./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/triangular-longer-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/triangular-longer-2.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 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:27:59,173 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:27:59,254 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:27:59,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:27:59,261 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:27:59,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:27:59,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:27:59,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:27:59,299 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:27:59,300 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:27:59,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:27:59,301 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:27:59,302 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:27:59,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:27:59,305 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:27:59,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:27:59,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:27:59,306 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:27:59,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:27:59,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:27:59,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:27:59,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:27:59,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:27:59,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:27:59,312 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:27:59,313 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:27:59,313 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:27:59,313 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:27:59,313 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:27:59,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:27:59,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:27:59,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:27:59,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:27:59,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:27:59,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:27:59,315 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:27:59,315 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:27:59,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:27:59,316 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:27:59,316 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:27:59,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:27:59,317 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:27:59,317 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 [2024-11-19 01:27:59,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:27:59,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:27:59,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:27:59,572 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:27:59,572 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:27:59,574 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/triangular-longer-2.i [2024-11-19 01:28:00,995 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:28:01,223 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:28:01,224 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-2.i [2024-11-19 01:28:01,241 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a93a306a/55b227f4951846b3baf674221429f8d5/FLAGcbd7ee640 [2024-11-19 01:28:01,567 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a93a306a/55b227f4951846b3baf674221429f8d5 [2024-11-19 01:28:01,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:28:01,571 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:28:01,573 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:28:01,573 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:28:01,579 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:28:01,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:28:01" (1/1) ... [2024-11-19 01:28:01,580 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd2c500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:01, skipping insertion in model container [2024-11-19 01:28:01,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:28:01" (1/1) ... [2024-11-19 01:28:01,629 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:28:02,002 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-2.i[30963,30976] [2024-11-19 01:28:02,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:28:02,044 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:28:02,090 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-2.i[30963,30976] [2024-11-19 01:28:02,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:28:02,125 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:28:02,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:02 WrapperNode [2024-11-19 01:28:02,126 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:28:02,127 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:28:02,127 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:28:02,127 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:28:02,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:02" (1/1) ... [2024-11-19 01:28:02,151 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:02" (1/1) ... [2024-11-19 01:28:02,174 INFO L138 Inliner]: procedures = 168, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2024-11-19 01:28:02,176 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:28:02,177 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:28:02,177 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:28:02,177 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:28:02,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:02" (1/1) ... [2024-11-19 01:28:02,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:02" (1/1) ... [2024-11-19 01:28:02,191 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:02" (1/1) ... [2024-11-19 01:28:02,207 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 01:28:02,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:02" (1/1) ... [2024-11-19 01:28:02,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:02" (1/1) ... [2024-11-19 01:28:02,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:02" (1/1) ... [2024-11-19 01:28:02,218 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:02" (1/1) ... [2024-11-19 01:28:02,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:02" (1/1) ... [2024-11-19 01:28:02,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:02" (1/1) ... [2024-11-19 01:28:02,227 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:28:02,230 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:28:02,230 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:28:02,231 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:28:02,231 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:02" (1/1) ... [2024-11-19 01:28:02,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:28:02,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:28:02,264 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 01:28:02,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 01:28:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-19 01:28:02,314 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-19 01:28:02,314 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-19 01:28:02,315 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-19 01:28:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 01:28:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:28:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:28:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 01:28:02,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:28:02,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:28:02,317 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 01:28:02,434 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:28:02,436 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:28:02,552 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 01:28:02,552 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:28:02,653 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:28:02,654 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 01:28:02,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:28:02 BoogieIcfgContainer [2024-11-19 01:28:02,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:28:02,656 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:28:02,656 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:28:02,659 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:28:02,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:28:01" (1/3) ... [2024-11-19 01:28:02,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6578cefb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:28:02, skipping insertion in model container [2024-11-19 01:28:02,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:28:02" (2/3) ... [2024-11-19 01:28:02,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6578cefb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:28:02, skipping insertion in model container [2024-11-19 01:28:02,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:28:02" (3/3) ... [2024-11-19 01:28:02,662 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longer-2.i [2024-11-19 01:28:02,677 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:28:02,678 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:28:02,678 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 01:28:02,717 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 01:28:02,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 24 transitions, 56 flow [2024-11-19 01:28:02,779 INFO L124 PetriNetUnfolderBase]: 3/22 cut-off events. [2024-11-19 01:28:02,779 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 01:28:02,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 22 events. 3/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2024-11-19 01:28:02,782 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 24 transitions, 56 flow [2024-11-19 01:28:02,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 22 transitions, 50 flow [2024-11-19 01:28:02,796 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:28:02,803 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;@8ae1650, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:28:02,804 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-19 01:28:02,815 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 01:28:02,815 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events. [2024-11-19 01:28:02,815 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 01:28:02,815 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:02,816 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:02,817 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:02,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:02,822 INFO L85 PathProgramCache]: Analyzing trace with hash 762204344, now seen corresponding path program 1 times [2024-11-19 01:28:02,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:02,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032618117] [2024-11-19 01:28:02,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:28:02,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:28:03,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:03,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:03,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032618117] [2024-11-19 01:28:03,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032618117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:28:03,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:28:03,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:28:03,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287538682] [2024-11-19 01:28:03,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:28:03,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:28:03,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:03,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:28:03,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:28:03,387 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:03,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 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) [2024-11-19 01:28:03,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:03,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:03,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:03,700 INFO L124 PetriNetUnfolderBase]: 385/647 cut-off events. [2024-11-19 01:28:03,701 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 01:28:03,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1261 conditions, 647 events. 