./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-simple-array-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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/weaver/popl20-simple-array-sum.wvr.c -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 0c7c5c48eda3eba87519854c38b7495ee97c35417d2a6e287791b53fe49d6c07 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 04:43:07,414 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:43:07,454 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 04:43:07,458 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:43:07,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:43:07,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:43:07,474 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:43:07,474 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:43:07,474 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:43:07,475 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:43:07,475 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:43:07,475 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:43:07,475 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:43:07,475 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:43:07,475 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:43:07,475 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:43:07,475 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:43:07,476 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 04:43:07,476 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:43:07,476 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 04:43:07,476 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:43:07,476 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:43:07,476 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:43:07,476 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:43:07,476 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 04:43:07,476 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:43:07,477 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:43:07,477 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:43:07,477 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:43:07,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:43:07,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:43:07,477 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:43:07,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:43:07,477 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:43:07,477 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:43:07,477 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:43:07,478 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:43:07,478 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:43:07,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:43:07,478 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:43:07,478 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:43:07,478 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:43:07,478 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:43:07,478 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 -> 0c7c5c48eda3eba87519854c38b7495ee97c35417d2a6e287791b53fe49d6c07 [2025-02-06 04:43:07,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:43:07,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:43:07,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:43:07,701 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:43:07,702 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:43:07,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-simple-array-sum.wvr.c [2025-02-06 04:43:08,844 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/807cad76b/d982b93bb09645e3863546866bd0242c/FLAG48adb739f [2025-02-06 04:43:09,087 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:43:09,088 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-simple-array-sum.wvr.c [2025-02-06 04:43:09,103 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/807cad76b/d982b93bb09645e3863546866bd0242c/FLAG48adb739f [2025-02-06 04:43:09,409 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/807cad76b/d982b93bb09645e3863546866bd0242c [2025-02-06 04:43:09,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:43:09,414 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:43:09,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:43:09,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:43:09,421 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:43:09,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:43:09" (1/1) ... [2025-02-06 04:43:09,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a2d94c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:43:09, skipping insertion in model container [2025-02-06 04:43:09,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:43:09" (1/1) ... [2025-02-06 04:43:09,436 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:43:09,553 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/weaver/popl20-simple-array-sum.wvr.c[2429,2442] [2025-02-06 04:43:09,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:43:09,563 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:43:09,574 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/weaver/popl20-simple-array-sum.wvr.c[2429,2442] [2025-02-06 04:43:09,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:43:09,586 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:43:09,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:43:09 WrapperNode [2025-02-06 04:43:09,587 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:43:09,587 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:43:09,588 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:43:09,588 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:43:09,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:43:09" (1/1) ... [2025-02-06 04:43:09,596 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:43:09" (1/1) ... [2025-02-06 04:43:09,607 INFO L138 Inliner]: procedures = 23, calls = 20, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 103 [2025-02-06 04:43:09,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:43:09,608 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:43:09,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:43:09,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:43:09,619 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:43:09" (1/1) ... [2025-02-06 04:43:09,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:43:09" (1/1) ... [2025-02-06 04:43:09,624 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:43:09" (1/1) ... [2025-02-06 04:43:09,632 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2025-02-06 04:43:09,632 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:43:09" (1/1) ... [2025-02-06 04:43:09,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:43:09" (1/1) ... [2025-02-06 04:43:09,639 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:43:09" (1/1) ... [2025-02-06 04:43:09,643 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:43:09" (1/1) ... [2025-02-06 04:43:09,644 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:43:09" (1/1) ... [2025-02-06 04:43:09,645 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:43:09" (1/1) ... [2025-02-06 04:43:09,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:43:09,647 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:43:09,647 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:43:09,647 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:43:09,648 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:43:09" (1/1) ... [2025-02-06 04:43:09,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:43:09,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:43:09,675 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) [2025-02-06 04:43:09,677 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 [2025-02-06 04:43:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:43:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 04:43:09,694 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 04:43:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-06 04:43:09,694 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-06 04:43:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-06 04:43:09,695 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-06 04:43:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:43:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 04:43:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 04:43:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 04:43:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 04:43:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:43:09,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:43:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 04:43:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 04:43:09,696 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 04:43:09,768 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:43:09,769 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:43:09,957 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 04:43:09,957 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:43:10,111 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:43:10,111 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:43:10,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:43:10 BoogieIcfgContainer [2025-02-06 04:43:10,111 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:43:10,114 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:43:10,114 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:43:10,117 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:43:10,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:43:09" (1/3) ... [2025-02-06 04:43:10,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539de03c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:43:10, skipping insertion in model container [2025-02-06 04:43:10,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:43:09" (2/3) ... [2025-02-06 04:43:10,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539de03c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:43:10, skipping insertion in model container [2025-02-06 04:43:10,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:43:10" (3/3) ... [2025-02-06 04:43:10,119 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-simple-array-sum.wvr.c [2025-02-06 04:43:10,129 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:43:10,130 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-simple-array-sum.wvr.c that has 4 procedures, 36 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2025-02-06 04:43:10,130 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 04:43:10,174 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-06 04:43:10,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 41 transitions, 103 flow [2025-02-06 04:43:10,234 INFO L124 PetriNetUnfolderBase]: 6/38 cut-off events. [2025-02-06 04:43:10,237 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-06 04:43:10,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 38 events. 6/38 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 30. Up to 3 conditions per place. [2025-02-06 04:43:10,243 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 41 transitions, 103 flow [2025-02-06 04:43:10,245 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 37 transitions, 92 flow [2025-02-06 04:43:10,252 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:43:10,260 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;@1206f51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:43:10,260 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-06 04:43:10,269 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 04:43:10,269 INFO L124 PetriNetUnfolderBase]: 6/36 cut-off events. [2025-02-06 04:43:10,269 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-06 04:43:10,270 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:43:10,271 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:43:10,275 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)] === [2025-02-06 04:43:10,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:43:10,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1990313920, now seen corresponding path program 1 times [2025-02-06 04:43:10,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:43:10,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447588944] [2025-02-06 04:43:10,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:43:10,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:43:10,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 04:43:10,433 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 04:43:10,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:43:10,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:10,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:43:10,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:43:10,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447588944] [2025-02-06 04:43:10,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447588944] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:43:10,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:43:10,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 04:43:10,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013107485] [2025-02-06 04:43:10,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:43:10,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 04:43:11,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:43:11,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 04:43:11,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 04:43:11,026 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2025-02-06 04:43:11,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 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) [2025-02-06 04:43:11,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:43:11,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2025-02-06 04:43:11,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:43:11,310 INFO L124 PetriNetUnfolderBase]: 1474/2293 cut-off events. [2025-02-06 04:43:11,311 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2025-02-06 04:43:11,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4505 conditions, 2293 events. 1474/2293 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 11683 event pairs, 952 based on Foata normal form. 1/2175 useless extension candidates. Maximal degree in co-relation 2189. Up to 1226 conditions per place. [2025-02-06 04:43:11,327 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 50 selfloop transitions, 6 changer transitions 1/64 dead transitions. [2025-02-06 04:43:11,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 64 transitions, 278 flow [2025-02-06 04:43:11,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 04:43:11,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 04:43:11,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 108 transitions. [2025-02-06 04:43:11,336 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.526829268292683 [2025-02-06 04:43:11,337 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 92 flow. Second operand 5 states and 108 transitions. [2025-02-06 04:43:11,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 64 transitions, 278 flow [2025-02-06 04:43:11,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 64 transitions, 254 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-06 04:43:11,344 INFO L231 Difference]: Finished difference. Result has 42 places, 42 transitions, 122 flow [2025-02-06 04:43:11,345 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=122, PETRI_PLACES=42, PETRI_TRANSITIONS=42} [2025-02-06 04:43:11,347 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2025-02-06 04:43:11,347 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 42 transitions, 122 flow [2025-02-06 04:43:11,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 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) [2025-02-06 04:43:11,348 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:43:11,348 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] [2025-02-06 04:43:11,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 04:43:11,348 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)] === [2025-02-06 04:43:11,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:43:11,349 INFO L85 PathProgramCache]: Analyzing trace with hash 801851109, now seen corresponding path program 1 times [2025-02-06 04:43:11,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:43:11,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7827974] [2025-02-06 04:43:11,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:43:11,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:43:11,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 04:43:11,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 04:43:11,362 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:43:11,362 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:11,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:43:11,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:43:11,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7827974] [2025-02-06 04:43:11,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7827974] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:43:11,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877173548] [2025-02-06 04:43:11,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:43:11,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:43:11,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:43:11,477 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 04:43:11,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 04:43:11,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 04:43:11,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 04:43:11,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:43:11,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:11,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 04:43:11,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:43:11,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:43:11,652 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 04:43:11,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:43:11,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877173548] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-06 04:43:11,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-06 04:43:11,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 9 [2025-02-06 04:43:11,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622572105] [2025-02-06 04:43:11,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:43:11,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:43:11,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:43:11,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:43:11,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2025-02-06 04:43:11,706 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2025-02-06 04:43:11,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 42 transitions, 122 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2025-02-06 04:43:11,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:43:11,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2025-02-06 04:43:11,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:43:12,093 INFO L124 PetriNetUnfolderBase]: 2892/4504 cut-off events. [2025-02-06 04:43:12,093 INFO L125 PetriNetUnfolderBase]: For 420/420 co-relation queries the response was YES. [2025-02-06 04:43:12,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9321 conditions, 4504 events. 2892/4504 cut-off events. For 420/420 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 25951 event pairs, 2113 based on Foata normal form. 1/4278 useless extension candidates. Maximal degree in co-relation 7180. Up to 2025 conditions per place. [2025-02-06 04:43:12,119 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 59 selfloop transitions, 6 changer transitions 0/72 dead transitions. [2025-02-06 04:43:12,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 72 transitions, 334 flow [2025-02-06 04:43:12,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 04:43:12,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 04:43:12,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2025-02-06 04:43:12,120 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5414634146341464 [2025-02-06 04:43:12,120 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 122 flow. Second operand 5 states and 111 transitions. [2025-02-06 04:43:12,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 72 transitions, 334 flow [2025-02-06 04:43:12,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 72 transitions, 326 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-06 04:43:12,123 INFO L231 Difference]: Finished difference. Result has 47 places, 45 transitions, 150 flow [2025-02-06 04:43:12,123 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=150, PETRI_PLACES=47, PETRI_TRANSITIONS=45} [2025-02-06 04:43:12,123 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 6 predicate places. [2025-02-06 04:43:12,123 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 45 transitions, 150 flow [2025-02-06 04:43:12,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2025-02-06 04:43:12,124 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:43:12,124 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] [2025-02-06 04:43:12,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 04:43:12,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:43:12,325 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)] === [2025-02-06 04:43:12,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:43:12,326 INFO L85 PathProgramCache]: Analyzing trace with hash 2032431742, now seen corresponding path program 1 times [2025-02-06 04:43:12,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:43:12,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070026208] [2025-02-06 04:43:12,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:43:12,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:43:12,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 04:43:12,343 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 04:43:12,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:43:12,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:12,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 04:43:12,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:43:12,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070026208] [2025-02-06 04:43:12,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070026208] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:43:12,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744884628] [2025-02-06 04:43:12,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:43:12,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:43:12,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:43:12,435 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 04:43:12,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 04:43:12,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 04:43:12,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 04:43:12,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:43:12,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:12,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 04:43:12,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:43:12,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 04:43:12,538 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 04:43:12,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 04:43:12,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744884628] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-06 04:43:12,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-06 04:43:12,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2025-02-06 04:43:12,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943729196] [2025-02-06 04:43:12,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:43:12,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:43:12,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:43:12,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:43:12,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 04:43:12,579 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2025-02-06 04:43:12,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 45 transitions, 150 flow. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2025-02-06 04:43:12,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:43:12,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2025-02-06 04:43:12,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:43:12,964 INFO L124 PetriNetUnfolderBase]: 3466/5174 cut-off events. [2025-02-06 04:43:12,965 INFO L125 PetriNetUnfolderBase]: For 253/253 co-relation queries the response was YES. [2025-02-06 04:43:12,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10717 conditions, 5174 events. 3466/5174 cut-off events. For 253/253 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 29081 event pairs, 1260 based on Foata normal form. 0/4782 useless extension candidates. Maximal degree in co-relation 8856. Up to 1478 conditions per place. [2025-02-06 04:43:12,990 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 91 selfloop transitions, 11 changer transitions 0/108 dead transitions. [2025-02-06 04:43:12,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 108 transitions, 508 flow [2025-02-06 04:43:12,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:43:12,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 04:43:12,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 149 transitions. [2025-02-06 04:43:12,994 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6056910569105691 [2025-02-06 04:43:12,994 INFO L175 Difference]: Start difference. First operand has 47 places, 45 transitions, 150 flow. Second operand 6 states and 149 transitions. [2025-02-06 04:43:12,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 108 transitions, 508 flow [2025-02-06 04:43:12,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 108 transitions, 504 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-06 04:43:12,998 INFO L231 Difference]: Finished difference. Result has 53 places, 50 transitions, 198 flow [2025-02-06 04:43:12,998 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=198, PETRI_PLACES=53, PETRI_TRANSITIONS=50} [2025-02-06 04:43:12,999 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 12 predicate places. [2025-02-06 04:43:12,999 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 50 transitions, 198 flow [2025-02-06 04:43:13,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2025-02-06 04:43:13,000 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:43:13,000 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] [2025-02-06 04:43:13,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 04:43:13,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:43:13,204 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)] === [2025-02-06 04:43:13,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:43:13,206 INFO L85 PathProgramCache]: Analyzing trace with hash -729988007, now seen corresponding path program 1 times [2025-02-06 04:43:13,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:43:13,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560064787] [2025-02-06 04:43:13,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:43:13,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:43:13,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 04:43:13,218 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 04:43:13,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:43:13,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:13,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:43:13,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:43:13,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560064787] [2025-02-06 04:43:13,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560064787] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:43:13,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:43:13,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 04:43:13,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314065228] [2025-02-06 04:43:13,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:43:13,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:43:13,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:43:13,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:43:13,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 04:43:13,296 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2025-02-06 04:43:13,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 50 transitions, 198 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2025-02-06 04:43:13,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:43:13,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2025-02-06 04:43:13,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:43:13,541 INFO L124 PetriNetUnfolderBase]: 2011/3148 cut-off events. [2025-02-06 04:43:13,542 INFO L125 PetriNetUnfolderBase]: For 1218/1218 co-relation queries the response was YES. [2025-02-06 04:43:13,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7089 conditions, 3148 events. 2011/3148 cut-off events. For 1218/1218 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 16391 event pairs, 1344 based on Foata normal form. 111/3131 useless extension candidates. Maximal degree in co-relation 4209. Up to 1609 conditions per place. [2025-02-06 04:43:13,555 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 69 selfloop transitions, 8 changer transitions 0/83 dead transitions. [2025-02-06 04:43:13,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 83 transitions, 408 flow [2025-02-06 04:43:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:43:13,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 04:43:13,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2025-02-06 04:43:13,556 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5284552845528455 [2025-02-06 04:43:13,556 INFO L175 Difference]: Start difference. First operand has 53 places, 50 transitions, 198 flow. Second operand 6 states and 130 transitions. [2025-02-06 04:43:13,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 83 transitions, 408 flow [2025-02-06 04:43:13,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 83 transitions, 397 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 04:43:13,560 INFO L231 Difference]: Finished difference. Result has 54 places, 45 transitions, 171 flow [2025-02-06 04:43:13,560 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=171, PETRI_PLACES=54, PETRI_TRANSITIONS=45} [2025-02-06 04:43:13,560 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 13 predicate places. [2025-02-06 04:43:13,560 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 45 transitions, 171 flow [2025-02-06 04:43:13,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2025-02-06 04:43:13,561 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:43:13,561 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] [2025-02-06 04:43:13,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 04:43:13,561 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)] === [2025-02-06 04:43:13,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:43:13,561 INFO L85 PathProgramCache]: Analyzing trace with hash -910070085, now seen corresponding path program 1 times [2025-02-06 04:43:13,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:43:13,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454026007] [2025-02-06 04:43:13,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:43:13,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:43:13,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 04:43:13,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 04:43:13,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:43:13,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:13,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 04:43:13,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:43:13,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454026007] [2025-02-06 04:43:13,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454026007] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:43:13,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966836161] [2025-02-06 04:43:13,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:43:13,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:43:13,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:43:13,644 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 04:43:13,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 04:43:13,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 04:43:13,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 04:43:13,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:43:13,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:13,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 04:43:13,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:43:13,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 04:43:13,749 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 04:43:13,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 04:43:13,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966836161] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-06 04:43:13,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-06 04:43:13,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2025-02-06 04:43:13,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678165360] [2025-02-06 04:43:13,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:43:13,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:43:13,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:43:13,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:43:13,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 04:43:13,793 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2025-02-06 04:43:13,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 45 transitions, 171 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2025-02-06 04:43:13,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:43:13,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2025-02-06 04:43:13,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:43:14,048 INFO L124 PetriNetUnfolderBase]: 2240/3476 cut-off events. [2025-02-06 04:43:14,048 INFO L125 PetriNetUnfolderBase]: For 2479/2479 co-relation queries the response was YES. [2025-02-06 04:43:14,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8282 conditions, 3476 events. 2240/3476 cut-off events. For 2479/2479 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 17979 event pairs, 717 based on Foata normal form. 0/3246 useless extension candidates. Maximal degree in co-relation 4551. Up to 1165 conditions per place. [2025-02-06 04:43:14,059 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 78 selfloop transitions, 8 changer transitions 0/93 dead transitions. [2025-02-06 04:43:14,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 93 transitions, 483 flow [2025-02-06 04:43:14,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:43:14,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 04:43:14,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 138 transitions. [2025-02-06 04:43:14,061 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5609756097560976 [2025-02-06 04:43:14,061 INFO L175 Difference]: Start difference. First operand has 54 places, 45 transitions, 171 flow. Second operand 6 states and 138 transitions. [2025-02-06 04:43:14,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 93 transitions, 483 flow [2025-02-06 04:43:14,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 93 transitions, 458 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-02-06 04:43:14,063 INFO L231 Difference]: Finished difference. Result has 57 places, 49 transitions, 189 flow [2025-02-06 04:43:14,063 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=189, PETRI_PLACES=57, PETRI_TRANSITIONS=49} [2025-02-06 04:43:14,064 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 16 predicate places. [2025-02-06 04:43:14,064 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 49 transitions, 189 flow [2025-02-06 04:43:14,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2025-02-06 04:43:14,064 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:43:14,064 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] [2025-02-06 04:43:14,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 04:43:14,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:43:14,265 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)] === [2025-02-06 04:43:14,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:43:14,266 INFO L85 PathProgramCache]: Analyzing trace with hash 389556408, now seen corresponding path program 1 times [2025-02-06 04:43:14,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:43:14,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618491847] [2025-02-06 04:43:14,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:43:14,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:43:14,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 04:43:14,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 04:43:14,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:43:14,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:14,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:43:14,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:43:14,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618491847] [2025-02-06 04:43:14,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618491847] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:43:14,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:43:14,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 04:43:14,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847150548] [2025-02-06 04:43:14,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:43:14,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 04:43:14,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:43:14,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 04:43:14,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 04:43:14,332 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2025-02-06 04:43:14,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 49 transitions, 189 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 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) [2025-02-06 04:43:14,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:43:14,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2025-02-06 04:43:14,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:43:14,561 INFO L124 PetriNetUnfolderBase]: 2461/3908 cut-off events. [2025-02-06 04:43:14,561 INFO L125 PetriNetUnfolderBase]: For 2022/2022 co-relation queries the response was YES. [2025-02-06 04:43:14,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9359 conditions, 3908 events. 2461/3908 cut-off events. For 2022/2022 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 20177 event pairs, 536 based on Foata normal form. 80/3980 useless extension candidates. Maximal degree in co-relation 5114. Up to 2578 conditions per place. [2025-02-06 04:43:14,581 INFO L140 encePairwiseOnDemand]: 37/41 looper letters, 65 selfloop transitions, 4 changer transitions 4/82 dead transitions. [2025-02-06 04:43:14,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 82 transitions, 453 flow [2025-02-06 04:43:14,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 04:43:14,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 04:43:14,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 96 transitions. [2025-02-06 04:43:14,583 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5853658536585366 [2025-02-06 04:43:14,583 INFO L175 Difference]: Start difference. First operand has 57 places, 49 transitions, 189 flow. Second operand 4 states and 96 transitions. [2025-02-06 04:43:14,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 82 transitions, 453 flow [2025-02-06 04:43:14,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 82 transitions, 450 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 04:43:14,588 INFO L231 Difference]: Finished difference. Result has 61 places, 52 transitions, 211 flow [2025-02-06 04:43:14,588 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=61, PETRI_TRANSITIONS=52} [2025-02-06 04:43:14,590 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 20 predicate places. [2025-02-06 04:43:14,590 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 52 transitions, 211 flow [2025-02-06 04:43:14,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 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) [2025-02-06 04:43:14,590 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:43:14,590 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:43:14,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 04:43:14,591 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)] === [2025-02-06 04:43:14,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:43:14,591 INFO L85 PathProgramCache]: Analyzing trace with hash 134948914, now seen corresponding path program 1 times [2025-02-06 04:43:14,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:43:14,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755885783] [2025-02-06 04:43:14,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:43:14,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:43:14,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-06 04:43:14,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 04:43:14,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:43:14,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:14,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:43:14,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:43:14,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755885783] [2025-02-06 04:43:14,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755885783] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:43:14,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:43:14,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 04:43:14,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395499678] [2025-02-06 04:43:14,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:43:14,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:43:14,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:43:14,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:43:14,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 04:43:14,704 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2025-02-06 04:43:14,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 52 transitions, 211 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:43:14,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:43:14,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2025-02-06 04:43:14,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:43:15,129 INFO L124 PetriNetUnfolderBase]: 3531/5766 cut-off events. [2025-02-06 04:43:15,129 INFO L125 PetriNetUnfolderBase]: For 3995/4031 co-relation queries the response was YES. [2025-02-06 04:43:15,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14884 conditions, 5766 events. 3531/5766 cut-off events. For 3995/4031 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 34162 event pairs, 1205 based on Foata normal form. 128/5872 useless extension candidates. Maximal degree in co-relation 8432. Up to 3056 conditions per place. [2025-02-06 04:43:15,148 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 98 selfloop transitions, 15 changer transitions 0/122 dead transitions. [2025-02-06 04:43:15,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 122 transitions, 705 flow [2025-02-06 04:43:15,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:43:15,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 04:43:15,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 144 transitions. [2025-02-06 04:43:15,150 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5853658536585366 [2025-02-06 04:43:15,150 INFO L175 Difference]: Start difference. First operand has 61 places, 52 transitions, 211 flow. Second operand 6 states and 144 transitions. [2025-02-06 04:43:15,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 122 transitions, 705 flow [2025-02-06 04:43:15,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 122 transitions, 705 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 04:43:15,153 INFO L231 Difference]: Finished difference. Result has 70 places, 65 transitions, 343 flow [2025-02-06 04:43:15,154 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=343, PETRI_PLACES=70, PETRI_TRANSITIONS=65} [2025-02-06 04:43:15,154 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 29 predicate places. [2025-02-06 04:43:15,154 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 65 transitions, 343 flow [2025-02-06 04:43:15,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:43:15,154 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:43:15,154 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:43:15,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 04:43:15,155 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)] === [2025-02-06 04:43:15,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:43:15,155 INFO L85 PathProgramCache]: Analyzing trace with hash 590096366, now seen corresponding path program 2 times [2025-02-06 04:43:15,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:43:15,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704572887] [2025-02-06 04:43:15,155 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 04:43:15,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:43:15,162 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 2 equivalence classes. [2025-02-06 04:43:15,168 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 04:43:15,168 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 04:43:15,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:15,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:43:15,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:43:15,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704572887] [2025-02-06 04:43:15,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704572887] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:43:15,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:43:15,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 04:43:15,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371457336] [2025-02-06 04:43:15,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:43:15,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:43:15,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:43:15,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:43:15,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 04:43:15,237 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2025-02-06 04:43:15,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 65 transitions, 343 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:43:15,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:43:15,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2025-02-06 04:43:15,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:43:15,768 INFO L124 PetriNetUnfolderBase]: 4662/7456 cut-off events. [2025-02-06 04:43:15,768 INFO L125 PetriNetUnfolderBase]: For 10097/10149 co-relation queries the response was YES. [2025-02-06 04:43:15,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22015 conditions, 7456 events. 4662/7456 cut-off events. For 10097/10149 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 43666 event pairs, 1629 based on Foata normal form. 140/7588 useless extension candidates. Maximal degree in co-relation 13850. Up to 2886 conditions per place. [2025-02-06 04:43:15,807 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 105 selfloop transitions, 13 changer transitions 1/128 dead transitions. [2025-02-06 04:43:15,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 128 transitions, 860 flow [2025-02-06 04:43:15,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:43:15,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 04:43:15,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 140 transitions. [2025-02-06 04:43:15,808 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5691056910569106 [2025-02-06 04:43:15,808 INFO L175 Difference]: Start difference. First operand has 70 places, 65 transitions, 343 flow. Second operand 6 states and 140 transitions. [2025-02-06 04:43:15,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 128 transitions, 860 flow [2025-02-06 04:43:15,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 128 transitions, 858 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-02-06 04:43:15,819 INFO L231 Difference]: Finished difference. Result has 78 places, 71 transitions, 441 flow [2025-02-06 04:43:15,819 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=441, PETRI_PLACES=78, PETRI_TRANSITIONS=71} [2025-02-06 04:43:15,819 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 37 predicate places. [2025-02-06 04:43:15,820 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 71 transitions, 441 flow [2025-02-06 04:43:15,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:43:15,820 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:43:15,820 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:43:15,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 04:43:15,820 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)] === [2025-02-06 04:43:15,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:43:15,821 INFO L85 PathProgramCache]: Analyzing trace with hash -280730008, now seen corresponding path program 3 times [2025-02-06 04:43:15,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:43:15,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465379691] [2025-02-06 04:43:15,821 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 04:43:15,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:43:15,827 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 31 statements into 2 equivalence classes. [2025-02-06 04:43:15,831 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 26 of 31 statements. [2025-02-06 04:43:15,831 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 04:43:15,831 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:15,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 04:43:15,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:43:15,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465379691] [2025-02-06 04:43:15,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465379691] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:43:15,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:43:15,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 04:43:15,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701659555] [2025-02-06 04:43:15,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:43:15,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:43:15,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:43:15,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:43:15,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 04:43:15,897 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2025-02-06 04:43:15,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 71 transitions, 441 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:43:15,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:43:15,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2025-02-06 04:43:15,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:43:16,197 INFO L124 PetriNetUnfolderBase]: 3378/5300 cut-off events. [2025-02-06 04:43:16,197 INFO L125 PetriNetUnfolderBase]: For 10037/10037 co-relation queries the response was YES. [2025-02-06 04:43:16,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16579 conditions, 5300 events. 3378/5300 cut-off events. For 10037/10037 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 27353 event pairs, 2471 based on Foata normal form. 41/5335 useless extension candidates. Maximal degree in co-relation 15736. Up to 4525 conditions per place. [2025-02-06 04:43:16,223 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 45 selfloop transitions, 4 changer transitions 27/83 dead transitions. [2025-02-06 04:43:16,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 83 transitions, 616 flow [2025-02-06 04:43:16,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:43:16,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 04:43:16,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 113 transitions. [2025-02-06 04:43:16,225 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45934959349593496 [2025-02-06 04:43:16,225 INFO L175 Difference]: Start difference. First operand has 78 places, 71 transitions, 441 flow. Second operand 6 states and 113 transitions. [2025-02-06 04:43:16,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 83 transitions, 616 flow [2025-02-06 04:43:16,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 83 transitions, 600 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-02-06 04:43:16,238 INFO L231 Difference]: Finished difference. Result has 80 places, 56 transitions, 327 flow [2025-02-06 04:43:16,238 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=327, PETRI_PLACES=80, PETRI_TRANSITIONS=56} [2025-02-06 04:43:16,238 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 39 predicate places. [2025-02-06 04:43:16,238 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 56 transitions, 327 flow [2025-02-06 04:43:16,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:43:16,239 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:43:16,239 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:43:16,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 04:43:16,239 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)] === [2025-02-06 04:43:16,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:43:16,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1159447761, now seen corresponding path program 1 times [2025-02-06 04:43:16,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:43:16,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601197140] [2025-02-06 04:43:16,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:43:16,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:43:16,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-06 04:43:16,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 04:43:16,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:43:16,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:16,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 04:43:16,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:43:16,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601197140] [2025-02-06 04:43:16,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601197140] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:43:16,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815403658] [2025-02-06 04:43:16,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:43:16,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:43:16,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:43:16,322 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 04:43:16,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 04:43:16,364 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-06 04:43:16,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 04:43:16,383 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:43:16,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:16,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 04:43:16,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:43:16,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 04:43:16,421 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 04:43:16,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 04:43:16,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815403658] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-06 04:43:16,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-06 04:43:16,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2025-02-06 04:43:16,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721507341] [2025-02-06 04:43:16,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:43:16,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:43:16,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:43:16,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:43:16,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 04:43:16,471 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2025-02-06 04:43:16,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 56 transitions, 327 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:43:16,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:43:16,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2025-02-06 04:43:16,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:43:16,722 INFO L124 PetriNetUnfolderBase]: 2917/4545 cut-off events. [2025-02-06 04:43:16,723 INFO L125 PetriNetUnfolderBase]: For 8392/8412 co-relation queries the response was YES. [2025-02-06 04:43:16,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14207 conditions, 4545 events. 2917/4545 cut-off events. For 8392/8412 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 23464 event pairs, 677 based on Foata normal form. 20/4489 useless extension candidates. Maximal degree in co-relation 14166. Up to 2865 conditions per place. [2025-02-06 04:43:16,742 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 52 selfloop transitions, 10 changer transitions 0/70 dead transitions. [2025-02-06 04:43:16,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 70 transitions, 520 flow [2025-02-06 04:43:16,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 04:43:16,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 04:43:16,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 92 transitions. [2025-02-06 04:43:16,744 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44878048780487806 [2025-02-06 04:43:16,744 INFO L175 Difference]: Start difference. First operand has 80 places, 56 transitions, 327 flow. Second operand 5 states and 92 transitions. [2025-02-06 04:43:16,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 70 transitions, 520 flow [2025-02-06 04:43:16,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 70 transitions, 493 flow, removed 4 selfloop flow, removed 5 redundant places. [2025-02-06 04:43:16,752 INFO L231 Difference]: Finished difference. Result has 74 places, 57 transitions, 347 flow [2025-02-06 04:43:16,753 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=347, PETRI_PLACES=74, PETRI_TRANSITIONS=57} [2025-02-06 04:43:16,753 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 33 predicate places. [2025-02-06 04:43:16,753 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 57 transitions, 347 flow [2025-02-06 04:43:16,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:43:16,753 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:43:16,753 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:43:16,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 04:43:16,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-02-06 04:43:16,954 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 04:43:16,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:43:16,955 INFO L85 PathProgramCache]: Analyzing trace with hash -362069113, now seen corresponding path program 1 times [2025-02-06 04:43:16,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:43:16,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578240027] [2025-02-06 04:43:16,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:43:16,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:43:16,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 04:43:16,966 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 04:43:16,966 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:43:16,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:17,012 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 04:43:17,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:43:17,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578240027] [2025-02-06 04:43:17,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578240027] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:43:17,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:43:17,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 04:43:17,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378161415] [2025-02-06 04:43:17,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:43:17,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:43:17,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:43:17,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:43:17,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 04:43:17,021 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 41 [2025-02-06 04:43:17,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 57 transitions, 347 flow. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2025-02-06 04:43:17,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:43:17,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 41 [2025-02-06 04:43:17,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:43:17,316 INFO L124 PetriNetUnfolderBase]: 2404/3895 cut-off events. [2025-02-06 04:43:17,316 INFO L125 PetriNetUnfolderBase]: For 9535/9557 co-relation queries the response was YES. [2025-02-06 04:43:17,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12552 conditions, 3895 events. 2404/3895 cut-off events. For 9535/9557 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 19424 event pairs, 508 based on Foata normal form. 78/3964 useless extension candidates. Maximal degree in co-relation 12513. Up to 2127 conditions per place. [2025-02-06 04:43:17,329 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 73 selfloop transitions, 15 changer transitions 2/99 dead transitions. [2025-02-06 04:43:17,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 99 transitions, 683 flow [2025-02-06 04:43:17,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:43:17,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 04:43:17,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 136 transitions. [2025-02-06 04:43:17,330 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5528455284552846 [2025-02-06 04:43:17,330 INFO L175 Difference]: Start difference. First operand has 74 places, 57 transitions, 347 flow. Second operand 6 states and 136 transitions. [2025-02-06 04:43:17,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 99 transitions, 683 flow [2025-02-06 04:43:17,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 99 transitions, 672 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 04:43:17,336 INFO L231 Difference]: Finished difference. Result has 79 places, 59 transitions, 411 flow [2025-02-06 04:43:17,337 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=411, PETRI_PLACES=79, PETRI_TRANSITIONS=59} [2025-02-06 04:43:17,337 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 38 predicate places. [2025-02-06 04:43:17,337 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 59 transitions, 411 flow [2025-02-06 04:43:17,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2025-02-06 04:43:17,337 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:43:17,337 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:43:17,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 04:43:17,338 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 04:43:17,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:43:17,338 INFO L85 PathProgramCache]: Analyzing trace with hash 233877883, now seen corresponding path program 2 times [2025-02-06 04:43:17,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:43:17,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565652912] [2025-02-06 04:43:17,339 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 04:43:17,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:43:17,345 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes. [2025-02-06 04:43:17,355 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 42 of 42 statements. [2025-02-06 04:43:17,355 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 04:43:17,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:17,462 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 04:43:17,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:43:17,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565652912] [2025-02-06 04:43:17,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565652912] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 04:43:17,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727988890] [2025-02-06 04:43:17,462 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 04:43:17,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 04:43:17,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:43:17,464 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 04:43:17,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 04:43:17,509 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes. [2025-02-06 04:43:17,531 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 42 of 42 statements. [2025-02-06 04:43:17,531 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 04:43:17,531 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:17,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 04:43:17,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 04:43:17,616 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 04:43:17,618 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 04:43:17,686 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 04:43:17,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727988890] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 04:43:17,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 04:43:17,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 16 [2025-02-06 04:43:17,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930030349] [2025-02-06 04:43:17,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 04:43:17,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-06 04:43:17,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:43:17,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-06 04:43:17,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2025-02-06 04:43:17,725 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 41 [2025-02-06 04:43:17,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 59 transitions, 411 flow. Second operand has 16 states, 16 states have (on average 9.25) internal successors, (148), 16 states have internal predecessors, (148), 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) [2025-02-06 04:43:17,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:43:17,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 41 [2025-02-06 04:43:17,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:43:20,178 INFO L124 PetriNetUnfolderBase]: 17380/25154 cut-off events. [2025-02-06 04:43:20,179 INFO L125 PetriNetUnfolderBase]: For 71442/71442 co-relation queries the response was YES. [2025-02-06 04:43:20,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82464 conditions, 25154 events. 17380/25154 cut-off events. For 71442/71442 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 141972 event pairs, 3071 based on Foata normal form. 381/25535 useless extension candidates. Maximal degree in co-relation 82422. Up to 5637 conditions per place. [2025-02-06 04:43:20,291 INFO L140 encePairwiseOnDemand]: 28/41 looper letters, 403 selfloop transitions, 98 changer transitions 41/544 dead transitions. [2025-02-06 04:43:20,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 544 transitions, 4513 flow [2025-02-06 04:43:20,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-02-06 04:43:20,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2025-02-06 04:43:20,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 579 transitions. [2025-02-06 04:43:20,295 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.415351506456241 [2025-02-06 04:43:20,295 INFO L175 Difference]: Start difference. First operand has 79 places, 59 transitions, 411 flow. Second operand 34 states and 579 transitions. [2025-02-06 04:43:20,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 544 transitions, 4513 flow [2025-02-06 04:43:20,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 544 transitions, 4309 flow, removed 49 selfloop flow, removed 3 redundant places. [2025-02-06 04:43:20,333 INFO L231 Difference]: Finished difference. Result has 136 places, 174 transitions, 1771 flow [2025-02-06 04:43:20,334 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=1771, PETRI_PLACES=136, PETRI_TRANSITIONS=174} [2025-02-06 04:43:20,334 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 95 predicate places. [2025-02-06 04:43:20,334 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 174 transitions, 1771 flow [2025-02-06 04:43:20,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.25) internal successors, (148), 16 states have internal predecessors, (148), 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) [2025-02-06 04:43:20,334 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:43:20,334 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:43:20,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 04:43:20,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-02-06 04:43:20,535 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 04:43:20,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:43:20,536 INFO L85 PathProgramCache]: Analyzing trace with hash -439520653, now seen corresponding path program 3 times [2025-02-06 04:43:20,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:43:20,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242292972] [2025-02-06 04:43:20,536 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 04:43:20,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:43:20,543 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 42 statements into 2 equivalence classes. [2025-02-06 04:43:20,560 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 42 of 42 statements. [2025-02-06 04:43:20,561 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-06 04:43:20,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:43:20,692 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 04:43:20,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:43:20,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242292972] [2025-02-06 04:43:20,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242292972] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:43:20,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:43:20,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 04:43:20,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160826984] [2025-02-06 04:43:20,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:43:20,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:43:20,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:43:20,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:43:20,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 04:43:20,707 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 41 [2025-02-06 04:43:20,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 174 transitions, 1771 flow. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 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) [2025-02-06 04:43:20,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:43:20,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 41 [2025-02-06 04:43:20,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:43:22,535 INFO L124 PetriNetUnfolderBase]: 13476/19808 cut-off events. [2025-02-06 04:43:22,535 INFO L125 PetriNetUnfolderBase]: For 164762/164762 co-relation queries the response was YES. [2025-02-06 04:43:22,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91714 conditions, 19808 events. 13476/19808 cut-off events. For 164762/164762 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 113065 event pairs, 750 based on Foata normal form. 169/19974 useless extension candidates. Maximal degree in co-relation 91646. Up to 7798 conditions per place. [2025-02-06 04:43:22,702 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 0 selfloop transitions, 0 changer transitions 307/307 dead transitions. [2025-02-06 04:43:22,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 307 transitions, 3566 flow [2025-02-06 04:43:22,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 04:43:22,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-06 04:43:22,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 198 transitions. [2025-02-06 04:43:22,703 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43902439024390244 [2025-02-06 04:43:22,703 INFO L175 Difference]: Start difference. First operand has 136 places, 174 transitions, 1771 flow. Second operand 11 states and 198 transitions. [2025-02-06 04:43:22,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 307 transitions, 3566 flow [2025-02-06 04:43:23,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 307 transitions, 3317 flow, removed 98 selfloop flow, removed 11 redundant places. [2025-02-06 04:43:23,299 INFO L231 Difference]: Finished difference. Result has 115 places, 0 transitions, 0 flow [2025-02-06 04:43:23,299 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1274, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=115, PETRI_TRANSITIONS=0} [2025-02-06 04:43:23,304 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 74 predicate places. [2025-02-06 04:43:23,304 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 0 transitions, 0 flow [2025-02-06 04:43:23,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 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) [2025-02-06 04:43:23,306 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2025-02-06 04:43:23,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2025-02-06 04:43:23,310 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-02-06 04:43:23,310 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-02-06 04:43:23,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 04:43:23,310 INFO L422 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:43:23,313 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 04:43:23,313 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 04:43:23,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 04:43:23 BasicIcfg [2025-02-06 04:43:23,324 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 04:43:23,328 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 04:43:23,328 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 04:43:23,328 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 04:43:23,328 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:43:10" (3/4) ... [2025-02-06 04:43:23,330 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 04:43:23,336 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-06 04:43:23,336 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-06 04:43:23,336 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-06 04:43:23,347 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 85 nodes and edges [2025-02-06 04:43:23,348 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2025-02-06 04:43:23,348 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2025-02-06 04:43:23,352 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 04:43:23,419 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 04:43:23,419 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 04:43:23,419 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 04:43:23,420 INFO L158 Benchmark]: Toolchain (without parser) took 14006.61ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 105.6MB in the beginning and 835.5MB in the end (delta: -729.9MB). Peak memory consumption was 469.4MB. Max. memory is 16.1GB. [2025-02-06 04:43:23,421 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 04:43:23,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.69ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 93.8MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 04:43:23,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.72ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 92.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 04:43:23,422 INFO L158 Benchmark]: Boogie Preprocessor took 38.35ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 90.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 04:43:23,422 INFO L158 Benchmark]: IcfgBuilder took 464.66ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 52.8MB in the end (delta: 38.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-06 04:43:23,422 INFO L158 Benchmark]: TraceAbstraction took 13210.06ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 51.9MB in the beginning and 843.8MB in the end (delta: -791.9MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2025-02-06 04:43:23,423 INFO L158 Benchmark]: Witness Printer took 91.95ms. Allocated memory is still 1.3GB. Free memory was 843.8MB in the beginning and 835.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 04:43:23,424 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.69ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 93.8MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.72ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 92.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.35ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 90.9MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 464.66ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 52.8MB in the end (delta: 38.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 13210.06ms. Allocated memory was 142.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 51.9MB in the beginning and 843.8MB in the end (delta: -791.9MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Witness Printer took 91.95ms. Allocated memory is still 1.3GB. Free memory was 843.8MB in the beginning and 835.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 94]: 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, 59 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: 13.1s, OverallIterations: 13, TraceHistogramMax: 2, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 878 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 811 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3869 IncrementalHoareTripleChecker+Invalid, 3907 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 16 mSDtfsCounter, 3869 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 394 GetRequests, 276 SyntacticMatches, 7 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 487 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1771occurred in iteration=12, InterpolantAutomatonStates: 106, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 521 NumberOfCodeBlocks, 516 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 639 ConstructedInterpolants, 0 QuantifiedInterpolants, 1821 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1073 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 23 InterpolantComputations, 12 PerfectInterpolantSequences, 34/51 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! [2025-02-06 04:43:23,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE