./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.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/ldv-races/race-3_1-container_of-global.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 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 14:20:17,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 14:20:17,407 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 14:20:17,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 14:20:17,417 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 14:20:17,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 14:20:17,444 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 14:20:17,444 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 14:20:17,445 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 14:20:17,445 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 14:20:17,446 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 14:20:17,446 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 14:20:17,447 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 14:20:17,447 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 14:20:17,447 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 14:20:17,448 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 14:20:17,448 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 14:20:17,448 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 14:20:17,451 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 14:20:17,452 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 14:20:17,452 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 14:20:17,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 14:20:17,457 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 14:20:17,457 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 14:20:17,457 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 14:20:17,457 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 14:20:17,458 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 14:20:17,458 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 14:20:17,458 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 14:20:17,459 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 14:20:17,459 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 14:20:17,459 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 14:20:17,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:20:17,460 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 14:20:17,460 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 14:20:17,460 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 14:20:17,461 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 14:20:17,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 14:20:17,461 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 14:20:17,461 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 14:20:17,462 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 14:20:17,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 14:20:17,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece [2024-10-11 14:20:17,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 14:20:17,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 14:20:17,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 14:20:17,789 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 14:20:17,790 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 14:20:17,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-10-11 14:20:19,304 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 14:20:19,634 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 14:20:19,634 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-10-11 14:20:19,675 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/3fc0ad394/6d0ff024256e4fb484b6866d11f0dea5/FLAG9b190c8db [2024-10-11 14:20:19,692 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/3fc0ad394/6d0ff024256e4fb484b6866d11f0dea5 [2024-10-11 14:20:19,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 14:20:19,697 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 14:20:19,698 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 14:20:19,698 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 14:20:19,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 14:20:19,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:19" (1/1) ... [2024-10-11 14:20:19,708 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45939798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:19, skipping insertion in model container [2024-10-11 14:20:19,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:19" (1/1) ... [2024-10-11 14:20:19,775 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 14:20:20,138 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/ldv-races/race-3_1-container_of-global.i[186210,186223] [2024-10-11 14:20:20,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:20:20,198 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 14:20:20,263 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/ldv-races/race-3_1-container_of-global.i[186210,186223] [2024-10-11 14:20:20,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:20:20,391 INFO L204 MainTranslator]: Completed translation [2024-10-11 14:20:20,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:20 WrapperNode [2024-10-11 14:20:20,392 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 14:20:20,393 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 14:20:20,393 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 14:20:20,393 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 14:20:20,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:20" (1/1) ... [2024-10-11 14:20:20,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:20" (1/1) ... [2024-10-11 14:20:20,458 INFO L138 Inliner]: procedures = 246, calls = 39, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 127 [2024-10-11 14:20:20,459 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 14:20:20,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 14:20:20,460 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 14:20:20,460 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 14:20:20,468 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:20" (1/1) ... [2024-10-11 14:20:20,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:20" (1/1) ... [2024-10-11 14:20:20,474 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:20" (1/1) ... [2024-10-11 14:20:20,491 INFO L175 MemorySlicer]: Split 17 memory accesses to 3 slices as follows [2, 2, 13]. 76 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 2, 6]. [2024-10-11 14:20:20,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:20" (1/1) ... [2024-10-11 14:20:20,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:20" (1/1) ... [2024-10-11 14:20:20,503 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:20" (1/1) ... [2024-10-11 14:20:20,505 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:20" (1/1) ... [2024-10-11 14:20:20,509 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:20" (1/1) ... [2024-10-11 14:20:20,511 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:20" (1/1) ... [2024-10-11 14:20:20,517 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 14:20:20,529 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 14:20:20,529 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 14:20:20,530 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 14:20:20,531 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:20" (1/1) ... [2024-10-11 14:20:20,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:20:20,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:20:20,577 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 14:20:20,583 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 14:20:20,632 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-10-11 14:20:20,633 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-10-11 14:20:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 14:20:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 14:20:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 14:20:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 14:20:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 14:20:20,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 14:20:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 14:20:20,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 14:20:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 14:20:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 14:20:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 14:20:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 14:20:20,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 14:20:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 14:20:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 14:20:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 14:20:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 14:20:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 14:20:20,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 14:20:20,640 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 14:20:20,931 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 14:20:20,933 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 14:20:21,179 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 14:20:21,179 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 14:20:21,334 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 14:20:21,335 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 14:20:21,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:21 BoogieIcfgContainer [2024-10-11 14:20:21,335 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 14:20:21,339 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 14:20:21,339 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 14:20:21,343 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 14:20:21,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:20:19" (1/3) ... [2024-10-11 14:20:21,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eabefa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:21, skipping insertion in model container [2024-10-11 14:20:21,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:20" (2/3) ... [2024-10-11 14:20:21,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eabefa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:21, skipping insertion in model container [2024-10-11 14:20:21,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:21" (3/3) ... [2024-10-11 14:20:21,346 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2024-10-11 14:20:21,364 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 14:20:21,365 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-11 14:20:21,365 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 14:20:21,422 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 14:20:21,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 60 transitions, 134 flow [2024-10-11 14:20:21,517 INFO L124 PetriNetUnfolderBase]: 10/73 cut-off events. [2024-10-11 14:20:21,517 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 14:20:21,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 73 events. 10/73 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 138 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 39. Up to 4 conditions per place. [2024-10-11 14:20:21,522 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 60 transitions, 134 flow [2024-10-11 14:20:21,528 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 53 transitions, 118 flow [2024-10-11 14:20:21,538 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:20:21,544 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;@41814f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:20:21,544 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-11 14:20:21,549 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 14:20:21,550 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2024-10-11 14:20:21,550 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 14:20:21,551 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:20:21,551 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-11 14:20:21,552 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-11 14:20:21,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:20:21,559 INFO L85 PathProgramCache]: Analyzing trace with hash 13064660, now seen corresponding path program 1 times [2024-10-11 14:20:21,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:20:21,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339774153] [2024-10-11 14:20:21,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:20:21,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:20:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:20:22,141 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 14:20:22,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:20:22,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339774153] [2024-10-11 14:20:22,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339774153] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:20:22,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:20:22,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:20:22,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676905450] [2024-10-11 14:20:22,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:20:22,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 14:20:22,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:20:22,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 14:20:22,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 14:20:22,235 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-10-11 14:20:22,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 53 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 14:20:22,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:20:22,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-10-11 14:20:22,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:20:22,572 INFO L124 PetriNetUnfolderBase]: 466/823 cut-off events. [2024-10-11 14:20:22,572 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-11 14:20:22,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1648 conditions, 823 events. 466/823 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3428 event pairs, 345 based on Foata normal form. 3/822 useless extension candidates. Maximal degree in co-relation 1538. Up to 602 conditions per place. [2024-10-11 14:20:22,584 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 39 selfloop transitions, 10 changer transitions 0/54 dead transitions. [2024-10-11 14:20:22,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 218 flow [2024-10-11 14:20:22,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 14:20:22,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 14:20:22,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-10-11 14:20:22,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-10-11 14:20:22,601 INFO L175 Difference]: Start difference. First operand has 53 places, 53 transitions, 118 flow. Second operand 3 states and 84 transitions. [2024-10-11 14:20:22,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 218 flow [2024-10-11 14:20:22,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 210 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 14:20:22,612 INFO L231 Difference]: Finished difference. Result has 47 places, 44 transitions, 112 flow [2024-10-11 14:20:22,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=47, PETRI_TRANSITIONS=44} [2024-10-11 14:20:22,621 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -6 predicate places. [2024-10-11 14:20:22,622 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 112 flow [2024-10-11 14:20:22,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 14:20:22,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:20:22,622 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 14:20:22,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 14:20:22,623 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-11 14:20:22,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:20:22,624 INFO L85 PathProgramCache]: Analyzing trace with hash -329692165, now seen corresponding path program 1 times [2024-10-11 14:20:22,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:20:22,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629263037] [2024-10-11 14:20:22,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:20:22,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:20:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:20:22,875 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 14:20:22,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:20:22,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629263037] [2024-10-11 14:20:22,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629263037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:20:22,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:20:22,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:20:22,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687771104] [2024-10-11 14:20:22,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:20:22,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:20:22,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:20:22,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:20:22,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:20:22,904 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-10-11 14:20:22,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 14:20:22,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:20:22,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-10-11 14:20:22,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:20:23,151 INFO L124 PetriNetUnfolderBase]: 466/821 cut-off events. [2024-10-11 14:20:23,151 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-10-11 14:20:23,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1712 conditions, 821 events. 466/821 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3457 event pairs, 155 based on Foata normal form. 1/821 useless extension candidates. Maximal degree in co-relation 818. Up to 553 conditions per place. [2024-10-11 14:20:23,159 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 47 selfloop transitions, 11 changer transitions 0/62 dead transitions. [2024-10-11 14:20:23,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 62 transitions, 265 flow [2024-10-11 14:20:23,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:20:23,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 14:20:23,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 109 transitions. [2024-10-11 14:20:23,162 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36333333333333334 [2024-10-11 14:20:23,162 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 112 flow. Second operand 5 states and 109 transitions. [2024-10-11 14:20:23,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 62 transitions, 265 flow [2024-10-11 14:20:23,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 62 transitions, 245 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 14:20:23,166 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 126 flow [2024-10-11 14:20:23,166 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2024-10-11 14:20:23,167 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -5 predicate places. [2024-10-11 14:20:23,167 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 126 flow [2024-10-11 14:20:23,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 14:20:23,167 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:20:23,167 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:20:23,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 14:20:23,168 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-11 14:20:23,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:20:23,169 INFO L85 PathProgramCache]: Analyzing trace with hash 2019603849, now seen corresponding path program 1 times [2024-10-11 14:20:23,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:20:23,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285137612] [2024-10-11 14:20:23,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:20:23,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:20:23,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:20:23,374 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 14:20:23,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:20:23,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285137612] [2024-10-11 14:20:23,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285137612] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:20:23,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:20:23,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:20:23,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191444418] [2024-10-11 14:20:23,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:20:23,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:20:23,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:20:23,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:20:23,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:20:23,403 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-10-11 14:20:23,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 14:20:23,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:20:23,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-10-11 14:20:23,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:20:23,642 INFO L124 PetriNetUnfolderBase]: 562/1026 cut-off events. [2024-10-11 14:20:23,642 INFO L125 PetriNetUnfolderBase]: For 180/180 co-relation queries the response was YES. [2024-10-11 14:20:23,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2316 conditions, 1026 events. 562/1026 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4860 event pairs, 252 based on Foata normal form. 64/1089 useless extension candidates. Maximal degree in co-relation 274. Up to 545 conditions per place. [2024-10-11 14:20:23,649 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 49 selfloop transitions, 10 changer transitions 4/67 dead transitions. [2024-10-11 14:20:23,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 67 transitions, 306 flow [2024-10-11 14:20:23,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:20:23,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 14:20:23,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2024-10-11 14:20:23,653 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.425 [2024-10-11 14:20:23,654 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 126 flow. Second operand 4 states and 102 transitions. [2024-10-11 14:20:23,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 67 transitions, 306 flow [2024-10-11 14:20:23,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 67 transitions, 286 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 14:20:23,658 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 150 flow [2024-10-11 14:20:23,658 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2024-10-11 14:20:23,659 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -3 predicate places. [2024-10-11 14:20:23,660 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 150 flow [2024-10-11 14:20:23,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 14:20:23,660 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:20:23,661 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] [2024-10-11 14:20:23,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 14:20:23,661 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-11 14:20:23,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:20:23,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1257070099, now seen corresponding path program 1 times [2024-10-11 14:20:23,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:20:23,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206239333] [2024-10-11 14:20:23,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:20:23,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:20:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:20:23,804 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 14:20:23,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:20:23,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206239333] [2024-10-11 14:20:23,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206239333] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:20:23,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:20:23,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:20:23,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802319819] [2024-10-11 14:20:23,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:20:23,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:20:23,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:20:23,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:20:23,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:20:23,810 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 60 [2024-10-11 14:20:23,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 14:20:23,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:20:23,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 60 [2024-10-11 14:20:23,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:20:23,980 INFO L124 PetriNetUnfolderBase]: 225/408 cut-off events. [2024-10-11 14:20:23,981 INFO L125 PetriNetUnfolderBase]: For 99/99 co-relation queries the response was YES. [2024-10-11 14:20:23,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 408 events. 225/408 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1450 event pairs, 46 based on Foata normal form. 0/408 useless extension candidates. Maximal degree in co-relation 927. Up to 217 conditions per place. [2024-10-11 14:20:23,984 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 48 selfloop transitions, 3 changer transitions 0/58 dead transitions. [2024-10-11 14:20:23,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 58 transitions, 278 flow [2024-10-11 14:20:23,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:20:23,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 14:20:23,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions. [2024-10-11 14:20:23,987 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5458333333333333 [2024-10-11 14:20:23,987 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 150 flow. Second operand 4 states and 131 transitions. [2024-10-11 14:20:23,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 58 transitions, 278 flow [2024-10-11 14:20:23,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 58 transitions, 248 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-10-11 14:20:23,992 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 96 flow [2024-10-11 14:20:23,993 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2024-10-11 14:20:23,994 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -12 predicate places. [2024-10-11 14:20:23,994 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 96 flow [2024-10-11 14:20:23,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 14:20:23,995 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:20:23,995 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 14:20:23,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 14:20:23,996 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-11 14:20:23,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:20:23,996 INFO L85 PathProgramCache]: Analyzing trace with hash -660184073, now seen corresponding path program 1 times [2024-10-11 14:20:23,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:20:23,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058919692] [2024-10-11 14:20:23,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:20:23,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:20:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:20:24,551 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 14:20:24,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:20:24,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058919692] [2024-10-11 14:20:24,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058919692] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:20:24,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:20:24,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 14:20:24,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132491435] [2024-10-11 14:20:24,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:20:24,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:20:24,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:20:24,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:20:24,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:20:24,555 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-10-11 14:20:24,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 14:20:24,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:20:24,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-10-11 14:20:24,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:20:24,775 INFO L124 PetriNetUnfolderBase]: 251/458 cut-off events. [2024-10-11 14:20:24,776 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2024-10-11 14:20:24,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1111 conditions, 458 events. 251/458 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1775 event pairs, 35 based on Foata normal form. 8/465 useless extension candidates. Maximal degree in co-relation 219. Up to 271 conditions per place. [2024-10-11 14:20:24,779 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 56 selfloop transitions, 6 changer transitions 0/69 dead transitions. [2024-10-11 14:20:24,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 69 transitions, 332 flow [2024-10-11 14:20:24,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:20:24,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 14:20:24,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-10-11 14:20:24,781 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2024-10-11 14:20:24,781 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 96 flow. Second operand 5 states and 164 transitions. [2024-10-11 14:20:24,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 69 transitions, 332 flow [2024-10-11 14:20:24,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 69 transitions, 316 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 14:20:24,783 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 126 flow [2024-10-11 14:20:24,783 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=45, PETRI_TRANSITIONS=40} [2024-10-11 14:20:24,784 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -8 predicate places. [2024-10-11 14:20:24,784 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 126 flow [2024-10-11 14:20:24,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 14:20:24,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:20:24,785 