./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 06:49:50,245 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 06:49:50,315 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 06:49:50,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 06:49:50,325 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 06:49:50,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 06:49:50,357 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 06:49:50,358 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 06:49:50,359 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 06:49:50,360 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 06:49:50,361 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 06:49:50,361 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 06:49:50,362 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 06:49:50,363 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 06:49:50,364 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 06:49:50,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 06:49:50,365 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 06:49:50,365 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 06:49:50,365 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 06:49:50,366 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 06:49:50,366 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 06:49:50,367 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 06:49:50,367 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 06:49:50,367 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 06:49:50,368 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 06:49:50,368 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 06:49:50,368 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 06:49:50,369 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 06:49:50,369 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 06:49:50,369 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 06:49:50,370 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 06:49:50,370 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 06:49:50,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:49:50,371 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 06:49:50,371 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 06:49:50,371 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 06:49:50,371 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 06:49:50,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 06:49:50,372 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 06:49:50,372 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 06:49:50,373 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 06:49:50,373 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 06:49:50,373 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b [2024-10-13 06:49:50,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 06:49:50,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 06:49:50,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 06:49:50,701 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 06:49:50,701 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 06:49:50,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2024-10-13 06:49:52,184 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 06:49:52,434 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 06:49:52,435 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2024-10-13 06:49:52,448 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1826ac440/a13164f9af244941bb839c6a32923f09/FLAG349a55fc7 [2024-10-13 06:49:52,757 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1826ac440/a13164f9af244941bb839c6a32923f09 [2024-10-13 06:49:52,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 06:49:52,761 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 06:49:52,762 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 06:49:52,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 06:49:52,769 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 06:49:52,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:49:52" (1/1) ... [2024-10-13 06:49:52,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29386da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:49:52, skipping insertion in model container [2024-10-13 06:49:52,773 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:49:52" (1/1) ... [2024-10-13 06:49:52,825 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 06:49:53,145 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/pthread-atomic/read_write_lock-1.i[31246,31259] [2024-10-13 06:49:53,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:49:53,176 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 06:49:53,224 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/pthread-atomic/read_write_lock-1.i[31246,31259] [2024-10-13 06:49:53,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:49:53,286 INFO L204 MainTranslator]: Completed translation [2024-10-13 06:49:53,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:49:53 WrapperNode [2024-10-13 06:49:53,286 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 06:49:53,287 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 06:49:53,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 06:49:53,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 06:49:53,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:49:53" (1/1) ... [2024-10-13 06:49:53,309 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:49:53" (1/1) ... [2024-10-13 06:49:53,345 INFO L138 Inliner]: procedures = 173, calls = 25, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 89 [2024-10-13 06:49:53,346 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 06:49:53,346 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 06:49:53,346 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 06:49:53,347 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 06:49:53,357 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:49:53" (1/1) ... [2024-10-13 06:49:53,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:49:53" (1/1) ... [2024-10-13 06:49:53,361 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:49:53" (1/1) ... [2024-10-13 06:49:53,374 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 06:49:53,374 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:49:53" (1/1) ... [2024-10-13 06:49:53,375 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:49:53" (1/1) ... [2024-10-13 06:49:53,379 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:49:53" (1/1) ... [2024-10-13 06:49:53,381 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:49:53" (1/1) ... [2024-10-13 06:49:53,383 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:49:53" (1/1) ... [2024-10-13 06:49:53,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:49:53" (1/1) ... [2024-10-13 06:49:53,387 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 06:49:53,388 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 06:49:53,388 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 06:49:53,388 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 06:49:53,389 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:49:53" (1/1) ... [2024-10-13 06:49:53,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:49:53,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:49:53,421 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 06:49:53,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 06:49:53,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 06:49:53,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 06:49:53,471 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2024-10-13 06:49:53,471 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2024-10-13 06:49:53,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 06:49:53,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 06:49:53,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 06:49:53,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 06:49:53,471 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-10-13 06:49:53,472 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-10-13 06:49:53,473 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 06:49:53,589 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 06:49:53,591 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 06:49:53,737 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 06:49:53,738 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 06:49:53,857 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 06:49:53,857 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 06:49:53,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:49:53 BoogieIcfgContainer [2024-10-13 06:49:53,858 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 06:49:53,860 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 06:49:53,860 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 06:49:53,866 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 06:49:53,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:49:52" (1/3) ... [2024-10-13 06:49:53,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5982778d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:49:53, skipping insertion in model container [2024-10-13 06:49:53,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:49:53" (2/3) ... [2024-10-13 06:49:53,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5982778d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:49:53, skipping insertion in model container [2024-10-13 06:49:53,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:49:53" (3/3) ... [2024-10-13 06:49:53,869 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2024-10-13 06:49:53,886 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 06:49:53,888 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 06:49:53,888 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 06:49:53,959 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-13 06:49:54,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 52 transitions, 132 flow [2024-10-13 06:49:54,041 INFO L124 PetriNetUnfolderBase]: 2/48 cut-off events. [2024-10-13 06:49:54,041 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-13 06:49:54,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 48 events. 2/48 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2024-10-13 06:49:54,046 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 52 transitions, 132 flow [2024-10-13 06:49:54,049 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 46 transitions, 113 flow [2024-10-13 06:49:54,060 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 06:49:54,066 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;@7bc7974a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 06:49:54,067 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-13 06:49:54,081 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 06:49:54,081 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-10-13 06:49:54,081 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 06:49:54,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:49:54,083 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:49:54,084 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 06:49:54,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:49:54,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1265607429, now seen corresponding path program 1 times [2024-10-13 06:49:54,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:49:54,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543532751] [2024-10-13 06:49:54,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:49:54,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:49:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:49:54,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:49:54,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:49:54,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543532751] [2024-10-13 06:49:54,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543532751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:49:54,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:49:54,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:49:54,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160941907] [2024-10-13 06:49:54,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:49:54,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:49:54,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:49:54,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:49:54,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:49:54,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 52 [2024-10-13 06:49:54,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 113 flow. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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) [2024-10-13 06:49:54,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:49:54,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 52 [2024-10-13 06:49:54,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:49:57,245 INFO L124 PetriNetUnfolderBase]: 14455/23442 cut-off events. [2024-10-13 06:49:57,247 INFO L125 PetriNetUnfolderBase]: For 2172/2172 co-relation queries the response was YES. [2024-10-13 06:49:57,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44974 conditions, 23442 events. 