./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-races/race-2_1-container_of.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/ldv-races/race-2_1-container_of.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 edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:33:42,373 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:33:42,443 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:33:42,450 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:33:42,451 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:33:42,494 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:33:42,494 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:33:42,495 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:33:42,495 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:33:42,496 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:33:42,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:33:42,496 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:33:42,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:33:42,497 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:33:42,498 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:33:42,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:33:42,500 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:33:42,500 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:33:42,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:33:42,501 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:33:42,501 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:33:42,505 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:33:42,505 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:33:42,506 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:33:42,506 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:33:42,506 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:33:42,506 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:33:42,507 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:33:42,507 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:33:42,507 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:33:42,508 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:33:42,508 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:33:42,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:33:42,509 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:33:42,509 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:33:42,509 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:33:42,510 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:33:42,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:33:42,510 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:33:42,510 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:33:42,510 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:33:42,511 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:33:42,511 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edceb7bcc6473f68e1454dc7ab02ec33e8dca99fdd725419b9e71852c466530e [2024-11-09 02:33:42,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:33:42,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:33:42,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:33:42,805 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:33:42,806 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:33:42,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-11-09 02:33:44,314 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:33:44,678 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:33:44,679 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2024-11-09 02:33:44,714 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f44c1c6d/56678d6326ff45fd8c396b5e72fa1630/FLAG2f77eab86 [2024-11-09 02:33:44,734 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f44c1c6d/56678d6326ff45fd8c396b5e72fa1630 [2024-11-09 02:33:44,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:33:44,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:33:44,741 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:33:44,742 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:33:44,747 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:33:44,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:33:44" (1/1) ... [2024-11-09 02:33:44,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a13e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:44, skipping insertion in model container [2024-11-09 02:33:44,749 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:33:44" (1/1) ... [2024-11-09 02:33:44,820 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:33:45,284 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/ldv-races/race-2_1-container_of.i[186203,186216] [2024-11-09 02:33:45,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:33:45,345 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:33:45,380 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/ldv-races/race-2_1-container_of.i[186203,186216] [2024-11-09 02:33:45,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:33:45,434 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:33:45,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:45 WrapperNode [2024-11-09 02:33:45,434 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:33:45,435 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:33:45,435 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:33:45,435 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:33:45,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:45" (1/1) ... [2024-11-09 02:33:45,453 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:45" (1/1) ... [2024-11-09 02:33:45,473 INFO L138 Inliner]: procedures = 246, calls = 39, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 126 [2024-11-09 02:33:45,474 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:33:45,475 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:33:45,475 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:33:45,475 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:33:45,483 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:45" (1/1) ... [2024-11-09 02:33:45,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:45" (1/1) ... [2024-11-09 02:33:45,489 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:45" (1/1) ... [2024-11-09 02:33:45,504 INFO L175 MemorySlicer]: Split 17 memory accesses to 3 slices as follows [2, 13, 2]. 76 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 6, 2]. [2024-11-09 02:33:45,504 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:45" (1/1) ... [2024-11-09 02:33:45,505 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:45" (1/1) ... [2024-11-09 02:33:45,519 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:45" (1/1) ... [2024-11-09 02:33:45,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:45" (1/1) ... [2024-11-09 02:33:45,526 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:45" (1/1) ... [2024-11-09 02:33:45,527 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:45" (1/1) ... [2024-11-09 02:33:45,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:33:45,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:33:45,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:33:45,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:33:45,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:45" (1/1) ... [2024-11-09 02:33:45,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:33:45,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:33:45,577 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 02:33:45,583 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 02:33:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-11-09 02:33:45,635 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-11-09 02:33:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 02:33:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 02:33:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 02:33:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 02:33:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 02:33:45,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 02:33:45,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 02:33:45,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 02:33:45,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 02:33:45,636 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 02:33:45,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:33:45,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 02:33:45,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 02:33:45,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 02:33:45,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:33:45,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 02:33:45,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 02:33:45,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:33:45,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:33:45,640 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 02:33:45,938 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:33:45,941 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:33:46,172 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:33:46,173 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:33:46,321 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:33:46,322 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 02:33:46,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:33:46 BoogieIcfgContainer [2024-11-09 02:33:46,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:33:46,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:33:46,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:33:46,335 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:33:46,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:33:44" (1/3) ... [2024-11-09 02:33:46,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f44c14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:33:46, skipping insertion in model container [2024-11-09 02:33:46,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:33:45" (2/3) ... [2024-11-09 02:33:46,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f44c14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:33:46, skipping insertion in model container [2024-11-09 02:33:46,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:33:46" (3/3) ... [2024-11-09 02:33:46,339 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2024-11-09 02:33:46,357 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:33:46,357 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 02:33:46,357 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:33:46,411 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 02:33:46,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 60 transitions, 134 flow [2024-11-09 02:33:46,498 INFO L124 PetriNetUnfolderBase]: 10/73 cut-off events. [2024-11-09 02:33:46,498 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 02:33:46,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 73 events. 10/73 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 136 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 39. Up to 4 conditions per place. [2024-11-09 02:33:46,502 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 60 transitions, 134 flow [2024-11-09 02:33:46,510 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 53 transitions, 118 flow [2024-11-09 02:33:46,522 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:33:46,558 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;@2ed52d09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:33:46,558 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-09 02:33:46,564 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:33:46,564 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2024-11-09 02:33:46,564 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:33:46,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:46,566 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-09 02:33:46,566 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:33:46,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:46,575 INFO L85 PathProgramCache]: Analyzing trace with hash 13054026, now seen corresponding path program 1 times [2024-11-09 02:33:46,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:46,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145276362] [2024-11-09 02:33:46,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:46,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:47,132 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 02:33:47,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:47,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145276362] [2024-11-09 02:33:47,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145276362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:47,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:47,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 02:33:47,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520004458] [2024-11-09 02:33:47,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:47,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:33:47,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:47,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:33:47,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:33:47,201 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-09 02:33:47,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 53 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:33:47,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:47,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-09 02:33:47,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:47,536 INFO L124 PetriNetUnfolderBase]: 466/835 cut-off events. [2024-11-09 02:33:47,536 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-09 02:33:47,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1660 conditions, 835 events. 466/835 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3555 event pairs, 345 based on Foata normal form. 3/834 useless extension candidates. Maximal degree in co-relation 1550. Up to 602 conditions per place. [2024-11-09 02:33:47,547 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 39 selfloop transitions, 10 changer transitions 0/54 dead transitions. [2024-11-09 02:33:47,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 218 flow [2024-11-09 02:33:47,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:33:47,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 02:33:47,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-11-09 02:33:47,561 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-11-09 02:33:47,562 INFO L175 Difference]: Start difference. First operand has 53 places, 53 transitions, 118 flow. Second operand 3 states and 84 transitions. [2024-11-09 02:33:47,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 218 flow [2024-11-09 02:33:47,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 210 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 02:33:47,571 INFO L231 Difference]: Finished difference. Result has 47 places, 44 transitions, 112 flow [2024-11-09 02:33:47,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=47, PETRI_TRANSITIONS=44} [2024-11-09 02:33:47,578 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -6 predicate places. [2024-11-09 02:33:47,580 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 112 flow [2024-11-09 02:33:47,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:33:47,581 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:47,581 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 02:33:47,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:33:47,582 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:33:47,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:47,583 INFO L85 PathProgramCache]: Analyzing trace with hash -339911441, now seen corresponding path program 1 times [2024-11-09 02:33:47,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:47,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553992646] [2024-11-09 02:33:47,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:47,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:47,765 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 02:33:47,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:47,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553992646] [2024-11-09 02:33:47,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553992646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:47,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:47,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:33:47,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988553405] [2024-11-09 02:33:47,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:47,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:33:47,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:47,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:33:47,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:33:47,793 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-09 02:33:47,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:33:47,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:47,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-09 02:33:47,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:48,056 INFO L124 PetriNetUnfolderBase]: 466/821 cut-off events. [2024-11-09 02:33:48,056 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-09 02:33:48,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1712 conditions, 821 events. 466/821 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3485 event pairs, 155 based on Foata normal form. 1/821 useless extension candidates. Maximal degree in co-relation 818. Up to 553 conditions per place. [2024-11-09 02:33:48,065 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 47 selfloop transitions, 11 changer transitions 0/62 dead transitions. [2024-11-09 02:33:48,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 62 transitions, 265 flow [2024-11-09 02:33:48,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 02:33:48,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 02:33:48,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 109 transitions. [2024-11-09 02:33:48,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36333333333333334 [2024-11-09 02:33:48,072 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 112 flow. Second operand 5 states and 109 transitions. [2024-11-09 02:33:48,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 62 transitions, 265 flow [2024-11-09 02:33:48,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 62 transitions, 245 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 02:33:48,077 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 126 flow [2024-11-09 02:33:48,078 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2024-11-09 02:33:48,079 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -5 predicate places. [2024-11-09 02:33:48,079 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 126 flow [2024-11-09 02:33:48,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:33:48,080 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:48,080 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:33:48,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:33:48,081 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:33:48,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:48,083 INFO L85 PathProgramCache]: Analyzing trace with hash 80723095, now seen corresponding path program 1 times [2024-11-09 02:33:48,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:48,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40428738] [2024-11-09 02:33:48,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:48,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:48,325 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 02:33:48,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:48,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40428738] [2024-11-09 02:33:48,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40428738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:48,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:48,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:33:48,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032662475] [2024-11-09 02:33:48,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:48,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:33:48,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:48,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:33:48,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:33:48,355 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-09 02:33:48,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 02:33:48,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:48,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-09 02:33:48,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:48,590 INFO L124 PetriNetUnfolderBase]: 562/1029 cut-off events. [2024-11-09 02:33:48,590 INFO L125 PetriNetUnfolderBase]: For 176/176 co-relation queries the response was YES. [2024-11-09 02:33:48,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2319 conditions, 1029 events. 562/1029 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4890 event pairs, 252 based on Foata normal form. 64/1092 useless extension candidates. Maximal degree in co-relation 228. Up to 545 conditions per place. [2024-11-09 02:33:48,597 INFO L140 encePairwiseOnDemand]: 47/60 looper letters, 49 selfloop transitions, 10 changer transitions 4/67 dead transitions. [2024-11-09 02:33:48,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 67 transitions, 306 flow [2024-11-09 02:33:48,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 02:33:48,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 02:33:48,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2024-11-09 02:33:48,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.425 [2024-11-09 02:33:48,600 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 126 flow. Second operand 4 states and 102 transitions. [2024-11-09 02:33:48,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 67 transitions, 306 flow [2024-11-09 02:33:48,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 67 transitions, 286 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 02:33:48,603 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 150 flow [2024-11-09 02:33:48,603 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2024-11-09 02:33:48,603 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -3 predicate places. [2024-11-09 02:33:48,604 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 150 flow [2024-11-09 02:33:48,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 02:33:48,604 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:48,604 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] [2024-11-09 02:33:48,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:33:48,605 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:33:48,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:48,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1652907070, now seen corresponding path program 1 times [2024-11-09 02:33:48,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:48,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735115231] [2024-11-09 02:33:48,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:48,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:48,715 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 02:33:48,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:48,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735115231] [2024-11-09 02:33:48,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735115231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:48,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:48,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:33:48,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772602224] [2024-11-09 02:33:48,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:48,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:33:48,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:48,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:33:48,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:33:48,721 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 60 [2024-11-09 02:33:48,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 02:33:48,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:48,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 60 [2024-11-09 02:33:48,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:48,875 INFO L124 PetriNetUnfolderBase]: 225/408 cut-off events. [2024-11-09 02:33:48,876 INFO L125 PetriNetUnfolderBase]: For 99/99 co-relation queries the response was YES. [2024-11-09 02:33:48,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 408 events. 225/408 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1435 event pairs, 46 based on Foata normal form. 0/408 useless extension candidates. Maximal degree in co-relation 927. Up to 217 conditions per place. [2024-11-09 02:33:48,879 INFO L140 encePairwiseOnDemand]: 57/60 looper letters, 48 selfloop transitions, 3 changer transitions 0/58 dead transitions. [2024-11-09 02:33:48,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 58 transitions, 278 flow [2024-11-09 02:33:48,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 02:33:48,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 02:33:48,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 131 transitions. [2024-11-09 02:33:48,882 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5458333333333333 [2024-11-09 02:33:48,882 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 150 flow. Second operand 4 states and 131 transitions. [2024-11-09 02:33:48,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 58 transitions, 278 flow [2024-11-09 02:33:48,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 58 transitions, 248 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-09 02:33:48,887 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 96 flow [2024-11-09 02:33:48,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2024-11-09 02:33:48,889 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -12 predicate places. [2024-11-09 02:33:48,889 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 96 flow [2024-11-09 02:33:48,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 02:33:48,890 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:48,890 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:33:48,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:33:48,890 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:33:48,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:48,891 INFO L85 PathProgramCache]: Analyzing trace with hash -62179198, now seen corresponding path program 1 times [2024-11-09 02:33:48,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:48,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027188660] [2024-11-09 02:33:48,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:48,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:49,479 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 02:33:49,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:49,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027188660] [2024-11-09 02:33:49,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027188660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:49,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:49,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 02:33:49,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464110962] [2024-11-09 02:33:49,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:49,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:33:49,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:49,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:33:49,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:33:49,484 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-09 02:33:49,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 96 flow. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 7 states have internal predecessors, (179), 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 02:33:49,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:49,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-09 02:33:49,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:49,970 INFO L124 PetriNetUnfolderBase]: 483/862 cut-off events. [2024-11-09 02:33:49,971 INFO L125 PetriNetUnfolderBase]: For 304/304 co-relation queries the response was YES. [2024-11-09 02:33:49,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2098 conditions, 862 events. 483/862 cut-off events. For 304/304 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3897 event pairs, 64 based on Foata normal form. 8/868 useless extension candidates. Maximal degree in co-relation 366. Up to 223 conditions per place. [2024-11-09 02:33:49,978 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 83 selfloop transitions, 23 changer transitions 0/113 dead transitions. [2024-11-09 02:33:49,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 113 transitions, 539 flow [2024-11-09 02:33:49,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 02:33:49,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 02:33:49,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 317 transitions. [2024-11-09 02:33:49,982 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5283333333333333 [2024-11-09 02:33:49,983 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 96 flow. Second operand 10 states and 317 transitions. [2024-11-09 02:33:49,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 113 transitions, 539 flow [2024-11-09 02:33:49,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 113 transitions, 519 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 02:33:49,987 INFO L231 Difference]: Finished difference. Result has 56 places, 56 transitions, 272 flow [2024-11-09 02:33:49,988 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=272, PETRI_PLACES=56, PETRI_TRANSITIONS=56} [2024-11-09 02:33:49,989 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 3 predicate places. [2024-11-09 02:33:49,991 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 56 transitions, 272 flow [2024-11-09 02:33:49,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 7 states have internal predecessors, (179), 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 02:33:49,991 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:49,991 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:33:49,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 02:33:49,992 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:33:49,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:49,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1900616770, now seen corresponding path program 2 times [2024-11-09 02:33:49,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:49,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476848015] [2024-11-09 02:33:49,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:49,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:50,626 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 02:33:50,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:50,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476848015] [2024-11-09 02:33:50,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476848015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:50,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:50,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 02:33:50,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405517450] [2024-11-09 02:33:50,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:50,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 02:33:50,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:50,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 02:33:50,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 02:33:50,630 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-09 02:33:50,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 56 transitions, 272 flow. Second operand has 8 states, 8 states have (on average 25.125) internal successors, (201), 8 states have internal predecessors, (201), 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 02:33:50,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:50,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-09 02:33:50,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:51,122 INFO L124 PetriNetUnfolderBase]: 537/964 cut-off events. [2024-11-09 02:33:51,122 INFO L125 PetriNetUnfolderBase]: For 1460/1460 co-relation queries the response was YES. [2024-11-09 02:33:51,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3246 conditions, 964 events. 537/964 cut-off events. For 1460/1460 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4456 event pairs, 30 based on Foata normal form. 8/970 useless extension candidates. Maximal degree in co-relation 1740. Up to 330 conditions per place. [2024-11-09 02:33:51,130 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 78 selfloop transitions, 49 changer transitions 0/134 dead transitions. [2024-11-09 02:33:51,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 134 transitions, 966 flow [2024-11-09 02:33:51,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 02:33:51,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-09 02:33:51,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 348 transitions. [2024-11-09 02:33:51,132 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48333333333333334 [2024-11-09 02:33:51,132 INFO L175 Difference]: Start difference. First operand has 56 places, 56 transitions, 272 flow. Second operand 12 states and 348 transitions. [2024-11-09 02:33:51,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 134 transitions, 966 flow [2024-11-09 02:33:51,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 134 transitions, 952 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 02:33:51,139 INFO L231 Difference]: Finished difference. Result has 70 places, 86 transitions, 640 flow [2024-11-09 02:33:51,139 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=640, PETRI_PLACES=70, PETRI_TRANSITIONS=86} [2024-11-09 02:33:51,139 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 17 predicate places. [2024-11-09 02:33:51,140 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 86 transitions, 640 flow [2024-11-09 02:33:51,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.125) internal successors, (201), 8 states have internal predecessors, (201), 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 02:33:51,140 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:51,140 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:33:51,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 02:33:51,141 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:33:51,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:51,141 INFO L85 PathProgramCache]: Analyzing trace with hash -426585704, now seen corresponding path program 3 times [2024-11-09 02:33:51,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:51,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026847583] [2024-11-09 02:33:51,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:51,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:52,100 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 02:33:52,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:52,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026847583] [2024-11-09 02:33:52,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026847583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:52,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:52,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 02:33:52,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958950319] [2024-11-09 02:33:52,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:52,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 02:33:52,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:52,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 02:33:52,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-09 02:33:52,151 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-09 02:33:52,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 86 transitions, 640 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:33:52,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:52,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-09 02:33:52,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:53,090 INFO L124 PetriNetUnfolderBase]: 834/1543 cut-off events. [2024-11-09 02:33:53,090 INFO L125 PetriNetUnfolderBase]: For 4885/4885 co-relation queries the response was YES. [2024-11-09 02:33:53,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6024 conditions, 1543 events. 834/1543 cut-off events. For 4885/4885 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 8357 event pairs, 88 based on Foata normal form. 0/1541 useless extension candidates. Maximal degree in co-relation 3651. Up to 548 conditions per place. [2024-11-09 02:33:53,104 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 121 selfloop transitions, 56 changer transitions 0/179 dead transitions. [2024-11-09 02:33:53,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 179 transitions, 1599 flow [2024-11-09 02:33:53,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 02:33:53,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 02:33:53,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 261 transitions. [2024-11-09 02:33:53,106 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.29 [2024-11-09 02:33:53,106 INFO L175 Difference]: Start difference. First operand has 70 places, 86 transitions, 640 flow. Second operand 15 states and 261 transitions. [2024-11-09 02:33:53,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 179 transitions, 1599 flow [2024-11-09 02:33:53,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 179 transitions, 1518 flow, removed 30 selfloop flow, removed 4 redundant places. [2024-11-09 02:33:53,118 INFO L231 Difference]: Finished difference. Result has 88 places, 106 transitions, 966 flow [2024-11-09 02:33:53,118 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=966, PETRI_PLACES=88, PETRI_TRANSITIONS=106} [2024-11-09 02:33:53,119 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 35 predicate places. [2024-11-09 02:33:53,119 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 106 transitions, 966 flow [2024-11-09 02:33:53,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:33:53,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:53,120 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:33:53,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 02:33:53,120 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:33:53,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:53,121 INFO L85 PathProgramCache]: Analyzing trace with hash -974318922, now seen corresponding path program 4 times [2024-11-09 02:33:53,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:53,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253037164] [2024-11-09 02:33:53,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:53,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:54,043 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 02:33:54,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:54,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253037164] [2024-11-09 02:33:54,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253037164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:54,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:54,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 02:33:54,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494556556] [2024-11-09 02:33:54,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:54,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 02:33:54,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:54,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 02:33:54,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 02:33:54,093 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-09 02:33:54,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 106 transitions, 966 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:33:54,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:54,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-09 02:33:54,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:55,511 INFO L124 PetriNetUnfolderBase]: 1087/2034 cut-off events. [2024-11-09 02:33:55,512 INFO L125 PetriNetUnfolderBase]: For 7722/7722 co-relation queries the response was YES. [2024-11-09 02:33:55,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8522 conditions, 2034 events. 1087/2034 cut-off events. For 7722/7722 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 11896 event pairs, 113 based on Foata normal form. 1/2035 useless extension candidates. Maximal degree in co-relation 8471. Up to 855 conditions per place. [2024-11-09 02:33:55,531 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 127 selfloop transitions, 79 changer transitions 0/208 dead transitions. [2024-11-09 02:33:55,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 208 transitions, 2065 flow [2024-11-09 02:33:55,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 02:33:55,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-09 02:33:55,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 298 transitions. [2024-11-09 02:33:55,536 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2759259259259259 [2024-11-09 02:33:55,536 INFO L175 Difference]: Start difference. First operand has 88 places, 106 transitions, 966 flow. Second operand 18 states and 298 transitions. [2024-11-09 02:33:55,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 208 transitions, 2065 flow [2024-11-09 02:33:55,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 208 transitions, 2013 flow, removed 17 selfloop flow, removed 3 redundant places. [2024-11-09 02:33:55,571 INFO L231 Difference]: Finished difference. Result has 110 places, 129 transitions, 1412 flow [2024-11-09 02:33:55,572 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1412, PETRI_PLACES=110, PETRI_TRANSITIONS=129} [2024-11-09 02:33:55,573 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 57 predicate places. [2024-11-09 02:33:55,574 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 129 transitions, 1412 flow [2024-11-09 02:33:55,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:33:55,577 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:55,577 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:33:55,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 02:33:55,578 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:33:55,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:55,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1547105784, now seen corresponding path program 5 times [2024-11-09 02:33:55,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:55,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552001425] [2024-11-09 02:33:55,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:55,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:56,396 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 02:33:56,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:56,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552001425] [2024-11-09 02:33:56,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552001425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:56,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:56,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 02:33:56,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854369077] [2024-11-09 02:33:56,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:56,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 02:33:56,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:56,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 02:33:56,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-09 02:33:56,426 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-09 02:33:56,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 129 transitions, 1412 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:33:56,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:56,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-09 02:33:56,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:57,588 INFO L124 PetriNetUnfolderBase]: 1087/2032 cut-off events. [2024-11-09 02:33:57,588 INFO L125 PetriNetUnfolderBase]: For 10996/10996 co-relation queries the response was YES. [2024-11-09 02:33:57,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9183 conditions, 2032 events. 1087/2032 cut-off events. For 10996/10996 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 11717 event pairs, 100 based on Foata normal form. 1/2033 useless extension candidates. Maximal degree in co-relation 9123. Up to 498 conditions per place. [2024-11-09 02:33:57,608 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 132 selfloop transitions, 93 changer transitions 0/227 dead transitions. [2024-11-09 02:33:57,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 227 transitions, 2501 flow [2024-11-09 02:33:57,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 02:33:57,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-09 02:33:57,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 324 transitions. [2024-11-09 02:33:57,611 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.28421052631578947 [2024-11-09 02:33:57,611 INFO L175 Difference]: Start difference. First operand has 110 places, 129 transitions, 1412 flow. Second operand 19 states and 324 transitions. [2024-11-09 02:33:57,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 227 transitions, 2501 flow [2024-11-09 02:33:57,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 227 transitions, 2425 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-09 02:33:57,661 INFO L231 Difference]: Finished difference. Result has 133 places, 149 transitions, 1879 flow [2024-11-09 02:33:57,661 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1349, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1879, PETRI_PLACES=133, PETRI_TRANSITIONS=149} [2024-11-09 02:33:57,662 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 80 predicate places. [2024-11-09 02:33:57,662 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 149 transitions, 1879 flow [2024-11-09 02:33:57,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:33:57,663 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:57,663 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:33:57,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 02:33:57,664 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:33:57,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:57,665 INFO L85 PathProgramCache]: Analyzing trace with hash 2101411976, now seen corresponding path program 6 times [2024-11-09 02:33:57,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:57,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535133904] [2024-11-09 02:33:57,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:57,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:33:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:33:58,550 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 02:33:58,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:33:58,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535133904] [2024-11-09 02:33:58,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535133904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:33:58,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:33:58,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 02:33:58,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515936127] [2024-11-09 02:33:58,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:33:58,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 02:33:58,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:33:58,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 02:33:58,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 02:33:58,598 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-09 02:33:58,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 149 transitions, 1879 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:33:58,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:33:58,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-09 02:33:58,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:33:59,904 INFO L124 PetriNetUnfolderBase]: 1087/2028 cut-off events. [2024-11-09 02:33:59,904 INFO L125 PetriNetUnfolderBase]: For 15015/15015 co-relation queries the response was YES. [2024-11-09 02:33:59,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9986 conditions, 2028 events. 1087/2028 cut-off events. For 15015/15015 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 11753 event pairs, 199 based on Foata normal form. 2/2030 useless extension candidates. Maximal degree in co-relation 9924. Up to 605 conditions per place. [2024-11-09 02:33:59,925 INFO L140 encePairwiseOnDemand]: 45/60 looper letters, 153 selfloop transitions, 90 changer transitions 0/244 dead transitions. [2024-11-09 02:33:59,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 244 transitions, 3057 flow [2024-11-09 02:33:59,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 02:33:59,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-09 02:33:59,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 326 transitions. [2024-11-09 02:33:59,927 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.28596491228070176 [2024-11-09 02:33:59,927 INFO L175 Difference]: Start difference. First operand has 133 places, 149 transitions, 1879 flow. Second operand 19 states and 326 transitions. [2024-11-09 02:33:59,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 244 transitions, 3057 flow [2024-11-09 02:33:59,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 244 transitions, 2959 flow, removed 19 selfloop flow, removed 8 redundant places. [2024-11-09 02:33:59,994 INFO L231 Difference]: Finished difference. Result has 143 places, 161 transitions, 2221 flow [2024-11-09 02:33:59,994 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1774, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2221, PETRI_PLACES=143, PETRI_TRANSITIONS=161} [2024-11-09 02:33:59,995 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 90 predicate places. [2024-11-09 02:33:59,995 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 161 transitions, 2221 flow [2024-11-09 02:33:59,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:33:59,996 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:33:59,996 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:33:59,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 02:33:59,996 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:33:59,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:33:59,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1166142421, now seen corresponding path program 1 times [2024-11-09 02:33:59,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:33:59,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477745289] [2024-11-09 02:33:59,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:33:59,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:00,338 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 02:34:00,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:00,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477745289] [2024-11-09 02:34:00,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477745289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:00,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:00,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 02:34:00,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073286743] [2024-11-09 02:34:00,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:00,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:34:00,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:00,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:34:00,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:34:00,342 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-09 02:34:00,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 161 transitions, 2221 flow. Second operand has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 7 states have internal predecessors, (180), 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 02:34:00,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:00,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-09 02:34:00,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:00,888 INFO L124 PetriNetUnfolderBase]: 1011/1910 cut-off events. [2024-11-09 02:34:00,888 INFO L125 PetriNetUnfolderBase]: For 15994/15994 co-relation queries the response was YES. [2024-11-09 02:34:00,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9723 conditions, 1910 events. 1011/1910 cut-off events. For 15994/15994 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 11201 event pairs, 152 based on Foata normal form. 14/1924 useless extension candidates. Maximal degree in co-relation 9171. Up to 1172 conditions per place. [2024-11-09 02:34:00,920 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 125 selfloop transitions, 94 changer transitions 0/230 dead transitions. [2024-11-09 02:34:00,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 230 transitions, 3589 flow [2024-11-09 02:34:00,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 02:34:00,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 02:34:00,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 272 transitions. [2024-11-09 02:34:00,924 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5037037037037037 [2024-11-09 02:34:00,924 INFO L175 Difference]: Start difference. First operand has 143 places, 161 transitions, 2221 flow. Second operand 9 states and 272 transitions. [2024-11-09 02:34:00,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 230 transitions, 3589 flow [2024-11-09 02:34:01,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 230 transitions, 3381 flow, removed 41 selfloop flow, removed 9 redundant places. [2024-11-09 02:34:01,015 INFO L231 Difference]: Finished difference. Result has 148 places, 199 transitions, 3067 flow [2024-11-09 02:34:01,016 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=2058, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3067, PETRI_PLACES=148, PETRI_TRANSITIONS=199} [2024-11-09 02:34:01,017 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 95 predicate places. [2024-11-09 02:34:01,017 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 199 transitions, 3067 flow [2024-11-09 02:34:01,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 7 states have internal predecessors, (180), 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 02:34:01,018 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:01,018 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:34:01,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 02:34:01,018 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:34:01,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:01,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1134493529, now seen corresponding path program 2 times [2024-11-09 02:34:01,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:01,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187142992] [2024-11-09 02:34:01,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:01,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:02,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:34:02,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:02,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187142992] [2024-11-09 02:34:02,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187142992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:02,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:02,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 02:34:02,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585166516] [2024-11-09 02:34:02,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:02,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 02:34:02,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:02,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 02:34:02,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-09 02:34:02,100 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-09 02:34:02,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 199 transitions, 3067 flow. Second operand has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 02:34:02,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:02,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-09 02:34:02,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:03,078 INFO L124 PetriNetUnfolderBase]: 1011/1908 cut-off events. [2024-11-09 02:34:03,078 INFO L125 PetriNetUnfolderBase]: For 17158/17158 co-relation queries the response was YES. [2024-11-09 02:34:03,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10236 conditions, 1908 events. 1011/1908 cut-off events. For 17158/17158 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 11017 event pairs, 249 based on Foata normal form. 1/1909 useless extension candidates. Maximal degree in co-relation 9862. Up to 1520 conditions per place. [2024-11-09 02:34:03,101 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 135 selfloop transitions, 74 changer transitions 47/257 dead transitions. [2024-11-09 02:34:03,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 257 transitions, 4196 flow [2024-11-09 02:34:03,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 02:34:03,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 02:34:03,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 231 transitions. [2024-11-09 02:34:03,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.275 [2024-11-09 02:34:03,103 INFO L175 Difference]: Start difference. First operand has 148 places, 199 transitions, 3067 flow. Second operand 14 states and 231 transitions. [2024-11-09 02:34:03,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 257 transitions, 4196 flow [2024-11-09 02:34:03,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 257 transitions, 4050 flow, removed 67 selfloop flow, removed 1 redundant places. [2024-11-09 02:34:03,176 INFO L231 Difference]: Finished difference. Result has 165 places, 197 transitions, 3193 flow [2024-11-09 02:34:03,177 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=2977, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3193, PETRI_PLACES=165, PETRI_TRANSITIONS=197} [2024-11-09 02:34:03,178 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 112 predicate places. [2024-11-09 02:34:03,179 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 197 transitions, 3193 flow [2024-11-09 02:34:03,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 02:34:03,180 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:03,180 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:34:03,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 02:34:03,180 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:34:03,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:03,181 INFO L85 PathProgramCache]: Analyzing trace with hash -155311481, now seen corresponding path program 3 times [2024-11-09 02:34:03,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:03,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962439177] [2024-11-09 02:34:03,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:03,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:04,213 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 02:34:04,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:04,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962439177] [2024-11-09 02:34:04,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962439177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:04,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:04,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 02:34:04,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517039992] [2024-11-09 02:34:04,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:04,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 02:34:04,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:04,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 02:34:04,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-09 02:34:04,252 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-09 02:34:04,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 197 transitions, 3193 flow. Second operand has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 02:34:04,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:04,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-09 02:34:04,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:05,081 INFO L124 PetriNetUnfolderBase]: 1003/1900 cut-off events. [2024-11-09 02:34:05,081 INFO L125 PetriNetUnfolderBase]: For 17446/17446 co-relation queries the response was YES. [2024-11-09 02:34:05,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10173 conditions, 1900 events. 1003/1900 cut-off events. For 17446/17446 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 11148 event pairs, 277 based on Foata normal form. 1/1901 useless extension candidates. Maximal degree in co-relation 10095. Up to 1411 conditions per place. [2024-11-09 02:34:05,101 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 149 selfloop transitions, 58 changer transitions 45/253 dead transitions. [2024-11-09 02:34:05,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 253 transitions, 4203 flow [2024-11-09 02:34:05,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 02:34:05,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 02:34:05,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 220 transitions. [2024-11-09 02:34:05,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.28205128205128205 [2024-11-09 02:34:05,104 INFO L175 Difference]: Start difference. First operand has 165 places, 197 transitions, 3193 flow. Second operand 13 states and 220 transitions. [2024-11-09 02:34:05,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 253 transitions, 4203 flow [2024-11-09 02:34:05,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 253 transitions, 4049 flow, removed 14 selfloop flow, removed 11 redundant places. [2024-11-09 02:34:05,186 INFO L231 Difference]: Finished difference. Result has 158 places, 185 transitions, 3014 flow [2024-11-09 02:34:05,186 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=3056, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3014, PETRI_PLACES=158, PETRI_TRANSITIONS=185} [2024-11-09 02:34:05,187 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 105 predicate places. [2024-11-09 02:34:05,187 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 185 transitions, 3014 flow [2024-11-09 02:34:05,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 02:34:05,188 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:05,188 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:34:05,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 02:34:05,188 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:34:05,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:05,189 INFO L85 PathProgramCache]: Analyzing trace with hash 455871811, now seen corresponding path program 4 times [2024-11-09 02:34:05,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:05,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945108799] [2024-11-09 02:34:05,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:05,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:06,165 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 02:34:06,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:06,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945108799] [2024-11-09 02:34:06,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945108799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:06,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:06,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 02:34:06,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303459432] [2024-11-09 02:34:06,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:06,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 02:34:06,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:06,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 02:34:06,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-09 02:34:06,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-09 02:34:06,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 185 transitions, 3014 flow. Second operand has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 02:34:06,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:06,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-09 02:34:06,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:06,953 INFO L124 PetriNetUnfolderBase]: 906/1725 cut-off events. [2024-11-09 02:34:06,953 INFO L125 PetriNetUnfolderBase]: For 15780/15780 co-relation queries the response was YES. [2024-11-09 02:34:06,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9197 conditions, 1725 events. 906/1725 cut-off events. For 15780/15780 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 9905 event pairs, 265 based on Foata normal form. 1/1726 useless extension candidates. Maximal degree in co-relation 9131. Up to 1245 conditions per place. [2024-11-09 02:34:06,969 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 129 selfloop transitions, 52 changer transitions 58/240 dead transitions. [2024-11-09 02:34:06,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 240 transitions, 3944 flow [2024-11-09 02:34:06,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 02:34:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 02:34:06,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 230 transitions. [2024-11-09 02:34:06,970 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.27380952380952384 [2024-11-09 02:34:06,970 INFO L175 Difference]: Start difference. First operand has 158 places, 185 transitions, 3014 flow. Second operand 14 states and 230 transitions. [2024-11-09 02:34:06,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 240 transitions, 3944 flow [2024-11-09 02:34:07,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 240 transitions, 3742 flow, removed 11 selfloop flow, removed 15 redundant places. [2024-11-09 02:34:07,017 INFO L231 Difference]: Finished difference. Result has 152 places, 161 transitions, 2507 flow [2024-11-09 02:34:07,017 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=2816, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2507, PETRI_PLACES=152, PETRI_TRANSITIONS=161} [2024-11-09 02:34:07,018 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 99 predicate places. [2024-11-09 02:34:07,018 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 161 transitions, 2507 flow [2024-11-09 02:34:07,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 02:34:07,018 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:07,018 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:34:07,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 02:34:07,019 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:34:07,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:07,019 INFO L85 PathProgramCache]: Analyzing trace with hash -744916971, now seen corresponding path program 5 times [2024-11-09 02:34:07,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:07,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843516217] [2024-11-09 02:34:07,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:07,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:07,322 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 02:34:07,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:07,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843516217] [2024-11-09 02:34:07,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843516217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:07,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:07,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 02:34:07,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589175555] [2024-11-09 02:34:07,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:07,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:34:07,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:07,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:34:07,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:34:07,324 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-09 02:34:07,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 161 transitions, 2507 flow. Second operand has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 7 states have internal predecessors, (180), 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 02:34:07,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:07,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-09 02:34:07,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:07,742 INFO L124 PetriNetUnfolderBase]: 672/1301 cut-off events. [2024-11-09 02:34:07,742 INFO L125 PetriNetUnfolderBase]: For 10777/10777 co-relation queries the response was YES. [2024-11-09 02:34:07,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6737 conditions, 1301 events. 672/1301 cut-off events. For 10777/10777 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 7022 event pairs, 113 based on Foata normal form. 12/1313 useless extension candidates. Maximal degree in co-relation 6677. Up to 711 conditions per place. [2024-11-09 02:34:07,753 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 95 selfloop transitions, 73 changer transitions 3/182 dead transitions. [2024-11-09 02:34:07,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 182 transitions, 2831 flow [2024-11-09 02:34:07,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 02:34:07,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 02:34:07,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 305 transitions. [2024-11-09 02:34:07,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5083333333333333 [2024-11-09 02:34:07,755 INFO L175 Difference]: Start difference. First operand has 152 places, 161 transitions, 2507 flow. Second operand 10 states and 305 transitions. [2024-11-09 02:34:07,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 182 transitions, 2831 flow [2024-11-09 02:34:07,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 182 transitions, 2623 flow, removed 35 selfloop flow, removed 18 redundant places. [2024-11-09 02:34:07,792 INFO L231 Difference]: Finished difference. Result has 138 places, 157 transitions, 2372 flow [2024-11-09 02:34:07,793 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=2183, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2372, PETRI_PLACES=138, PETRI_TRANSITIONS=157} [2024-11-09 02:34:07,793 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 85 predicate places. [2024-11-09 02:34:07,793 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 157 transitions, 2372 flow [2024-11-09 02:34:07,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 7 states have internal predecessors, (180), 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 02:34:07,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:07,794 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:34:07,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 02:34:07,794 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:34:07,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:07,795 INFO L85 PathProgramCache]: Analyzing trace with hash 896429373, now seen corresponding path program 6 times [2024-11-09 02:34:07,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:07,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318756257] [2024-11-09 02:34:07,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:07,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:08,725 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 02:34:08,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:08,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318756257] [2024-11-09 02:34:08,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318756257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:08,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:08,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 02:34:08,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645635068] [2024-11-09 02:34:08,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:08,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 02:34:08,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:08,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 02:34:08,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-09 02:34:08,760 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-09 02:34:08,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 157 transitions, 2372 flow. Second operand has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 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 02:34:08,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:08,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-09 02:34:08,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:09,440 INFO L124 PetriNetUnfolderBase]: 669/1290 cut-off events. [2024-11-09 02:34:09,441 INFO L125 PetriNetUnfolderBase]: For 10411/10411 co-relation queries the response was YES. [2024-11-09 02:34:09,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6544 conditions, 1290 events. 669/1290 cut-off events. For 10411/10411 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 6883 event pairs, 163 based on Foata normal form. 2/1292 useless extension candidates. Maximal degree in co-relation 6459. Up to 892 conditions per place. [2024-11-09 02:34:09,450 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 103 selfloop transitions, 39 changer transitions 45/188 dead transitions. [2024-11-09 02:34:09,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 188 transitions, 2907 flow [2024-11-09 02:34:09,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 02:34:09,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 02:34:09,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 226 transitions. [2024-11-09 02:34:09,452 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.26904761904761904 [2024-11-09 02:34:09,452 INFO L175 Difference]: Start difference. First operand has 138 places, 157 transitions, 2372 flow. Second operand 14 states and 226 transitions. [2024-11-09 02:34:09,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 188 transitions, 2907 flow [2024-11-09 02:34:09,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 188 transitions, 2768 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-09 02:34:09,496 INFO L231 Difference]: Finished difference. Result has 146 places, 127 transitions, 1860 flow [2024-11-09 02:34:09,496 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=2234, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1860, PETRI_PLACES=146, PETRI_TRANSITIONS=127} [2024-11-09 02:34:09,497 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 93 predicate places. [2024-11-09 02:34:09,497 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 127 transitions, 1860 flow [2024-11-09 02:34:09,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 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 02:34:09,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:09,498 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:34:09,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 02:34:09,498 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:34:09,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:09,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1954738729, now seen corresponding path program 7 times [2024-11-09 02:34:09,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:09,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437502544] [2024-11-09 02:34:09,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:09,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:09,850 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 02:34:09,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:09,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437502544] [2024-11-09 02:34:09,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437502544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:09,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:09,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 02:34:09,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375110859] [2024-11-09 02:34:09,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:09,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 02:34:09,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:09,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 02:34:09,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 02:34:09,852 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-09 02:34:09,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 127 transitions, 1860 flow. Second operand has 8 states, 8 states have (on average 25.25) internal successors, (202), 8 states have internal predecessors, (202), 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 02:34:09,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:09,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-09 02:34:09,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:10,399 INFO L124 PetriNetUnfolderBase]: 629/1192 cut-off events. [2024-11-09 02:34:10,399 INFO L125 PetriNetUnfolderBase]: For 8925/8925 co-relation queries the response was YES. [2024-11-09 02:34:10,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5959 conditions, 1192 events. 629/1192 cut-off events. For 8925/8925 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 6304 event pairs, 62 based on Foata normal form. 10/1202 useless extension candidates. Maximal degree in co-relation 5906. Up to 591 conditions per place. [2024-11-09 02:34:10,407 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 86 selfloop transitions, 74 changer transitions 0/169 dead transitions. [2024-11-09 02:34:10,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 169 transitions, 2565 flow [2024-11-09 02:34:10,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 02:34:10,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-09 02:34:10,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 339 transitions. [2024-11-09 02:34:10,408 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4708333333333333 [2024-11-09 02:34:10,408 INFO L175 Difference]: Start difference. First operand has 146 places, 127 transitions, 1860 flow. Second operand 12 states and 339 transitions. [2024-11-09 02:34:10,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 169 transitions, 2565 flow [2024-11-09 02:34:10,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 169 transitions, 2133 flow, removed 33 selfloop flow, removed 29 redundant places. [2024-11-09 02:34:10,443 INFO L231 Difference]: Finished difference. Result has 111 places, 137 transitions, 1842 flow [2024-11-09 02:34:10,443 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1490, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1842, PETRI_PLACES=111, PETRI_TRANSITIONS=137} [2024-11-09 02:34:10,444 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 58 predicate places. [2024-11-09 02:34:10,444 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 137 transitions, 1842 flow [2024-11-09 02:34:10,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.25) internal successors, (202), 8 states have internal predecessors, (202), 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 02:34:10,444 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:10,445 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:34:10,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 02:34:10,445 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:34:10,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:10,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1164023119, now seen corresponding path program 8 times [2024-11-09 02:34:10,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:10,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239157703] [2024-11-09 02:34:10,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:10,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:11,273 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 02:34:11,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:11,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239157703] [2024-11-09 02:34:11,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239157703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:11,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:11,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 02:34:11,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779126399] [2024-11-09 02:34:11,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:11,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 02:34:11,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:11,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 02:34:11,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 02:34:11,324 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-09 02:34:11,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 137 transitions, 1842 flow. Second operand has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 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 02:34:11,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:11,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-09 02:34:11,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:11,946 INFO L124 PetriNetUnfolderBase]: 708/1355 cut-off events. [2024-11-09 02:34:11,946 INFO L125 PetriNetUnfolderBase]: For 8236/8236 co-relation queries the response was YES. [2024-11-09 02:34:11,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6477 conditions, 1355 events. 708/1355 cut-off events. For 8236/8236 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 7355 event pairs, 184 based on Foata normal form. 1/1356 useless extension candidates. Maximal degree in co-relation 6220. Up to 897 conditions per place. [2024-11-09 02:34:11,954 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 113 selfloop transitions, 48 changer transitions 47/209 dead transitions. [2024-11-09 02:34:11,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 209 transitions, 2870 flow [2024-11-09 02:34:11,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 02:34:11,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 02:34:11,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 242 transitions. [2024-11-09 02:34:11,956 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2688888888888889 [2024-11-09 02:34:11,956 INFO L175 Difference]: Start difference. First operand has 111 places, 137 transitions, 1842 flow. Second operand 15 states and 242 transitions. [2024-11-09 02:34:11,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 209 transitions, 2870 flow [2024-11-09 02:34:11,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 209 transitions, 2562 flow, removed 50 selfloop flow, removed 10 redundant places. [2024-11-09 02:34:11,992 INFO L231 Difference]: Finished difference. Result has 119 places, 137 transitions, 1696 flow [2024-11-09 02:34:11,993 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1617, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1696, PETRI_PLACES=119, PETRI_TRANSITIONS=137} [2024-11-09 02:34:11,993 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 66 predicate places. [2024-11-09 02:34:11,993 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 137 transitions, 1696 flow [2024-11-09 02:34:11,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 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 02:34:11,995 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:11,995 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:34:11,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 02:34:11,996 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:34:11,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:11,996 INFO L85 PathProgramCache]: Analyzing trace with hash 267005707, now seen corresponding path program 9 times [2024-11-09 02:34:11,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:11,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485083363] [2024-11-09 02:34:11,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:11,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:12,260 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 02:34:12,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:12,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485083363] [2024-11-09 02:34:12,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485083363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:12,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:12,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 02:34:12,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288782318] [2024-11-09 02:34:12,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:12,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:34:12,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:12,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:34:12,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:34:12,262 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-09 02:34:12,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 137 transitions, 1696 flow. Second operand has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 7 states have internal predecessors, (180), 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 02:34:12,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:12,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-09 02:34:12,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:12,577 INFO L124 PetriNetUnfolderBase]: 486/957 cut-off events. [2024-11-09 02:34:12,577 INFO L125 PetriNetUnfolderBase]: For 4906/4906 co-relation queries the response was YES. [2024-11-09 02:34:12,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4315 conditions, 957 events. 486/957 cut-off events. For 4906/4906 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4860 event pairs, 71 based on Foata normal form. 12/969 useless extension candidates. Maximal degree in co-relation 4270. Up to 403 conditions per place. [2024-11-09 02:34:12,584 INFO L140 encePairwiseOnDemand]: 51/60 looper letters, 92 selfloop transitions, 67 changer transitions 1/169 dead transitions. [2024-11-09 02:34:12,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 169 transitions, 2091 flow [2024-11-09 02:34:12,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 02:34:12,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-09 02:34:12,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 330 transitions. [2024-11-09 02:34:12,585 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-09 02:34:12,585 INFO L175 Difference]: Start difference. First operand has 119 places, 137 transitions, 1696 flow. Second operand 11 states and 330 transitions. [2024-11-09 02:34:12,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 169 transitions, 2091 flow [2024-11-09 02:34:12,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 169 transitions, 1975 flow, removed 23 selfloop flow, removed 10 redundant places. [2024-11-09 02:34:12,609 INFO L231 Difference]: Finished difference. Result has 121 places, 141 transitions, 1756 flow [2024-11-09 02:34:12,609 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1508, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1756, PETRI_PLACES=121, PETRI_TRANSITIONS=141} [2024-11-09 02:34:12,610 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 68 predicate places. [2024-11-09 02:34:12,610 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 141 transitions, 1756 flow [2024-11-09 02:34:12,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 7 states have internal predecessors, (180), 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 02:34:12,610 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:12,610 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:34:12,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 02:34:12,611 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:34:12,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:12,611 INFO L85 PathProgramCache]: Analyzing trace with hash 983390287, now seen corresponding path program 10 times [2024-11-09 02:34:12,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:12,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977038858] [2024-11-09 02:34:12,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:12,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:13,575 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 02:34:13,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:13,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977038858] [2024-11-09 02:34:13,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977038858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:13,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:13,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 02:34:13,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575036252] [2024-11-09 02:34:13,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:13,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 02:34:13,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:13,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 02:34:13,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-09 02:34:13,609 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-09 02:34:13,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 141 transitions, 1756 flow. Second operand has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 02:34:13,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:13,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-09 02:34:13,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:14,176 INFO L124 PetriNetUnfolderBase]: 491/978 cut-off events. [2024-11-09 02:34:14,177 INFO L125 PetriNetUnfolderBase]: For 5654/5654 co-relation queries the response was YES. [2024-11-09 02:34:14,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4651 conditions, 978 events. 491/978 cut-off events. For 5654/5654 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4950 event pairs, 101 based on Foata normal form. 1/979 useless extension candidates. Maximal degree in co-relation 4368. Up to 574 conditions per place. [2024-11-09 02:34:14,182 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 98 selfloop transitions, 42 changer transitions 40/181 dead transitions. [2024-11-09 02:34:14,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 181 transitions, 2370 flow [2024-11-09 02:34:14,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 02:34:14,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 02:34:14,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 223 transitions. [2024-11-09 02:34:14,183 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2654761904761905 [2024-11-09 02:34:14,183 INFO L175 Difference]: Start difference. First operand has 121 places, 141 transitions, 1756 flow. Second operand 14 states and 223 transitions. [2024-11-09 02:34:14,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 181 transitions, 2370 flow [2024-11-09 02:34:14,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 181 transitions, 2246 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-11-09 02:34:14,209 INFO L231 Difference]: Finished difference. Result has 129 places, 122 transitions, 1454 flow [2024-11-09 02:34:14,209 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1648, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1454, PETRI_PLACES=129, PETRI_TRANSITIONS=122} [2024-11-09 02:34:14,210 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 76 predicate places. [2024-11-09 02:34:14,210 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 122 transitions, 1454 flow [2024-11-09 02:34:14,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 02:34:14,210 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:14,210 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:34:14,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 02:34:14,211 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:34:14,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:14,211 INFO L85 PathProgramCache]: Analyzing trace with hash 2089402495, now seen corresponding path program 11 times [2024-11-09 02:34:14,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:14,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290339557] [2024-11-09 02:34:14,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:14,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:15,090 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 02:34:15,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:15,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290339557] [2024-11-09 02:34:15,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290339557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:15,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:15,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 02:34:15,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942768350] [2024-11-09 02:34:15,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:15,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 02:34:15,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:15,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 02:34:15,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-09 02:34:15,119 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-09 02:34:15,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 122 transitions, 1454 flow. Second operand has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 02:34:15,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:15,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-09 02:34:15,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:15,760 INFO L124 PetriNetUnfolderBase]: 392/781 cut-off events. [2024-11-09 02:34:15,760 INFO L125 PetriNetUnfolderBase]: For 4131/4131 co-relation queries the response was YES. [2024-11-09 02:34:15,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3676 conditions, 781 events. 392/781 cut-off events. For 4131/4131 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3695 event pairs, 77 based on Foata normal form. 2/783 useless extension candidates. Maximal degree in co-relation 3631. Up to 441 conditions per place. [2024-11-09 02:34:15,764 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 79 selfloop transitions, 31 changer transitions 44/155 dead transitions. [2024-11-09 02:34:15,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 155 transitions, 1933 flow [2024-11-09 02:34:15,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 02:34:15,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-09 02:34:15,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 249 transitions. [2024-11-09 02:34:15,766 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.259375 [2024-11-09 02:34:15,766 INFO L175 Difference]: Start difference. First operand has 129 places, 122 transitions, 1454 flow. Second operand 16 states and 249 transitions. [2024-11-09 02:34:15,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 155 transitions, 1933 flow [2024-11-09 02:34:15,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 155 transitions, 1704 flow, removed 5 selfloop flow, removed 21 redundant places. [2024-11-09 02:34:15,783 INFO L231 Difference]: Finished difference. Result has 119 places, 92 transitions, 929 flow [2024-11-09 02:34:15,784 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=1225, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=929, PETRI_PLACES=119, PETRI_TRANSITIONS=92} [2024-11-09 02:34:15,784 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 66 predicate places. [2024-11-09 02:34:15,784 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 92 transitions, 929 flow [2024-11-09 02:34:15,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 02:34:15,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:15,785 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:34:15,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 02:34:15,785 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:34:15,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:15,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1412299009, now seen corresponding path program 12 times [2024-11-09 02:34:15,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:15,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897371140] [2024-11-09 02:34:15,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:15,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:16,095 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 02:34:16,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:16,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897371140] [2024-11-09 02:34:16,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897371140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:16,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:16,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 02:34:16,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776236361] [2024-11-09 02:34:16,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:16,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 02:34:16,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:16,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 02:34:16,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 02:34:16,098 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 60 [2024-11-09 02:34:16,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 92 transitions, 929 flow. Second operand has 8 states, 8 states have (on average 25.25) internal successors, (202), 8 states have internal predecessors, (202), 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 02:34:16,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:16,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 60 [2024-11-09 02:34:16,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:16,381 INFO L124 PetriNetUnfolderBase]: 177/380 cut-off events. [2024-11-09 02:34:16,381 INFO L125 PetriNetUnfolderBase]: For 1702/1702 co-relation queries the response was YES. [2024-11-09 02:34:16,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1672 conditions, 380 events. 177/380 cut-off events. For 1702/1702 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1450 event pairs, 10 based on Foata normal form. 18/398 useless extension candidates. Maximal degree in co-relation 1638. Up to 131 conditions per place. [2024-11-09 02:34:16,383 INFO L140 encePairwiseOnDemand]: 50/60 looper letters, 53 selfloop transitions, 41 changer transitions 0/101 dead transitions. [2024-11-09 02:34:16,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 101 transitions, 1047 flow [2024-11-09 02:34:16,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 02:34:16,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-09 02:34:16,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 331 transitions. [2024-11-09 02:34:16,384 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4597222222222222 [2024-11-09 02:34:16,384 INFO L175 Difference]: Start difference. First operand has 119 places, 92 transitions, 929 flow. Second operand 12 states and 331 transitions. [2024-11-09 02:34:16,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 101 transitions, 1047 flow [2024-11-09 02:34:16,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 101 transitions, 894 flow, removed 23 selfloop flow, removed 18 redundant places. [2024-11-09 02:34:16,391 INFO L231 Difference]: Finished difference. Result has 99 places, 83 transitions, 813 flow [2024-11-09 02:34:16,391 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=813, PETRI_PLACES=99, PETRI_TRANSITIONS=83} [2024-11-09 02:34:16,392 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 46 predicate places. [2024-11-09 02:34:16,392 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 83 transitions, 813 flow [2024-11-09 02:34:16,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.25) internal successors, (202), 8 states have internal predecessors, (202), 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 02:34:16,392 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:16,393 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:34:16,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 02:34:16,393 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:34:16,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:16,393 INFO L85 PathProgramCache]: Analyzing trace with hash -372627619, now seen corresponding path program 13 times [2024-11-09 02:34:16,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:16,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182654605] [2024-11-09 02:34:16,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:16,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:17,216 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 02:34:17,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:17,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182654605] [2024-11-09 02:34:17,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182654605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:17,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:17,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 02:34:17,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094668235] [2024-11-09 02:34:17,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:17,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 02:34:17,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:17,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 02:34:17,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-09 02:34:17,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-09 02:34:17,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 83 transitions, 813 flow. Second operand has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 02:34:17,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:17,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-09 02:34:17,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:17,685 INFO L124 PetriNetUnfolderBase]: 234/509 cut-off events. [2024-11-09 02:34:17,685 INFO L125 PetriNetUnfolderBase]: For 2082/2082 co-relation queries the response was YES. [2024-11-09 02:34:17,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2161 conditions, 509 events. 234/509 cut-off events. For 2082/2082 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2160 event pairs, 51 based on Foata normal form. 2/511 useless extension candidates. Maximal degree in co-relation 1984. Up to 238 conditions per place. [2024-11-09 02:34:17,688 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 60 selfloop transitions, 25 changer transitions 39/125 dead transitions. [2024-11-09 02:34:17,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 125 transitions, 1367 flow [2024-11-09 02:34:17,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 02:34:17,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 02:34:17,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 212 transitions. [2024-11-09 02:34:17,689 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2523809523809524 [2024-11-09 02:34:17,689 INFO L175 Difference]: Start difference. First operand has 99 places, 83 transitions, 813 flow. Second operand 14 states and 212 transitions. [2024-11-09 02:34:17,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 125 transitions, 1367 flow [2024-11-09 02:34:17,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 125 transitions, 1258 flow, removed 18 selfloop flow, removed 13 redundant places. [2024-11-09 02:34:17,701 INFO L231 Difference]: Finished difference. Result has 100 places, 73 transitions, 697 flow [2024-11-09 02:34:17,701 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=697, PETRI_PLACES=100, PETRI_TRANSITIONS=73} [2024-11-09 02:34:17,702 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 47 predicate places. [2024-11-09 02:34:17,702 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 73 transitions, 697 flow [2024-11-09 02:34:17,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 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 02:34:17,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:17,703 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:34:17,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 02:34:17,703 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:34:17,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:17,703 INFO L85 PathProgramCache]: Analyzing trace with hash -27326571, now seen corresponding path program 14 times [2024-11-09 02:34:17,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:17,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264122472] [2024-11-09 02:34:17,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:17,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:18,491 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 02:34:18,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:18,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264122472] [2024-11-09 02:34:18,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264122472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:18,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:18,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 02:34:18,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477464811] [2024-11-09 02:34:18,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:18,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 02:34:18,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:18,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 02:34:18,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 02:34:18,525 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-09 02:34:18,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 73 transitions, 697 flow. Second operand has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 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 02:34:18,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:18,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-09 02:34:18,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:18,966 INFO L124 PetriNetUnfolderBase]: 156/343 cut-off events. [2024-11-09 02:34:18,966 INFO L125 PetriNetUnfolderBase]: For 1230/1230 co-relation queries the response was YES. [2024-11-09 02:34:18,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1399 conditions, 343 events. 156/343 cut-off events. For 1230/1230 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1265 event pairs, 22 based on Foata normal form. 2/345 useless extension candidates. Maximal degree in co-relation 1376. Up to 116 conditions per place. [2024-11-09 02:34:18,968 INFO L140 encePairwiseOnDemand]: 48/60 looper letters, 39 selfloop transitions, 19 changer transitions 41/100 dead transitions. [2024-11-09 02:34:18,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 100 transitions, 1006 flow [2024-11-09 02:34:18,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 02:34:18,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-09 02:34:18,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 222 transitions. [2024-11-09 02:34:18,969 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.24666666666666667 [2024-11-09 02:34:18,969 INFO L175 Difference]: Start difference. First operand has 100 places, 73 transitions, 697 flow. Second operand 15 states and 222 transitions. [2024-11-09 02:34:18,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 100 transitions, 1006 flow [2024-11-09 02:34:18,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 100 transitions, 926 flow, removed 2 selfloop flow, removed 15 redundant places. [2024-11-09 02:34:18,974 INFO L231 Difference]: Finished difference. Result has 97 places, 48 transitions, 388 flow [2024-11-09 02:34:18,974 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=388, PETRI_PLACES=97, PETRI_TRANSITIONS=48} [2024-11-09 02:34:18,975 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 44 predicate places. [2024-11-09 02:34:18,975 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 48 transitions, 388 flow [2024-11-09 02:34:18,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 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 02:34:18,976 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:34:18,976 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:34:18,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 02:34:18,976 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2024-11-09 02:34:18,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:34:18,977 INFO L85 PathProgramCache]: Analyzing trace with hash -272510323, now seen corresponding path program 15 times [2024-11-09 02:34:18,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:34:18,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899858541] [2024-11-09 02:34:18,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:34:18,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:34:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:34:19,773 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 02:34:19,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:34:19,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899858541] [2024-11-09 02:34:19,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899858541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:34:19,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:34:19,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 02:34:19,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963789373] [2024-11-09 02:34:19,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:34:19,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 02:34:19,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:34:19,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 02:34:19,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-09 02:34:19,811 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 60 [2024-11-09 02:34:19,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 48 transitions, 388 flow. Second operand has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 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 02:34:19,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:34:19,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 60 [2024-11-09 02:34:19,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:34:20,192 INFO L124 PetriNetUnfolderBase]: 81/182 cut-off events. [2024-11-09 02:34:20,192 INFO L125 PetriNetUnfolderBase]: For 712/712 co-relation queries the response was YES. [2024-11-09 02:34:20,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 182 events. 81/182 cut-off events. For 712/712 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 517 event pairs, 13 based on Foata normal form. 1/183 useless extension candidates. Maximal degree in co-relation 750. Up to 74 conditions per place. [2024-11-09 02:34:20,193 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2024-11-09 02:34:20,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 59 transitions, 541 flow [2024-11-09 02:34:20,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 02:34:20,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-09 02:34:20,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 191 transitions. [2024-11-09 02:34:20,194 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.22738095238095238 [2024-11-09 02:34:20,194 INFO L175 Difference]: Start difference. First operand has 97 places, 48 transitions, 388 flow. Second operand 14 states and 191 transitions. [2024-11-09 02:34:20,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 59 transitions, 541 flow [2024-11-09 02:34:20,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 59 transitions, 323 flow, removed 5 selfloop flow, removed 39 redundant places. [2024-11-09 02:34:20,196 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2024-11-09 02:34:20,196 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2024-11-09 02:34:20,197 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 9 predicate places. [2024-11-09 02:34:20,197 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2024-11-09 02:34:20,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.5) internal successors, (150), 12 states have internal predecessors, (150), 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 02:34:20,200 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2024-11-09 02:34:20,200 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2024-11-09 02:34:20,200 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2024-11-09 02:34:20,201 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2024-11-09 02:34:20,201 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2024-11-09 02:34:20,201 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2024-11-09 02:34:20,201 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-11-09 02:34:20,201 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-11-09 02:34:20,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 02:34:20,202 INFO L407 BasicCegarLoop]: Path program histogram: [15, 6, 1, 1, 1, 1] [2024-11-09 02:34:20,206 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 02:34:20,206 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 02:34:20,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 02:34:20 BasicIcfg [2024-11-09 02:34:20,214 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 02:34:20,215 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 02:34:20,215 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 02:34:20,215 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 02:34:20,216 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:33:46" (3/4) ... [2024-11-09 02:34:20,218 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 02:34:20,222 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2024-11-09 02:34:20,231 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2024-11-09 02:34:20,232 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2024-11-09 02:34:20,232 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-09 02:34:20,232 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 02:34:20,339 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 02:34:20,340 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 02:34:20,340 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 02:34:20,341 INFO L158 Benchmark]: Toolchain (without parser) took 35602.62ms. Allocated memory was 190.8MB in the beginning and 943.7MB in the end (delta: 752.9MB). Free memory was 119.7MB in the beginning and 764.9MB in the end (delta: -645.2MB). Peak memory consumption was 110.8MB. Max. memory is 16.1GB. [2024-11-09 02:34:20,341 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 104.9MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 02:34:20,341 INFO L158 Benchmark]: CACSL2BoogieTranslator took 693.44ms. Allocated memory is still 190.8MB. Free memory was 119.5MB in the beginning and 144.7MB in the end (delta: -25.2MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2024-11-09 02:34:20,342 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.90ms. Allocated memory is still 190.8MB. Free memory was 144.7MB in the beginning and 141.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 02:34:20,342 INFO L158 Benchmark]: Boogie Preprocessor took 57.94ms. Allocated memory is still 190.8MB. Free memory was 141.8MB in the beginning and 137.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 02:34:20,342 INFO L158 Benchmark]: RCFGBuilder took 792.04ms. Allocated memory is still 190.8MB. Free memory was 137.6MB in the beginning and 96.5MB in the end (delta: 41.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-09 02:34:20,342 INFO L158 Benchmark]: TraceAbstraction took 33886.94ms. Allocated memory was 190.8MB in the beginning and 943.7MB in the end (delta: 752.9MB). Free memory was 95.7MB in the beginning and 770.1MB in the end (delta: -674.4MB). Peak memory consumption was 79.2MB. Max. memory is 16.1GB. [2024-11-09 02:34:20,343 INFO L158 Benchmark]: Witness Printer took 125.53ms. Allocated memory is still 943.7MB. Free memory was 770.1MB in the beginning and 764.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 02:34:20,344 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 104.9MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 693.44ms. Allocated memory is still 190.8MB. Free memory was 119.5MB in the beginning and 144.7MB in the end (delta: -25.2MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.90ms. Allocated memory is still 190.8MB. Free memory was 144.7MB in the beginning and 141.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.94ms. Allocated memory is still 190.8MB. Free memory was 141.8MB in the beginning and 137.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 792.04ms. Allocated memory is still 190.8MB. Free memory was 137.6MB in the beginning and 96.5MB in the end (delta: 41.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 33886.94ms. Allocated memory was 190.8MB in the beginning and 943.7MB in the end (delta: 752.9MB). Free memory was 95.7MB in the beginning and 770.1MB in the end (delta: -674.4MB). Peak memory consumption was 79.2MB. Max. memory is 16.1GB. * Witness Printer took 125.53ms. Allocated memory is still 943.7MB. Free memory was 770.1MB in the beginning and 764.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 3885]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 60 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 33.8s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.0s, AutomataDifference: 16.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2810 SdHoareTripleChecker+Valid, 7.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2640 mSDsluCounter, 3770 SdHoareTripleChecker+Invalid, 6.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3700 mSDsCounter, 290 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9678 IncrementalHoareTripleChecker+Invalid, 9968 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 290 mSolverCounterUnsat, 70 mSDtfsCounter, 9678 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 425 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 364 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 874 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3193occurred in iteration=12, InterpolantAutomatonStates: 306, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.4s InterpolantComputationTime, 684 NumberOfCodeBlocks, 684 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 659 ConstructedInterpolants, 0 QuantifiedInterpolants, 6945 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 02:34:20,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE