./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 14:15:03,647 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 14:15:03,706 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-17 14:15:03,711 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 14:15:03,713 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 14:15:03,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 14:15:03,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 14:15:03,734 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 14:15:03,735 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 14:15:03,735 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 14:15:03,736 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 14:15:03,736 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 14:15:03,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 14:15:03,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 14:15:03,736 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 14:15:03,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 14:15:03,737 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 14:15:03,737 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 14:15:03,737 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 14:15:03,737 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 14:15:03,737 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 14:15:03,737 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 14:15:03,737 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-17 14:15:03,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 14:15:03,737 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 14:15:03,737 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 14:15:03,737 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 14:15:03,738 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 14:15:03,738 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 14:15:03,738 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 14:15:03,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 14:15:03,738 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 14:15:03,738 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 14:15:03,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:15:03,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 14:15:03,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 14:15:03,739 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 14:15:03,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 14:15:03,739 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 14:15:03,739 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 14:15:03,739 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 14:15:03,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 14:15:03,739 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2025-03-17 14:15:03,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 14:15:03,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 14:15:03,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 14:15:03,969 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 14:15:03,969 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 14:15:03,970 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2025-03-17 14:15:05,065 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ec3be31/8654f91a98a048cbb23cbeee646fc312/FLAG006b683ed [2025-03-17 14:15:05,344 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 14:15:05,345 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2025-03-17 14:15:05,373 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ec3be31/8654f91a98a048cbb23cbeee646fc312/FLAG006b683ed [2025-03-17 14:15:05,636 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ec3be31/8654f91a98a048cbb23cbeee646fc312 [2025-03-17 14:15:05,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 14:15:05,639 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 14:15:05,640 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 14:15:05,640 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 14:15:05,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 14:15:05,643 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:15:05" (1/1) ... [2025-03-17 14:15:05,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54593ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:15:05, skipping insertion in model container [2025-03-17 14:15:05,644 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:15:05" (1/1) ... [2025-03-17 14:15:05,676 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 14:15:06,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:15:06,060 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 14:15:06,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:15:06,186 INFO L204 MainTranslator]: Completed translation [2025-03-17 14:15:06,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:15:06 WrapperNode [2025-03-17 14:15:06,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 14:15:06,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 14:15:06,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 14:15:06,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 14:15:06,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:15:06" (1/1) ... [2025-03-17 14:15:06,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:15:06" (1/1) ... [2025-03-17 14:15:06,223 INFO L138 Inliner]: procedures = 487, calls = 37, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 209 [2025-03-17 14:15:06,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 14:15:06,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 14:15:06,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 14:15:06,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 14:15:06,230 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:15:06" (1/1) ... [2025-03-17 14:15:06,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:15:06" (1/1) ... [2025-03-17 14:15:06,233 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:15:06" (1/1) ... [2025-03-17 14:15:06,243 INFO L175 MemorySlicer]: Split 9 memory accesses to 4 slices as follows [2, 5, 1, 1]. 56 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0]. The 2 writes are split as follows [0, 0, 1, 1]. [2025-03-17 14:15:06,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:15:06" (1/1) ... [2025-03-17 14:15:06,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:15:06" (1/1) ... [2025-03-17 14:15:06,250 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:15:06" (1/1) ... [2025-03-17 14:15:06,251 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:15:06" (1/1) ... [2025-03-17 14:15:06,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:15:06" (1/1) ... [2025-03-17 14:15:06,254 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:15:06" (1/1) ... [2025-03-17 14:15:06,261 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 14:15:06,262 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 14:15:06,262 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 14:15:06,262 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 14:15:06,262 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:15:06" (1/1) ... [2025-03-17 14:15:06,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:15:06,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:15:06,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 14:15:06,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 14:15:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2025-03-17 14:15:06,314 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2025-03-17 14:15:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 14:15:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2025-03-17 14:15:06,314 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2025-03-17 14:15:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 14:15:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 14:15:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 14:15:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 14:15:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 14:15:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 14:15:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 14:15:06,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 14:15:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 14:15:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 14:15:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 14:15:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 14:15:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 14:15:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 14:15:06,316 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 14:15:06,558 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 14:15:06,560 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 14:15:06,691 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1724: havoc ieee80211_deregister_hw_~#status~0#1.base, ieee80211_deregister_hw_~#status~0#1.offset; [2025-03-17 14:15:06,691 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1724-1: SUMMARY for call ULTIMATE.dealloc(ieee80211_deregister_hw_~#status~0#1.base, ieee80211_deregister_hw_~#status~0#1.offset); srcloc: null [2025-03-17 14:15:06,808 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 14:15:06,809 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 14:15:06,895 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 14:15:06,896 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 14:15:06,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:15:06 BoogieIcfgContainer [2025-03-17 14:15:06,896 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 14:15:06,897 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 14:15:06,897 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 14:15:06,900 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 14:15:06,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:15:05" (1/3) ... [2025-03-17 14:15:06,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798a0ecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:15:06, skipping insertion in model container [2025-03-17 14:15:06,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:15:06" (2/3) ... [2025-03-17 14:15:06,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798a0ecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:15:06, skipping insertion in model container [2025-03-17 14:15:06,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:15:06" (3/3) ... [2025-03-17 14:15:06,902 INFO L128 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2025-03-17 14:15:06,911 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 14:15:06,912 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-4_1-thread_local_vars.i that has 3 procedures, 81 locations, 1 initial locations, 2 loop locations, and 11 error locations. [2025-03-17 14:15:06,913 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 14:15:06,968 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2025-03-17 14:15:06,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 152 transitions, 331 flow [2025-03-17 14:15:07,034 INFO L124 PetriNetUnfolderBase]: 36/156 cut-off events. [2025-03-17 14:15:07,037 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-17 14:15:07,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 156 events. 36/156 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 484 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 107. Up to 11 conditions per place. [2025-03-17 14:15:07,042 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 152 transitions, 331 flow [2025-03-17 14:15:07,045 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 106 transitions, 228 flow [2025-03-17 14:15:07,049 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 14:15:07,058 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=None, 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;@240d0635, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 14:15:07,058 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2025-03-17 14:15:07,060 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 14:15:07,061 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2025-03-17 14:15:07,061 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 14:15:07,061 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:07,061 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-17 14:15:07,061 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:07,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:07,065 INFO L85 PathProgramCache]: Analyzing trace with hash 16292727, now seen corresponding path program 1 times [2025-03-17 14:15:07,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:07,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555664820] [2025-03-17 14:15:07,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:07,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:07,174 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 14:15:07,188 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 14:15:07,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:07,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:07,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:07,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:07,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555664820] [2025-03-17 14:15:07,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555664820] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:07,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:07,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:15:07,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568196798] [2025-03-17 14:15:07,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:07,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:15:07,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:07,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:15:07,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:15:07,392 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 152 [2025-03-17 14:15:07,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 106 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2025-03-17 14:15:07,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:07,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 152 [2025-03-17 14:15:07,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:07,874 INFO L124 PetriNetUnfolderBase]: 2021/3758 cut-off events. [2025-03-17 14:15:07,874 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2025-03-17 14:15:07,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6828 conditions, 3758 events. 