./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/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 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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-dev-84cfde4 [2024-10-11 14:19:00,182 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 14:19:00,283 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 14:19:00,296 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 14:19:00,301 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 14:19:00,338 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 14:19:00,344 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 14:19:00,344 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 14:19:00,348 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 14:19:00,349 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 14:19:00,349 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 14:19:00,349 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 14:19:00,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 14:19:00,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 14:19:00,350 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 14:19:00,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 14:19:00,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 14:19:00,351 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 14:19:00,357 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 14:19:00,357 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 14:19:00,358 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 14:19:00,360 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 14:19:00,361 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 14:19:00,361 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 14:19:00,362 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 14:19:00,362 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 14:19:00,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 14:19:00,366 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 14:19:00,366 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 14:19:00,367 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 14:19:00,367 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 14:19:00,367 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 14:19:00,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:19:00,367 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 14:19:00,367 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 14:19:00,368 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 14:19:00,368 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 14:19:00,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 14:19:00,369 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 14:19:00,369 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 14:19:00,370 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 14:19:00,370 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 14:19:00,370 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b [2024-10-11 14:19:00,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 14:19:00,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 14:19:00,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 14:19:00,766 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 14:19:00,766 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 14:19:00,767 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-11 14:19:02,337 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 14:19:02,570 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 14:19:02,570 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-11 14:19:02,588 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0ea6c231e/6b056218057c4bb9b4eaf75cfa671fa3/FLAG89d303021 [2024-10-11 14:19:02,599 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0ea6c231e/6b056218057c4bb9b4eaf75cfa671fa3 [2024-10-11 14:19:02,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 14:19:02,602 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 14:19:02,603 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 14:19:02,603 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 14:19:02,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 14:19:02,609 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:19:02" (1/1) ... [2024-10-11 14:19:02,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10859a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:19:02, skipping insertion in model container [2024-10-11 14:19:02,610 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:19:02" (1/1) ... [2024-10-11 14:19:02,640 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 14:19:02,775 WARN L248 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] [2024-10-11 14:19:02,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:19:02,968 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 14:19:02,983 WARN L248 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] [2024-10-11 14:19:03,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:19:03,051 INFO L204 MainTranslator]: Completed translation [2024-10-11 14:19:03,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:19:03 WrapperNode [2024-10-11 14:19:03,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 14:19:03,056 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 14:19:03,056 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 14:19:03,056 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 14:19:03,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:19:03" (1/1) ... [2024-10-11 14:19:03,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:19:03" (1/1) ... [2024-10-11 14:19:03,091 INFO L138 Inliner]: procedures = 176, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2024-10-11 14:19:03,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 14:19:03,092 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 14:19:03,092 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 14:19:03,092 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 14:19:03,100 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:19:03" (1/1) ... [2024-10-11 14:19:03,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:19:03" (1/1) ... [2024-10-11 14:19:03,102 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:19:03" (1/1) ... [2024-10-11 14:19:03,114 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]. [2024-10-11 14:19:03,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:19:03" (1/1) ... [2024-10-11 14:19:03,115 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:19:03" (1/1) ... [2024-10-11 14:19:03,119 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:19:03" (1/1) ... [2024-10-11 14:19:03,120 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:19:03" (1/1) ... [2024-10-11 14:19:03,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:19:03" (1/1) ... [2024-10-11 14:19:03,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:19:03" (1/1) ... [2024-10-11 14:19:03,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 14:19:03,124 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 14:19:03,124 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 14:19:03,124 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 14:19:03,125 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:19:03" (1/1) ... [2024-10-11 14:19:03,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:19:03,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:19:03,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 14:19:03,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 14:19:03,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 14:19:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 14:19:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 14:19:03,193 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 14:19:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 14:19:03,193 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 14:19:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 14:19:03,193 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 14:19:03,194 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-11 14:19:03,194 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-11 14:19:03,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 14:19:03,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 14:19:03,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 14:19:03,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 14:19:03,195 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 14:19:03,293 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 14:19:03,294 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 14:19:03,427 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 14:19:03,427 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 14:19:03,505 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 14:19:03,505 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 14:19:03,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:19:03 BoogieIcfgContainer [2024-10-11 14:19:03,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 14:19:03,507 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 14:19:03,507 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 14:19:03,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 14:19:03,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:19:02" (1/3) ... [2024-10-11 14:19:03,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290af55f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:19:03, skipping insertion in model container [2024-10-11 14:19:03,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:19:03" (2/3) ... [2024-10-11 14:19:03,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290af55f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:19:03, skipping insertion in model container [2024-10-11 14:19:03,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:19:03" (3/3) ... [2024-10-11 14:19:03,512 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-11 14:19:03,529 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 14:19:03,529 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 14:19:03,530 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 14:19:03,575 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 14:19:03,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 45 transitions, 106 flow [2024-10-11 14:19:03,626 INFO L124 PetriNetUnfolderBase]: 1/41 cut-off events. [2024-10-11 14:19:03,626 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 14:19:03,629 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 5. Compared 78 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. [2024-10-11 14:19:03,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 45 transitions, 106 flow [2024-10-11 14:19:03,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 38 transitions, 88 flow [2024-10-11 14:19:03,645 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:19:03,654 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;@6e48382b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:19:03,658 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-11 14:19:03,676 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 14:19:03,676 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2024-10-11 14:19:03,676 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 14:19:03,676 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:19:03,677 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:19:03,677 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)] === [2024-10-11 14:19:03,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:19:03,689 INFO L85 PathProgramCache]: Analyzing trace with hash -755323734, now seen corresponding path program 1 times [2024-10-11 14:19:03,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:19:03,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216967126] [2024-10-11 14:19:03,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:19:03,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:19:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:19:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:19:04,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:19:04,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216967126] [2024-10-11 14:19:04,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216967126] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:19:04,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:19:04,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:19:04,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35174806] [2024-10-11 14:19:04,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:19:04,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:19:04,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:19:04,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:19:04,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:19:04,336 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 45 [2024-10-11 14:19:04,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 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) [2024-10-11 14:19:04,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:19:04,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 45 [2024-10-11 14:19:04,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:19:04,999 INFO L124 PetriNetUnfolderBase]: 2776/4646 cut-off events. [2024-10-11 14:19:04,999 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-10-11 14:19:05,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8769 conditions, 4646 events. 2776/4646 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 34401 event pairs, 1143 based on Foata normal form. 140/4728 useless extension candidates. Maximal degree in co-relation 8757. Up to 2191 conditions per place. [2024-10-11 14:19:05,030 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 34 selfloop transitions, 6 changer transitions 37/93 dead transitions. [2024-10-11 14:19:05,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 93 transitions, 361 flow [2024-10-11 14:19:05,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 14:19:05,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 14:19:05,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 219 transitions. [2024-10-11 14:19:05,042 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6952380952380952 [2024-10-11 14:19:05,043 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 88 flow. Second operand 7 states and 219 transitions. [2024-10-11 14:19:05,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 93 transitions, 361 flow [2024-10-11 14:19:05,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 93 transitions, 354 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 14:19:05,054 INFO L231 Difference]: Finished difference. Result has 58 places, 42 transitions, 144 flow [2024-10-11 14:19:05,056 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=7, PETRI_FLOW=144, PETRI_PLACES=58, PETRI_TRANSITIONS=42} [2024-10-11 14:19:05,061 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 7 predicate places. [2024-10-11 14:19:05,062 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 42 transitions, 144 flow [2024-10-11 14:19:05,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 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) [2024-10-11 14:19:05,062 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:19:05,063 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:19:05,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 14:19:05,063 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)] === [2024-10-11 14:19:05,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:19:05,064 INFO L85 PathProgramCache]: Analyzing trace with hash -299791735, now seen corresponding path program 1 times [2024-10-11 14:19:05,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:19:05,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295136277] [2024-10-11 14:19:05,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:19:05,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:19:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:19:05,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:19:05,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:19:05,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295136277] [2024-10-11 14:19:05,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295136277] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:19:05,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:19:05,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 14:19:05,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043071793] [2024-10-11 14:19:05,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:19:05,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 14:19:05,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:19:05,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 14:19:05,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 14:19:05,226 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 45 [2024-10-11 14:19:05,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 42 transitions, 144 flow. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 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) [2024-10-11 14:19:05,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:19:05,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 45 [2024-10-11 14:19:05,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:19:05,769 INFO L124 PetriNetUnfolderBase]: 2463/4297 cut-off events. [2024-10-11 14:19:05,769 INFO L125 PetriNetUnfolderBase]: For 3601/3601 co-relation queries the response was YES. [2024-10-11 14:19:05,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11518 conditions, 4297 events. 2463/4297 cut-off events. For 3601/3601 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 32852 event pairs, 385 based on Foata normal form. 120/4376 useless extension candidates. Maximal degree in co-relation 11503. Up to 1685 conditions per place. [2024-10-11 14:19:05,789 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 41 selfloop transitions, 7 changer transitions 48/112 dead transitions. [2024-10-11 14:19:05,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 112 transitions, 634 flow [2024-10-11 14:19:05,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 14:19:05,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 14:19:05,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 296 transitions. [2024-10-11 14:19:05,792 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6577777777777778 [2024-10-11 14:19:05,792 INFO L175 Difference]: Start difference. First operand has 58 places, 42 transitions, 144 flow. Second operand 10 states and 296 transitions. [2024-10-11 14:19:05,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 112 transitions, 634 flow [2024-10-11 14:19:05,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 112 transitions, 604 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-10-11 14:19:05,806 INFO L231 Difference]: Finished difference. Result has 68 places, 44 transitions, 189 flow [2024-10-11 14:19:05,806 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=189, PETRI_PLACES=68, PETRI_TRANSITIONS=44} [2024-10-11 14:19:05,807 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 17 predicate places. [2024-10-11 14:19:05,807 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 44 transitions, 189 flow [2024-10-11 14:19:05,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 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) [2024-10-11 14:19:05,807 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:19:05,807 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:19:05,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 14:19:05,808 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)] === [2024-10-11 14:19:05,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:19:05,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1081074827, now seen corresponding path program 1 times [2024-10-11 14:19:05,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:19:05,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371203581] [2024-10-11 14:19:05,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:19:05,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:19:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:19:05,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:19:05,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:19:05,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371203581] [2024-10-11 14:19:05,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371203581] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:19:05,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:19:05,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 14:19:05,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758466809] [2024-10-11 14:19:05,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:19:05,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 14:19:05,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:19:05,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 14:19:05,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 14:19:05,976 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-10-11 14:19:05,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 44 transitions, 189 flow. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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) [2024-10-11 14:19:05,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:19:05,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-10-11 14:19:05,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:19:06,866 INFO L124 PetriNetUnfolderBase]: 4414/7558 cut-off events. [2024-10-11 14:19:06,866 INFO L125 PetriNetUnfolderBase]: For 14361/14381 co-relation queries the response was YES. [2024-10-11 14:19:06,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22343 conditions, 7558 events. 4414/7558 cut-off events. For 14361/14381 co-relation queries the response was YES. Maximal size of possible extension queue 481. Compared 56359 event pairs, 389 based on Foata normal form. 213/7733 useless extension candidates. Maximal degree in co-relation 22321. Up to 2253 conditions per place. [2024-10-11 14:19:06,913 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 63 selfloop transitions, 23 changer transitions 82/183 dead transitions. [2024-10-11 14:19:06,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 183 transitions, 1267 flow [2024-10-11 14:19:06,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 14:19:06,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 14:19:06,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 397 transitions. [2024-10-11 14:19:06,915 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6786324786324787 [2024-10-11 14:19:06,915 INFO L175 Difference]: Start difference. First operand has 68 places, 44 transitions, 189 flow. Second operand 13 states and 397 transitions. [2024-10-11 14:19:06,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 183 transitions, 1267 flow [2024-10-11 14:19:06,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 183 transitions, 1155 flow, removed 36 selfloop flow, removed 6 redundant places. [2024-10-11 14:19:06,961 INFO L231 Difference]: Finished difference. Result has 80 places, 60 transitions, 445 flow [2024-10-11 14:19:06,962 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=445, PETRI_PLACES=80, PETRI_TRANSITIONS=60} [2024-10-11 14:19:06,962 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 29 predicate places. [2024-10-11 14:19:06,963 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 60 transitions, 445 flow [2024-10-11 14:19:06,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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) [2024-10-11 14:19:06,963 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:19:06,963 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] [2024-10-11 14:19:06,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 14:19:06,963 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)] === [2024-10-11 14:19:06,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:19:06,964 INFO L85 PathProgramCache]: Analyzing trace with hash -459563146, now seen corresponding path program 1 times [2024-10-11 14:19:06,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:19:06,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217488819] [2024-10-11 14:19:06,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:19:06,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:19:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:19:07,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:19:07,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:19:07,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217488819] [2024-10-11 14:19:07,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217488819] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:19:07,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:19:07,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 14:19:07,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006041508] [2024-10-11 14:19:07,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:19:07,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 14:19:07,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:19:07,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 14:19:07,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 14:19:07,187 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 45 [2024-10-11 14:19:07,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 60 transitions, 445 flow. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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) [2024-10-11 14:19:07,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:19:07,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 45 [2024-10-11 14:19:07,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:19:07,805 INFO L124 PetriNetUnfolderBase]: 3434/6291 cut-off events. [2024-10-11 14:19:07,805 INFO L125 PetriNetUnfolderBase]: For 38376/38515 co-relation queries the response was YES. [2024-10-11 14:19:07,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24922 conditions, 6291 events. 3434/6291 cut-off events. For 38376/38515 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 49777 event pairs, 364 based on Foata normal form. 246/6413 useless extension candidates. Maximal degree in co-relation 24892. Up to 2462 conditions per place. [2024-10-11 14:19:07,943 INFO L140 encePairwiseOnDemand]: 37/45 looper letters, 63 selfloop transitions, 23 changer transitions 39/142 dead transitions. [2024-10-11 14:19:07,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 142 transitions, 1427 flow [2024-10-11 14:19:07,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 14:19:07,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 14:19:07,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 295 transitions. [2024-10-11 14:19:07,945 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6555555555555556 [2024-10-11 14:19:07,945 INFO L175 Difference]: Start difference. First operand has 80 places, 60 transitions, 445 flow. Second operand 10 states and 295 transitions. [2024-10-11 14:19:07,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 142 transitions, 1427 flow [2024-10-11 14:19:07,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 142 transitions, 1203 flow, removed 112 selfloop flow, removed 8 redundant places. [2024-10-11 14:19:07,999 INFO L231 Difference]: Finished difference. Result has 80 places, 69 transitions, 554 flow [2024-10-11 14:19:07,999 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=554, PETRI_PLACES=80, PETRI_TRANSITIONS=69} [2024-10-11 14:19:08,000 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 29 predicate places. [2024-10-11 14:19:08,000 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 69 transitions, 554 flow [2024-10-11 14:19:08,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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) [2024-10-11 14:19:08,000 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:19:08,000 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] [2024-10-11 14:19:08,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 14:19:08,001 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)] === [2024-10-11 14:19:08,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:19:08,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1974716180, now seen corresponding path program 1 times [2024-10-11 14:19:08,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:19:08,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309537532] [2024-10-11 14:19:08,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:19:08,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:19:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:19:08,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:19:08,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:19:08,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309537532] [2024-10-11 14:19:08,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309537532] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:19:08,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:19:08,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 14:19:08,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516032946] [2024-10-11 14:19:08,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:19:08,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 14:19:08,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:19:08,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 14:19:08,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 14:19:08,149 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-10-11 14:19:08,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 69 transitions, 554 flow. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:19:08,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:19:08,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-10-11 14:19:08,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:19:08,915 INFO L124 PetriNetUnfolderBase]: 4477/7886 cut-off events. [2024-10-11 14:19:08,916 INFO L125 PetriNetUnfolderBase]: For 26690/26730 co-relation queries the response was YES. [2024-10-11 14:19:08,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28332 conditions, 7886 events. 4477/7886 cut-off events. For 26690/26730 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 62096 event pairs, 565 based on Foata normal form. 142/7952 useless extension candidates. Maximal degree in co-relation 28301. Up to 2136 conditions per place. [2024-10-11 14:19:08,962 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 55 selfloop transitions, 10 changer transitions 87/167 dead transitions. [2024-10-11 14:19:08,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 167 transitions, 1652 flow [2024-10-11 14:19:08,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 14:19:08,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 14:19:08,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 271 transitions. [2024-10-11 14:19:08,964 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6691358024691358 [2024-10-11 14:19:08,964 INFO L175 Difference]: Start difference. First operand has 80 places, 69 transitions, 554 flow. Second operand 9 states and 271 transitions. [2024-10-11 14:19:08,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 167 transitions, 1652 flow [2024-10-11 14:19:09,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 167 transitions, 1587 flow, removed 17 selfloop flow, removed 5 redundant places. [2024-10-11 14:19:09,002 INFO L231 Difference]: Finished difference. Result has 87 places, 49 transitions, 330 flow [2024-10-11 14:19:09,003 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=330, PETRI_PLACES=87, PETRI_TRANSITIONS=49} [2024-10-11 14:19:09,003 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 36 predicate places. [2024-10-11 14:19:09,003 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 49 transitions, 330 flow [2024-10-11 14:19:09,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 14:19:09,004 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:19:09,004 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] [2024-10-11 14:19:09,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 14:19:09,004 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)] === [2024-10-11 14:19:09,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:19:09,004 INFO L85 PathProgramCache]: Analyzing trace with hash 2083030783, now seen corresponding path program 1 times [2024-10-11 14:19:09,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:19:09,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331975762] [2024-10-11 14:19:09,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:19:09,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:19:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:19:09,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:19:09,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:19:09,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331975762] [2024-10-11 14:19:09,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331975762] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:19:09,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:19:09,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:19:09,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283591993] [2024-10-11 14:19:09,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:19:09,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:19:09,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:19:09,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:19:09,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:19:09,099 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 45 [2024-10-11 14:19:09,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 49 transitions, 330 flow. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-10-11 14:19:09,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:19:09,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 45 [2024-10-11 14:19:09,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:19:09,371 INFO L124 PetriNetUnfolderBase]: 1355/2638 cut-off events. [2024-10-11 14:19:09,371 INFO L125 PetriNetUnfolderBase]: For 8797/8932 co-relation queries the response was YES. [2024-10-11 14:19:09,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8992 conditions, 2638 events. 1355/2638 cut-off events. For 8797/8932 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 19031 event pairs, 615 based on Foata normal form. 78/2526 useless extension candidates. Maximal degree in co-relation 8957. Up to 1337 conditions per place. [2024-10-11 14:19:09,391 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 27 selfloop transitions, 5 changer transitions 21/81 dead transitions. [2024-10-11 14:19:09,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 81 transitions, 582 flow [2024-10-11 14:19:09,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 14:19:09,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 14:19:09,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 218 transitions. [2024-10-11 14:19:09,393 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.692063492063492 [2024-10-11 14:19:09,393 INFO L175 Difference]: Start difference. First operand has 87 places, 49 transitions, 330 flow. Second operand 7 states and 218 transitions. [2024-10-11 14:19:09,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 81 transitions, 582 flow [2024-10-11 14:19:09,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 81 transitions, 422 flow, removed 39 selfloop flow, removed 19 redundant places. [2024-10-11 14:19:09,406 INFO L231 Difference]: Finished difference. Result has 71 places, 49 transitions, 239 flow [2024-10-11 14:19:09,406 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=239, PETRI_PLACES=71, PETRI_TRANSITIONS=49} [2024-10-11 14:19:09,406 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 20 predicate places. [2024-10-11 14:19:09,407 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 49 transitions, 239 flow [2024-10-11 14:19:09,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-10-11 14:19:09,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:19:09,407 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:19:09,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 14:19:09,407 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)] === [2024-10-11 14:19:09,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:19:09,408 INFO L85 PathProgramCache]: Analyzing trace with hash 653172190, now seen corresponding path program 1 times [2024-10-11 14:19:09,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:19:09,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328974828] [2024-10-11 14:19:09,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:19:09,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:19:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:19:09,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:19:09,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:19:09,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328974828] [2024-10-11 14:19:09,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328974828] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:19:09,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:19:09,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 14:19:09,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830683835] [2024-10-11 14:19:09,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:19:09,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 14:19:09,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:19:09,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 14:19:09,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 14:19:09,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 45 [2024-10-11 14:19:09,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 49 transitions, 239 flow. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 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) [2024-10-11 14:19:09,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:19:09,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 45 [2024-10-11 14:19:09,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:19:09,809 INFO L124 PetriNetUnfolderBase]: 2050/3757 cut-off events. [2024-10-11 14:19:09,809 INFO L125 PetriNetUnfolderBase]: For 4644/4674 co-relation queries the response was YES. [2024-10-11 14:19:09,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10607 conditions, 3757 events. 2050/3757 cut-off events. For 4644/4674 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 27846 event pairs, 538 based on Foata normal form. 60/3728 useless extension candidates. Maximal degree in co-relation 10583. Up to 1342 conditions per place. [2024-10-11 14:19:09,833 INFO L140 encePairwiseOnDemand]: 37/45 looper letters, 42 selfloop transitions, 10 changer transitions 25/94 dead transitions. [2024-10-11 14:19:09,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 94 transitions, 569 flow [2024-10-11 14:19:09,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 14:19:09,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 14:19:09,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 234 transitions. [2024-10-11 14:19:09,835 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-10-11 14:19:09,835 INFO L175 Difference]: Start difference. First operand has 71 places, 49 transitions, 239 flow. Second operand 8 states and 234 transitions. [2024-10-11 14:19:09,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 94 transitions, 569 flow [2024-10-11 14:19:09,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 94 transitions, 535 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-10-11 14:19:09,846 INFO L231 Difference]: Finished difference. Result has 73 places, 49 transitions, 255 flow [2024-10-11 14:19:09,846 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=255, PETRI_PLACES=73, PETRI_TRANSITIONS=49} [2024-10-11 14:19:09,846 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 22 predicate places. [2024-10-11 14:19:09,847 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 49 transitions, 255 flow [2024-10-11 14:19:09,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 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) [2024-10-11 14:19:09,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:19:09,847 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] [2024-10-11 14:19:09,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 14:19:09,847 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 2 more)] === [2024-10-11 14:19:09,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:19:09,848 INFO L85 PathProgramCache]: Analyzing trace with hash -661292864, now seen corresponding path program 1 times [2024-10-11 14:19:09,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:19:09,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404251941] [2024-10-11 14:19:09,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:19:09,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:19:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:19:09,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:19:09,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:19:09,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404251941] [2024-10-11 14:19:09,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404251941] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:19:09,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:19:09,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 14:19:09,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272535934] [2024-10-11 14:19:09,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:19:09,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 14:19:09,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:19:09,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 14:19:09,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 14:19:09,956 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 45 [2024-10-11 14:19:09,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 49 transitions, 255 flow. Second operand has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 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) [2024-10-11 14:19:09,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:19:09,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 45 [2024-10-11 14:19:09,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:19:10,317 INFO L124 PetriNetUnfolderBase]: 2185/4193 cut-off events. [2024-10-11 14:19:10,317 INFO L125 PetriNetUnfolderBase]: For 7177/7419 co-relation queries the response was YES. [2024-10-11 14:19:10,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11364 conditions, 4193 events. 2185/4193 cut-off events. For 7177/7419 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 33291 event pairs, 730 based on Foata normal form. 96/4100 useless extension candidates. Maximal degree in co-relation 11339. Up to 1446 conditions per place. [2024-10-11 14:19:10,334 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 31 selfloop transitions, 7 changer transitions 19/78 dead transitions. [2024-10-11 14:19:10,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 78 transitions, 489 flow [2024-10-11 14:19:10,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 14:19:10,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 14:19:10,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 184 transitions. [2024-10-11 14:19:10,335 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6814814814814815 [2024-10-11 14:19:10,335 INFO L175 Difference]: Start difference. First operand has 73 places, 49 transitions, 255 flow. Second operand 6 states and 184 transitions. [2024-10-11 14:19:10,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 78 transitions, 489 flow [2024-10-11 14:19:10,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 78 transitions, 451 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-10-11 14:19:10,344 INFO L231 Difference]: Finished difference. Result has 71 places, 47 transitions, 241 flow [2024-10-11 14:19:10,344 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=71, PETRI_TRANSITIONS=47} [2024-10-11 14:19:10,344 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 20 predicate places. [2024-10-11 14:19:10,345 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 47 transitions, 241 flow [2024-10-11 14:19:10,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 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) [2024-10-11 14:19:10,345 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:19:10,345 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] [2024-10-11 14:19:10,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 14:19:10,345 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 2 more)] === [2024-10-11 14:19:10,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:19:10,346 INFO L85 PathProgramCache]: Analyzing trace with hash 453713548, now seen corresponding path program 2 times [2024-10-11 14:19:10,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:19:10,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324871845] [2024-10-11 14:19:10,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:19:10,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:19:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:19:10,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:19:10,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:19:10,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324871845] [2024-10-11 14:19:10,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324871845] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:19:10,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:19:10,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:19:10,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346933617] [2024-10-11 14:19:10,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:19:10,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:19:10,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:19:10,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:19:10,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:19:10,470 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-10-11 14:19:10,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 47 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2024-10-11 14:19:10,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:19:10,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-10-11 14:19:10,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:19:10,840 INFO L124 PetriNetUnfolderBase]: 4407/7444 cut-off events. [2024-10-11 14:19:10,840 INFO L125 PetriNetUnfolderBase]: For 3890/4222 co-relation queries the response was YES. [2024-10-11 14:19:10,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16153 conditions, 7444 events. 4407/7444 cut-off events. For 3890/4222 co-relation queries the response was YES. Maximal size of possible extension queue 524. Compared 56295 event pairs, 1368 based on Foata normal form. 331/7436 useless extension candidates. Maximal degree in co-relation 16129. Up to 3405 conditions per place. [2024-10-11 14:19:10,884 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 32 selfloop transitions, 6 changer transitions 0/65 dead transitions. [2024-10-11 14:19:10,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 65 transitions, 357 flow [2024-10-11 14:19:10,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 14:19:10,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 14:19:10,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2024-10-11 14:19:10,885 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-10-11 14:19:10,885 INFO L175 Difference]: Start difference. First operand has 71 places, 47 transitions, 241 flow. Second operand 4 states and 132 transitions. [2024-10-11 14:19:10,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 65 transitions, 357 flow [2024-10-11 14:19:10,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 65 transitions, 326 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-11 14:19:10,907 INFO L231 Difference]: Finished difference. Result has 68 places, 52 transitions, 256 flow [2024-10-11 14:19:10,907 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=256, PETRI_PLACES=68, PETRI_TRANSITIONS=52} [2024-10-11 14:19:10,908 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 17 predicate places. [2024-10-11 14:19:10,908 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 52 transitions, 256 flow [2024-10-11 14:19:10,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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) [2024-10-11 14:19:10,908 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:19:10,908 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] [2024-10-11 14:19:10,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 14:19:10,909 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 2 more)] === [2024-10-11 14:19:10,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:19:10,909 INFO L85 PathProgramCache]: Analyzing trace with hash -9488843, now seen corresponding path program 1 times [2024-10-11 14:19:10,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:19:10,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244474053] [2024-10-11 14:19:10,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:19:10,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:19:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:19:10,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:19:10,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:19:10,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244474053] [2024-10-11 14:19:10,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244474053] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:19:10,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:19:10,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:19:10,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102296306] [2024-10-11 14:19:10,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:19:10,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:19:10,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:19:10,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:19:10,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:19:11,001 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-10-11 14:19:11,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 52 transitions, 256 flow. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 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) [2024-10-11 14:19:11,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:19:11,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-10-11 14:19:11,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:19:11,490 INFO L124 PetriNetUnfolderBase]: 4340/7275 cut-off events. [2024-10-11 14:19:11,490 INFO L125 PetriNetUnfolderBase]: For 3728/5456 co-relation queries the response was YES. [2024-10-11 14:19:11,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18508 conditions, 7275 events. 4340/7275 cut-off events. For 3728/5456 co-relation queries the response was YES. Maximal size of possible extension queue 553. Compared 52747 event pairs, 727 based on Foata normal form. 343/7309 useless extension candidates. Maximal degree in co-relation 18486. Up to 3412 conditions per place. [2024-10-11 14:19:11,534 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 40 selfloop transitions, 10 changer transitions 0/77 dead transitions. [2024-10-11 14:19:11,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 77 transitions, 431 flow [2024-10-11 14:19:11,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:19:11,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 14:19:11,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2024-10-11 14:19:11,535 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7422222222222222 [2024-10-11 14:19:11,536 INFO L175 Difference]: Start difference. First operand has 68 places, 52 transitions, 256 flow. Second operand 5 states and 167 transitions. [2024-10-11 14:19:11,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 77 transitions, 431 flow [2024-10-11 14:19:11,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 77 transitions, 428 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 14:19:11,539 INFO L231 Difference]: Finished difference. Result has 73 places, 57 transitions, 321 flow [2024-10-11 14:19:11,540 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=321, PETRI_PLACES=73, PETRI_TRANSITIONS=57} [2024-10-11 14:19:11,540 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 22 predicate places. [2024-10-11 14:19:11,540 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 57 transitions, 321 flow [2024-10-11 14:19:11,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 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) [2024-10-11 14:19:11,541 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:19:11,541 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] [2024-10-11 14:19:11,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 14:19:11,541 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 2 more)] === [2024-10-11 14:19:11,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:19:11,542 INFO L85 PathProgramCache]: Analyzing trace with hash 388334536, now seen corresponding path program 1 times [2024-10-11 14:19:11,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:19:11,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017743426] [2024-10-11 14:19:11,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:19:11,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:19:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:19:11,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:19:11,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:19:11,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017743426] [2024-10-11 14:19:11,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017743426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:19:11,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:19:11,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 14:19:11,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430696134] [2024-10-11 14:19:11,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:19:11,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 14:19:11,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:19:11,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 14:19:11,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 14:19:11,636 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-10-11 14:19:11,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 57 transitions, 321 flow. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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) [2024-10-11 14:19:11,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:19:11,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-10-11 14:19:11,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:19:12,125 INFO L124 PetriNetUnfolderBase]: 3828/6243 cut-off events. [2024-10-11 14:19:12,126 INFO L125 PetriNetUnfolderBase]: For 8081/11784 co-relation queries the response was YES. [2024-10-11 14:19:12,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18960 conditions, 6243 events. 3828/6243 cut-off events. For 8081/11784 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 42109 event pairs, 225 based on Foata normal form. 326/6316 useless extension candidates. Maximal degree in co-relation 18935. Up to 2992 conditions per place. [2024-10-11 14:19:12,166 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 48 selfloop transitions, 14 changer transitions 0/89 dead transitions. [2024-10-11 14:19:12,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 89 transitions, 554 flow [2024-10-11 14:19:12,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 14:19:12,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 14:19:12,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2024-10-11 14:19:12,168 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7481481481481481 [2024-10-11 14:19:12,168 INFO L175 Difference]: Start difference. First operand has 73 places, 57 transitions, 321 flow. Second operand 6 states and 202 transitions. [2024-10-11 14:19:12,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 89 transitions, 554 flow [2024-10-11 14:19:12,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 89 transitions, 538 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-10-11 14:19:12,175 INFO L231 Difference]: Finished difference. Result has 78 places, 62 transitions, 391 flow [2024-10-11 14:19:12,175 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=391, PETRI_PLACES=78, PETRI_TRANSITIONS=62} [2024-10-11 14:19:12,176 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 27 predicate places. [2024-10-11 14:19:12,176 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 62 transitions, 391 flow [2024-10-11 14:19:12,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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) [2024-10-11 14:19:12,178 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:19:12,178 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:19:12,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 14:19:12,179 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 14:19:12,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:19:12,180 INFO L85 PathProgramCache]: Analyzing trace with hash -226380468, now seen corresponding path program 1 times [2024-10-11 14:19:12,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:19:12,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928920975] [2024-10-11 14:19:12,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:19:12,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:19:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:19:12,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:19:12,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:19:12,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928920975] [2024-10-11 14:19:12,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928920975] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:19:12,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:19:12,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 14:19:12,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155911150] [2024-10-11 14:19:12,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:19:12,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 14:19:12,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:19:12,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 14:19:12,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 14:19:12,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-10-11 14:19:12,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 62 transitions, 391 flow. Second operand has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 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) [2024-10-11 14:19:12,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:19:12,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-10-11 14:19:12,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:19:12,785 INFO L124 PetriNetUnfolderBase]: 3400/5343 cut-off events. [2024-10-11 14:19:12,786 INFO L125 PetriNetUnfolderBase]: For 14514/17669 co-relation queries the response was YES. [2024-10-11 14:19:12,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19047 conditions, 5343 events. 3400/5343 cut-off events. For 14514/17669 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 33958 event pairs, 125 based on Foata normal form. 235/5341 useless extension candidates. Maximal degree in co-relation 19020. Up to 2284 conditions per place. [2024-10-11 14:19:12,816 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 46 selfloop transitions, 18 changer transitions 0/91 dead transitions. [2024-10-11 14:19:12,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 91 transitions, 592 flow [2024-10-11 14:19:12,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 14:19:12,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 14:19:12,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 227 transitions. [2024-10-11 14:19:12,817 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7206349206349206 [2024-10-11 14:19:12,818 INFO L175 Difference]: Start difference. First operand has 78 places, 62 transitions, 391 flow. Second operand 7 states and 227 transitions. [2024-10-11 14:19:12,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 91 transitions, 592 flow [2024-10-11 14:19:12,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 91 transitions, 546 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-10-11 14:19:12,836 INFO L231 Difference]: Finished difference. Result has 81 places, 63 transitions, 409 flow [2024-10-11 14:19:12,836 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=409, PETRI_PLACES=81, PETRI_TRANSITIONS=63} [2024-10-11 14:19:12,837 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 30 predicate places. [2024-10-11 14:19:12,837 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 63 transitions, 409 flow [2024-10-11 14:19:12,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 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) [2024-10-11 14:19:12,837 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:19:12,837 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] [2024-10-11 14:19:12,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 14:19:12,838 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 14:19:12,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:19:12,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1456105085, now seen corresponding path program 1 times [2024-10-11 14:19:12,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:19:12,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972573144] [2024-10-11 14:19:12,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:19:12,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:19:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:19:12,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:19:12,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:19:12,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972573144] [2024-10-11 14:19:12,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972573144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:19:12,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:19:12,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 14:19:12,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823810227] [2024-10-11 14:19:12,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:19:12,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 14:19:12,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:19:12,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 14:19:12,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 14:19:12,956 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-10-11 14:19:12,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 63 transitions, 409 flow. Second operand has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 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) [2024-10-11 14:19:12,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:19:12,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-10-11 14:19:12,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:19:13,298 INFO L124 PetriNetUnfolderBase]: 2331/4588 cut-off events. [2024-10-11 14:19:13,298 INFO L125 PetriNetUnfolderBase]: For 10856/12140 co-relation queries the response was YES. [2024-10-11 14:19:13,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14526 conditions, 4588 events. 2331/4588 cut-off events. For 10856/12140 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 38279 event pairs, 423 based on Foata normal form. 94/4052 useless extension candidates. Maximal degree in co-relation 14499. Up to 1792 conditions per place. [2024-10-11 14:19:13,315 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2024-10-11 14:19:13,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 85 transitions, 569 flow [2024-10-11 14:19:13,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 14:19:13,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 14:19:13,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 181 transitions. [2024-10-11 14:19:13,317 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6703703703703704 [2024-10-11 14:19:13,317 INFO L175 Difference]: Start difference. First operand has 81 places, 63 transitions, 409 flow. Second operand 6 states and 181 transitions. [2024-10-11 14:19:13,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 85 transitions, 569 flow [2024-10-11 14:19:13,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 85 transitions, 502 flow, removed 22 selfloop flow, removed 6 redundant places. [2024-10-11 14:19:13,355 INFO L231 Difference]: Finished difference. Result has 78 places, 0 transitions, 0 flow [2024-10-11 14:19:13,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=78, PETRI_TRANSITIONS=0} [2024-10-11 14:19:13,355 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 27 predicate places. [2024-10-11 14:19:13,355 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 0 transitions, 0 flow [2024-10-11 14:19:13,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 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) [2024-10-11 14:19:13,358 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-10-11 14:19:13,358 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2024-10-11 14:19:13,358 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-11 14:19:13,358 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-11 14:19:13,358 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-11 14:19:13,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 14:19:13,359 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:19:13,361 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 14:19:13,362 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 14:19:13,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:19:13 BasicIcfg [2024-10-11 14:19:13,366 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 14:19:13,366 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 14:19:13,366 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 14:19:13,367 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 14:19:13,367 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:19:03" (3/4) ... [2024-10-11 14:19:13,368 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 14:19:13,371 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-11 14:19:13,371 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-11 14:19:13,371 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-11 14:19:13,371 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-10-11 14:19:13,374 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2024-10-11 14:19:13,375 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-11 14:19:13,375 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-11 14:19:13,375 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 14:19:13,437 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 14:19:13,437 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 14:19:13,437 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 14:19:13,438 INFO L158 Benchmark]: Toolchain (without parser) took 10836.02ms. Allocated memory was 167.8MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 93.2MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 186.3MB. Max. memory is 16.1GB. [2024-10-11 14:19:13,438 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 14:19:13,438 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.77ms. Allocated memory is still 167.8MB. Free memory was 93.0MB in the beginning and 129.0MB in the end (delta: -36.0MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2024-10-11 14:19:13,438 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.24ms. Allocated memory is still 167.8MB. Free memory was 129.0MB in the beginning and 126.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 14:19:13,439 INFO L158 Benchmark]: Boogie Preprocessor took 31.89ms. Allocated memory is still 167.8MB. Free memory was 126.8MB in the beginning and 124.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 14:19:13,439 INFO L158 Benchmark]: RCFGBuilder took 381.44ms. Allocated memory is still 167.8MB. Free memory was 124.8MB in the beginning and 103.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 14:19:13,439 INFO L158 Benchmark]: TraceAbstraction took 9858.88ms. Allocated memory was 167.8MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 103.8MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 190.8MB. Max. memory is 16.1GB. [2024-10-11 14:19:13,439 INFO L158 Benchmark]: Witness Printer took 71.09ms. Allocated memory is still 1.5GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 14:19:13,440 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 452.77ms. Allocated memory is still 167.8MB. Free memory was 93.0MB in the beginning and 129.0MB in the end (delta: -36.0MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.24ms. Allocated memory is still 167.8MB. Free memory was 129.0MB in the beginning and 126.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.89ms. Allocated memory is still 167.8MB. Free memory was 126.8MB in the beginning and 124.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 381.44ms. Allocated memory is still 167.8MB. Free memory was 124.8MB in the beginning and 103.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 9858.88ms. Allocated memory was 167.8MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 103.8MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 190.8MB. Max. memory is 16.1GB. * Witness Printer took 71.09ms. Allocated memory is still 1.5GB. Free memory was 1.2GB in the beginning and 1.2GB 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: 9.8s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 811 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 743 mSDsluCounter, 368 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 259 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1500 IncrementalHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 109 mSDtfsCounter, 1500 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=554occurred in iteration=4, InterpolantAutomatonStates: 98, 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, 1.7s InterpolantComputationTime, 304 NumberOfCodeBlocks, 304 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 1177 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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! [2024-10-11 14:19:13,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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