14455/23442 cut-off events. For 2172/2172 co-relation queries the response was YES. Maximal size of possible extension queue 1038. Compared 183835 event pairs, 1527 based on Foata normal form. 1248/23762 useless extension candidates. Maximal degree in co-relation 39553. Up to 6266 conditions per place. [2024-10-13 06:49:57,462 INFO L140 encePairwiseOnDemand]: 40/52 looper letters, 152 selfloop transitions, 29 changer transitions 8/200 dead transitions. [2024-10-13 06:49:57,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 200 transitions, 880 flow [2024-10-13 06:49:57,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 06:49:57,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-13 06:49:57,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 368 transitions. [2024-10-13 06:49:57,479 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6433566433566433 [2024-10-13 06:49:57,480 INFO L175 Difference]: Start difference. First operand has 57 places, 46 transitions, 113 flow. Second operand 11 states and 368 transitions. [2024-10-13 06:49:57,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 200 transitions, 880 flow [2024-10-13 06:49:57,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 200 transitions, 819 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-13 06:49:57,509 INFO L231 Difference]: Finished difference. Result has 68 places, 75 transitions, 298 flow [2024-10-13 06:49:57,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=298, PETRI_PLACES=68, PETRI_TRANSITIONS=75} [2024-10-13 06:49:57,516 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 11 predicate places. [2024-10-13 06:49:57,516 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 75 transitions, 298 flow [2024-10-13 06:49:57,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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) [2024-10-13 06:49:57,517 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:49:57,517 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:49:57,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 06:49:57,517 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 06:49:57,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:49:57,518 INFO L85 PathProgramCache]: Analyzing trace with hash -635582357, now seen corresponding path program 1 times [2024-10-13 06:49:57,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:49:57,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049710950] [2024-10-13 06:49:57,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:49:57,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:49:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:49:57,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:49:57,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:49:57,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049710950] [2024-10-13 06:49:57,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049710950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:49:57,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:49:57,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 06:49:57,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391017652] [2024-10-13 06:49:57,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:49:57,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 06:49:57,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:49:57,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 06:49:57,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 06:49:57,603 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 52 [2024-10-13 06:49:57,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 75 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-10-13 06:49:57,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:49:57,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 52 [2024-10-13 06:49:57,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:49:59,161 INFO L124 PetriNetUnfolderBase]: 8080/14335 cut-off events. [2024-10-13 06:49:59,162 INFO L125 PetriNetUnfolderBase]: For 2028/2319 co-relation queries the response was YES. [2024-10-13 06:49:59,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29478 conditions, 14335 events. 8080/14335 cut-off events. For 2028/2319 co-relation queries the response was YES. Maximal size of possible extension queue 767. Compared 118448 event pairs, 3298 based on Foata normal form. 636/14308 useless extension candidates. Maximal degree in co-relation 26446. Up to 5869 conditions per place. [2024-10-13 06:49:59,275 INFO L140 encePairwiseOnDemand]: 46/52 looper letters, 39 selfloop transitions, 4 changer transitions 0/92 dead transitions. [2024-10-13 06:49:59,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 92 transitions, 424 flow [2024-10-13 06:49:59,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 06:49:59,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 06:49:59,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 113 transitions. [2024-10-13 06:49:59,278 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7243589743589743 [2024-10-13 06:49:59,278 INFO L175 Difference]: Start difference. First operand has 68 places, 75 transitions, 298 flow. Second operand 3 states and 113 transitions. [2024-10-13 06:49:59,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 92 transitions, 424 flow [2024-10-13 06:49:59,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 92 transitions, 424 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 06:49:59,343 INFO L231 Difference]: Finished difference. Result has 71 places, 75 transitions, 314 flow [2024-10-13 06:49:59,343 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=71, PETRI_TRANSITIONS=75} [2024-10-13 06:49:59,344 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 14 predicate places. [2024-10-13 06:49:59,345 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 75 transitions, 314 flow [2024-10-13 06:49:59,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-10-13 06:49:59,345 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:49:59,345 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:49:59,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 06:49:59,346 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 06:49:59,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:49:59,346 INFO L85 PathProgramCache]: Analyzing trace with hash -371689499, now seen corresponding path program 2 times [2024-10-13 06:49:59,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:49:59,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5555663] [2024-10-13 06:49:59,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:49:59,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:49:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:49:59,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:49:59,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:49:59,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5555663] [2024-10-13 06:49:59,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5555663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:49:59,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:49:59,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 06:49:59,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524751168] [2024-10-13 06:49:59,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:49:59,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 06:49:59,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:49:59,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 06:49:59,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:49:59,525 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 52 [2024-10-13 06:49:59,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 75 transitions, 314 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2024-10-13 06:49:59,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:49:59,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 52 [2024-10-13 06:49:59,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:50:00,665 INFO L124 PetriNetUnfolderBase]: 5102/10153 cut-off events. [2024-10-13 06:50:00,666 INFO L125 PetriNetUnfolderBase]: For 4069/4174 co-relation queries the response was YES. [2024-10-13 06:50:00,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22219 conditions, 10153 events. 5102/10153 cut-off events. For 4069/4174 co-relation queries the response was YES. Maximal size of possible extension queue 629. Compared 88332 event pairs, 1529 based on Foata normal form. 116/9870 useless extension candidates. Maximal degree in co-relation 18922. Up to 3529 conditions per place. [2024-10-13 06:50:00,724 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 50 selfloop transitions, 9 changer transitions 3/113 dead transitions. [2024-10-13 06:50:00,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 113 transitions, 540 flow [2024-10-13 06:50:00,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:50:00,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 06:50:00,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 160 transitions. [2024-10-13 06:50:00,727 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7692307692307693 [2024-10-13 06:50:00,727 INFO L175 Difference]: Start difference. First operand has 71 places, 75 transitions, 314 flow. Second operand 4 states and 160 transitions. [2024-10-13 06:50:00,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 113 transitions, 540 flow [2024-10-13 06:50:00,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 113 transitions, 528 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 06:50:00,784 INFO L231 Difference]: Finished difference. Result has 75 places, 81 transitions, 372 flow [2024-10-13 06:50:00,784 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=372, PETRI_PLACES=75, PETRI_TRANSITIONS=81} [2024-10-13 06:50:00,786 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 18 predicate places. [2024-10-13 06:50:00,786 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 81 transitions, 372 flow [2024-10-13 06:50:00,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2024-10-13 06:50:00,787 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:50:00,787 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:50:00,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 06:50:00,788 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 06:50:00,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:50:00,789 INFO L85 PathProgramCache]: Analyzing trace with hash 586943535, now seen corresponding path program 1 times [2024-10-13 06:50:00,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:50:00,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621077322] [2024-10-13 06:50:00,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:50:00,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:50:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:50:00,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:50:00,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:50:00,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621077322] [2024-10-13 06:50:00,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621077322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:50:00,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:50:00,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:50:00,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003458094] [2024-10-13 06:50:00,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:50:00,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:50:00,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:50:00,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:50:00,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:50:00,917 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 52 [2024-10-13 06:50:00,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 81 transitions, 372 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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) [2024-10-13 06:50:00,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:50:00,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 52 [2024-10-13 06:50:00,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:50:02,647 INFO L124 PetriNetUnfolderBase]: 12798/20636 cut-off events. [2024-10-13 06:50:02,647 INFO L125 PetriNetUnfolderBase]: For 17833/18171 co-relation queries the response was YES. [2024-10-13 06:50:02,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53371 conditions, 20636 events. 12798/20636 cut-off events. For 17833/18171 co-relation queries the response was YES. Maximal size of possible extension queue 1008. Compared 150738 event pairs, 2069 based on Foata normal form. 217/20557 useless extension candidates. Maximal degree in co-relation 48073. Up to 4446 conditions per place. [2024-10-13 06:50:02,802 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 154 selfloop transitions, 55 changer transitions 43/269 dead transitions. [2024-10-13 06:50:02,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 269 transitions, 1692 flow [2024-10-13 06:50:02,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 06:50:02,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-13 06:50:02,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 347 transitions. [2024-10-13 06:50:02,805 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6066433566433567 [2024-10-13 06:50:02,805 INFO L175 Difference]: Start difference. First operand has 75 places, 81 transitions, 372 flow. Second operand 11 states and 347 transitions. [2024-10-13 06:50:02,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 269 transitions, 1692 flow [2024-10-13 06:50:03,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 269 transitions, 1692 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 06:50:03,008 INFO L231 Difference]: Finished difference. Result has 93 places, 123 transitions, 836 flow [2024-10-13 06:50:03,009 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=836, PETRI_PLACES=93, PETRI_TRANSITIONS=123} [2024-10-13 06:50:03,010 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 36 predicate places. [2024-10-13 06:50:03,011 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 123 transitions, 836 flow [2024-10-13 06:50:03,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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) [2024-10-13 06:50:03,012 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:50:03,012 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] [2024-10-13 06:50:03,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 06:50:03,012 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 06:50:03,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:50:03,013 INFO L85 PathProgramCache]: Analyzing trace with hash -664613979, now seen corresponding path program 1 times [2024-10-13 06:50:03,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:50:03,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606645419] [2024-10-13 06:50:03,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:50:03,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:50:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:50:03,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:50:03,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:50:03,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606645419] [2024-10-13 06:50:03,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606645419] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:50:03,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:50:03,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:50:03,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17926722] [2024-10-13 06:50:03,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:50:03,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:50:03,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:50:03,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:50:03,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:50:03,250 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 52 [2024-10-13 06:50:03,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 123 transitions, 836 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:50:03,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:50:03,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 52 [2024-10-13 06:50:03,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:50:05,048 INFO L124 PetriNetUnfolderBase]: 11611/19330 cut-off events. [2024-10-13 06:50:05,049 INFO L125 PetriNetUnfolderBase]: For 27387/27495 co-relation queries the response was YES. [2024-10-13 06:50:05,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57249 conditions, 19330 events. 11611/19330 cut-off events. For 27387/27495 co-relation queries the response was YES. Maximal size of possible extension queue 933. Compared 146207 event pairs, 2026 based on Foata normal form. 207/19493 useless extension candidates. Maximal degree in co-relation 52497. Up to 5042 conditions per place. [2024-10-13 06:50:05,192 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 149 selfloop transitions, 62 changer transitions 10/238 dead transitions. [2024-10-13 06:50:05,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 238 transitions, 1798 flow [2024-10-13 06:50:05,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 06:50:05,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 06:50:05,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2024-10-13 06:50:05,194 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5903846153846154 [2024-10-13 06:50:05,195 INFO L175 Difference]: Start difference. First operand has 93 places, 123 transitions, 836 flow. Second operand 10 states and 307 transitions. [2024-10-13 06:50:05,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 238 transitions, 1798 flow [2024-10-13 06:50:05,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 238 transitions, 1776 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-13 06:50:05,580 INFO L231 Difference]: Finished difference. Result has 106 places, 134 transitions, 1111 flow [2024-10-13 06:50:05,581 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1111, PETRI_PLACES=106, PETRI_TRANSITIONS=134} [2024-10-13 06:50:05,583 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 49 predicate places. [2024-10-13 06:50:05,584 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 134 transitions, 1111 flow [2024-10-13 06:50:05,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:50:05,585 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:50:05,585 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] [2024-10-13 06:50:05,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 06:50:05,586 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 06:50:05,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:50:05,590 INFO L85 PathProgramCache]: Analyzing trace with hash -951663205, now seen corresponding path program 1 times [2024-10-13 06:50:05,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:50:05,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164076341] [2024-10-13 06:50:05,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:50:05,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:50:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:50:05,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:50:05,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:50:05,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164076341] [2024-10-13 06:50:05,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164076341] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:50:05,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:50:05,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:50:05,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013364940] [2024-10-13 06:50:05,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:50:05,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:50:05,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:50:05,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:50:05,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:50:05,715 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 52 [2024-10-13 06:50:05,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 134 transitions, 1111 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:50:05,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:50:05,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 52 [2024-10-13 06:50:05,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:50:07,712 INFO L124 PetriNetUnfolderBase]: 12202/20141 cut-off events. [2024-10-13 06:50:07,712 INFO L125 PetriNetUnfolderBase]: For 36751/36899 co-relation queries the response was YES. [2024-10-13 06:50:07,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62675 conditions, 20141 events. 12202/20141 cut-off events. For 36751/36899 co-relation queries the response was YES. Maximal size of possible extension queue 1000. Compared 151071 event pairs, 2300 based on Foata normal form. 251/20275 useless extension candidates. Maximal degree in co-relation 57130. Up to 4756 conditions per place. [2024-10-13 06:50:07,853 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 156 selfloop transitions, 68 changer transitions 20/267 dead transitions. [2024-10-13 06:50:07,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 267 transitions, 2213 flow [2024-10-13 06:50:07,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 06:50:07,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 06:50:07,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 320 transitions. [2024-10-13 06:50:07,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6153846153846154 [2024-10-13 06:50:07,855 INFO L175 Difference]: Start difference. First operand has 106 places, 134 transitions, 1111 flow. Second operand 10 states and 320 transitions. [2024-10-13 06:50:07,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 267 transitions, 2213 flow [2024-10-13 06:50:08,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 267 transitions, 2204 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-13 06:50:08,160 INFO L231 Difference]: Finished difference. Result has 119 places, 148 transitions, 1462 flow [2024-10-13 06:50:08,161 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1462, PETRI_PLACES=119, PETRI_TRANSITIONS=148} [2024-10-13 06:50:08,161 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 62 predicate places. [2024-10-13 06:50:08,162 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 148 transitions, 1462 flow [2024-10-13 06:50:08,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 06:50:08,162 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:50:08,162 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] [2024-10-13 06:50:08,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 06:50:08,162 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 06:50:08,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:50:08,163 INFO L85 PathProgramCache]: Analyzing trace with hash -319968369, now seen corresponding path program 1 times [2024-10-13 06:50:08,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:50:08,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874968808] [2024-10-13 06:50:08,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:50:08,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:50:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:50:08,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:50:08,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:50:08,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874968808] [2024-10-13 06:50:08,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874968808] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:50:08,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:50:08,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:50:08,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13214030] [2024-10-13 06:50:08,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:50:08,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:50:08,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:50:08,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:50:08,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:50:08,256 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 52 [2024-10-13 06:50:08,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 148 transitions, 1462 flow. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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) [2024-10-13 06:50:08,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:50:08,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 52 [2024-10-13 06:50:08,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:50:09,773 INFO L124 PetriNetUnfolderBase]: 4484/10214 cut-off events. [2024-10-13 06:50:09,773 INFO L125 PetriNetUnfolderBase]: For 21832/22147 co-relation queries the response was YES. [2024-10-13 06:50:09,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32491 conditions, 10214 events. 4484/10214 cut-off events. For 21832/22147 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 97862 event pairs, 1402 based on Foata normal form. 407/10468 useless extension candidates. Maximal degree in co-relation 31978. Up to 2636 conditions per place. [2024-10-13 06:50:09,821 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 44 selfloop transitions, 8 changer transitions 32/158 dead transitions. [2024-10-13 06:50:09,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 158 transitions, 1296 flow [2024-10-13 06:50:09,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:50:09,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 06:50:09,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 187 transitions. [2024-10-13 06:50:09,824 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7192307692307692 [2024-10-13 06:50:09,824 INFO L175 Difference]: Start difference. First operand has 119 places, 148 transitions, 1462 flow. Second operand 5 states and 187 transitions. [2024-10-13 06:50:09,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 158 transitions, 1296 flow [2024-10-13 06:50:10,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 158 transitions, 1208 flow, removed 7 selfloop flow, removed 6 redundant places. [2024-10-13 06:50:10,006 INFO L231 Difference]: Finished difference. Result has 118 places, 103 transitions, 804 flow [2024-10-13 06:50:10,007 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=977, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=804, PETRI_PLACES=118, PETRI_TRANSITIONS=103} [2024-10-13 06:50:10,007 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 61 predicate places. [2024-10-13 06:50:10,008 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 103 transitions, 804 flow [2024-10-13 06:50:10,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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) [2024-10-13 06:50:10,008 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 06:50:10,008 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] [2024-10-13 06:50:10,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 06:50:10,008 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting readerErr0ASSERT_VIOLATIONERROR_FUNCTION === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-13 06:50:10,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:50:10,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1031734119, now seen corresponding path program 2 times [2024-10-13 06:50:10,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:50:10,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004148365] [2024-10-13 06:50:10,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:50:10,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:50:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:50:10,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 06:50:10,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:50:10,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004148365] [2024-10-13 06:50:10,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004148365] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:50:10,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:50:10,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:50:10,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577294007] [2024-10-13 06:50:10,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:50:10,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:50:10,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:50:10,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:50:10,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:50:10,089 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 52 [2024-10-13 06:50:10,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 103 transitions, 804 flow. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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) [2024-10-13 06:50:10,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 06:50:10,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 52 [2024-10-13 06:50:10,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 06:50:10,517 INFO L124 PetriNetUnfolderBase]: 2176/4926 cut-off events. [2024-10-13 06:50:10,517 INFO L125 PetriNetUnfolderBase]: For 9994/10002 co-relation queries the response was YES. [2024-10-13 06:50:10,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15918 conditions, 4926 events. 2176/4926 cut-off events. For 9994/10002 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 39676 event pairs, 854 based on Foata normal form. 55/4928 useless extension candidates. Maximal degree in co-relation 15888. Up to 1579 conditions per place. [2024-10-13 06:50:10,543 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 0 selfloop transitions, 0 changer transitions 92/92 dead transitions. [2024-10-13 06:50:10,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 92 transitions, 610 flow [2024-10-13 06:50:10,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:50:10,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 06:50:10,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 178 transitions. [2024-10-13 06:50:10,545 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6846153846153846 [2024-10-13 06:50:10,545 INFO L175 Difference]: Start difference. First operand has 118 places, 103 transitions, 804 flow. Second operand 5 states and 178 transitions. [2024-10-13 06:50:10,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 92 transitions, 610 flow [2024-10-13 06:50:10,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 92 transitions, 506 flow, removed 12 selfloop flow, removed 20 redundant places. [2024-10-13 06:50:10,587 INFO L231 Difference]: Finished difference. Result has 89 places, 0 transitions, 0 flow [2024-10-13 06:50:10,588 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=89, PETRI_TRANSITIONS=0} [2024-10-13 06:50:10,588 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 32 predicate places. [2024-10-13 06:50:10,588 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 0 transitions, 0 flow [2024-10-13 06:50:10,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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) [2024-10-13 06:50:10,592 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2024-10-13 06:50:10,592 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2024-10-13 06:50:10,593 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-10-13 06:50:10,593 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-10-13 06:50:10,593 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-10-13 06:50:10,593 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2024-10-13 06:50:10,593 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2024-10-13 06:50:10,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 06:50:10,594 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1] [2024-10-13 06:50:10,600 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 06:50:10,600 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 06:50:10,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:50:10 BasicIcfg [2024-10-13 06:50:10,610 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 06:50:10,611 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 06:50:10,611 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 06:50:10,611 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 06:50:10,611 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:49:53" (3/4) ... [2024-10-13 06:50:10,617 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 06:50:10,620 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2024-10-13 06:50:10,621 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2024-10-13 06:50:10,626 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2024-10-13 06:50:10,626 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-13 06:50:10,626 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-13 06:50:10,626 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 06:50:10,721 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 06:50:10,721 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 06:50:10,722 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 06:50:10,722 INFO L158 Benchmark]: Toolchain (without parser) took 17961.48ms. Allocated memory was 151.0MB in the beginning and 8.7GB in the end (delta: 8.6GB). Free memory was 76.1MB in the beginning and 7.6GB in the end (delta: -7.6GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2024-10-13 06:50:10,724 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 151.0MB. Free memory was 102.2MB in the beginning and 102.0MB in the end (delta: 241.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 06:50:10,724 INFO L158 Benchmark]: CACSL2BoogieTranslator took 524.62ms. Allocated memory is still 151.0MB. Free memory was 75.9MB in the beginning and 119.1MB in the end (delta: -43.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-13 06:50:10,724 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.24ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 119.0MB in the beginning and 166.9MB in the end (delta: -47.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2024-10-13 06:50:10,725 INFO L158 Benchmark]: Boogie Preprocessor took 40.53ms. Allocated memory is still 197.1MB. Free memory was 166.9MB in the beginning and 164.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 06:50:10,725 INFO L158 Benchmark]: RCFGBuilder took 470.45ms. Allocated memory is still 197.1MB. Free memory was 164.8MB in the beginning and 141.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-13 06:50:10,725 INFO L158 Benchmark]: TraceAbstraction took 16750.09ms. Allocated memory was 197.1MB in the beginning and 8.7GB in the end (delta: 8.5GB). Free memory was 140.7MB in the beginning and 7.6GB in the end (delta: -7.5GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2024-10-13 06:50:10,725 INFO L158 Benchmark]: Witness Printer took 111.12ms. Allocated memory is still 8.7GB. Free memory was 7.6GB in the beginning and 7.6GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 06:50:10,727 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 151.0MB. Free memory was 102.2MB in the beginning and 102.0MB in the end (delta: 241.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 524.62ms. Allocated memory is still 151.0MB. Free memory was 75.9MB in the beginning and 119.1MB in the end (delta: -43.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.24ms. Allocated memory was 151.0MB in the beginning and 197.1MB in the end (delta: 46.1MB). Free memory was 119.0MB in the beginning and 166.9MB in the end (delta: -47.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.53ms. Allocated memory is still 197.1MB. Free memory was 166.9MB in the beginning and 164.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 470.45ms. Allocated memory is still 197.1MB. Free memory was 164.8MB in the beginning and 141.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 16750.09ms. Allocated memory was 197.1MB in the beginning and 8.7GB in the end (delta: 8.5GB). Free memory was 140.7MB in the beginning and 7.6GB in the end (delta: -7.5GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Witness Printer took 111.12ms. Allocated memory is still 8.7GB. Free memory was 7.6GB in the beginning and 7.6GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 739]: 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 7 procedures, 73 locations, 7 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: 16.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 15.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 716 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 679 mSDsluCounter, 151 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 92 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1981 IncrementalHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 59 mSDtfsCounter, 1981 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1462occurred in iteration=6, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 284 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-13 06:50:10,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE