./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 735b3cc8 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.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 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 00:53:20,770 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 00:53:20,823 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-14 00:53:20,828 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 00:53:20,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 00:53:20,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 00:53:20,850 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 00:53:20,851 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 00:53:20,851 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-14 00:53:20,851 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-14 00:53:20,851 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 00:53:20,851 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 00:53:20,851 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 00:53:20,851 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 00:53:20,851 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 00:53:20,851 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 00:53:20,851 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 00:53:20,851 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 00:53:20,851 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 00:53:20,851 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 00:53:20,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 00:53:20,852 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 00:53:20,852 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 00:53:20,852 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 00:53:20,852 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 00:53:20,852 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 00:53:20,852 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 00:53:20,852 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 00:53:20,852 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 00:53:20,852 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 00:53:20,852 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-14 00:53:20,852 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 00:53:20,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 00:53:20,852 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 00:53:20,852 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 00:53:20,852 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 00:53:20,852 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 00:53:20,852 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 00:53:20,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 00:53:20,853 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 00:53:20,853 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 00:53:20,853 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 00:53:20,853 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 00:53:20,853 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 [2025-03-14 00:53:21,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 00:53:21,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 00:53:21,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 00:53:21,092 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 00:53:21,093 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 00:53:21,094 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-03-14 00:53:22,297 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/313a84232/0f0ac7db577a4928a36a11786c5b1903/FLAG2e2be4f68 [2025-03-14 00:53:22,582 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 00:53:22,583 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-03-14 00:53:22,599 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/313a84232/0f0ac7db577a4928a36a11786c5b1903/FLAG2e2be4f68 [2025-03-14 00:53:22,619 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/313a84232/0f0ac7db577a4928a36a11786c5b1903 [2025-03-14 00:53:22,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 00:53:22,623 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 00:53:22,625 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 00:53:22,625 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 00:53:22,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 00:53:22,629 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 12:53:22" (1/1) ... [2025-03-14 00:53:22,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@308b1555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:53:22, skipping insertion in model container [2025-03-14 00:53:22,631 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 12:53:22" (1/1) ... [2025-03-14 00:53:22,662 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 00:53:22,770 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-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2025-03-14 00:53:22,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 00:53:22,866 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 00:53:22,873 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-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2025-03-14 00:53:22,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 00:53:22,932 INFO L204 MainTranslator]: Completed translation [2025-03-14 00:53:22,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:53:22 WrapperNode [2025-03-14 00:53:22,933 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 00:53:22,933 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 00:53:22,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 00:53:22,934 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 00:53:22,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:53:22" (1/1) ... [2025-03-14 00:53:22,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:53:22" (1/1) ... [2025-03-14 00:53:22,957 INFO L138 Inliner]: procedures = 176, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2025-03-14 00:53:22,957 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 00:53:22,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 00:53:22,958 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 00:53:22,958 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 00:53:22,964 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:53:22" (1/1) ... [2025-03-14 00:53:22,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:53:22" (1/1) ... [2025-03-14 00:53:22,966 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:53:22" (1/1) ... [2025-03-14 00:53:22,974 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]. [2025-03-14 00:53:22,974 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:53:22" (1/1) ... [2025-03-14 00:53:22,974 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:53:22" (1/1) ... [2025-03-14 00:53:22,977 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:53:22" (1/1) ... [2025-03-14 00:53:22,978 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:53:22" (1/1) ... [2025-03-14 00:53:22,979 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:53:22" (1/1) ... [2025-03-14 00:53:22,979 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:53:22" (1/1) ... [2025-03-14 00:53:22,980 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 00:53:22,981 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 00:53:22,981 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 00:53:22,981 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 00:53:22,981 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:53:22" (1/1) ... [2025-03-14 00:53:22,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 00:53:22,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 00:53:23,018 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) [2025-03-14 00:53:23,021 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 [2025-03-14 00:53:23,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-14 00:53:23,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 00:53:23,037 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-14 00:53:23,037 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-14 00:53:23,037 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-14 00:53:23,037 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-14 00:53:23,037 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-14 00:53:23,037 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-14 00:53:23,037 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-14 00:53:23,037 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-14 00:53:23,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-14 00:53:23,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-14 00:53:23,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 00:53:23,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 00:53:23,038 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 00:53:23,141 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 00:53:23,144 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 00:53:23,288 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 00:53:23,289 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 00:53:23,289 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 00:53:23,382 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 00:53:23,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:53:23 BoogieIcfgContainer [2025-03-14 00:53:23,383 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 00:53:23,384 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 00:53:23,384 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 00:53:23,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 00:53:23,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 12:53:22" (1/3) ... [2025-03-14 00:53:23,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57efd7ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 12:53:23, skipping insertion in model container [2025-03-14 00:53:23,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:53:22" (2/3) ... [2025-03-14 00:53:23,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57efd7ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 12:53:23, skipping insertion in model container [2025-03-14 00:53:23,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:53:23" (3/3) ... [2025-03-14 00:53:23,392 INFO L128 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-03-14 00:53:23,402 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 00:53:23,403 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 5 procedures, 45 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-14 00:53:23,403 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 00:53:23,443 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 00:53:23,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 45 transitions, 106 flow [2025-03-14 00:53:23,492 INFO L124 PetriNetUnfolderBase]: 1/41 cut-off events. [2025-03-14 00:53:23,498 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 00:53:23,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 41 events. 1/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2025-03-14 00:53:23,504 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 45 transitions, 106 flow [2025-03-14 00:53:23,506 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 38 transitions, 88 flow [2025-03-14 00:53:23,512 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 00:53:23,521 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;@7350919c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 00:53:23,521 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-14 00:53:23,540 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 00:53:23,540 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2025-03-14 00:53:23,540 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 00:53:23,541 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:53:23,543 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:53:23,543 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 00:53:23,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:53:23,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1673529675, now seen corresponding path program 1 times [2025-03-14 00:53:23,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:53:23,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809359853] [2025-03-14 00:53:23,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:53:23,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:53:23,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-14 00:53:23,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-14 00:53:23,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:53:23,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:53:24,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:53:24,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:53:24,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809359853] [2025-03-14 00:53:24,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809359853] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:53:24,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:53:24,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-14 00:53:24,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252931027] [2025-03-14 00:53:24,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:53:24,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-14 00:53:24,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:53:24,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-14 00:53:24,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-14 00:53:24,049 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-03-14 00:53:24,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2025-03-14 00:53:24,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:53:24,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-03-14 00:53:24,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:53:25,788 INFO L124 PetriNetUnfolderBase]: 19981/28439 cut-off events. [2025-03-14 00:53:25,788 INFO L125 PetriNetUnfolderBase]: For 194/194 co-relation queries the response was YES. [2025-03-14 00:53:25,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55773 conditions, 28439 events. 19981/28439 cut-off events. For 194/194 co-relation queries the response was YES. Maximal size of possible extension queue 1042. Compared 177851 event pairs, 2463 based on Foata normal form. 900/29320 useless extension candidates. Maximal degree in co-relation 55761. Up to 15601 conditions per place. [2025-03-14 00:53:26,058 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 65 selfloop transitions, 6 changer transitions 1/78 dead transitions. [2025-03-14 00:53:26,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 78 transitions, 321 flow [2025-03-14 00:53:26,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-14 00:53:26,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-14 00:53:26,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2025-03-14 00:53:26,076 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6555555555555556 [2025-03-14 00:53:26,079 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 88 flow. Second operand 4 states and 118 transitions. [2025-03-14 00:53:26,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 78 transitions, 321 flow [2025-03-14 00:53:26,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 78 transitions, 314 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-14 00:53:26,092 INFO L231 Difference]: Finished difference. Result has 52 places, 42 transitions, 126 flow [2025-03-14 00:53:26,094 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=126, PETRI_PLACES=52, PETRI_TRANSITIONS=42} [2025-03-14 00:53:26,100 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 1 predicate places. [2025-03-14 00:53:26,105 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 42 transitions, 126 flow [2025-03-14 00:53:26,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2025-03-14 00:53:26,105 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:53:26,105 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:53:26,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 00:53:26,105 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 00:53:26,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:53:26,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1047038305, now seen corresponding path program 1 times [2025-03-14 00:53:26,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:53:26,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714163433] [2025-03-14 00:53:26,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:53:26,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:53:26,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-14 00:53:26,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-14 00:53:26,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:53:26,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:53:26,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:53:26,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:53:26,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714163433] [2025-03-14 00:53:26,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714163433] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:53:26,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:53:26,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-14 00:53:26,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769145944] [2025-03-14 00:53:26,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:53:26,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-14 00:53:26,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:53:26,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-14 00:53:26,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-14 00:53:26,316 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-03-14 00:53:26,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2025-03-14 00:53:26,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:53:26,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-03-14 00:53:26,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:53:27,447 INFO L124 PetriNetUnfolderBase]: 13861/19823 cut-off events. [2025-03-14 00:53:27,448 INFO L125 PetriNetUnfolderBase]: For 4064/4064 co-relation queries the response was YES. [2025-03-14 00:53:27,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45025 conditions, 19823 events. 13861/19823 cut-off events. For 4064/4064 co-relation queries the response was YES. Maximal size of possible extension queue 636. Compared 116935 event pairs, 1337 based on Foata normal form. 756/20560 useless extension candidates. Maximal degree in co-relation 45013. Up to 8041 conditions per place. [2025-03-14 00:53:27,548 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 84 selfloop transitions, 10 changer transitions 1/101 dead transitions. [2025-03-14 00:53:27,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 101 transitions, 463 flow [2025-03-14 00:53:27,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-14 00:53:27,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-14 00:53:27,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 152 transitions. [2025-03-14 00:53:27,551 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6755555555555556 [2025-03-14 00:53:27,551 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 126 flow. Second operand 5 states and 152 transitions. [2025-03-14 00:53:27,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 101 transitions, 463 flow [2025-03-14 00:53:27,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 101 transitions, 452 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-14 00:53:27,563 INFO L231 Difference]: Finished difference. Result has 56 places, 46 transitions, 178 flow [2025-03-14 00:53:27,563 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=178, PETRI_PLACES=56, PETRI_TRANSITIONS=46} [2025-03-14 00:53:27,564 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 5 predicate places. [2025-03-14 00:53:27,564 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 46 transitions, 178 flow [2025-03-14 00:53:27,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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) [2025-03-14 00:53:27,564 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:53:27,564 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:53:27,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 00:53:27,565 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 00:53:27,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:53:27,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1643699465, now seen corresponding path program 1 times [2025-03-14 00:53:27,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:53:27,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144439797] [2025-03-14 00:53:27,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:53:27,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:53:27,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-14 00:53:27,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-14 00:53:27,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:53:27,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:53:27,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:53:27,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:53:27,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144439797] [2025-03-14 00:53:27,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144439797] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:53:27,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:53:27,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 00:53:27,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389494058] [2025-03-14 00:53:27,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:53:27,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 00:53:27,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:53:27,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 00:53:27,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-14 00:53:27,731 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-03-14 00:53:27,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 46 transitions, 178 flow. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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) [2025-03-14 00:53:27,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:53:27,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-03-14 00:53:27,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:53:28,390 INFO L124 PetriNetUnfolderBase]: 8597/12179 cut-off events. [2025-03-14 00:53:28,391 INFO L125 PetriNetUnfolderBase]: For 7774/7774 co-relation queries the response was YES. [2025-03-14 00:53:28,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30639 conditions, 12179 events. 8597/12179 cut-off events. For 7774/7774 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 64365 event pairs, 1091 based on Foata normal form. 420/12580 useless extension candidates. Maximal degree in co-relation 30625. Up to 3644 conditions per place. [2025-03-14 00:53:28,453 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 101 selfloop transitions, 14 changer transitions 1/122 dead transitions. [2025-03-14 00:53:28,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 122 transitions, 610 flow [2025-03-14 00:53:28,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 00:53:28,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 00:53:28,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 184 transitions. [2025-03-14 00:53:28,458 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6814814814814815 [2025-03-14 00:53:28,458 INFO L175 Difference]: Start difference. First operand has 56 places, 46 transitions, 178 flow. Second operand 6 states and 184 transitions. [2025-03-14 00:53:28,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 122 transitions, 610 flow [2025-03-14 00:53:28,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 122 transitions, 580 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-03-14 00:53:28,602 INFO L231 Difference]: Finished difference. Result has 59 places, 50 transitions, 228 flow [2025-03-14 00:53:28,603 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=228, PETRI_PLACES=59, PETRI_TRANSITIONS=50} [2025-03-14 00:53:28,604 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 8 predicate places. [2025-03-14 00:53:28,604 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 50 transitions, 228 flow [2025-03-14 00:53:28,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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) [2025-03-14 00:53:28,604 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:53:28,605 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:53:28,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 00:53:28,605 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 00:53:28,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:53:28,606 INFO L85 PathProgramCache]: Analyzing trace with hash -2042133261, now seen corresponding path program 1 times [2025-03-14 00:53:28,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:53:28,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934151838] [2025-03-14 00:53:28,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:53:28,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:53:28,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-14 00:53:28,632 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-14 00:53:28,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:53:28,636 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:53:28,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:53:28,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:53:28,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934151838] [2025-03-14 00:53:28,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934151838] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:53:28,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:53:28,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 00:53:28,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905151720] [2025-03-14 00:53:28,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:53:28,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 00:53:28,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:53:28,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 00:53:28,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-14 00:53:28,903 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-03-14 00:53:28,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 50 transitions, 228 flow. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:53:28,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:53:28,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-03-14 00:53:28,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:53:29,447 INFO L124 PetriNetUnfolderBase]: 6433/8939 cut-off events. [2025-03-14 00:53:29,447 INFO L125 PetriNetUnfolderBase]: For 7834/7834 co-relation queries the response was YES. [2025-03-14 00:53:29,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23640 conditions, 8939 events. 6433/8939 cut-off events. For 7834/7834 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 44527 event pairs, 977 based on Foata normal form. 128/9048 useless extension candidates. Maximal degree in co-relation 23625. Up to 3076 conditions per place. [2025-03-14 00:53:29,491 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 88 selfloop transitions, 18 changer transitions 1/113 dead transitions. [2025-03-14 00:53:29,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 113 transitions, 584 flow [2025-03-14 00:53:29,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-14 00:53:29,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-14 00:53:29,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 186 transitions. [2025-03-14 00:53:29,492 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5904761904761905 [2025-03-14 00:53:29,493 INFO L175 Difference]: Start difference. First operand has 59 places, 50 transitions, 228 flow. Second operand 7 states and 186 transitions. [2025-03-14 00:53:29,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 113 transitions, 584 flow [2025-03-14 00:53:29,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 113 transitions, 538 flow, removed 9 selfloop flow, removed 5 redundant places. [2025-03-14 00:53:29,563 INFO L231 Difference]: Finished difference. Result has 62 places, 50 transitions, 238 flow [2025-03-14 00:53:29,563 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=238, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2025-03-14 00:53:29,563 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 11 predicate places. [2025-03-14 00:53:29,564 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 238 flow [2025-03-14 00:53:29,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:53:29,564 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:53:29,564 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:53:29,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 00:53:29,564 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 00:53:29,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:53:29,566 INFO L85 PathProgramCache]: Analyzing trace with hash -60029462, now seen corresponding path program 1 times [2025-03-14 00:53:29,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:53:29,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868618335] [2025-03-14 00:53:29,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:53:29,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:53:29,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-14 00:53:29,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-14 00:53:29,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:53:29,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:53:29,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:53:29,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:53:29,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868618335] [2025-03-14 00:53:29,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868618335] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:53:29,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:53:29,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 00:53:29,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949890759] [2025-03-14 00:53:29,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:53:29,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-14 00:53:29,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:53:29,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-14 00:53:29,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-14 00:53:29,755 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2025-03-14 00:53:29,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 238 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2025-03-14 00:53:29,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:53:29,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2025-03-14 00:53:29,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:53:30,553 INFO L124 PetriNetUnfolderBase]: 11241/15583 cut-off events. [2025-03-14 00:53:30,553 INFO L125 PetriNetUnfolderBase]: For 13647/13647 co-relation queries the response was YES. [2025-03-14 00:53:30,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41125 conditions, 15583 events. 11241/15583 cut-off events. For 13647/13647 co-relation queries the response was YES. Maximal size of possible extension queue 524. Compared 82527 event pairs, 3672 based on Foata normal form. 16/15580 useless extension candidates. Maximal degree in co-relation 41109. Up to 8546 conditions per place. [2025-03-14 00:53:30,629 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 71 selfloop transitions, 7 changer transitions 17/100 dead transitions. [2025-03-14 00:53:30,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 100 transitions, 660 flow [2025-03-14 00:53:30,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-14 00:53:30,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-14 00:53:30,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 122 transitions. [2025-03-14 00:53:30,630 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5422222222222223 [2025-03-14 00:53:30,630 INFO L175 Difference]: Start difference. First operand has 62 places, 50 transitions, 238 flow. Second operand 5 states and 122 transitions. [2025-03-14 00:53:30,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 100 transitions, 660 flow [2025-03-14 00:53:30,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 100 transitions, 471 flow, removed 34 selfloop flow, removed 10 redundant places. [2025-03-14 00:53:30,804 INFO L231 Difference]: Finished difference. Result has 60 places, 56 transitions, 200 flow [2025-03-14 00:53:30,804 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=200, PETRI_PLACES=60, PETRI_TRANSITIONS=56} [2025-03-14 00:53:30,805 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 9 predicate places. [2025-03-14 00:53:30,805 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 56 transitions, 200 flow [2025-03-14 00:53:30,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2025-03-14 00:53:30,805 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:53:30,805 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:53:30,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-14 00:53:30,806 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 00:53:30,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:53:30,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1230576532, now seen corresponding path program 2 times [2025-03-14 00:53:30,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:53:30,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426554321] [2025-03-14 00:53:30,807 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 00:53:30,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:53:30,817 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 34 statements into 1 equivalence classes. [2025-03-14 00:53:30,827 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-14 00:53:30,828 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 00:53:30,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:53:30,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:53:30,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:53:30,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426554321] [2025-03-14 00:53:30,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426554321] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:53:30,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:53:30,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 00:53:30,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298714836] [2025-03-14 00:53:30,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:53:30,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 00:53:30,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:53:30,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 00:53:30,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-14 00:53:30,979 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2025-03-14 00:53:30,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 200 flow. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 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) [2025-03-14 00:53:30,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:53:30,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2025-03-14 00:53:30,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:53:32,042 INFO L124 PetriNetUnfolderBase]: 19165/26518 cut-off events. [2025-03-14 00:53:32,042 INFO L125 PetriNetUnfolderBase]: For 11596/11617 co-relation queries the response was YES. [2025-03-14 00:53:32,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68191 conditions, 26518 events. 19165/26518 cut-off events. For 11596/11617 co-relation queries the response was YES. Maximal size of possible extension queue 940. Compared 148202 event pairs, 2589 based on Foata normal form. 34/26528 useless extension candidates. Maximal degree in co-relation 68176. Up to 13312 conditions per place. [2025-03-14 00:53:32,149 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 95 selfloop transitions, 11 changer transitions 47/158 dead transitions. [2025-03-14 00:53:32,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 158 transitions, 858 flow [2025-03-14 00:53:32,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-14 00:53:32,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-14 00:53:32,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 175 transitions. [2025-03-14 00:53:32,151 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2025-03-14 00:53:32,151 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 200 flow. Second operand 7 states and 175 transitions. [2025-03-14 00:53:32,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 158 transitions, 858 flow [2025-03-14 00:53:32,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 158 transitions, 816 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-03-14 00:53:32,167 INFO L231 Difference]: Finished difference. Result has 65 places, 63 transitions, 264 flow [2025-03-14 00:53:32,167 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=264, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2025-03-14 00:53:32,168 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 14 predicate places. [2025-03-14 00:53:32,168 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 264 flow [2025-03-14 00:53:32,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 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) [2025-03-14 00:53:32,168 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:53:32,168 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:53:32,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-14 00:53:32,169 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 00:53:32,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:53:32,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1199807542, now seen corresponding path program 3 times [2025-03-14 00:53:32,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:53:32,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837196420] [2025-03-14 00:53:32,169 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 00:53:32,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:53:32,175 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 34 statements into 1 equivalence classes. [2025-03-14 00:53:32,180 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-14 00:53:32,180 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 00:53:32,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:53:32,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:53:32,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:53:32,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837196420] [2025-03-14 00:53:32,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837196420] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:53:32,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:53:32,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-14 00:53:32,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321885795] [2025-03-14 00:53:32,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:53:32,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 00:53:32,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:53:32,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 00:53:32,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-14 00:53:32,292 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2025-03-14 00:53:32,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 264 flow. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 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) [2025-03-14 00:53:32,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:53:32,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2025-03-14 00:53:32,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:53:33,417 INFO L124 PetriNetUnfolderBase]: 20803/28924 cut-off events. [2025-03-14 00:53:33,418 INFO L125 PetriNetUnfolderBase]: For 12376/12376 co-relation queries the response was YES. [2025-03-14 00:53:33,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73724 conditions, 28924 events. 20803/28924 cut-off events. For 12376/12376 co-relation queries the response was YES. Maximal size of possible extension queue 1073. Compared 165883 event pairs, 4012 based on Foata normal form. 48/28971 useless extension candidates. Maximal degree in co-relation 73706. Up to 7400 conditions per place. [2025-03-14 00:53:33,515 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 63 selfloop transitions, 6 changer transitions 150/224 dead transitions. [2025-03-14 00:53:33,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 224 transitions, 1229 flow [2025-03-14 00:53:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-14 00:53:33,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-14 00:53:33,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 271 transitions. [2025-03-14 00:53:33,517 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5018518518518519 [2025-03-14 00:53:33,517 INFO L175 Difference]: Start difference. First operand has 65 places, 63 transitions, 264 flow. Second operand 12 states and 271 transitions. [2025-03-14 00:53:33,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 224 transitions, 1229 flow [2025-03-14 00:53:33,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 224 transitions, 1205 flow, removed 9 selfloop flow, removed 3 redundant places. [2025-03-14 00:53:33,538 INFO L231 Difference]: Finished difference. Result has 80 places, 50 transitions, 210 flow [2025-03-14 00:53:33,538 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=210, PETRI_PLACES=80, PETRI_TRANSITIONS=50} [2025-03-14 00:53:33,538 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 29 predicate places. [2025-03-14 00:53:33,539 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 50 transitions, 210 flow [2025-03-14 00:53:33,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 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) [2025-03-14 00:53:33,539 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:53:33,539 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:53:33,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-14 00:53:33,539 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 00:53:33,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:53:33,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1206497112, now seen corresponding path program 4 times [2025-03-14 00:53:33,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:53:33,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525736880] [2025-03-14 00:53:33,540 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 00:53:33,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:53:33,545 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 34 statements into 2 equivalence classes. [2025-03-14 00:53:33,552 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 34 of 34 statements. [2025-03-14 00:53:33,552 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-14 00:53:33,552 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:53:33,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:53:33,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:53:33,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525736880] [2025-03-14 00:53:33,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525736880] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:53:33,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:53:33,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 00:53:33,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965109179] [2025-03-14 00:53:33,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:53:33,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 00:53:33,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:53:33,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 00:53:33,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-14 00:53:33,652 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2025-03-14 00:53:33,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 50 transitions, 210 flow. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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) [2025-03-14 00:53:33,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:53:33,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2025-03-14 00:53:33,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:53:33,813 INFO L124 PetriNetUnfolderBase]: 1943/2761 cut-off events. [2025-03-14 00:53:33,813 INFO L125 PetriNetUnfolderBase]: For 1575/1576 co-relation queries the response was YES. [2025-03-14 00:53:33,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7075 conditions, 2761 events. 1943/2761 cut-off events. For 1575/1576 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 10695 event pairs, 479 based on Foata normal form. 16/2777 useless extension candidates. Maximal degree in co-relation 7059. Up to 2448 conditions per place. [2025-03-14 00:53:33,820 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 0 selfloop transitions, 0 changer transitions 65/65 dead transitions. [2025-03-14 00:53:33,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 65 transitions, 364 flow [2025-03-14 00:53:33,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 00:53:33,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 00:53:33,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 108 transitions. [2025-03-14 00:53:33,822 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4 [2025-03-14 00:53:33,822 INFO L175 Difference]: Start difference. First operand has 80 places, 50 transitions, 210 flow. Second operand 6 states and 108 transitions. [2025-03-14 00:53:33,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 65 transitions, 364 flow [2025-03-14 00:53:33,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 65 transitions, 316 flow, removed 10 selfloop flow, removed 13 redundant places. [2025-03-14 00:53:33,824 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2025-03-14 00:53:33,825 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2025-03-14 00:53:33,825 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 11 predicate places. [2025-03-14 00:53:33,825 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2025-03-14 00:53:33,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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) [2025-03-14 00:53:33,828 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2025-03-14 00:53:33,828 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2025-03-14 00:53:33,828 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-14 00:53:33,828 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-14 00:53:33,828 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-03-14 00:53:33,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-14 00:53:33,828 INFO L422 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1] [2025-03-14 00:53:33,830 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-14 00:53:33,830 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-14 00:53:33,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.03 12:53:33 BasicIcfg [2025-03-14 00:53:33,834 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-14 00:53:33,834 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-14 00:53:33,834 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-14 00:53:33,834 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-14 00:53:33,835 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:53:23" (3/4) ... [2025-03-14 00:53:33,837 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-14 00:53:33,839 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-14 00:53:33,839 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-14 00:53:33,839 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-14 00:53:33,839 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P3 [2025-03-14 00:53:33,841 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2025-03-14 00:53:33,841 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-03-14 00:53:33,841 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-14 00:53:33,841 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-14 00:53:33,891 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-14 00:53:33,891 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-14 00:53:33,891 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-14 00:53:33,892 INFO L158 Benchmark]: Toolchain (without parser) took 11269.26ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 111.3MB in the beginning and 376.9MB in the end (delta: -265.6MB). Peak memory consumption was 762.0MB. Max. memory is 16.1GB. [2025-03-14 00:53:33,892 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 201.3MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 00:53:33,892 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.43ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 90.7MB in the end (delta: 20.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-14 00:53:33,892 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.07ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 89.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-14 00:53:33,892 INFO L158 Benchmark]: Boogie Preprocessor took 22.26ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 87.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 00:53:33,893 INFO L158 Benchmark]: IcfgBuilder took 402.05ms. Allocated memory is still 142.6MB. Free memory was 87.2MB in the beginning and 64.7MB in the end (delta: 22.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-14 00:53:33,893 INFO L158 Benchmark]: TraceAbstraction took 10449.36ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 64.3MB in the beginning and 381.1MB in the end (delta: -316.8MB). Peak memory consumption was 711.7MB. Max. memory is 16.1GB. [2025-03-14 00:53:33,893 INFO L158 Benchmark]: Witness Printer took 56.79ms. Allocated memory is still 1.2GB. Free memory was 381.1MB in the beginning and 376.9MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 00:53:33,894 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 201.3MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.43ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 90.7MB in the end (delta: 20.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.07ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 89.0MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.26ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 87.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 402.05ms. Allocated memory is still 142.6MB. Free memory was 87.2MB in the beginning and 64.7MB in the end (delta: 22.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 10449.36ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 64.3MB in the beginning and 381.1MB in the end (delta: -316.8MB). Peak memory consumption was 711.7MB. Max. memory is 16.1GB. * Witness Printer took 56.79ms. Allocated memory is still 1.2GB. Free memory was 381.1MB in the beginning and 376.9MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 75 locations, 5 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: 10.4s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 762 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 753 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1351 IncrementalHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 9 mSDtfsCounter, 1351 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=264occurred in iteration=6, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 953 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-14 00:53:33,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE