./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.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 e136f4ab00a1c93eb400bb9f2a21b2887cfec20e18dff1c5960bc25f16f1bcad --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:15:39,913 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:15:39,955 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:15:39,959 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:15:39,959 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:15:39,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:15:39,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:15:39,975 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:15:39,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:15:39,977 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:15:39,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:15:39,978 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:15:39,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:15:39,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:15:39,979 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:15:39,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:15:39,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:15:39,982 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:15:39,983 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:15:39,984 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:15:39,984 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:15:39,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:15:39,985 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:15:39,985 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:15:39,985 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:15:39,986 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:15:39,986 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:15:39,987 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:15:39,987 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:15:39,987 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:15:39,987 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:15:39,988 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:15:39,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:15:39,988 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:15:40,008 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:15:40,008 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:15:40,008 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:15:40,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:15:40,008 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:15:40,008 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:15:40,009 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:15:40,010 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:15:40,010 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e136f4ab00a1c93eb400bb9f2a21b2887cfec20e18dff1c5960bc25f16f1bcad [2024-11-16 19:15:40,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:15:40,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:15:40,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:15:40,287 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:15:40,288 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:15:40,288 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-16 19:15:41,634 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:15:41,842 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:15:41,843 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-16 19:15:41,859 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00df545b0/b556edeb1fc64e0cb678b939f188adda/FLAGa5a9e0409 [2024-11-16 19:15:41,872 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00df545b0/b556edeb1fc64e0cb678b939f188adda [2024-11-16 19:15:41,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:15:41,878 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:15:41,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:15:41,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:15:41,885 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:15:41,886 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:15:41" (1/1) ... [2024-11-16 19:15:41,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@327c827c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:41, skipping insertion in model container [2024-11-16 19:15:41,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:15:41" (1/1) ... [2024-11-16 19:15:41,925 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:15:42,094 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-16 19:15:42,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:15:42,230 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:15:42,239 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-16 19:15:42,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:15:42,295 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:15:42,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:42 WrapperNode [2024-11-16 19:15:42,296 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:15:42,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:15:42,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:15:42,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:15:42,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:42" (1/1) ... [2024-11-16 19:15:42,318 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:42" (1/1) ... [2024-11-16 19:15:42,339 INFO L138 Inliner]: procedures = 175, calls = 39, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2024-11-16 19:15:42,339 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:15:42,340 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:15:42,340 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:15:42,340 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:15:42,351 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:42" (1/1) ... [2024-11-16 19:15:42,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:42" (1/1) ... [2024-11-16 19:15:42,353 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:42" (1/1) ... [2024-11-16 19:15:42,376 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 19:15:42,376 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:42" (1/1) ... [2024-11-16 19:15:42,376 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:42" (1/1) ... [2024-11-16 19:15:42,379 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:42" (1/1) ... [2024-11-16 19:15:42,380 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:42" (1/1) ... [2024-11-16 19:15:42,381 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:42" (1/1) ... [2024-11-16 19:15:42,382 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:42" (1/1) ... [2024-11-16 19:15:42,383 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:15:42,384 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:15:42,384 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:15:42,384 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:15:42,385 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:42" (1/1) ... [2024-11-16 19:15:42,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:15:42,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:15:42,437 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) [2024-11-16 19:15:42,441 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 [2024-11-16 19:15:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-16 19:15:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:15:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-16 19:15:42,487 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-16 19:15:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-16 