./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/queue_longer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/queue_longer.i -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 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:22:37,158 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:22:37,250 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:22:37,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:22:37,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:22:37,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:22:37,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:22:37,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:22:37,293 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:22:37,294 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:22:37,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:22:37,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:22:37,295 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:22:37,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:22:37,297 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:22:37,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:22:37,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:22:37,298 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:22:37,299 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:22:37,299 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:22:37,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:22:37,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:22:37,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:22:37,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:22:37,303 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:22:37,304 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:22:37,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:22:37,304 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:22:37,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:22:37,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:22:37,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:22:37,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:22:37,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:22:37,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:22:37,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:22:37,307 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:22:37,307 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:22:37,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:22:37,308 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:22:37,308 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:22:37,308 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:22:37,309 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:22:37,309 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 [2024-11-09 02:22:37,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:22:37,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:22:37,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:22:37,593 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:22:37,593 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:22:37,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/queue_longer.i [2024-11-09 02:22:38,985 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:22:39,247 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:22:39,251 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longer.i [2024-11-09 02:22:39,267 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdbdb73c9/d5e6dfa4791f4af9ad998789d508e4f2/FLAGdc6335eda [2024-11-09 02:22:39,565 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdbdb73c9/d5e6dfa4791f4af9ad998789d508e4f2 [2024-11-09 02:22:39,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:22:39,568 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:22:39,569 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:22:39,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:22:39,573 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:22:39,574 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:22:39" (1/1) ... [2024-11-09 02:22:39,575 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@482e339e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:22:39, skipping insertion in model container [2024-11-09 02:22:39,575 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:22:39" (1/1) ... [2024-11-09 02:22:39,624 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:22:40,077 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/pthread/queue_longer.i[43296,43309] [2024-11-09 02:22:40,084 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/pthread/queue_longer.i[43503,43516] [2024-11-09 02:22:40,087 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/pthread/queue_longer.i[43783,43796] [2024-11-09 02:22:40,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:22:40,137 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:22:40,207 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/pthread/queue_longer.i[43296,43309] [2024-11-09 02:22:40,209 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/pthread/queue_longer.i[43503,43516] [2024-11-09 02:22:40,213 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/pthread/queue_longer.i[43783,43796] [2024-11-09 02:22:40,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:22:40,413 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:22:40,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:22:40 WrapperNode [2024-11-09 02:22:40,414 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:22:40,415 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:22:40,415 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:22:40,416 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:22:40,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:22:40" (1/1) ... [2024-11-09 02:22:40,468 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:22:40" (1/1) ... [2024-11-09 02:22:40,564 INFO L138 Inliner]: procedures = 274, calls = 856, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 1040 [2024-11-09 02:22:40,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:22:40,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:22:40,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:22:40,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:22:40,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:22:40" (1/1) ... [2024-11-09 02:22:40,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:22:40" (1/1) ... [2024-11-09 02:22:40,590 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:22:40" (1/1) ... [2024-11-09 02:22:40,638 INFO L175 MemorySlicer]: Split 844 memory accesses to 4 slices as follows [2, 5, 403, 434]. 51 percent of accesses are in the largest equivalence class. The 810 initializations are split as follows [2, 5, 400, 403]. The 16 writes are split as follows [0, 0, 2, 14]. [2024-11-09 02:22:40,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:22:40" (1/1) ... [2024-11-09 02:22:40,643 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:22:40" (1/1) ... [2024-11-09 02:22:40,681 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:22:40" (1/1) ... [2024-11-09 02:22:40,687 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:22:40" (1/1) ... [2024-11-09 02:22:40,699 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:22:40" (1/1) ... [2024-11-09 02:22:40,707 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:22:40" (1/1) ... [2024-11-09 02:22:40,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:22:40,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:22:40,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:22:40,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:22:40,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:22:40" (1/1) ... [2024-11-09 02:22:40,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:22:40,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:22:40,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 02:22:40,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 02:22:40,824 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-09 02:22:40,825 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-09 02:22:40,825 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-09 02:22:40,826 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-09 02:22:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 02:22:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 02:22:40,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 02:22:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 02:22:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 02:22:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 02:22:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 02:22:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 02:22:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 02:22:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 02:22:40,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:22:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:22:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 02:22:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 02:22:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 02:22:40,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:22:40,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:22:40,830 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 02:22:41,024 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:22:41,027 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:22:42,279 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:22:42,279 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:22:49,308 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:22:49,308 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 02:22:49,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:22:49 BoogieIcfgContainer [2024-11-09 02:22:49,309 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:22:49,312 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:22:49,314 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:22:49,317 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:22:49,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:22:39" (1/3) ... [2024-11-09 02:22:49,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55bd5769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:22:49, skipping insertion in model container [2024-11-09 02:22:49,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:22:40" (2/3) ... [2024-11-09 02:22:49,318 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55bd5769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:22:49, skipping insertion in model container [2024-11-09 02:22:49,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:22:49" (3/3) ... [2024-11-09 02:22:49,321 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longer.i [2024-11-09 02:22:49,339 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:22:49,339 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-09 02:22:49,340 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:22:49,428 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 02:22:49,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 47 transitions, 108 flow [2024-11-09 02:22:49,548 INFO L124 PetriNetUnfolderBase]: 7/45 cut-off events. [2024-11-09 02:22:49,549 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 02:22:49,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 45 events. 7/45 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-11-09 02:22:49,553 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 47 transitions, 108 flow [2024-11-09 02:22:49,558 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 43 transitions, 95 flow [2024-11-09 02:22:49,574 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:22:49,582 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;@4d651bda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:22:49,583 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-09 02:22:49,630 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:22:49,630 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-11-09 02:22:49,631 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:22:49,631 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:22:49,632 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-09 02:22:49,632 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 4 more)] === [2024-11-09 02:22:49,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:22:49,638 INFO L85 PathProgramCache]: Analyzing trace with hash 2224825, now seen corresponding path program 1 times [2024-11-09 02:22:49,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:22:49,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753674423] [2024-11-09 02:22:49,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:22:49,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:22:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:22:50,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:22:50,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:22:50,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753674423] [2024-11-09 02:22:50,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753674423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:22:50,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:22:50,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 02:22:50,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652794794] [2024-11-09 02:22:50,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:22:50,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 02:22:50,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:22:50,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 02:22:50,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 02:22:50,188 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2024-11-09 02:22:50,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 43 transitions, 95 flow. Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:22:50,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:22:50,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2024-11-09 02:22:50,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:22:50,590 INFO L124 PetriNetUnfolderBase]: 425/768 cut-off events. [2024-11-09 02:22:50,590 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-11-09 02:22:50,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1502 conditions, 768 events. 425/768 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3474 event pairs, 331 based on Foata normal form. 47/726 useless extension candidates. Maximal degree in co-relation 1440. Up to 694 conditions per place. [2024-11-09 02:22:50,599 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 31 selfloop transitions, 0 changer transitions 0/38 dead transitions. [2024-11-09 02:22:50,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 38 transitions, 147 flow [2024-11-09 02:22:50,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 02:22:50,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 02:22:50,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 54 transitions. [2024-11-09 02:22:50,611 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.574468085106383 [2024-11-09 02:22:50,613 INFO L175 Difference]: Start difference. First operand has 43 places, 43 transitions, 95 flow. Second operand 2 states and 54 transitions. [2024-11-09 02:22:50,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 38 transitions, 147 flow [2024-11-09 02:22:50,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 38 transitions, 142 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 02:22:50,619 INFO L231 Difference]: Finished difference. Result has 39 places, 38 transitions, 80 flow [2024-11-09 02:22:50,622 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=80, PETRI_PLACES=39, PETRI_TRANSITIONS=38} [2024-11-09 02:22:50,627 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -4 predicate places. [2024-11-09 02:22:50,628 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 38 transitions, 80 flow [2024-11-09 02:22:50,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:22:50,629 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:22:50,629 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:22:50,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:22:50,629 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:22:50,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:22:50,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1592744654, now seen corresponding path program 1 times [2024-11-09 02:22:50,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:22:50,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077697108] [2024-11-09 02:22:50,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:22:50,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:22:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:22:50,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:22:50,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:22:50,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077697108] [2024-11-09 02:22:50,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077697108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:22:50,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:22:50,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 02:22:50,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906621657] [2024-11-09 02:22:50,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:22:50,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:22:50,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:22:50,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:22:50,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:22:50,936 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2024-11-09 02:22:50,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 38 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:22:50,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:22:50,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2024-11-09 02:22:50,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:22:51,335 INFO L124 PetriNetUnfolderBase]: 405/748 cut-off events. [2024-11-09 02:22:51,335 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-09 02:22:51,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1451 conditions, 748 events. 405/748 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3491 event pairs, 304 based on Foata normal form. 0/680 useless extension candidates. Maximal degree in co-relation 1448. Up to 624 conditions per place. [2024-11-09 02:22:51,341 INFO L140 encePairwiseOnDemand]: 44/47 looper letters, 40 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2024-11-09 02:22:51,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 49 transitions, 188 flow [2024-11-09 02:22:51,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:22:51,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 02:22:51,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-09 02:22:51,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5177304964539007 [2024-11-09 02:22:51,344 INFO L175 Difference]: Start difference. First operand has 39 places, 38 transitions, 80 flow. Second operand 3 states and 73 transitions. [2024-11-09 02:22:51,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 49 transitions, 188 flow [2024-11-09 02:22:51,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 49 transitions, 188 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 02:22:51,346 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 82 flow [2024-11-09 02:22:51,347 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2024-11-09 02:22:51,347 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -2 predicate places. [2024-11-09 02:22:51,348 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 82 flow [2024-11-09 02:22:51,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:22:51,348 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:22:51,348 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:22:51,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:22:51,349 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:22:51,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:22:51,350 INFO L85 PathProgramCache]: Analyzing trace with hash 2130447266, now seen corresponding path program 1 times [2024-11-09 02:22:51,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:22:51,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533619647] [2024-11-09 02:22:51,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:22:51,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:22:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:22:52,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:22:52,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:22:52,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533619647] [2024-11-09 02:22:52,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533619647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:22:52,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:22:52,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:22:52,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132014068] [2024-11-09 02:22:52,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:22:52,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:22:52,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:22:52,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:22:52,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:22:52,813 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2024-11-09 02:22:52,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:22:52,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:22:52,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2024-11-09 02:22:52,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:22:53,632 INFO L124 PetriNetUnfolderBase]: 674/1239 cut-off events. [2024-11-09 02:22:53,632 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-09 02:22:53,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2425 conditions, 1239 events. 674/1239 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6161 event pairs, 74 based on Foata normal form. 0/1178 useless extension candidates. Maximal degree in co-relation 2421. Up to 658 conditions per place. [2024-11-09 02:22:53,638 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 71 selfloop transitions, 10 changer transitions 3/91 dead transitions. [2024-11-09 02:22:53,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 91 transitions, 371 flow [2024-11-09 02:22:53,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:22:53,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 02:22:53,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 146 transitions. [2024-11-09 02:22:53,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5177304964539007 [2024-11-09 02:22:53,641 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 82 flow. Second operand 6 states and 146 transitions. [2024-11-09 02:22:53,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 91 transitions, 371 flow [2024-11-09 02:22:53,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 91 transitions, 361 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 02:22:53,644 INFO L231 Difference]: Finished difference. Result has 47 places, 47 transitions, 146 flow [2024-11-09 02:22:53,644 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=146, PETRI_PLACES=47, PETRI_TRANSITIONS=47} [2024-11-09 02:22:53,645 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 4 predicate places. [2024-11-09 02:22:53,645 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 47 transitions, 146 flow [2024-11-09 02:22:53,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:22:53,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:22:53,645 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:22:53,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:22:53,646 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:22:53,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:22:53,646 INFO L85 PathProgramCache]: Analyzing trace with hash 147324961, now seen corresponding path program 1 times [2024-11-09 02:22:53,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:22:53,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406961734] [2024-11-09 02:22:53,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:22:53,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:22:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:22:53,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:22:53,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:22:53,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406961734] [2024-11-09 02:22:53,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406961734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:22:53,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:22:53,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 02:22:53,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382184517] [2024-11-09 02:22:53,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:22:53,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:22:53,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:22:53,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:22:53,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:22:53,904 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2024-11-09 02:22:53,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 47 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:22:53,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:22:53,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2024-11-09 02:22:53,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:22:54,181 INFO L124 PetriNetUnfolderBase]: 421/812 cut-off events. [2024-11-09 02:22:54,181 INFO L125 PetriNetUnfolderBase]: For 151/154 co-relation queries the response was YES. [2024-11-09 02:22:54,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1678 conditions, 812 events. 421/812 cut-off events. For 151/154 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3544 event pairs, 215 based on Foata normal form. 28/816 useless extension candidates. Maximal degree in co-relation 1671. Up to 417 conditions per place. [2024-11-09 02:22:54,185 INFO L140 encePairwiseOnDemand]: 43/47 looper letters, 37 selfloop transitions, 4 changer transitions 3/50 dead transitions. [2024-11-09 02:22:54,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 50 transitions, 217 flow [2024-11-09 02:22:54,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:22:54,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 02:22:54,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2024-11-09 02:22:54,187 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.524822695035461 [2024-11-09 02:22:54,187 INFO L175 Difference]: Start difference. First operand has 47 places, 47 transitions, 146 flow. Second operand 3 states and 74 transitions. [2024-11-09 02:22:54,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 50 transitions, 217 flow [2024-11-09 02:22:54,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 50 transitions, 211 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 02:22:54,189 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 108 flow [2024-11-09 02:22:54,189 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2024-11-09 02:22:54,190 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2024-11-09 02:22:54,190 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 108 flow [2024-11-09 02:22:54,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:22:54,191 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:22:54,191 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:22:54,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:22:54,191 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:22:54,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:22:54,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1933850492, now seen corresponding path program 1 times [2024-11-09 02:22:54,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:22:54,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142102599] [2024-11-09 02:22:54,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:22:54,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:22:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:22:54,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:22:54,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:22:54,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142102599] [2024-11-09 02:22:54,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142102599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:22:54,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:22:54,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 02:22:54,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23621845] [2024-11-09 02:22:54,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:22:54,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:22:54,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:22:54,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:22:54,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:22:54,471 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2024-11-09 02:22:54,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:22:54,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:22:54,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2024-11-09 02:22:54,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:22:54,689 INFO L124 PetriNetUnfolderBase]: 249/544 cut-off events. [2024-11-09 02:22:54,690 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2024-11-09 02:22:54,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 544 events. 249/544 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2170 event pairs, 85 based on Foata normal form. 32/566 useless extension candidates. Maximal degree in co-relation 1123. Up to 252 conditions per place. [2024-11-09 02:22:54,693 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 34 selfloop transitions, 6 changer transitions 0/46 dead transitions. [2024-11-09 02:22:54,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 46 transitions, 211 flow [2024-11-09 02:22:54,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:22:54,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 02:22:54,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-11-09 02:22:54,694 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5035460992907801 [2024-11-09 02:22:54,695 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 108 flow. Second operand 3 states and 71 transitions. [2024-11-09 02:22:54,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 46 transitions, 211 flow [2024-11-09 02:22:54,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 46 transitions, 201 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-09 02:22:54,697 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 110 flow [2024-11-09 02:22:54,698 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2024-11-09 02:22:54,698 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2024-11-09 02:22:54,698 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 110 flow [2024-11-09 02:22:54,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:22:54,699 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:22:54,699 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:22:54,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 02:22:54,699 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:22:54,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:22:54,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1438679454, now seen corresponding path program 1 times [2024-11-09 02:22:54,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:22:54,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253168429] [2024-11-09 02:22:54,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:22:54,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:22:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:22:59,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:22:59,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:22:59,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253168429] [2024-11-09 02:22:59,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253168429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:22:59,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:22:59,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 02:22:59,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105247800] [2024-11-09 02:22:59,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:22:59,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 02:22:59,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:22:59,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 02:22:59,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-09 02:22:59,742 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2024-11-09 02:22:59,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 110 flow. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:22:59,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:22:59,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2024-11-09 02:22:59,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:23:00,357 INFO L124 PetriNetUnfolderBase]: 357/783 cut-off events. [2024-11-09 02:23:00,357 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2024-11-09 02:23:00,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1705 conditions, 783 events. 357/783 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3771 event pairs, 76 based on Foata normal form. 0/770 useless extension candidates. Maximal degree in co-relation 1698. Up to 264 conditions per place. [2024-11-09 02:23:00,362 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 65 selfloop transitions, 14 changer transitions 8/93 dead transitions. [2024-11-09 02:23:00,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 93 transitions, 455 flow [2024-11-09 02:23:00,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 02:23:00,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 02:23:00,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 177 transitions. [2024-11-09 02:23:00,364 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41843971631205673 [2024-11-09 02:23:00,364 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 110 flow. Second operand 9 states and 177 transitions. [2024-11-09 02:23:00,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 93 transitions, 455 flow [2024-11-09 02:23:00,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 93 transitions, 433 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 02:23:00,369 INFO L231 Difference]: Finished difference. Result has 55 places, 46 transitions, 202 flow [2024-11-09 02:23:00,370 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=202, PETRI_PLACES=55, PETRI_TRANSITIONS=46} [2024-11-09 02:23:00,371 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 12 predicate places. [2024-11-09 02:23:00,372 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 46 transitions, 202 flow [2024-11-09 02:23:00,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:23:00,372 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:23:00,373 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:23:00,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 02:23:00,373 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:23:00,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:23:00,374 INFO L85 PathProgramCache]: Analyzing trace with hash -2120449762, now seen corresponding path program 2 times [2024-11-09 02:23:00,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:23:00,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216567043] [2024-11-09 02:23:00,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:23:00,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:23:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:23:03,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:23:03,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:23:03,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216567043] [2024-11-09 02:23:03,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216567043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:23:03,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:23:03,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 02:23:03,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306061206] [2024-11-09 02:23:03,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:23:03,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 02:23:03,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:23:03,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 02:23:03,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 02:23:03,997 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2024-11-09 02:23:03,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 46 transitions, 202 flow. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:23:03,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:23:03,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2024-11-09 02:23:03,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:23:04,760 INFO L124 PetriNetUnfolderBase]: 466/1037 cut-off events. [2024-11-09 02:23:04,760 INFO L125 PetriNetUnfolderBase]: For 797/799 co-relation queries the response was YES. [2024-11-09 02:23:04,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2692 conditions, 1037 events. 466/1037 cut-off events. For 797/799 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5746 event pairs, 131 based on Foata normal form. 0/1019 useless extension candidates. Maximal degree in co-relation 2679. Up to 607 conditions per place. [2024-11-09 02:23:04,773 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 69 selfloop transitions, 15 changer transitions 4/94 dead transitions. [2024-11-09 02:23:04,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 94 transitions, 568 flow [2024-11-09 02:23:04,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 02:23:04,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 02:23:04,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 167 transitions. [2024-11-09 02:23:04,776 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3947990543735225 [2024-11-09 02:23:04,776 INFO L175 Difference]: Start difference. First operand has 55 places, 46 transitions, 202 flow. Second operand 9 states and 167 transitions. [2024-11-09 02:23:04,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 94 transitions, 568 flow [2024-11-09 02:23:04,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 94 transitions, 550 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-09 02:23:04,788 INFO L231 Difference]: Finished difference. Result has 66 places, 60 transitions, 347 flow [2024-11-09 02:23:04,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=347, PETRI_PLACES=66, PETRI_TRANSITIONS=60} [2024-11-09 02:23:04,789 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 23 predicate places. [2024-11-09 02:23:04,790 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 60 transitions, 347 flow [2024-11-09 02:23:04,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:23:04,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:23:04,790 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:23:04,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 02:23:04,791 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:23:04,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:23:04,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1800930064, now seen corresponding path program 3 times [2024-11-09 02:23:04,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:23:04,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792192096] [2024-11-09 02:23:04,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:23:04,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:23:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:23:08,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:23:08,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:23:08,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792192096] [2024-11-09 02:23:08,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792192096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:23:08,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:23:08,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 02:23:08,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525928525] [2024-11-09 02:23:08,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:23:08,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 02:23:08,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:23:08,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 02:23:08,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 02:23:08,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2024-11-09 02:23:08,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 60 transitions, 347 flow. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:23:08,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:23:08,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2024-11-09 02:23:08,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:23:09,078 INFO L124 PetriNetUnfolderBase]: 538/1159 cut-off events. [2024-11-09 02:23:09,078 INFO L125 PetriNetUnfolderBase]: For 1569/1570 co-relation queries the response was YES. [2024-11-09 02:23:09,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3314 conditions, 1159 events. 538/1159 cut-off events. For 1569/1570 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 6225 event pairs, 52 based on Foata normal form. 22/1166 useless extension candidates. Maximal degree in co-relation 3295. Up to 293 conditions per place. [2024-11-09 02:23:09,090 INFO L140 encePairwiseOnDemand]: 36/47 looper letters, 89 selfloop transitions, 32 changer transitions 2/129 dead transitions. [2024-11-09 02:23:09,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 129 transitions, 860 flow [2024-11-09 02:23:09,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 02:23:09,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-09 02:23:09,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 229 transitions. [2024-11-09 02:23:09,092 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40602836879432624 [2024-11-09 02:23:09,092 INFO L175 Difference]: Start difference. First operand has 66 places, 60 transitions, 347 flow. Second operand 12 states and 229 transitions. [2024-11-09 02:23:09,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 129 transitions, 860 flow [2024-11-09 02:23:09,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 129 transitions, 812 flow, removed 24 selfloop flow, removed 0 redundant places. [2024-11-09 02:23:09,104 INFO L231 Difference]: Finished difference. Result has 82 places, 69 transitions, 480 flow [2024-11-09 02:23:09,104 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=480, PETRI_PLACES=82, PETRI_TRANSITIONS=69} [2024-11-09 02:23:09,104 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 39 predicate places. [2024-11-09 02:23:09,105 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 69 transitions, 480 flow [2024-11-09 02:23:09,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:23:09,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:23:09,105 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:23:09,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 02:23:09,108 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:23:09,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:23:09,109 INFO L85 PathProgramCache]: Analyzing trace with hash 623361774, now seen corresponding path program 4 times [2024-11-09 02:23:09,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:23:09,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208600259] [2024-11-09 02:23:09,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:23:09,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:23:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:23:11,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:23:11,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:23:11,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208600259] [2024-11-09 02:23:11,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208600259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:23:11,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:23:11,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 02:23:11,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72493966] [2024-11-09 02:23:11,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:23:11,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 02:23:11,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:23:11,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 02:23:11,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-09 02:23:11,677 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 47 [2024-11-09 02:23:11,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 69 transitions, 480 flow. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:23:11,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:23:11,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 47 [2024-11-09 02:23:11,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:23:12,528 INFO L124 PetriNetUnfolderBase]: 612/1334 cut-off events. [2024-11-09 02:23:12,529 INFO L125 PetriNetUnfolderBase]: For 3080/3080 co-relation queries the response was YES. [2024-11-09 02:23:12,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4268 conditions, 1334 events. 612/1334 cut-off events. For 3080/3080 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7426 event pairs, 133 based on Foata normal form. 0/1319 useless extension candidates. Maximal degree in co-relation 4243. Up to 652 conditions per place. [2024-11-09 02:23:12,544 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 88 selfloop transitions, 22 changer transitions 2/118 dead transitions. [2024-11-09 02:23:12,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 118 transitions, 940 flow [2024-11-09 02:23:12,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 02:23:12,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 02:23:12,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 174 transitions. [2024-11-09 02:23:12,547 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41134751773049644 [2024-11-09 02:23:12,547 INFO L175 Difference]: Start difference. First operand has 82 places, 69 transitions, 480 flow. Second operand 9 states and 174 transitions. [2024-11-09 02:23:12,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 118 transitions, 940 flow [2024-11-09 02:23:12,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 118 transitions, 868 flow, removed 18 selfloop flow, removed 5 redundant places. [2024-11-09 02:23:12,559 INFO L231 Difference]: Finished difference. Result has 90 places, 80 transitions, 621 flow [2024-11-09 02:23:12,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=621, PETRI_PLACES=90, PETRI_TRANSITIONS=80} [2024-11-09 02:23:12,561 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 47 predicate places. [2024-11-09 02:23:12,561 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 80 transitions, 621 flow [2024-11-09 02:23:12,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:23:12,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:23:12,562 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] [2024-11-09 02:23:12,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 02:23:12,562 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:23:12,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:23:12,563 INFO L85 PathProgramCache]: Analyzing trace with hash 319539240, now seen corresponding path program 1 times [2024-11-09 02:23:12,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:23:12,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75456628] [2024-11-09 02:23:12,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:23:12,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:23:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:23:15,525 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:23:15,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:23:15,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75456628] [2024-11-09 02:23:15,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75456628] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:23:15,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280308569] [2024-11-09 02:23:15,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:23:15,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:23:15,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:23:15,529 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:23:15,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 02:23:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:23:15,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 1858 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-09 02:23:15,897 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:23:15,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2024-11-09 02:23:16,104 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 02:23:16,105 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 3 case distinctions, treesize of input 43 treesize of output 31 [2024-11-09 02:23:16,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 02:23:16,442 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 02:23:16,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 51 [2024-11-09 02:23:16,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-09 02:23:17,038 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 02:23:17,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 25 [2024-11-09 02:23:17,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-09 02:23:17,049 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:23:17,049 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:23:17,772 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 02:23:17,773 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 22 [2024-11-09 02:23:17,790 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-11-09 02:23:17,791 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 18 [2024-11-09 02:23:29,162 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-11-09 02:23:29,163 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 18 [2024-11-09 02:23:29,199 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 02:23:29,199 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 22