./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:34:44,361 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:34:44,465 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:34:44,469 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:34:44,471 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:34:44,498 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:34:44,501 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:34:44,502 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:34:44,502 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:34:44,504 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:34:44,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:34:44,504 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:34:44,505 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:34:44,507 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:34:44,507 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:34:44,508 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:34:44,508 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:34:44,508 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:34:44,509 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:34:44,509 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:34:44,509 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:34:44,513 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:34:44,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:34:44,514 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:34:44,514 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:34:44,514 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:34:44,515 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:34:44,515 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:34:44,515 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:34:44,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:34:44,516 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:34:44,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:34:44,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:34:44,517 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:34:44,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:34:44,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:34:44,520 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:34:44,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:34:44,520 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:34:44,521 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:34:44,521 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:34:44,522 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:34:44,522 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 [2024-11-10 10:34:44,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:34:44,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:34:44,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:34:44,828 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:34:44,829 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:34:44,830 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2024-11-10 10:34:46,292 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:34:46,513 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:34:46,513 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2024-11-10 10:34:46,522 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a90d39391/7d78da2455fa4fa7b6d203ae08ace36f/FLAG626c85e52 [2024-11-10 10:34:46,871 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a90d39391/7d78da2455fa4fa7b6d203ae08ace36f [2024-11-10 10:34:46,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:34:46,875 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:34:46,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:34:46,876 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:34:46,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:34:46,885 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:34:46" (1/1) ... [2024-11-10 10:34:46,886 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ceea350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:34:46, skipping insertion in model container [2024-11-10 10:34:46,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:34:46" (1/1) ... [2024-11-10 10:34:46,910 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:34:47,128 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2637,2650] [2024-11-10 10:34:47,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:34:47,155 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:34:47,187 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2637,2650] [2024-11-10 10:34:47,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:34:47,211 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:34:47,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:34:47 WrapperNode [2024-11-10 10:34:47,212 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:34:47,213 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:34:47,213 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:34:47,214 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:34:47,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:34:47" (1/1) ... [2024-11-10 10:34:47,237 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:34:47" (1/1) ... [2024-11-10 10:34:47,265 INFO L138 Inliner]: procedures = 24, calls = 31, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 181 [2024-11-10 10:34:47,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:34:47,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:34:47,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:34:47,270 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:34:47,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:34:47" (1/1) ... [2024-11-10 10:34:47,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:34:47" (1/1) ... [2024-11-10 10:34:47,297 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:34:47" (1/1) ... [2024-11-10 10:34:47,316 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 7 writes are split as follows [0, 7]. [2024-11-10 10:34:47,317 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:34:47" (1/1) ... [2024-11-10 10:34:47,317 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:34:47" (1/1) ... [2024-11-10 10:34:47,335 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:34:47" (1/1) ... [2024-11-10 10:34:47,336 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:34:47" (1/1) ... [2024-11-10 10:34:47,338 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:34:47" (1/1) ... [2024-11-10 10:34:47,341 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:34:47" (1/1) ... [2024-11-10 10:34:47,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:34:47,346 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:34:47,347 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:34:47,348 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:34:47,349 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:34:47" (1/1) ... [2024-11-10 10:34:47,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:34:47,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:34:47,387 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) [2024-11-10 10:34:47,389 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 [2024-11-10 10:34:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:34:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 10:34:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 10:34:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 10:34:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 10:34:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 10:34:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 10:34:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:34:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:34:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:34:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:34:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:34:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:34:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:34:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:34:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:34:47,432 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 10:34:47,535 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:34:47,537 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:34:47,909 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 10:34:47,909 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:34:48,208 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:34:48,209 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:34:48,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:34:48 BoogieIcfgContainer [2024-11-10 10:34:48,209 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:34:48,212 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:34:48,212 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:34:48,215 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:34:48,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:34:46" (1/3) ... [2024-11-10 10:34:48,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406b92e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:34:48, skipping insertion in model container [2024-11-10 10:34:48,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:34:47" (2/3) ... [2024-11-10 10:34:48,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406b92e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:34:48, skipping insertion in model container [2024-11-10 10:34:48,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:34:48" (3/3) ... [2024-11-10 10:34:48,218 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2024-11-10 10:34:48,236 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:34:48,236 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:34:48,236 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 10:34:48,286 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 10:34:48,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 54 transitions, 129 flow [2024-11-10 10:34:48,361 INFO L124 PetriNetUnfolderBase]: 14/51 cut-off events. [2024-11-10 10:34:48,362 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 10:34:48,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 14/51 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2024-11-10 10:34:48,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 54 transitions, 129 flow [2024-11-10 10:34:48,371 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 50 transitions, 118 flow [2024-11-10 10:34:48,379 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:34:48,385 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;@379d9628, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:34:48,386 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-10 10:34:48,401 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 10:34:48,402 INFO L124 PetriNetUnfolderBase]: 14/49 cut-off events. [2024-11-10 10:34:48,402 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 10:34:48,402 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:34:48,403 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:34:48,404 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:34:48,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:34:48,409 INFO L85 PathProgramCache]: Analyzing trace with hash -464535506, now seen corresponding path program 1 times [2024-11-10 10:34:48,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:34:48,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329430776] [2024-11-10 10:34:48,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:34:48,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:34:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:34:48,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:34:48,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:34:48,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329430776] [2024-11-10 10:34:48,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329430776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:34:48,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:34:48,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 10:34:48,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355016234] [2024-11-10 10:34:48,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:34:48,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 10:34:48,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:34:48,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 10:34:48,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 10:34:48,716 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 54 [2024-11-10 10:34:48,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 50 transitions, 118 flow. Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:34:48,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:34:48,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 54 [2024-11-10 10:34:48,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:34:48,869 INFO L124 PetriNetUnfolderBase]: 203/353 cut-off events. [2024-11-10 10:34:48,869 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-11-10 10:34:48,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 697 conditions, 353 events. 203/353 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1227 event pairs, 124 based on Foata normal form. 79/417 useless extension candidates. Maximal degree in co-relation 578. Up to 301 conditions per place. [2024-11-10 10:34:48,875 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 28 selfloop transitions, 0 changer transitions 0/43 dead transitions. [2024-11-10 10:34:48,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 43 transitions, 160 flow [2024-11-10 10:34:48,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 10:34:48,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 10:34:48,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 71 transitions. [2024-11-10 10:34:48,890 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6574074074074074 [2024-11-10 10:34:48,892 INFO L175 Difference]: Start difference. First operand has 46 places, 50 transitions, 118 flow. Second operand 2 states and 71 transitions. [2024-11-10 10:34:48,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 43 transitions, 160 flow [2024-11-10 10:34:48,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 43 transitions, 148 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-10 10:34:48,900 INFO L231 Difference]: Finished difference. Result has 41 places, 43 transitions, 92 flow [2024-11-10 10:34:48,902 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=92, PETRI_PLACES=41, PETRI_TRANSITIONS=43} [2024-11-10 10:34:48,906 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -5 predicate places. [2024-11-10 10:34:48,906 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 43 transitions, 92 flow [2024-11-10 10:34:48,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:34:48,907 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:34:48,907 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:34:48,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:34:48,907 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:34:48,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:34:48,908 INFO L85 PathProgramCache]: Analyzing trace with hash -2115797475, now seen corresponding path program 1 times [2024-11-10 10:34:48,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:34:48,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383091203] [2024-11-10 10:34:48,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:34:48,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:34:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:34:49,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:34:49,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:34:49,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383091203] [2024-11-10 10:34:49,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383091203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:34:49,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:34:49,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:34:49,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132343331] [2024-11-10 10:34:49,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:34:49,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:34:49,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:34:49,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:34:49,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:34:49,282 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 54 [2024-11-10 10:34:49,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 43 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-10 10:34:49,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:34:49,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 54 [2024-11-10 10:34:49,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:34:49,655 INFO L124 PetriNetUnfolderBase]: 408/712 cut-off events. [2024-11-10 10:34:49,656 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-10 10:34:49,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1353 conditions, 712 events. 408/712 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2773 event pairs, 248 based on Foata normal form. 1/680 useless extension candidates. Maximal degree in co-relation 1350. Up to 305 conditions per place. [2024-11-10 10:34:49,663 INFO L140 encePairwiseOnDemand]: 40/54 looper letters, 28 selfloop transitions, 8 changer transitions 32/79 dead transitions. [2024-11-10 10:34:49,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 79 transitions, 306 flow [2024-11-10 10:34:49,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:34:49,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:34:49,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2024-11-10 10:34:49,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5148148148148148 [2024-11-10 10:34:49,668 INFO L175 Difference]: Start difference. First operand has 41 places, 43 transitions, 92 flow. Second operand 5 states and 139 transitions. [2024-11-10 10:34:49,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 79 transitions, 306 flow [2024-11-10 10:34:49,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 79 transitions, 306 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 10:34:49,676 INFO L231 Difference]: Finished difference. Result has 48 places, 47 transitions, 144 flow [2024-11-10 10:34:49,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=144, PETRI_PLACES=48, PETRI_TRANSITIONS=47} [2024-11-10 10:34:49,680 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places. [2024-11-10 10:34:49,682 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 47 transitions, 144 flow [2024-11-10 10:34:49,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-10 10:34:49,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:34:49,683 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:34:49,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:34:49,683 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:34:49,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:34:49,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1505604279, now seen corresponding path program 1 times [2024-11-10 10:34:49,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:34:49,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795400635] [2024-11-10 10:34:49,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:34:49,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:34:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:34:49,915 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 10:34:49,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:34:49,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795400635] [2024-11-10 10:34:49,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795400635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:34:49,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63711578] [2024-11-10 10:34:49,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:34:49,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:34:49,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:34:49,920 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) [2024-11-10 10:34:49,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 10:34:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:34:50,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 10:34:50,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:34:50,192 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 10:34:50,193 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 10:34:50,287 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 10:34:50,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63711578] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 10:34:50,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 10:34:50,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2024-11-10 10:34:50,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52860531] [2024-11-10 10:34:50,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:34:50,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:34:50,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:34:50,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:34:50,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 10:34:50,305 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 54 [2024-11-10 10:34:50,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 47 transitions, 144 flow. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 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) [2024-11-10 10:34:50,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:34:50,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 54 [2024-11-10 10:34:50,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:34:50,449 INFO L124 PetriNetUnfolderBase]: 321/556 cut-off events. [2024-11-10 10:34:50,451 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-10 10:34:50,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1084 conditions, 556 events. 321/556 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2164 event pairs, 169 based on Foata normal form. 0/498 useless extension candidates. Maximal degree in co-relation 1077. Up to 392 conditions per place. [2024-11-10 10:34:50,457 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 45 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2024-11-10 10:34:50,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 59 transitions, 268 flow [2024-11-10 10:34:50,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:34:50,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:34:50,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 112 transitions. [2024-11-10 10:34:50,460 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4148148148148148 [2024-11-10 10:34:50,461 INFO L175 Difference]: Start difference. First operand has 48 places, 47 transitions, 144 flow. Second operand 5 states and 112 transitions. [2024-11-10 10:34:50,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 59 transitions, 268 flow [2024-11-10 10:34:50,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 59 transitions, 256 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-10 10:34:50,463 INFO L231 Difference]: Finished difference. Result has 48 places, 48 transitions, 148 flow [2024-11-10 10:34:50,464 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=148, PETRI_PLACES=48, PETRI_TRANSITIONS=48} [2024-11-10 10:34:50,465 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places. [2024-11-10 10:34:50,466 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 48 transitions, 148 flow [2024-11-10 10:34:50,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 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) [2024-11-10 10:34:50,466 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:34:50,466 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:34:50,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 10:34:50,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:34:50,671 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:34:50,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:34:50,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1808574224, now seen corresponding path program 1 times [2024-11-10 10:34:50,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:34:50,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911272025] [2024-11-10 10:34:50,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:34:50,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:34:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:34:50,904 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 10:34:50,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:34:50,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911272025] [2024-11-10 10:34:50,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911272025] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:34:50,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960106603] [2024-11-10 10:34:50,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:34:50,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:34:50,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:34:50,908 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) [2024-11-10 10:34:50,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 10:34:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:34:51,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 10:34:51,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:34:51,168 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 10:34:51,170 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 10:34:51,286 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 10:34:51,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960106603] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 10:34:51,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 10:34:51,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2024-11-10 10:34:51,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090485220] [2024-11-10 10:34:51,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:34:51,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 10:34:51,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:34:51,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 10:34:51,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-10 10:34:51,333 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-10 10:34:51,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 48 transitions, 148 flow. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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) [2024-11-10 10:34:51,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:34:51,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-10 10:34:51,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:34:51,678 INFO L124 PetriNetUnfolderBase]: 785/1242 cut-off events. [2024-11-10 10:34:51,679 INFO L125 PetriNetUnfolderBase]: For 416/487 co-relation queries the response was YES. [2024-11-10 10:34:51,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2750 conditions, 1242 events. 785/1242 cut-off events. For 416/487 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5652 event pairs, 269 based on Foata normal form. 0/1077 useless extension candidates. Maximal degree in co-relation 2744. Up to 635 conditions per place. [2024-11-10 10:34:51,688 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 86 selfloop transitions, 11 changer transitions 0/106 dead transitions. [2024-11-10 10:34:51,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 106 transitions, 509 flow [2024-11-10 10:34:51,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 10:34:51,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 10:34:51,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 198 transitions. [2024-11-10 10:34:51,691 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4074074074074074 [2024-11-10 10:34:51,691 INFO L175 Difference]: Start difference. First operand has 48 places, 48 transitions, 148 flow. Second operand 9 states and 198 transitions. [2024-11-10 10:34:51,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 106 transitions, 509 flow [2024-11-10 10:34:51,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 106 transitions, 495 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 10:34:51,696 INFO L231 Difference]: Finished difference. Result has 59 places, 56 transitions, 216 flow [2024-11-10 10:34:51,696 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=216, PETRI_PLACES=59, PETRI_TRANSITIONS=56} [2024-11-10 10:34:51,697 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 13 predicate places. [2024-11-10 10:34:51,697 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 56 transitions, 216 flow [2024-11-10 10:34:51,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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) [2024-11-10 10:34:51,697 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:34:51,698 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:34:51,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 10:34:51,898 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,SelfDestructingSolverStorable3 [2024-11-10 10:34:51,899 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:34:51,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:34:51,899 INFO L85 PathProgramCache]: Analyzing trace with hash 526156122, now seen corresponding path program 2 times [2024-11-10 10:34:51,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:34:51,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420006823] [2024-11-10 10:34:51,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:34:51,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:34:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:34:52,134 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 10:34:52,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:34:52,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420006823] [2024-11-10 10:34:52,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420006823] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:34:52,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938147268] [2024-11-10 10:34:52,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 10:34:52,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:34:52,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:34:52,137 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) [2024-11-10 10:34:52,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 10:34:52,246 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 10:34:52,246 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 10:34:52,249 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 10:34:52,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:34:52,332 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-10 10:34:52,332 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 10:34:52,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938147268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:34:52,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 10:34:52,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-11-10 10:34:52,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956053805] [2024-11-10 10:34:52,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:34:52,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:34:52,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:34:52,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:34:52,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-10 10:34:52,352 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 54 [2024-11-10 10:34:52,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 56 transitions, 216 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2024-11-10 10:34:52,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:34:52,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 54 [2024-11-10 10:34:52,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:34:52,865 INFO L124 PetriNetUnfolderBase]: 1427/2164 cut-off events. [2024-11-10 10:34:52,865 INFO L125 PetriNetUnfolderBase]: For 1873/1998 co-relation queries the response was YES. [2024-11-10 10:34:52,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6286 conditions, 2164 events. 1427/2164 cut-off events. For 1873/1998 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 10719 event pairs, 545 based on Foata normal form. 1/1939 useless extension candidates. Maximal degree in co-relation 6275. Up to 1225 conditions per place. [2024-11-10 10:34:52,885 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 71 selfloop transitions, 18 changer transitions 33/135 dead transitions. [2024-11-10 10:34:52,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 135 transitions, 755 flow [2024-11-10 10:34:52,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 10:34:52,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 10:34:52,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 259 transitions. [2024-11-10 10:34:52,888 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47962962962962963 [2024-11-10 10:34:52,888 INFO L175 Difference]: Start difference. First operand has 59 places, 56 transitions, 216 flow. Second operand 10 states and 259 transitions. [2024-11-10 10:34:52,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 135 transitions, 755 flow [2024-11-10 10:34:52,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 135 transitions, 752 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 10:34:52,902 INFO L231 Difference]: Finished difference. Result has 71 places, 71 transitions, 369 flow [2024-11-10 10:34:52,903 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=369, PETRI_PLACES=71, PETRI_TRANSITIONS=71} [2024-11-10 10:34:52,904 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 25 predicate places. [2024-11-10 10:34:52,905 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 71 transitions, 369 flow [2024-11-10 10:34:52,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2024-11-10 10:34:52,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:34:52,906 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:34:52,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 10:34:53,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:34:53,111 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:34:53,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:34:53,112 INFO L85 PathProgramCache]: Analyzing trace with hash -66433808, now seen corresponding path program 3 times [2024-11-10 10:34:53,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:34:53,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664991515] [2024-11-10 10:34:53,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:34:53,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:34:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:34:53,301 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 10:34:53,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:34:53,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664991515] [2024-11-10 10:34:53,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664991515] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:34:53,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430780418] [2024-11-10 10:34:53,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 10:34:53,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:34:53,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:34:53,304 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) [2024-11-10 10:34:53,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 10:34:53,413 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-10 10:34:53,413 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 10:34:53,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 10:34:53,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:34:53,487 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-10 10:34:53,488 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 10:34:53,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430780418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:34:53,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 10:34:53,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-11-10 10:34:53,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257751987] [2024-11-10 10:34:53,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:34:53,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:34:53,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:34:53,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:34:53,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-10 10:34:53,498 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 54 [2024-11-10 10:34:53,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 71 transitions, 369 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2024-11-10 10:34:53,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:34:53,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 54 [2024-11-10 10:34:53,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:34:53,944 INFO L124 PetriNetUnfolderBase]: 1444/2216 cut-off events. [2024-11-10 10:34:53,945 INFO L125 PetriNetUnfolderBase]: For 4857/5018 co-relation queries the response was YES. [2024-11-10 10:34:53,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7776 conditions, 2216 events. 1444/2216 cut-off events. For 4857/5018 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 11320 event pairs, 535 based on Foata normal form. 33/2179 useless extension candidates. Maximal degree in co-relation 7760. Up to 1279 conditions per place. [2024-11-10 10:34:53,963 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 73 selfloop transitions, 23 changer transitions 26/135 dead transitions. [2024-11-10 10:34:53,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 135 transitions, 894 flow [2024-11-10 10:34:53,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 10:34:53,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 10:34:53,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 237 transitions. [2024-11-10 10:34:53,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4876543209876543 [2024-11-10 10:34:53,965 INFO L175 Difference]: Start difference. First operand has 71 places, 71 transitions, 369 flow. Second operand 9 states and 237 transitions. [2024-11-10 10:34:53,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 135 transitions, 894 flow [2024-11-10 10:34:53,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 135 transitions, 884 flow, removed 5 selfloop flow, removed 1 redundant places. [2024-11-10 10:34:53,984 INFO L231 Difference]: Finished difference. Result has 80 places, 79 transitions, 511 flow [2024-11-10 10:34:53,984 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=511, PETRI_PLACES=80, PETRI_TRANSITIONS=79} [2024-11-10 10:34:53,985 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 34 predicate places. [2024-11-10 10:34:53,985 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 79 transitions, 511 flow [2024-11-10 10:34:53,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2024-11-10 10:34:53,986 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:34:53,989 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:34:54,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 10:34:54,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:34:54,190 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:34:54,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:34:54,190 INFO L85 PathProgramCache]: Analyzing trace with hash -249068626, now seen corresponding path program 4 times [2024-11-10 10:34:54,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:34:54,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107568397] [2024-11-10 10:34:54,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:34:54,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:34:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:34:54,379 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 10:34:54,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:34:54,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107568397] [2024-11-10 10:34:54,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107568397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:34:54,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782744609] [2024-11-10 10:34:54,380 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-10 10:34:54,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:34:54,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:34:54,382 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 10:34:54,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 10:34:54,474 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-10 10:34:54,474 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 10:34:54,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 10:34:54,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:34:54,540 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 10:34:54,540 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 10:34:54,607 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 10:34:54,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782744609] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 10:34:54,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 10:34:54,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-10 10:34:54,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799969817] [2024-11-10 10:34:54,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 10:34:54,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 10:34:54,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:34:54,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 10:34:54,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-10 10:34:54,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2024-11-10 10:34:54,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 79 transitions, 511 flow. Second operand has 13 states, 13 states have (on average 15.384615384615385) internal successors, (200), 13 states have internal predecessors, (200), 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) [2024-11-10 10:34:54,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:34:54,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2024-11-10 10:34:54,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:34:55,362 INFO L124 PetriNetUnfolderBase]: 1730/2675 cut-off events. [2024-11-10 10:34:55,363 INFO L125 PetriNetUnfolderBase]: For 9625/9645 co-relation queries the response was YES. [2024-11-10 10:34:55,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10519 conditions, 2675 events. 1730/2675 cut-off events. For 9625/9645 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 13491 event pairs, 343 based on Foata normal form. 22/2459 useless extension candidates. Maximal degree in co-relation 10497. Up to 822 conditions per place. [2024-11-10 10:34:55,389 INFO L140 encePairwiseOnDemand]: 42/54 looper letters, 135 selfloop transitions, 55 changer transitions 0/198 dead transitions. [2024-11-10 10:34:55,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 198 transitions, 1632 flow [2024-11-10 10:34:55,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 10:34:55,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-10 10:34:55,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 305 transitions. [2024-11-10 10:34:55,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35300925925925924 [2024-11-10 10:34:55,392 INFO L175 Difference]: Start difference. First operand has 80 places, 79 transitions, 511 flow. Second operand 16 states and 305 transitions. [2024-11-10 10:34:55,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 198 transitions, 1632 flow [2024-11-10 10:34:55,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 198 transitions, 1542 flow, removed 24 selfloop flow, removed 3 redundant places. [2024-11-10 10:34:55,411 INFO L231 Difference]: Finished difference. Result has 99 places, 114 transitions, 954 flow [2024-11-10 10:34:55,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=954, PETRI_PLACES=99, PETRI_TRANSITIONS=114} [2024-11-10 