19:15:42,487 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-16 19:15:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-16 19:15:42,487 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-16 19:15:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:15:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-16 19:15:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:15:42,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:15:42,490 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 19:15:42,696 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:15:42,699 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:15:42,858 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:15:42,858 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:15:42,926 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:15:42,926 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:15:42,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:15:42 BoogieIcfgContainer [2024-11-16 19:15:42,927 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:15:42,928 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:15:42,928 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:15:42,931 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:15:42,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:15:41" (1/3) ... [2024-11-16 19:15:42,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a41792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:15:42, skipping insertion in model container [2024-11-16 19:15:42,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:42" (2/3) ... [2024-11-16 19:15:42,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a41792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:15:42, skipping insertion in model container [2024-11-16 19:15:42,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:15:42" (3/3) ... [2024-11-16 19:15:42,935 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-16 19:15:42,950 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:15:42,950 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:15:42,950 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:15:42,993 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 19:15:43,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 37 transitions, 86 flow [2024-11-16 19:15:43,049 INFO L124 PetriNetUnfolderBase]: 1/34 cut-off events. [2024-11-16 19:15:43,050 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:15:43,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 34 events. 1/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 57 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2024-11-16 19:15:43,052 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 37 transitions, 86 flow [2024-11-16 19:15:43,055 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 31 transitions, 71 flow [2024-11-16 19:15:43,063 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:15:43,069 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;@2f85f758, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:15:43,069 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-16 19:15:43,079 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:15:43,080 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-11-16 19:15:43,080 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:15:43,080 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:15:43,081 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:15:43,081 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:15:43,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:15:43,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1991997718, now seen corresponding path program 1 times [2024-11-16 19:15:43,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:15:43,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609358732] [2024-11-16 19:15:43,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:15:43,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:15:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:15:43,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:15:43,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:15:43,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609358732] [2024-11-16 19:15:43,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609358732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:15:43,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:15:43,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:15:43,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724066828] [2024-11-16 19:15:43,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:15:43,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:15:43,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:15:43,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:15:43,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:15:43,586 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2024-11-16 19:15:43,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 71 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-11-16 19:15:43,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:15:43,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2024-11-16 19:15:43,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:15:44,327 INFO L124 PetriNetUnfolderBase]: 4152/6189 cut-off events. [2024-11-16 19:15:44,328 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-11-16 19:15:44,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12278 conditions, 6189 events. 4152/6189 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 33409 event pairs, 1519 based on Foata normal form. 180/6365 useless extension candidates. Maximal degree in co-relation 12267. Up to 4876 conditions per place. [2024-11-16 19:15:44,368 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 38 selfloop transitions, 3 changer transitions 43/88 dead transitions. [2024-11-16 19:15:44,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 88 transitions, 359 flow [2024-11-16 19:15:44,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 19:15:44,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-16 19:15:44,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 135 transitions. [2024-11-16 19:15:44,378 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5212355212355212 [2024-11-16 19:15:44,380 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 71 flow. Second operand 7 states and 135 transitions. [2024-11-16 19:15:44,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 88 transitions, 359 flow [2024-11-16 19:15:44,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 88 transitions, 354 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-16 19:15:44,385 INFO L231 Difference]: Finished difference. Result has 49 places, 33 transitions, 103 flow [2024-11-16 19:15:44,387 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=103, PETRI_PLACES=49, PETRI_TRANSITIONS=33} [2024-11-16 19:15:44,390 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 8 predicate places. [2024-11-16 19:15:44,390 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 33 transitions, 103 flow [2024-11-16 19:15:44,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-11-16 19:15:44,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:15:44,391 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:15:44,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:15:44,391 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:15:44,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:15:44,392 INFO L85 PathProgramCache]: Analyzing trace with hash -898930345, now seen corresponding path program 1 times [2024-11-16 19:15:44,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:15:44,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783361326] [2024-11-16 19:15:44,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:15:44,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:15:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:15:44,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:15:44,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:15:44,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783361326] [2024-11-16 19:15:44,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783361326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:15:44,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:15:44,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:15:44,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363423640] [2024-11-16 19:15:44,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:15:44,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:15:44,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:15:44,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:15:44,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:15:44,611 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2024-11-16 19:15:44,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 33 transitions, 103 flow. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2024-11-16 19:15:44,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:15:44,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2024-11-16 19:15:44,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:15:45,334 INFO L124 PetriNetUnfolderBase]: 3849/5731 cut-off events. [2024-11-16 19:15:45,334 INFO L125 PetriNetUnfolderBase]: For 2782/2782 co-relation queries the response was YES. [2024-11-16 19:15:45,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13710 conditions, 5731 events. 3849/5731 cut-off events. For 2782/2782 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 30059 event pairs, 684 based on Foata normal form. 150/5869 useless extension candidates. Maximal degree in co-relation 13695. Up to 4121 conditions per place. [2024-11-16 19:15:45,359 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 38 selfloop transitions, 3 changer transitions 45/90 dead transitions. [2024-11-16 19:15:45,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 90 transitions, 411 flow [2024-11-16 19:15:45,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 19:15:45,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-16 19:15:45,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 136 transitions. [2024-11-16 19:15:45,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.525096525096525 [2024-11-16 19:15:45,363 INFO L175 Difference]: Start difference. First operand has 49 places, 33 transitions, 103 flow. Second operand 7 states and 136 transitions. [2024-11-16 19:15:45,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 90 transitions, 411 flow [2024-11-16 19:15:45,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 90 transitions, 394 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-16 19:15:45,393 INFO L231 Difference]: Finished difference. Result has 53 places, 33 transitions, 113 flow [2024-11-16 19:15:45,394 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=113, PETRI_PLACES=53, PETRI_TRANSITIONS=33} [2024-11-16 19:15:45,394 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 12 predicate places. [2024-11-16 19:15:45,395 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 33 transitions, 113 flow [2024-11-16 19:15:45,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2024-11-16 19:15:45,395 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:15:45,395 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:15:45,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:15:45,395 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:15:45,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:15:45,398 INFO L85 PathProgramCache]: Analyzing trace with hash -573850953, now seen corresponding path program 1 times [2024-11-16 19:15:45,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:15:45,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2771190] [2024-11-16 19:15:45,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:15:45,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:15:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:15:45,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:15:45,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:15:45,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2771190] [2024-11-16 19:15:45,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2771190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:15:45,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:15:45,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:15:45,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996622368] [2024-11-16 19:15:45,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:15:45,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:15:45,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:15:45,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:15:45,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:15:45,517 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2024-11-16 19:15:45,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 33 transitions, 113 flow. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2024-11-16 19:15:45,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:15:45,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2024-11-16 19:15:45,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:15:46,362 INFO L124 PetriNetUnfolderBase]: 6017/8848 cut-off events. [2024-11-16 19:15:46,363 INFO L125 PetriNetUnfolderBase]: For 6378/6378 co-relation queries the response was YES. [2024-11-16 19:15:46,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21537 conditions, 8848 events. 6017/8848 cut-off events. For 6378/6378 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 49044 event pairs, 1053 based on Foata normal form. 275/9121 useless extension candidates. Maximal degree in co-relation 21518. Up to 4049 conditions per place. [2024-11-16 19:15:46,401 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 68 selfloop transitions, 11 changer transitions 96/179 dead transitions. [2024-11-16 19:15:46,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 179 transitions, 861 flow [2024-11-16 19:15:46,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 19:15:46,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-16 19:15:46,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 268 transitions. [2024-11-16 19:15:46,405 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5571725571725572 [2024-11-16 19:15:46,405 INFO L175 Difference]: Start difference. First operand has 53 places, 33 transitions, 113 flow. Second operand 13 states and 268 transitions. [2024-11-16 19:15:46,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 179 transitions, 861 flow [2024-11-16 19:15:46,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 179 transitions, 815 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-11-16 19:15:46,473 INFO L231 Difference]: Finished difference. Result has 66 places, 41 transitions, 209 flow [2024-11-16 19:15:46,473 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=209, PETRI_PLACES=66, PETRI_TRANSITIONS=41} [2024-11-16 19:15:46,474 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 25 predicate places. [2024-11-16 19:15:46,474 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 41 transitions, 209 flow [2024-11-16 19:15:46,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 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) [2024-11-16 19:15:46,475 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:15:46,475 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:15:46,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:15:46,475 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:15:46,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:15:46,476 INFO L85 PathProgramCache]: Analyzing trace with hash 332958894, now seen corresponding path program 1 times [2024-11-16 19:15:46,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:15:46,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916660753] [2024-11-16 19:15:46,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:15:46,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:15:46,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:15:46,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:15:46,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:15:46,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916660753] [2024-11-16 19:15:46,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916660753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:15:46,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:15:46,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:15:46,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071571038] [2024-11-16 19:15:46,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:15:46,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:15:46,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:15:46,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:15:46,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:15:46,660 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2024-11-16 19:15:46,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 41 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2024-11-16 19:15:46,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:15:46,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2024-11-16 19:15:46,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:15:47,514 INFO L124 PetriNetUnfolderBase]: 5722/8321 cut-off events. [2024-11-16 19:15:47,514 INFO L125 PetriNetUnfolderBase]: For 22049/22052 co-relation queries the response was YES. [2024-11-16 19:15:47,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25461 conditions, 8321 events. 5722/8321 cut-off events. For 22049/22052 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 45479 event pairs, 304 based on Foata normal form. 125/8439 useless extension candidates. Maximal degree in co-relation 25435. Up to 5445 conditions per place. [2024-11-16 19:15:47,558 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 78 selfloop transitions, 12 changer transitions 71/165 dead transitions. [2024-11-16 19:15:47,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 165 transitions, 1078 flow [2024-11-16 19:15:47,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 19:15:47,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-16 19:15:47,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 240 transitions. [2024-11-16 19:15:47,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.498960498960499 [2024-11-16 19:15:47,561 INFO L175 Difference]: Start difference. First operand has 66 places, 41 transitions, 209 flow. Second operand 13 states and 240 transitions. [2024-11-16 19:15:47,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 165 transitions, 1078 flow [2024-11-16 19:15:47,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 165 transitions, 958 flow, removed 60 selfloop flow, removed 6 redundant places. [2024-11-16 19:15:47,591 INFO L231 Difference]: Finished difference. Result has 75 places, 48 transitions, 324 flow [2024-11-16 19:15:47,591 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=324, PETRI_PLACES=75, PETRI_TRANSITIONS=48} [2024-11-16 19:15:47,592 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 34 predicate places. [2024-11-16 19:15:47,593 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 48 transitions, 324 flow [2024-11-16 19:15:47,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2024-11-16 19:15:47,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:15:47,593 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:15:47,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:15:47,594 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:15:47,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:15:47,594 INFO L85 PathProgramCache]: Analyzing trace with hash -527388232, now seen corresponding path program 1 times [2024-11-16 19:15:47,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:15:47,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672453303] [2024-11-16 19:15:47,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:15:47,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:15:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:15:47,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:15:47,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:15:47,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672453303] [2024-11-16 19:15:47,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672453303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:15:47,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:15:47,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:15:47,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750085635] [2024-11-16 19:15:47,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:15:47,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:15:47,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:15:47,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:15:47,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:15:47,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2024-11-16 19:15:47,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 48 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2024-11-16 19:15:47,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:15:47,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2024-11-16 19:15:47,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:15:48,234 INFO L124 PetriNetUnfolderBase]: 4377/6467 cut-off events. [2024-11-16 19:15:48,234 INFO L125 PetriNetUnfolderBase]: For 27445/27445 co-relation queries the response was YES. [2024-11-16 19:15:48,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23024 conditions, 6467 events. 4377/6467 cut-off events. For 27445/27445 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 33274 event pairs, 2044 based on Foata normal form. 136/6599 useless extension candidates. Maximal degree in co-relation 22991. Up to 4910 conditions per place. [2024-11-16 19:15:48,271 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 51 selfloop transitions, 9 changer transitions 49/113 dead transitions. [2024-11-16 19:15:48,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 113 transitions, 869 flow [2024-11-16 19:15:48,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 19:15:48,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-16 19:15:48,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 136 transitions. [2024-11-16 19:15:48,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.525096525096525 [2024-11-16 19:15:48,273 INFO L175 Difference]: Start difference. First operand has 75 places, 48 transitions, 324 flow. Second operand 7 states and 136 transitions. [2024-11-16 19:15:48,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 113 transitions, 869 flow [2024-11-16 19:15:48,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 113 transitions, 767 flow, removed 46 selfloop flow, removed 9 redundant places. [2024-11-16 19:15:48,405 INFO L231 Difference]: Finished difference. Result has 69 places, 48 transitions, 322 flow [2024-11-16 19:15:48,405 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=322, PETRI_PLACES=69, PETRI_TRANSITIONS=48} [2024-11-16 19:15:48,406 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 28 predicate places. [2024-11-16 19:15:48,406 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 48 transitions, 322 flow [2024-11-16 19:15:48,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2024-11-16 19:15:48,406 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:15:48,407 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:15:48,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 19:15:48,407 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:15:48,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:15:48,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1550563972, now seen corresponding path program 1 times [2024-11-16 19:15:48,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:15:48,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749103997] [2024-11-16 19:15:48,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:15:48,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:15:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:15:48,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:15:48,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:15:48,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749103997] [2024-11-16 19:15:48,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749103997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:15:48,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:15:48,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 19:15:48,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925575268] [2024-11-16 19:15:48,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:15:48,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 19:15:48,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:15:48,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 19:15:48,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 19:15:48,513 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2024-11-16 19:15:48,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 48 transitions, 322 flow. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2024-11-16 19:15:48,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:15:48,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2024-11-16 19:15:48,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:15:49,181 INFO L124 PetriNetUnfolderBase]: 5486/8030 cut-off events. [2024-11-16 19:15:49,182 INFO L125 PetriNetUnfolderBase]: For 17635/17635 co-relation queries the response was YES. [2024-11-16 19:15:49,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24898 conditions, 8030 events. 5486/8030 cut-off events. For 17635/17635 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 42735 event pairs, 966 based on Foata normal form. 120/8147 useless extension candidates. Maximal degree in co-relation 24867. Up to 3371 conditions per place. [2024-11-16 19:15:49,210 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 51 selfloop transitions, 6 changer transitions 66/127 dead transitions. [2024-11-16 19:15:49,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 127 transitions, 898 flow [2024-11-16 19:15:49,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 19:15:49,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-16 19:15:49,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2024-11-16 19:15:49,212 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.543918918918919 [2024-11-16 19:15:49,212 INFO L175 Difference]: Start difference. First operand has 69 places, 48 transitions, 322 flow. Second operand 8 states and 161 transitions. [2024-11-16 19:15:49,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 127 transitions, 898 flow [2024-11-16 19:15:49,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 127 transitions, 840 flow, removed 20 selfloop flow, removed 8 redundant places. [2024-11-16 19:15:49,276 INFO L231 Difference]: Finished difference. Result has 70 places, 40 transitions, 235 flow [2024-11-16 19:15:49,276 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=235, PETRI_PLACES=70, PETRI_TRANSITIONS=40} [2024-11-16 19:15:49,277 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 29 predicate places. [2024-11-16 19:15:49,277 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 40 transitions, 235 flow [2024-11-16 19:15:49,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2024-11-16 19:15:49,277 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:15:49,277 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] [2024-11-16 19:15:49,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 19:15:49,277 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:15:49,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:15:49,278 INFO L85 PathProgramCache]: Analyzing trace with hash -227931775, now seen corresponding path program 1 times [2024-11-16 19:15:49,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:15:49,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843989117] [2024-11-16 19:15:49,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:15:49,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:15:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:15:49,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:15:49,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:15:49,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843989117] [2024-11-16 19:15:49,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843989117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:15:49,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:15:49,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 19:15:49,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486495324] [2024-11-16 19:15:49,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:15:49,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 19:15:49,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:15:49,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 19:15:49,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 19:15:49,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2024-11-16 19:15:49,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 40 transitions, 235 flow. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2024-11-16 19:15:49,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:15:49,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2024-11-16 19:15:49,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:15:50,081 INFO L124 PetriNetUnfolderBase]: 3851/5703 cut-off events. [2024-11-16 19:15:50,082 INFO L125 PetriNetUnfolderBase]: For 15476/15476 co-relation queries the response was YES. [2024-11-16 19:15:50,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17448 conditions, 5703 events. 3851/5703 cut-off events. For 15476/15476 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 28054 event pairs, 765 based on Foata normal form. 100/5795 useless extension candidates. Maximal degree in co-relation 17417. Up to 2113 conditions per place. [2024-11-16 19:15:50,102 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 41 selfloop transitions, 3 changer transitions 57/105 dead transitions. [2024-11-16 19:15:50,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 105 transitions, 691 flow [2024-11-16 19:15:50,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 19:15:50,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-16 19:15:50,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2024-11-16 19:15:50,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5101351351351351 [2024-11-16 19:15:50,104 INFO L175 Difference]: Start difference. First operand has 70 places, 40 transitions, 235 flow. Second operand 8 states and 151 transitions. [2024-11-16 19:15:50,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 105 transitions, 691 flow [2024-11-16 19:15:50,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 105 transitions, 598 flow, removed 36 selfloop flow, removed 10 redundant places. [2024-11-16 19:15:50,132 INFO L231 Difference]: Finished difference. Result has 69 places, 31 transitions, 144 flow [2024-11-16 19:15:50,132 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=144, PETRI_PLACES=69, PETRI_TRANSITIONS=31} [2024-11-16 19:15:50,133 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 28 predicate places. [2024-11-16 19:15:50,133 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 31 transitions, 144 flow [2024-11-16 19:15:50,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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) [2024-11-16 19:15:50,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:15:50,133 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] [2024-11-16 19:15:50,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 19:15:50,134 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:15:50,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:15:50,134 INFO L85 PathProgramCache]: Analyzing trace with hash 666462734, now seen corresponding path program 1 times [2024-11-16 19:15:50,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:15:50,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447310348] [2024-11-16 19:15:50,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:15:50,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:15:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:15:50,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:15:50,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:15:50,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447310348] [2024-11-16 19:15:50,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447310348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:15:50,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:15:50,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:15:50,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280360382] [2024-11-16 19:15:50,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:15:50,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:15:50,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:15:50,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:15:50,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:15:50,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 37 [2024-11-16 19:15:50,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 31 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:15:50,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:15:50,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 37 [2024-11-16 19:15:50,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:15:50,451 INFO L124 PetriNetUnfolderBase]: 1527/2383 cut-off events. [2024-11-16 19:15:50,452 INFO L125 PetriNetUnfolderBase]: For 3904/3904 co-relation queries the response was YES. [2024-11-16 19:15:50,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6776 conditions, 2383 events. 1527/2383 cut-off events. For 3904/3904 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 11233 event pairs, 173 based on Foata normal form. 105/2486 useless extension candidates. Maximal degree in co-relation 6747. Up to 1447 conditions per place. [2024-11-16 19:15:50,461 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 48 selfloop transitions, 5 changer transitions 1/58 dead transitions. [2024-11-16 19:15:50,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 58 transitions, 376 flow [2024-11-16 19:15:50,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:15:50,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:15:50,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2024-11-16 19:15:50,462 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5945945945945946 [2024-11-16 19:15:50,463 INFO L175 Difference]: Start difference. First operand has 69 places, 31 transitions, 144 flow. Second operand 4 states and 88 transitions. [2024-11-16 19:15:50,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 58 transitions, 376 flow [2024-11-16 19:15:50,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 58 transitions, 276 flow, removed 21 selfloop flow, removed 19 redundant places. [2024-11-16 19:15:50,469 INFO L231 Difference]: Finished difference. Result has 49 places, 34 transitions, 124 flow [2024-11-16 19:15:50,469 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=124, PETRI_PLACES=49, PETRI_TRANSITIONS=34} [2024-11-16 19:15:50,469 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 8 predicate places. [2024-11-16 19:15:50,469 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 34 transitions, 124 flow [2024-11-16 19:15:50,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:15:50,470 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:15:50,470 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:15:50,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 19:15:50,470 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:15:50,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:15:50,471 INFO L85 PathProgramCache]: Analyzing trace with hash -817473551, now seen corresponding path program 1 times [2024-11-16 19:15:50,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:15:50,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974958657] [2024-11-16 19:15:50,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:15:50,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:15:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:15:50,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:15:50,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:15:50,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974958657] [2024-11-16 19:15:50,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974958657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:15:50,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:15:50,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:15:50,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787202709] [2024-11-16 19:15:50,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:15:50,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:15:50,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:15:50,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:15:50,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:15:50,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 37 [2024-11-16 19:15:50,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 34 transitions, 124 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:15:50,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:15:50,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 37 [2024-11-16 19:15:50,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:15:50,676 INFO L124 PetriNetUnfolderBase]: 956/1531 cut-off events. [2024-11-16 19:15:50,676 INFO L125 PetriNetUnfolderBase]: For 872/872 co-relation queries the response was YES. [2024-11-16 19:15:50,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4018 conditions, 1531 events. 956/1531 cut-off events. For 872/872 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6499 event pairs, 88 based on Foata normal form. 84/1613 useless extension candidates. Maximal degree in co-relation 4002. Up to 661 conditions per place. [2024-11-16 19:15:50,683 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 55 selfloop transitions, 8 changer transitions 1/68 dead transitions. [2024-11-16 19:15:50,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 68 transitions, 364 flow [2024-11-16 19:15:50,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:15:50,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 19:15:50,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 106 transitions. [2024-11-16 19:15:50,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.572972972972973 [2024-11-16 19:15:50,685 INFO L175 Difference]: Start difference. First operand has 49 places, 34 transitions, 124 flow. Second operand 5 states and 106 transitions. [2024-11-16 19:15:50,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 68 transitions, 364 flow [2024-11-16 19:15:50,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 68 transitions, 354 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-16 19:15:50,687 INFO L231 Difference]: Finished difference. Result has 53 places, 37 transitions, 164 flow [2024-11-16 19:15:50,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=164, PETRI_PLACES=53, PETRI_TRANSITIONS=37} [2024-11-16 19:15:50,688 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 12 predicate places. [2024-11-16 19:15:50,688 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 37 transitions, 164 flow [2024-11-16 19:15:50,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:15:50,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:15:50,689 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:15:50,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 19:15:50,689 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:15:50,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:15:50,690 INFO L85 PathProgramCache]: Analyzing trace with hash -827128956, now seen corresponding path program 1 times [2024-11-16 19:15:50,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:15:50,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349769423] [2024-11-16 19:15:50,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:15:50,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:15:50,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:15:50,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:15:50,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:15:50,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349769423] [2024-11-16 19:15:50,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349769423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:15:50,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:15:50,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:15:50,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228965895] [2024-11-16 19:15:50,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:15:50,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:15:50,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:15:50,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:15:50,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:15:50,777 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 37 [2024-11-16 19:15:50,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 37 transitions, 164 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2024-11-16 19:15:50,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:15:50,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 37 [2024-11-16 19:15:50,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:15:50,905 INFO L124 PetriNetUnfolderBase]: 522/845 cut-off events. [2024-11-16 19:15:50,906 INFO L125 PetriNetUnfolderBase]: For 960/960 co-relation queries the response was YES. [2024-11-16 19:15:50,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2406 conditions, 845 events. 522/845 cut-off events. For 960/960 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3036 event pairs, 70 based on Foata normal form. 40/883 useless extension candidates. Maximal degree in co-relation 2388. Up to 284 conditions per place. [2024-11-16 19:15:50,910 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 48 selfloop transitions, 11 changer transitions 1/64 dead transitions. [2024-11-16 19:15:50,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 64 transitions, 363 flow [2024-11-16 19:15:50,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 19:15:50,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 19:15:50,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 110 transitions. [2024-11-16 19:15:50,911 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4954954954954955 [2024-11-16 19:15:50,911 INFO L175 Difference]: Start difference. First operand has 53 places, 37 transitions, 164 flow. Second operand 6 states and 110 transitions. [2024-11-16 19:15:50,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 64 transitions, 363 flow [2024-11-16 19:15:50,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 64 transitions, 305 flow, removed 17 selfloop flow, removed 8 redundant places. [2024-11-16 19:15:50,914 INFO L231 Difference]: Finished difference. Result has 52 places, 37 transitions, 160 flow [2024-11-16 19:15:50,915 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=160, PETRI_PLACES=52, PETRI_TRANSITIONS=37} [2024-11-16 19:15:50,915 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 11 predicate places. [2024-11-16 19:15:50,915 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 37 transitions, 160 flow [2024-11-16 19:15:50,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2024-11-16 19:15:50,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:15:50,916 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:15:50,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 19:15:50,916 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-16 19:15:50,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:15:50,917 INFO L85 PathProgramCache]: Analyzing trace with hash 359051555, now seen corresponding path program 1 times [2024-11-16 19:15:50,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:15:50,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123324589] [2024-11-16 19:15:50,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:15:50,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:15:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:15:51,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:15:51,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:15:51,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123324589] [2024-11-16 19:15:51,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123324589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:15:51,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:15:51,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 19:15:51,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556391868] [2024-11-16 19:15:51,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:15:51,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:15:51,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:15:51,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:15:51,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:15:51,018 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2024-11-16 19:15:51,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 37 transitions, 160 flow. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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) [2024-11-16 19:15:51,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:15:51,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2024-11-16 19:15:51,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:15:51,125 INFO L124 PetriNetUnfolderBase]: 442/708 cut-off events. [2024-11-16 19:15:51,126 INFO L125 PetriNetUnfolderBase]: For 714/714 co-relation queries the response was YES. [2024-11-16 19:15:51,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1922 conditions, 708 events. 442/708 cut-off events. For 714/714 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2361 event pairs, 82 based on Foata normal form. 8/716 useless extension candidates. Maximal degree in co-relation 1907. Up to 444 conditions per place. [2024-11-16 19:15:51,128 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 0 selfloop transitions, 0 changer transitions 53/53 dead transitions. [2024-11-16 19:15:51,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 53 transitions, 318 flow [2024-11-16 19:15:51,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 19:15:51,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 19:15:51,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 85 transitions. [2024-11-16 19:15:51,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38288288288288286 [2024-11-16 19:15:51,129 INFO L175 Difference]: Start difference. First operand has 52 places, 37 transitions, 160 flow. Second operand 6 states and 85 transitions. [2024-11-16 19:15:51,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 53 transitions, 318 flow [2024-11-16 19:15:51,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 53 transitions, 246 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-11-16 19:15:51,131 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2024-11-16 19:15:51,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2024-11-16 19:15:51,131 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 6 predicate places. [2024-11-16 19:15:51,131 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2024-11-16 19:15:51,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 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) [2024-11-16 19:15:51,134 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-16 19:15:51,135 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-16 19:15:51,135 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-16 19:15:51,135 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-16 19:15:51,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 19:15:51,135 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:15:51,138 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 19:15:51,138 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 19:15:51,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:15:51 BasicIcfg [2024-11-16 19:15:51,142 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 19:15:51,142 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 19:15:51,142 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 19:15:51,143 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 19:15:51,143 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:15:42" (3/4) ... [2024-11-16 19:15:51,145 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 19:15:51,147 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-16 19:15:51,148 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-16 19:15:51,148 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-16 19:15:51,150 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-11-16 19:15:51,151 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-16 19:15:51,151 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-16 19:15:51,151 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 19:15:51,234 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 19:15:51,235 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 19:15:51,235 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 19:15:51,235 INFO L158 Benchmark]: Toolchain (without parser) took 9357.69ms. Allocated memory was 209.7MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 160.3MB in the beginning and 1.9GB in the end (delta: -1.7GB). Peak memory consumption was 307.6MB. Max. memory is 16.1GB. [2024-11-16 19:15:51,235 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 107.0MB. Free memory was 69.7MB in the beginning and 69.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:15:51,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.88ms. Allocated memory is still 209.7MB. Free memory was 160.3MB in the beginning and 137.6MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-16 19:15:51,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.17ms. Allocated memory is still 209.7MB. Free memory was 137.6MB in the beginning and 135.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 19:15:51,236 INFO L158 Benchmark]: Boogie Preprocessor took 43.64ms. Allocated memory is still 209.7MB. Free memory was 135.6MB in the beginning and 133.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 19:15:51,236 INFO L158 Benchmark]: IcfgBuilder took 542.62ms. Allocated memory is still 209.7MB. Free memory was 133.5MB in the beginning and 160.1MB in the end (delta: -26.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-16 19:15:51,237 INFO L158 Benchmark]: TraceAbstraction took 8213.72ms. Allocated memory was 209.7MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 160.1MB in the beginning and 1.9GB in the end (delta: -1.7GB). Peak memory consumption was 305.9MB. Max. memory is 16.1GB. [2024-11-16 19:15:51,237 INFO L158 Benchmark]: Witness Printer took 92.34ms. Allocated memory is still 2.2GB. Free memory was 1.9GB in the beginning and 1.9GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 19:15:51,238 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 107.0MB. Free memory was 69.7MB in the beginning and 69.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 415.88ms. Allocated memory is still 209.7MB. Free memory was 160.3MB in the beginning and 137.6MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.17ms. Allocated memory is still 209.7MB. Free memory was 137.6MB in the beginning and 135.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.64ms. Allocated memory is still 209.7MB. Free memory was 135.6MB in the beginning and 133.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 542.62ms. Allocated memory is still 209.7MB. Free memory was 133.5MB in the beginning and 160.1MB in the end (delta: -26.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8213.72ms. Allocated memory was 209.7MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 160.1MB in the beginning and 1.9GB in the end (delta: -1.7GB). Peak memory consumption was 305.9MB. Max. memory is 16.1GB. * Witness Printer took 92.34ms. Allocated memory is still 2.2GB. Free memory was 1.9GB in the beginning and 1.9GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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 7 procedures, 60 locations, 4 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: 8.1s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 885 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 880 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1788 IncrementalHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 2 mSDtfsCounter, 1788 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=324occurred in iteration=4, InterpolantAutomatonStates: 84, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 207 ConstructedInterpolants, 0 QuantifiedInterpolants, 813 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-16 19:15:51,258 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