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 14:20:24,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 14:20:24,785 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-11 14:20:24,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:20:24,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1426301679, now seen corresponding path program 2 times [2024-10-11 14:20:24,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:20:24,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409246321] [2024-10-11 14:20:24,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:20:24,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:20:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:20:25,343 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 14:20:25,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:20:25,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409246321] [2024-10-11 14:20:25,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409246321] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:20:25,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:20:25,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 14:20:25,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746331358] [2024-10-11 14:20:25,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:20:25,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:20:25,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:20:25,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:20:25,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:20:25,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-10-11 14:20:25,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 14:20:25,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:20:25,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-10-11 14:20:25,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:20:25,588 INFO L124 PetriNetUnfolderBase]: 281/516 cut-off events. [2024-10-11 14:20:25,588 INFO L125 PetriNetUnfolderBase]: For 225/225 co-relation queries the response was YES. [2024-10-11 14:20:25,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1441 conditions, 516 events. 281/516 cut-off events. For 225/225 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2048 event pairs, 37 based on Foata normal form. 8/523 useless extension candidates. Maximal degree in co-relation 354. Up to 307 conditions per place. [2024-10-11 14:20:25,593 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 58 selfloop transitions, 8 changer transitions 0/73 dead transitions. [2024-10-11 14:20:25,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 73 transitions, 378 flow [2024-10-11 14:20:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:20:25,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 14:20:25,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-10-11 14:20:25,594 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2024-10-11 14:20:25,595 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 126 flow. Second operand 5 states and 164 transitions. [2024-10-11 14:20:25,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 73 transitions, 378 flow [2024-10-11 14:20:25,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 73 transitions, 375 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 14:20:25,599 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 172 flow [2024-10-11 14:20:25,599 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=172, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2024-10-11 14:20:25,602 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -3 predicate places. [2024-10-11 14:20:25,602 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 172 flow [2024-10-11 14:20:25,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 14:20:25,602 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:20:25,602 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 14:20:25,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 14:20:25,603 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-11 14:20:25,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:20:25,603 INFO L85 PathProgramCache]: Analyzing trace with hash -368074777, now seen corresponding path program 3 times [2024-10-11 14:20:25,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:20:25,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826705683] [2024-10-11 14:20:25,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:20:25,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:20:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:20:26,165 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 14:20:26,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:20:26,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826705683] [2024-10-11 14:20:26,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826705683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:20:26,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:20:26,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 14:20:26,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231843812] [2024-10-11 14:20:26,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:20:26,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 14:20:26,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:20:26,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 14:20:26,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 14:20:26,195 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-10-11 14:20:26,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 172 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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 14:20:26,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:20:26,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-10-11 14:20:26,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:20:26,611 INFO L124 PetriNetUnfolderBase]: 324/607 cut-off events. [2024-10-11 14:20:26,611 INFO L125 PetriNetUnfolderBase]: For 577/577 co-relation queries the response was YES. [2024-10-11 14:20:26,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1923 conditions, 607 events. 324/607 cut-off events. For 577/577 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2452 event pairs, 38 based on Foata normal form. 0/606 useless extension candidates. Maximal degree in co-relation 696. Up to 171 conditions per place. [2024-10-11 14:20:26,616 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 82 selfloop transitions, 23 changer transitions 0/107 dead transitions. [2024-10-11 14:20:26,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 107 transitions, 682 flow [2024-10-11 14:20:26,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 14:20:26,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 14:20:26,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 201 transitions. [2024-10-11 14:20:26,618 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2791666666666667 [2024-10-11 14:20:26,619 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 172 flow. Second operand 12 states and 201 transitions. [2024-10-11 14:20:26,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 107 transitions, 682 flow [2024-10-11 14:20:26,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 107 transitions, 674 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 14:20:26,622 INFO L231 Difference]: Finished difference. Result has 64 places, 55 transitions, 288 flow [2024-10-11 14:20:26,622 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=288, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2024-10-11 14:20:26,623 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 11 predicate places. [2024-10-11 14:20:26,623 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 288 flow [2024-10-11 14:20:26,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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 14:20:26,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:20:26,624 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 14:20:26,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 14:20:26,624 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-11 14:20:26,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:20:26,624 INFO L85 PathProgramCache]: Analyzing trace with hash -786765451, now seen corresponding path program 4 times [2024-10-11 14:20:26,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:20:26,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702961559] [2024-10-11 14:20:26,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:20:26,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:20:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:20:26,970 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 14:20:26,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:20:26,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702961559] [2024-10-11 14:20:26,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702961559] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:20:26,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:20:26,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 14:20:26,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913806667] [2024-10-11 14:20:26,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:20:26,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:20:26,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:20:26,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:20:26,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:20:26,972 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-10-11 14:20:26,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 288 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 14:20:26,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:20:26,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-10-11 14:20:26,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:20:27,281 INFO L124 PetriNetUnfolderBase]: 437/848 cut-off events. [2024-10-11 14:20:27,281 INFO L125 PetriNetUnfolderBase]: For 1437/1437 co-relation queries the response was YES. [2024-10-11 14:20:27,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2923 conditions, 848 events. 437/848 cut-off events. For 1437/1437 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4078 event pairs, 115 based on Foata normal form. 16/864 useless extension candidates. Maximal degree in co-relation 2881. Up to 515 conditions per place. [2024-10-11 14:20:27,288 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 87 selfloop transitions, 10 changer transitions 0/105 dead transitions. [2024-10-11 14:20:27,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 105 transitions, 750 flow [2024-10-11 14:20:27,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:20:27,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 14:20:27,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2024-10-11 14:20:27,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5766666666666667 [2024-10-11 14:20:27,290 INFO L175 Difference]: Start difference. First operand has 64 places, 55 transitions, 288 flow. Second operand 5 states and 173 transitions. [2024-10-11 14:20:27,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 105 transitions, 750 flow [2024-10-11 14:20:27,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 105 transitions, 725 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-10-11 14:20:27,297 INFO L231 Difference]: Finished difference. Result has 68 places, 61 transitions, 370 flow [2024-10-11 14:20:27,297 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=370, PETRI_PLACES=68, PETRI_TRANSITIONS=61} [2024-10-11 14:20:27,298 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 15 predicate places. [2024-10-11 14:20:27,298 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 61 transitions, 370 flow [2024-10-11 14:20:27,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 14:20:27,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:20:27,301 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 14:20:27,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 14:20:27,301 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-11 14:20:27,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:20:27,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1783290199, now seen corresponding path program 5 times [2024-10-11 14:20:27,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:20:27,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812603982] [2024-10-11 14:20:27,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:20:27,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:20:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:20:27,730 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 14:20:27,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:20:27,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812603982] [2024-10-11 14:20:27,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812603982] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:20:27,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:20:27,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 14:20:27,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010703858] [2024-10-11 14:20:27,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:20:27,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 14:20:27,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:20:27,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 14:20:27,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 14:20:27,764 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-10-11 14:20:27,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 61 transitions, 370 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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 14:20:27,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:20:27,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-10-11 14:20:27,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:20:28,191 INFO L124 PetriNetUnfolderBase]: 437/844 cut-off events. [2024-10-11 14:20:28,191 INFO L125 PetriNetUnfolderBase]: For 2287/2287 co-relation queries the response was YES. [2024-10-11 14:20:28,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3182 conditions, 844 events. 437/844 cut-off events. For 2287/2287 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4009 event pairs, 45 based on Foata normal form. 2/846 useless extension candidates. Maximal degree in co-relation 3139. Up to 246 conditions per place. [2024-10-11 14:20:28,199 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 93 selfloop transitions, 27 changer transitions 0/121 dead transitions. [2024-10-11 14:20:28,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 121 transitions, 1017 flow [2024-10-11 14:20:28,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 14:20:28,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 14:20:28,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 202 transitions. [2024-10-11 14:20:28,201 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.28055555555555556 [2024-10-11 14:20:28,201 INFO L175 Difference]: Start difference. First operand has 68 places, 61 transitions, 370 flow. Second operand 12 states and 202 transitions. [2024-10-11 14:20:28,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 121 transitions, 1017 flow [2024-10-11 14:20:28,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 121 transitions, 995 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-10-11 14:20:28,210 INFO L231 Difference]: Finished difference. Result has 76 places, 65 transitions, 465 flow [2024-10-11 14:20:28,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=465, PETRI_PLACES=76, PETRI_TRANSITIONS=65} [2024-10-11 14:20:28,211 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 23 predicate places. [2024-10-11 14:20:28,212 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 65 transitions, 465 flow [2024-10-11 14:20:28,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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 14:20:28,212 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:20:28,212 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 14:20:28,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 14:20:28,212 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-11 14:20:28,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:20:28,214 INFO L85 PathProgramCache]: Analyzing trace with hash -170966216, now seen corresponding path program 1 times [2024-10-11 14:20:28,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:20:28,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585047428] [2024-10-11 14:20:28,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:20:28,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:20:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:20:29,106 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 14:20:29,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:20:29,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585047428] [2024-10-11 14:20:29,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585047428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:20:29,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:20:29,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 14:20:29,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766431861] [2024-10-11 14:20:29,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:20:29,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 14:20:29,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:20:29,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 14:20:29,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 14:20:29,123 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-10-11 14:20:29,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 65 transitions, 465 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 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 14:20:29,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:20:29,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-10-11 14:20:29,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:20:29,720 INFO L124 PetriNetUnfolderBase]: 437/842 cut-off events. [2024-10-11 14:20:29,721 INFO L125 PetriNetUnfolderBase]: For 2801/2801 co-relation queries the response was YES. [2024-10-11 14:20:29,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3376 conditions, 842 events. 437/842 cut-off events. For 2801/2801 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3923 event pairs, 82 based on Foata normal form. 1/843 useless extension candidates. Maximal degree in co-relation 2470. Up to 368 conditions per place. [2024-10-11 14:20:29,727 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 72 selfloop transitions, 32 changer transitions 27/132 dead transitions. [2024-10-11 14:20:29,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 132 transitions, 1200 flow [2024-10-11 14:20:29,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 14:20:29,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-11 14:20:29,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 232 transitions. [2024-10-11 14:20:29,729 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2761904761904762 [2024-10-11 14:20:29,730 INFO L175 Difference]: Start difference. First operand has 76 places, 65 transitions, 465 flow. Second operand 14 states and 232 transitions. [2024-10-11 14:20:29,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 132 transitions, 1200 flow [2024-10-11 14:20:29,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 132 transitions, 1148 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-10-11 14:20:29,741 INFO L231 Difference]: Finished difference. Result has 88 places, 78 transitions, 685 flow [2024-10-11 14:20:29,742 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=685, PETRI_PLACES=88, PETRI_TRANSITIONS=78} [2024-10-11 14:20:29,742 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 35 predicate places. [2024-10-11 14:20:29,743 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 78 transitions, 685 flow [2024-10-11 14:20:29,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 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 14:20:29,743 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:20:29,743 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 14:20:29,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 14:20:29,744 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-11 14:20:29,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:20:29,744 INFO L85 PathProgramCache]: Analyzing trace with hash -343838380, now seen corresponding path program 2 times [2024-10-11 14:20:29,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:20:29,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215805550] [2024-10-11 14:20:29,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:20:29,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:20:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:20:30,827 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 14:20:30,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:20:30,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215805550] [2024-10-11 14:20:30,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215805550] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:20:30,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:20:30,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 14:20:30,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314112112] [2024-10-11 14:20:30,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:20:30,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 14:20:30,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:20:30,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 14:20:30,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-11 14:20:30,860 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-10-11 14:20:30,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 78 transitions, 685 flow. Second operand has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 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 14:20:30,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:20:30,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-10-11 14:20:30,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:20:31,376 INFO L124 PetriNetUnfolderBase]: 377/746 cut-off events. [2024-10-11 14:20:31,376 INFO L125 PetriNetUnfolderBase]: For 2817/2817 co-relation queries the response was YES. [2024-10-11 14:20:31,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3126 conditions, 746 events. 377/746 cut-off events. For 2817/2817 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3387 event pairs, 66 based on Foata normal form. 1/747 useless extension candidates. Maximal degree in co-relation 3094. Up to 410 conditions per place. [2024-10-11 14:20:31,383 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 68 selfloop transitions, 28 changer transitions 32/129 dead transitions. [2024-10-11 14:20:31,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 129 transitions, 1242 flow [2024-10-11 14:20:31,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 14:20:31,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 14:20:31,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 217 transitions. [2024-10-11 14:20:31,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2782051282051282 [2024-10-11 14:20:31,385 INFO L175 Difference]: Start difference. First operand has 88 places, 78 transitions, 685 flow. Second operand 13 states and 217 transitions. [2024-10-11 14:20:31,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 129 transitions, 1242 flow [2024-10-11 14:20:31,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 129 transitions, 1135 flow, removed 15 selfloop flow, removed 10 redundant places. [2024-10-11 14:20:31,400 INFO L231 Difference]: Finished difference. Result has 91 places, 75 transitions, 637 flow [2024-10-11 14:20:31,400 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=637, PETRI_PLACES=91, PETRI_TRANSITIONS=75} [2024-10-11 14:20:31,403 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 38 predicate places. [2024-10-11 14:20:31,403 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 75 transitions, 637 flow [2024-10-11 14:20:31,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 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 14:20:31,404 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:20:31,404 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 14:20:31,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 14:20:31,404 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-11 14:20:31,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:20:31,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1234976944, now seen corresponding path program 3 times [2024-10-11 14:20:31,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:20:31,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772039481] [2024-10-11 14:20:31,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:20:31,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:20:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:20:32,277 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 14:20:32,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:20:32,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772039481] [2024-10-11 14:20:32,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772039481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:20:32,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:20:32,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 14:20:32,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069899906] [2024-10-11 14:20:32,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:20:32,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 14:20:32,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:20:32,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 14:20:32,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 14:20:32,308 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-10-11 14:20:32,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 75 transitions, 637 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 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 14:20:32,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:20:32,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-10-11 14:20:32,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:20:32,867 INFO L124 PetriNetUnfolderBase]: 295/584 cut-off events. [2024-10-11 14:20:32,867 INFO L125 PetriNetUnfolderBase]: For 2029/2029 co-relation queries the response was YES. [2024-10-11 14:20:32,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2413 conditions, 584 events. 295/584 cut-off events. For 2029/2029 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2426 event pairs, 58 based on Foata normal form. 1/585 useless extension candidates. Maximal degree in co-relation 2387. Up to 301 conditions per place. [2024-10-11 14:20:32,872 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 58 selfloop transitions, 26 changer transitions 27/112 dead transitions. [2024-10-11 14:20:32,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 112 transitions, 1053 flow [2024-10-11 14:20:32,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 14:20:32,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-11 14:20:32,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 228 transitions. [2024-10-11 14:20:32,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2714285714285714 [2024-10-11 14:20:32,875 INFO L175 Difference]: Start difference. First operand has 91 places, 75 transitions, 637 flow. Second operand 14 states and 228 transitions. [2024-10-11 14:20:32,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 112 transitions, 1053 flow [2024-10-11 14:20:32,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 112 transitions, 994 flow, removed 1 selfloop flow, removed 10 redundant places. [2024-10-11 14:20:32,884 INFO L231 Difference]: Finished difference. Result has 93 places, 67 transitions, 579 flow [2024-10-11 14:20:32,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=579, PETRI_PLACES=93, PETRI_TRANSITIONS=67} [2024-10-11 14:20:32,887 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 40 predicate places. [2024-10-11 14:20:32,887 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 67 transitions, 579 flow [2024-10-11 14:20:32,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 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 14:20:32,887 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:20:32,887 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 14:20:32,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 14:20:32,888 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-11 14:20:32,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:20:32,888 INFO L85 PathProgramCache]: Analyzing trace with hash 302187456, now seen corresponding path program 4 times [2024-10-11 14:20:32,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:20:32,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713194806] [2024-10-11 14:20:32,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:20:32,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:20:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:20:33,726 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 14:20:33,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:20:33,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713194806] [2024-10-11 14:20:33,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713194806] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:20:33,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:20:33,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 14:20:33,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117022084] [2024-10-11 14:20:33,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:20:33,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 14:20:33,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:20:33,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 14:20:33,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 14:20:33,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-10-11 14:20:33,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 67 transitions, 579 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 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 14:20:33,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:20:33,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-10-11 14:20:33,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:20:34,322 INFO L124 PetriNetUnfolderBase]: 228/449 cut-off events. [2024-10-11 14:20:34,322 INFO L125 PetriNetUnfolderBase]: For 1654/1654 co-relation queries the response was YES. [2024-10-11 14:20:34,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1920 conditions, 449 events. 228/449 cut-off events. For 1654/1654 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1691 event pairs, 36 based on Foata normal form. 1/450 useless extension candidates. Maximal degree in co-relation 1899. Up to 237 conditions per place. [2024-10-11 14:20:34,326 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 45 selfloop transitions, 16 changer transitions 36/98 dead transitions. [2024-10-11 14:20:34,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 98 transitions, 920 flow [2024-10-11 14:20:34,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 14:20:34,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-11 14:20:34,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 220 transitions. [2024-10-11 14:20:34,327 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2619047619047619 [2024-10-11 14:20:34,328 INFO L175 Difference]: Start difference. First operand has 93 places, 67 transitions, 579 flow. Second operand 14 states and 220 transitions. [2024-10-11 14:20:34,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 98 transitions, 920 flow [2024-10-11 14:20:34,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 98 transitions, 804 flow, removed 3 selfloop flow, removed 15 redundant places. [2024-10-11 14:20:34,334 INFO L231 Difference]: Finished difference. Result has 87 places, 53 transitions, 371 flow [2024-10-11 14:20:34,334 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=371, PETRI_PLACES=87, PETRI_TRANSITIONS=53} [2024-10-11 14:20:34,335 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 34 predicate places. [2024-10-11 14:20:34,335 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 53 transitions, 371 flow [2024-10-11 14:20:34,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 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 14:20:34,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:20:34,336 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 14:20:34,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 14:20:34,336 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-11 14:20:34,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:20:34,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1301090480, now seen corresponding path program 5 times [2024-10-11 14:20:34,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:20:34,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818327351] [2024-10-11 14:20:34,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:20:34,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:20:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:20:34,690 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 14:20:34,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:20:34,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818327351] [2024-10-11 14:20:34,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818327351] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:20:34,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:20:34,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 14:20:34,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653590546] [2024-10-11 14:20:34,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:20:34,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:20:34,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:20:34,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:20:34,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:20:34,693 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-10-11 14:20:34,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 53 transitions, 371 flow. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 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 14:20:34,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:20:34,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-10-11 14:20:34,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:20:34,862 INFO L124 PetriNetUnfolderBase]: 97/204 cut-off events. [2024-10-11 14:20:34,863 INFO L125 PetriNetUnfolderBase]: For 750/750 co-relation queries the response was YES. [2024-10-11 14:20:34,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 834 conditions, 204 events. 97/204 cut-off events. For 750/750 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 575 event pairs, 9 based on Foata normal form. 12/216 useless extension candidates. Maximal degree in co-relation 816. Up to 96 conditions per place. [2024-10-11 14:20:34,865 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 45 selfloop transitions, 14 changer transitions 0/64 dead transitions. [2024-10-11 14:20:34,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 64 transitions, 533 flow [2024-10-11 14:20:34,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:20:34,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 14:20:34,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-10-11 14:20:34,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5133333333333333 [2024-10-11 14:20:34,866 INFO L175 Difference]: Start difference. First operand has 87 places, 53 transitions, 371 flow. Second operand 5 states and 154 transitions. [2024-10-11 14:20:34,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 64 transitions, 533 flow [2024-10-11 14:20:34,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 64 transitions, 421 flow, removed 16 selfloop flow, removed 18 redundant places. [2024-10-11 14:20:34,870 INFO L231 Difference]: Finished difference. Result has 65 places, 51 transitions, 311 flow [2024-10-11 14:20:34,870 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=311, PETRI_PLACES=65, PETRI_TRANSITIONS=51} [2024-10-11 14:20:34,871 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 12 predicate places. [2024-10-11 14:20:34,871 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 51 transitions, 311 flow [2024-10-11 14:20:34,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 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 14:20:34,872 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:20:34,872 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 14:20:34,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 14:20:34,872 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-11 14:20:34,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:20:34,873 INFO L85 PathProgramCache]: Analyzing trace with hash 50014096, now seen corresponding path program 6 times [2024-10-11 14:20:34,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:20:34,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550428368] [2024-10-11 14:20:34,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:20:34,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:20:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:20:35,870 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 14:20:35,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:20:35,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550428368] [2024-10-11 14:20:35,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550428368] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:20:35,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:20:35,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 14:20:35,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664735864] [2024-10-11 14:20:35,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:20:35,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 14:20:35,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:20:35,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 14:20:35,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-11 14:20:35,914 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-10-11 14:20:35,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 51 transitions, 311 flow. Second operand has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 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 14:20:35,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:20:35,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-10-11 14:20:35,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:20:36,309 INFO L124 PetriNetUnfolderBase]: 144/303 cut-off events. [2024-10-11 14:20:36,311 INFO L125 PetriNetUnfolderBase]: For 767/767 co-relation queries the response was YES. [2024-10-11 14:20:36,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1039 conditions, 303 events. 144/303 cut-off events. For 767/767 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 995 event pairs, 5 based on Foata normal form. 1/304 useless extension candidates. Maximal degree in co-relation 739. Up to 71 conditions per place. [2024-10-11 14:20:36,313 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 37 selfloop transitions, 14 changer transitions 30/82 dead transitions. [2024-10-11 14:20:36,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 82 transitions, 599 flow [2024-10-11 14:20:36,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 14:20:36,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 14:20:36,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 197 transitions. [2024-10-11 14:20:36,316 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.25256410256410255 [2024-10-11 14:20:36,318 INFO L175 Difference]: Start difference. First operand has 65 places, 51 transitions, 311 flow. Second operand 13 states and 197 transitions. [2024-10-11 14:20:36,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 82 transitions, 599 flow [2024-10-11 14:20:36,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 82 transitions, 558 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-10-11 14:20:36,322 INFO L231 Difference]: Finished difference. Result has 73 places, 43 transitions, 241 flow [2024-10-11 14:20:36,322 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=241, PETRI_PLACES=73, PETRI_TRANSITIONS=43} [2024-10-11 14:20:36,323 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 20 predicate places. [2024-10-11 14:20:36,323 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 43 transitions, 241 flow [2024-10-11 14:20:36,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.727272727272727) internal successors, (140), 11 states have internal predecessors, (140), 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 14:20:36,323 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:20:36,323 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 14:20:36,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 14:20:36,323 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-10-11 14:20:36,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:20:36,324 INFO L85 PathProgramCache]: Analyzing trace with hash -302123464, now seen corresponding path program 7 times [2024-10-11 14:20:36,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:20:36,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496550193] [2024-10-11 14:20:36,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:20:36,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:20:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:20:37,240 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 14:20:37,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:20:37,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496550193] [2024-10-11 14:20:37,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496550193] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:20:37,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:20:37,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 14:20:37,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575403733] [2024-10-11 14:20:37,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:20:37,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 14:20:37,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:20:37,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 14:20:37,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 14:20:37,293 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-10-11 14:20:37,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 43 transitions, 241 flow. Second operand has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 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 14:20:37,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:20:37,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-10-11 14:20:37,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:20:37,613 INFO L124 PetriNetUnfolderBase]: 76/169 cut-off events. [2024-10-11 14:20:37,613 INFO L125 PetriNetUnfolderBase]: For 274/274 co-relation queries the response was YES. [2024-10-11 14:20:37,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 169 events. 76/169 cut-off events. For 274/274 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 426 event pairs, 4 based on Foata normal form. 1/170 useless extension candidates. Maximal degree in co-relation 587. Up to 62 conditions per place. [2024-10-11 14:20:37,614 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2024-10-11 14:20:37,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 54 transitions, 393 flow [2024-10-11 14:20:37,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 14:20:37,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 14:20:37,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 181 transitions. [2024-10-11 14:20:37,616 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23205128205128206 [2024-10-11 14:20:37,616 INFO L175 Difference]: Start difference. First operand has 73 places, 43 transitions, 241 flow. Second operand 13 states and 181 transitions. [2024-10-11 14:20:37,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 54 transitions, 393 flow [2024-10-11 14:20:37,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 54 transitions, 323 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-10-11 14:20:37,618 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2024-10-11 14:20:37,618 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2024-10-11 14:20:37,618 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 9 predicate places. [2024-10-11 14:20:37,618 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2024-10-11 14:20:37,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 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 14:20:37,625 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2024-10-11 14:20:37,626 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-10-11 14:20:37,628 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2024-10-11 14:20:37,628 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-10-11 14:20:37,628 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-10-11 14:20:37,628 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-10-11 14:20:37,629 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-10-11 14:20:37,629 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-10-11 14:20:37,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 14:20:37,629 INFO L407 BasicCegarLoop]: Path program histogram: [7, 5, 1, 1, 1, 1] [2024-10-11 14:20:37,634 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 14:20:37,634 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 14:20:37,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:20:37 BasicIcfg [2024-10-11 14:20:37,640 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 14:20:37,641 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 14:20:37,641 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 14:20:37,641 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 14:20:37,642 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:21" (3/4) ... [2024-10-11 14:20:37,644 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 14:20:37,648 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2024-10-11 14:20:37,656 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 82 nodes and edges [2024-10-11 14:20:37,658 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-10-11 14:20:37,659 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-11 14:20:37,659 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 14:20:37,756 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 14:20:37,757 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 14:20:37,757 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 14:20:37,758 INFO L158 Benchmark]: Toolchain (without parser) took 18060.78ms. Allocated memory was 167.8MB in the beginning and 635.4MB in the end (delta: 467.7MB). Free memory was 110.0MB in the beginning and 527.9MB in the end (delta: -417.9MB). Peak memory consumption was 52.7MB. Max. memory is 16.1GB. [2024-10-11 14:20:37,758 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 167.8MB. Free memory was 128.7MB in the beginning and 128.6MB in the end (delta: 176.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 14:20:37,759 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.52ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 125.7MB in the end (delta: -15.8MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2024-10-11 14:20:37,759 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.47ms. Allocated memory is still 167.8MB. Free memory was 125.7MB in the beginning and 123.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 14:20:37,759 INFO L158 Benchmark]: Boogie Preprocessor took 58.12ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 119.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 14:20:37,759 INFO L158 Benchmark]: RCFGBuilder took 806.04ms. Allocated memory is still 167.8MB. Free memory was 119.4MB in the beginning and 78.3MB in the end (delta: 41.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-10-11 14:20:37,759 INFO L158 Benchmark]: TraceAbstraction took 16301.59ms. Allocated memory was 167.8MB in the beginning and 635.4MB in the end (delta: 467.7MB). Free memory was 77.5MB in the beginning and 533.2MB in the end (delta: -455.7MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-10-11 14:20:37,760 INFO L158 Benchmark]: Witness Printer took 115.88ms. Allocated memory is still 635.4MB. Free memory was 533.2MB in the beginning and 527.9MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 14:20:37,762 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 167.8MB. Free memory was 128.7MB in the beginning and 128.6MB in the end (delta: 176.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 694.52ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 125.7MB in the end (delta: -15.8MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.47ms. Allocated memory is still 167.8MB. Free memory was 125.7MB in the beginning and 123.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.12ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 119.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 806.04ms. Allocated memory is still 167.8MB. Free memory was 119.4MB in the beginning and 78.3MB in the end (delta: 41.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 16301.59ms. Allocated memory was 167.8MB in the beginning and 635.4MB in the end (delta: 467.7MB). Free memory was 77.5MB in the beginning and 533.2MB in the end (delta: -455.7MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Witness Printer took 115.88ms. Allocated memory is still 635.4MB. Free memory was 533.2MB in the beginning and 527.9MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3885]: 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: 3885]: 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: 3885]: 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: 3885]: 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: 3885]: 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: 3885]: 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 4 procedures, 60 locations, 8 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: 16.2s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1109 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1017 mSDsluCounter, 941 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 869 mSDsCounter, 164 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3899 IncrementalHoareTripleChecker+Invalid, 4063 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 164 mSolverCounterUnsat, 72 mSDtfsCounter, 3899 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 182 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=685occurred in iteration=10, InterpolantAutomatonStates: 141, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 407 NumberOfCodeBlocks, 407 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 391 ConstructedInterpolants, 0 QuantifiedInterpolants, 3566 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 14:20:37,794 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