./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:48:49,920 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:48:49,987 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:48:49,991 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:48:49,992 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:48:50,012 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:48:50,013 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:48:50,013 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:48:50,014 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:48:50,014 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:48:50,015 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:48:50,015 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:48:50,016 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:48:50,016 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:48:50,016 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:48:50,017 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:48:50,017 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:48:50,018 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:48:50,018 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:48:50,018 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:48:50,019 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:48:50,022 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:48:50,022 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:48:50,023 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:48:50,023 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:48:50,023 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:48:50,023 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:48:50,023 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:48:50,024 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:48:50,024 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:48:50,024 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:48:50,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:48:50,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:48:50,025 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:48:50,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:48:50,026 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:48:50,026 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:48:50,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:48:50,026 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:48:50,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:48:50,027 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:48:50,028 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:48:50,028 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 [2024-11-09 02:48:50,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:48:50,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:48:50,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:48:50,326 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:48:50,326 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:48:50,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2024-11-09 02:48:51,653 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:48:51,857 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:48:51,858 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2024-11-09 02:48:51,866 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7df49ecf0/c429adf8778340b099aaae3cc47ddf7c/FLAGdead9c35b [2024-11-09 02:48:51,880 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7df49ecf0/c429adf8778340b099aaae3cc47ddf7c [2024-11-09 02:48:51,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:48:51,884 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:48:51,886 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:48:51,886 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:48:51,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:48:51,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:48:51" (1/1) ... [2024-11-09 02:48:51,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61252580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:48:51, skipping insertion in model container [2024-11-09 02:48:51,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:48:51" (1/1) ... [2024-11-09 02:48:51,912 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:48:52,104 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2637,2650] [2024-11-09 02:48:52,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:48:52,124 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:48:52,150 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2637,2650] [2024-11-09 02:48:52,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:48:52,188 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:48:52,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:48:52 WrapperNode [2024-11-09 02:48:52,188 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:48:52,190 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:48:52,190 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:48:52,190 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:48:52,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:48:52" (1/1) ... [2024-11-09 02:48:52,207 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:48:52" (1/1) ... [2024-11-09 02:48:52,244 INFO L138 Inliner]: procedures = 24, calls = 31, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 185 [2024-11-09 02:48:52,245 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:48:52,246 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:48:52,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:48:52,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:48:52,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:48:52" (1/1) ... [2024-11-09 02:48:52,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:48:52" (1/1) ... [2024-11-09 02:48:52,262 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:48:52" (1/1) ... [2024-11-09 02:48:52,277 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 7 writes are split as follows [0, 7]. [2024-11-09 02:48:52,277 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:48:52" (1/1) ... [2024-11-09 02:48:52,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:48:52" (1/1) ... [2024-11-09 02:48:52,285 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:48:52" (1/1) ... [2024-11-09 02:48:52,289 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:48:52" (1/1) ... [2024-11-09 02:48:52,291 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:48:52" (1/1) ... [2024-11-09 02:48:52,292 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:48:52" (1/1) ... [2024-11-09 02:48:52,296 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:48:52,297 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:48:52,297 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:48:52,297 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:48:52,300 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:48:52" (1/1) ... [2024-11-09 02:48:52,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:48:52,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:48:52,339 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 02:48:52,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 02:48:52,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:48:52,394 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 02:48:52,394 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 02:48:52,394 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 02:48:52,394 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 02:48:52,394 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 02:48:52,394 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 