./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 14:21:43,197 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 14:21:43,251 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 14:21:43,255 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 14:21:43,255 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 14:21:43,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 14:21:43,274 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 14:21:43,275 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 14:21:43,275 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 14:21:43,276 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 14:21:43,276 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 14:21:43,276 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 14:21:43,277 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 14:21:43,277 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 14:21:43,278 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 14:21:43,278 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 14:21:43,278 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 14:21:43,279 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 14:21:43,279 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 14:21:43,279 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 14:21:43,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 14:21:43,280 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 14:21:43,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 14:21:43,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 14:21:43,281 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 14:21:43,282 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 14:21:43,282 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 14:21:43,282 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 14:21:43,283 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 14:21:43,283 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 14:21:43,283 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 14:21:43,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 14:21:43,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:21:43,284 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 14:21:43,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 14:21:43,285 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 14:21:43,285 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 14:21:43,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 14:21:43,285 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 14:21:43,286 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 14:21:43,286 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 14:21:43,288 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 14:21:43,288 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2024-10-11 14:21:43,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 14:21:43,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 14:21:43,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 14:21:43,578 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 14:21:43,579 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 14:21:43,580 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-10-11 14:21:44,990 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 14:21:45,226 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 14:21:45,227 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-10-11 14:21:45,245 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/935215248/a7287ab7de9c48a8b3672d8c1c5fa25c/FLAG750d6ce00 [2024-10-11 14:21:45,574 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/935215248/a7287ab7de9c48a8b3672d8c1c5fa25c [2024-10-11 14:21:45,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 14:21:45,578 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 14:21:45,580 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 14:21:45,580 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 14:21:45,586 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 14:21:45,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:45" (1/1) ... [2024-10-11 14:21:45,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f06ae04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:45, skipping insertion in model container [2024-10-11 14:21:45,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:45" (1/1) ... [2024-10-11 14:21:45,642 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 14:21:45,832 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2024-10-11 14:21:45,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:21:46,003 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 14:21:46,019 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2024-10-11 14:21:46,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:21:46,114 INFO L204 MainTranslator]: Completed translation [2024-10-11 14:21:46,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:46 WrapperNode [2024-10-11 14:21:46,115 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 14:21:46,116 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 14:21:46,117 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 14:21:46,117 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 14:21:46,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:46" (1/1) ... [2024-10-11 14:21:46,141 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:46" (1/1) ... [2024-10-11 14:21:46,168 INFO L138 Inliner]: procedures = 163, calls = 54, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 109 [2024-10-11 14:21:46,171 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 14:21:46,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 14:21:46,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 14:21:46,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 14:21:46,182 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:46" (1/1) ... [2024-10-11 14:21:46,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:46" (1/1) ... [2024-10-11 14:21:46,186 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:46" (1/1) ... [2024-10-11 14:21:46,213 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-10-11 14:21:46,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:46" (1/1) ... [2024-10-11 14:21:46,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:46" (1/1) ... [2024-10-11 14:21:46,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:46" (1/1) ... [2024-10-11 14:21:46,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:46" (1/1) ... [2024-10-11 14:21:46,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:46" (1/1) ... [2024-10-11 14:21:46,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:46" (1/1) ... [2024-10-11 14:21:46,237 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 14:21:46,238 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 14:21:46,238 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 14:21:46,239 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 14:21:46,240 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:46" (1/1) ... [2024-10-11 14:21:46,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:21:46,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:21:46,275 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 14:21:46,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 14:21:46,324 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-11 14:21:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-11 14:21:46,324 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 14:21:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 14:21:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 14:21:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 14:21:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 14:21:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 14:21:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 14:21:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 14:21:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 14:21:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 14:21:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 14:21:46,327 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 14:21:46,453 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 14:21:46,456 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 14:21:46,804 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 14:21:46,804 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 14:21:46,973 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 14:21:46,974 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 14:21:46,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:46 BoogieIcfgContainer [2024-10-11 14:21:46,974 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 14:21:46,976 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 14:21:46,976 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 14:21:46,980 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 14:21:46,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:21:45" (1/3) ... [2024-10-11 14:21:46,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e64b94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:46, skipping insertion in model container [2024-10-11 14:21:46,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:46" (2/3) ... [2024-10-11 14:21:46,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e64b94e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:46, skipping insertion in model container [2024-10-11 14:21:46,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:46" (3/3) ... [2024-10-11 14:21:46,983 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2024-10-11 14:21:46,996 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 14:21:46,996 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-11 14:21:46,996 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 14:21:47,043 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 14:21:47,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 80 transitions, 174 flow [2024-10-11 14:21:47,135 INFO L124 PetriNetUnfolderBase]: 4/78 cut-off events. [2024-10-11 14:21:47,136 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 14:21:47,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 78 events. 4/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2024-10-11 14:21:47,142 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 80 transitions, 174 flow [2024-10-11 14:21:47,147 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 68 transitions, 142 flow [2024-10-11 14:21:47,161 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:21:47,171 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;@3dc61de2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:21:47,172 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-11 14:21:47,187 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 14:21:47,187 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-10-11 14:21:47,187 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 14:21:47,188 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:21:47,188 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:21:47,189 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-11 14:21:47,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:21:47,194 INFO L85 PathProgramCache]: Analyzing trace with hash 2021764380, now seen corresponding path program 1 times [2024-10-11 14:21:47,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:21:47,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045045381] [2024-10-11 14:21:47,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:21:47,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:21:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:21:47,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:21:47,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:21:47,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045045381] [2024-10-11 14:21:47,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045045381] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:21:47,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:21:47,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:21:47,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454903020] [2024-10-11 14:21:47,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:21:47,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:21:47,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:21:47,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:21:47,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:21:47,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 80 [2024-10-11 14:21:47,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:21:47,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:21:47,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 80 [2024-10-11 14:21:47,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:21:48,775 INFO L124 PetriNetUnfolderBase]: 4727/8284 cut-off events. [2024-10-11 14:21:48,776 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-11 14:21:48,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15778 conditions, 8284 events. 4727/8284 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 56753 event pairs, 1134 based on Foata normal form. 340/8373 useless extension candidates. Maximal degree in co-relation 15768. Up to 4568 conditions per place. [2024-10-11 14:21:48,835 INFO L140 encePairwiseOnDemand]: 63/80 looper letters, 93 selfloop transitions, 15 changer transitions 1/127 dead transitions. [2024-10-11 14:21:48,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 127 transitions, 481 flow [2024-10-11 14:21:48,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:21:48,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 14:21:48,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 229 transitions. [2024-10-11 14:21:48,850 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5725 [2024-10-11 14:21:48,852 INFO L175 Difference]: Start difference. First operand has 72 places, 68 transitions, 142 flow. Second operand 5 states and 229 transitions. [2024-10-11 14:21:48,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 127 transitions, 481 flow [2024-10-11 14:21:48,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 127 transitions, 478 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 14:21:48,862 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 234 flow [2024-10-11 14:21:48,865 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=234, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2024-10-11 14:21:48,871 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 6 predicate places. [2024-10-11 14:21:48,871 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 234 flow [2024-10-11 14:21:48,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:21:48,872 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:21:48,872 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:21:48,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 14:21:48,872 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-11 14:21:48,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:21:48,873 INFO L85 PathProgramCache]: Analyzing trace with hash -438640011, now seen corresponding path program 1 times [2024-10-11 14:21:48,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:21:48,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440295081] [2024-10-11 14:21:48,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:21:48,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:21:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:21:49,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:21:49,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:21:49,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440295081] [2024-10-11 14:21:49,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440295081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:21:49,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:21:49,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:21:49,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960380390] [2024-10-11 14:21:49,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:21:49,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:21:49,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:21:49,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:21:49,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:21:49,080 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 80 [2024-10-11 14:21:49,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 234 flow. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:21:49,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:21:49,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 80 [2024-10-11 14:21:49,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:21:49,586 INFO L124 PetriNetUnfolderBase]: 1727/3846 cut-off events. [2024-10-11 14:21:49,587 INFO L125 PetriNetUnfolderBase]: For 732/760 co-relation queries the response was YES. [2024-10-11 14:21:49,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8072 conditions, 3846 events. 1727/3846 cut-off events. For 732/760 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 26828 event pairs, 443 based on Foata normal form. 210/4048 useless extension candidates. Maximal degree in co-relation 8058. Up to 2236 conditions per place. [2024-10-11 14:21:49,613 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 81 selfloop transitions, 6 changer transitions 0/115 dead transitions. [2024-10-11 14:21:49,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 115 transitions, 534 flow [2024-10-11 14:21:49,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:21:49,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 14:21:49,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 198 transitions. [2024-10-11 14:21:49,616 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.61875 [2024-10-11 14:21:49,616 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 234 flow. Second operand 4 states and 198 transitions. [2024-10-11 14:21:49,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 115 transitions, 534 flow [2024-10-11 14:21:49,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 115 transitions, 530 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-10-11 14:21:49,635 INFO L231 Difference]: Finished difference. Result has 82 places, 77 transitions, 259 flow [2024-10-11 14:21:49,636 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=259, PETRI_PLACES=82, PETRI_TRANSITIONS=77} [2024-10-11 14:21:49,636 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 10 predicate places. [2024-10-11 14:21:49,637 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 77 transitions, 259 flow [2024-10-11 14:21:49,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:21:49,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:21:49,637 INFO L204 CegarLoopForPetriNet]: 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] [2024-10-11 14:21:49,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 14:21:49,638 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-11 14:21:49,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:21:49,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1475903510, now seen corresponding path program 1 times [2024-10-11 14:21:49,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:21:49,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506671634] [2024-10-11 14:21:49,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:21:49,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:21:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:21:49,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:21:49,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:21:49,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506671634] [2024-10-11 14:21:49,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506671634] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:21:49,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:21:49,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:21:49,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547231265] [2024-10-11 14:21:49,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:21:49,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:21:49,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:21:49,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:21:49,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:21:49,849 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 80 [2024-10-11 14:21:49,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 77 transitions, 259 flow. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:21:49,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:21:49,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 80 [2024-10-11 14:21:49,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:21:50,534 INFO L124 PetriNetUnfolderBase]: 2209/4344 cut-off events. [2024-10-11 14:21:50,535 INFO L125 PetriNetUnfolderBase]: For 1268/1268 co-relation queries the response was YES. [2024-10-11 14:21:50,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9983 conditions, 4344 events. 2209/4344 cut-off events. For 1268/1268 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 28153 event pairs, 1239 based on Foata normal form. 100/4433 useless extension candidates. Maximal degree in co-relation 9966. Up to 2338 conditions per place. [2024-10-11 14:21:50,563 INFO L140 encePairwiseOnDemand]: 65/80 looper letters, 91 selfloop transitions, 23 changer transitions 5/137 dead transitions. [2024-10-11 14:21:50,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 137 transitions, 691 flow [2024-10-11 14:21:50,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 14:21:50,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 14:21:50,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 241 transitions. [2024-10-11 14:21:50,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5020833333333333 [2024-10-11 14:21:50,565 INFO L175 Difference]: Start difference. First operand has 82 places, 77 transitions, 259 flow. Second operand 6 states and 241 transitions. [2024-10-11 14:21:50,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 137 transitions, 691 flow [2024-10-11 14:21:50,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 137 transitions, 690 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 14:21:50,575 INFO L231 Difference]: Finished difference. Result has 88 places, 86 transitions, 395 flow [2024-10-11 14:21:50,576 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=395, PETRI_PLACES=88, PETRI_TRANSITIONS=86} [2024-10-11 14:21:50,577 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 16 predicate places. [2024-10-11 14:21:50,577 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 86 transitions, 395 flow [2024-10-11 14:21:50,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:21:50,577 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:21:50,578 INFO L204 CegarLoopForPetriNet]: 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] [2024-10-11 14:21:50,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 14:21:50,578 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-11 14:21:50,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:21:50,578 INFO L85 PathProgramCache]: Analyzing trace with hash 777584119, now seen corresponding path program 1 times [2024-10-11 14:21:50,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:21:50,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557241088] [2024-10-11 14:21:50,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:21:50,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:21:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:21:50,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:21:50,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:21:50,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557241088] [2024-10-11 14:21:50,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557241088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:21:50,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:21:50,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:21:50,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882397098] [2024-10-11 14:21:50,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:21:50,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:21:50,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:21:50,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:21:50,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:21:50,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 80 [2024-10-11 14:21:50,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 86 transitions, 395 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:21:50,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:21:50,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 80 [2024-10-11 14:21:50,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:21:51,276 INFO L124 PetriNetUnfolderBase]: 2035/4101 cut-off events. [2024-10-11 14:21:51,276 INFO L125 PetriNetUnfolderBase]: For 2953/2953 co-relation queries the response was YES. [2024-10-11 14:21:51,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10325 conditions, 4101 events. 2035/4101 cut-off events. For 2953/2953 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 26734 event pairs, 608 based on Foata normal form. 44/4140 useless extension candidates. Maximal degree in co-relation 10305. Up to 2599 conditions per place. [2024-10-11 14:21:51,304 INFO L140 encePairwiseOnDemand]: 70/80 looper letters, 96 selfloop transitions, 31 changer transitions 1/146 dead transitions. [2024-10-11 14:21:51,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 146 transitions, 934 flow [2024-10-11 14:21:51,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:21:51,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 14:21:51,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 210 transitions. [2024-10-11 14:21:51,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.525 [2024-10-11 14:21:51,306 INFO L175 Difference]: Start difference. First operand has 88 places, 86 transitions, 395 flow. Second operand 5 states and 210 transitions. [2024-10-11 14:21:51,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 146 transitions, 934 flow [2024-10-11 14:21:51,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 146 transitions, 902 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-10-11 14:21:51,318 INFO L231 Difference]: Finished difference. Result has 94 places, 99 transitions, 601 flow [2024-10-11 14:21:51,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=601, PETRI_PLACES=94, PETRI_TRANSITIONS=99} [2024-10-11 14:21:51,321 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 22 predicate places. [2024-10-11 14:21:51,321 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 99 transitions, 601 flow [2024-10-11 14:21:51,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:21:51,322 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:21:51,322 INFO L204 CegarLoopForPetriNet]: 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] [2024-10-11 14:21:51,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 14:21:51,324 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-11 14:21:51,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:21:51,324 INFO L85 PathProgramCache]: Analyzing trace with hash 436686877, now seen corresponding path program 1 times [2024-10-11 14:21:51,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:21:51,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326970983] [2024-10-11 14:21:51,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:21:51,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:21:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:21:51,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:21:51,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:21:51,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326970983] [2024-10-11 14:21:51,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326970983] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:21:51,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:21:51,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:21:51,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522597096] [2024-10-11 14:21:51,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:21:51,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:21:51,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:21:51,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:21:51,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:21:51,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 80 [2024-10-11 14:21:51,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 99 transitions, 601 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:21:51,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:21:51,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 80 [2024-10-11 14:21:51,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:21:51,848 INFO L124 PetriNetUnfolderBase]: 1075/2454 cut-off events. [2024-10-11 14:21:51,849 INFO L125 PetriNetUnfolderBase]: For 2172/2184 co-relation queries the response was YES. [2024-10-11 14:21:51,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6846 conditions, 2454 events. 1075/2454 cut-off events. For 2172/2184 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 15676 event pairs, 363 based on Foata normal form. 288/2710 useless extension candidates. Maximal degree in co-relation 6822. Up to 1214 conditions per place. [2024-10-11 14:21:51,866 INFO L140 encePairwiseOnDemand]: 63/80 looper letters, 65 selfloop transitions, 17 changer transitions 2/119 dead transitions. [2024-10-11 14:21:51,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 119 transitions, 831 flow [2024-10-11 14:21:51,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:21:51,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 14:21:51,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 191 transitions. [2024-10-11 14:21:51,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.596875 [2024-10-11 14:21:51,868 INFO L175 Difference]: Start difference. First operand has 94 places, 99 transitions, 601 flow. Second operand 4 states and 191 transitions. [2024-10-11 14:21:51,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 119 transitions, 831 flow [2024-10-11 14:21:51,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 119 transitions, 811 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 14:21:51,884 INFO L231 Difference]: Finished difference. Result has 97 places, 99 transitions, 607 flow [2024-10-11 14:21:51,884 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=607, PETRI_PLACES=97, PETRI_TRANSITIONS=99} [2024-10-11 14:21:51,885 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 25 predicate places. [2024-10-11 14:21:51,885 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 99 transitions, 607 flow [2024-10-11 14:21:51,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:21:51,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:21:51,886 INFO L204 CegarLoopForPetriNet]: 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] [2024-10-11 14:21:51,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 14:21:51,887 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-11 14:21:51,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:21:51,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1206905261, now seen corresponding path program 1 times [2024-10-11 14:21:51,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:21:51,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334329210] [2024-10-11 14:21:51,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:21:51,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:21:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:21:52,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:21:52,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:21:52,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334329210] [2024-10-11 14:21:52,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334329210] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:21:52,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:21:52,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:21:52,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982305405] [2024-10-11 14:21:52,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:21:52,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:21:52,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:21:52,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:21:52,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:21:52,226 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 80 [2024-10-11 14:21:52,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 99 transitions, 607 flow. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:21:52,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:21:52,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 80 [2024-10-11 14:21:52,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:21:52,531 INFO L124 PetriNetUnfolderBase]: 790/1941 cut-off events. [2024-10-11 14:21:52,531 INFO L125 PetriNetUnfolderBase]: For 2171/2175 co-relation queries the response was YES. [2024-10-11 14:21:52,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5923 conditions, 1941 events. 790/1941 cut-off events. For 2171/2175 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 11871 event pairs, 223 based on Foata normal form. 62/1999 useless extension candidates. Maximal degree in co-relation 5897. Up to 1397 conditions per place. [2024-10-11 14:21:52,540 INFO L140 encePairwiseOnDemand]: 76/80 looper letters, 59 selfloop transitions, 6 changer transitions 11/99 dead transitions. [2024-10-11 14:21:52,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 99 transitions, 713 flow [2024-10-11 14:21:52,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:21:52,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 14:21:52,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 174 transitions. [2024-10-11 14:21:52,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.54375 [2024-10-11 14:21:52,542 INFO L175 Difference]: Start difference. First operand has 97 places, 99 transitions, 607 flow. Second operand 4 states and 174 transitions. [2024-10-11 14:21:52,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 99 transitions, 713 flow [2024-10-11 14:21:52,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 99 transitions, 632 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-10-11 14:21:52,549 INFO L231 Difference]: Finished difference. Result has 86 places, 74 transitions, 390 flow [2024-10-11 14:21:52,550 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=390, PETRI_PLACES=86, PETRI_TRANSITIONS=74} [2024-10-11 14:21:52,550 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 14 predicate places. [2024-10-11 14:21:52,551 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 74 transitions, 390 flow [2024-10-11 14:21:52,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:21:52,551 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:21:52,551 INFO L204 CegarLoopForPetriNet]: 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] [2024-10-11 14:21:52,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 14:21:52,552 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-11 14:21:52,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:21:52,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1614080330, now seen corresponding path program 1 times [2024-10-11 14:21:52,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:21:52,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85073570] [2024-10-11 14:21:52,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:21:52,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:21:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:21:52,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:21:52,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:21:52,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85073570] [2024-10-11 14:21:52,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85073570] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:21:52,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:21:52,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 14:21:52,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124925040] [2024-10-11 14:21:52,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:21:52,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 14:21:52,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:21:52,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 14:21:52,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-11 14:21:52,777 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 80 [2024-10-11 14:21:52,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 74 transitions, 390 flow. Second operand has 6 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:21:52,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:21:52,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 80 [2024-10-11 14:21:52,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:21:52,966 INFO L124 PetriNetUnfolderBase]: 537/1307 cut-off events. [2024-10-11 14:21:52,966 INFO L125 PetriNetUnfolderBase]: For 1276/1276 co-relation queries the response was YES. [2024-10-11 14:21:52,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3736 conditions, 1307 events. 537/1307 cut-off events. For 1276/1276 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7017 event pairs, 215 based on Foata normal form. 47/1351 useless extension candidates. Maximal degree in co-relation 3712. Up to 691 conditions per place. [2024-10-11 14:21:52,974 INFO L140 encePairwiseOnDemand]: 76/80 looper letters, 64 selfloop transitions, 5 changer transitions 4/94 dead transitions. [2024-10-11 14:21:52,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 94 transitions, 644 flow [2024-10-11 14:21:52,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:21:52,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 14:21:52,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 173 transitions. [2024-10-11 14:21:52,976 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.540625 [2024-10-11 14:21:52,976 INFO L175 Difference]: Start difference. First operand has 86 places, 74 transitions, 390 flow. Second operand 4 states and 173 transitions. [2024-10-11 14:21:52,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 94 transitions, 644 flow [2024-10-11 14:21:52,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 94 transitions, 586 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-10-11 14:21:52,982 INFO L231 Difference]: Finished difference. Result has 77 places, 69 transitions, 319 flow [2024-10-11 14:21:52,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=319, PETRI_PLACES=77, PETRI_TRANSITIONS=69} [2024-10-11 14:21:52,983 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 5 predicate places. [2024-10-11 14:21:52,983 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 69 transitions, 319 flow [2024-10-11 14:21:52,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:21:52,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:21:52,984 INFO L204 CegarLoopForPetriNet]: 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] [2024-10-11 14:21:52,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 14:21:52,984 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-11 14:21:52,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:21:52,985 INFO L85 PathProgramCache]: Analyzing trace with hash 782609403, now seen corresponding path program 1 times [2024-10-11 14:21:52,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:21:52,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961661891] [2024-10-11 14:21:52,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:21:52,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:21:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:21:53,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:21:53,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:21:53,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961661891] [2024-10-11 14:21:53,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961661891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:21:53,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:21:53,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:21:53,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278904309] [2024-10-11 14:21:53,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:21:53,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:21:53,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:21:53,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:21:53,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:21:53,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 80 [2024-10-11 14:21:53,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 69 transitions, 319 flow. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:21:53,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:21:53,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 80 [2024-10-11 14:21:53,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:21:53,398 INFO L124 PetriNetUnfolderBase]: 586/1296 cut-off events. [2024-10-11 14:21:53,399 INFO L125 PetriNetUnfolderBase]: For 942/942 co-relation queries the response was YES. [2024-10-11 14:21:53,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3677 conditions, 1296 events. 586/1296 cut-off events. For 942/942 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 6700 event pairs, 368 based on Foata normal form. 12/1304 useless extension candidates. Maximal degree in co-relation 3656. Up to 827 conditions per place. [2024-10-11 14:21:53,404 INFO L140 encePairwiseOnDemand]: 71/80 looper letters, 0 selfloop transitions, 0 changer transitions 97/97 dead transitions. [2024-10-11 14:21:53,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 97 transitions, 625 flow [2024-10-11 14:21:53,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 14:21:53,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 14:21:53,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 197 transitions. [2024-10-11 14:21:53,406 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41041666666666665 [2024-10-11 14:21:53,406 INFO L175 Difference]: Start difference. First operand has 77 places, 69 transitions, 319 flow. Second operand 6 states and 197 transitions. [2024-10-11 14:21:53,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 97 transitions, 625 flow [2024-10-11 14:21:53,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 97 transitions, 610 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-10-11 14:21:53,411 INFO L231 Difference]: Finished difference. Result has 77 places, 0 transitions, 0 flow [2024-10-11 14:21:53,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=77, PETRI_TRANSITIONS=0} [2024-10-11 14:21:53,413 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 5 predicate places. [2024-10-11 14:21:53,415 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 0 transitions, 0 flow [2024-10-11 14:21:53,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:21:53,419 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-10-11 14:21:53,420 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-10-11 14:21:53,420 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2024-10-11 14:21:53,420 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2024-10-11 14:21:53,420 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-10-11 14:21:53,421 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-10-11 14:21:53,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 14:21:53,423 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:21:53,430 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 14:21:53,430 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 14:21:53,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:21:53 BasicIcfg [2024-10-11 14:21:53,439 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 14:21:53,440 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 14:21:53,440 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 14:21:53,440 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 14:21:53,441 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:46" (3/4) ... [2024-10-11 14:21:53,442 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 14:21:53,447 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2024-10-11 14:21:53,448 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-11 14:21:53,453 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2024-10-11 14:21:53,453 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-11 14:21:53,453 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 14:21:53,453 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 14:21:53,545 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 14:21:53,546 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 14:21:53,546 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 14:21:53,547 INFO L158 Benchmark]: Toolchain (without parser) took 7968.94ms. Allocated memory was 167.8MB in the beginning and 681.6MB in the end (delta: 513.8MB). Free memory was 137.3MB in the beginning and 283.1MB in the end (delta: -145.8MB). Peak memory consumption was 368.4MB. Max. memory is 16.1GB. [2024-10-11 14:21:53,547 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory was 78.3MB in the beginning and 78.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 14:21:53,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.06ms. Allocated memory is still 167.8MB. Free memory was 136.7MB in the beginning and 114.7MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 14:21:53,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.84ms. Allocated memory is still 167.8MB. Free memory was 114.7MB in the beginning and 112.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 14:21:53,548 INFO L158 Benchmark]: Boogie Preprocessor took 65.25ms. Allocated memory is still 167.8MB. Free memory was 112.5MB in the beginning and 110.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 14:21:53,548 INFO L158 Benchmark]: RCFGBuilder took 736.16ms. Allocated memory is still 167.8MB. Free memory was 109.4MB in the beginning and 103.9MB in the end (delta: 5.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-11 14:21:53,549 INFO L158 Benchmark]: TraceAbstraction took 6463.00ms. Allocated memory was 167.8MB in the beginning and 681.6MB in the end (delta: 513.8MB). Free memory was 103.9MB in the beginning and 287.3MB in the end (delta: -183.4MB). Peak memory consumption was 333.4MB. Max. memory is 16.1GB. [2024-10-11 14:21:53,549 INFO L158 Benchmark]: Witness Printer took 106.69ms. Allocated memory is still 681.6MB. Free memory was 287.3MB in the beginning and 283.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 14:21:53,550 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 104.9MB. Free memory was 78.3MB in the beginning and 78.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.06ms. Allocated memory is still 167.8MB. Free memory was 136.7MB in the beginning and 114.7MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.84ms. Allocated memory is still 167.8MB. Free memory was 114.7MB in the beginning and 112.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.25ms. Allocated memory is still 167.8MB. Free memory was 112.5MB in the beginning and 110.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 736.16ms. Allocated memory is still 167.8MB. Free memory was 109.4MB in the beginning and 103.9MB in the end (delta: 5.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6463.00ms. Allocated memory was 167.8MB in the beginning and 681.6MB in the end (delta: 513.8MB). Free memory was 103.9MB in the beginning and 287.3MB in the end (delta: -183.4MB). Peak memory consumption was 333.4MB. Max. memory is 16.1GB. * Witness Printer took 106.69ms. Allocated memory is still 681.6MB. Free memory was 287.3MB in the beginning and 283.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 107 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 459 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 422 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1111 IncrementalHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 35 mSDtfsCounter, 1111 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=607occurred in iteration=5, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 1042 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 14:21:53,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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: TRUE