10:34:55,412 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 53 predicate places. [2024-11-10 10:34:55,412 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 114 transitions, 954 flow [2024-11-10 10:34:55,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 15.384615384615385) internal successors, (200), 13 states have internal predecessors, (200), 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) [2024-11-10 10:34:55,412 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:34:55,412 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:34:55,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 10:34:55,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:34:55,613 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:34:55,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:34:55,614 INFO L85 PathProgramCache]: Analyzing trace with hash 2132875176, now seen corresponding path program 5 times [2024-11-10 10:34:55,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:34:55,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254316509] [2024-11-10 10:34:55,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:34:55,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:34:55,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:34:55,806 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 10:34:55,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:34:55,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254316509] [2024-11-10 10:34:55,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254316509] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:34:55,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312577653] [2024-11-10 10:34:55,809 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-10 10:34:55,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:34:55,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:34:55,812 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 10:34:55,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 10:34:55,923 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 10:34:55,923 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 10:34:55,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 10:34:55,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:34:56,023 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 10:34:56,024 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 10:34:56,100 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 10:34:56,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312577653] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 10:34:56,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 10:34:56,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-11-10 10:34:56,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090797120] [2024-11-10 10:34:56,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 10:34:56,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 10:34:56,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:34:56,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 10:34:56,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-10 10:34:56,175 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2024-11-10 10:34:56,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 114 transitions, 954 flow. Second operand has 14 states, 14 states have (on average 15.714285714285714) internal successors, (220), 14 states have internal predecessors, (220), 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) [2024-11-10 10:34:56,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:34:56,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2024-11-10 10:34:56,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:34:57,000 INFO L124 PetriNetUnfolderBase]: 1693/2654 cut-off events. [2024-11-10 10:34:57,000 INFO L125 PetriNetUnfolderBase]: For 16448/16448 co-relation queries the response was YES. [2024-11-10 10:34:57,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11821 conditions, 2654 events. 1693/2654 cut-off events. For 16448/16448 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 13649 event pairs, 398 based on Foata normal form. 23/2452 useless extension candidates. Maximal degree in co-relation 11791. Up to 978 conditions per place. [2024-11-10 10:34:57,025 INFO L140 encePairwiseOnDemand]: 41/54 looper letters, 103 selfloop transitions, 85 changer transitions 0/196 dead transitions. [2024-11-10 10:34:57,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 196 transitions, 1894 flow [2024-11-10 10:34:57,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 10:34:57,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 10:34:57,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 272 transitions. [2024-11-10 10:34:57,027 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35978835978835977 [2024-11-10 10:34:57,027 INFO L175 Difference]: Start difference. First operand has 99 places, 114 transitions, 954 flow. Second operand 14 states and 272 transitions. [2024-11-10 10:34:57,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 196 transitions, 1894 flow [2024-11-10 10:34:57,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 196 transitions, 1881 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-10 10:34:57,064 INFO L231 Difference]: Finished difference. Result has 115 places, 149 transitions, 1522 flow [2024-11-10 10:34:57,064 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=925, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1522, PETRI_PLACES=115, PETRI_TRANSITIONS=149} [2024-11-10 10:34:57,065 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 69 predicate places. [2024-11-10 10:34:57,065 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 149 transitions, 1522 flow [2024-11-10 10:34:57,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 15.714285714285714) internal successors, (220), 14 states have internal predecessors, (220), 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) [2024-11-10 10:34:57,065 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:34:57,066 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:34:57,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-10 10:34:57,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:34:57,267 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:34:57,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:34:57,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1781137838, now seen corresponding path program 6 times [2024-11-10 10:34:57,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:34:57,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306007980] [2024-11-10 10:34:57,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:34:57,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:34:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:34:57,441 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 10:34:57,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:34:57,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306007980] [2024-11-10 10:34:57,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306007980] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:34:57,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190344816] [2024-11-10 10:34:57,442 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-10 10:34:57,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:34:57,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:34:57,444 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 10:34:57,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 10:34:57,554 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-10 10:34:57,554 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 10:34:57,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 10:34:57,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:34:57,615 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-10 10:34:57,616 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 10:34:57,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190344816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:34:57,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 10:34:57,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-11-10 10:34:57,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015405095] [2024-11-10 10:34:57,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:34:57,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:34:57,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:34:57,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:34:57,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-10 10:34:57,628 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 54 [2024-11-10 10:34:57,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 149 transitions, 1522 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2024-11-10 10:34:57,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:34:57,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 54 [2024-11-10 10:34:57,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:34:58,138 INFO L124 PetriNetUnfolderBase]: 1381/2209 cut-off events. [2024-11-10 10:34:58,138 INFO L125 PetriNetUnfolderBase]: For 17682/17784 co-relation queries the response was YES. [2024-11-10 10:34:58,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10703 conditions, 2209 events. 1381/2209 cut-off events. For 17682/17784 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 11836 event pairs, 508 based on Foata normal form. 5/2097 useless extension candidates. Maximal degree in co-relation 10667. Up to 1355 conditions per place. [2024-11-10 10:34:58,165 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 115 selfloop transitions, 47 changer transitions 35/210 dead transitions. [2024-11-10 10:34:58,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 210 transitions, 2310 flow [2024-11-10 10:34:58,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 10:34:58,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 10:34:58,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 236 transitions. [2024-11-10 10:34:58,169 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48559670781893005 [2024-11-10 10:34:58,169 INFO L175 Difference]: Start difference. First operand has 115 places, 149 transitions, 1522 flow. Second operand 9 states and 236 transitions. [2024-11-10 10:34:58,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 210 transitions, 2310 flow [2024-11-10 10:34:58,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 210 transitions, 2253 flow, removed 26 selfloop flow, removed 3 redundant places. [2024-11-10 10:34:58,220 INFO L231 Difference]: Finished difference. Result has 124 places, 150 transitions, 1617 flow [2024-11-10 10:34:58,221 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=1465, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1617, PETRI_PLACES=124, PETRI_TRANSITIONS=150} [2024-11-10 10:34:58,222 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 78 predicate places. [2024-11-10 10:34:58,223 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 150 transitions, 1617 flow [2024-11-10 10:34:58,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2024-11-10 10:34:58,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:34:58,223 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:34:58,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 10:34:58,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:34:58,425 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:34:58,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:34:58,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1635708041, now seen corresponding path program 1 times [2024-11-10 10:34:58,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:34:58,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866831650] [2024-11-10 10:34:58,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:34:58,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:34:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:35:00,117 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 10:35:00,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:35:00,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866831650] [2024-11-10 10:35:00,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866831650] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:35:00,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997621833] [2024-11-10 10:35:00,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:35:00,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:35:00,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:35:00,120 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 10:35:00,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 10:35:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:35:00,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-10 10:35:00,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:35:00,274 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 [2024-11-10 10:35:00,376 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-10 10:35:00,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-10 10:35:00,474 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2024-11-10 10:35:00,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2024-11-10 10:35:00,603 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2024-11-10 10:35:00,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2024-11-10 10:35:00,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2024-11-10 10:35:01,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 36 [2024-11-10 10:35:01,580 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 10:35:01,580 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 10:35:44,745 INFO L349 Elim1Store]: treesize reduction 102, result has 71.5 percent of original size [2024-11-10 10:35:44,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 3414 treesize of output 1749 [2024-11-10 10:35:44,909 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 10:35:44,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1523 treesize of output 1433 [2024-11-10 10:35:45,196 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-10 10:35:45,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 9 [2024-11-10 10:35:45,939 INFO L349 Elim1Store]: treesize reduction 8, result has 86.0 percent of original size [2024-11-10 10:35:45,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 78 [2024-11-10 10:35:46,357 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-10 10:35:46,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 17 [2024-11-10 10:35:46,528 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-10 10:35:46,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 17