385/647 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2667 event pairs, 57 based on Foata normal form. 15/646 useless extension candidates. Maximal degree in co-relation 1251. Up to 303 conditions per place. [2024-11-19 01:28:03,708 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 29 selfloop transitions, 7 changer transitions 31/70 dead transitions. [2024-11-19 01:28:03,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 70 transitions, 283 flow [2024-11-19 01:28:03,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:28:03,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 01:28:03,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 111 transitions. [2024-11-19 01:28:03,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.578125 [2024-11-19 01:28:03,725 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 50 flow. Second operand 8 states and 111 transitions. [2024-11-19 01:28:03,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 70 transitions, 283 flow [2024-11-19 01:28:03,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 70 transitions, 280 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 01:28:03,732 INFO L231 Difference]: Finished difference. Result has 37 places, 25 transitions, 97 flow [2024-11-19 01:28:03,734 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=97, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2024-11-19 01:28:03,736 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2024-11-19 01:28:03,737 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 25 transitions, 97 flow [2024-11-19 01:28:03,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 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) [2024-11-19 01:28:03,737 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:03,737 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:03,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 01:28:03,738 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:03,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:03,738 INFO L85 PathProgramCache]: Analyzing trace with hash -517073457, now seen corresponding path program 1 times [2024-11-19 01:28:03,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:03,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663442283] [2024-11-19 01:28:03,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:28:03,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:28:03,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:03,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:03,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663442283] [2024-11-19 01:28:03,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663442283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:28:03,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:28:03,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:28:03,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737965972] [2024-11-19 01:28:03,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:28:03,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:28:03,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:03,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:28:03,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:28:03,923 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:03,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 25 transitions, 97 flow. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2024-11-19 01:28:03,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:03,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:03,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:04,107 INFO L124 PetriNetUnfolderBase]: 247/446 cut-off events. [2024-11-19 01:28:04,108 INFO L125 PetriNetUnfolderBase]: For 416/422 co-relation queries the response was YES. [2024-11-19 01:28:04,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1174 conditions, 446 events. 247/446 cut-off events. For 416/422 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1792 event pairs, 63 based on Foata normal form. 24/467 useless extension candidates. Maximal degree in co-relation 1158. Up to 190 conditions per place. [2024-11-19 01:28:04,114 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 27 selfloop transitions, 8 changer transitions 15/53 dead transitions. [2024-11-19 01:28:04,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 53 transitions, 291 flow [2024-11-19 01:28:04,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:28:04,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 01:28:04,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 76 transitions. [2024-11-19 01:28:04,117 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2024-11-19 01:28:04,117 INFO L175 Difference]: Start difference. First operand has 37 places, 25 transitions, 97 flow. Second operand 6 states and 76 transitions. [2024-11-19 01:28:04,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 53 transitions, 291 flow [2024-11-19 01:28:04,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 53 transitions, 287 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-19 01:28:04,122 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 141 flow [2024-11-19 01:28:04,122 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=141, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2024-11-19 01:28:04,123 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 13 predicate places. [2024-11-19 01:28:04,123 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 141 flow [2024-11-19 01:28:04,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2024-11-19 01:28:04,123 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:04,124 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:04,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:28:04,124 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:04,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:04,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1754207660, now seen corresponding path program 1 times [2024-11-19 01:28:04,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:04,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167436904] [2024-11-19 01:28:04,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:28:04,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:28:04,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:04,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:04,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167436904] [2024-11-19 01:28:04,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167436904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:28:04,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:28:04,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:28:04,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240454760] [2024-11-19 01:28:04,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:28:04,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:28:04,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:04,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:28:04,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:28:04,258 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:04,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 141 flow. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2024-11-19 01:28:04,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:04,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:04,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:04,473 INFO L124 PetriNetUnfolderBase]: 391/713 cut-off events. [2024-11-19 01:28:04,473 INFO L125 PetriNetUnfolderBase]: For 1184/1190 co-relation queries the response was YES. [2024-11-19 01:28:04,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2118 conditions, 713 events. 391/713 cut-off events. For 1184/1190 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3059 event pairs, 89 based on Foata normal form. 33/745 useless extension candidates. Maximal degree in co-relation 2098. Up to 264 conditions per place. [2024-11-19 01:28:04,479 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 47 selfloop transitions, 11 changer transitions 20/81 dead transitions. [2024-11-19 01:28:04,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 81 transitions, 515 flow [2024-11-19 01:28:04,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:28:04,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 01:28:04,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 117 transitions. [2024-11-19 01:28:04,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-11-19 01:28:04,481 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 141 flow. Second operand 9 states and 117 transitions. [2024-11-19 01:28:04,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 81 transitions, 515 flow [2024-11-19 01:28:04,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 81 transitions, 473 flow, removed 20 selfloop flow, removed 3 redundant places. [2024-11-19 01:28:04,487 INFO L231 Difference]: Finished difference. Result has 49 places, 35 transitions, 237 flow [2024-11-19 01:28:04,487 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=237, PETRI_PLACES=49, PETRI_TRANSITIONS=35} [2024-11-19 01:28:04,488 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 23 predicate places. [2024-11-19 01:28:04,488 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 35 transitions, 237 flow [2024-11-19 01:28:04,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2024-11-19 01:28:04,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:04,489 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:04,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:28:04,489 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:04,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:04,489 INFO L85 PathProgramCache]: Analyzing trace with hash -2024183696, now seen corresponding path program 2 times [2024-11-19 01:28:04,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:04,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071169566] [2024-11-19 01:28:04,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:28:04,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:04,507 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:28:04,507 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:04,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:04,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:04,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071169566] [2024-11-19 01:28:04,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071169566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:28:04,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:28:04,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:28:04,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462405469] [2024-11-19 01:28:04,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:28:04,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:28:04,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:04,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:28:04,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:28:04,612 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:04,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 35 transitions, 237 flow. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2024-11-19 01:28:04,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:04,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:04,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:04,784 INFO L124 PetriNetUnfolderBase]: 328/608 cut-off events. [2024-11-19 01:28:04,785 INFO L125 PetriNetUnfolderBase]: For 1943/1949 co-relation queries the response was YES. [2024-11-19 01:28:04,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2046 conditions, 608 events. 328/608 cut-off events. For 1943/1949 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2541 event pairs, 89 based on Foata normal form. 51/658 useless extension candidates. Maximal degree in co-relation 2020. Up to 234 conditions per place. [2024-11-19 01:28:04,789 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 38 selfloop transitions, 11 changer transitions 28/80 dead transitions. [2024-11-19 01:28:04,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 80 transitions, 609 flow [2024-11-19 01:28:04,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:28:04,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 01:28:04,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 103 transitions. [2024-11-19 01:28:04,790 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5364583333333334 [2024-11-19 01:28:04,791 INFO L175 Difference]: Start difference. First operand has 49 places, 35 transitions, 237 flow. Second operand 8 states and 103 transitions. [2024-11-19 01:28:04,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 80 transitions, 609 flow [2024-11-19 01:28:04,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 80 transitions, 565 flow, removed 22 selfloop flow, removed 2 redundant places. [2024-11-19 01:28:04,800 INFO L231 Difference]: Finished difference. Result has 56 places, 36 transitions, 268 flow [2024-11-19 01:28:04,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=268, PETRI_PLACES=56, PETRI_TRANSITIONS=36} [2024-11-19 01:28:04,802 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 30 predicate places. [2024-11-19 01:28:04,802 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 36 transitions, 268 flow [2024-11-19 01:28:04,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2024-11-19 01:28:04,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:04,803 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:04,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:28:04,804 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:04,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:04,804 INFO L85 PathProgramCache]: Analyzing trace with hash 134530067, now seen corresponding path program 1 times [2024-11-19 01:28:04,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:04,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857070362] [2024-11-19 01:28:04,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:28:04,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:28:04,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:04,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:04,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857070362] [2024-11-19 01:28:04,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857070362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:28:04,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:28:04,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:28:04,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727856887] [2024-11-19 01:28:04,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:28:04,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:28:04,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:04,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:28:04,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:28:04,955 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:04,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 36 transitions, 268 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-19 01:28:04,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:04,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:04,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:05,203 INFO L124 PetriNetUnfolderBase]: 463/851 cut-off events. [2024-11-19 01:28:05,204 INFO L125 PetriNetUnfolderBase]: For 4064/4070 co-relation queries the response was YES. [2024-11-19 01:28:05,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3166 conditions, 851 events. 