./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 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/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 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:36:05,176 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:36:05,229 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:36:05,231 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:36:05,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:36:05,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:36:05,251 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:36:05,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:36:05,251 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:36:05,252 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:36:05,252 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:36:05,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:36:05,253 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:36:05,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:36:05,253 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:36:05,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:36:05,254 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:36:05,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:36:05,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:36:05,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:36:05,255 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:36:05,255 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:36:05,256 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:36:05,256 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:36:05,256 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:36:05,256 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:36:05,257 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:36:05,257 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:36:05,257 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:36:05,257 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:36:05,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:36:05,258 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:36:05,258 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:36:05,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:36:05,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:36:05,259 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:36:05,259 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:36:05,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:36:05,260 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:36:05,260 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:36:05,260 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:36:05,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:36:05,261 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2024-11-19 09:36:05,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:36:05,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:36:05,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:36:05,468 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:36:05,468 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:36:05,469 INFO L431 ainManager$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 [2024-11-19 09:36:06,891 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:36:07,131 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:36:07,131 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2024-11-19 09:36:07,148 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19450ca69/d83bbf9050d64b37b48fd33401cab628/FLAGf87afc324 [2024-11-19 09:36:07,161 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19450ca69/d83bbf9050d64b37b48fd33401cab628 [2024-11-19 09:36:07,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:36:07,166 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:36:07,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:36:07,168 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:36:07,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:36:07,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:36:07" (1/1) ... [2024-11-19 09:36:07,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@386b6c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:07, skipping insertion in model container [2024-11-19 09:36:07,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:36:07" (1/1) ... [2024-11-19 09:36:07,222 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:36:07,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:36:07,877 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:36:07,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:36:08,119 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:36:08,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:08 WrapperNode [2024-11-19 09:36:08,120 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:36:08,120 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:36:08,121 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:36:08,121 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:36:08,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:08" (1/1) ... [2024-11-19 09:36:08,160 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:08" (1/1) ... [2024-11-19 09:36:08,191 INFO L138 Inliner]: procedures = 487, calls = 37, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 215 [2024-11-19 09:36:08,194 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:36:08,196 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:36:08,196 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:36:08,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:36:08,207 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:08" (1/1) ... [2024-11-19 09:36:08,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:08" (1/1) ... [2024-11-19 09:36:08,213 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:08" (1/1) ... [2024-11-19 09:36:08,240 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]. [2024-11-19 09:36:08,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:08" (1/1) ... [2024-11-19 09:36:08,241 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:08" (1/1) ... [2024-11-19 09:36:08,249 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:08" (1/1) ... [2024-11-19 09:36:08,253 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:08" (1/1) ... [2024-11-19 09:36:08,256 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:08" (1/1) ... [2024-11-19 09:36:08,258 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:08" (1/1) ... [2024-11-19 09:36:08,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:36:08,263 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:36:08,263 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:36:08,263 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:36:08,264 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:08" (1/1) ... [2024-11-19 09:36:08,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:36:08,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:36:08,303 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 09:36:08,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 09:36:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2024-11-19 09:36:08,343 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2024-11-19 09:36:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 09:36:08,343 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2024-11-19 09:36:08,344 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2024-11-19 09:36:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 09:36:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:36:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 09:36:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 09:36:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 09:36:08,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 09:36:08,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:36:08,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:36:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 09:36:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 09:36:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:36:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 09:36:08,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 09:36:08,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 09:36:08,348 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:36:08,611 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:36:08,612 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:36:08,816 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:36:08,816 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:36:08,937 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:36:08,937 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 09:36:08,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:36:08 BoogieIcfgContainer [2024-11-19 09:36:08,937 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:36:08,939 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:36:08,940 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:36:08,942 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:36:08,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:36:07" (1/3) ... [2024-11-19 09:36:08,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7e85ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:36:08, skipping insertion in model container [2024-11-19 09:36:08,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:36:08" (2/3) ... [2024-11-19 09:36:08,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7e85ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:36:08, skipping insertion in model container [2024-11-19 09:36:08,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:36:08" (3/3) ... [2024-11-19 09:36:08,945 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2024-11-19 09:36:08,960 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:36:08,961 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-11-19 09:36:08,961 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:36:09,019 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-11-19 09:36:09,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 152 transitions, 331 flow [2024-11-19 09:36:09,097 INFO L124 PetriNetUnfolderBase]: 36/156 cut-off events. [2024-11-19 09:36:09,097 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 09:36:09,102 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 505 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. [2024-11-19 09:36:09,102 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 152 transitions, 331 flow [2024-11-19 09:36:09,105 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 106 transitions, 228 flow [2024-11-19 09:36:09,113 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:36:09,118 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;@648a6b9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:36:09,119 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-19 09:36:09,121 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:36:09,121 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2024-11-19 09:36:09,121 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 09:36:09,122 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:36:09,122 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-19 09:36:09,122 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-19 09:36:09,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:36:09,126 INFO L85 PathProgramCache]: Analyzing trace with hash 18974977, now seen corresponding path program 1 times [2024-11-19 09:36:09,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:36:09,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41491261] [2024-11-19 09:36:09,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:36:09,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:36:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:36:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:36:09,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:36:09,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41491261] [2024-11-19 09:36:09,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41491261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:36:09,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:36:09,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:36:09,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289155474] [2024-11-19 09:36:09,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:36:09,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:36:09,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:36:09,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:36:09,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:36:09,607 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 152 [2024-11-19 09:36:09,610 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) [2024-11-19 09:36:09,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:36:09,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 152 [2024-11-19 09:36:09,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:36:10,110 INFO L124 PetriNetUnfolderBase]: 2021/3758 cut-off events. [2024-11-19 09:36:10,112 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-19 09:36:10,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6832 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 25211 event pairs, 1646 based on Foata normal form. 321/3595 useless extension candidates. Maximal degree in co-relation 6490. Up to 2977 conditions per place. [2024-11-19 09:36:10,181 INFO L140 encePairwiseOnDemand]: 135/152 looper letters, 54 selfloop transitions, 6 changer transitions 0/88 dead transitions. [2024-11-19 09:36:10,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 88 transitions, 312 flow [2024-11-19 09:36:10,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:36:10,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:36:10,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 233 transitions. [2024-11-19 09:36:10,198 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5109649122807017 [2024-11-19 09:36:10,199 INFO L175 Difference]: Start difference. First operand has 86 places, 106 transitions, 228 flow. Second operand 3 states and 233 transitions. [2024-11-19 09:36:10,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 88 transitions, 312 flow [2024-11-19 09:36:10,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 88 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:36:10,206 INFO L231 Difference]: Finished difference. Result has 71 places, 77 transitions, 178 flow [2024-11-19 09:36:10,208 INFO L260 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} [2024-11-19 09:36:10,212 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -15 predicate places. [2024-11-19 09:36:10,212 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 77 transitions, 178 flow [2024-11-19 09:36:10,212 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) [2024-11-19 09:36:10,213 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:36:10,213 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:36:10,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:36:10,213 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-19 09:36:10,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:36:10,214 INFO L85 PathProgramCache]: Analyzing trace with hash -731045201, now seen corresponding path program 1 times [2024-11-19 09:36:10,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:36:10,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557939044] [2024-11-19 09:36:10,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:36:10,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:36:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:36:10,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:36:10,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:36:10,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557939044] [2024-11-19 09:36:10,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557939044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:36:10,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:36:10,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 09:36:10,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116568869] [2024-11-19 09:36:10,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:36:10,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:36:10,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:36:10,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:36:10,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:36:10,326 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 152 [2024-11-19 09:36:10,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 77 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:36:10,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:36:10,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 152 [2024-11-19 09:36:10,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:36:10,701 INFO L124 PetriNetUnfolderBase]: 1295/2395 cut-off events. [2024-11-19 09:36:10,701 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-19 09:36:10,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4487 conditions, 2395 events. 1295/2395 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 14646 event pairs, 383 based on Foata normal form. 0/2223 useless extension candidates. Maximal degree in co-relation 4244. Up to 1159 conditions per place. [2024-11-19 09:36:10,712 INFO L140 encePairwiseOnDemand]: 148/152 looper letters, 108 selfloop transitions, 3 changer transitions 2/144 dead transitions. [2024-11-19 09:36:10,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 144 transitions, 556 flow [2024-11-19 09:36:10,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:36:10,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:36:10,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 338 transitions. [2024-11-19 09:36:10,715 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.555921052631579 [2024-11-19 09:36:10,715 INFO L175 Difference]: Start difference. First operand has 71 places, 77 transitions, 178 flow. Second operand 4 states and 338 transitions. [2024-11-19 09:36:10,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 144 transitions, 556 flow [2024-11-19 09:36:10,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 144 transitions, 544 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:36:10,723 INFO L231 Difference]: Finished difference. Result has 74 places, 78 transitions, 183 flow [2024-11-19 09:36:10,724 INFO L260 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=183, PETRI_PLACES=74, PETRI_TRANSITIONS=78} [2024-11-19 09:36:10,725 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -12 predicate places. [2024-11-19 09:36:10,725 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 78 transitions, 183 flow [2024-11-19 09:36:10,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:36:10,726 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:36:10,726 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:36:10,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 09:36:10,727 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-19 09:36:10,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:36:10,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1901598, now seen corresponding path program 1 times [2024-11-19 09:36:10,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:36:10,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224738484] [2024-11-19 09:36:10,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:36:10,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:36:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:36:10,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:36:10,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:36:10,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224738484] [2024-11-19 09:36:10,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224738484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:36:10,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:36:10,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 09:36:10,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492467458] [2024-11-19 09:36:10,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:36:10,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:36:10,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:36:10,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:36:10,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:36:10,781 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2024-11-19 09:36:10,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 78 transitions, 183 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) [2024-11-19 09:36:10,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:36:10,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2024-11-19 09:36:10,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:36:11,191 INFO L124 PetriNetUnfolderBase]: 2329/4170 cut-off events. [2024-11-19 09:36:11,192 INFO L125 PetriNetUnfolderBase]: For 2902/2902 co-relation queries the response was YES. [2024-11-19 09:36:11,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9293 conditions, 4170 events. 2329/4170 cut-off events. For 2902/2902 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 23815 event pairs, 1035 based on Foata normal form. 0/3834 useless extension candidates. Maximal degree in co-relation 4080. Up to 2197 conditions per place. [2024-11-19 09:36:11,219 INFO L140 encePairwiseOnDemand]: 147/152 looper letters, 70 selfloop transitions, 4 changer transitions 6/109 dead transitions. [2024-11-19 09:36:11,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 109 transitions, 417 flow [2024-11-19 09:36:11,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:36:11,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:36:11,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2024-11-19 09:36:11,221 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5350877192982456 [2024-11-19 09:36:11,221 INFO L175 Difference]: Start difference. First operand has 74 places, 78 transitions, 183 flow. Second operand 3 states and 244 transitions. [2024-11-19 09:36:11,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 109 transitions, 417 flow [2024-11-19 09:36:11,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 109 transitions, 415 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:36:11,225 INFO L231 Difference]: Finished difference. Result has 76 places, 75 transitions, 194 flow [2024-11-19 09:36:11,225 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=76, PETRI_TRANSITIONS=75} [2024-11-19 09:36:11,226 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -10 predicate places. [2024-11-19 09:36:11,226 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 75 transitions, 194 flow [2024-11-19 09:36:11,226 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) [2024-11-19 09:36:11,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:36:11,227 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:36:11,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 09:36:11,227 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbErr3ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-19 09:36:11,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:36:11,227 INFO L85 PathProgramCache]: Analyzing trace with hash 509677974, now seen corresponding path program 1 times [2024-11-19 09:36:11,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:36:11,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068473345] [2024-11-19 09:36:11,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:36:11,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:36:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:36:11,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:36:11,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:36:11,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068473345] [2024-11-19 09:36:11,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068473345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:36:11,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:36:11,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:36:11,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583065278] [2024-11-19 09:36:11,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:36:11,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:36:11,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:36:11,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:36:11,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:36:11,318 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 152 [2024-11-19 09:36:11,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 75 transitions, 194 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) [2024-11-19 09:36:11,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:36:11,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 152 [2024-11-19 09:36:11,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:36:11,664 INFO L124 PetriNetUnfolderBase]: 2336/4118 cut-off events. [2024-11-19 09:36:11,664 INFO L125 PetriNetUnfolderBase]: For 3366/3368 co-relation queries the response was YES. [2024-11-19 09:36:11,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9856 conditions, 4118 events. 2336/4118 cut-off events. For 3366/3368 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 22629 event pairs, 1456 based on Foata normal form. 0/3787 useless extension candidates. Maximal degree in co-relation 4110. Up to 2919 conditions per place. [2024-11-19 09:36:11,685 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 56 selfloop transitions, 4 changer transitions 0/84 dead transitions. [2024-11-19 09:36:11,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 84 transitions, 351 flow [2024-11-19 09:36:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:36:11,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:36:11,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 221 transitions. [2024-11-19 09:36:11,686 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48464912280701755 [2024-11-19 09:36:11,687 INFO L175 Difference]: Start difference. First operand has 76 places, 75 transitions, 194 flow. Second operand 3 states and 221 transitions. [2024-11-19 09:36:11,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 84 transitions, 351 flow [2024-11-19 09:36:11,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 84 transitions, 316 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-19 09:36:11,690 INFO L231 Difference]: Finished difference. Result has 65 places, 69 transitions, 170 flow [2024-11-19 09:36:11,690 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=162, 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=170, PETRI_PLACES=65, PETRI_TRANSITIONS=69} [2024-11-19 09:36:11,691 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -21 predicate places. [2024-11-19 09:36:11,691 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 69 transitions, 170 flow [2024-11-19 09:36:11,691 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) [2024-11-19 09:36:11,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:36:11,692 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:36:11,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 09:36:11,692 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-19 09:36:11,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:36:11,692 INFO L85 PathProgramCache]: Analyzing trace with hash 432892749, now seen corresponding path program 1 times [2024-11-19 09:36:11,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:36:11,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850839800] [2024-11-19 09:36:11,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:36:11,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:36:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:36:11,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:36:11,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:36:11,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850839800] [2024-11-19 09:36:11,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850839800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:36:11,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:36:11,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:36:11,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902708178] [2024-11-19 09:36:11,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:36:11,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:36:11,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:36:11,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:36:11,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:36:11,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2024-11-19 09:36:11,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 69 transitions, 170 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) [2024-11-19 09:36:11,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:36:11,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2024-11-19 09:36:11,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:36:12,046 INFO L124 PetriNetUnfolderBase]: 2363/4298 cut-off events. [2024-11-19 09:36:12,047 INFO L125 PetriNetUnfolderBase]: For 606/612 co-relation queries the response was YES. [2024-11-19 09:36:12,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8504 conditions, 4298 events. 2363/4298 cut-off events. For 606/612 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 25290 event pairs, 1441 based on Foata normal form. 6/3941 useless extension candidates. Maximal degree in co-relation 3428. Up to 2856 conditions per place. [2024-11-19 09:36:12,065 INFO L140 encePairwiseOnDemand]: 147/152 looper letters, 71 selfloop transitions, 5 changer transitions 0/101 dead transitions. [2024-11-19 09:36:12,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 101 transitions, 406 flow [2024-11-19 09:36:12,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:36:12,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:36:12,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2024-11-19 09:36:12,067 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2024-11-19 09:36:12,067 INFO L175 Difference]: Start difference. First operand has 65 places, 69 transitions, 170 flow. Second operand 3 states and 240 transitions. [2024-11-19 09:36:12,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 101 transitions, 406 flow [2024-11-19 09:36:12,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 101 transitions, 390 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:36:12,071 INFO L231 Difference]: Finished difference. Result has 67 places, 71 transitions, 192 flow [2024-11-19 09:36:12,072 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=162, 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=192, PETRI_PLACES=67, PETRI_TRANSITIONS=71} [2024-11-19 09:36:12,074 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -19 predicate places. [2024-11-19 09:36:12,074 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 71 transitions, 192 flow [2024-11-19 09:36:12,074 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) [2024-11-19 09:36:12,074 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:36:12,075 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:36:12,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 09:36:12,076 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-19 09:36:12,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:36:12,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1138683084, now seen corresponding path program 1 times [2024-11-19 09:36:12,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:36:12,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192320780] [2024-11-19 09:36:12,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:36:12,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:36:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:36:12,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:36:12,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:36:12,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192320780] [2024-11-19 09:36:12,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192320780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:36:12,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:36:12,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:36:12,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578633101] [2024-11-19 09:36:12,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:36:12,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:36:12,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:36:12,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:36:12,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:36:12,182 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2024-11-19 09:36:12,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 71 transitions, 192 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) [2024-11-19 09:36:12,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:36:12,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2024-11-19 09:36:12,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:36:12,483 INFO L124 PetriNetUnfolderBase]: 2350/4259 cut-off events. [2024-11-19 09:36:12,483 INFO L125 PetriNetUnfolderBase]: For 1944/1954 co-relation queries the response was YES. [2024-11-19 09:36:12,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8911 conditions, 4259 events. 2350/4259 cut-off events. For 1944/1954 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 24819 event pairs, 1430 based on Foata normal form. 32/3942 useless extension candidates. Maximal degree in co-relation 5556. Up to 2490 conditions per place. [2024-11-19 09:36:12,504 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 72 selfloop transitions, 3 changer transitions 0/100 dead transitions. [2024-11-19 09:36:12,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 100 transitions, 413 flow [2024-11-19 09:36:12,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:36:12,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:36:12,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 237 transitions. [2024-11-19 09:36:12,505 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5197368421052632 [2024-11-19 09:36:12,506 INFO L175 Difference]: Start difference. First operand has 67 places, 71 transitions, 192 flow. Second operand 3 states and 237 transitions. [2024-11-19 09:36:12,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 100 transitions, 413 flow [2024-11-19 09:36:12,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 100 transitions, 403 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:36:12,510 INFO L231 Difference]: Finished difference. Result has 66 places, 70 transitions, 186 flow [2024-11-19 09:36:12,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=180, 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=186, PETRI_PLACES=66, PETRI_TRANSITIONS=70} [2024-11-19 09:36:12,512 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -20 predicate places. [2024-11-19 09:36:12,512 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 70 transitions, 186 flow [2024-11-19 09:36:12,512 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) [2024-11-19 09:36:12,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:36:12,512 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:36:12,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 09:36:12,513 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-19 09:36:12,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:36:12,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1625422643, now seen corresponding path program 1 times [2024-11-19 09:36:12,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:36:12,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862651545] [2024-11-19 09:36:12,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:36:12,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:36:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:36:12,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:36:12,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:36:12,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862651545] [2024-11-19 09:36:12,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862651545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:36:12,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:36:12,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:36:12,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197025901] [2024-11-19 09:36:12,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:36:12,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:36:12,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:36:12,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:36:12,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:36:12,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2024-11-19 09:36:12,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 70 transitions, 186 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) [2024-11-19 09:36:12,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:36:12,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2024-11-19 09:36:12,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:36:12,821 INFO L124 PetriNetUnfolderBase]: 2349/4021 cut-off events. [2024-11-19 09:36:12,822 INFO L125 PetriNetUnfolderBase]: For 1943/1947 co-relation queries the response was YES. [2024-11-19 09:36:12,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8634 conditions, 4021 events. 2349/4021 cut-off events. For 1943/1947 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 21329 event pairs, 1390 based on Foata normal form. 0/3653 useless extension candidates. Maximal degree in co-relation 5331. Up to 2929 conditions per place. [2024-11-19 09:36:12,837 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 64 selfloop transitions, 2 changer transitions 2/90 dead transitions. [2024-11-19 09:36:12,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 90 transitions, 389 flow [2024-11-19 09:36:12,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:36:12,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:36:12,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 227 transitions. [2024-11-19 09:36:12,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49780701754385964 [2024-11-19 09:36:12,839 INFO L175 Difference]: Start difference. First operand has 66 places, 70 transitions, 186 flow. Second operand 3 states and 227 transitions. [2024-11-19 09:36:12,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 90 transitions, 389 flow [2024-11-19 09:36:12,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 90 transitions, 377 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:36:12,842 INFO L231 Difference]: Finished difference. Result has 63 places, 66 transitions, 174 flow [2024-11-19 09:36:12,842 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=174, 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=174, PETRI_PLACES=63, PETRI_TRANSITIONS=66} [2024-11-19 09:36:12,843 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -23 predicate places. [2024-11-19 09:36:12,843 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 66 transitions, 174 flow [2024-11-19 09:36:12,844 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) [2024-11-19 09:36:12,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:36:12,844 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:36:12,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 09:36:12,844 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbThread1of1ForFork1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-19 09:36:12,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:36:12,845 INFO L85 PathProgramCache]: Analyzing trace with hash 406975608, now seen corresponding path program 1 times [2024-11-19 09:36:12,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:36:12,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678071060] [2024-11-19 09:36:12,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:36:12,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:36:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:36:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:36:12,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:36:12,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678071060] [2024-11-19 09:36:12,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678071060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:36:12,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:36:12,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:36:12,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882645458] [2024-11-19 09:36:12,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:36:12,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:36:12,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:36:12,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:36:12,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:36:12,917 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 152 [2024-11-19 09:36:12,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 66 transitions, 174 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) [2024-11-19 09:36:12,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:36:12,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 152 [2024-11-19 09:36:12,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:36:13,209 INFO L124 PetriNetUnfolderBase]: 2070/3671 cut-off events. [2024-11-19 09:36:13,210 INFO L125 PetriNetUnfolderBase]: For 1018/1021 co-relation queries the response was YES. [2024-11-19 09:36:13,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7421 conditions, 3671 events. 2070/3671 cut-off events. For 1018/1021 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 20122 event pairs, 660 based on Foata normal form. 288/3711 useless extension candidates. Maximal degree in co-relation 5001. Up to 1525 conditions per place. [2024-11-19 09:36:13,227 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 60 selfloop transitions, 3 changer transitions 2/85 dead transitions. [2024-11-19 09:36:13,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 85 transitions, 357 flow [2024-11-19 09:36:13,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:36:13,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:36:13,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2024-11-19 09:36:13,229 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4780701754385965 [2024-11-19 09:36:13,229 INFO L175 Difference]: Start difference. First operand has 63 places, 66 transitions, 174 flow. Second operand 3 states and 218 transitions. [2024-11-19 09:36:13,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 85 transitions, 357 flow [2024-11-19 09:36:13,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 85 transitions, 343 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 09:36:13,236 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 183 flow [2024-11-19 09:36:13,236 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=161, 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=183, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2024-11-19 09:36:13,238 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -25 predicate places. [2024-11-19 09:36:13,238 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 183 flow [2024-11-19 09:36:13,238 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) [2024-11-19 09:36:13,239 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:36:13,239 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:36:13,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 09:36:13,239 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-19 09:36:13,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:36:13,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1418178821, now seen corresponding path program 1 times [2024-11-19 09:36:13,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:36:13,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955468939] [2024-11-19 09:36:13,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:36:13,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:36:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:36:13,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:36:13,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:36:13,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955468939] [2024-11-19 09:36:13,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955468939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:36:13,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:36:13,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:36:13,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598636999] [2024-11-19 09:36:13,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:36:13,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:36:13,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:36:13,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:36:13,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:36:13,413 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2024-11-19 09:36:13,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 183 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) [2024-11-19 09:36:13,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:36:13,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2024-11-19 09:36:13,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:36:13,719 INFO L124 PetriNetUnfolderBase]: 2173/3984 cut-off events. [2024-11-19 09:36:13,719 INFO L125 PetriNetUnfolderBase]: For 1259/1265 co-relation queries the response was YES. [2024-11-19 09:36:13,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8228 conditions, 3984 events. 2173/3984 cut-off events. For 1259/1265 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 22688 event pairs, 1103 based on Foata normal form. 15/3761 useless extension candidates. Maximal degree in co-relation 2302. Up to 1887 conditions per place. [2024-11-19 09:36:13,729 INFO L140 encePairwiseOnDemand]: 147/152 looper letters, 85 selfloop transitions, 4 changer transitions 8/118 dead transitions. [2024-11-19 09:36:13,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 118 transitions, 506 flow [2024-11-19 09:36:13,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:36:13,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:36:13,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 316 transitions. [2024-11-19 09:36:13,730 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5197368421052632 [2024-11-19 09:36:13,730 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 183 flow. Second operand 4 states and 316 transitions. [2024-11-19 09:36:13,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 118 transitions, 506 flow [2024-11-19 09:36:13,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 118 transitions, 496 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:36:13,733 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 202 flow [2024-11-19 09:36:13,733 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=177, 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=202, PETRI_PLACES=64, PETRI_TRANSITIONS=66} [2024-11-19 09:36:13,733 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -22 predicate places. [2024-11-19 09:36:13,733 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 202 flow [2024-11-19 09:36:13,734 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) [2024-11-19 09:36:13,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:36:13,734 INFO L204 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] [2024-11-19 09:36:13,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 09:36:13,734 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-19 09:36:13,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:36:13,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1187478350, now seen corresponding path program 1 times [2024-11-19 09:36:13,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:36:13,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738014874] [2024-11-19 09:36:13,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:36:13,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:36:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:36:13,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 09:36:13,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:36:13,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738014874] [2024-11-19 09:36:13,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738014874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:36:13,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:36:13,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:36:13,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160319916] [2024-11-19 09:36:13,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:36:13,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:36:13,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:36:13,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:36:13,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:36:13,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2024-11-19 09:36:13,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 66 transitions, 202 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) [2024-11-19 09:36:13,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:36:13,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2024-11-19 09:36:13,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:36:14,034 INFO L124 PetriNetUnfolderBase]: 1938/3588 cut-off events. [2024-11-19 09:36:14,035 INFO L125 PetriNetUnfolderBase]: For 2212/2213 co-relation queries the response was YES. [2024-11-19 09:36:14,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7910 conditions, 3588 events. 1938/3588 cut-off events. For 2212/2213 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 20140 event pairs, 1477 based on Foata normal form. 5/3361 useless extension candidates. Maximal degree in co-relation 5422. Up to 2816 conditions per place. [2024-11-19 09:36:14,048 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 52 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2024-11-19 09:36:14,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 78 transitions, 344 flow [2024-11-19 09:36:14,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:36:14,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:36:14,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2024-11-19 09:36:14,049 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4780701754385965 [2024-11-19 09:36:14,049 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 202 flow. Second operand 3 states and 218 transitions. [2024-11-19 09:36:14,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 78 transitions, 344 flow [2024-11-19 09:36:14,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 78 transitions, 331 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-19 09:36:14,052 INFO L231 Difference]: Finished difference. Result has 62 places, 65 transitions, 197 flow [2024-11-19 09:36:14,053 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=187, 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=197, PETRI_PLACES=62, PETRI_TRANSITIONS=65} [2024-11-19 09:36:14,053 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -24 predicate places. [2024-11-19 09:36:14,053 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 65 transitions, 197 flow [2024-11-19 09:36:14,053 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) [2024-11-19 09:36:14,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:36:14,054 INFO L204 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] [2024-11-19 09:36:14,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 09:36:14,054 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread_usbErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-19 09:36:14,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:36:14,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1187478349, now seen corresponding path program 1 times [2024-11-19 09:36:14,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:36:14,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887735377] [2024-11-19 09:36:14,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:36:14,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:36:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:36:14,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 09:36:14,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:36:14,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887735377] [2024-11-19 09:36:14,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887735377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:36:14,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:36:14,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:36:14,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797979392] [2024-11-19 09:36:14,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:36:14,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:36:14,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:36:14,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:36:14,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:36:14,112 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2024-11-19 09:36:14,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 65 transitions, 197 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) [2024-11-19 09:36:14,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:36:14,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2024-11-19 09:36:14,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:36:14,339 INFO L124 PetriNetUnfolderBase]: 1938/3583 cut-off events. [2024-11-19 09:36:14,339 INFO L125 PetriNetUnfolderBase]: For 1979/1980 co-relation queries the response was YES. [2024-11-19 09:36:14,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7793 conditions, 3583 events. 1938/3583 cut-off events. For 1979/1980 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 20064 event pairs, 1477 based on Foata normal form. 5/3356 useless extension candidates. Maximal degree in co-relation 5388. Up to 2816 conditions per place. [2024-11-19 09:36:14,347 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 52 selfloop transitions, 5 changer transitions 0/77 dead transitions. [2024-11-19 09:36:14,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 77 transitions, 339 flow [2024-11-19 09:36:14,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:36:14,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:36:14,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2024-11-19 09:36:14,348 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4780701754385965 [2024-11-19 09:36:14,349 INFO L175 Difference]: Start difference. First operand has 62 places, 65 transitions, 197 flow. Second operand 3 states and 218 transitions. [2024-11-19 09:36:14,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 77 transitions, 339 flow [2024-11-19 09:36:14,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 77 transitions, 329 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:36:14,351 INFO L231 Difference]: Finished difference. Result has 61 places, 64 transitions, 195 flow [2024-11-19 09:36:14,351 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=185, 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=195, PETRI_PLACES=61, PETRI_TRANSITIONS=64} [2024-11-19 09:36:14,351 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -25 predicate places. [2024-11-19 09:36:14,352 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 64 transitions, 195 flow [2024-11-19 09:36:14,352 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) [2024-11-19 09:36:14,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:36:14,352 INFO L204 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] [2024-11-19 09:36:14,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 09:36:14,352 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-19 09:36:14,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:36:14,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1082563405, now seen corresponding path program 1 times [2024-11-19 09:36:14,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:36:14,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759763065] [2024-11-19 09:36:14,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:36:14,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:36:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:36:14,565 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 09:36:14,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:36:14,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759763065] [2024-11-19 09:36:14,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759763065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:36:14,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:36:14,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:36:14,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823133733] [2024-11-19 09:36:14,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:36:14,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:36:14,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:36:14,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:36:14,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:36:14,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 152 [2024-11-19 09:36:14,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 64 transitions, 195 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) [2024-11-19 09:36:14,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:36:14,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 152 [2024-11-19 09:36:14,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:36:14,910 INFO L124 PetriNetUnfolderBase]: 2098/3919 cut-off events. [2024-11-19 09:36:14,910 INFO L125 PetriNetUnfolderBase]: For 2128/2140 co-relation queries the response was YES. [2024-11-19 09:36:14,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8539 conditions, 3919 events. 2098/3919 cut-off events. For 2128/2140 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 23121 event pairs, 1201 based on Foata normal form. 12/3669 useless extension candidates. Maximal degree in co-relation 6102. Up to 2202 conditions per place. [2024-11-19 09:36:14,924 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 80 selfloop transitions, 9 changer transitions 0/108 dead transitions. [2024-11-19 09:36:14,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 108 transitions, 493 flow [2024-11-19 09:36:14,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:36:14,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:36:14,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 301 transitions. [2024-11-19 09:36:14,926 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49506578947368424 [2024-11-19 09:36:14,926 INFO L175 Difference]: Start difference. First operand has 61 places, 64 transitions, 195 flow. Second operand 4 states and 301 transitions. [2024-11-19 09:36:14,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 108 transitions, 493 flow [2024-11-19 09:36:14,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 108 transitions, 477 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:36:14,929 INFO L231 Difference]: Finished difference. Result has 65 places, 68 transitions, 253 flow [2024-11-19 09:36:14,930 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=185, 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=253, PETRI_PLACES=65, PETRI_TRANSITIONS=68} [2024-11-19 09:36:14,930 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -21 predicate places. [2024-11-19 09:36:14,930 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 68 transitions, 253 flow [2024-11-19 09:36:14,930 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) [2024-11-19 09:36:14,930 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:36:14,931 INFO L204 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] [2024-11-19 09:36:14,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 09:36:14,931 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-19 09:36:14,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:36:14,931 INFO L85 PathProgramCache]: Analyzing trace with hash 319736429, now seen corresponding path program 2 times [2024-11-19 09:36:14,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:36:14,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922456630] [2024-11-19 09:36:14,932 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:36:14,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:36:14,957 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:36:14,958 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:36:15,099 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 09:36:15,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:36:15,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922456630] [2024-11-19 09:36:15,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922456630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:36:15,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:36:15,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:36:15,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501731350] [2024-11-19 09:36:15,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:36:15,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:36:15,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:36:15,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:36:15,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:36:15,134 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 152 [2024-11-19 09:36:15,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 68 transitions, 253 flow. Second operand has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:36:15,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:36:15,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 152 [2024-11-19 09:36:15,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:36:15,535 INFO L124 PetriNetUnfolderBase]: 2089/3893 cut-off events. [2024-11-19 09:36:15,536 INFO L125 PetriNetUnfolderBase]: For 4196/4214 co-relation queries the response was YES. [2024-11-19 09:36:15,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9041 conditions, 3893 events. 2089/3893 cut-off events. For 4196/4214 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 22774 event pairs, 1129 based on Foata normal form. 30/3678 useless extension candidates. Maximal degree in co-relation 6299. Up to 1784 conditions per place. [2024-11-19 09:36:15,551 INFO L140 encePairwiseOnDemand]: 144/152 looper letters, 91 selfloop transitions, 19 changer transitions 0/129 dead transitions. [2024-11-19 09:36:15,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 129 transitions, 620 flow [2024-11-19 09:36:15,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 09:36:15,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 09:36:15,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 480 transitions. [2024-11-19 09:36:15,553 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45112781954887216 [2024-11-19 09:36:15,553 INFO L175 Difference]: Start difference. First operand has 65 places, 68 transitions, 253 flow. Second operand 7 states and 480 transitions. [2024-11-19 09:36:15,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 129 transitions, 620 flow [2024-11-19 09:36:15,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 129 transitions, 614 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-19 09:36:15,559 INFO L231 Difference]: Finished difference. Result has 70 places, 70 transitions, 307 flow [2024-11-19 09:36:15,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=307, PETRI_PLACES=70, PETRI_TRANSITIONS=70} [2024-11-19 09:36:15,560 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -16 predicate places. [2024-11-19 09:36:15,560 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 70 transitions, 307 flow [2024-11-19 09:36:15,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:36:15,561 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:36:15,561 INFO L204 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] [2024-11-19 09:36:15,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 09:36:15,561 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-19 09:36:15,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:36:15,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1726244957, now seen corresponding path program 1 times [2024-11-19 09:36:15,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:36:15,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56878518] [2024-11-19 09:36:15,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:36:15,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:36:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:36:15,788 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 09:36:15,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:36:15,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56878518] [2024-11-19 09:36:15,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56878518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:36:15,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:36:15,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:36:15,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324601752] [2024-11-19 09:36:15,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:36:15,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:36:15,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:36:15,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:36:15,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:36:15,811 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2024-11-19 09:36:15,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 70 transitions, 307 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) [2024-11-19 09:36:15,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:36:15,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2024-11-19 09:36:15,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:36:16,242 INFO L124 PetriNetUnfolderBase]: 2187/4090 cut-off events. [2024-11-19 09:36:16,242 INFO L125 PetriNetUnfolderBase]: For 5895/5919 co-relation queries the response was YES. [2024-11-19 09:36:16,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9766 conditions, 4090 events. 2187/4090 cut-off events. For 5895/5919 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 24186 event pairs, 1199 based on Foata normal form. 35/3877 useless extension candidates. Maximal degree in co-relation 6875. Up to 1784 conditions per place. [2024-11-19 09:36:16,258 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 101 selfloop transitions, 9 changer transitions 8/136 dead transitions. [2024-11-19 09:36:16,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 136 transitions, 708 flow [2024-11-19 09:36:16,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:36:16,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:36:16,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 386 transitions. [2024-11-19 09:36:16,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5078947368421053 [2024-11-19 09:36:16,259 INFO L175 Difference]: Start difference. First operand has 70 places, 70 transitions, 307 flow. Second operand 5 states and 386 transitions. [2024-11-19 09:36:16,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 136 transitions, 708 flow [2024-11-19 09:36:16,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 136 transitions, 691 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-11-19 09:36:16,268 INFO L231 Difference]: Finished difference. Result has 74 places, 70 transitions, 332 flow [2024-11-19 09:36:16,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=291, 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=332, PETRI_PLACES=74, PETRI_TRANSITIONS=70} [2024-11-19 09:36:16,268 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -12 predicate places. [2024-11-19 09:36:16,268 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 70 transitions, 332 flow [2024-11-19 09:36:16,269 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) [2024-11-19 09:36:16,269 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:36:16,269 INFO L204 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] [2024-11-19 09:36:16,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 09:36:16,269 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-19 09:36:16,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:36:16,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1424396863, now seen corresponding path program 2 times [2024-11-19 09:36:16,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:36:16,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937797968] [2024-11-19 09:36:16,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:36:16,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:36:16,298 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:36:16,298 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:36:16,582 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 09:36:16,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:36:16,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937797968] [2024-11-19 09:36:16,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937797968] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:36:16,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156102625] [2024-11-19 09:36:16,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:36:16,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:36:16,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:36:16,585 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) [2024-11-19 09:36:16,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 09:36:16,706 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:36:16,706 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:36:16,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 09:36:16,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:36:16,848 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-19 09:36:16,849 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 [2024-11-19 09:36:16,900 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-19 09:36:16,900 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 [2024-11-19 09:36:17,182 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 09:36:17,182 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:36:17,690 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 09:36:17,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156102625] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:36:17,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:36:17,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 12 [2024-11-19 09:36:17,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664362349] [2024-11-19 09:36:17,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:36:17,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 09:36:17,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:36:17,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 09:36:17,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-19 09:36:17,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 152 [2024-11-19 09:36:17,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 70 transitions, 332 flow. Second operand has 14 states, 14 states have (on average 59.214285714285715) internal successors, (829), 14 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:36:17,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:36:17,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 152 [2024-11-19 09:36:17,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:36:18,813 INFO L124 PetriNetUnfolderBase]: 2488/4723 cut-off events. [2024-11-19 09:36:18,813 INFO L125 PetriNetUnfolderBase]: For 10089/10119 co-relation queries the response was YES. [2024-11-19 09:36:18,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11501 conditions, 4723 events. 2488/4723 cut-off events. For 10089/10119 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 27792 event pairs, 1302 based on Foata normal form. 42/4473 useless extension candidates. Maximal degree in co-relation 9484. Up to 2173 conditions per place. [2024-11-19 09:36:18,834 INFO L140 encePairwiseOnDemand]: 144/152 looper letters, 91 selfloop transitions, 4 changer transitions 69/182 dead transitions. [2024-11-19 09:36:18,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 182 transitions, 951 flow [2024-11-19 09:36:18,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:36:18,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:36:18,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 641 transitions. [2024-11-19 09:36:18,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4685672514619883 [2024-11-19 09:36:18,839 INFO L175 Difference]: Start difference. First operand has 74 places, 70 transitions, 332 flow. Second operand 9 states and 641 transitions. [2024-11-19 09:36:18,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 182 transitions, 951 flow [2024-11-19 09:36:18,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 182 transitions, 923 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-19 09:36:18,850 INFO L231 Difference]: Finished difference. Result has 83 places, 69 transitions, 316 flow [2024-11-19 09:36:18,851 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=316, PETRI_PLACES=83, PETRI_TRANSITIONS=69} [2024-11-19 09:36:18,851 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -3 predicate places. [2024-11-19 09:36:18,851 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 69 transitions, 316 flow [2024-11-19 09:36:18,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 59.214285714285715) internal successors, (829), 14 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:36:18,852 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:36:18,852 INFO L204 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] [2024-11-19 09:36:18,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 09:36:19,056 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,SelfDestructingSolverStorable14 [2024-11-19 09:36:19,057 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 16 more)] === [2024-11-19 09:36:19,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:36:19,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1634697999, now seen corresponding path program 3 times [2024-11-19 09:36:19,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:36:19,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259202886] [2024-11-19 09:36:19,059 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:36:19,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:36:19,109 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:36:19,113 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:36:19,334 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 09:36:19,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:36:19,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259202886] [2024-11-19 09:36:19,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259202886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:36:19,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154669765] [2024-11-19 09:36:19,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:36:19,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:36:19,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:36:19,336 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) [2024-11-19 09:36:19,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 09:36:19,438 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:36:19,439 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:36:19,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 09:36:19,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:36:19,759 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 09:36:19,759 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:36:20,134 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 09:36:20,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154669765] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:36:20,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:36:20,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 6] total 15 [2024-11-19 09:36:20,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830425402] [2024-11-19 09:36:20,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:36:20,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 09:36:20,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:36:20,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 09:36:20,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-19 09:36:20,363 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 152 [2024-11-19 09:36:20,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 69 transitions, 316 flow. Second operand has 17 states, 17 states have (on average 58.88235294117647) internal successors, (1001), 17 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:36:20,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:36:20,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 152 [2024-11-19 09:36:20,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:36:21,447 INFO L124 PetriNetUnfolderBase]: 2053/3823 cut-off events. [2024-11-19 09:36:21,448 INFO L125 PetriNetUnfolderBase]: For 10273/10300 co-relation queries the response was YES. [2024-11-19 09:36:21,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9514 conditions, 3823 events. 2053/3823 cut-off events. For 10273/10300 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 20966 event pairs, 1120 based on Foata normal form. 39/3618 useless extension candidates. Maximal degree in co-relation 9498. Up to 1759 conditions per place. [2024-11-19 09:36:21,458 INFO L140 encePairwiseOnDemand]: 144/152 looper letters, 0 selfloop transitions, 0 changer transitions 174/174 dead transitions. [2024-11-19 09:36:21,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 174 transitions, 851 flow [2024-11-19 09:36:21,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 09:36:21,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-19 09:36:21,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 745 transitions. [2024-11-19 09:36:21,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44557416267942584 [2024-11-19 09:36:21,461 INFO L175 Difference]: Start difference. First operand has 83 places, 69 transitions, 316 flow. Second operand 11 states and 745 transitions. [2024-11-19 09:36:21,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 174 transitions, 851 flow [2024-11-19 09:36:21,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 174 transitions, 834 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-19 09:36:21,470 INFO L231 Difference]: Finished difference. Result has 82 places, 0 transitions, 0 flow [2024-11-19 09:36:21,470 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=152, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=82, PETRI_TRANSITIONS=0} [2024-11-19 09:36:21,471 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -4 predicate places. [2024-11-19 09:36:21,471 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 0 transitions, 0 flow [2024-11-19 09:36:21,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 58.88235294117647) internal successors, (1001), 17 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:36:21,473 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK (18 of 19 remaining) [2024-11-19 09:36:21,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (17 of 19 remaining) [2024-11-19 09:36:21,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (16 of 19 remaining) [2024-11-19 09:36:21,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (15 of 19 remaining) [2024-11-19 09:36:21,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 19 remaining) [2024-11-19 09:36:21,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 19 remaining) [2024-11-19 09:36:21,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (12 of 19 remaining) [2024-11-19 09:36:21,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 19 remaining) [2024-11-19 09:36:21,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONMEMORY_LEAK (10 of 19 remaining) [2024-11-19 09:36:21,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 19 remaining) [2024-11-19 09:36:21,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 19 remaining) [2024-11-19 09:36:21,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONMEMORY_LEAK (7 of 19 remaining) [2024-11-19 09:36:21,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 19 remaining) [2024-11-19 09:36:21,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 19 remaining) [2024-11-19 09:36:21,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONMEMORY_LEAK (4 of 19 remaining) [2024-11-19 09:36:21,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 19 remaining) [2024-11-19 09:36:21,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 19 remaining) [2024-11-19 09:36:21,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 19 remaining) [2024-11-19 09:36:21,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 19 remaining) [2024-11-19 09:36:21,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 09:36:21,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-19 09:36:21,680 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:36:21,685 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 09:36:21,685 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 09:36:21,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:36:21 BasicIcfg [2024-11-19 09:36:21,688 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 09:36:21,688 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 09:36:21,689 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 09:36:21,689 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 09:36:21,689 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:36:08" (3/4) ... [2024-11-19 09:36:21,690 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 09:36:21,692 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2024-11-19 09:36:21,693 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2024-11-19 09:36:21,696 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 61 nodes and edges [2024-11-19 09:36:21,696 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-11-19 09:36:21,696 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-19 09:36:21,697 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 09:36:21,768 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 09:36:21,768 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 09:36:21,768 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 09:36:21,769 INFO L158 Benchmark]: Toolchain (without parser) took 14603.60ms. Allocated memory was 159.4MB in the beginning and 775.9MB in the end (delta: 616.6MB). Free memory was 83.1MB in the beginning and 284.5MB in the end (delta: -201.4MB). Peak memory consumption was 415.9MB. Max. memory is 16.1GB. [2024-11-19 09:36:21,769 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 110.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 09:36:21,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 951.71ms. Allocated memory was 159.4MB in the beginning and 247.5MB in the end (delta: 88.1MB). Free memory was 82.8MB in the beginning and 180.3MB in the end (delta: -97.5MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-11-19 09:36:21,769 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.71ms. Allocated memory is still 247.5MB. Free memory was 180.3MB in the beginning and 177.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 09:36:21,769 INFO L158 Benchmark]: Boogie Preprocessor took 66.00ms. Allocated memory is still 247.5MB. Free memory was 177.2MB in the beginning and 173.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 09:36:21,770 INFO L158 Benchmark]: RCFGBuilder took 674.48ms. Allocated memory is still 247.5MB. Free memory was 171.9MB in the beginning and 126.8MB in the end (delta: 45.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-11-19 09:36:21,770 INFO L158 Benchmark]: TraceAbstraction took 12748.49ms. Allocated memory was 247.5MB in the beginning and 775.9MB in the end (delta: 528.5MB). Free memory was 126.8MB in the beginning and 289.8MB in the end (delta: -162.9MB). Peak memory consumption was 365.6MB. Max. memory is 16.1GB. [2024-11-19 09:36:21,770 INFO L158 Benchmark]: Witness Printer took 79.82ms. Allocated memory is still 775.9MB. Free memory was 289.8MB in the beginning and 284.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 09:36:21,771 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 110.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 951.71ms. Allocated memory was 159.4MB in the beginning and 247.5MB in the end (delta: 88.1MB). Free memory was 82.8MB in the beginning and 180.3MB in the end (delta: -97.5MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.71ms. Allocated memory is still 247.5MB. Free memory was 180.3MB in the beginning and 177.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.00ms. Allocated memory is still 247.5MB. Free memory was 177.2MB in the beginning and 173.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 674.48ms. Allocated memory is still 247.5MB. Free memory was 171.9MB in the beginning and 126.8MB in the end (delta: 45.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 12748.49ms. Allocated memory was 247.5MB in the beginning and 775.9MB in the end (delta: 528.5MB). Free memory was 126.8MB in the beginning and 289.8MB in the end (delta: -162.9MB). Peak memory consumption was 365.6MB. Max. memory is 16.1GB. * Witness Printer took 79.82ms. Allocated memory is still 775.9MB. Free memory was 289.8MB in the beginning and 284.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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, 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: 12.6s, OverallIterations: 16, TraceHistogramMax: 3, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1051 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 926 mSDsluCounter, 377 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 357 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4665 IncrementalHoareTripleChecker+Invalid, 4702 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 20 mSDtfsCounter, 4665 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 240 GetRequests, 186 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=332occurred in iteration=14, InterpolantAutomatonStates: 71, 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, 0.2s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 505 NumberOfCodeBlocks, 481 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 577 ConstructedInterpolants, 87 QuantifiedInterpolants, 4793 SizeOfPredicates, 0 NumberOfNonLiveVariables, 486 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 PerfectInterpolantSequences, 47/81 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 09:36:21,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE