01:07:25,753 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L225: do_read_c_~a~0#1 := ~a_t~0; [2024-11-10 01:07:25,755 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 01:07:25,755 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L226: assume !(1 == ~q_free~0); [2024-11-10 01:07:25,848 INFO L? ?]: Removed 92 outVars from TransFormulas that were not future-live. [2024-11-10 01:07:25,848 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 01:07:25,873 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 01:07:25,873 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 01:07:25,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:07:25 BoogieIcfgContainer [2024-11-10 01:07:25,874 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 01:07:25,876 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 01:07:25,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 01:07:25,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 01:07:25,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:07:24" (1/3) ... [2024-11-10 01:07:25,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1e92ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:07:25, skipping insertion in model container [2024-11-10 01:07:25,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:24" (2/3) ... [2024-11-10 01:07:25,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1e92ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:07:25, skipping insertion in model container [2024-11-10 01:07:25,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:07:25" (3/3) ... [2024-11-10 01:07:25,882 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.05.cil-2.c [2024-11-10 01:07:25,894 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 01:07:25,894 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 01:07:25,945 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 01:07:25,950 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;@7a7f1692, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 01:07:25,950 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 01:07:25,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 383 states, 320 states have (on average 1.540625) internal successors, (493), 336 states have internal predecessors, (493), 37 states have call successors, (37), 15 states have call predecessors, (37), 15 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-10 01:07:25,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-10 01:07:25,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:07:25,967 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 01:07:25,967 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:07:25,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:07:25,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1095808161, now seen corresponding path program 1 times [2024-11-10 01:07:25,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:07:25,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152082952] [2024-11-10 01:07:25,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:07:25,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:07:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:26,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 01:07:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:26,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 01:07:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:26,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 01:07:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:26,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 01:07:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:26,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-10 01:07:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:26,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 01:07:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:26,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 01:07:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:26,424 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 01:07:26,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:07:26,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152082952] [2024-11-10 01:07:26,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152082952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:07:26,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:07:26,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 01:07:26,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849817332] [2024-11-10 01:07:26,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:07:26,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 01:07:26,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:07:26,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 01:07:26,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:07:26,451 INFO L87 Difference]: Start difference. First operand has 383 states, 320 states have (on average 1.540625) internal successors, (493), 336 states have internal predecessors, (493), 37 states have call successors, (37), 15 states have call predecessors, (37), 15 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) 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 01:07:26,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 01:07:26,757 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 01:07:26,760 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 132 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 01:07:26,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 179 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 01:07:26,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 01:07:26,763 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 01:07:26,766 INFO L158 Benchmark]: Toolchain (without parser) took 2135.25ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 68.9MB in the beginning and 102.3MB in the end (delta: -33.4MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2024-11-10 01:07:26,767 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 142.6MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 01:07:26,767 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.72ms. Allocated memory is still 142.6MB. Free memory was 68.6MB in the beginning and 45.1MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-10 01:07:26,767 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.01ms. Allocated memory is still 142.6MB. Free memory was 44.7MB in the beginning and 41.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 01:07:26,767 INFO L158 Benchmark]: Boogie Preprocessor took 80.44ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 41.3MB in the beginning and 146.7MB in the end (delta: -105.4MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-11-10 01:07:26,768 INFO L158 Benchmark]: IcfgBuilder took 746.96ms. Allocated memory is still 180.4MB. Free memory was 146.7MB in the beginning and 96.1MB in the end (delta: 50.6MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2024-11-10 01:07:26,770 INFO L158 Benchmark]: TraceAbstraction took 889.52ms. Allocated memory is still 180.4MB. Free memory was 96.1MB in the beginning and 102.3MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 01:07:26,772 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 142.6MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.72ms. Allocated memory is still 142.6MB. Free memory was 68.6MB in the beginning and 45.1MB in the end (delta: 23.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.01ms. Allocated memory is still 142.6MB. Free memory was 44.7MB in the beginning and 41.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.44ms. Allocated memory was 142.6MB in the beginning and 180.4MB in the end (delta: 37.7MB). Free memory was 41.3MB in the beginning and 146.7MB in the end (delta: -105.4MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * IcfgBuilder took 746.96ms. Allocated memory is still 180.4MB. Free memory was 146.7MB in the beginning and 96.1MB in the end (delta: 50.6MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. * TraceAbstraction took 889.52ms. Allocated memory is still 180.4MB. Free memory was 96.1MB in the beginning and 102.3MB in the end (delta: -6.2MB). 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 01:07:26,801 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_3.cil+token_ring.05.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 8067f6f3f9b2e7af84aa5945c9ed2ea4ff7d9ddfc1aa86a10fb4bb83ea8bdef8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 01:07:28,548 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 01:07:28,609 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-10 01:07:28,612 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 01:07:28,612 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 01:07:28,632 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 01:07:28,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 01:07:28,633 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 01:07:28,633 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 01:07:28,634 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 01:07:28,634 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 01:07:28,634 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 01:07:28,635 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 01:07:28,635 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 01:07:28,636 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 01:07:28,637 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 01:07:28,637 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 01:07:28,637 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 01:07:28,637 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 01:07:28,637 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 01:07:28,637 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 01:07:28,640 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 01:07:28,640 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 01:07:28,640 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 01:07:28,641 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-10 01:07:28,647 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 01:07:28,648 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-10 01:07:28,648 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 01:07:28,648 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 01:07:28,648 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 01:07:28,648 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 01:07:28,648 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 01:07:28,648 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 01:07:28,649 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 01:07:28,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:07:28,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 01:07:28,649 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 01:07:28,649 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 01:07:28,649 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-10 01:07:28,650 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-10 01:07:28,650 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 01:07:28,652 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 01:07:28,652 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 01:07:28,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 01:07:28,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8067f6f3f9b2e7af84aa5945c9ed2ea4ff7d9ddfc1aa86a10fb4bb83ea8bdef8 [2024-11-10 01:07:28,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 01:07:28,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 01:07:28,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 01:07:28,896 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 01:07:28,896 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 01:07:28,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-2.c [2024-11-10 01:07:30,138 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 01:07:30,332 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 01:07:30,336 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.05.cil-2.c [2024-11-10 01:07:30,355 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27c2b3f91/237d35b807a64ac98466d6d9cd595b8c/FLAGfea6ea892 [2024-11-10 01:07:30,369 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27c2b3f91/237d35b807a64ac98466d6d9cd595b8c [2024-11-10 01:07:30,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 01:07:30,372 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 01:07:30,374 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 01:07:30,374 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 01:07:30,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 01:07:30,379 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:07:30" (1/1) ... [2024-11-10 01:07:30,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@492da5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:30, skipping insertion in model container [2024-11-10 01:07:30,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:07:30" (1/1) ... [2024-11-10 01:07:30,416 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 01:07:30,561 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.05.cil-2.c[911,924] [2024-11-10 01:07:30,623 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.05.cil-2.c[8416,8429] [2024-11-10 01:07:30,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:07:30,699 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 01:07:30,708 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.05.cil-2.c[911,924] [2024-11-10 01:07:30,730 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.05.cil-2.c[8416,8429] [2024-11-10 01:07:30,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:07:30,782 INFO L204 MainTranslator]: Completed translation [2024-11-10 01:07:30,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:30 WrapperNode [2024-11-10 01:07:30,783 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 01:07:30,784 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 01:07:30,784 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 01:07:30,784 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 01:07:30,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:30" (1/1) ... [2024-11-10 01:07:30,801 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:30" (1/1) ... [2024-11-10 01:07:30,843 INFO L138 Inliner]: procedures = 66, calls = 77, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 653 [2024-11-10 01:07:30,843 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 01:07:30,844 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 01:07:30,848 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 01:07:30,848 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 01:07:30,859 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:30" (1/1) ... [2024-11-10 01:07:30,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:30" (1/1) ... [2024-11-10 01:07:30,863 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:30" (1/1) ... [2024-11-10 01:07:30,878 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 01:07:30,879 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:30" (1/1) ... [2024-11-10 01:07:30,879 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:30" (1/1) ... [2024-11-10 01:07:30,887 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:30" (1/1) ... [2024-11-10 01:07:30,888 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:30" (1/1) ... [2024-11-10 01:07:30,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:30" (1/1) ... [2024-11-10 01:07:30,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:30" (1/1) ... [2024-11-10 01:07:30,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 01:07:30,900 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 01:07:30,900 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 01:07:30,900 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 01:07:30,900 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:30" (1/1) ... [2024-11-10 01:07:30,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:07:30,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:07:30,921 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 01:07:30,923 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 01:07:30,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 01:07:30,952 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 01:07:30,952 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 01:07:30,952 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-10 01:07:30,952 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-10 01:07:30,952 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-10 01:07:30,952 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-10 01:07:30,952 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-10 01:07:30,952 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-10 01:07:30,952 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-10 01:07:30,953 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-10 01:07:30,953 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-10 01:07:30,953 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-10 01:07:30,953 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-10 01:07:30,956 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-10 01:07:30,956 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-10 01:07:30,956 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-10 01:07:30,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-10 01:07:30,956 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-10 01:07:30,956 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-10 01:07:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-10 01:07:30,957 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-10 01:07:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-10 01:07:30,957 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-10 01:07:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-10 01:07:30,957 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-10 01:07:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-10 01:07:30,957 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-10 01:07:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 01:07:30,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 01:07:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-10 01:07:30,957 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-10 01:07:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-10 01:07:30,957 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-10 01:07:31,046 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 01:07:31,048 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 01:07:31,570 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L225: do_read_c_~a~0#1 := ~a_t~0; [2024-11-10 01:07:31,570 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 01:07:31,570 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L226: assume !(1bv32 == ~q_free~0); [2024-11-10 01:07:31,684 INFO L? ?]: Removed 92 outVars from TransFormulas that were not future-live. [2024-11-10 01:07:31,684 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 01:07:31,709 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 01:07:31,710 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 01:07:31,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:07:31 BoogieIcfgContainer [2024-11-10 01:07:31,710 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 01:07:31,713 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 01:07:31,713 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 01:07:31,716 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 01:07:31,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:07:30" (1/3) ... [2024-11-10 01:07:31,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2470573e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:07:31, skipping insertion in model container [2024-11-10 01:07:31,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:07:30" (2/3) ... [2024-11-10 01:07:31,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2470573e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:07:31, skipping insertion in model container [2024-11-10 01:07:31,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:07:31" (3/3) ... [2024-11-10 01:07:31,719 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.05.cil-2.c [2024-11-10 01:07:31,732 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 01:07:31,733 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 01:07:31,793 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 01:07:31,798 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;@66ccd7e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 01:07:31,799 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 01:07:31,804 INFO L276 IsEmpty]: Start isEmpty. Operand has 383 states, 320 states have (on average 1.540625) internal successors, (493), 336 states have internal predecessors, (493), 37 states have call successors, (37), 15 states have call predecessors, (37), 15 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-10 01:07:31,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-10 01:07:31,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:07:31,816 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 01:07:31,816 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:07:31,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:07:31,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1095808161, now seen corresponding path program 1 times [2024-11-10 01:07:31,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 01:07:31,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932785028] [2024-11-10 01:07:31,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:07:31,833 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 01:07:31,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 01:07:31,836 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 01:07:31,852 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 01:07:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:07:31,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-10 01:07:31,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:07:32,037 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 01:07:32,037 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 01:07:32,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 01:07:32,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932785028] [2024-11-10 01:07:32,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932785028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:07:32,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:07:32,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 01:07:32,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448374953] [2024-11-10 01:07:32,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:07:32,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 01:07:32,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 01:07:32,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 01:07:32,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 01:07:32,070 INFO L87 Difference]: Start difference. First operand has 383 states, 320 states have (on average 1.540625) internal successors, (493), 336 states have internal predecessors, (493), 37 states have call successors, (37), 15 states have call predecessors, (37), 15 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) 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 01:07:32,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 01:07:32,208 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 01:07:32,211 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 71 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:07:32,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 160 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 01:07:32,218 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 01:07:32,417 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 01:07:32,418 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 01:07:32,421 INFO L158 Benchmark]: Toolchain (without parser) took 2048.81ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 41.5MB in the beginning and 38.6MB in the end (delta: 2.9MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2024-11-10 01:07:32,421 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 56.6MB. Free memory is still 30.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 01:07:32,422 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.47ms. Allocated memory is still 73.4MB. Free memory was 41.3MB in the beginning and 34.7MB in the end (delta: 6.6MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2024-11-10 01:07:32,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.06ms. Allocated memory is still 73.4MB. Free memory was 34.7MB in the beginning and 31.4MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 01:07:32,422 INFO L158 Benchmark]: Boogie Preprocessor took 55.55ms. Allocated memory is still 73.4MB. Free memory was 31.4MB in the beginning and 48.7MB in the end (delta: -17.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-10 01:07:32,423 INFO L158 Benchmark]: IcfgBuilder took 810.98ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 48.4MB in the beginning and 51.8MB in the end (delta: -3.4MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2024-11-10 01:07:32,423 INFO L158 Benchmark]: TraceAbstraction took 707.54ms. Allocated memory is still 92.3MB. Free memory was 51.3MB in the beginning and 38.6MB in the end (delta: 12.8MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2024-11-10 01:07:32,425 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 56.6MB. Free memory is still 30.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.47ms. Allocated memory is still 73.4MB. Free memory was 41.3MB in the beginning and 34.7MB in the end (delta: 6.6MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.06ms. Allocated memory is still 73.4MB. Free memory was 34.7MB in the beginning and 31.4MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.55ms. Allocated memory is still 73.4MB. Free memory was 31.4MB in the beginning and 48.7MB in the end (delta: -17.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * IcfgBuilder took 810.98ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 48.4MB in the beginning and 51.8MB in the end (delta: -3.4MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * TraceAbstraction took 707.54ms. Allocated memory is still 92.3MB. Free memory was 51.3MB in the beginning and 38.6MB in the end (delta: 12.8MB). Peak memory consumption was 13.3MB. 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 01:07:32,448 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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null