463/851 cut-off events. For 4064/4070 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3751 event pairs, 65 based on Foata normal form. 33/881 useless extension candidates. Maximal degree in co-relation 3135. Up to 181 conditions per place. [2024-11-19 01:28:05,211 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 54 selfloop transitions, 20 changer transitions 23/100 dead transitions. [2024-11-19 01:28:05,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 100 transitions, 818 flow [2024-11-19 01:28:05,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:28:05,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-19 01:28:05,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 141 transitions. [2024-11-19 01:28:05,213 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5340909090909091 [2024-11-19 01:28:05,213 INFO L175 Difference]: Start difference. First operand has 56 places, 36 transitions, 268 flow. Second operand 11 states and 141 transitions. [2024-11-19 01:28:05,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 100 transitions, 818 flow [2024-11-19 01:28:05,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 100 transitions, 723 flow, removed 38 selfloop flow, removed 7 redundant places. [2024-11-19 01:28:05,223 INFO L231 Difference]: Finished difference. Result has 63 places, 42 transitions, 378 flow [2024-11-19 01:28:05,224 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=378, PETRI_PLACES=63, PETRI_TRANSITIONS=42} [2024-11-19 01:28:05,226 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 37 predicate places. [2024-11-19 01:28:05,226 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 42 transitions, 378 flow [2024-11-19 01:28:05,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-19 01:28:05,227 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:05,227 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:05,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:28:05,228 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:05,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:05,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1091700605, now seen corresponding path program 2 times [2024-11-19 01:28:05,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:05,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788748389] [2024-11-19 01:28:05,232 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:28:05,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:05,243 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:28:05,243 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:05,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:05,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:05,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788748389] [2024-11-19 01:28:05,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788748389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:28:05,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:28:05,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:28:05,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053804827] [2024-11-19 01:28:05,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:28:05,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:28:05,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:05,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:28:05,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:28:05,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:05,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 42 transitions, 378 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-19 01:28:05,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:05,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:05,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:05,571 INFO L124 PetriNetUnfolderBase]: 400/749 cut-off events. [2024-11-19 01:28:05,572 INFO L125 PetriNetUnfolderBase]: For 5302/5308 co-relation queries the response was YES. [2024-11-19 01:28:05,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3037 conditions, 749 events. 400/749 cut-off events. For 5302/5308 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3284 event pairs, 65 based on Foata normal form. 51/797 useless extension candidates. Maximal degree in co-relation 3003. Up to 151 conditions per place. [2024-11-19 01:28:05,577 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 41 selfloop transitions, 20 changer transitions 31/95 dead transitions. [2024-11-19 01:28:05,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 95 transitions, 902 flow [2024-11-19 01:28:05,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:28:05,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 01:28:05,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 125 transitions. [2024-11-19 01:28:05,579 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5208333333333334 [2024-11-19 01:28:05,579 INFO L175 Difference]: Start difference. First operand has 63 places, 42 transitions, 378 flow. Second operand 10 states and 125 transitions. [2024-11-19 01:28:05,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 95 transitions, 902 flow [2024-11-19 01:28:05,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 95 transitions, 793 flow, removed 45 selfloop flow, removed 6 redundant places. [2024-11-19 01:28:05,590 INFO L231 Difference]: Finished difference. Result has 68 places, 43 transitions, 398 flow [2024-11-19 01:28:05,590 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=398, PETRI_PLACES=68, PETRI_TRANSITIONS=43} [2024-11-19 01:28:05,593 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 42 predicate places. [2024-11-19 01:28:05,593 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 43 transitions, 398 flow [2024-11-19 01:28:05,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-19 01:28:05,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:05,594 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:05,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 01:28:05,594 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:05,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:05,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1063992253, now seen corresponding path program 3 times [2024-11-19 01:28:05,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:05,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571688021] [2024-11-19 01:28:05,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 01:28:05,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:05,615 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 01:28:05,616 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:05,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:05,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:05,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571688021] [2024-11-19 01:28:05,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571688021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:28:05,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:28:05,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:28:05,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162831632] [2024-11-19 01:28:05,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:28:05,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:28:05,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:05,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:28:05,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:28:05,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:05,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 43 transitions, 398 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-19 01:28:05,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:05,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:05,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:05,980 INFO L124 PetriNetUnfolderBase]: 409/755 cut-off events. [2024-11-19 01:28:05,981 INFO L125 PetriNetUnfolderBase]: For 5090/5096 co-relation queries the response was YES. [2024-11-19 01:28:05,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3064 conditions, 755 events. 409/755 cut-off events. For 5090/5096 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3374 event pairs, 116 based on Foata normal form. 24/778 useless extension candidates. Maximal degree in co-relation 3028. Up to 363 conditions per place. [2024-11-19 01:28:05,986 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 52 selfloop transitions, 16 changer transitions 25/96 dead transitions. [2024-11-19 01:28:05,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 96 transitions, 882 flow [2024-11-19 01:28:05,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:28:05,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-19 01:28:05,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 135 transitions. [2024-11-19 01:28:05,989 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5113636363636364 [2024-11-19 01:28:05,989 INFO L175 Difference]: Start difference. First operand has 68 places, 43 transitions, 398 flow. Second operand 11 states and 135 transitions. [2024-11-19 01:28:05,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 96 transitions, 882 flow [2024-11-19 01:28:05,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 96 transitions, 798 flow, removed 26 selfloop flow, removed 8 redundant places. [2024-11-19 01:28:06,000 INFO L231 Difference]: Finished difference. Result has 71 places, 46 transitions, 433 flow [2024-11-19 01:28:06,001 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=433, PETRI_PLACES=71, PETRI_TRANSITIONS=46} [2024-11-19 01:28:06,001 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 45 predicate places. [2024-11-19 01:28:06,001 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 46 transitions, 433 flow [2024-11-19 01:28:06,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2024-11-19 01:28:06,002 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:06,002 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:06,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:28:06,002 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:06,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:06,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1423899474, now seen corresponding path program 1 times [2024-11-19 01:28:06,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:06,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188600354] [2024-11-19 01:28:06,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:28:06,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:28:06,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:06,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:06,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188600354] [2024-11-19 01:28:06,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188600354] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:28:06,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670442497] [2024-11-19 01:28:06,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:28:06,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:28:06,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:28:06,114 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:28:06,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 01:28:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:28:06,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 01:28:06,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:28:06,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:06,272 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:28:06,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:06,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670442497] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:28:06,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:28:06,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-19 01:28:06,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583259149] [2024-11-19 01:28:06,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:28:06,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 01:28:06,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:06,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 01:28:06,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:28:06,411 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:06,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 46 transitions, 433 flow. Second operand has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 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) [2024-11-19 01:28:06,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:06,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:06,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:06,899 INFO L124 PetriNetUnfolderBase]: 643/1166 cut-off events. [2024-11-19 01:28:06,899 INFO L125 PetriNetUnfolderBase]: For 9744/9750 co-relation queries the response was YES. [2024-11-19 01:28:06,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4981 conditions, 1166 events. 643/1166 cut-off events. For 9744/9750 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5061 event pairs, 59 based on Foata normal form. 51/1214 useless extension candidates. Maximal degree in co-relation 4944. Up to 207 conditions per place. [2024-11-19 01:28:06,908 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 66 selfloop transitions, 35 changer transitions 56/160 dead transitions. [2024-11-19 01:28:06,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 160 transitions, 1559 flow [2024-11-19 01:28:06,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 01:28:06,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-19 01:28:06,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 236 transitions. [2024-11-19 01:28:06,910 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5175438596491229 [2024-11-19 01:28:06,910 INFO L175 Difference]: Start difference. First operand has 71 places, 46 transitions, 433 flow. Second operand 19 states and 236 transitions. [2024-11-19 01:28:06,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 160 transitions, 1559 flow [2024-11-19 01:28:06,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 160 transitions, 1482 flow, removed 28 selfloop flow, removed 7 redundant places. [2024-11-19 01:28:06,925 INFO L231 Difference]: Finished difference. Result has 90 places, 62 transitions, 781 flow [2024-11-19 01:28:06,925 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=781, PETRI_PLACES=90, PETRI_TRANSITIONS=62} [2024-11-19 01:28:06,925 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 64 predicate places. [2024-11-19 01:28:06,926 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 62 transitions, 781 flow [2024-11-19 01:28:06,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 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) [2024-11-19 01:28:06,926 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:06,926 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:06,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 01:28:07,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:28:07,127 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:07,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:07,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1514895422, now seen corresponding path program 1 times [2024-11-19 01:28:07,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:07,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367981042] [2024-11-19 01:28:07,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:28:07,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:28:07,318 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:07,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:07,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367981042] [2024-11-19 01:28:07,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367981042] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:28:07,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668569378] [2024-11-19 01:28:07,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:28:07,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:28:07,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:28:07,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:28:07,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 01:28:07,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:28:07,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 01:28:07,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:28:07,509 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:07,510 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:28:07,736 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:07,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668569378] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:28:07,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:28:07,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-19 01:28:07,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971022106] [2024-11-19 01:28:07,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:28:07,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 01:28:07,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:07,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 01:28:07,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-19 01:28:07,778 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:07,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 62 transitions, 781 flow. Second operand has 17 states, 17 states have (on average 7.294117647058823) internal successors, (124), 17 states have internal predecessors, (124), 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) [2024-11-19 01:28:07,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:07,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:07,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:08,465 INFO L124 PetriNetUnfolderBase]: 841/1577 cut-off events. [2024-11-19 01:28:08,466 INFO L125 PetriNetUnfolderBase]: For 23238/23244 co-relation queries the response was YES. [2024-11-19 01:28:08,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7809 conditions, 1577 events. 841/1577 cut-off events. For 23238/23244 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 6922 event pairs, 215 based on Foata normal form. 87/1663 useless extension candidates. Maximal degree in co-relation 7765. Up to 756 conditions per place. [2024-11-19 01:28:08,478 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 95 selfloop transitions, 25 changer transitions 89/212 dead transitions. [2024-11-19 01:28:08,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 212 transitions, 2565 flow [2024-11-19 01:28:08,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-19 01:28:08,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-19 01:28:08,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 301 transitions. [2024-11-19 01:28:08,480 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5016666666666667 [2024-11-19 01:28:08,480 INFO L175 Difference]: Start difference. First operand has 90 places, 62 transitions, 781 flow. Second operand 25 states and 301 transitions. [2024-11-19 01:28:08,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 212 transitions, 2565 flow [2024-11-19 01:28:08,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 212 transitions, 2040 flow, removed 249 selfloop flow, removed 10 redundant places. [2024-11-19 01:28:08,519 INFO L231 Difference]: Finished difference. Result has 118 places, 76 transitions, 882 flow [2024-11-19 01:28:08,520 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=882, PETRI_PLACES=118, PETRI_TRANSITIONS=76} [2024-11-19 01:28:08,521 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 92 predicate places. [2024-11-19 01:28:08,521 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 76 transitions, 882 flow [2024-11-19 01:28:08,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.294117647058823) internal successors, (124), 17 states have internal predecessors, (124), 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) [2024-11-19 01:28:08,521 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:08,521 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:08,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 01:28:08,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-19 01:28:08,724 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:08,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:08,725 INFO L85 PathProgramCache]: Analyzing trace with hash 2021366800, now seen corresponding path program 2 times [2024-11-19 01:28:08,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:08,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144519571] [2024-11-19 01:28:08,726 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:28:08,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:08,741 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 01:28:08,741 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:08,896 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:08,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:08,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144519571] [2024-11-19 01:28:08,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144519571] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:28:08,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253656544] [2024-11-19 01:28:08,897 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:28:08,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:28:08,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:28:08,899 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:28:08,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 01:28:08,959 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 01:28:08,959 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:08,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 01:28:08,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:28:09,031 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:09,032 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:28:09,181 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:09,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253656544] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:28:09,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:28:09,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-19 01:28:09,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808795824] [2024-11-19 01:28:09,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:28:09,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 01:28:09,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:09,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 01:28:09,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-19 01:28:09,202 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:09,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 76 transitions, 882 flow. Second operand has 17 states, 17 states have (on average 7.352941176470588) internal successors, (125), 17 states have internal predecessors, (125), 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) [2024-11-19 01:28:09,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:09,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:09,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:10,145 INFO L124 PetriNetUnfolderBase]: 1435/2711 cut-off events. [2024-11-19 01:28:10,145 INFO L125 PetriNetUnfolderBase]: For 73809/73815 co-relation queries the response was YES. [2024-11-19 01:28:10,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15196 conditions, 2711 events. 1435/2711 cut-off events. For 73809/73815 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 14454 event pairs, 136 based on Foata normal form. 87/2797 useless extension candidates. Maximal degree in co-relation 15139. Up to 501 conditions per place. [2024-11-19 01:28:10,239 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 127 selfloop transitions, 80 changer transitions 91/301 dead transitions. [2024-11-19 01:28:10,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 301 transitions, 4066 flow [2024-11-19 01:28:10,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-19 01:28:10,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-11-19 01:28:10,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 393 transitions. [2024-11-19 01:28:10,247 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.51171875 [2024-11-19 01:28:10,247 INFO L175 Difference]: Start difference. First operand has 118 places, 76 transitions, 882 flow. Second operand 32 states and 393 transitions. [2024-11-19 01:28:10,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 301 transitions, 4066 flow [2024-11-19 01:28:10,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 301 transitions, 3452 flow, removed 299 selfloop flow, removed 13 redundant places. [2024-11-19 01:28:10,315 INFO L231 Difference]: Finished difference. Result has 150 places, 119 transitions, 1713 flow [2024-11-19 01:28:10,316 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=1713, PETRI_PLACES=150, PETRI_TRANSITIONS=119} [2024-11-19 01:28:10,316 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 124 predicate places. [2024-11-19 01:28:10,317 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 119 transitions, 1713 flow [2024-11-19 01:28:10,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.352941176470588) internal successors, (125), 17 states have internal predecessors, (125), 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) [2024-11-19 01:28:10,317 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:10,317 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:10,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 01:28:10,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:28:10,518 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:10,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:10,519 INFO L85 PathProgramCache]: Analyzing trace with hash -983284332, now seen corresponding path program 3 times [2024-11-19 01:28:10,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:10,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663348612] [2024-11-19 01:28:10,519 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 01:28:10,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:10,530 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-19 01:28:10,530 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:10,646 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:10,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:10,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663348612] [2024-11-19 01:28:10,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663348612] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:28:10,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481863224] [2024-11-19 01:28:10,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 01:28:10,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:28:10,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:28:10,649 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:28:10,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 01:28:10,709 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-19 01:28:10,709 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:10,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 01:28:10,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:28:10,771 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:10,771 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:28:10,937 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:10,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481863224] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:28:10,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:28:10,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-11-19 01:28:10,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626193289] [2024-11-19 01:28:10,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:28:10,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 01:28:10,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:10,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 01:28:10,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-11-19 01:28:10,976 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:10,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 119 transitions, 1713 flow. Second operand has 18 states, 18 states have (on average 7.277777777777778) internal successors, (131), 18 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:28:10,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:10,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:10,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:12,375 INFO L124 PetriNetUnfolderBase]: 1822/3429 cut-off events. [2024-11-19 01:28:12,375 INFO L125 PetriNetUnfolderBase]: For 164399/164405 co-relation queries the response was YES. [2024-11-19 01:28:12,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22480 conditions, 3429 events. 1822/3429 cut-off events. For 164399/164405 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 19239 event pairs, 58 based on Foata normal form. 123/3551 useless extension candidates. Maximal degree in co-relation 22408. Up to 657 conditions per place. [2024-11-19 01:28:12,410 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 124 selfloop transitions, 121 changer transitions 115/363 dead transitions. [2024-11-19 01:28:12,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 363 transitions, 6090 flow [2024-11-19 01:28:12,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-19 01:28:12,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2024-11-19 01:28:12,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 443 transitions. [2024-11-19 01:28:12,413 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5127314814814815 [2024-11-19 01:28:12,413 INFO L175 Difference]: Start difference. First operand has 150 places, 119 transitions, 1713 flow. Second operand 36 states and 443 transitions. [2024-11-19 01:28:12,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 363 transitions, 6090 flow [2024-11-19 01:28:12,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 363 transitions, 5182 flow, removed 440 selfloop flow, removed 16 redundant places. [2024-11-19 01:28:12,635 INFO L231 Difference]: Finished difference. Result has 183 places, 154 transitions, 2571 flow [2024-11-19 01:28:12,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1355, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=2571, PETRI_PLACES=183, PETRI_TRANSITIONS=154} [2024-11-19 01:28:12,636 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 157 predicate places. [2024-11-19 01:28:12,636 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 154 transitions, 2571 flow [2024-11-19 01:28:12,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.277777777777778) internal successors, (131), 18 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:28:12,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:12,637 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:12,655 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 01:28:12,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:28:12,838 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:12,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:12,838 INFO L85 PathProgramCache]: Analyzing trace with hash 2083707491, now seen corresponding path program 4 times [2024-11-19 01:28:12,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:12,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051275840] [2024-11-19 01:28:12,838 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 01:28:12,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:12,853 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 01:28:12,853 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:13,028 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:13,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:13,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051275840] [2024-11-19 01:28:13,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051275840] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:28:13,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955273431] [2024-11-19 01:28:13,028 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 01:28:13,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:28:13,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:28:13,030 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:28:13,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 01:28:13,090 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 01:28:13,090 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:13,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-19 01:28:13,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:28:13,166 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:13,166 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:28:13,412 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:28:13,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955273431] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:28:13,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:28:13,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2024-11-19 01:28:13,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270944159] [2024-11-19 01:28:13,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:28:13,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-19 01:28:13,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:13,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-19 01:28:13,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2024-11-19 01:28:13,458 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:13,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 154 transitions, 2571 flow. Second operand has 26 states, 26 states have (on average 7.038461538461538) internal successors, (183), 26 states have internal predecessors, (183), 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) [2024-11-19 01:28:13,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:13,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:13,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:15,372 INFO L124 PetriNetUnfolderBase]: 2632/4896 cut-off events. [2024-11-19 01:28:15,372 INFO L125 PetriNetUnfolderBase]: For 356048/356054 co-relation queries the response was YES. [2024-11-19 01:28:15,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38206 conditions, 4896 events. 2632/4896 cut-off events. For 356048/356054 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 26543 event pairs, 89 based on Foata normal form. 105/4998 useless extension candidates. Maximal degree in co-relation 38120. Up to 975 conditions per place. [2024-11-19 01:28:15,488 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 164 selfloop transitions, 176 changer transitions 146/489 dead transitions. [2024-11-19 01:28:15,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 489 transitions, 10254 flow [2024-11-19 01:28:15,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-19 01:28:15,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2024-11-19 01:28:15,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 602 transitions. [2024-11-19 01:28:15,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5119047619047619 [2024-11-19 01:28:15,491 INFO L175 Difference]: Start difference. First operand has 183 places, 154 transitions, 2571 flow. Second operand 49 states and 602 transitions. [2024-11-19 01:28:15,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 489 transitions, 10254 flow [2024-11-19 01:28:15,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 489 transitions, 8546 flow, removed 824 selfloop flow, removed 20 redundant places. [2024-11-19 01:28:15,849 INFO L231 Difference]: Finished difference. Result has 233 places, 215 transitions, 4157 flow [2024-11-19 01:28:15,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2001, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=4157, PETRI_PLACES=233, PETRI_TRANSITIONS=215} [2024-11-19 01:28:15,850 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 207 predicate places. [2024-11-19 01:28:15,850 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 215 transitions, 4157 flow [2024-11-19 01:28:15,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.038461538461538) internal successors, (183), 26 states have internal predecessors, (183), 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) [2024-11-19 01:28:15,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:15,850 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:15,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 01:28:16,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-19 01:28:16,051 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:16,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:16,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1465053042, now seen corresponding path program 5 times [2024-11-19 01:28:16,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:16,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496495714] [2024-11-19 01:28:16,052 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 01:28:16,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:16,067 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 01:28:16,067 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:16,492 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:16,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:16,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496495714] [2024-11-19 01:28:16,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496495714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:28:16,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740803097] [2024-11-19 01:28:16,492 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 01:28:16,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:28:16,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:28:16,494 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:28:16,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 01:28:16,554 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 01:28:16,554 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:16,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-19 01:28:16,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:28:16,726 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:16,726 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:28:17,167 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:17,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740803097] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:28:17,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:28:17,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 40 [2024-11-19 01:28:17,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296924471] [2024-11-19 01:28:17,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:28:17,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-19 01:28:17,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:17,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-19 01:28:17,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=391, Invalid=1249, Unknown=0, NotChecked=0, Total=1640 [2024-11-19 01:28:17,196 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:17,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 215 transitions, 4157 flow. Second operand has 41 states, 41 states have (on average 7.121951219512195) internal successors, (292), 41 states have internal predecessors, (292), 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) [2024-11-19 01:28:17,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:17,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:17,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:18,758 INFO L124 PetriNetUnfolderBase]: 2704/5162 cut-off events. [2024-11-19 01:28:18,758 INFO L125 PetriNetUnfolderBase]: For 548905/548911 co-relation queries the response was YES. [2024-11-19 01:28:18,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43935 conditions, 5162 events. 2704/5162 cut-off events. For 548905/548911 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 28994 event pairs, 1013 based on Foata normal form. 69/5230 useless extension candidates. Maximal degree in co-relation 43827. Up to 3618 conditions per place. [2024-11-19 01:28:18,816 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 261 selfloop transitions, 45 changer transitions 95/404 dead transitions. [2024-11-19 01:28:18,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 404 transitions, 9623 flow [2024-11-19 01:28:18,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-19 01:28:18,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-11-19 01:28:18,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 385 transitions. [2024-11-19 01:28:18,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4861111111111111 [2024-11-19 01:28:18,821 INFO L175 Difference]: Start difference. First operand has 233 places, 215 transitions, 4157 flow. Second operand 33 states and 385 transitions. [2024-11-19 01:28:18,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 404 transitions, 9623 flow [2024-11-19 01:28:19,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 404 transitions, 7126 flow, removed 1227 selfloop flow, removed 17 redundant places. [2024-11-19 01:28:19,601 INFO L231 Difference]: Finished difference. Result has 252 places, 231 transitions, 3701 flow [2024-11-19 01:28:19,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3046, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=3701, PETRI_PLACES=252, PETRI_TRANSITIONS=231} [2024-11-19 01:28:19,602 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 226 predicate places. [2024-11-19 01:28:19,602 INFO L471 AbstractCegarLoop]: Abstraction has has 252 places, 231 transitions, 3701 flow [2024-11-19 01:28:19,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 7.121951219512195) internal successors, (292), 41 states have internal predecessors, (292), 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) [2024-11-19 01:28:19,602 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:19,603 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:19,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 01:28:19,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:28:19,803 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:19,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:19,804 INFO L85 PathProgramCache]: Analyzing trace with hash 883715938, now seen corresponding path program 6 times [2024-11-19 01:28:19,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:19,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704083274] [2024-11-19 01:28:19,804 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 01:28:19,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:19,821 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2024-11-19 01:28:19,822 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:20,190 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:20,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:20,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704083274] [2024-11-19 01:28:20,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704083274] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:28:20,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111272400] [2024-11-19 01:28:20,191 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 01:28:20,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:28:20,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:28:20,195 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:28:20,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 01:28:20,264 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2024-11-19 01:28:20,264 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:20,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-19 01:28:20,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:28:20,441 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:20,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:28:20,981 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:20,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111272400] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:28:20,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:28:20,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 40 [2024-11-19 01:28:20,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706924868] [2024-11-19 01:28:20,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:28:20,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-19 01:28:20,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:20,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-19 01:28:20,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=1305, Unknown=0, NotChecked=0, Total=1640 [2024-11-19 01:28:21,053 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:21,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 231 transitions, 3701 flow. Second operand has 41 states, 41 states have (on average 7.146341463414634) internal successors, (293), 41 states have internal predecessors, (293), 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) [2024-11-19 01:28:21,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:21,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:21,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:23,446 INFO L124 PetriNetUnfolderBase]: 3208/6315 cut-off events. [2024-11-19 01:28:23,446 INFO L125 PetriNetUnfolderBase]: For 534394/534400 co-relation queries the response was YES. [2024-11-19 01:28:23,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47945 conditions, 6315 events. 3208/6315 cut-off events. For 534394/534400 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 37943 event pairs, 596 based on Foata normal form. 69/6383 useless extension candidates. Maximal degree in co-relation 47832. Up to 2398 conditions per place. [2024-11-19 01:28:23,503 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 265 selfloop transitions, 165 changer transitions 135/568 dead transitions. [2024-11-19 01:28:23,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 568 transitions, 10808 flow [2024-11-19 01:28:23,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-19 01:28:23,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2024-11-19 01:28:23,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 614 transitions. [2024-11-19 01:28:23,509 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4827044025157233 [2024-11-19 01:28:23,509 INFO L175 Difference]: Start difference. First operand has 252 places, 231 transitions, 3701 flow. Second operand 53 states and 614 transitions. [2024-11-19 01:28:23,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 568 transitions, 10808 flow [2024-11-19 01:28:24,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 568 transitions, 10049 flow, removed 354 selfloop flow, removed 21 redundant places. [2024-11-19 01:28:24,483 INFO L231 Difference]: Finished difference. Result has 295 places, 287 transitions, 4983 flow [2024-11-19 01:28:24,484 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3284, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=53, PETRI_FLOW=4983, PETRI_PLACES=295, PETRI_TRANSITIONS=287} [2024-11-19 01:28:24,484 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 269 predicate places. [2024-11-19 01:28:24,484 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 287 transitions, 4983 flow [2024-11-19 01:28:24,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 7.146341463414634) internal successors, (293), 41 states have internal predecessors, (293), 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) [2024-11-19 01:28:24,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:24,485 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:24,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-19 01:28:24,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:28:24,689 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:24,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:24,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1701672936, now seen corresponding path program 7 times [2024-11-19 01:28:24,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:24,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458445654] [2024-11-19 01:28:24,689 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 01:28:24,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:28:25,100 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:25,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:25,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458445654] [2024-11-19 01:28:25,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458445654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:28:25,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693756492] [2024-11-19 01:28:25,101 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 01:28:25,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:28:25,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:28:25,103 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:28:25,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 01:28:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:28:25,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-19 01:28:25,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:28:25,326 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:25,327 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:28:25,867 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:25,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693756492] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:28:25,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:28:25,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 41 [2024-11-19 01:28:25,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957609572] [2024-11-19 01:28:25,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:28:25,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-19 01:28:25,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:25,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-19 01:28:25,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=1446, Unknown=0, NotChecked=0, Total=1722 [2024-11-19 01:28:25,889 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:25,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 287 transitions, 4983 flow. Second operand has 42 states, 42 states have (on average 7.142857142857143) internal successors, (300), 42 states have internal predecessors, (300), 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) [2024-11-19 01:28:25,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:25,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:25,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:29,408 INFO L124 PetriNetUnfolderBase]: 4099/8332 cut-off events. [2024-11-19 01:28:29,409 INFO L125 PetriNetUnfolderBase]: For 905406/905412 co-relation queries the response was YES. [2024-11-19 01:28:29,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70190 conditions, 8332 events. 4099/8332 cut-off events. For 905406/905412 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 54577 event pairs, 288 based on Foata normal form. 87/8418 useless extension candidates. Maximal degree in co-relation 70064. Up to 1947 conditions per place. [2024-11-19 01:28:29,521 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 239 selfloop transitions, 309 changer transitions 157/708 dead transitions. [2024-11-19 01:28:29,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 708 transitions, 15141 flow [2024-11-19 01:28:29,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-19 01:28:29,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2024-11-19 01:28:29,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 694 transitions. [2024-11-19 01:28:29,524 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4901129943502825 [2024-11-19 01:28:29,524 INFO L175 Difference]: Start difference. First operand has 295 places, 287 transitions, 4983 flow. Second operand 59 states and 694 transitions. [2024-11-19 01:28:29,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 708 transitions, 15141 flow [2024-11-19 01:28:31,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 708 transitions, 13664 flow, removed 640 selfloop flow, removed 29 redundant places. [2024-11-19 01:28:31,529 INFO L231 Difference]: Finished difference. Result has 340 places, 384 transitions, 7386 flow [2024-11-19 01:28:31,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4222, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=226, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=7386, PETRI_PLACES=340, PETRI_TRANSITIONS=384} [2024-11-19 01:28:31,530 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 314 predicate places. [2024-11-19 01:28:31,530 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 384 transitions, 7386 flow [2024-11-19 01:28:31,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.142857142857143) internal successors, (300), 42 states have internal predecessors, (300), 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) [2024-11-19 01:28:31,531 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:31,531 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:31,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-19 01:28:31,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-19 01:28:31,732 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:31,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:31,733 INFO L85 PathProgramCache]: Analyzing trace with hash -861598898, now seen corresponding path program 8 times [2024-11-19 01:28:31,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:31,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117653211] [2024-11-19 01:28:31,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:28:31,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:31,752 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 01:28:31,752 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:32,126 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:32,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:32,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117653211] [2024-11-19 01:28:32,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117653211] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:28:32,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569567691] [2024-11-19 01:28:32,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:28:32,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:28:32,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:28:32,128 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:28:32,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 01:28:32,188 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 01:28:32,189 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:32,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-19 01:28:32,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:28:32,312 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:32,312 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:28:32,642 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:32,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569567691] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:28:32,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:28:32,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 40 [2024-11-19 01:28:32,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047792475] [2024-11-19 01:28:32,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:28:32,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-19 01:28:32,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:32,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-19 01:28:32,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=1383, Unknown=0, NotChecked=0, Total=1640 [2024-11-19 01:28:32,705 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:32,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 384 transitions, 7386 flow. Second operand has 41 states, 41 states have (on average 7.146341463414634) internal successors, (293), 41 states have internal predecessors, (293), 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) [2024-11-19 01:28:32,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:32,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:32,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:36,604 INFO L124 PetriNetUnfolderBase]: 5143/10444 cut-off events. [2024-11-19 01:28:36,605 INFO L125 PetriNetUnfolderBase]: For 1551652/1551658 co-relation queries the response was YES. [2024-11-19 01:28:36,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97699 conditions, 10444 events. 5143/10444 cut-off events. For 1551652/1551658 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 72210 event pairs, 150 based on Foata normal form. 87/10530 useless extension candidates. Maximal degree in co-relation 97556. Up to 2499 conditions per place. [2024-11-19 01:28:36,705 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 222 selfloop transitions, 422 changer transitions 157/804 dead transitions. [2024-11-19 01:28:36,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 804 transitions, 18543 flow [2024-11-19 01:28:36,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-19 01:28:36,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2024-11-19 01:28:36,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 704 transitions. [2024-11-19 01:28:36,707 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4971751412429379 [2024-11-19 01:28:36,707 INFO L175 Difference]: Start difference. First operand has 340 places, 384 transitions, 7386 flow. Second operand 59 states and 704 transitions. [2024-11-19 01:28:36,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 804 transitions, 18543 flow [2024-11-19 01:28:40,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 804 transitions, 15884 flow, removed 1181 selfloop flow, removed 31 redundant places. [2024-11-19 01:28:40,150 INFO L231 Difference]: Finished difference. Result has 384 places, 480 transitions, 9434 flow [2024-11-19 01:28:40,150 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=5931, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=341, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=9434, PETRI_PLACES=384, PETRI_TRANSITIONS=480} [2024-11-19 01:28:40,151 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 358 predicate places. [2024-11-19 01:28:40,151 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 480 transitions, 9434 flow [2024-11-19 01:28:40,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 7.146341463414634) internal successors, (293), 41 states have internal predecessors, (293), 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) [2024-11-19 01:28:40,151 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:40,151 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:40,167 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 01:28:40,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-19 01:28:40,352 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:40,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:40,353 INFO L85 PathProgramCache]: Analyzing trace with hash 803351984, now seen corresponding path program 9 times [2024-11-19 01:28:40,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:40,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092848528] [2024-11-19 01:28:40,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 01:28:40,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:40,378 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-19 01:28:40,378 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:40,766 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:40,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:40,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092848528] [2024-11-19 01:28:40,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092848528] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:28:40,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882479277] [2024-11-19 01:28:40,766 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 01:28:40,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:28:40,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:28:40,768 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:28:40,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 01:28:40,829 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-19 01:28:40,829 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:40,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-19 01:28:40,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:28:40,935 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:40,935 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:28:41,273 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:41,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882479277] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:28:41,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:28:41,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 41 [2024-11-19 01:28:41,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799591880] [2024-11-19 01:28:41,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:28:41,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-19 01:28:41,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:41,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-19 01:28:41,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=1404, Unknown=0, NotChecked=0, Total=1722 [2024-11-19 01:28:41,353 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:41,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 480 transitions, 9434 flow. Second operand has 42 states, 42 states have (on average 7.142857142857143) internal successors, (300), 42 states have internal predecessors, (300), 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) [2024-11-19 01:28:41,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:41,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:41,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:45,910 INFO L124 PetriNetUnfolderBase]: 5917/11880 cut-off events. [2024-11-19 01:28:45,910 INFO L125 PetriNetUnfolderBase]: For 2030900/2030906 co-relation queries the response was YES. [2024-11-19 01:28:46,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117443 conditions, 11880 events. 5917/11880 cut-off events. For 2030900/2030906 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 83660 event pairs, 66 based on Foata normal form. 96/11975 useless extension candidates. Maximal degree in co-relation 117282. Up to 2811 conditions per place. [2024-11-19 01:28:46,056 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 216 selfloop transitions, 494 changer transitions 162/875 dead transitions. [2024-11-19 01:28:46,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 875 transitions, 21133 flow [2024-11-19 01:28:46,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-19 01:28:46,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2024-11-19 01:28:46,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 727 transitions. [2024-11-19 01:28:46,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5048611111111111 [2024-11-19 01:28:46,058 INFO L175 Difference]: Start difference. First operand has 384 places, 480 transitions, 9434 flow. Second operand 60 states and 727 transitions. [2024-11-19 01:28:46,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 875 transitions, 21133 flow [2024-11-19 01:28:50,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 875 transitions, 18581 flow, removed 1090 selfloop flow, removed 34 redundant places. [2024-11-19 01:28:50,950 INFO L231 Difference]: Finished difference. Result has 423 places, 539 transitions, 11008 flow [2024-11-19 01:28:50,951 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=7796, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=442, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=60, PETRI_FLOW=11008, PETRI_PLACES=423, PETRI_TRANSITIONS=539} [2024-11-19 01:28:50,951 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 397 predicate places. [2024-11-19 01:28:50,951 INFO L471 AbstractCegarLoop]: Abstraction has has 423 places, 539 transitions, 11008 flow [2024-11-19 01:28:50,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.142857142857143) internal successors, (300), 42 states have internal predecessors, (300), 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) [2024-11-19 01:28:50,952 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:28:50,952 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:28:50,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-19 01:28:51,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-19 01:28:51,153 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:28:51,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:28:51,153 INFO L85 PathProgramCache]: Analyzing trace with hash 219903135, now seen corresponding path program 10 times [2024-11-19 01:28:51,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:28:51,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901012469] [2024-11-19 01:28:51,153 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 01:28:51,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:28:51,167 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 01:28:51,168 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:51,515 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:51,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:28:51,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901012469] [2024-11-19 01:28:51,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901012469] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:28:51,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946191869] [2024-11-19 01:28:51,515 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 01:28:51,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:28:51,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:28:51,516 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:28:51,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 01:28:51,569 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 01:28:51,569 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:28:51,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-19 01:28:51,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:28:51,641 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:51,642 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:28:51,986 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:28:51,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946191869] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:28:51,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:28:51,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 42 [2024-11-19 01:28:51,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604151512] [2024-11-19 01:28:51,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:28:51,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-19 01:28:51,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:28:51,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-19 01:28:51,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=394, Invalid=1412, Unknown=0, NotChecked=0, Total=1806 [2024-11-19 01:28:52,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:28:52,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 539 transitions, 11008 flow. Second operand has 43 states, 43 states have (on average 7.116279069767442) internal successors, (306), 43 states have internal predecessors, (306), 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) [2024-11-19 01:28:52,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:28:52,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:28:52,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:28:56,461 INFO L124 PetriNetUnfolderBase]: 6052/12223 cut-off events. [2024-11-19 01:28:56,461 INFO L125 PetriNetUnfolderBase]: For 2520122/2520128 co-relation queries the response was YES. [2024-11-19 01:28:56,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127217 conditions, 12223 events. 6052/12223 cut-off events. For 2520122/2520128 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 86731 event pairs, 203 based on Foata normal form. 33/12253 useless extension candidates. Maximal degree in co-relation 127042. Up to 2865 conditions per place. [2024-11-19 01:28:56,621 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 224 selfloop transitions, 479 changer transitions 87/793 dead transitions. [2024-11-19 01:28:56,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 793 transitions, 19196 flow [2024-11-19 01:28:56,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-19 01:28:56,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2024-11-19 01:28:56,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 524 transitions. [2024-11-19 01:28:56,624 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5077519379844961 [2024-11-19 01:28:56,624 INFO L175 Difference]: Start difference. First operand has 423 places, 539 transitions, 11008 flow. Second operand 43 states and 524 transitions. [2024-11-19 01:28:56,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 793 transitions, 19196 flow [2024-11-19 01:29:02,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 793 transitions, 15939 flow, removed 1325 selfloop flow, removed 42 redundant places. [2024-11-19 01:29:02,847 INFO L231 Difference]: Finished difference. Result has 420 places, 557 transitions, 10903 flow [2024-11-19 01:29:02,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=9077, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=461, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=10903, PETRI_PLACES=420, PETRI_TRANSITIONS=557} [2024-11-19 01:29:02,848 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 394 predicate places. [2024-11-19 01:29:02,848 INFO L471 AbstractCegarLoop]: Abstraction has has 420 places, 557 transitions, 10903 flow [2024-11-19 01:29:02,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 7.116279069767442) internal successors, (306), 43 states have internal predecessors, (306), 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) [2024-11-19 01:29:02,848 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:29:02,848 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:29:02,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-19 01:29:03,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 01:29:03,049 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:29:03,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:29:03,050 INFO L85 PathProgramCache]: Analyzing trace with hash -716409703, now seen corresponding path program 11 times [2024-11-19 01:29:03,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:29:03,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460402677] [2024-11-19 01:29:03,050 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 01:29:03,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:29:03,069 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 01:29:03,069 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:29:03,408 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:29:03,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:29:03,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460402677] [2024-11-19 01:29:03,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460402677] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:29:03,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690183310] [2024-11-19 01:29:03,409 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 01:29:03,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:29:03,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:29:03,410 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:29:03,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 01:29:03,466 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-19 01:29:03,466 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:29:03,467 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-19 01:29:03,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:29:03,543 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:29:03,544 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:29:03,874 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:29:03,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690183310] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:29:03,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:29:03,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 43 [2024-11-19 01:29:03,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601294312] [2024-11-19 01:29:03,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:29:03,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-19 01:29:03,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:29:03,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-19 01:29:03,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=1495, Unknown=0, NotChecked=0, Total=1892 [2024-11-19 01:29:03,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-19 01:29:03,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 557 transitions, 10903 flow. Second operand has 44 states, 44 states have (on average 7.113636363636363) internal successors, (313), 44 states have internal predecessors, (313), 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) [2024-11-19 01:29:03,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:29:03,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-19 01:29:03,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:29:08,177 INFO L124 PetriNetUnfolderBase]: 6025/12180 cut-off events. [2024-11-19 01:29:08,177 INFO L125 PetriNetUnfolderBase]: For 1979494/1979500 co-relation queries the response was YES. [2024-11-19 01:29:08,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115380 conditions, 12180 events. 6025/12180 cut-off events. For 1979494/1979500 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 86392 event pairs, 152 based on Foata normal form. 51/12230 useless extension candidates. Maximal degree in co-relation 115207. Up to 2841 conditions per place. [2024-11-19 01:29:08,391 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 210 selfloop transitions, 492 changer transitions 101/806 dead transitions. [2024-11-19 01:29:08,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 806 transitions, 17877 flow [2024-11-19 01:29:08,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-19 01:29:08,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-11-19 01:29:08,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 546 transitions. [2024-11-19 01:29:08,393 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5055555555555555 [2024-11-19 01:29:08,393 INFO L175 Difference]: Start difference. First operand has 420 places, 557 transitions, 10903 flow. Second operand 45 states and 546 transitions. [2024-11-19 01:29:08,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 806 transitions, 17877 flow [2024-11-19 01:29:13,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 806 transitions, 16260 flow, removed 653 selfloop flow, removed 24 redundant places. [2024-11-19 01:29:13,367 INFO L231 Difference]: Finished difference. Result has 443 places, 560 transitions, 11398 flow [2024-11-19 01:29:13,368 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=10070, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=489, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=11398, PETRI_PLACES=443, PETRI_TRANSITIONS=560} [2024-11-19 01:29:13,368 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 417 predicate places. [2024-11-19 01:29:13,369 INFO L471 AbstractCegarLoop]: Abstraction has has 443 places, 560 transitions, 11398 flow [2024-11-19 01:29:13,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 7.113636363636363) internal successors, (313), 44 states have internal predecessors, (313), 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) [2024-11-19 01:29:13,369 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:29:13,369 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:29:13,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-19 01:29:13,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:29:13,574 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:29:13,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:29:13,574 INFO L85 PathProgramCache]: Analyzing trace with hash -198736790, now seen corresponding path program 12 times [2024-11-19 01:29:13,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:29:13,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062395597] [2024-11-19 01:29:13,574 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 01:29:13,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:29:13,600 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2024-11-19 01:29:13,600 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 01:29:13,600 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 01:29:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 01:29:13,642 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 01:29:13,643 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 01:29:13,644 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-19 01:29:13,645 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-11-19 01:29:13,646 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-19 01:29:13,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 01:29:13,646 INFO L407 BasicCegarLoop]: Path program histogram: [12, 3, 2, 1, 1, 1] [2024-11-19 01:29:13,747 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 01:29:13,747 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 01:29:13,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:29:13 BasicIcfg [2024-11-19 01:29:13,753 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 01:29:13,753 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 01:29:13,754 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 01:29:13,754 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 01:29:13,754 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:28:02" (3/4) ... [2024-11-19 01:29:13,755 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-19 01:29:13,851 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 01:29:13,851 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 01:29:13,852 INFO L158 Benchmark]: Toolchain (without parser) took 72280.79ms. Allocated memory was 178.3MB in the beginning and 10.7GB in the end (delta: 10.6GB). Free memory was 107.0MB in the beginning and 8.6GB in the end (delta: -8.5GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2024-11-19 01:29:13,852 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory was 84.7MB in the beginning and 84.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 01:29:13,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 553.22ms. Allocated memory is still 178.3MB. Free memory was 106.8MB in the beginning and 140.9MB in the end (delta: -34.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-19 01:29:13,854 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.06ms. Allocated memory is still 178.3MB. Free memory was 140.9MB in the beginning and 139.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 01:29:13,855 INFO L158 Benchmark]: Boogie Preprocessor took 52.89ms. Allocated memory is still 178.3MB. Free memory was 139.5MB in the beginning and 137.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 01:29:13,855 INFO L158 Benchmark]: RCFGBuilder took 424.22ms. Allocated memory is still 178.3MB. Free memory was 137.4MB in the beginning and 119.3MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-19 01:29:13,855 INFO L158 Benchmark]: TraceAbstraction took 71096.83ms. Allocated memory was 178.3MB in the beginning and 10.7GB in the end (delta: 10.6GB). Free memory was 118.7MB in the beginning and 8.6GB in the end (delta: -8.5GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2024-11-19 01:29:13,855 INFO L158 Benchmark]: Witness Printer took 97.68ms. Allocated memory is still 10.7GB. Free memory was 8.6GB in the beginning and 8.6GB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-19 01:29:13,857 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory was 84.7MB in the beginning and 84.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 553.22ms. Allocated memory is still 178.3MB. Free memory was 106.8MB in the beginning and 140.9MB in the end (delta: -34.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.06ms. Allocated memory is still 178.3MB. Free memory was 140.9MB in the beginning and 139.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.89ms. Allocated memory is still 178.3MB. Free memory was 139.5MB in the beginning and 137.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 424.22ms. Allocated memory is still 178.3MB. Free memory was 137.4MB in the beginning and 119.3MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 71096.83ms. Allocated memory was 178.3MB in the beginning and 10.7GB in the end (delta: 10.6GB). Free memory was 118.7MB in the beginning and 8.6GB in the end (delta: -8.5GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. * Witness Printer took 97.68ms. Allocated memory is still 10.7GB. Free memory was 8.6GB in the beginning and 8.6GB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L694] 0 int i = 3, j = 6; [L712] 0 pthread_t id1, id2; [L713] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, argc=51, i=3, id1=-2, j=6] [L696] 1 int k = 0; VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=6, k=0] [L714] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, arg={0:0}, argc=51, i=3, id1=-2, id2=-1, j=6, k=0] [L704] 2 int k = 0; VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0, k=0] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0, k=0] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0, k=0] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=0] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=0, k=1] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=1] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=2] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=1, k=2] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=2] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=3] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=3] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=2, k=3] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=2, k=3] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=3] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=3] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=3, k=4] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=4] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=4] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=5] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=5] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=4, k=5] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=5] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=5] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=5] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=6] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=6] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=6] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=18, k=5, k=6] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=18, k=6, k=6] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=6] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=7] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=7] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=7] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=20, k=6, k=7] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=20, k=7, k=7] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=7] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=7] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=8] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=22, k=7, k=8] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=22, k=7, k=8] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=22, k=8, k=8] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=8, k=8] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=8, k=9] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=8, k=9] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=8, k=9] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=9, k=9] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=9, k=9] [L716] 0 int condI = i >= (2*10 +6); VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, arg={0:0}, arg={0:0}, argc=51, condI=0, i=23, id1=-2, id2=-1, j=24, k=9, k=9] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=9, k=9] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=9, k=9] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=25, j=26, k=9, k=9] [L719] 0 int condJ = j >= (2*10 +6); VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, arg={0:0}, arg={0:0}, argc=51, condI=0, condJ=1, i=25, id1=-2, id2=-1, j=26, k=9, k=9] [L721] COND TRUE 0 condI || condJ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, arg={0:0}, arg={0:0}, argc=51, condI=0, condJ=1, i=25, id1=-2, id2=-1, j=26, k=9, k=9] [L722] 0 reach_error() VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, arg={0:0}, arg={0:0}, argc=51, condI=0, condJ=1, i=25, id1=-2, id2=-1, j=26, k=9, k=9] - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 34 locations, 3 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: 70.9s, OverallIterations: 20, TraceHistogramMax: 10, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 57.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7909 SdHoareTripleChecker+Valid, 6.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7889 mSDsluCounter, 518 SdHoareTripleChecker+Invalid, 4.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 509 mSDsCounter, 434 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9273 IncrementalHoareTripleChecker+Invalid, 9707 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 434 mSolverCounterUnsat, 9 mSDtfsCounter, 9273 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1852 GetRequests, 981 SyntacticMatches, 0 SemanticMatches, 871 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18140 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11398occurred in iteration=19, InterpolantAutomatonStates: 576, 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, 9.4s InterpolantComputationTime, 1323 NumberOfCodeBlocks, 1323 NumberOfCodeBlocksAsserted, 136 NumberOfCheckSat, 1793 ConstructedInterpolants, 0 QuantifiedInterpolants, 8042 SizeOfPredicates, 160 NumberOfNonLiveVariables, 1678 ConjunctsInSsa, 220 ConjunctsInUnsatCore, 43 InterpolantComputations, 7 PerfectInterpolantSequences, 60/4683 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-19 01:29:13,883 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE