./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-two-queue.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 2b29a4c23931df07495caab7fd70ec22fec28fcea21b47e1c8eb19fb44a778d8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:54:53,170 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:54:53,237 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:54:53,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:54:53,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:54:53,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:54:53,261 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:54:53,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:54:53,262 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:54:53,263 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:54:53,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:54:53,263 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:54:53,264 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:54:53,264 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:54:53,265 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:54:53,265 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:54:53,266 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:54:53,266 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:54:53,266 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:54:53,267 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:54:53,267 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:54:53,267 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:54:53,268 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:54:53,268 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:54:53,268 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:54:53,269 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:54:53,269 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:54:53,270 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:54:53,270 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:54:53,270 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:54:53,271 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:54:53,271 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:54:53,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:54:53,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:54:53,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:54:53,272 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:54:53,272 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:54:53,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:54:53,273 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:54:53,273 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:54:53,274 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:54:53,274 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:54:53,274 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b29a4c23931df07495caab7fd70ec22fec28fcea21b47e1c8eb19fb44a778d8 [2024-11-19 01:54:53,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:54:53,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:54:53,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:54:53,581 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:54:53,582 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:54:53,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2024-11-19 01:54:55,018 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:54:55,249 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:54:55,249 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2024-11-19 01:54:55,257 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15d8202f4/7b6f48a1b8874eab888fa18d2269d724/FLAGb5db5e3c7 [2024-11-19 01:54:55,268 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15d8202f4/7b6f48a1b8874eab888fa18d2269d724 [2024-11-19 01:54:55,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:54:55,272 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:54:55,273 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:54:55,273 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:54:55,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:54:55,280 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:54:55" (1/1) ... [2024-11-19 01:54:55,281 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f94587e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:55, skipping insertion in model container [2024-11-19 01:54:55,282 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:54:55" (1/1) ... [2024-11-19 01:54:55,309 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:54:55,510 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-two-queue.wvr.c[3013,3026] [2024-11-19 01:54:55,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:54:55,534 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:54:55,554 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-two-queue.wvr.c[3013,3026] [2024-11-19 01:54:55,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:54:55,575 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:54:55,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:55 WrapperNode [2024-11-19 01:54:55,576 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:54:55,577 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:54:55,577 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:54:55,577 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:54:55,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:55" (1/1) ... [2024-11-19 01:54:55,590 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:55" (1/1) ... [2024-11-19 01:54:55,616 INFO L138 Inliner]: procedures = 23, calls = 33, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 198 [2024-11-19 01:54:55,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:54:55,617 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:54:55,618 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:54:55,618 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:54:55,631 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:55" (1/1) ... [2024-11-19 01:54:55,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:55" (1/1) ... [2024-11-19 01:54:55,637 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:55" (1/1) ... [2024-11-19 01:54:55,665 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-11-19 01:54:55,665 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:55" (1/1) ... [2024-11-19 01:54:55,666 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:55" (1/1) ... [2024-11-19 01:54:55,676 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:55" (1/1) ... [2024-11-19 01:54:55,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:55" (1/1) ... [2024-11-19 01:54:55,689 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:55" (1/1) ... [2024-11-19 01:54:55,691 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:55" (1/1) ... [2024-11-19 01:54:55,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:54:55,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:54:55,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:54:55,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:54:55,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:55" (1/1) ... [2024-11-19 01:54:55,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:54:55,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:54:55,737 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 01:54:55,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 01:54:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:54:55,788 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 01:54:55,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 01:54:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 01:54:55,789 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 01:54:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:54:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 01:54:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 01:54:55,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 01:54:55,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 01:54:55,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 01:54:55,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 01:54:55,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:54:55,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:54:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 01:54:55,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 01:54:55,793 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 01:54:55,894 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:54:55,896 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:54:56,238 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 01:54:56,239 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:54:56,552 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:54:56,552 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-19 01:54:56,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:54:56 BoogieIcfgContainer [2024-11-19 01:54:56,553 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:54:56,555 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:54:56,555 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:54:56,560 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:54:56,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:54:55" (1/3) ... [2024-11-19 01:54:56,561 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed8b889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:54:56, skipping insertion in model container [2024-11-19 01:54:56,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:54:55" (2/3) ... [2024-11-19 01:54:56,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed8b889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:54:56, skipping insertion in model container [2024-11-19 01:54:56,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:54:56" (3/3) ... [2024-11-19 01:54:56,564 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-two-queue.wvr.c [2024-11-19 01:54:56,582 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:54:56,582 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:54:56,583 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 01:54:56,628 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 01:54:56,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 28 transitions, 70 flow [2024-11-19 01:54:56,698 INFO L124 PetriNetUnfolderBase]: 4/26 cut-off events. [2024-11-19 01:54:56,699 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 01:54:56,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 26 events. 4/26 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 17. Up to 2 conditions per place. [2024-11-19 01:54:56,702 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 28 transitions, 70 flow [2024-11-19 01:54:56,705 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 25 transitions, 62 flow [2024-11-19 01:54:56,716 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:54:56,724 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;@5b5626bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:54:56,724 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-19 01:54:56,732 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 01:54:56,732 INFO L124 PetriNetUnfolderBase]: 4/24 cut-off events. [2024-11-19 01:54:56,732 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 01:54:56,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:54:56,734 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:54:56,735 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:54:56,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:54:56,740 INFO L85 PathProgramCache]: Analyzing trace with hash 439888984, now seen corresponding path program 1 times [2024-11-19 01:54:56,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:54:56,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256494822] [2024-11-19 01:54:56,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:54:56,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:54:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:54:57,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:54:57,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:54:57,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256494822] [2024-11-19 01:54:57,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256494822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:54:57,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:54:57,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 01:54:57,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743519174] [2024-11-19 01:54:57,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:54:57,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:54:57,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:54:57,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:54:57,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:54:57,259 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 28 [2024-11-19 01:54:57,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 25 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:54:57,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:54:57,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 28 [2024-11-19 01:54:57,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:54:57,411 INFO L124 PetriNetUnfolderBase]: 141/263 cut-off events. [2024-11-19 01:54:57,411 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-19 01:54:57,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 528 conditions, 263 events. 141/263 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1043 event pairs, 26 based on Foata normal form. 1/258 useless extension candidates. Maximal degree in co-relation 458. Up to 181 conditions per place. [2024-11-19 01:54:57,418 INFO L140 encePairwiseOnDemand]: 24/28 looper letters, 27 selfloop transitions, 3 changer transitions 1/36 dead transitions. [2024-11-19 01:54:57,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 36 transitions, 155 flow [2024-11-19 01:54:57,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:54:57,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:54:57,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2024-11-19 01:54:57,430 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6309523809523809 [2024-11-19 01:54:57,432 INFO L175 Difference]: Start difference. First operand has 28 places, 25 transitions, 62 flow. Second operand 3 states and 53 transitions. [2024-11-19 01:54:57,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 36 transitions, 155 flow [2024-11-19 01:54:57,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 36 transitions, 141 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 01:54:57,439 INFO L231 Difference]: Finished difference. Result has 27 places, 27 transitions, 73 flow [2024-11-19 01:54:57,441 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=27, PETRI_TRANSITIONS=27} [2024-11-19 01:54:57,446 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, -1 predicate places. [2024-11-19 01:54:57,446 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 27 transitions, 73 flow [2024-11-19 01:54:57,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:54:57,447 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:54:57,447 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:54:57,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 01:54:57,448 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:54:57,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:54:57,448 INFO L85 PathProgramCache]: Analyzing trace with hash -169688755, now seen corresponding path program 1 times [2024-11-19 01:54:57,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:54:57,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139444648] [2024-11-19 01:54:57,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:54:57,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:54:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:54:57,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:54:57,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:54:57,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139444648] [2024-11-19 01:54:57,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139444648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:54:57,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:54:57,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 01:54:57,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582709217] [2024-11-19 01:54:57,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:54:57,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:54:57,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:54:57,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:54:57,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:54:57,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 28 [2024-11-19 01:54:57,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 27 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:54:57,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:54:57,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 28 [2024-11-19 01:54:57,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:54:57,682 INFO L124 PetriNetUnfolderBase]: 105/206 cut-off events. [2024-11-19 01:54:57,682 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-19 01:54:57,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 206 events. 105/206 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 729 event pairs, 22 based on Foata normal form. 6/206 useless extension candidates. Maximal degree in co-relation 120. Up to 143 conditions per place. [2024-11-19 01:54:57,685 INFO L140 encePairwiseOnDemand]: 25/28 looper letters, 25 selfloop transitions, 2 changer transitions 2/34 dead transitions. [2024-11-19 01:54:57,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 34 transitions, 147 flow [2024-11-19 01:54:57,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:54:57,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:54:57,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2024-11-19 01:54:57,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-19 01:54:57,688 INFO L175 Difference]: Start difference. First operand has 27 places, 27 transitions, 73 flow. Second operand 3 states and 49 transitions. [2024-11-19 01:54:57,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 34 transitions, 147 flow [2024-11-19 01:54:57,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 34 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 01:54:57,690 INFO L231 Difference]: Finished difference. Result has 29 places, 28 transitions, 82 flow [2024-11-19 01:54:57,690 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=29, PETRI_TRANSITIONS=28} [2024-11-19 01:54:57,691 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 1 predicate places. [2024-11-19 01:54:57,691 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 28 transitions, 82 flow [2024-11-19 01:54:57,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:54:57,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:54:57,692 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:54:57,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:54:57,692 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:54:57,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:54:57,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1033703689, now seen corresponding path program 1 times [2024-11-19 01:54:57,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:54:57,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286825391] [2024-11-19 01:54:57,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:54:57,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:54:57,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:54:57,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:54:57,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:54:57,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286825391] [2024-11-19 01:54:57,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286825391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:54:57,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:54:57,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 01:54:57,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819803718] [2024-11-19 01:54:57,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:54:57,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:54:57,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:54:57,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:54:57,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:54:57,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 28 [2024-11-19 01:54:57,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 28 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:54:57,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:54:57,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 28 [2024-11-19 01:54:57,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:54:57,857 INFO L124 PetriNetUnfolderBase]: 80/168 cut-off events. [2024-11-19 01:54:57,858 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-19 01:54:57,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 168 events. 80/168 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 503 event pairs, 27 based on Foata normal form. 5/168 useless extension candidates. Maximal degree in co-relation 248. Up to 112 conditions per place. [2024-11-19 01:54:57,859 INFO L140 encePairwiseOnDemand]: 25/28 looper letters, 26 selfloop transitions, 2 changer transitions 4/37 dead transitions. [2024-11-19 01:54:57,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 37 transitions, 170 flow [2024-11-19 01:54:57,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:54:57,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:54:57,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2024-11-19 01:54:57,862 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2024-11-19 01:54:57,862 INFO L175 Difference]: Start difference. First operand has 29 places, 28 transitions, 82 flow. Second operand 3 states and 51 transitions. [2024-11-19 01:54:57,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 37 transitions, 170 flow [2024-11-19 01:54:57,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 37 transitions, 167 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 01:54:57,865 INFO L231 Difference]: Finished difference. Result has 31 places, 29 transitions, 92 flow [2024-11-19 01:54:57,866 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=31, PETRI_TRANSITIONS=29} [2024-11-19 01:54:57,866 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 3 predicate places. [2024-11-19 01:54:57,868 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 29 transitions, 92 flow [2024-11-19 01:54:57,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:54:57,868 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:54:57,868 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] [2024-11-19 01:54:57,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:54:57,869 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:54:57,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:54:57,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1248587000, now seen corresponding path program 1 times [2024-11-19 01:54:57,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:54:57,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405810758] [2024-11-19 01:54:57,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:54:57,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:54:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:54:58,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 01:54:58,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:54:58,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405810758] [2024-11-19 01:54:58,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405810758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:54:58,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:54:58,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:54:58,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172500047] [2024-11-19 01:54:58,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:54:58,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:54:58,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:54:58,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:54:58,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:54:58,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 28 [2024-11-19 01:54:58,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:54:58,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:54:58,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 28 [2024-11-19 01:54:58,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:54:58,115 INFO L124 PetriNetUnfolderBase]: 95/216 cut-off events. [2024-11-19 01:54:58,115 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2024-11-19 01:54:58,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 216 events. 95/216 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 824 event pairs, 67 based on Foata normal form. 4/211 useless extension candidates. Maximal degree in co-relation 266. Up to 150 conditions per place. [2024-11-19 01:54:58,117 INFO L140 encePairwiseOnDemand]: 24/28 looper letters, 23 selfloop transitions, 2 changer transitions 12/42 dead transitions. [2024-11-19 01:54:58,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 42 transitions, 199 flow [2024-11-19 01:54:58,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:54:58,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 01:54:58,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 62 transitions. [2024-11-19 01:54:58,120 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2024-11-19 01:54:58,120 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 92 flow. Second operand 4 states and 62 transitions. [2024-11-19 01:54:58,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 42 transitions, 199 flow [2024-11-19 01:54:58,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 42 transitions, 196 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 01:54:58,122 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 104 flow [2024-11-19 01:54:58,122 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2024-11-19 01:54:58,123 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 7 predicate places. [2024-11-19 01:54:58,123 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 104 flow [2024-11-19 01:54:58,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:54:58,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:54:58,124 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] [2024-11-19 01:54:58,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:54:58,124 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:54:58,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:54:58,124 INFO L85 PathProgramCache]: Analyzing trace with hash -739851490, now seen corresponding path program 1 times [2024-11-19 01:54:58,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:54:58,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413039932] [2024-11-19 01:54:58,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:54:58,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:54:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:54:58,264 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 01:54:58,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:54:58,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413039932] [2024-11-19 01:54:58,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413039932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:54:58,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:54:58,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:54:58,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143391915] [2024-11-19 01:54:58,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:54:58,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:54:58,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:54:58,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:54:58,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:54:58,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 28 [2024-11-19 01:54:58,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:54:58,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:54:58,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 28 [2024-11-19 01:54:58,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:54:58,350 INFO L124 PetriNetUnfolderBase]: 93/211 cut-off events. [2024-11-19 01:54:58,350 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-11-19 01:54:58,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 211 events. 93/211 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 769 event pairs, 66 based on Foata normal form. 7/209 useless extension candidates. Maximal degree in co-relation 476. Up to 151 conditions per place. [2024-11-19 01:54:58,355 INFO L140 encePairwiseOnDemand]: 24/28 looper letters, 24 selfloop transitions, 2 changer transitions 10/41 dead transitions. [2024-11-19 01:54:58,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 206 flow [2024-11-19 01:54:58,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:54:58,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 01:54:58,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 60 transitions. [2024-11-19 01:54:58,357 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2024-11-19 01:54:58,358 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 104 flow. Second operand 4 states and 60 transitions. [2024-11-19 01:54:58,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 206 flow [2024-11-19 01:54:58,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 198 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-19 01:54:58,360 INFO L231 Difference]: Finished difference. Result has 37 places, 31 transitions, 112 flow [2024-11-19 01:54:58,360 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=37, PETRI_TRANSITIONS=31} [2024-11-19 01:54:58,362 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 9 predicate places. [2024-11-19 01:54:58,362 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 112 flow [2024-11-19 01:54:58,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:54:58,363 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:54:58,363 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] [2024-11-19 01:54:58,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:54:58,363 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:54:58,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:54:58,364 INFO L85 PathProgramCache]: Analyzing trace with hash 271940661, now seen corresponding path program 1 times [2024-11-19 01:54:58,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:54:58,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943609697] [2024-11-19 01:54:58,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:54:58,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:54:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:55:00,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:55:00,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:00,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943609697] [2024-11-19 01:55:00,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943609697] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:55:00,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886642958] [2024-11-19 01:55:00,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:55:00,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:55:00,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:55:00,138 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:55:00,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 01:55:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:55:00,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-19 01:55:00,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:55:00,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 1 [2024-11-19 01:55:01,153 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 01:55:01,154 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:55:01,788 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:55:01,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 147 treesize of output 145 [2024-11-19 01:55:01,873 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:55:01,874 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 33 treesize of output 29 [2024-11-19 01:55:01,950 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:55:01,950 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 51 treesize of output 47 [2024-11-19 01:55:02,141 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 01:55:02,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886642958] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:55:02,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:55:02,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 34 [2024-11-19 01:55:02,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418828213] [2024-11-19 01:55:02,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:55:02,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-19 01:55:02,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:02,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-19 01:55:02,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1083, Unknown=0, NotChecked=0, Total=1190 [2024-11-19 01:55:02,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 28 [2024-11-19 01:55:02,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 112 flow. Second operand has 35 states, 35 states have (on average 6.828571428571428) internal successors, (239), 35 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:55:02,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:02,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 28 [2024-11-19 01:55:02,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:55:07,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 01:55:11,519 INFO L124 PetriNetUnfolderBase]: 721/1344 cut-off events. [2024-11-19 01:55:11,520 INFO L125 PetriNetUnfolderBase]: For 316/316 co-relation queries the response was YES. [2024-11-19 01:55:11,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3167 conditions, 1344 events. 721/1344 cut-off events. For 316/316 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 7165 event pairs, 120 based on Foata normal form. 63/1182 useless extension candidates. Maximal degree in co-relation 2265. Up to 247 conditions per place. [2024-11-19 01:55:11,529 INFO L140 encePairwiseOnDemand]: 12/28 looper letters, 139 selfloop transitions, 102 changer transitions 83/327 dead transitions. [2024-11-19 01:55:11,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 327 transitions, 1603 flow [2024-11-19 01:55:11,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-19 01:55:11,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2024-11-19 01:55:11,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 631 transitions. [2024-11-19 01:55:11,537 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38196125907990314 [2024-11-19 01:55:11,538 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 112 flow. Second operand 59 states and 631 transitions. [2024-11-19 01:55:11,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 327 transitions, 1603 flow [2024-11-19 01:55:11,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 327 transitions, 1583 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-19 01:55:11,544 INFO L231 Difference]: Finished difference. Result has 111 places, 136 transitions, 864 flow [2024-11-19 01:55:11,545 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=864, PETRI_PLACES=111, PETRI_TRANSITIONS=136} [2024-11-19 01:55:11,545 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 83 predicate places. [2024-11-19 01:55:11,545 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 136 transitions, 864 flow [2024-11-19 01:55:11,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 6.828571428571428) internal successors, (239), 35 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:55:11,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:11,546 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] [2024-11-19 01:55:11,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 01:55:11,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-19 01:55:11,747 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:55:11,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:11,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1047197763, now seen corresponding path program 2 times [2024-11-19 01:55:11,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:11,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495720884] [2024-11-19 01:55:11,748 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:55:11,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:11,788 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 01:55:11,789 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:55:12,735 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:55:12,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:12,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495720884] [2024-11-19 01:55:12,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495720884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:55:12,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636469456] [2024-11-19 01:55:12,736 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:55:12,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:55:12,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:55:12,737 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:55:12,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 01:55:12,828 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 01:55:12,828 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:55:12,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-19 01:55:12,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:55:12,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 1 [2024-11-19 01:55:13,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 01:55:13,203 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:55:13,602 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:55:13,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 147 treesize of output 145 [2024-11-19 01:55:13,620 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:55:13,620 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 33 treesize of output 29 [2024-11-19 01:55:13,709 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:55:13,709 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 51 treesize of output 47 [2024-11-19 01:55:13,847 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 01:55:13,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636469456] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:55:13,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:55:13,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 10] total 28 [2024-11-19 01:55:13,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060947038] [2024-11-19 01:55:13,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:55:13,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-19 01:55:13,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:13,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-19 01:55:13,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=717, Unknown=0, NotChecked=0, Total=812 [2024-11-19 01:55:14,335 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 28 [2024-11-19 01:55:14,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 136 transitions, 864 flow. Second operand has 29 states, 29 states have (on average 8.862068965517242) internal successors, (257), 29 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:55:14,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:14,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 28 [2024-11-19 01:55:14,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:55:26,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 01:55:31,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 01:55:39,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 01:55:43,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 01:55:47,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-19 01:55:53,276 INFO L124 PetriNetUnfolderBase]: 751/1560 cut-off events. [2024-11-19 01:55:53,276 INFO L125 PetriNetUnfolderBase]: For 5943/5954 co-relation queries the response was YES. [2024-11-19 01:55:53,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5883 conditions, 1560 events. 751/1560 cut-off events. For 5943/5954 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 9786 event pairs, 93 based on Foata normal form. 7/1530 useless extension candidates. Maximal degree in co-relation 5528. Up to 473 conditions per place. [2024-11-19 01:55:53,289 INFO L140 encePairwiseOnDemand]: 16/28 looper letters, 150 selfloop transitions, 122 changer transitions 43/328 dead transitions. [2024-11-19 01:55:53,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 328 transitions, 2424 flow [2024-11-19 01:55:53,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-19 01:55:53,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2024-11-19 01:55:53,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 578 transitions. [2024-11-19 01:55:53,295 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42128279883381925 [2024-11-19 01:55:53,297 INFO L175 Difference]: Start difference. First operand has 111 places, 136 transitions, 864 flow. Second operand 49 states and 578 transitions. [2024-11-19 01:55:53,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 328 transitions, 2424 flow [2024-11-19 01:55:53,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 328 transitions, 2199 flow, removed 103 selfloop flow, removed 6 redundant places. [2024-11-19 01:55:53,338 INFO L231 Difference]: Finished difference. Result has 153 places, 192 transitions, 1376 flow [2024-11-19 01:55:53,339 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=1376, PETRI_PLACES=153, PETRI_TRANSITIONS=192} [2024-11-19 01:55:53,340 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 125 predicate places. [2024-11-19 01:55:53,341 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 192 transitions, 1376 flow [2024-11-19 01:55:53,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.862068965517242) internal successors, (257), 29 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:55:53,342 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:55:53,342 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] [2024-11-19 01:55:53,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 01:55:53,543 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,SelfDestructingSolverStorable6 [2024-11-19 01:55:53,543 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:55:53,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:55:53,545 INFO L85 PathProgramCache]: Analyzing trace with hash 179423925, now seen corresponding path program 3 times [2024-11-19 01:55:53,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:55:53,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27162341] [2024-11-19 01:55:53,545 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 01:55:53,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:55:53,572 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 01:55:53,575 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:55:54,701 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:55:54,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:55:54,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27162341] [2024-11-19 01:55:54,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27162341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:55:54,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830649355] [2024-11-19 01:55:54,702 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 01:55:54,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:55:54,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:55:54,705 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:55:54,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 01:55:54,778 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 01:55:54,778 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:55:54,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-19 01:55:54,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:55:54,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 1 [2024-11-19 01:55:55,143 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:55:55,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 46 treesize of output 34 [2024-11-19 01:55:55,260 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 01:55:55,260 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:55:56,206 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:55:56,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 318 treesize of output 324 [2024-11-19 01:55:56,729 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:55:56,730 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 20 treesize of output 16 [2024-11-19 01:55:56,755 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-19 01:55:56,756 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 20 treesize of output 1 [2024-11-19 01:55:56,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:55:56,772 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2024-11-19 01:55:57,144 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:55:57,144 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 44 treesize of output 34 [2024-11-19 01:55:57,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:55:57,167 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 26 [2024-11-19 01:55:57,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:55:57,188 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 19 [2024-11-19 01:55:57,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:55:57,201 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 19 [2024-11-19 01:55:57,211 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-19 01:55:57,211 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 37 treesize of output 1 [2024-11-19 01:55:57,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:55:57,224 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 26 [2024-11-19 01:55:57,314 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:55:57,315 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 87 treesize of output 77 [2024-11-19 01:55:57,538 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 01:55:57,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830649355] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 01:55:57,538 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 01:55:57,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 34 [2024-11-19 01:55:57,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870633547] [2024-11-19 01:55:57,538 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 01:55:57,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-19 01:55:57,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:55:57,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-19 01:55:57,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1081, Unknown=0, NotChecked=0, Total=1190 [2024-11-19 01:55:57,607 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 28 [2024-11-19 01:55:57,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 192 transitions, 1376 flow. Second operand has 35 states, 35 states have (on average 6.742857142857143) internal successors, (236), 35 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:55:57,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:55:57,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 28 [2024-11-19 01:55:57,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:56:03,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-19 01:56:07,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-19 01:56:15,347 INFO L124 PetriNetUnfolderBase]: 1569/2895 cut-off events. [2024-11-19 01:56:15,347 INFO L125 PetriNetUnfolderBase]: For 13988/13988 co-relation queries the response was YES. [2024-11-19 01:56:15,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12001 conditions, 2895 events. 1569/2895 cut-off events. For 13988/13988 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 17976 event pairs, 120 based on Foata normal form. 42/2936 useless extension candidates. Maximal degree in co-relation 11365. Up to 804 conditions per place. [2024-11-19 01:56:15,364 INFO L140 encePairwiseOnDemand]: 12/28 looper letters, 167 selfloop transitions, 222 changer transitions 62/454 dead transitions. [2024-11-19 01:56:15,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 454 transitions, 3864 flow [2024-11-19 01:56:15,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-19 01:56:15,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2024-11-19 01:56:15,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 547 transitions. [2024-11-19 01:56:15,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36859838274932616 [2024-11-19 01:56:15,370 INFO L175 Difference]: Start difference. First operand has 153 places, 192 transitions, 1376 flow. Second operand 53 states and 547 transitions. [2024-11-19 01:56:15,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 454 transitions, 3864 flow [2024-11-19 01:56:15,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 454 transitions, 3718 flow, removed 46 selfloop flow, removed 17 redundant places. [2024-11-19 01:56:15,429 INFO L231 Difference]: Finished difference. Result has 209 places, 288 transitions, 2927 flow [2024-11-19 01:56:15,430 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=1254, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=53, PETRI_FLOW=2927, PETRI_PLACES=209, PETRI_TRANSITIONS=288} [2024-11-19 01:56:15,430 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 181 predicate places. [2024-11-19 01:56:15,431 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 288 transitions, 2927 flow [2024-11-19 01:56:15,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 6.742857142857143) internal successors, (236), 35 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:56:15,431 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:56:15,431 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] [2024-11-19 01:56:15,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 01:56:15,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:56:15,632 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-19 01:56:15,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:56:15,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1979972389, now seen corresponding path program 4 times [2024-11-19 01:56:15,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:56:15,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980148568] [2024-11-19 01:56:15,633 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 01:56:15,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:56:15,663 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 01:56:15,664 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:56:17,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:56:17,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:56:17,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980148568] [2024-11-19 01:56:17,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980148568] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:56:17,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95278768] [2024-11-19 01:56:17,669 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 01:56:17,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:56:17,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:56:17,671 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:56:17,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 01:56:17,747 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 01:56:17,747 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:56:17,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-19 01:56:17,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:56:17,765 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 [2024-11-19 01:56:17,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 1 [2024-11-19 01:56:17,983 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 01:56:17,983 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 11 treesize of output 11 [2024-11-19 01:56:18,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-11-19 01:56:19,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2024-11-19 01:56:19,406 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:56:19,406 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:56:22,355 INFO L349 Elim1Store]: treesize reduction 32, result has 63.2 percent of original size [2024-11-19 01:56:22,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 461 treesize of output 435 [2024-11-19 01:56:22,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:56:22,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 364 treesize of output 352 [2024-11-19 01:56:23,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 221 [2024-11-19 01:56:23,531 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:56:23,531 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 364 treesize of output 334