02:48:52,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:48:52,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 02:48:52,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 02:48:52,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 02:48:52,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 02:48:52,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:48:52,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:48:52,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 02:48:52,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 02:48:52,399 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 02:48:52,526 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:48:52,528 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:48:52,952 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:48:52,952 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:48:53,222 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:48:53,222 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-09 02:48:53,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:48:53 BoogieIcfgContainer [2024-11-09 02:48:53,223 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:48:53,227 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:48:53,227 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:48:53,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:48:53,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:48:51" (1/3) ... [2024-11-09 02:48:53,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44613788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:48:53, skipping insertion in model container [2024-11-09 02:48:53,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:48:52" (2/3) ... [2024-11-09 02:48:53,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44613788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:48:53, skipping insertion in model container [2024-11-09 02:48:53,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:48:53" (3/3) ... [2024-11-09 02:48:53,234 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2024-11-09 02:48:53,251 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:48:53,251 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 02:48:53,251 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:48:53,298 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 02:48:53,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 33 transitions, 87 flow [2024-11-09 02:48:53,442 INFO L124 PetriNetUnfolderBase]: 7/30 cut-off events. [2024-11-09 02:48:53,443 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 02:48:53,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 30 events. 7/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2024-11-09 02:48:53,447 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 33 transitions, 87 flow [2024-11-09 02:48:53,450 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 29 transitions, 76 flow [2024-11-09 02:48:53,463 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:48:53,472 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;@62c812b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:48:53,472 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 02:48:53,490 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:48:53,490 INFO L124 PetriNetUnfolderBase]: 7/28 cut-off events. [2024-11-09 02:48:53,490 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 02:48:53,490 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:48:53,491 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:48:53,492 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)] === [2024-11-09 02:48:53,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:48:53,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1264433614, now seen corresponding path program 1 times [2024-11-09 02:48:53,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:48:53,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538989708] [2024-11-09 02:48:53,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:48:53,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:48:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:48:54,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:48:54,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:48:54,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538989708] [2024-11-09 02:48:54,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538989708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:48:54,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:48:54,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 02:48:54,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133727598] [2024-11-09 02:48:54,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:48:54,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:48:54,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:48:54,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:48:54,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:48:54,120 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 33 [2024-11-09 02:48:54,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:48:54,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:48:54,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 33 [2024-11-09 02:48:54,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:48:54,462 INFO L124 PetriNetUnfolderBase]: 405/602 cut-off events. [2024-11-09 02:48:54,462 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-11-09 02:48:54,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1286 conditions, 602 events. 405/602 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1664 event pairs, 248 based on Foata normal form. 1/445 useless extension candidates. Maximal degree in co-relation 534. Up to 301 conditions per place. [2024-11-09 02:48:54,470 INFO L140 encePairwiseOnDemand]: 23/33 looper letters, 24 selfloop transitions, 8 changer transitions 25/58 dead transitions. [2024-11-09 02:48:54,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 58 transitions, 266 flow [2024-11-09 02:48:54,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 02:48:54,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 02:48:54,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 81 transitions. [2024-11-09 02:48:54,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4909090909090909 [2024-11-09 02:48:54,486 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 76 flow. Second operand 5 states and 81 transitions. [2024-11-09 02:48:54,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 58 transitions, 266 flow [2024-11-09 02:48:54,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 58 transitions, 242 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-09 02:48:54,494 INFO L231 Difference]: Finished difference. Result has 33 places, 33 transitions, 116 flow [2024-11-09 02:48:54,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=33, PETRI_TRANSITIONS=33} [2024-11-09 02:48:54,502 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2024-11-09 02:48:54,502 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 33 transitions, 116 flow [2024-11-09 02:48:54,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:48:54,503 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:48:54,503 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:48:54,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:48:54,504 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)] === [2024-11-09 02:48:54,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:48:54,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1953847253, now seen corresponding path program 1 times [2024-11-09 02:48:54,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:48:54,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705954679] [2024-11-09 02:48:54,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:48:54,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:48:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:48:54,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 02:48:54,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:48:54,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705954679] [2024-11-09 02:48:54,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705954679] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:48:54,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729557343] [2024-11-09 02:48:54,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:48:54,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:48:54,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:48:54,770 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:48:54,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 02:48:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:48:54,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 02:48:54,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:48:54,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 02:48:54,984 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:48:55,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 02:48:55,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729557343] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 02:48:55,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 02:48:55,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2024-11-09 02:48:55,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439969594] [2024-11-09 02:48:55,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:48:55,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:48:55,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:48:55,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:48:55,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 02:48:55,054 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 33 [2024-11-09 02:48:55,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 33 transitions, 116 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:48:55,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:48:55,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 33 [2024-11-09 02:48:55,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:48:55,200 INFO L124 PetriNetUnfolderBase]: 262/390 cut-off events. [2024-11-09 02:48:55,200 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 02:48:55,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 824 conditions, 390 events. 262/390 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1023 event pairs, 124 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 814. Up to 303 conditions per place. [2024-11-09 02:48:55,204 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 40 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2024-11-09 02:48:55,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 45 transitions, 230 flow [2024-11-09 02:48:55,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 02:48:55,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 02:48:55,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 62 transitions. [2024-11-09 02:48:55,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37575757575757573 [2024-11-09 02:48:55,208 INFO L175 Difference]: Start difference. First operand has 33 places, 33 transitions, 116 flow. Second operand 5 states and 62 transitions. [2024-11-09 02:48:55,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 45 transitions, 230 flow [2024-11-09 02:48:55,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 45 transitions, 212 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-09 02:48:55,210 INFO L231 Difference]: Finished difference. Result has 33 places, 34 transitions, 114 flow [2024-11-09 02:48:55,210 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=114, PETRI_PLACES=33, PETRI_TRANSITIONS=34} [2024-11-09 02:48:55,211 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2024-11-09 02:48:55,211 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 34 transitions, 114 flow [2024-11-09 02:48:55,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:48:55,211 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:48:55,211 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:48:55,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 02:48:55,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:48:55,416 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)] === [2024-11-09 02:48:55,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:48:55,417 INFO L85 PathProgramCache]: Analyzing trace with hash -858266857, now seen corresponding path program 1 times [2024-11-09 02:48:55,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:48:55,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737999641] [2024-11-09 02:48:55,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:48:55,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:48:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:48:55,665 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 02:48:55,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:48:55,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737999641] [2024-11-09 02:48:55,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737999641] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:48:55,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801694064] [2024-11-09 02:48:55,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:48:55,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:48:55,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:48:55,669 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:48:55,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 02:48:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:48:55,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 02:48:55,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:48:55,910 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 02:48:55,911 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:48:55,999 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 02:48:56,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801694064] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 02:48:56,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 02:48:56,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2024-11-09 02:48:56,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142686123] [2024-11-09 02:48:56,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 02:48:56,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 02:48:56,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:48:56,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 02:48:56,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-09 02:48:56,006 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 33 [2024-11-09 02:48:56,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 34 transitions, 114 flow. Second operand has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:48:56,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:48:56,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 33 [2024-11-09 02:48:56,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:48:56,392 INFO L124 PetriNetUnfolderBase]: 443/657 cut-off events. [2024-11-09 02:48:56,392 INFO L125 PetriNetUnfolderBase]: For 226/226 co-relation queries the response was YES. [2024-11-09 02:48:56,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1577 conditions, 657 events. 443/657 cut-off events. For 226/226 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2084 event pairs, 169 based on Foata normal form. 0/492 useless extension candidates. Maximal degree in co-relation 1531. Up to 377 conditions per place. [2024-11-09 02:48:56,397 INFO L140 encePairwiseOnDemand]: 18/33 looper letters, 54 selfloop transitions, 14 changer transitions 0/69 dead transitions. [2024-11-09 02:48:56,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 69 transitions, 358 flow [2024-11-09 02:48:56,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 02:48:56,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 02:48:56,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 101 transitions. [2024-11-09 02:48:56,400 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3400673400673401 [2024-11-09 02:48:56,400 INFO L175 Difference]: Start difference. First operand has 33 places, 34 transitions, 114 flow. Second operand 9 states and 101 transitions. [2024-11-09 02:48:56,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 69 transitions, 358 flow [2024-11-09 02:48:56,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 69 transitions, 338 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-11-09 02:48:56,403 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 160 flow [2024-11-09 02:48:56,403 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=160, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2024-11-09 02:48:56,405 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 10 predicate places. [2024-11-09 02:48:56,405 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 160 flow [2024-11-09 02:48:56,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:48:56,406 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:48:56,406 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:48:56,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 02:48:56,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-09 02:48:56,611 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)] === [2024-11-09 02:48:56,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:48:56,611 INFO L85 PathProgramCache]: Analyzing trace with hash 507961245, now seen corresponding path program 2 times [2024-11-09 02:48:56,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:48:56,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699836963] [2024-11-09 02:48:56,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:48:56,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:48:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:48:56,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 02:48:56,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:48:56,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699836963] [2024-11-09 02:48:56,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699836963] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:48:56,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003063442] [2024-11-09 02:48:56,789 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 02:48:56,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:48:56,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:48:56,792 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:48:56,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 02:48:56,895 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 02:48:56,895 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 02:48:56,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 02:48:56,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:48:56,958 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 02:48:56,958 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 02:48:56,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003063442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:48:56,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 02:48:56,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-11-09 02:48:56,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993848162] [2024-11-09 02:48:56,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:48:56,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:48:56,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:48:56,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:48:56,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 02:48:56,962 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 33 [2024-11-09 02:48:56,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 160 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:48:56,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:48:56,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 33 [2024-11-09 02:48:56,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:48:57,235 INFO L124 PetriNetUnfolderBase]: 693/1027 cut-off events. [2024-11-09 02:48:57,235 INFO L125 PetriNetUnfolderBase]: For 609/609 co-relation queries the response was YES. [2024-11-09 02:48:57,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2981 conditions, 1027 events. 693/1027 cut-off events. For 609/609 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3654 event pairs, 291 based on Foata normal form. 1/813 useless extension candidates. Maximal degree in co-relation 2925. Up to 642 conditions per place. [2024-11-09 02:48:57,245 INFO L140 encePairwiseOnDemand]: 26/33 looper letters, 65 selfloop transitions, 7 changer transitions 9/82 dead transitions. [2024-11-09 02:48:57,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 82 transitions, 482 flow [2024-11-09 02:48:57,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:48:57,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 02:48:57,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 89 transitions. [2024-11-09 02:48:57,248 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4494949494949495 [2024-11-09 02:48:57,248 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 160 flow. Second operand 6 states and 89 transitions. [2024-11-09 02:48:57,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 82 transitions, 482 flow [2024-11-09 02:48:57,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 82 transitions, 453 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-09 02:48:57,257 INFO L231 Difference]: Finished difference. Result has 47 places, 42 transitions, 192 flow [2024-11-09 02:48:57,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=192, PETRI_PLACES=47, PETRI_TRANSITIONS=42} [2024-11-09 02:48:57,259 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 15 predicate places. [2024-11-09 02:48:57,260 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 42 transitions, 192 flow [2024-11-09 02:48:57,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:48:57,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:48:57,260 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:48:57,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 02:48:57,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:48:57,462 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)] === [2024-11-09 02:48:57,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:48:57,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1584221265, now seen corresponding path program 3 times [2024-11-09 02:48:57,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:48:57,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443634351] [2024-11-09 02:48:57,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:48:57,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:48:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:48:57,708 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 02:48:57,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:48:57,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443634351] [2024-11-09 02:48:57,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443634351] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:48:57,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456372017] [2024-11-09 02:48:57,712 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 02:48:57,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:48:57,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:48:57,714 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:48:57,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 02:48:57,818 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-09 02:48:57,818 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 02:48:57,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 02:48:57,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:48:57,881 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 02:48:57,881 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 02:48:57,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456372017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:48:57,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 02:48:57,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-11-09 02:48:57,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358538996] [2024-11-09 02:48:57,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:48:57,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:48:57,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:48:57,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:48:57,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 02:48:57,886 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 33 [2024-11-09 02:48:57,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 42 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:48:57,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:48:57,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 33 [2024-11-09 02:48:57,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:48:58,137 INFO L124 PetriNetUnfolderBase]: 748/1101 cut-off events. [2024-11-09 02:48:58,137 INFO L125 PetriNetUnfolderBase]: For 1274/1274 co-relation queries the response was YES. [2024-11-09 02:48:58,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3676 conditions, 1101 events. 748/1101 cut-off events. For 1274/1274 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3913 event pairs, 366 based on Foata normal form. 1/930 useless extension candidates. Maximal degree in co-relation 3648. Up to 827 conditions per place. [2024-11-09 02:48:58,145 INFO L140 encePairwiseOnDemand]: 26/33 looper letters, 61 selfloop transitions, 11 changer transitions 9/82 dead transitions. [2024-11-09 02:48:58,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 82 transitions, 520 flow [2024-11-09 02:48:58,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:48:58,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 02:48:58,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 89 transitions. [2024-11-09 02:48:58,147 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4494949494949495 [2024-11-09 02:48:58,147 INFO L175 Difference]: Start difference. First operand has 47 places, 42 transitions, 192 flow. Second operand 6 states and 89 transitions. [2024-11-09 02:48:58,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 82 transitions, 520 flow [2024-11-09 02:48:58,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 82 transitions, 494 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-09 02:48:58,153 INFO L231 Difference]: Finished difference. Result has 53 places, 48 transitions, 263 flow [2024-11-09 02:48:58,153 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=263, PETRI_PLACES=53, PETRI_TRANSITIONS=48} [2024-11-09 02:48:58,154 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 21 predicate places. [2024-11-09 02:48:58,154 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 48 transitions, 263 flow [2024-11-09 02:48:58,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:48:58,154 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:48:58,155 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:48:58,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 02:48:58,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:48:58,356 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)] === [2024-11-09 02:48:58,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:48:58,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1972802087, now seen corresponding path program 4 times [2024-11-09 02:48:58,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:48:58,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092622572] [2024-11-09 02:48:58,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:48:58,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:48:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:48:58,546 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 02:48:58,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:48:58,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092622572] [2024-11-09 02:48:58,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092622572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:48:58,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203191507] [2024-11-09 02:48:58,547 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 02:48:58,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:48:58,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:48:58,549 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:48:58,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 02:48:58,641 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 02:48:58,641 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 02:48:58,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 02:48:58,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:48:58,715 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 02:48:58,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:48:58,784 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 02:48:58,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203191507] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 02:48:58,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 02:48:58,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-11-09 02:48:58,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245904657] [2024-11-09 02:48:58,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 02:48:58,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 02:48:58,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:48:58,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 02:48:58,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-09 02:48:58,788 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 33 [2024-11-09 02:48:58,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 48 transitions, 263 flow. Second operand has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 14 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:48:58,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:48:58,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 33 [2024-11-09 02:48:58,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:48:59,418 INFO L124 PetriNetUnfolderBase]: 750/1114 cut-off events. [2024-11-09 02:48:59,419 INFO L125 PetriNetUnfolderBase]: For 2237/2237 co-relation queries the response was YES. [2024-11-09 02:48:59,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4076 conditions, 1114 events. 750/1114 cut-off events. For 2237/2237 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4214 event pairs, 132 based on Foata normal form. 10/950 useless extension candidates. Maximal degree in co-relation 4041. Up to 332 conditions per place. [2024-11-09 02:48:59,427 INFO L140 encePairwiseOnDemand]: 16/33 looper letters, 89 selfloop transitions, 61 changer transitions 0/151 dead transitions. [2024-11-09 02:48:59,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 151 transitions, 1102 flow [2024-11-09 02:48:59,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 02:48:59,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-09 02:48:59,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 195 transitions. [2024-11-09 02:48:59,429 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.31100478468899523 [2024-11-09 02:48:59,429 INFO L175 Difference]: Start difference. First operand has 53 places, 48 transitions, 263 flow. Second operand 19 states and 195 transitions. [2024-11-09 02:48:59,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 151 transitions, 1102 flow [2024-11-09 02:48:59,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 151 transitions, 1016 flow, removed 15 selfloop flow, removed 3 redundant places. [2024-11-09 02:48:59,438 INFO L231 Difference]: Finished difference. Result has 73 places, 87 transitions, 691 flow [2024-11-09 02:48:59,438 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=691, PETRI_PLACES=73, PETRI_TRANSITIONS=87} [2024-11-09 02:48:59,438 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 41 predicate places. [2024-11-09 02:48:59,439 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 87 transitions, 691 flow [2024-11-09 02:48:59,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 14 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:48:59,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:48:59,439 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:48:59,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 02:48:59,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:48:59,640 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)] === [2024-11-09 02:48:59,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:48:59,641 INFO L85 PathProgramCache]: Analyzing trace with hash -2117743893, now seen corresponding path program 5 times [2024-11-09 02:48:59,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:48:59,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451772496] [2024-11-09 02:48:59,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:48:59,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:48:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:48:59,856 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 02:48:59,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:48:59,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451772496] [2024-11-09 02:48:59,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451772496] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:48:59,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906076706] [2024-11-09 02:48:59,857 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 02:48:59,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:48:59,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:48:59,859 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:48:59,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 02:48:59,962 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 02:48:59,962 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 02:48:59,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 02:48:59,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:49:00,037 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 02:49:00,038 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:49:00,106 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 02:49:00,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906076706] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 02:49:00,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 02:49:00,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-09 02:49:00,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852489031] [2024-11-09 02:49:00,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 02:49:00,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 02:49:00,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:49:00,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 02:49:00,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-09 02:49:00,109 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 33 [2024-11-09 02:49:00,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 87 transitions, 691 flow. Second operand has 15 states, 15 states have (on average 7.466666666666667) internal successors, (112), 15 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:49:00,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:49:00,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 33 [2024-11-09 02:49:00,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:49:00,672 INFO L124 PetriNetUnfolderBase]: 737/1088 cut-off events. [2024-11-09 02:49:00,672 INFO L125 PetriNetUnfolderBase]: For 3754/3754 co-relation queries the response was YES. [2024-11-09 02:49:00,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4696 conditions, 1088 events. 737/1088 cut-off events. For 3754/3754 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4056 event pairs, 164 based on Foata normal form. 9/997 useless extension candidates. Maximal degree in co-relation 4625. Up to 410 conditions per place. [2024-11-09 02:49:00,682 INFO L140 encePairwiseOnDemand]: 16/33 looper letters, 74 selfloop transitions, 65 changer transitions 0/140 dead transitions. [2024-11-09 02:49:00,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 140 transitions, 1213 flow [2024-11-09 02:49:00,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 02:49:00,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 02:49:00,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 156 transitions. [2024-11-09 02:49:00,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3151515151515151 [2024-11-09 02:49:00,685 INFO L175 Difference]: Start difference. First operand has 73 places, 87 transitions, 691 flow. Second operand 15 states and 156 transitions. [2024-11-09 02:49:00,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 140 transitions, 1213 flow [2024-11-09 02:49:00,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 140 transitions, 1114 flow, removed 24 selfloop flow, removed 6 redundant places. [2024-11-09 02:49:00,706 INFO L231 Difference]: Finished difference. Result has 81 places, 102 transitions, 857 flow [2024-11-09 02:49:00,706 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=857, PETRI_PLACES=81, PETRI_TRANSITIONS=102} [2024-11-09 02:49:00,707 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 49 predicate places. [2024-11-09 02:49:00,707 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 102 transitions, 857 flow [2024-11-09 02:49:00,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.466666666666667) internal successors, (112), 15 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:49:00,708 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:49:00,708 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:49:00,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 02:49:00,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:49:00,909 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)] === [2024-11-09 02:49:00,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:49:00,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1474438091, now seen corresponding path program 6 times [2024-11-09 02:49:00,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:49:00,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244550826] [2024-11-09 02:49:00,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:49:00,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:49:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:49:01,058 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 02:49:01,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:49:01,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244550826] [2024-11-09 