./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.11.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/Problem05_label43+token_ring.11.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 f02c38ef7caa0913e815c21ae4fcfcf6b07193a4f02fe1bf68067d0ca7ac604d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:27:03,616 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:27:03,700 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 00:27:03,708 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:27:03,708 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:27:03,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:27:03,740 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:27:03,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:27:03,742 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:27:03,743 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:27:03,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:27:03,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:27:03,748 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:27:03,749 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:27:03,750 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:27:03,750 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:27:03,750 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:27:03,751 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:27:03,751 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 00:27:03,753 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:27:03,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:27:03,753 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:27:03,754 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:27:03,754 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:27:03,754 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:27:03,755 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:27:03,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:27:03,755 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:27:03,755 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:27:03,756 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:27:03,756 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:27:03,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:27:03,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:27:03,757 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:27:03,758 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:27:03,758 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:27:03,759 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 00:27:03,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 00:27:03,759 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:27:03,760 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:27:03,760 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:27:03,761 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:27:03,761 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f02c38ef7caa0913e815c21ae4fcfcf6b07193a4f02fe1bf68067d0ca7ac604d [2024-11-10 00:27:04,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:27:04,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:27:04,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:27:04,065 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:27:04,065 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:27:04,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.11.cil-2.c [2024-11-10 00:27:05,581 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:27:06,278 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:27:06,279 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.11.cil-2.c [2024-11-10 00:27:06,355 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6cad5e24/3909759a7c6d440f8d2a216c6ecd6633/FLAGee4df4e0c [2024-11-10 00:27:06,374 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6cad5e24/3909759a7c6d440f8d2a216c6ecd6633 [2024-11-10 00:27:06,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:27:06,380 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:27:06,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:27:06,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:27:06,389 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:27:06,390 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:27:06" (1/1) ... [2024-11-10 00:27:06,391 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6121b578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:06, skipping insertion in model container [2024-11-10 00:27:06,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:27:06" (1/1) ... [2024-11-10 00:27:06,631 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:27:08,317 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/Problem05_label43+token_ring.11.cil-2.c[381679,381692] [2024-11-10 00:27:08,351 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/Problem05_label43+token_ring.11.cil-2.c[383339,383352] [2024-11-10 00:27:08,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:27:08,685 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:27:09,437 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/Problem05_label43+token_ring.11.cil-2.c[381679,381692] [2024-11-10 00:27:09,443 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/Problem05_label43+token_ring.11.cil-2.c[383339,383352] [2024-11-10 00:27:09,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:27:09,533 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:27:09,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:09 WrapperNode [2024-11-10 00:27:09,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:27:09,535 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:27:09,535 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:27:09,535 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:27:09,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:09" (1/1) ... [2024-11-10 00:27:09,689 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:09" (1/1) ... [2024-11-10 00:27:09,999 INFO L138 Inliner]: procedures = 66, calls = 74, calls flagged for inlining = 44, calls inlined = 44, statements flattened = 13158 [2024-11-10 00:27:09,999 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:27:10,000 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:27:10,000 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:27:10,000 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:27:10,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:09" (1/1) ... [2024-11-10 00:27:10,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:09" (1/1) ... [2024-11-10 00:27:10,184 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:09" (1/1) ... [2024-11-10 00:27:10,291 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 00:27:10,291 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:09" (1/1) ... [2024-11-10 00:27:10,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:09" (1/1) ... [2024-11-10 00:27:10,449 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:09" (1/1) ... [2024-11-10 00:27:10,476 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:09" (1/1) ... [2024-11-10 00:27:10,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:09" (1/1) ... [2024-11-10 00:27:10,598 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:09" (1/1) ... [2024-11-10 00:27:10,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:27:10,663 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:27:10,663 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:27:10,663 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:27:10,665 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:09" (1/1) ... [2024-11-10 00:27:10,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:27:10,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:27:10,721 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 00:27:10,724 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 00:27:10,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:27:10,790 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-10 00:27:10,790 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-10 00:27:10,790 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 00:27:10,794 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 00:27:10,794 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-10 00:27:10,794 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-10 00:27:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-10 00:27:10,795 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-10 00:27:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-10 00:27:10,795 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-10 00:27:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-10 00:27:10,795 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-10 00:27:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 00:27:10,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:27:10,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:27:11,043 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:27:11,054 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:27:20,770 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-10 00:27:20,772 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-10 00:27:20,772 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-10 00:27:20,772 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-10 00:27:20,773 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-10 00:27:20,774 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-10 00:27:20,774 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-10 00:27:21,535 INFO L? ?]: Removed 4815 outVars from TransFormulas that were not future-live. [2024-11-10 00:27:21,535 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:27:21,628 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:27:21,629 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:27:21,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:27:21 BoogieIcfgContainer [2024-11-10 00:27:21,630 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:27:21,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:27:21,634 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:27:21,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:27:21,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:27:06" (1/3) ... [2024-11-10 00:27:21,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29dcb6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:27:21, skipping insertion in model container [2024-11-10 00:27:21,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:09" (2/3) ... [2024-11-10 00:27:21,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29dcb6ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:27:21, skipping insertion in model container [2024-11-10 00:27:21,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:27:21" (3/3) ... [2024-11-10 00:27:21,646 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.11.cil-2.c [2024-11-10 00:27:21,666 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:27:21,667 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 00:27:21,835 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:27:21,842 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;@7850a1cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:27:21,842 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 00:27:21,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 2609 states, 2563 states have (on average 2.428014046039797) internal successors, (6223), 2578 states have internal predecessors, (6223), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-10 00:27:21,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-10 00:27:21,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:27:21,879 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:27:21,879 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:27:21,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:27:21,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1845717711, now seen corresponding path program 1 times [2024-11-10 00:27:21,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:27:21,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076272185] [2024-11-10 00:27:21,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:27:21,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:27:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:22,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-10 00:27:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:22,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 00:27:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:22,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 00:27:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:22,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-10 00:27:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:22,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-10 00:27:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:22,849 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 00:27:22,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:27:22,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076272185] [2024-11-10 00:27:22,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076272185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:27:22,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:27:22,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 00:27:22,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763005883] [2024-11-10 00:27:22,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:27:22,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 00:27:22,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:27:22,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 00:27:22,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 00:27:22,917 INFO L87 Difference]: Start difference. First operand has 2609 states, 2563 states have (on average 2.428014046039797) internal successors, (6223), 2578 states have internal predecessors, (6223), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 4 states have internal predecessors, (160), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 00:27:23,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:27:23,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:27:23,496 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 273 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 00:27:23,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 574 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 00:27:23,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 00:27:23,500 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 00:27:23,506 INFO L158 Benchmark]: Toolchain (without parser) took 17125.81ms. Allocated memory was 165.7MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 76.7MB in the beginning and 889.3MB in the end (delta: -812.6MB). Peak memory consumption was 205.2MB. Max. memory is 16.1GB. [2024-11-10 00:27:23,508 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 165.7MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 00:27:23,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3152.50ms. Allocated memory was 165.7MB in the beginning and 253.8MB in the end (delta: 88.1MB). Free memory was 76.1MB in the beginning and 90.2MB in the end (delta: -14.0MB). Peak memory consumption was 88.9MB. Max. memory is 16.1GB. [2024-11-10 00:27:23,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 464.54ms. Allocated memory is still 253.8MB. Free memory was 90.2MB in the beginning and 81.8MB in the end (delta: 8.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-10 00:27:23,510 INFO L158 Benchmark]: Boogie Preprocessor took 661.27ms. Allocated memory was 253.8MB in the beginning and 476.1MB in the end (delta: 222.3MB). Free memory was 81.8MB in the beginning and 316.7MB in the end (delta: -234.9MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-11-10 00:27:23,511 INFO L158 Benchmark]: IcfgBuilder took 10967.14ms. Allocated memory was 476.1MB in the beginning and 1.2GB in the end (delta: 706.7MB). Free memory was 316.7MB in the beginning and 563.2MB in the end (delta: -246.5MB). Peak memory consumption was 461.2MB. Max. memory is 16.1GB. [2024-11-10 00:27:23,511 INFO L158 Benchmark]: TraceAbstraction took 1872.00ms. Allocated memory is still 1.2GB. Free memory was 562.2MB in the beginning and 889.3MB in the end (delta: -327.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 00:27:23,515 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 165.7MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3152.50ms. Allocated memory was 165.7MB in the beginning and 253.8MB in the end (delta: 88.1MB). Free memory was 76.1MB in the beginning and 90.2MB in the end (delta: -14.0MB). Peak memory consumption was 88.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 464.54ms. Allocated memory is still 253.8MB. Free memory was 90.2MB in the beginning and 81.8MB in the end (delta: 8.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 661.27ms. Allocated memory was 253.8MB in the beginning and 476.1MB in the end (delta: 222.3MB). Free memory was 81.8MB in the beginning and 316.7MB in the end (delta: -234.9MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * IcfgBuilder took 10967.14ms. Allocated memory was 476.1MB in the beginning and 1.2GB in the end (delta: 706.7MB). Free memory was 316.7MB in the beginning and 563.2MB in the end (delta: -246.5MB). Peak memory consumption was 461.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1872.00ms. Allocated memory is still 1.2GB. Free memory was 562.2MB in the beginning and 889.3MB in the end (delta: -327.2MB). 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 00:27:23,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.11.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 f02c38ef7caa0913e815c21ae4fcfcf6b07193a4f02fe1bf68067d0ca7ac604d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:27:26,006 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:27:26,095 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-10 00:27:26,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:27:26,102 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:27:26,133 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:27:26,133 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:27:26,134 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:27:26,135 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:27:26,135 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:27:26,135 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:27:26,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:27:26,138 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:27:26,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:27:26,138 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:27:26,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:27:26,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:27:26,139 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:27:26,140 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:27:26,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:27:26,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:27:26,144 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:27:26,144 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:27:26,145 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 00:27:26,147 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-10 00:27:26,148 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:27:26,148 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-10 00:27:26,148 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:27:26,149 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:27:26,149 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:27:26,150 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:27:26,150 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:27:26,151 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:27:26,151 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:27:26,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:27:26,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:27:26,152 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:27:26,152 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:27:26,152 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-10 00:27:26,153 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-10 00:27:26,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:27:26,153 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:27:26,153 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:27:26,153 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:27:26,154 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f02c38ef7caa0913e815c21ae4fcfcf6b07193a4f02fe1bf68067d0ca7ac604d [2024-11-10 00:27:26,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:27:26,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:27:26,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:27:26,538 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:27:26,539 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:27:26,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.11.cil-2.c [2024-11-10 00:27:28,160 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:27:28,948 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:27:28,950 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.11.cil-2.c [2024-11-10 00:27:29,019 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/460dee2f5/40b090d5ecc143b589fc45ba76fe98d3/FLAG40c44ab2a [2024-11-10 00:27:29,035 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/460dee2f5/40b090d5ecc143b589fc45ba76fe98d3 [2024-11-10 00:27:29,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:27:29,042 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:27:29,046 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:27:29,046 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:27:29,051 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:27:29,052 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:27:29" (1/1) ... [2024-11-10 00:27:29,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359c1fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:29, skipping insertion in model container [2024-11-10 00:27:29,053 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:27:29" (1/1) ... [2024-11-10 00:27:29,293 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:27:30,909 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/Problem05_label43+token_ring.11.cil-2.c[381679,381692] [2024-11-10 00:27:30,940 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/Problem05_label43+token_ring.11.cil-2.c[383339,383352] [2024-11-10 00:27:31,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:27:31,328 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:27:32,161 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/Problem05_label43+token_ring.11.cil-2.c[381679,381692] [2024-11-10 00:27:32,166 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/Problem05_label43+token_ring.11.cil-2.c[383339,383352] [2024-11-10 00:27:32,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:27:32,294 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:27:32,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:32 WrapperNode [2024-11-10 00:27:32,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:27:32,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:27:32,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:27:32,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:27:32,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:32" (1/1) ... [2024-11-10 00:27:32,449 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:32" (1/1) ... [2024-11-10 00:27:33,052 INFO L138 Inliner]: procedures = 67, calls = 74, calls flagged for inlining = 44, calls inlined = 44, statements flattened = 13118 [2024-11-10 00:27:33,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:27:33,053 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:27:33,053 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:27:33,053 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:27:33,072 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:32" (1/1) ... [2024-11-10 00:27:33,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:32" (1/1) ... [2024-11-10 00:27:33,193 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:32" (1/1) ... [2024-11-10 00:27:33,327 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 00:27:33,331 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:32" (1/1) ... [2024-11-10 00:27:33,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:32" (1/1) ... [2024-11-10 00:27:33,476 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:32" (1/1) ... [2024-11-10 00:27:33,504 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:32" (1/1) ... [2024-11-10 00:27:33,534 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:32" (1/1) ... [2024-11-10 00:27:33,556 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:32" (1/1) ... [2024-11-10 00:27:33,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:27:33,734 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:27:33,738 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:27:33,738 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:27:33,739 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:32" (1/1) ... [2024-11-10 00:27:33,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:27:33,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:27:33,779 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 00:27:33,782 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 00:27:33,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:27:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-10 00:27:33,867 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-10 00:27:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-10 00:27:33,867 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-10 00:27:33,867 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-10 00:27:33,868 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-10 00:27:33,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-10 00:27:33,868 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-10 00:27:33,868 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-10 00:27:33,868 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-10 00:27:33,868 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-10 00:27:33,868 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-10 00:27:33,869 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-10 00:27:33,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:27:33,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:27:34,054 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:27:34,057 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:27:46,808 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2024-11-10 00:27:46,809 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2024-11-10 00:27:46,809 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2024-11-10 00:27:46,810 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2024-11-10 00:27:46,811 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2024-11-10 00:27:46,811 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2024-11-10 00:27:46,811 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2024-11-10 00:27:47,727 INFO L? ?]: Removed 4815 outVars from TransFormulas that were not future-live. [2024-11-10 00:27:47,727 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:27:47,803 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:27:47,804 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:27:47,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:27:47 BoogieIcfgContainer [2024-11-10 00:27:47,805 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:27:47,808 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:27:47,808 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:27:47,812 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:27:47,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:27:29" (1/3) ... [2024-11-10 00:27:47,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419d206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:27:47, skipping insertion in model container [2024-11-10 00:27:47,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:27:32" (2/3) ... [2024-11-10 00:27:47,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419d206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:27:47, skipping insertion in model container [2024-11-10 00:27:47,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:27:47" (3/3) ... [2024-11-10 00:27:47,817 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.11.cil-2.c [2024-11-10 00:27:47,835 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:27:47,835 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 00:27:47,989 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:27:47,998 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;@77a49514, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:27:47,998 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 00:27:48,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 2609 states, 2563 states have (on average 2.428014046039797) internal successors, (6223), 2578 states have internal predecessors, (6223), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-10 00:27:48,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-10 00:27:48,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:27:48,043 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:27:48,044 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:27:48,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:27:48,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1845717711, now seen corresponding path program 1 times [2024-11-10 00:27:48,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-10 00:27:48,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407485352] [2024-11-10 00:27:48,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:27:48,069 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 00:27:48,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-10 00:27:48,073 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 00:27:48,076 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 00:27:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:27:48,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 00:27:48,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:27:48,649 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 00:27:48,651 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 00:27:48,652 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-10 00:27:48,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407485352] [2024-11-10 00:27:48,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1407485352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:27:48,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:27:48,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:27:48,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101419661] [2024-11-10 00:27:48,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:27:48,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:27:48,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-10 00:27:48,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:27:48,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:27:48,702 INFO L87 Difference]: Start difference. First operand has 2609 states, 2563 states have (on average 2.428014046039797) internal successors, (6223), 2578 states have internal predecessors, (6223), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 00:27:48,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 00:27:48,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 166 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 00:27:48,835 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 240 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:27:48,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 543 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:27:48,848 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 00:27:49,038 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 00:27:49,040 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 00:27:49,044 INFO L158 Benchmark]: Toolchain (without parser) took 20002.56ms. Allocated memory was 79.7MB in the beginning and 3.1GB in the end (delta: 3.1GB). Free memory was 36.0MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 237.2MB. Max. memory is 16.1GB. [2024-11-10 00:27:49,045 INFO L158 Benchmark]: CDTParser took 1.13ms. Allocated memory is still 62.9MB. Free memory was 39.3MB in the beginning and 39.2MB in the end (delta: 92.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 00:27:49,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3250.01ms. Allocated memory was 79.7MB in the beginning and 186.6MB in the end (delta: 107.0MB). Free memory was 35.7MB in the beginning and 84.1MB in the end (delta: -48.5MB). Peak memory consumption was 105.2MB. Max. memory is 16.1GB. [2024-11-10 00:27:49,046 INFO L158 Benchmark]: Boogie Procedure Inliner took 755.78ms. Allocated memory was 186.6MB in the beginning and 325.1MB in the end (delta: 138.4MB). Free memory was 84.1MB in the beginning and 182.5MB in the end (delta: -98.3MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2024-11-10 00:27:49,046 INFO L158 Benchmark]: Boogie Preprocessor took 680.53ms. Allocated memory is still 325.1MB. Free memory was 182.5MB in the beginning and 166.5MB in the end (delta: 15.9MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2024-11-10 00:27:49,047 INFO L158 Benchmark]: IcfgBuilder took 14070.85ms. Allocated memory was 325.1MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 166.4MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 564.0MB. Max. memory is 16.1GB. [2024-11-10 00:27:49,047 INFO L158 Benchmark]: TraceAbstraction took 1235.36ms. Allocated memory is still 3.1GB. Free memory was 2.9GB in the beginning and 2.9GB in the end (delta: 79.7MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2024-11-10 00:27:49,051 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.13ms. Allocated memory is still 62.9MB. Free memory was 39.3MB in the beginning and 39.2MB in the end (delta: 92.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3250.01ms. Allocated memory was 79.7MB in the beginning and 186.6MB in the end (delta: 107.0MB). Free memory was 35.7MB in the beginning and 84.1MB in the end (delta: -48.5MB). Peak memory consumption was 105.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 755.78ms. Allocated memory was 186.6MB in the beginning and 325.1MB in the end (delta: 138.4MB). Free memory was 84.1MB in the beginning and 182.5MB in the end (delta: -98.3MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 680.53ms. Allocated memory is still 325.1MB. Free memory was 182.5MB in the beginning and 166.5MB in the end (delta: 15.9MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. * IcfgBuilder took 14070.85ms. Allocated memory was 325.1MB in the beginning and 3.1GB in the end (delta: 2.8GB). Free memory was 166.4MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 564.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1235.36ms. Allocated memory is still 3.1GB. Free memory was 2.9GB in the beginning and 2.9GB in the end (delta: 79.7MB). Peak memory consumption was 79.7MB. 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 00:27:49,081 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