2021/3758 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 25142 event pairs, 1646 based on Foata normal form. 321/3593 useless extension candidates. Maximal degree in co-relation 6486. Up to 2973 conditions per place. [2025-03-17 14:15:07,900 INFO L140 encePairwiseOnDemand]: 135/152 looper letters, 54 selfloop transitions, 6 changer transitions 0/88 dead transitions. [2025-03-17 14:15:07,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 88 transitions, 312 flow [2025-03-17 14:15:07,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:15:07,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:15:07,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 233 transitions. [2025-03-17 14:15:07,909 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5109649122807017 [2025-03-17 14:15:07,910 INFO L175 Difference]: Start difference. First operand has 86 places, 106 transitions, 228 flow. Second operand 3 states and 233 transitions. [2025-03-17 14:15:07,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 88 transitions, 312 flow [2025-03-17 14:15:07,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 88 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 14:15:07,917 INFO L231 Difference]: Finished difference. Result has 71 places, 77 transitions, 178 flow [2025-03-17 14:15:07,920 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=71, PETRI_TRANSITIONS=77} [2025-03-17 14:15:07,923 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -15 predicate places. [2025-03-17 14:15:07,923 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 77 transitions, 178 flow [2025-03-17 14:15:07,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2025-03-17 14:15:07,924 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:07,924 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:07,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 14:15:07,924 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:07,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:07,924 INFO L85 PathProgramCache]: Analyzing trace with hash 880447603, now seen corresponding path program 1 times [2025-03-17 14:15:07,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:07,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103215021] [2025-03-17 14:15:07,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:07,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:07,952 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 14:15:07,962 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 14:15:07,962 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:07,962 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:08,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:08,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:08,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103215021] [2025-03-17 14:15:08,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103215021] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:08,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:08,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:15:08,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368932871] [2025-03-17 14:15:08,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:08,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:15:08,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:08,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:15:08,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:15:08,022 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2025-03-17 14:15:08,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 77 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2025-03-17 14:15:08,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:08,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2025-03-17 14:15:08,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:08,539 INFO L124 PetriNetUnfolderBase]: 4070/7214 cut-off events. [2025-03-17 14:15:08,539 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2025-03-17 14:15:08,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13263 conditions, 7214 events. 4070/7214 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 45937 event pairs, 2104 based on Foata normal form. 0/6146 useless extension candidates. Maximal degree in co-relation 12975. Up to 3582 conditions per place. [2025-03-17 14:15:08,574 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 77 selfloop transitions, 5 changer transitions 3/114 dead transitions. [2025-03-17 14:15:08,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 114 transitions, 429 flow [2025-03-17 14:15:08,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:15:08,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:15:08,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2025-03-17 14:15:08,578 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5482456140350878 [2025-03-17 14:15:08,579 INFO L175 Difference]: Start difference. First operand has 71 places, 77 transitions, 178 flow. Second operand 3 states and 250 transitions. [2025-03-17 14:15:08,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 114 transitions, 429 flow [2025-03-17 14:15:08,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 114 transitions, 417 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 14:15:08,583 INFO L231 Difference]: Finished difference. Result has 73 places, 78 transitions, 198 flow [2025-03-17 14:15:08,583 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=73, PETRI_TRANSITIONS=78} [2025-03-17 14:15:08,584 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -13 predicate places. [2025-03-17 14:15:08,584 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 78 transitions, 198 flow [2025-03-17 14:15:08,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2025-03-17 14:15:08,584 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:08,584 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:08,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 14:15:08,584 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:08,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:08,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1699640815, now seen corresponding path program 1 times [2025-03-17 14:15:08,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:08,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788700056] [2025-03-17 14:15:08,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:08,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:08,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-17 14:15:08,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-17 14:15:08,630 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:08,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:08,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:08,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:08,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788700056] [2025-03-17 14:15:08,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788700056] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:08,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:08,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 14:15:08,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265770138] [2025-03-17 14:15:08,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:08,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:15:08,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:08,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:15:08,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:15:08,722 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 152 [2025-03-17 14:15:08,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 78 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 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) [2025-03-17 14:15:08,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:08,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 152 [2025-03-17 14:15:08,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:09,093 INFO L124 PetriNetUnfolderBase]: 2374/3898 cut-off events. [2025-03-17 14:15:09,093 INFO L125 PetriNetUnfolderBase]: For 377/377 co-relation queries the response was YES. [2025-03-17 14:15:09,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8233 conditions, 3898 events. 2374/3898 cut-off events. For 377/377 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 21864 event pairs, 268 based on Foata normal form. 353/4003 useless extension candidates. Maximal degree in co-relation 4509. Up to 1873 conditions per place. [2025-03-17 14:15:09,112 INFO L140 encePairwiseOnDemand]: 148/152 looper letters, 107 selfloop transitions, 4 changer transitions 0/141 dead transitions. [2025-03-17 14:15:09,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 141 transitions, 574 flow [2025-03-17 14:15:09,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:15:09,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 14:15:09,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 332 transitions. [2025-03-17 14:15:09,113 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5460526315789473 [2025-03-17 14:15:09,114 INFO L175 Difference]: Start difference. First operand has 73 places, 78 transitions, 198 flow. Second operand 4 states and 332 transitions. [2025-03-17 14:15:09,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 141 transitions, 574 flow [2025-03-17 14:15:09,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 141 transitions, 560 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-17 14:15:09,116 INFO L231 Difference]: Finished difference. Result has 72 places, 75 transitions, 184 flow [2025-03-17 14:15:09,116 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=72, PETRI_TRANSITIONS=75} [2025-03-17 14:15:09,117 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -14 predicate places. [2025-03-17 14:15:09,117 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 75 transitions, 184 flow [2025-03-17 14:15:09,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 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) [2025-03-17 14:15:09,117 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:09,117 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:09,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 14:15:09,118 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:09,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:09,118 INFO L85 PathProgramCache]: Analyzing trace with hash 789005887, now seen corresponding path program 1 times [2025-03-17 14:15:09,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:09,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785179712] [2025-03-17 14:15:09,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:09,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:09,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-17 14:15:09,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-17 14:15:09,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:09,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:09,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:09,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:09,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785179712] [2025-03-17 14:15:09,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785179712] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:09,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:09,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:15:09,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451503492] [2025-03-17 14:15:09,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:09,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:15:09,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:09,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:15:09,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:15:09,197 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 152 [2025-03-17 14:15:09,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 75 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2025-03-17 14:15:09,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:09,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 152 [2025-03-17 14:15:09,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:09,514 INFO L124 PetriNetUnfolderBase]: 2336/4120 cut-off events. [2025-03-17 14:15:09,514 INFO L125 PetriNetUnfolderBase]: For 1729/1729 co-relation queries the response was YES. [2025-03-17 14:15:09,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9001 conditions, 4120 events. 2336/4120 cut-off events. For 1729/1729 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 22616 event pairs, 1456 based on Foata normal form. 0/3784 useless extension candidates. Maximal degree in co-relation 3095. Up to 2917 conditions per place. [2025-03-17 14:15:09,539 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 56 selfloop transitions, 4 changer transitions 0/84 dead transitions. [2025-03-17 14:15:09,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 84 transitions, 334 flow [2025-03-17 14:15:09,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:15:09,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:15:09,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 221 transitions. [2025-03-17 14:15:09,540 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48464912280701755 [2025-03-17 14:15:09,540 INFO L175 Difference]: Start difference. First operand has 72 places, 75 transitions, 184 flow. Second operand 3 states and 221 transitions. [2025-03-17 14:15:09,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 84 transitions, 334 flow [2025-03-17 14:15:09,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 84 transitions, 318 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 14:15:09,543 INFO L231 Difference]: Finished difference. Result has 65 places, 69 transitions, 172 flow [2025-03-17 14:15:09,543 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=65, PETRI_TRANSITIONS=69} [2025-03-17 14:15:09,545 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -21 predicate places. [2025-03-17 14:15:09,545 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 69 transitions, 172 flow [2025-03-17 14:15:09,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2025-03-17 14:15:09,546 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:09,546 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:09,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 14:15:09,546 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:09,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:09,547 INFO L85 PathProgramCache]: Analyzing trace with hash -193656355, now seen corresponding path program 1 times [2025-03-17 14:15:09,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:09,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371601449] [2025-03-17 14:15:09,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:09,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:09,564 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 14:15:09,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 14:15:09,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:09,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:09,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:09,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:09,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371601449] [2025-03-17 14:15:09,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371601449] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:09,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:09,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:15:09,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642260676] [2025-03-17 14:15:09,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:09,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:15:09,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:09,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:15:09,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:15:09,671 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2025-03-17 14:15:09,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 69 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:15:09,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:09,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2025-03-17 14:15:09,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:09,938 INFO L124 PetriNetUnfolderBase]: 2362/4298 cut-off events. [2025-03-17 14:15:09,938 INFO L125 PetriNetUnfolderBase]: For 612/618 co-relation queries the response was YES. [2025-03-17 14:15:09,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8507 conditions, 4298 events. 2362/4298 cut-off events. For 612/618 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 25183 event pairs, 1441 based on Foata normal form. 6/3936 useless extension candidates. Maximal degree in co-relation 3426. Up to 2855 conditions per place. [2025-03-17 14:15:09,953 INFO L140 encePairwiseOnDemand]: 147/152 looper letters, 71 selfloop transitions, 5 changer transitions 0/101 dead transitions. [2025-03-17 14:15:09,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 101 transitions, 410 flow [2025-03-17 14:15:09,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:15:09,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:15:09,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2025-03-17 14:15:09,954 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2025-03-17 14:15:09,954 INFO L175 Difference]: Start difference. First operand has 65 places, 69 transitions, 172 flow. Second operand 3 states and 240 transitions. [2025-03-17 14:15:09,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 101 transitions, 410 flow [2025-03-17 14:15:09,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 101 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 14:15:09,957 INFO L231 Difference]: Finished difference. Result has 67 places, 71 transitions, 196 flow [2025-03-17 14:15:09,958 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=67, PETRI_TRANSITIONS=71} [2025-03-17 14:15:09,958 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -19 predicate places. [2025-03-17 14:15:09,958 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 71 transitions, 196 flow [2025-03-17 14:15:09,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:15:09,958 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:09,958 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:09,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 14:15:09,958 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:09,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:09,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1601458770, now seen corresponding path program 1 times [2025-03-17 14:15:09,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:09,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963868804] [2025-03-17 14:15:09,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:09,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:09,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 14:15:09,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 14:15:09,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:09,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:10,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:10,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:10,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963868804] [2025-03-17 14:15:10,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963868804] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:10,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:10,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:15:10,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514214720] [2025-03-17 14:15:10,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:10,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:15:10,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:10,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:15:10,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:15:10,066 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2025-03-17 14:15:10,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 71 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:15:10,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:10,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2025-03-17 14:15:10,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:10,338 INFO L124 PetriNetUnfolderBase]: 2349/4259 cut-off events. [2025-03-17 14:15:10,338 INFO L125 PetriNetUnfolderBase]: For 1954/1964 co-relation queries the response was YES. [2025-03-17 14:15:10,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8914 conditions, 4259 events. 2349/4259 cut-off events. For 1954/1964 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 24845 event pairs, 1430 based on Foata normal form. 32/3938 useless extension candidates. Maximal degree in co-relation 5559. Up to 2489 conditions per place. [2025-03-17 14:15:10,354 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 72 selfloop transitions, 3 changer transitions 0/100 dead transitions. [2025-03-17 14:15:10,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 100 transitions, 419 flow [2025-03-17 14:15:10,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:15:10,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:15:10,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 237 transitions. [2025-03-17 14:15:10,356 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5197368421052632 [2025-03-17 14:15:10,357 INFO L175 Difference]: Start difference. First operand has 67 places, 71 transitions, 196 flow. Second operand 3 states and 237 transitions. [2025-03-17 14:15:10,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 100 transitions, 419 flow [2025-03-17 14:15:10,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 100 transitions, 409 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 14:15:10,363 INFO L231 Difference]: Finished difference. Result has 66 places, 70 transitions, 190 flow [2025-03-17 14:15:10,364 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=66, PETRI_TRANSITIONS=70} [2025-03-17 14:15:10,365 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -20 predicate places. [2025-03-17 14:15:10,365 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 70 transitions, 190 flow [2025-03-17 14:15:10,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:15:10,365 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:10,365 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:10,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 14:15:10,366 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:10,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:10,367 INFO L85 PathProgramCache]: Analyzing trace with hash -68041101, now seen corresponding path program 1 times [2025-03-17 14:15:10,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:10,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026075153] [2025-03-17 14:15:10,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:10,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:10,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 14:15:10,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 14:15:10,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:10,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:10,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:10,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:10,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026075153] [2025-03-17 14:15:10,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026075153] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:10,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:10,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:15:10,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344439266] [2025-03-17 14:15:10,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:10,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:15:10,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:10,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:15:10,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:15:10,426 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2025-03-17 14:15:10,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 70 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:15:10,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:10,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2025-03-17 14:15:10,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:10,673 INFO L124 PetriNetUnfolderBase]: 2349/4023 cut-off events. [2025-03-17 14:15:10,673 INFO L125 PetriNetUnfolderBase]: For 1952/1954 co-relation queries the response was YES. [2025-03-17 14:15:10,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8639 conditions, 4023 events. 2349/4023 cut-off events. For 1952/1954 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 21291 event pairs, 1390 based on Foata normal form. 0/3649 useless extension candidates. Maximal degree in co-relation 5334. Up to 2927 conditions per place. [2025-03-17 14:15:10,687 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 64 selfloop transitions, 2 changer transitions 2/90 dead transitions. [2025-03-17 14:15:10,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 90 transitions, 393 flow [2025-03-17 14:15:10,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:15:10,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:15:10,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 227 transitions. [2025-03-17 14:15:10,688 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49780701754385964 [2025-03-17 14:15:10,688 INFO L175 Difference]: Start difference. First operand has 66 places, 70 transitions, 190 flow. Second operand 3 states and 227 transitions. [2025-03-17 14:15:10,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 90 transitions, 393 flow [2025-03-17 14:15:10,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 90 transitions, 381 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 14:15:10,692 INFO L231 Difference]: Finished difference. Result has 63 places, 66 transitions, 178 flow [2025-03-17 14:15:10,692 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=63, PETRI_TRANSITIONS=66} [2025-03-17 14:15:10,694 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -23 predicate places. [2025-03-17 14:15:10,694 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 66 transitions, 178 flow [2025-03-17 14:15:10,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:15:10,694 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:10,694 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:10,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 14:15:10,694 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbThread1of1ForFork1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:10,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:10,694 INFO L85 PathProgramCache]: Analyzing trace with hash -168844526, now seen corresponding path program 1 times [2025-03-17 14:15:10,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:10,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342965000] [2025-03-17 14:15:10,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:10,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:10,706 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-17 14:15:10,711 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-17 14:15:10,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:10,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:10,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:10,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:10,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342965000] [2025-03-17 14:15:10,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342965000] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:10,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:10,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:15:10,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670378879] [2025-03-17 14:15:10,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:10,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:15:10,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:10,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:15:10,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:15:10,762 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 152 [2025-03-17 14:15:10,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 66 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2025-03-17 14:15:10,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:10,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 152 [2025-03-17 14:15:10,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:10,973 INFO L124 PetriNetUnfolderBase]: 2069/3672 cut-off events. [2025-03-17 14:15:10,973 INFO L125 PetriNetUnfolderBase]: For 1023/1024 co-relation queries the response was YES. [2025-03-17 14:15:10,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7423 conditions, 3672 events. 2069/3672 cut-off events. For 1023/1024 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 20094 event pairs, 659 based on Foata normal form. 288/3706 useless extension candidates. Maximal degree in co-relation 5003. Up to 1525 conditions per place. [2025-03-17 14:15:10,983 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 60 selfloop transitions, 3 changer transitions 2/85 dead transitions. [2025-03-17 14:15:10,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 85 transitions, 361 flow [2025-03-17 14:15:10,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:15:10,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:15:10,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2025-03-17 14:15:10,984 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4780701754385965 [2025-03-17 14:15:10,984 INFO L175 Difference]: Start difference. First operand has 63 places, 66 transitions, 178 flow. Second operand 3 states and 218 transitions. [2025-03-17 14:15:10,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 85 transitions, 361 flow [2025-03-17 14:15:10,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 85 transitions, 347 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-17 14:15:10,987 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 187 flow [2025-03-17 14:15:10,987 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=187, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2025-03-17 14:15:10,988 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -25 predicate places. [2025-03-17 14:15:10,988 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 187 flow [2025-03-17 14:15:10,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2025-03-17 14:15:10,989 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:10,989 INFO L206 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] [2025-03-17 14:15:10,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 14:15:10,989 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:10,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:10,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1038164830, now seen corresponding path program 1 times [2025-03-17 14:15:10,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:10,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092059576] [2025-03-17 14:15:10,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:10,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:11,003 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-17 14:15:11,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-17 14:15:11,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:11,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:11,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:11,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:11,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092059576] [2025-03-17 14:15:11,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092059576] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:11,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:11,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:15:11,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277540374] [2025-03-17 14:15:11,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:11,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:15:11,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:11,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:15:11,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:15:11,131 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2025-03-17 14:15:11,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 187 flow. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 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) [2025-03-17 14:15:11,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:11,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2025-03-17 14:15:11,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:11,410 INFO L124 PetriNetUnfolderBase]: 2172/3984 cut-off events. [2025-03-17 14:15:11,411 INFO L125 PetriNetUnfolderBase]: For 1274/1280 co-relation queries the response was YES. [2025-03-17 14:15:11,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8231 conditions, 3984 events. 2172/3984 cut-off events. For 1274/1280 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 22655 event pairs, 1103 based on Foata normal form. 15/3760 useless extension candidates. Maximal degree in co-relation 2302. Up to 1887 conditions per place. [2025-03-17 14:15:11,426 INFO L140 encePairwiseOnDemand]: 147/152 looper letters, 85 selfloop transitions, 4 changer transitions 8/118 dead transitions. [2025-03-17 14:15:11,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 118 transitions, 510 flow [2025-03-17 14:15:11,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:15:11,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 14:15:11,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 316 transitions. [2025-03-17 14:15:11,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5197368421052632 [2025-03-17 14:15:11,430 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 187 flow. Second operand 4 states and 316 transitions. [2025-03-17 14:15:11,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 118 transitions, 510 flow [2025-03-17 14:15:11,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 118 transitions, 500 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 14:15:11,433 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 206 flow [2025-03-17 14:15:11,434 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=206, PETRI_PLACES=64, PETRI_TRANSITIONS=66} [2025-03-17 14:15:11,434 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -22 predicate places. [2025-03-17 14:15:11,435 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 206 flow [2025-03-17 14:15:11,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 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) [2025-03-17 14:15:11,435 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:11,435 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:11,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 14:15:11,435 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:11,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:11,436 INFO L85 PathProgramCache]: Analyzing trace with hash -670204155, now seen corresponding path program 1 times [2025-03-17 14:15:11,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:11,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612005152] [2025-03-17 14:15:11,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:11,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:11,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-17 14:15:11,451 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-17 14:15:11,451 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:11,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:11,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:11,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:11,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612005152] [2025-03-17 14:15:11,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612005152] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:11,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:11,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:15:11,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648921733] [2025-03-17 14:15:11,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:11,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:15:11,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:11,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:15:11,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:15:11,519 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2025-03-17 14:15:11,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 66 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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) [2025-03-17 14:15:11,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:11,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2025-03-17 14:15:11,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:11,703 INFO L124 PetriNetUnfolderBase]: 1938/3590 cut-off events. [2025-03-17 14:15:11,703 INFO L125 PetriNetUnfolderBase]: For 2229/2230 co-relation queries the response was YES. [2025-03-17 14:15:11,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7916 conditions, 3590 events. 1938/3590 cut-off events. For 2229/2230 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 20092 event pairs, 1477 based on Foata normal form. 5/3357 useless extension candidates. Maximal degree in co-relation 5425. Up to 2814 conditions per place. [2025-03-17 14:15:11,714 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 52 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2025-03-17 14:15:11,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 78 transitions, 348 flow [2025-03-17 14:15:11,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:15:11,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:15:11,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2025-03-17 14:15:11,716 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4780701754385965 [2025-03-17 14:15:11,716 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 206 flow. Second operand 3 states and 218 transitions. [2025-03-17 14:15:11,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 78 transitions, 348 flow [2025-03-17 14:15:11,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 78 transitions, 335 flow, removed 2 selfloop flow, removed 3 redundant places. [2025-03-17 14:15:11,718 INFO L231 Difference]: Finished difference. Result has 62 places, 65 transitions, 201 flow [2025-03-17 14:15:11,718 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=62, PETRI_TRANSITIONS=65} [2025-03-17 14:15:11,719 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -24 predicate places. [2025-03-17 14:15:11,719 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 65 transitions, 201 flow [2025-03-17 14:15:11,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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) [2025-03-17 14:15:11,719 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:11,719 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:11,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 14:15:11,719 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread_usbErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:11,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:11,720 INFO L85 PathProgramCache]: Analyzing trace with hash -670204156, now seen corresponding path program 1 times [2025-03-17 14:15:11,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:11,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118302344] [2025-03-17 14:15:11,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:11,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:11,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-17 14:15:11,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-17 14:15:11,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:11,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:11,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:11,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:11,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118302344] [2025-03-17 14:15:11,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118302344] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:11,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:11,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:15:11,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537996938] [2025-03-17 14:15:11,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:11,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:15:11,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:11,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:15:11,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:15:11,781 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2025-03-17 14:15:11,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 65 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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) [2025-03-17 14:15:11,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:11,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2025-03-17 14:15:11,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:11,971 INFO L124 PetriNetUnfolderBase]: 1938/3585 cut-off events. [2025-03-17 14:15:11,972 INFO L125 PetriNetUnfolderBase]: For 1999/2000 co-relation queries the response was YES. [2025-03-17 14:15:11,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7799 conditions, 3585 events. 1938/3585 cut-off events. For 1999/2000 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 20020 event pairs, 1477 based on Foata normal form. 5/3352 useless extension candidates. Maximal degree in co-relation 5391. Up to 2814 conditions per place. [2025-03-17 14:15:11,981 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 52 selfloop transitions, 5 changer transitions 0/77 dead transitions. [2025-03-17 14:15:11,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 77 transitions, 343 flow [2025-03-17 14:15:11,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:15:11,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 14:15:11,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2025-03-17 14:15:11,983 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4780701754385965 [2025-03-17 14:15:11,983 INFO L175 Difference]: Start difference. First operand has 62 places, 65 transitions, 201 flow. Second operand 3 states and 218 transitions. [2025-03-17 14:15:11,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 77 transitions, 343 flow [2025-03-17 14:15:11,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 77 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 14:15:11,986 INFO L231 Difference]: Finished difference. Result has 61 places, 64 transitions, 199 flow [2025-03-17 14:15:11,986 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=199, PETRI_PLACES=61, PETRI_TRANSITIONS=64} [2025-03-17 14:15:11,986 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -25 predicate places. [2025-03-17 14:15:11,986 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 64 transitions, 199 flow [2025-03-17 14:15:11,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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) [2025-03-17 14:15:11,986 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:11,987 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 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, 1] [2025-03-17 14:15:11,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 14:15:11,987 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:11,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:11,988 INFO L85 PathProgramCache]: Analyzing trace with hash -847480813, now seen corresponding path program 1 times [2025-03-17 14:15:11,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:11,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066511122] [2025-03-17 14:15:11,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:11,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:12,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 14:15:12,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 14:15:12,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:12,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:12,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:12,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:12,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066511122] [2025-03-17 14:15:12,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066511122] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:12,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:12,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:15:12,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729790195] [2025-03-17 14:15:12,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:12,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:15:12,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:12,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:15:12,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:15:12,177 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 152 [2025-03-17 14:15:12,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 64 transitions, 199 flow. Second operand has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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) [2025-03-17 14:15:12,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:12,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 152 [2025-03-17 14:15:12,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:12,437 INFO L124 PetriNetUnfolderBase]: 2097/3919 cut-off events. [2025-03-17 14:15:12,437 INFO L125 PetriNetUnfolderBase]: For 2157/2169 co-relation queries the response was YES. [2025-03-17 14:15:12,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8544 conditions, 3919 events. 2097/3919 cut-off events. For 2157/2169 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 23072 event pairs, 1201 based on Foata normal form. 12/3664 useless extension candidates. Maximal degree in co-relation 6106. Up to 2201 conditions per place. [2025-03-17 14:15:12,447 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 80 selfloop transitions, 9 changer transitions 0/108 dead transitions. [2025-03-17 14:15:12,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 108 transitions, 501 flow [2025-03-17 14:15:12,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:15:12,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 14:15:12,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 301 transitions. [2025-03-17 14:15:12,452 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49506578947368424 [2025-03-17 14:15:12,453 INFO L175 Difference]: Start difference. First operand has 61 places, 64 transitions, 199 flow. Second operand 4 states and 301 transitions. [2025-03-17 14:15:12,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 108 transitions, 501 flow [2025-03-17 14:15:12,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 108 transitions, 485 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 14:15:12,456 INFO L231 Difference]: Finished difference. Result has 65 places, 68 transitions, 261 flow [2025-03-17 14:15:12,456 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=261, PETRI_PLACES=65, PETRI_TRANSITIONS=68} [2025-03-17 14:15:12,458 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -21 predicate places. [2025-03-17 14:15:12,458 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 68 transitions, 261 flow [2025-03-17 14:15:12,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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) [2025-03-17 14:15:12,459 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:12,459 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 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, 1] [2025-03-17 14:15:12,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 14:15:12,459 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:12,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:12,460 INFO L85 PathProgramCache]: Analyzing trace with hash -631770683, now seen corresponding path program 2 times [2025-03-17 14:15:12,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:12,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233417478] [2025-03-17 14:15:12,461 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:15:12,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:12,476 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 1 equivalence classes. [2025-03-17 14:15:12,485 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 14:15:12,485 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 14:15:12,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:12,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:12,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:12,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233417478] [2025-03-17 14:15:12,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233417478] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:12,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:12,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 14:15:12,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015439987] [2025-03-17 14:15:12,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:12,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:15:12,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:12,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:15:12,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:15:12,643 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 152 [2025-03-17 14:15:12,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 68 transitions, 261 flow. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 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) [2025-03-17 14:15:12,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:12,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 152 [2025-03-17 14:15:12,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:12,953 INFO L124 PetriNetUnfolderBase]: 2088/3891 cut-off events. [2025-03-17 14:15:12,953 INFO L125 PetriNetUnfolderBase]: For 4220/4238 co-relation queries the response was YES. [2025-03-17 14:15:12,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9044 conditions, 3891 events. 2088/3891 cut-off events. For 4220/4238 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 22756 event pairs, 1131 based on Foata normal form. 30/3672 useless extension candidates. Maximal degree in co-relation 6302. Up to 1784 conditions per place. [2025-03-17 14:15:12,962 INFO L140 encePairwiseOnDemand]: 147/152 looper letters, 86 selfloop transitions, 14 changer transitions 0/119 dead transitions. [2025-03-17 14:15:12,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 119 transitions, 590 flow [2025-03-17 14:15:12,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:15:12,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 14:15:12,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 362 transitions. [2025-03-17 14:15:12,963 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4763157894736842 [2025-03-17 14:15:12,963 INFO L175 Difference]: Start difference. First operand has 65 places, 68 transitions, 261 flow. Second operand 5 states and 362 transitions. [2025-03-17 14:15:12,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 119 transitions, 590 flow [2025-03-17 14:15:12,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 119 transitions, 578 flow, removed 6 selfloop flow, removed 0 redundant places. [2025-03-17 14:15:12,969 INFO L231 Difference]: Finished difference. Result has 68 places, 70 transitions, 301 flow [2025-03-17 14:15:12,969 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=301, PETRI_PLACES=68, PETRI_TRANSITIONS=70} [2025-03-17 14:15:12,970 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -18 predicate places. [2025-03-17 14:15:12,970 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 70 transitions, 301 flow [2025-03-17 14:15:12,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 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) [2025-03-17 14:15:12,970 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:12,970 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 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, 1, 1, 1, 1, 1] [2025-03-17 14:15:12,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 14:15:12,971 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:12,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:12,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1065653614, now seen corresponding path program 1 times [2025-03-17 14:15:12,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:12,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558306819] [2025-03-17 14:15:12,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:15:12,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:12,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-17 14:15:12,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-17 14:15:12,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:15:12,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:13,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 14:15:13,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:13,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558306819] [2025-03-17 14:15:13,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558306819] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:13,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:13,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:15:13,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194778926] [2025-03-17 14:15:13,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:13,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:15:13,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:13,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:15:13,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:15:13,174 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2025-03-17 14:15:13,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 70 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 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) [2025-03-17 14:15:13,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:13,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2025-03-17 14:15:13,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:13,482 INFO L124 PetriNetUnfolderBase]: 2186/4090 cut-off events. [2025-03-17 14:15:13,483 INFO L125 PetriNetUnfolderBase]: For 5827/5851 co-relation queries the response was YES. [2025-03-17 14:15:13,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9718 conditions, 4090 events. 2186/4090 cut-off events. For 5827/5851 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 24144 event pairs, 1199 based on Foata normal form. 35/3873 useless extension candidates. Maximal degree in co-relation 6853. Up to 1783 conditions per place. [2025-03-17 14:15:13,497 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 101 selfloop transitions, 9 changer transitions 8/136 dead transitions. [2025-03-17 14:15:13,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 136 transitions, 702 flow [2025-03-17 14:15:13,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:15:13,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 14:15:13,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 386 transitions. [2025-03-17 14:15:13,499 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5078947368421053 [2025-03-17 14:15:13,499 INFO L175 Difference]: Start difference. First operand has 68 places, 70 transitions, 301 flow. Second operand 5 states and 386 transitions. [2025-03-17 14:15:13,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 136 transitions, 702 flow [2025-03-17 14:15:13,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 136 transitions, 688 flow, removed 7 selfloop flow, removed 0 redundant places. [2025-03-17 14:15:13,510 INFO L231 Difference]: Finished difference. Result has 74 places, 70 transitions, 329 flow [2025-03-17 14:15:13,510 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=329, PETRI_PLACES=74, PETRI_TRANSITIONS=70} [2025-03-17 14:15:13,510 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -12 predicate places. [2025-03-17 14:15:13,511 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 70 transitions, 329 flow [2025-03-17 14:15:13,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 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) [2025-03-17 14:15:13,511 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:13,511 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 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, 1, 1, 1, 1, 1] [2025-03-17 14:15:13,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 14:15:13,511 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:13,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:13,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1211853572, now seen corresponding path program 2 times [2025-03-17 14:15:13,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:13,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400701210] [2025-03-17 14:15:13,512 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:15:13,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:13,527 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 46 statements into 1 equivalence classes. [2025-03-17 14:15:13,535 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-17 14:15:13,535 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 14:15:13,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:13,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:13,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:13,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400701210] [2025-03-17 14:15:13,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400701210] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:13,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:13,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 14:15:13,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904618236] [2025-03-17 14:15:13,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:13,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:15:13,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:13,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:15:13,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:15:13,864 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2025-03-17 14:15:13,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 70 transitions, 329 flow. Second operand has 6 states, 6 states have (on average 60.666666666666664) internal successors, (364), 6 states have internal predecessors, (364), 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) [2025-03-17 14:15:13,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:13,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2025-03-17 14:15:13,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:14,212 INFO L124 PetriNetUnfolderBase]: 2484/4691 cut-off events. [2025-03-17 14:15:14,213 INFO L125 PetriNetUnfolderBase]: For 10084/10114 co-relation queries the response was YES. [2025-03-17 14:15:14,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11437 conditions, 4691 events. 2484/4691 cut-off events. For 10084/10114 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 27386 event pairs, 1292 based on Foata normal form. 41/4439 useless extension candidates. Maximal degree in co-relation 9481. Up to 2183 conditions per place. [2025-03-17 14:15:14,225 INFO L140 encePairwiseOnDemand]: 145/152 looper letters, 125 selfloop transitions, 6 changer transitions 12/161 dead transitions. [2025-03-17 14:15:14,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 161 transitions, 854 flow [2025-03-17 14:15:14,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 14:15:14,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 14:15:14,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 465 transitions. [2025-03-17 14:15:14,227 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5098684210526315 [2025-03-17 14:15:14,227 INFO L175 Difference]: Start difference. First operand has 74 places, 70 transitions, 329 flow. Second operand 6 states and 465 transitions. [2025-03-17 14:15:14,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 161 transitions, 854 flow [2025-03-17 14:15:14,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 161 transitions, 819 flow, removed 7 selfloop flow, removed 4 redundant places. [2025-03-17 14:15:14,237 INFO L231 Difference]: Finished difference. Result has 79 places, 72 transitions, 356 flow [2025-03-17 14:15:14,237 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=356, PETRI_PLACES=79, PETRI_TRANSITIONS=72} [2025-03-17 14:15:14,237 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -7 predicate places. [2025-03-17 14:15:14,237 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 72 transitions, 356 flow [2025-03-17 14:15:14,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.666666666666664) internal successors, (364), 6 states have internal predecessors, (364), 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) [2025-03-17 14:15:14,238 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:14,238 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 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, 1, 1, 1, 1, 1] [2025-03-17 14:15:14,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-17 14:15:14,238 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:14,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:14,239 INFO L85 PathProgramCache]: Analyzing trace with hash -861437196, now seen corresponding path program 3 times [2025-03-17 14:15:14,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:14,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707250198] [2025-03-17 14:15:14,239 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:15:14,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:14,250 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 46 statements into 1 equivalence classes. [2025-03-17 14:15:14,255 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-17 14:15:14,256 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 14:15:14,256 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:14,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:14,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:14,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707250198] [2025-03-17 14:15:14,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707250198] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:14,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:14,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 14:15:14,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87588976] [2025-03-17 14:15:14,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:14,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:15:14,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:14,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:15:14,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:15:14,500 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2025-03-17 14:15:14,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 72 transitions, 356 flow. Second operand has 7 states, 7 states have (on average 59.857142857142854) internal successors, (419), 7 states have internal predecessors, (419), 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) [2025-03-17 14:15:14,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:14,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2025-03-17 14:15:14,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:14,961 INFO L124 PetriNetUnfolderBase]: 2592/5009 cut-off events. [2025-03-17 14:15:14,961 INFO L125 PetriNetUnfolderBase]: For 10120/10150 co-relation queries the response was YES. [2025-03-17 14:15:14,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12183 conditions, 5009 events. 2592/5009 cut-off events. For 10120/10150 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 29516 event pairs, 1435 based on Foata normal form. 41/4717 useless extension candidates. Maximal degree in co-relation 10324. Up to 1781 conditions per place. [2025-03-17 14:15:14,974 INFO L140 encePairwiseOnDemand]: 145/152 looper letters, 132 selfloop transitions, 15 changer transitions 13/178 dead transitions. [2025-03-17 14:15:14,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 178 transitions, 948 flow [2025-03-17 14:15:14,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:15:14,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-17 14:15:14,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 535 transitions. [2025-03-17 14:15:14,975 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5028195488721805 [2025-03-17 14:15:14,975 INFO L175 Difference]: Start difference. First operand has 79 places, 72 transitions, 356 flow. Second operand 7 states and 535 transitions. [2025-03-17 14:15:14,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 178 transitions, 948 flow [2025-03-17 14:15:14,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 178 transitions, 927 flow, removed 4 selfloop flow, removed 5 redundant places. [2025-03-17 14:15:14,985 INFO L231 Difference]: Finished difference. Result has 83 places, 74 transitions, 417 flow [2025-03-17 14:15:14,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=417, PETRI_PLACES=83, PETRI_TRANSITIONS=74} [2025-03-17 14:15:14,986 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -3 predicate places. [2025-03-17 14:15:14,986 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 74 transitions, 417 flow [2025-03-17 14:15:14,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.857142857142854) internal successors, (419), 7 states have internal predecessors, (419), 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) [2025-03-17 14:15:14,986 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:14,986 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:14,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-17 14:15:14,986 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:14,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:14,987 INFO L85 PathProgramCache]: Analyzing trace with hash 696248474, now seen corresponding path program 4 times [2025-03-17 14:15:14,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:14,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999334020] [2025-03-17 14:15:14,987 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:15:14,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:15,000 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 69 statements into 2 equivalence classes. [2025-03-17 14:15:15,015 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-17 14:15:15,015 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:15:15,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:15,298 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 14:15:15,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:15,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999334020] [2025-03-17 14:15:15,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999334020] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:15,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:15:15,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:15:15,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798180547] [2025-03-17 14:15:15,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:15,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:15:15,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:15,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:15:15,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:15:15,314 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2025-03-17 14:15:15,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 74 transitions, 417 flow. Second operand has 5 states, 5 states have (on average 63.6) internal successors, (318), 5 states have internal predecessors, (318), 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) [2025-03-17 14:15:15,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:15,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2025-03-17 14:15:15,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:15,680 INFO L124 PetriNetUnfolderBase]: 2966/5781 cut-off events. [2025-03-17 14:15:15,680 INFO L125 PetriNetUnfolderBase]: For 13322/13352 co-relation queries the response was YES. [2025-03-17 14:15:15,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13954 conditions, 5781 events. 2966/5781 cut-off events. For 13322/13352 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 33943 event pairs, 1597 based on Foata normal form. 41/5451 useless extension candidates. Maximal degree in co-relation 11404. Up to 2709 conditions per place. [2025-03-17 14:15:15,698 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 94 selfloop transitions, 3 changer transitions 26/141 dead transitions. [2025-03-17 14:15:15,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 141 transitions, 851 flow [2025-03-17 14:15:15,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:15:15,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 14:15:15,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 385 transitions. [2025-03-17 14:15:15,699 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.506578947368421 [2025-03-17 14:15:15,699 INFO L175 Difference]: Start difference. First operand has 83 places, 74 transitions, 417 flow. Second operand 5 states and 385 transitions. [2025-03-17 14:15:15,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 141 transitions, 851 flow [2025-03-17 14:15:15,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 141 transitions, 796 flow, removed 8 selfloop flow, removed 7 redundant places. [2025-03-17 14:15:15,709 INFO L231 Difference]: Finished difference. Result has 83 places, 71 transitions, 339 flow [2025-03-17 14:15:15,710 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=339, PETRI_PLACES=83, PETRI_TRANSITIONS=71} [2025-03-17 14:15:15,710 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -3 predicate places. [2025-03-17 14:15:15,710 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 71 transitions, 339 flow [2025-03-17 14:15:15,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.6) internal successors, (318), 5 states have internal predecessors, (318), 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) [2025-03-17 14:15:15,710 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:15,710 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:15,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-17 14:15:15,710 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:15,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:15,711 INFO L85 PathProgramCache]: Analyzing trace with hash -89898928, now seen corresponding path program 5 times [2025-03-17 14:15:15,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:15,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439389568] [2025-03-17 14:15:15,711 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:15:15,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:15,723 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-17 14:15:15,732 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-17 14:15:15,733 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:15:15,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:16,473 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:15:16,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:16,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439389568] [2025-03-17 14:15:16,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439389568] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:15:16,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119208666] [2025-03-17 14:15:16,474 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:15:16,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:16,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:15:16,476 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:15:16,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 14:15:16,563 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 69 statements into 2 equivalence classes. [2025-03-17 14:15:16,606 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 69 of 69 statements. [2025-03-17 14:15:16,606 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:15:16,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:16,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-17 14:15:16,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:15:17,430 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-17 14:15:17,430 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:15:17,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119208666] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:17,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:15:17,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 13 [2025-03-17 14:15:17,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955650199] [2025-03-17 14:15:17,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:17,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 14:15:17,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:17,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 14:15:17,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2025-03-17 14:15:17,545 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 152 [2025-03-17 14:15:17,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 71 transitions, 339 flow. Second operand has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 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) [2025-03-17 14:15:17,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:17,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 152 [2025-03-17 14:15:17,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:18,373 INFO L124 PetriNetUnfolderBase]: 2346/4539 cut-off events. [2025-03-17 14:15:18,373 INFO L125 PetriNetUnfolderBase]: For 9706/9733 co-relation queries the response was YES. [2025-03-17 14:15:18,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10909 conditions, 4539 events. 2346/4539 cut-off events. For 9706/9733 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 24897 event pairs, 1338 based on Foata normal form. 39/4273 useless extension candidates. Maximal degree in co-relation 9977. Up to 1759 conditions per place. [2025-03-17 14:15:18,388 INFO L140 encePairwiseOnDemand]: 145/152 looper letters, 78 selfloop transitions, 6 changer transitions 66/168 dead transitions. [2025-03-17 14:15:18,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 168 transitions, 856 flow [2025-03-17 14:15:18,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:15:18,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 14:15:18,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 576 transitions. [2025-03-17 14:15:18,391 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47368421052631576 [2025-03-17 14:15:18,391 INFO L175 Difference]: Start difference. First operand has 83 places, 71 transitions, 339 flow. Second operand 8 states and 576 transitions. [2025-03-17 14:15:18,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 168 transitions, 856 flow [2025-03-17 14:15:18,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 168 transitions, 836 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-03-17 14:15:18,402 INFO L231 Difference]: Finished difference. Result has 83 places, 65 transitions, 274 flow [2025-03-17 14:15:18,402 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=274, PETRI_PLACES=83, PETRI_TRANSITIONS=65} [2025-03-17 14:15:18,402 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -3 predicate places. [2025-03-17 14:15:18,402 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 65 transitions, 274 flow [2025-03-17 14:15:18,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 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) [2025-03-17 14:15:18,403 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 14:15:18,403 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:18,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 14:15:18,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-17 14:15:18,604 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2025-03-17 14:15:18,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:15:18,604 INFO L85 PathProgramCache]: Analyzing trace with hash -327407420, now seen corresponding path program 6 times [2025-03-17 14:15:18,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:15:18,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159481025] [2025-03-17 14:15:18,604 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:15:18,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:15:18,619 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 92 statements into 2 equivalence classes. [2025-03-17 14:15:18,633 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 92 of 92 statements. [2025-03-17 14:15:18,633 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-03-17 14:15:18,633 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:19,163 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-17 14:15:19,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:15:19,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159481025] [2025-03-17 14:15:19,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159481025] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:15:19,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655003099] [2025-03-17 14:15:19,163 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:15:19,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:19,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:15:19,165 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:15:19,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 14:15:19,252 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 92 statements into 2 equivalence classes. [2025-03-17 14:15:19,298 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 92 of 92 statements. [2025-03-17 14:15:19,298 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-03-17 14:15:19,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:15:19,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-17 14:15:19,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:15:19,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-03-17 14:15:19,458 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2025-03-17 14:15:19,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 27 [2025-03-17 14:15:19,482 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2025-03-17 14:15:19,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 29 [2025-03-17 14:15:19,641 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2025-03-17 14:15:19,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 29 [2025-03-17 14:15:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-17 14:15:19,759 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:15:19,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655003099] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:15:19,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:15:19,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 7 [2025-03-17 14:15:19,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609756285] [2025-03-17 14:15:19,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:15:19,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 14:15:19,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:15:19,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 14:15:19,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 14:15:19,857 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2025-03-17 14:15:19,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 65 transitions, 274 flow. Second operand has 8 states, 8 states have (on average 62.5) internal successors, (500), 8 states have internal predecessors, (500), 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) [2025-03-17 14:15:19,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 14:15:19,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2025-03-17 14:15:19,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 14:15:20,472 INFO L124 PetriNetUnfolderBase]: 2023/3762 cut-off events. [2025-03-17 14:15:20,472 INFO L125 PetriNetUnfolderBase]: For 10007/10028 co-relation queries the response was YES. [2025-03-17 14:15:20,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9347 conditions, 3762 events. 2023/3762 cut-off events. For 10007/10028 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 19260 event pairs, 1130 based on Foata normal form. 32/3548 useless extension candidates. Maximal degree in co-relation 9332. Up to 1782 conditions per place. [2025-03-17 14:15:20,479 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 0 selfloop transitions, 0 changer transitions 138/138 dead transitions. [2025-03-17 14:15:20,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 138 transitions, 671 flow [2025-03-17 14:15:20,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:15:20,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-17 14:15:20,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 502 transitions. [2025-03-17 14:15:20,480 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4718045112781955 [2025-03-17 14:15:20,480 INFO L175 Difference]: Start difference. First operand has 83 places, 65 transitions, 274 flow. Second operand 7 states and 502 transitions. [2025-03-17 14:15:20,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 138 transitions, 671 flow [2025-03-17 14:15:20,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 138 transitions, 620 flow, removed 3 selfloop flow, removed 11 redundant places. [2025-03-17 14:15:20,487 INFO L231 Difference]: Finished difference. Result has 73 places, 0 transitions, 0 flow [2025-03-17 14:15:20,487 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=73, PETRI_TRANSITIONS=0} [2025-03-17 14:15:20,488 INFO L279 CegarLoopForPetriNet]: 86 programPoint places, -13 predicate places. [2025-03-17 14:15:20,488 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 0 transitions, 0 flow [2025-03-17 14:15:20,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 62.5) internal successors, (500), 8 states have internal predecessors, (500), 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) [2025-03-17 14:15:20,490 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK (18 of 19 remaining) [2025-03-17 14:15:20,490 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (17 of 19 remaining) [2025-03-17 14:15:20,490 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (16 of 19 remaining) [2025-03-17 14:15:20,490 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (15 of 19 remaining) [2025-03-17 14:15:20,490 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 19 remaining) [2025-03-17 14:15:20,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 19 remaining) [2025-03-17 14:15:20,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (12 of 19 remaining) [2025-03-17 14:15:20,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 19 remaining) [2025-03-17 14:15:20,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONMEMORY_LEAK (10 of 19 remaining) [2025-03-17 14:15:20,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 19 remaining) [2025-03-17 14:15:20,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 19 remaining) [2025-03-17 14:15:20,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONMEMORY_LEAK (7 of 19 remaining) [2025-03-17 14:15:20,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 19 remaining) [2025-03-17 14:15:20,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 19 remaining) [2025-03-17 14:15:20,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 19 remaining) [2025-03-17 14:15:20,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 19 remaining) [2025-03-17 14:15:20,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 19 remaining) [2025-03-17 14:15:20,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONMEMORY_LEAK (1 of 19 remaining) [2025-03-17 14:15:20,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 19 remaining) [2025-03-17 14:15:20,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 14:15:20,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:15:20,692 INFO L422 BasicCegarLoop]: Path program histogram: [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:15:20,696 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-17 14:15:20,696 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 14:15:20,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 02:15:20 BasicIcfg [2025-03-17 14:15:20,699 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 14:15:20,699 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 14:15:20,699 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 14:15:20,699 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 14:15:20,700 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:15:06" (3/4) ... [2025-03-17 14:15:20,701 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 14:15:20,703 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2025-03-17 14:15:20,703 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread_usb [2025-03-17 14:15:20,705 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2025-03-17 14:15:20,706 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2025-03-17 14:15:20,706 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-17 14:15:20,706 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-17 14:15:20,771 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 14:15:20,771 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 14:15:20,771 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 14:15:20,772 INFO L158 Benchmark]: Toolchain (without parser) took 15133.29ms. Allocated memory was 142.6MB in the beginning and 721.4MB in the end (delta: 578.8MB). Free memory was 109.4MB in the beginning and 357.7MB in the end (delta: -248.3MB). Peak memory consumption was 332.1MB. Max. memory is 16.1GB. [2025-03-17 14:15:20,773 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:15:20,773 INFO L158 Benchmark]: CACSL2BoogieTranslator took 547.78ms. Allocated memory is still 142.6MB. Free memory was 109.4MB in the beginning and 54.0MB in the end (delta: 55.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-17 14:15:20,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.31ms. Allocated memory is still 142.6MB. Free memory was 54.0MB in the beginning and 50.5MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 14:15:20,774 INFO L158 Benchmark]: Boogie Preprocessor took 37.75ms. Allocated memory is still 142.6MB. Free memory was 50.5MB in the beginning and 47.6MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 14:15:20,774 INFO L158 Benchmark]: IcfgBuilder took 634.29ms. Allocated memory is still 142.6MB. Free memory was 47.1MB in the beginning and 72.8MB in the end (delta: -25.7MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2025-03-17 14:15:20,774 INFO L158 Benchmark]: TraceAbstraction took 13801.73ms. Allocated memory was 142.6MB in the beginning and 721.4MB in the end (delta: 578.8MB). Free memory was 72.1MB in the beginning and 362.0MB in the end (delta: -289.9MB). Peak memory consumption was 282.9MB. Max. memory is 16.1GB. [2025-03-17 14:15:20,774 INFO L158 Benchmark]: Witness Printer took 72.24ms. Allocated memory is still 721.4MB. Free memory was 362.0MB in the beginning and 357.7MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 14:15:20,776 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 547.78ms. Allocated memory is still 142.6MB. Free memory was 109.4MB in the beginning and 54.0MB in the end (delta: 55.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.31ms. Allocated memory is still 142.6MB. Free memory was 54.0MB in the beginning and 50.5MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.75ms. Allocated memory is still 142.6MB. Free memory was 50.5MB in the beginning and 47.6MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 634.29ms. Allocated memory is still 142.6MB. Free memory was 47.1MB in the beginning and 72.8MB in the end (delta: -25.7MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * TraceAbstraction took 13801.73ms. Allocated memory was 142.6MB in the beginning and 721.4MB in the end (delta: 578.8MB). Free memory was 72.1MB in the beginning and 362.0MB in the end (delta: -289.9MB). Peak memory consumption was 282.9MB. Max. memory is 16.1GB. * Witness Printer took 72.24ms. Allocated memory is still 721.4MB. Free memory was 362.0MB in the beginning and 357.7MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1795]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 133 locations, 180 edges, 19 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: 13.7s, OverallIterations: 19, TraceHistogramMax: 7, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1075 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 935 mSDsluCounter, 83 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4697 IncrementalHoareTripleChecker+Invalid, 4732 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 37 mSDtfsCounter, 4697 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 241 GetRequests, 175 SyntacticMatches, 11 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=417occurred in iteration=16, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 809 NumberOfCodeBlocks, 809 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 788 ConstructedInterpolants, 94 QuantifiedInterpolants, 5291 SizeOfPredicates, 0 NumberOfNonLiveVariables, 861 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 21 InterpolantComputations, 19 PerfectInterpolantSequences, 57/66 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 14:15:20,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE