./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe019_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 4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:18:52,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:18:52,331 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:18:52,335 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:18:52,336 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:18:52,373 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:18:52,374 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:18:52,374 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:18:52,375 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:18:52,376 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:18:52,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:18:52,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:18:52,378 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:18:52,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:18:52,380 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:18:52,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:18:52,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:18:52,381 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:18:52,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:18:52,382 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:18:52,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:18:52,386 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:18:52,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:18:52,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:18:52,387 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:18:52,387 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:18:52,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:18:52,387 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:18:52,388 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:18:52,388 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:18:52,388 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:18:52,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:18:52,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:18:52,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:18:52,390 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:18:52,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:18:52,391 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:18:52,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:18:52,391 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:18:52,392 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:18:52,392 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:18:52,392 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:18:52,393 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b [2024-11-10 10:18:52,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:18:52,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:18:52,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:18:52,711 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:18:52,713 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:18:52,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-10 10:18:54,246 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:18:54,523 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:18:54,524 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-10 10:18:54,545 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a13b8efae/d3ea8695c6cb44b48d0b22009f372bc2/FLAGb7ffd51d9 [2024-11-10 10:18:54,559 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a13b8efae/d3ea8695c6cb44b48d0b22009f372bc2 [2024-11-10 10:18:54,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:18:54,563 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:18:54,564 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:18:54,564 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:18:54,574 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:18:54,575 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:18:54" (1/1) ... [2024-11-10 10:18:54,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc12519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:18:54, skipping insertion in model container [2024-11-10 10:18:54,576 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:18:54" (1/1) ... [2024-11-10 10:18:54,628 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:18:54,834 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/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-10 10:18:55,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:18:55,048 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:18:55,063 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/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-10 10:18:55,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:18:55,161 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:18:55,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:18:55 WrapperNode [2024-11-10 10:18:55,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:18:55,164 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:18:55,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:18:55,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:18:55,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:18:55" (1/1) ... [2024-11-10 10:18:55,195 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:18:55" (1/1) ... [2024-11-10 10:18:55,222 INFO L138 Inliner]: procedures = 176, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2024-11-10 10:18:55,224 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:18:55,225 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:18:55,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:18:55,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:18:55,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:18:55" (1/1) ... [2024-11-10 10:18:55,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:18:55" (1/1) ... [2024-11-10 10:18:55,240 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:18:55" (1/1) ... [2024-11-10 10:18:55,272 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]. [2024-11-10 10:18:55,272 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:18:55" (1/1) ... [2024-11-10 10:18:55,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:18:55" (1/1) ... [2024-11-10 10:18:55,281 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:18:55" (1/1) ... [2024-11-10 10:18:55,286 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:18:55" (1/1) ... [2024-11-10 10:18:55,287 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:18:55" (1/1) ... [2024-11-10 10:18:55,293 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:18:55" (1/1) ... [2024-11-10 10:18:55,297 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:18:55,300 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:18:55,300 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:18:55,300 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:18:55,301 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:18:55" (1/1) ... [2024-11-10 10:18:55,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:18:55,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:18:55,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 10:18:55,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 10:18:55,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 10:18:55,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:18:55,408 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-10 10:18:55,408 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-10 10:18:55,408 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-10 10:18:55,408 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-10 10:18:55,408 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-10 10:18:55,410 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-10 10:18:55,410 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-10 10:18:55,411 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-10 10:18:55,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:18:55,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 10:18:55,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:18:55,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:18:55,413 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 10:18:55,563 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:18:55,566 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:18:55,880 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 10:18:55,880 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:18:55,987 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:18:55,988 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:18:55,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:18:55 BoogieIcfgContainer [2024-11-10 10:18:55,989 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:18:55,994 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:18:55,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:18:55,999 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:18:55,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:18:54" (1/3) ... [2024-11-10 10:18:56,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e5e390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:18:55, skipping insertion in model container [2024-11-10 10:18:56,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:18:55" (2/3) ... [2024-11-10 10:18:56,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e5e390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:18:56, skipping insertion in model container [2024-11-10 10:18:56,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:18:55" (3/3) ... [2024-11-10 10:18:56,003 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-10 10:18:56,021 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:18:56,021 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:18:56,021 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 10:18:56,103 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 10:18:56,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 45 transitions, 106 flow [2024-11-10 10:18:56,191 INFO L124 PetriNetUnfolderBase]: 1/41 cut-off events. [2024-11-10 10:18:56,194 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:18:56,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 41 events. 1/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-11-10 10:18:56,198 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 45 transitions, 106 flow [2024-11-10 10:18:56,203 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 38 transitions, 88 flow [2024-11-10 10:18:56,217 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:18:56,229 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;@676f0e95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:18:56,230 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-10 10:18:56,248 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 10:18:56,248 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2024-11-10 10:18:56,248 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:18:56,249 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:18:56,249 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:18:56,250 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 2 more)] === [2024-11-10 10:18:56,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:18:56,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1125003549, now seen corresponding path program 1 times [2024-11-10 10:18:56,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:18:56,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995022473] [2024-11-10 10:18:56,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:18:56,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:18:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:18:56,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:18:56,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:18:56,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995022473] [2024-11-10 10:18:56,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995022473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:18:56,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:18:56,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:18:56,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971875525] [2024-11-10 10:18:56,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:18:56,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:18:56,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:18:56,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:18:56,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:18:56,841 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2024-11-10 10:18:56,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:18:56,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:18:56,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2024-11-10 10:18:56,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:18:59,550 INFO L124 PetriNetUnfolderBase]: 22345/30803 cut-off events. [2024-11-10 10:18:59,550 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-11-10 10:18:59,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61257 conditions, 30803 events. 22345/30803 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 1097. Compared 182193 event pairs, 2463 based on Foata normal form. 900/31689 useless extension candidates. Maximal degree in co-relation 61245. Up to 18721 conditions per place. [2024-11-10 10:18:59,813 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 66 selfloop transitions, 6 changer transitions 1/78 dead transitions. [2024-11-10 10:18:59,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 78 transitions, 323 flow [2024-11-10 10:18:59,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 10:18:59,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 10:18:59,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 115 transitions. [2024-11-10 10:18:59,827 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2024-11-10 10:18:59,829 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 88 flow. Second operand 4 states and 115 transitions. [2024-11-10 10:18:59,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 78 transitions, 323 flow [2024-11-10 10:18:59,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 78 transitions, 316 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 10:18:59,844 INFO L231 Difference]: Finished difference. Result has 52 places, 42 transitions, 126 flow [2024-11-10 10:18:59,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=126, PETRI_PLACES=52, PETRI_TRANSITIONS=42} [2024-11-10 10:18:59,855 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 1 predicate places. [2024-11-10 10:18:59,855 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 42 transitions, 126 flow [2024-11-10 10:18:59,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:18:59,856 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:18:59,856 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] [2024-11-10 10:18:59,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:18:59,856 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 2 more)] === [2024-11-10 10:18:59,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:18:59,857 INFO L85 PathProgramCache]: Analyzing trace with hash 590109587, now seen corresponding path program 1 times [2024-11-10 10:18:59,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:18:59,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792630573] [2024-11-10 10:18:59,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:18:59,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:18:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:19:00,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:19:00,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:19:00,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792630573] [2024-11-10 10:19:00,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792630573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:19:00,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:19:00,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:19:00,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307620570] [2024-11-10 10:19:00,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:19:00,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:19:00,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:19:00,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:19:00,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:19:00,091 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2024-11-10 10:19:00,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:19:00,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:19:00,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2024-11-10 10:19:00,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:19:01,750 INFO L124 PetriNetUnfolderBase]: 15049/21011 cut-off events. [2024-11-10 10:19:01,751 INFO L125 PetriNetUnfolderBase]: For 4280/4280 co-relation queries the response was YES. [2024-11-10 10:19:01,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48021 conditions, 21011 events. 15049/21011 cut-off events. For 4280/4280 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 118812 event pairs, 1337 based on Foata normal form. 756/21753 useless extension candidates. Maximal degree in co-relation 48009. Up to 9649 conditions per place. [2024-11-10 10:19:01,916 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 85 selfloop transitions, 10 changer transitions 1/101 dead transitions. [2024-11-10 10:19:01,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 101 transitions, 465 flow [2024-11-10 10:19:01,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:19:01,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:19:01,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 148 transitions. [2024-11-10 10:19:01,919 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6577777777777778 [2024-11-10 10:19:01,920 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 126 flow. Second operand 5 states and 148 transitions. [2024-11-10 10:19:01,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 101 transitions, 465 flow [2024-11-10 10:19:01,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 101 transitions, 454 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 10:19:01,933 INFO L231 Difference]: Finished difference. Result has 56 places, 46 transitions, 178 flow [2024-11-10 10:19:01,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=178, PETRI_PLACES=56, PETRI_TRANSITIONS=46} [2024-11-10 10:19:01,935 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 5 predicate places. [2024-11-10 10:19:01,935 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 46 transitions, 178 flow [2024-11-10 10:19:01,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:19:01,935 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:19:01,936 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:19:01,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:19:01,936 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 2 more)] === [2024-11-10 10:19:01,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:19:01,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1674396995, now seen corresponding path program 1 times [2024-11-10 10:19:01,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:19:01,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100004536] [2024-11-10 10:19:01,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:19:01,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:19:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:19:02,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:19:02,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:19:02,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100004536] [2024-11-10 10:19:02,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100004536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:19:02,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:19:02,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:19:02,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803100081] [2024-11-10 10:19:02,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:19:02,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:19:02,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:19:02,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:19:02,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:19:02,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2024-11-10 10:19:02,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 46 transitions, 178 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:19:02,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:19:02,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2024-11-10 10:19:02,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:19:03,279 INFO L124 PetriNetUnfolderBase]: 8909/12491 cut-off events. [2024-11-10 10:19:03,280 INFO L125 PetriNetUnfolderBase]: For 7894/7894 co-relation queries the response was YES. [2024-11-10 10:19:03,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31455 conditions, 12491 events. 8909/12491 cut-off events. For 7894/7894 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 64838 event pairs, 1091 based on Foata normal form. 420/12897 useless extension candidates. Maximal degree in co-relation 31441. Up to 3644 conditions per place. [2024-11-10 10:19:03,382 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 102 selfloop transitions, 14 changer transitions 1/122 dead transitions. [2024-11-10 10:19:03,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 122 transitions, 612 flow [2024-11-10 10:19:03,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:19:03,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 10:19:03,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 179 transitions. [2024-11-10 10:19:03,384 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.662962962962963 [2024-11-10 10:19:03,385 INFO L175 Difference]: Start difference. First operand has 56 places, 46 transitions, 178 flow. Second operand 6 states and 179 transitions. [2024-11-10 10:19:03,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 122 transitions, 612 flow [2024-11-10 10:19:03,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 122 transitions, 582 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 10:19:03,479 INFO L231 Difference]: Finished difference. Result has 59 places, 50 transitions, 228 flow [2024-11-10 10:19:03,479 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=228, PETRI_PLACES=59, PETRI_TRANSITIONS=50} [2024-11-10 10:19:03,480 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 8 predicate places. [2024-11-10 10:19:03,481 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 50 transitions, 228 flow [2024-11-10 10:19:03,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:19:03,481 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:19:03,481 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:19:03,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 10:19:03,482 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 2 more)] === [2024-11-10 10:19:03,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:19:03,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1715290725, now seen corresponding path program 1 times [2024-11-10 10:19:03,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:19:03,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859003479] [2024-11-10 10:19:03,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:19:03,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:19:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:19:03,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:19:03,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:19:03,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859003479] [2024-11-10 10:19:03,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859003479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:19:03,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:19:03,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 10:19:03,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254705448] [2024-11-10 10:19:03,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:19:03,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 10:19:03,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:19:03,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 10:19:03,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 10:19:03,675 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2024-11-10 10:19:03,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 50 transitions, 228 flow. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:19:03,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:19:03,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2024-11-10 10:19:03,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:19:04,497 INFO L124 PetriNetUnfolderBase]: 6465/8971 cut-off events. [2024-11-10 10:19:04,498 INFO L125 PetriNetUnfolderBase]: For 7858/7858 co-relation queries the response was YES. [2024-11-10 10:19:04,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23720 conditions, 8971 events. 6465/8971 cut-off events. For 7858/7858 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 44731 event pairs, 977 based on Foata normal form. 128/9085 useless extension candidates. Maximal degree in co-relation 23705. Up to 3076 conditions per place. [2024-11-10 10:19:04,586 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 89 selfloop transitions, 18 changer transitions 1/113 dead transitions. [2024-11-10 10:19:04,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 113 transitions, 586 flow [2024-11-10 10:19:04,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 10:19:04,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 10:19:04,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 180 transitions. [2024-11-10 10:19:04,590 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-11-10 10:19:04,591 INFO L175 Difference]: Start difference. First operand has 59 places, 50 transitions, 228 flow. Second operand 7 states and 180 transitions. [2024-11-10 10:19:04,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 113 transitions, 586 flow [2024-11-10 10:19:04,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 113 transitions, 540 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-10 10:19:04,688 INFO L231 Difference]: Finished difference. Result has 62 places, 50 transitions, 238 flow [2024-11-10 10:19:04,689 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=238, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2024-11-10 10:19:04,690 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 11 predicate places. [2024-11-10 10:19:04,690 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 238 flow [2024-11-10 10:19:04,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:19:04,690 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:19:04,690 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:19:04,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 10:19:04,691 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 2 more)] === [2024-11-10 10:19:04,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:19:04,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1909835094, now seen corresponding path program 1 times [2024-11-10 10:19:04,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:19:04,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773019812] [2024-11-10 10:19:04,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:19:04,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:19:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:19:04,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:19:04,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:19:04,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773019812] [2024-11-10 10:19:04,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773019812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:19:04,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:19:04,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 10:19:04,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135232653] [2024-11-10 10:19:04,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:19:04,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:19:04,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:19:04,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:19:04,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:19:04,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2024-11-10 10:19:04,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 238 flow. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:19:04,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:19:04,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2024-11-10 10:19:04,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:19:05,827 INFO L124 PetriNetUnfolderBase]: 9353/12978 cut-off events. [2024-11-10 10:19:05,827 INFO L125 PetriNetUnfolderBase]: For 11286/11286 co-relation queries the response was YES. [2024-11-10 10:19:05,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34608 conditions, 12978 events. 9353/12978 cut-off events. For 11286/11286 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 68927 event pairs, 1429 based on Foata normal form. 16/12987 useless extension candidates. Maximal degree in co-relation 34592. Up to 6896 conditions per place. [2024-11-10 10:19:05,935 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 67 selfloop transitions, 1 changer transitions 47/120 dead transitions. [2024-11-10 10:19:05,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 120 transitions, 796 flow [2024-11-10 10:19:05,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:19:05,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 10:19:05,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 146 transitions. [2024-11-10 10:19:05,937 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5407407407407407 [2024-11-10 10:19:05,937 INFO L175 Difference]: Start difference. First operand has 62 places, 50 transitions, 238 flow. Second operand 6 states and 146 transitions. [2024-11-10 10:19:05,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 120 transitions, 796 flow [2024-11-10 10:19:06,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 120 transitions, 571 flow, removed 34 selfloop flow, removed 10 redundant places. [2024-11-10 10:19:06,119 INFO L231 Difference]: Finished difference. Result has 61 places, 50 transitions, 153 flow [2024-11-10 10:19:06,119 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=153, PETRI_PLACES=61, PETRI_TRANSITIONS=50} [2024-11-10 10:19:06,120 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 10 predicate places. [2024-11-10 10:19:06,120 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 153 flow [2024-11-10 10:19:06,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:19:06,121 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:19:06,121 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:19:06,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 10:19:06,122 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 2 more)] === [2024-11-10 10:19:06,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:19:06,124 INFO L85 PathProgramCache]: Analyzing trace with hash 2105415536, now seen corresponding path program 2 times [2024-11-10 10:19:06,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:19:06,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539358190] [2024-11-10 10:19:06,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:19:06,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:19:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:19:06,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:19:06,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:19:06,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539358190] [2024-11-10 10:19:06,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539358190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:19:06,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:19:06,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 10:19:06,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582604565] [2024-11-10 10:19:06,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:19:06,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 10:19:06,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:19:06,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 10:19:06,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 10:19:06,353 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2024-11-10 10:19:06,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 153 flow. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:19:06,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:19:06,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2024-11-10 10:19:06,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:19:07,374 INFO L124 PetriNetUnfolderBase]: 11713/16506 cut-off events. [2024-11-10 10:19:07,374 INFO L125 PetriNetUnfolderBase]: For 3217/3217 co-relation queries the response was YES. [2024-11-10 10:19:07,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37726 conditions, 16506 events. 11713/16506 cut-off events. For 3217/3217 co-relation queries the response was YES. Maximal size of possible extension queue 629. Compared 90992 event pairs, 1249 based on Foata normal form. 32/16531 useless extension candidates. Maximal degree in co-relation 37712. Up to 6464 conditions per place. [2024-11-10 10:19:07,451 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 77 selfloop transitions, 5 changer transitions 72/159 dead transitions. [2024-11-10 10:19:07,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 159 transitions, 779 flow [2024-11-10 10:19:07,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 10:19:07,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 10:19:07,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 204 transitions. [2024-11-10 10:19:07,454 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5037037037037037 [2024-11-10 10:19:07,454 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 153 flow. Second operand 9 states and 204 transitions. [2024-11-10 10:19:07,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 159 transitions, 779 flow [2024-11-10 10:19:07,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 159 transitions, 764 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-11-10 10:19:07,461 INFO L231 Difference]: Finished difference. Result has 68 places, 50 transitions, 174 flow [2024-11-10 10:19:07,461 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=174, PETRI_PLACES=68, PETRI_TRANSITIONS=50} [2024-11-10 10:19:07,462 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 17 predicate places. [2024-11-10 10:19:07,462 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 50 transitions, 174 flow [2024-11-10 10:19:07,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:19:07,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:19:07,463 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:19:07,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 10:19:07,463 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 2 more)] === [2024-11-10 10:19:07,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:19:07,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1193859508, now seen corresponding path program 3 times [2024-11-10 10:19:07,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:19:07,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577395884] [2024-11-10 10:19:07,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:19:07,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:19:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:19:07,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:19:07,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:19:07,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577395884] [2024-11-10 10:19:07,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577395884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:19:07,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:19:07,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:19:07,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779629989] [2024-11-10 10:19:07,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:19:07,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:19:07,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:19:07,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:19:07,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:19:07,635 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2024-11-10 10:19:07,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 50 transitions, 174 flow. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:19:07,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:19:07,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2024-11-10 10:19:07,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:19:08,009 INFO L124 PetriNetUnfolderBase]: 3659/5350 cut-off events. [2024-11-10 10:19:08,009 INFO L125 PetriNetUnfolderBase]: For 1619/1619 co-relation queries the response was YES. [2024-11-10 10:19:08,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13200 conditions, 5350 events. 3659/5350 cut-off events. For 1619/1619 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 25167 event pairs, 967 based on Foata normal form. 16/5358 useless extension candidates. Maximal degree in co-relation 13190. Up to 3984 conditions per place. [2024-11-10 10:19:08,038 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 0 selfloop transitions, 0 changer transitions 84/84 dead transitions. [2024-11-10 10:19:08,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 84 transitions, 428 flow [2024-11-10 10:19:08,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:19:08,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 10:19:08,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 121 transitions. [2024-11-10 10:19:08,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44814814814814813 [2024-11-10 10:19:08,040 INFO L175 Difference]: Start difference. First operand has 68 places, 50 transitions, 174 flow. Second operand 6 states and 121 transitions. [2024-11-10 10:19:08,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 84 transitions, 428 flow [2024-11-10 10:19:08,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 84 transitions, 412 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-10 10:19:08,043 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2024-11-10 10:19:08,043 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2024-11-10 10:19:08,044 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 11 predicate places. [2024-11-10 10:19:08,044 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2024-11-10 10:19:08,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:19:08,047 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-11-10 10:19:08,048 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2024-11-10 10:19:08,048 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-10 10:19:08,048 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-10 10:19:08,049 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-10 10:19:08,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 10:19:08,049 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2024-11-10 10:19:08,053 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 10:19:08,053 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 10:19:08,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:19:08 BasicIcfg [2024-11-10 10:19:08,059 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 10:19:08,060 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 10:19:08,060 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 10:19:08,060 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 10:19:08,061 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:18:55" (3/4) ... [2024-11-10 10:19:08,067 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 10:19:08,071 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-10 10:19:08,073 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-10 10:19:08,073 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-10 10:19:08,073 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P3 [2024-11-10 10:19:08,079 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-11-10 10:19:08,079 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-10 10:19:08,079 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-10 10:19:08,080 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 10:19:08,171 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 10:19:08,174 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 10:19:08,174 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 10:19:08,176 INFO L158 Benchmark]: Toolchain (without parser) took 13612.27ms. Allocated memory was 163.6MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 105.5MB in the beginning and 477.1MB in the end (delta: -371.5MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-10 10:19:08,176 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 163.6MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 10:19:08,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.23ms. Allocated memory is still 163.6MB. Free memory was 105.1MB in the beginning and 82.3MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-10 10:19:08,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.02ms. Allocated memory is still 163.6MB. Free memory was 82.3MB in the beginning and 79.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 10:19:08,179 INFO L158 Benchmark]: Boogie Preprocessor took 73.59ms. Allocated memory is still 163.6MB. Free memory was 79.9MB in the beginning and 77.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 10:19:08,179 INFO L158 Benchmark]: IcfgBuilder took 689.24ms. Allocated memory is still 163.6MB. Free memory was 77.8MB in the beginning and 123.5MB in the end (delta: -45.6MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2024-11-10 10:19:08,179 INFO L158 Benchmark]: TraceAbstraction took 12065.44ms. Allocated memory was 163.6MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 122.2MB in the beginning and 481.3MB in the end (delta: -359.1MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-10 10:19:08,179 INFO L158 Benchmark]: Witness Printer took 114.59ms. Allocated memory is still 1.8GB. Free memory was 481.3MB in the beginning and 477.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 10:19:08,181 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 163.6MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.23ms. Allocated memory is still 163.6MB. Free memory was 105.1MB in the beginning and 82.3MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.02ms. Allocated memory is still 163.6MB. Free memory was 82.3MB in the beginning and 79.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.59ms. Allocated memory is still 163.6MB. Free memory was 79.9MB in the beginning and 77.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 689.24ms. Allocated memory is still 163.6MB. Free memory was 77.8MB in the beginning and 123.5MB in the end (delta: -45.6MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * TraceAbstraction took 12065.44ms. Allocated memory was 163.6MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 122.2MB in the beginning and 481.3MB in the end (delta: -359.1MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 114.59ms. Allocated memory is still 1.8GB. Free memory was 481.3MB in the beginning and 477.1MB 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 9 procedures, 75 locations, 5 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: 11.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 703 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 697 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1155 IncrementalHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 0 mSDtfsCounter, 1155 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=238occurred in iteration=4, InterpolantAutomatonStates: 43, 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, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 716 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2024-11-10 10:19:08,212 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