02:49:01,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244550826] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:49:01,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580129754] [2024-11-09 02:49:01,059 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-09 02:49:01,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:49:01,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:49:01,061 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:49:01,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 02:49:01,159 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-09 02:49:01,159 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 02:49:01,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 02:49:01,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:49:01,220 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 02:49:01,220 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 02:49:01,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580129754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:49:01,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 02:49:01,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-11-09 02:49:01,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311684156] [2024-11-09 02:49:01,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:49:01,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:49:01,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:49:01,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:49:01,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 02:49:01,223 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 33 [2024-11-09 02:49:01,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 102 transitions, 857 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:49:01,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:49:01,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 33 [2024-11-09 02:49:01,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:49:01,480 INFO L124 PetriNetUnfolderBase]: 737/1086 cut-off events. [2024-11-09 02:49:01,480 INFO L125 PetriNetUnfolderBase]: For 4569/4569 co-relation queries the response was YES. [2024-11-09 02:49:01,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4857 conditions, 1086 events. 737/1086 cut-off events. For 4569/4569 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3914 event pairs, 267 based on Foata normal form. 1/987 useless extension candidates. Maximal degree in co-relation 4785. Up to 820 conditions per place. [2024-11-09 02:49:01,490 INFO L140 encePairwiseOnDemand]: 26/33 looper letters, 82 selfloop transitions, 32 changer transitions 10/125 dead transitions. [2024-11-09 02:49:01,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 125 transitions, 1186 flow [2024-11-09 02:49:01,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:49:01,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 02:49:01,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 87 transitions. [2024-11-09 02:49:01,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4393939393939394 [2024-11-09 02:49:01,491 INFO L175 Difference]: Start difference. First operand has 81 places, 102 transitions, 857 flow. Second operand 6 states and 87 transitions. [2024-11-09 02:49:01,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 125 transitions, 1186 flow [2024-11-09 02:49:01,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 125 transitions, 1087 flow, removed 20 selfloop flow, removed 7 redundant places. [2024-11-09 02:49:01,508 INFO L231 Difference]: Finished difference. Result has 80 places, 98 transitions, 782 flow [2024-11-09 02:49:01,508 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=782, PETRI_PLACES=80, PETRI_TRANSITIONS=98} [2024-11-09 02:49:01,509 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 48 predicate places. [2024-11-09 02:49:01,509 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 98 transitions, 782 flow [2024-11-09 02:49:01,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:49:01,509 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:49:01,509 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:49:01,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 02:49:01,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:49:01,710 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)] === [2024-11-09 02:49:01,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:49:01,710 INFO L85 PathProgramCache]: Analyzing trace with hash -777035834, now seen corresponding path program 1 times [2024-11-09 02:49:01,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:49:01,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847148835] [2024-11-09 02:49:01,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:49:01,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:49:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:49:03,164 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 02:49:03,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:49:03,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847148835] [2024-11-09 02:49:03,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847148835] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:49:03,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995248473] [2024-11-09 02:49:03,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:49:03,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:49:03,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:49:03,165 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:49:03,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 02:49:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:49:03,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-09 02:49:03,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:49:03,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 02:49:03,397 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-09 02:49:03,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2024-11-09 02:49:03,458 INFO L349 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2024-11-09 02:49:03,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2024-11-09 02:49:03,529 INFO L349 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2024-11-09 02:49:03,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 21 treesize of output 25 [2024-11-09 02:49:03,689 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-09 02:49:03,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 24 [2024-11-09 02:49:03,871 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-11-09 02:49:03,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 36 [2024-11-09 02:49:04,172 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 02:49:04,172 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:50:05,870 INFO L349 Elim1Store]: treesize reduction 102, result has 71.5 percent of original size [2024-11-09 02:50:05,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 1710 treesize of output 1005 [2024-11-09 02:50:06,028 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 02:50:06,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1090 treesize of output 1042 [2024-11-09 02:50:06,139 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 02:50:06,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 02:50:06,875 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 02:50:06,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 17 [2024-11-09 02:50:06,969 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-09 02:50:06,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 17 [2024-11-09 02:50:07,223 INFO L349 Elim1Store]: treesize reduction 8, result has 86.0 percent of original size [2024-11-09 02:50:07,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 78