./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe008_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe008_tso.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 3447fa4cbed8c2dd9f8bb92c4d44acca15639ccfd4d81b58d710cf11090f115c --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:04:08,827 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:04:08,864 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 01:04:08,867 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:04:08,868 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:04:08,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:04:08,898 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:04:08,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:04:08,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:04:08,898 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:04:08,899 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:04:08,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:04:08,899 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:04:08,899 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:04:08,899 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:04:08,899 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:04:08,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:04:08,900 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 01:04:08,900 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:04:08,900 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 01:04:08,900 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:04:08,900 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:04:08,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:04:08,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:04:08,900 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 01:04:08,900 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:04:08,900 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:04:08,900 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:04:08,901 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:04:08,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:04:08,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:04:08,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:04:08,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:04:08,901 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:04:08,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:04:08,901 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:04:08,901 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:04:08,901 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:04:08,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:04:08,902 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:04:08,902 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:04:08,902 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:04:08,902 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:04:08,902 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-jdk21/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 -> 3447fa4cbed8c2dd9f8bb92c4d44acca15639ccfd4d81b58d710cf11090f115c [2025-02-08 01:04:09,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:04:09,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:04:09,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:04:09,131 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:04:09,131 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:04:09,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe008_tso.i [2025-02-08 01:04:10,269 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5964252d4/f1f48c45a7a0428284a1282f9aeb4f15/FLAG5d8200b2f [2025-02-08 01:04:10,598 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:04:10,598 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe008_tso.i [2025-02-08 01:04:10,618 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5964252d4/f1f48c45a7a0428284a1282f9aeb4f15/FLAG5d8200b2f [2025-02-08 01:04:10,644 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5964252d4/f1f48c45a7a0428284a1282f9aeb4f15 [2025-02-08 01:04:10,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:04:10,649 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:04:10,650 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:04:10,650 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:04:10,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:04:10,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:04:10" (1/1) ... [2025-02-08 01:04:10,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38c47e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:04:10, skipping insertion in model container [2025-02-08 01:04:10,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:04:10" (1/1) ... [2025-02-08 01:04:10,707 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:04:10,919 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe008_tso.i[945,958] [2025-02-08 01:04:11,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:04:11,104 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:04:11,111 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe008_tso.i[945,958] [2025-02-08 01:04:11,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:04:11,170 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:04:11,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:04:11 WrapperNode [2025-02-08 01:04:11,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:04:11,172 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:04:11,172 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:04:11,172 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:04:11,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:04:11" (1/1) ... [2025-02-08 01:04:11,184 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:04:11" (1/1) ... [2025-02-08 01:04:11,198 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2025-02-08 01:04:11,198 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:04:11,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:04:11,199 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:04:11,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:04:11,203 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:04:11" (1/1) ... [2025-02-08 01:04:11,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:04:11" (1/1) ... [2025-02-08 01:04:11,205 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:04:11" (1/1) ... [2025-02-08 01:04:11,211 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]. [2025-02-08 01:04:11,211 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:04:11" (1/1) ... [2025-02-08 01:04:11,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:04:11" (1/1) ... [2025-02-08 01:04:11,214 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:04:11" (1/1) ... [2025-02-08 01:04:11,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:04:11" (1/1) ... [2025-02-08 01:04:11,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:04:11" (1/1) ... [2025-02-08 01:04:11,216 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:04:11" (1/1) ... [2025-02-08 01:04:11,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:04:11,217 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:04:11,218 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:04:11,218 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:04:11,218 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:04:11" (1/1) ... [2025-02-08 01:04:11,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:04:11,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:04:11,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:04:11,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:04:11,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 01:04:11,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:04:11,256 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 01:04:11,256 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 01:04:11,257 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 01:04:11,257 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 01:04:11,257 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 01:04:11,257 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 01:04:11,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:04:11,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 01:04:11,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:04:11,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:04:11,258 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 01:04:11,341 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:04:11,342 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:04:11,458 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 01:04:11,458 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:04:11,511 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:04:11,511 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:04:11,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:04:11 BoogieIcfgContainer [2025-02-08 01:04:11,511 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:04:11,513 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:04:11,513 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:04:11,516 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:04:11,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:04:10" (1/3) ... [2025-02-08 01:04:11,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab17b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:04:11, skipping insertion in model container [2025-02-08 01:04:11,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:04:11" (2/3) ... [2025-02-08 01:04:11,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab17b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:04:11, skipping insertion in model container [2025-02-08 01:04:11,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:04:11" (3/3) ... [2025-02-08 01:04:11,518 INFO L128 eAbstractionObserver]: Analyzing ICFG safe008_tso.i [2025-02-08 01:04:11,527 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:04:11,528 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe008_tso.i that has 4 procedures, 38 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:04:11,528 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 01:04:11,572 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 01:04:11,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 88 flow [2025-02-08 01:04:11,621 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2025-02-08 01:04:11,623 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:04:11,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 35 events. 1/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2025-02-08 01:04:11,625 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 38 transitions, 88 flow [2025-02-08 01:04:11,626 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 32 transitions, 73 flow [2025-02-08 01:04:11,631 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:04:11,641 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;@57405125, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:04:11,643 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 01:04:11,655 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 01:04:11,656 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2025-02-08 01:04:11,656 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:04:11,656 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:04:11,657 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:04:11,657 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 1 more)] === [2025-02-08 01:04:11,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:04:11,662 INFO L85 PathProgramCache]: Analyzing trace with hash -101451644, now seen corresponding path program 1 times [2025-02-08 01:04:11,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:04:11,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056882447] [2025-02-08 01:04:11,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:04:11,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:04:11,734 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 01:04:11,760 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 01:04:11,761 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:04:11,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:04:12,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:04:12,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:04:12,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056882447] [2025-02-08 01:04:12,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056882447] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:04:12,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:04:12,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:04:12,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70064654] [2025-02-08 01:04:12,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:04:12,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:04:12,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:04:12,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:04:12,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:04:12,104 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-02-08 01:04:12,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2025-02-08 01:04:12,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:04:12,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-02-08 01:04:12,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:04:13,082 INFO L124 PetriNetUnfolderBase]: 8181/12037 cut-off events. [2025-02-08 01:04:13,083 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2025-02-08 01:04:13,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23951 conditions, 12037 events. 8181/12037 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 71585 event pairs, 2669 based on Foata normal form. 356/12391 useless extension candidates. Maximal degree in co-relation 23940. Up to 6007 conditions per place. [2025-02-08 01:04:13,137 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 47 selfloop transitions, 5 changer transitions 61/117 dead transitions. [2025-02-08 01:04:13,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 117 transitions, 475 flow [2025-02-08 01:04:13,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 01:04:13,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 01:04:13,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 164 transitions. [2025-02-08 01:04:13,149 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6165413533834586 [2025-02-08 01:04:13,151 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 73 flow. Second operand 7 states and 164 transitions. [2025-02-08 01:04:13,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 117 transitions, 475 flow [2025-02-08 01:04:13,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 117 transitions, 470 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 01:04:13,158 INFO L231 Difference]: Finished difference. Result has 50 places, 35 transitions, 119 flow [2025-02-08 01:04:13,159 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=119, PETRI_PLACES=50, PETRI_TRANSITIONS=35} [2025-02-08 01:04:13,161 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 8 predicate places. [2025-02-08 01:04:13,162 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 35 transitions, 119 flow [2025-02-08 01:04:13,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2025-02-08 01:04:13,162 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:04:13,162 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:04:13,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:04:13,162 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 1 more)] === [2025-02-08 01:04:13,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:04:13,163 INFO L85 PathProgramCache]: Analyzing trace with hash -2042763259, now seen corresponding path program 1 times [2025-02-08 01:04:13,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:04:13,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327488775] [2025-02-08 01:04:13,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:04:13,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:04:13,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 01:04:13,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 01:04:13,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:04:13,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:04:13,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:04:13,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:04:13,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327488775] [2025-02-08 01:04:13,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327488775] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:04:13,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:04:13,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:04:13,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816639734] [2025-02-08 01:04:13,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:04:13,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:04:13,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:04:13,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:04:13,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:04:13,383 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-02-08 01:04:13,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 35 transitions, 119 flow. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2025-02-08 01:04:13,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:04:13,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-02-08 01:04:13,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:04:14,218 INFO L124 PetriNetUnfolderBase]: 7600/11232 cut-off events. [2025-02-08 01:04:14,219 INFO L125 PetriNetUnfolderBase]: For 6595/6595 co-relation queries the response was YES. [2025-02-08 01:04:14,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28124 conditions, 11232 events. 7600/11232 cut-off events. For 6595/6595 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 64335 event pairs, 780 based on Foata normal form. 310/11529 useless extension candidates. Maximal degree in co-relation 28109. Up to 4973 conditions per place. [2025-02-08 01:04:14,268 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 58 selfloop transitions, 6 changer transitions 80/148 dead transitions. [2025-02-08 01:04:14,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 148 transitions, 751 flow [2025-02-08 01:04:14,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 01:04:14,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 01:04:14,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 214 transitions. [2025-02-08 01:04:14,271 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5631578947368421 [2025-02-08 01:04:14,271 INFO L175 Difference]: Start difference. First operand has 50 places, 35 transitions, 119 flow. Second operand 10 states and 214 transitions. [2025-02-08 01:04:14,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 148 transitions, 751 flow [2025-02-08 01:04:14,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 148 transitions, 724 flow, removed 7 selfloop flow, removed 3 redundant places. [2025-02-08 01:04:14,333 INFO L231 Difference]: Finished difference. Result has 60 places, 37 transitions, 162 flow [2025-02-08 01:04:14,333 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=162, PETRI_PLACES=60, PETRI_TRANSITIONS=37} [2025-02-08 01:04:14,333 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 18 predicate places. [2025-02-08 01:04:14,333 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 37 transitions, 162 flow [2025-02-08 01:04:14,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2025-02-08 01:04:14,334 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:04:14,334 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:04:14,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:04:14,334 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 1 more)] === [2025-02-08 01:04:14,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:04:14,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1688131195, now seen corresponding path program 1 times [2025-02-08 01:04:14,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:04:14,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334468918] [2025-02-08 01:04:14,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:04:14,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:04:14,340 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 01:04:14,343 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 01:04:14,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:04:14,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:04:14,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:04:14,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:04:14,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334468918] [2025-02-08 01:04:14,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334468918] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:04:14,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:04:14,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:04:14,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107791699] [2025-02-08 01:04:14,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:04:14,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:04:14,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:04:14,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:04:14,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:04:14,492 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-02-08 01:04:14,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 37 transitions, 162 flow. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2025-02-08 01:04:14,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:04:14,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-02-08 01:04:14,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:04:15,532 INFO L124 PetriNetUnfolderBase]: 8180/11957 cut-off events. [2025-02-08 01:04:15,533 INFO L125 PetriNetUnfolderBase]: For 20907/20907 co-relation queries the response was YES. [2025-02-08 01:04:15,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33784 conditions, 11957 events. 8180/11957 cut-off events. For 20907/20907 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 68714 event pairs, 632 based on Foata normal form. 355/12310 useless extension candidates. Maximal degree in co-relation 33762. Up to 3897 conditions per place. [2025-02-08 01:04:15,585 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 78 selfloop transitions, 14 changer transitions 104/200 dead transitions. [2025-02-08 01:04:15,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 200 transitions, 1173 flow [2025-02-08 01:04:15,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 01:04:15,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 01:04:15,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 280 transitions. [2025-02-08 01:04:15,589 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5668016194331984 [2025-02-08 01:04:15,589 INFO L175 Difference]: Start difference. First operand has 60 places, 37 transitions, 162 flow. Second operand 13 states and 280 transitions. [2025-02-08 01:04:15,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 200 transitions, 1173 flow [2025-02-08 01:04:15,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 200 transitions, 1072 flow, removed 36 selfloop flow, removed 6 redundant places. [2025-02-08 01:04:15,650 INFO L231 Difference]: Finished difference. Result has 72 places, 45 transitions, 302 flow [2025-02-08 01:04:15,650 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=302, PETRI_PLACES=72, PETRI_TRANSITIONS=45} [2025-02-08 01:04:15,651 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 30 predicate places. [2025-02-08 01:04:15,651 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 45 transitions, 302 flow [2025-02-08 01:04:15,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2025-02-08 01:04:15,652 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:04:15,652 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:04:15,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:04:15,652 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 1 more)] === [2025-02-08 01:04:15,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:04:15,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1071701062, now seen corresponding path program 1 times [2025-02-08 01:04:15,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:04:15,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794185489] [2025-02-08 01:04:15,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:04:15,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:04:15,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 01:04:15,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 01:04:15,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:04:15,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:04:15,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:04:15,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:04:15,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794185489] [2025-02-08 01:04:15,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794185489] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:04:15,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:04:15,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:04:15,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093387160] [2025-02-08 01:04:15,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:04:15,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:04:15,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:04:15,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:04:15,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:04:15,822 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-02-08 01:04:15,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 45 transitions, 302 flow. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2025-02-08 01:04:15,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:04:15,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-02-08 01:04:15,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:04:16,618 INFO L124 PetriNetUnfolderBase]: 7480/11027 cut-off events. [2025-02-08 01:04:16,619 INFO L125 PetriNetUnfolderBase]: For 40804/40804 co-relation queries the response was YES. [2025-02-08 01:04:16,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36756 conditions, 11027 events. 7480/11027 cut-off events. For 40804/40804 co-relation queries the response was YES. Maximal size of possible extension queue 361. Compared 61734 event pairs, 987 based on Foata normal form. 270/11289 useless extension candidates. Maximal degree in co-relation 36726. Up to 5246 conditions per place. [2025-02-08 01:04:16,724 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 66 selfloop transitions, 10 changer transitions 72/152 dead transitions. [2025-02-08 01:04:16,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 152 transitions, 1033 flow [2025-02-08 01:04:16,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 01:04:16,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 01:04:16,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 203 transitions. [2025-02-08 01:04:16,726 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5342105263157895 [2025-02-08 01:04:16,726 INFO L175 Difference]: Start difference. First operand has 72 places, 45 transitions, 302 flow. Second operand 10 states and 203 transitions. [2025-02-08 01:04:16,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 152 transitions, 1033 flow [2025-02-08 01:04:16,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 152 transitions, 941 flow, removed 46 selfloop flow, removed 8 redundant places. [2025-02-08 01:04:16,835 INFO L231 Difference]: Finished difference. Result has 74 places, 48 transitions, 360 flow [2025-02-08 01:04:16,835 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=360, PETRI_PLACES=74, PETRI_TRANSITIONS=48} [2025-02-08 01:04:16,835 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 32 predicate places. [2025-02-08 01:04:16,836 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 48 transitions, 360 flow [2025-02-08 01:04:16,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2025-02-08 01:04:16,836 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:04:16,836 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:04:16,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:04:16,836 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 1 more)] === [2025-02-08 01:04:16,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:04:16,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1249017094, now seen corresponding path program 1 times [2025-02-08 01:04:16,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:04:16,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405847646] [2025-02-08 01:04:16,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:04:16,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:04:16,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 01:04:16,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 01:04:16,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:04:16,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:04:16,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:04:16,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:04:16,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405847646] [2025-02-08 01:04:16,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405847646] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:04:16,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:04:16,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:04:16,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111870456] [2025-02-08 01:04:16,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:04:16,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:04:16,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:04:16,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:04:16,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:04:17,003 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-02-08 01:04:17,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 48 transitions, 360 flow. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2025-02-08 01:04:17,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:04:17,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-02-08 01:04:17,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:04:17,731 INFO L124 PetriNetUnfolderBase]: 7203/10627 cut-off events. [2025-02-08 01:04:17,732 INFO L125 PetriNetUnfolderBase]: For 33428/33428 co-relation queries the response was YES. [2025-02-08 01:04:17,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34549 conditions, 10627 events. 7203/10627 cut-off events. For 33428/33428 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 59598 event pairs, 1632 based on Foata normal form. 250/10874 useless extension candidates. Maximal degree in co-relation 34516. Up to 5419 conditions per place. [2025-02-08 01:04:17,775 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 63 selfloop transitions, 17 changer transitions 72/156 dead transitions. [2025-02-08 01:04:17,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 156 transitions, 1232 flow [2025-02-08 01:04:17,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 01:04:17,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 01:04:17,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 200 transitions. [2025-02-08 01:04:17,777 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2025-02-08 01:04:17,777 INFO L175 Difference]: Start difference. First operand has 74 places, 48 transitions, 360 flow. Second operand 10 states and 200 transitions. [2025-02-08 01:04:17,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 156 transitions, 1232 flow [2025-02-08 01:04:17,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 156 transitions, 1164 flow, removed 31 selfloop flow, removed 7 redundant places. [2025-02-08 01:04:17,989 INFO L231 Difference]: Finished difference. Result has 77 places, 52 transitions, 446 flow [2025-02-08 01:04:17,989 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=446, PETRI_PLACES=77, PETRI_TRANSITIONS=52} [2025-02-08 01:04:17,990 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 35 predicate places. [2025-02-08 01:04:17,990 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 52 transitions, 446 flow [2025-02-08 01:04:17,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2025-02-08 01:04:17,990 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:04:17,990 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:04:17,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 01:04:17,990 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 1 more)] === [2025-02-08 01:04:17,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:04:17,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1417180942, now seen corresponding path program 1 times [2025-02-08 01:04:17,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:04:17,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170846749] [2025-02-08 01:04:17,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:04:17,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:04:18,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 01:04:18,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 01:04:18,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:04:18,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:04:18,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:04:18,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:04:18,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170846749] [2025-02-08 01:04:18,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170846749] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:04:18,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:04:18,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:04:18,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342731338] [2025-02-08 01:04:18,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:04:18,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:04:18,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:04:18,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:04:18,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:04:18,137 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-02-08 01:04:18,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 52 transitions, 446 flow. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2025-02-08 01:04:18,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:04:18,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-02-08 01:04:18,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:04:19,263 INFO L124 PetriNetUnfolderBase]: 8864/13045 cut-off events. [2025-02-08 01:04:19,263 INFO L125 PetriNetUnfolderBase]: For 38716/38716 co-relation queries the response was YES. [2025-02-08 01:04:19,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40440 conditions, 13045 events. 8864/13045 cut-off events. For 38716/38716 co-relation queries the response was YES. Maximal size of possible extension queue 444. Compared 75319 event pairs, 1521 based on Foata normal form. 245/13277 useless extension candidates. Maximal degree in co-relation 40405. Up to 4472 conditions per place. [2025-02-08 01:04:19,340 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 65 selfloop transitions, 6 changer transitions 77/152 dead transitions. [2025-02-08 01:04:19,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 152 transitions, 1236 flow [2025-02-08 01:04:19,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 01:04:19,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 01:04:19,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 190 transitions. [2025-02-08 01:04:19,345 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2025-02-08 01:04:19,345 INFO L175 Difference]: Start difference. First operand has 77 places, 52 transitions, 446 flow. Second operand 9 states and 190 transitions. [2025-02-08 01:04:19,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 152 transitions, 1236 flow [2025-02-08 01:04:19,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 152 transitions, 1148 flow, removed 34 selfloop flow, removed 9 redundant places. [2025-02-08 01:04:19,697 INFO L231 Difference]: Finished difference. Result has 76 places, 36 transitions, 234 flow [2025-02-08 01:04:19,697 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=234, PETRI_PLACES=76, PETRI_TRANSITIONS=36} [2025-02-08 01:04:19,701 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 34 predicate places. [2025-02-08 01:04:19,701 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 36 transitions, 234 flow [2025-02-08 01:04:19,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2025-02-08 01:04:19,701 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:04:19,701 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] [2025-02-08 01:04:19,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 01:04:19,701 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 1 more)] === [2025-02-08 01:04:19,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:04:19,702 INFO L85 PathProgramCache]: Analyzing trace with hash -2024619573, now seen corresponding path program 1 times [2025-02-08 01:04:19,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:04:19,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410006346] [2025-02-08 01:04:19,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:04:19,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:04:19,711 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 01:04:19,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 01:04:19,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:04:19,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:04:19,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:04:19,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:04:19,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410006346] [2025-02-08 01:04:19,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410006346] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:04:19,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:04:19,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:04:19,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60981096] [2025-02-08 01:04:19,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:04:19,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:04:19,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:04:19,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:04:19,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:04:19,843 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-02-08 01:04:19,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 36 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2025-02-08 01:04:19,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:04:19,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-02-08 01:04:19,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:04:20,788 INFO L124 PetriNetUnfolderBase]: 5028/7520 cut-off events. [2025-02-08 01:04:20,788 INFO L125 PetriNetUnfolderBase]: For 20666/20666 co-relation queries the response was YES. [2025-02-08 01:04:20,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22103 conditions, 7520 events. 5028/7520 cut-off events. For 20666/20666 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 41542 event pairs, 1170 based on Foata normal form. 180/7698 useless extension candidates. Maximal degree in co-relation 22068. Up to 2916 conditions per place. [2025-02-08 01:04:20,817 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 42 selfloop transitions, 3 changer transitions 63/112 dead transitions. [2025-02-08 01:04:20,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 112 transitions, 793 flow [2025-02-08 01:04:20,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:04:20,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 01:04:20,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 162 transitions. [2025-02-08 01:04:20,819 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5328947368421053 [2025-02-08 01:04:20,819 INFO L175 Difference]: Start difference. First operand has 76 places, 36 transitions, 234 flow. Second operand 8 states and 162 transitions. [2025-02-08 01:04:20,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 112 transitions, 793 flow [2025-02-08 01:04:20,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 112 transitions, 551 flow, removed 40 selfloop flow, removed 23 redundant places. [2025-02-08 01:04:20,861 INFO L231 Difference]: Finished difference. Result has 62 places, 32 transitions, 123 flow [2025-02-08 01:04:20,861 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=123, PETRI_PLACES=62, PETRI_TRANSITIONS=32} [2025-02-08 01:04:20,862 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2025-02-08 01:04:20,862 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 32 transitions, 123 flow [2025-02-08 01:04:20,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2025-02-08 01:04:20,862 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:04:20,862 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] [2025-02-08 01:04:20,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 01:04:20,862 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 1 more)] === [2025-02-08 01:04:20,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:04:20,863 INFO L85 PathProgramCache]: Analyzing trace with hash 683914155, now seen corresponding path program 1 times [2025-02-08 01:04:20,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:04:20,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037857295] [2025-02-08 01:04:20,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:04:20,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:04:20,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 01:04:20,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 01:04:20,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:04:20,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:04:20,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:04:20,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:04:20,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037857295] [2025-02-08 01:04:20,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037857295] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:04:20,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:04:20,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 01:04:20,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794325324] [2025-02-08 01:04:20,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:04:20,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:04:20,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:04:20,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:04:20,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:04:20,938 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 38 [2025-02-08 01:04:20,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 32 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2025-02-08 01:04:20,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:04:20,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 38 [2025-02-08 01:04:20,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:04:21,105 INFO L124 PetriNetUnfolderBase]: 1375/2257 cut-off events. [2025-02-08 01:04:21,106 INFO L125 PetriNetUnfolderBase]: For 1534/1536 co-relation queries the response was YES. [2025-02-08 01:04:21,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5354 conditions, 2257 events. 1375/2257 cut-off events. For 1534/1536 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 11284 event pairs, 253 based on Foata normal form. 106/2363 useless extension candidates. Maximal degree in co-relation 5330. Up to 1127 conditions per place. [2025-02-08 01:04:21,110 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 44 selfloop transitions, 4 changer transitions 8/61 dead transitions. [2025-02-08 01:04:21,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 61 transitions, 331 flow [2025-02-08 01:04:21,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:04:21,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 01:04:21,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions. [2025-02-08 01:04:21,111 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.618421052631579 [2025-02-08 01:04:21,111 INFO L175 Difference]: Start difference. First operand has 62 places, 32 transitions, 123 flow. Second operand 4 states and 94 transitions. [2025-02-08 01:04:21,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 61 transitions, 331 flow [2025-02-08 01:04:21,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 61 transitions, 270 flow, removed 19 selfloop flow, removed 14 redundant places. [2025-02-08 01:04:21,114 INFO L231 Difference]: Finished difference. Result has 49 places, 34 transitions, 112 flow [2025-02-08 01:04:21,114 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=49, PETRI_TRANSITIONS=34} [2025-02-08 01:04:21,115 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 7 predicate places. [2025-02-08 01:04:21,115 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 34 transitions, 112 flow [2025-02-08 01:04:21,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2025-02-08 01:04:21,115 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:04:21,115 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] [2025-02-08 01:04:21,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 01:04:21,115 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 01:04:21,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:04:21,116 INFO L85 PathProgramCache]: Analyzing trace with hash -198617964, now seen corresponding path program 1 times [2025-02-08 01:04:21,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:04:21,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392944520] [2025-02-08 01:04:21,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:04:21,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:04:21,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 01:04:21,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 01:04:21,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:04:21,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:04:21,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:04:21,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:04:21,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392944520] [2025-02-08 01:04:21,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392944520] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:04:21,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:04:21,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:04:21,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232703138] [2025-02-08 01:04:21,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:04:21,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:04:21,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:04:21,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:04:21,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:04:21,183 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 38 [2025-02-08 01:04:21,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 34 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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) [2025-02-08 01:04:21,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:04:21,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 38 [2025-02-08 01:04:21,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:04:21,284 INFO L124 PetriNetUnfolderBase]: 831/1375 cut-off events. [2025-02-08 01:04:21,285 INFO L125 PetriNetUnfolderBase]: For 512/514 co-relation queries the response was YES. [2025-02-08 01:04:21,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3427 conditions, 1375 events. 831/1375 cut-off events. For 512/514 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 6014 event pairs, 127 based on Foata normal form. 76/1451 useless extension candidates. Maximal degree in co-relation 3413. Up to 445 conditions per place. [2025-02-08 01:04:21,287 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 42 selfloop transitions, 6 changer transitions 18/71 dead transitions. [2025-02-08 01:04:21,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 71 transitions, 353 flow [2025-02-08 01:04:21,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:04:21,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 01:04:21,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 113 transitions. [2025-02-08 01:04:21,288 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5947368421052631 [2025-02-08 01:04:21,288 INFO L175 Difference]: Start difference. First operand has 49 places, 34 transitions, 112 flow. Second operand 5 states and 113 transitions. [2025-02-08 01:04:21,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 71 transitions, 353 flow [2025-02-08 01:04:21,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 71 transitions, 344 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-08 01:04:21,289 INFO L231 Difference]: Finished difference. Result has 53 places, 34 transitions, 130 flow [2025-02-08 01:04:21,289 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=130, PETRI_PLACES=53, PETRI_TRANSITIONS=34} [2025-02-08 01:04:21,290 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 11 predicate places. [2025-02-08 01:04:21,290 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 34 transitions, 130 flow [2025-02-08 01:04:21,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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) [2025-02-08 01:04:21,290 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:04:21,290 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] [2025-02-08 01:04:21,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 01:04:21,291 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 01:04:21,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:04:21,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1225807935, now seen corresponding path program 1 times [2025-02-08 01:04:21,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:04:21,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387839503] [2025-02-08 01:04:21,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:04:21,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:04:21,295 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-08 01:04:21,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 01:04:21,298 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:04:21,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:04:21,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:04:21,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:04:21,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387839503] [2025-02-08 01:04:21,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387839503] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:04:21,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:04:21,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:04:21,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305744308] [2025-02-08 01:04:21,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:04:21,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:04:21,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:04:21,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:04:21,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:04:21,353 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 38 [2025-02-08 01:04:21,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 34 transitions, 130 flow. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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) [2025-02-08 01:04:21,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:04:21,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 38 [2025-02-08 01:04:21,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:04:21,432 INFO L124 PetriNetUnfolderBase]: 433/717 cut-off events. [2025-02-08 01:04:21,432 INFO L125 PetriNetUnfolderBase]: For 612/614 co-relation queries the response was YES. [2025-02-08 01:04:21,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1969 conditions, 717 events. 433/717 cut-off events. For 612/614 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2674 event pairs, 89 based on Foata normal form. 24/741 useless extension candidates. Maximal degree in co-relation 1953. Up to 268 conditions per place. [2025-02-08 01:04:21,434 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2025-02-08 01:04:21,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 57 transitions, 300 flow [2025-02-08 01:04:21,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:04:21,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:04:21,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 110 transitions. [2025-02-08 01:04:21,435 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4824561403508772 [2025-02-08 01:04:21,435 INFO L175 Difference]: Start difference. First operand has 53 places, 34 transitions, 130 flow. Second operand 6 states and 110 transitions. [2025-02-08 01:04:21,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 57 transitions, 300 flow [2025-02-08 01:04:21,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 271 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-08 01:04:21,436 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2025-02-08 01:04:21,437 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2025-02-08 01:04:21,437 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 6 predicate places. [2025-02-08 01:04:21,437 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2025-02-08 01:04:21,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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) [2025-02-08 01:04:21,439 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-02-08 01:04:21,439 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-02-08 01:04:21,439 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-02-08 01:04:21,440 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-02-08 01:04:21,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 01:04:21,440 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:04:21,442 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 01:04:21,442 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 01:04:21,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:04:21 BasicIcfg [2025-02-08 01:04:21,445 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 01:04:21,445 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 01:04:21,445 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 01:04:21,446 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 01:04:21,446 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:04:11" (3/4) ... [2025-02-08 01:04:21,447 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 01:04:21,449 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-08 01:04:21,449 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-08 01:04:21,449 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-08 01:04:21,451 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2025-02-08 01:04:21,452 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-02-08 01:04:21,452 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-08 01:04:21,452 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 01:04:21,494 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 01:04:21,494 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 01:04:21,495 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 01:04:21,495 INFO L158 Benchmark]: Toolchain (without parser) took 10845.75ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 109.6MB in the beginning and 802.0MB in the end (delta: -692.4MB). Peak memory consumption was 557.9MB. Max. memory is 16.1GB. [2025-02-08 01:04:21,495 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 127.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:04:21,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 521.44ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 89.0MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 01:04:21,495 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.85ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 87.3MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:04:21,496 INFO L158 Benchmark]: Boogie Preprocessor took 18.48ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 85.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:04:21,496 INFO L158 Benchmark]: IcfgBuilder took 294.01ms. Allocated memory is still 142.6MB. Free memory was 85.5MB in the beginning and 66.1MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 01:04:21,496 INFO L158 Benchmark]: TraceAbstraction took 9932.18ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 65.3MB in the beginning and 808.2MB in the end (delta: -742.9MB). Peak memory consumption was 507.6MB. Max. memory is 16.1GB. [2025-02-08 01:04:21,496 INFO L158 Benchmark]: Witness Printer took 49.14ms. Allocated memory is still 1.4GB. Free memory was 808.2MB in the beginning and 802.0MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:04:21,497 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 127.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 521.44ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 89.0MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.85ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 87.3MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.48ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 85.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 294.01ms. Allocated memory is still 142.6MB. Free memory was 85.5MB in the beginning and 66.1MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9932.18ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 65.3MB in the beginning and 808.2MB in the end (delta: -742.9MB). Peak memory consumption was 507.6MB. Max. memory is 16.1GB. * Witness Printer took 49.14ms. Allocated memory is still 1.4GB. Free memory was 808.2MB in the beginning and 802.0MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. 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 7 procedures, 62 locations, 4 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: 9.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 890 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 879 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1874 IncrementalHoareTripleChecker+Invalid, 1899 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 13 mSDtfsCounter, 1874 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=446occurred in iteration=5, InterpolantAutomatonStates: 82, 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, 1.3s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 718 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! [2025-02-08 01:04:21,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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