./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 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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-803cd42-m [2024-11-22 21:34:08,724 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:34:08,774 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 21:34:08,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:34:08,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:34:08,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:34:08,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:34:08,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:34:08,802 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:34:08,802 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:34:08,802 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:34:08,802 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:34:08,803 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:34:08,803 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:34:08,804 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:34:08,805 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:34:08,805 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:34:08,807 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:34:08,808 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:34:08,808 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:34:08,808 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:34:08,809 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:34:08,809 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:34:08,809 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:34:08,810 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:34:08,810 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:34:08,810 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:34:08,811 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:34:08,811 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:34:08,811 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:34:08,811 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:34:08,811 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:34:08,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:34:08,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:34:08,812 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:34:08,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:34:08,813 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 21:34:08,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 21:34:08,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:34:08,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:34:08,814 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:34:08,814 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:34:08,814 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2024-11-22 21:34:09,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:34:09,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:34:09,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:34:09,041 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:34:09,041 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:34:09,042 INFO L431 ainManager$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 [2024-11-22 21:34:10,282 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:34:10,498 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:34:10,498 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2024-11-22 21:34:10,522 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31a6ebcdf/cc950d3479f0453f89d01c986593efc0/FLAGd08d9802b [2024-11-22 21:34:10,535 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31a6ebcdf/cc950d3479f0453f89d01c986593efc0 [2024-11-22 21:34:10,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:34:10,539 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:34:10,541 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:34:10,541 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:34:10,545 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:34:10,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:10" (1/1) ... [2024-11-22 21:34:10,546 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@589d7f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:10, skipping insertion in model container [2024-11-22 21:34:10,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:10" (1/1) ... [2024-11-22 21:34:10,589 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:34:11,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:34:11,071 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 21:34:11,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:34:11,251 INFO L204 MainTranslator]: Completed translation [2024-11-22 21:34:11,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11 WrapperNode [2024-11-22 21:34:11,252 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:34:11,253 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 21:34:11,253 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 21:34:11,253 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 21:34:11,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,312 INFO L138 Inliner]: procedures = 487, calls = 37, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 215 [2024-11-22 21:34:11,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 21:34:11,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 21:34:11,314 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 21:34:11,314 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 21:34:11,322 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,326 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,344 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]. [2024-11-22 21:34:11,344 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,356 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,361 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,368 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 21:34:11,369 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 21:34:11,369 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 21:34:11,369 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 21:34:11,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (1/1) ... [2024-11-22 21:34:11,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:34:11,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:34:11,402 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) [2024-11-22 21:34:11,405 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 [2024-11-22 21:34:11,442 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2024-11-22 21:34:11,443 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2024-11-22 21:34:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 21:34:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2024-11-22 21:34:11,443 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2024-11-22 21:34:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 21:34:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 21:34:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 21:34:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 21:34:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 21:34:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 21:34:11,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 21:34:11,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 21:34:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 21:34:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 21:34:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 21:34:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 21:34:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 21:34:11,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 21:34:11,448 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 21:34:11,672 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 21:34:11,674 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 21:34:11,914 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 21:34:11,914 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 21:34:12,028 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 21:34:12,028 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 21:34:12,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:12 BoogieIcfgContainer [2024-11-22 21:34:12,029 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 21:34:12,031 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 21:34:12,031 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 21:34:12,033 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 21:34:12,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:34:10" (1/3) ... [2024-11-22 21:34:12,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2dccc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:34:12, skipping insertion in model container [2024-11-22 21:34:12,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:11" (2/3) ... [2024-11-22 21:34:12,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2dccc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:34:12, skipping insertion in model container [2024-11-22 21:34:12,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:12" (3/3) ... [2024-11-22 21:34:12,035 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2024-11-22 21:34:12,048 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 21:34:12,049 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-11-22 21:34:12,049 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 21:34:12,106 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-11-22 21:34:12,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 152 transitions, 331 flow [2024-11-22 21:34:12,170 INFO L124 PetriNetUnfolderBase]: 36/156 cut-off events. [2024-11-22 21:34:12,170 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-22 21:34:12,174 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. [2024-11-22 21:34:12,175 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 152 transitions, 331 flow [2024-11-22 21:34:12,178 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 106 transitions, 228 flow [2024-11-22 21:34:12,189 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 21:34:12,194 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;@7ebc0adc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 21:34:12,194 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-22 21:34:12,196 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 21:34:12,197 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2024-11-22 21:34:12,197 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 21:34:12,197 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:12,197 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-22 21:34:12,198 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)] === [2024-11-22 21:34:12,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:12,202 INFO L85 PathProgramCache]: Analyzing trace with hash 18974977, now seen corresponding path program 1 times [2024-11-22 21:34:12,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:34:12,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542446089] [2024-11-22 21:34:12,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:12,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:34:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:12,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:12,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:34:12,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542446089] [2024-11-22 21:34:12,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542446089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:12,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:12,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:12,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510500602] [2024-11-22 21:34:12,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:12,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:12,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:34:12,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:12,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:12,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 152 [2024-11-22 21:34:12,603 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) [2024-11-22 21:34:12,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:12,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 152 [2024-11-22 21:34:12,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:13,009 INFO L124 PetriNetUnfolderBase]: 2021/3758 cut-off events. [2024-11-22 21:34:13,010 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-22 21:34:13,021 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. [2024-11-22 21:34:13,037 INFO L140 encePairwiseOnDemand]: 135/152 looper letters, 54 selfloop transitions, 6 changer transitions 0/88 dead transitions. [2024-11-22 21:34:13,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 88 transitions, 312 flow [2024-11-22 21:34:13,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:13,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:13,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 233 transitions. [2024-11-22 21:34:13,048 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5109649122807017 [2024-11-22 21:34:13,050 INFO L175 Difference]: Start difference. First operand has 86 places, 106 transitions, 228 flow. Second operand 3 states and 233 transitions. [2024-11-22 21:34:13,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 88 transitions, 312 flow [2024-11-22 21:34:13,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 88 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:13,057 INFO L231 Difference]: Finished difference. Result has 71 places, 77 transitions, 178 flow [2024-11-22 21:34:13,059 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} [2024-11-22 21:34:13,064 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -15 predicate places. [2024-11-22 21:34:13,064 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 77 transitions, 178 flow [2024-11-22 21:34:13,065 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) [2024-11-22 21:34:13,065 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:13,065 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:13,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 21:34:13,066 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)] === [2024-11-22 21:34:13,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:13,067 INFO L85 PathProgramCache]: Analyzing trace with hash -731045201, now seen corresponding path program 1 times [2024-11-22 21:34:13,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:34:13,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352357701] [2024-11-22 21:34:13,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:13,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:34:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:13,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:13,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:34:13,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352357701] [2024-11-22 21:34:13,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352357701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:13,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:13,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:34:13,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297160390] [2024-11-22 21:34:13,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:13,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:34:13,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:34:13,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:34:13,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:34:13,224 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 152 [2024-11-22 21:34:13,225 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) [2024-11-22 21:34:13,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:13,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 152 [2024-11-22 21:34:13,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:13,550 INFO L124 PetriNetUnfolderBase]: 1295/2395 cut-off events. [2024-11-22 21:34:13,550 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-22 21:34:13,553 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. [2024-11-22 21:34:13,560 INFO L140 encePairwiseOnDemand]: 148/152 looper letters, 108 selfloop transitions, 3 changer transitions 2/144 dead transitions. [2024-11-22 21:34:13,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 144 transitions, 556 flow [2024-11-22 21:34:13,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:34:13,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 21:34:13,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 338 transitions. [2024-11-22 21:34:13,563 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.555921052631579 [2024-11-22 21:34:13,563 INFO L175 Difference]: Start difference. First operand has 71 places, 77 transitions, 178 flow. Second operand 4 states and 338 transitions. [2024-11-22 21:34:13,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 144 transitions, 556 flow [2024-11-22 21:34:13,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 144 transitions, 544 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:13,569 INFO L231 Difference]: Finished difference. Result has 74 places, 78 transitions, 183 flow [2024-11-22 21:34:13,569 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} [2024-11-22 21:34:13,569 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -12 predicate places. [2024-11-22 21:34:13,570 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 78 transitions, 183 flow [2024-11-22 21:34:13,570 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) [2024-11-22 21:34:13,570 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:13,570 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:13,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 21:34:13,571 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)] === [2024-11-22 21:34:13,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:13,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1901598, now seen corresponding path program 1 times [2024-11-22 21:34:13,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:34:13,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431191984] [2024-11-22 21:34:13,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:13,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:34:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:13,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:13,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:34:13,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431191984] [2024-11-22 21:34:13,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431191984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:13,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:13,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-22 21:34:13,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137539086] [2024-11-22 21:34:13,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:13,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:13,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:34:13,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:13,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:13,626 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2024-11-22 21:34:13,627 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) [2024-11-22 21:34:13,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:13,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2024-11-22 21:34:13,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:13,926 INFO L124 PetriNetUnfolderBase]: 2329/4170 cut-off events. [2024-11-22 21:34:13,926 INFO L125 PetriNetUnfolderBase]: For 2902/2902 co-relation queries the response was YES. [2024-11-22 21:34:13,931 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. [2024-11-22 21:34:13,946 INFO L140 encePairwiseOnDemand]: 147/152 looper letters, 70 selfloop transitions, 4 changer transitions 6/109 dead transitions. [2024-11-22 21:34:13,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 109 transitions, 417 flow [2024-11-22 21:34:13,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:13,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:13,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2024-11-22 21:34:13,949 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5350877192982456 [2024-11-22 21:34:13,949 INFO L175 Difference]: Start difference. First operand has 74 places, 78 transitions, 183 flow. Second operand 3 states and 244 transitions. [2024-11-22 21:34:13,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 109 transitions, 417 flow [2024-11-22 21:34:13,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 109 transitions, 415 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 21:34:13,952 INFO L231 Difference]: Finished difference. Result has 76 places, 75 transitions, 194 flow [2024-11-22 21:34:13,952 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} [2024-11-22 21:34:13,953 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -10 predicate places. [2024-11-22 21:34:13,953 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 75 transitions, 194 flow [2024-11-22 21:34:13,953 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) [2024-11-22 21:34:13,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:13,953 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:13,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 21:34:13,954 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)] === [2024-11-22 21:34:13,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:13,954 INFO L85 PathProgramCache]: Analyzing trace with hash 509677974, now seen corresponding path program 1 times [2024-11-22 21:34:13,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:34:13,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869760754] [2024-11-22 21:34:13,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:13,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:34:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:14,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:14,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:34:14,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869760754] [2024-11-22 21:34:14,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869760754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:14,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:14,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:34:14,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934697566] [2024-11-22 21:34:14,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:14,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:14,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:34:14,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:14,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:14,035 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 152 [2024-11-22 21:34:14,035 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) [2024-11-22 21:34:14,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:14,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 152 [2024-11-22 21:34:14,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:14,296 INFO L124 PetriNetUnfolderBase]: 2336/4118 cut-off events. [2024-11-22 21:34:14,296 INFO L125 PetriNetUnfolderBase]: For 3366/3368 co-relation queries the response was YES. [2024-11-22 21:34:14,301 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. [2024-11-22 21:34:14,317 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 56 selfloop transitions, 4 changer transitions 0/84 dead transitions. [2024-11-22 21:34:14,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 84 transitions, 351 flow [2024-11-22 21:34:14,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:14,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:14,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 221 transitions. [2024-11-22 21:34:14,320 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48464912280701755 [2024-11-22 21:34:14,320 INFO L175 Difference]: Start difference. First operand has 76 places, 75 transitions, 194 flow. Second operand 3 states and 221 transitions. [2024-11-22 21:34:14,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 84 transitions, 351 flow [2024-11-22 21:34:14,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 84 transitions, 316 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-22 21:34:14,325 INFO L231 Difference]: Finished difference. Result has 65 places, 69 transitions, 170 flow [2024-11-22 21:34:14,326 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} [2024-11-22 21:34:14,326 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -21 predicate places. [2024-11-22 21:34:14,327 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 69 transitions, 170 flow [2024-11-22 21:34:14,327 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) [2024-11-22 21:34:14,327 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:14,327 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:14,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 21:34:14,327 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)] === [2024-11-22 21:34:14,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:14,327 INFO L85 PathProgramCache]: Analyzing trace with hash 432892749, now seen corresponding path program 1 times [2024-11-22 21:34:14,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:34:14,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675532226] [2024-11-22 21:34:14,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:14,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:34:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:14,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:14,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:34:14,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675532226] [2024-11-22 21:34:14,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675532226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:14,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:14,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:14,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490325083] [2024-11-22 21:34:14,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:14,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:14,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:34:14,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:14,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:14,423 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2024-11-22 21:34:14,424 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) [2024-11-22 21:34:14,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:14,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2024-11-22 21:34:14,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:14,692 INFO L124 PetriNetUnfolderBase]: 2363/4298 cut-off events. [2024-11-22 21:34:14,692 INFO L125 PetriNetUnfolderBase]: For 606/612 co-relation queries the response was YES. [2024-11-22 21:34:14,697 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. [2024-11-22 21:34:14,710 INFO L140 encePairwiseOnDemand]: 147/152 looper letters, 71 selfloop transitions, 5 changer transitions 0/101 dead transitions. [2024-11-22 21:34:14,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 101 transitions, 406 flow [2024-11-22 21:34:14,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:14,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:14,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2024-11-22 21:34:14,712 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2024-11-22 21:34:14,712 INFO L175 Difference]: Start difference. First operand has 65 places, 69 transitions, 170 flow. Second operand 3 states and 240 transitions. [2024-11-22 21:34:14,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 101 transitions, 406 flow [2024-11-22 21:34:14,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 101 transitions, 390 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:14,715 INFO L231 Difference]: Finished difference. Result has 67 places, 71 transitions, 192 flow [2024-11-22 21:34:14,715 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} [2024-11-22 21:34:14,715 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -19 predicate places. [2024-11-22 21:34:14,716 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 71 transitions, 192 flow [2024-11-22 21:34:14,716 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) [2024-11-22 21:34:14,716 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:14,716 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:14,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 21:34:14,716 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)] === [2024-11-22 21:34:14,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:14,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1138683084, now seen corresponding path program 1 times [2024-11-22 21:34:14,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:34:14,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047602388] [2024-11-22 21:34:14,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:14,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:34:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:14,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:14,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:34:14,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047602388] [2024-11-22 21:34:14,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047602388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:14,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:14,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:14,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387644663] [2024-11-22 21:34:14,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:14,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:14,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:34:14,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:14,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:14,843 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2024-11-22 21:34:14,844 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) [2024-11-22 21:34:14,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:14,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2024-11-22 21:34:14,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:15,139 INFO L124 PetriNetUnfolderBase]: 2350/4259 cut-off events. [2024-11-22 21:34:15,139 INFO L125 PetriNetUnfolderBase]: For 1944/1954 co-relation queries the response was YES. [2024-11-22 21:34:15,145 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. [2024-11-22 21:34:15,160 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 72 selfloop transitions, 3 changer transitions 0/100 dead transitions. [2024-11-22 21:34:15,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 100 transitions, 413 flow [2024-11-22 21:34:15,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:15,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:15,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 237 transitions. [2024-11-22 21:34:15,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5197368421052632 [2024-11-22 21:34:15,163 INFO L175 Difference]: Start difference. First operand has 67 places, 71 transitions, 192 flow. Second operand 3 states and 237 transitions. [2024-11-22 21:34:15,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 100 transitions, 413 flow [2024-11-22 21:34:15,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 100 transitions, 403 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:15,168 INFO L231 Difference]: Finished difference. Result has 66 places, 70 transitions, 186 flow [2024-11-22 21:34:15,169 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} [2024-11-22 21:34:15,169 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -20 predicate places. [2024-11-22 21:34:15,169 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 70 transitions, 186 flow [2024-11-22 21:34:15,170 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) [2024-11-22 21:34:15,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:15,170 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:15,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 21:34:15,170 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)] === [2024-11-22 21:34:15,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:15,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1625422643, now seen corresponding path program 1 times [2024-11-22 21:34:15,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:34:15,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046613057] [2024-11-22 21:34:15,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:15,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:34:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:15,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:15,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:34:15,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046613057] [2024-11-22 21:34:15,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046613057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:15,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:15,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:34:15,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931912756] [2024-11-22 21:34:15,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:15,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:15,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:34:15,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:15,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:15,251 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2024-11-22 21:34:15,251 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) [2024-11-22 21:34:15,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:15,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2024-11-22 21:34:15,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:15,479 INFO L124 PetriNetUnfolderBase]: 2349/4021 cut-off events. [2024-11-22 21:34:15,479 INFO L125 PetriNetUnfolderBase]: For 1943/1947 co-relation queries the response was YES. [2024-11-22 21:34:15,484 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. [2024-11-22 21:34:15,495 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 64 selfloop transitions, 2 changer transitions 2/90 dead transitions. [2024-11-22 21:34:15,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 90 transitions, 389 flow [2024-11-22 21:34:15,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:15,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:15,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 227 transitions. [2024-11-22 21:34:15,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49780701754385964 [2024-11-22 21:34:15,496 INFO L175 Difference]: Start difference. First operand has 66 places, 70 transitions, 186 flow. Second operand 3 states and 227 transitions. [2024-11-22 21:34:15,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 90 transitions, 389 flow [2024-11-22 21:34:15,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 90 transitions, 377 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:15,499 INFO L231 Difference]: Finished difference. Result has 63 places, 66 transitions, 174 flow [2024-11-22 21:34:15,499 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} [2024-11-22 21:34:15,500 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -23 predicate places. [2024-11-22 21:34:15,500 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 66 transitions, 174 flow [2024-11-22 21:34:15,500 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) [2024-11-22 21:34:15,500 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:15,501 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:15,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 21:34:15,501 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)] === [2024-11-22 21:34:15,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:15,501 INFO L85 PathProgramCache]: Analyzing trace with hash 406975608, now seen corresponding path program 1 times [2024-11-22 21:34:15,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:34:15,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172640027] [2024-11-22 21:34:15,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:15,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:34:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:15,555 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:15,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:34:15,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172640027] [2024-11-22 21:34:15,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172640027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:15,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:15,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:34:15,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600583236] [2024-11-22 21:34:15,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:15,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:15,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:34:15,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:15,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:15,566 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 152 [2024-11-22 21:34:15,566 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) [2024-11-22 21:34:15,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:15,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 152 [2024-11-22 21:34:15,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:15,765 INFO L124 PetriNetUnfolderBase]: 2070/3671 cut-off events. [2024-11-22 21:34:15,765 INFO L125 PetriNetUnfolderBase]: For 1018/1021 co-relation queries the response was YES. [2024-11-22 21:34:15,772 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. [2024-11-22 21:34:15,783 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 60 selfloop transitions, 3 changer transitions 2/85 dead transitions. [2024-11-22 21:34:15,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 85 transitions, 357 flow [2024-11-22 21:34:15,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:15,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:15,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2024-11-22 21:34:15,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4780701754385965 [2024-11-22 21:34:15,784 INFO L175 Difference]: Start difference. First operand has 63 places, 66 transitions, 174 flow. Second operand 3 states and 218 transitions. [2024-11-22 21:34:15,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 85 transitions, 357 flow [2024-11-22 21:34:15,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 85 transitions, 343 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-22 21:34:15,789 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 183 flow [2024-11-22 21:34:15,790 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} [2024-11-22 21:34:15,790 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -25 predicate places. [2024-11-22 21:34:15,791 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 183 flow [2024-11-22 21:34:15,791 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) [2024-11-22 21:34:15,792 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:15,792 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] [2024-11-22 21:34:15,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 21:34:15,792 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)] === [2024-11-22 21:34:15,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:15,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1418178821, now seen corresponding path program 1 times [2024-11-22 21:34:15,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:34:15,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941182288] [2024-11-22 21:34:15,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:15,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:34:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:15,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:34:15,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:34:15,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941182288] [2024-11-22 21:34:15,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941182288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:15,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:15,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:15,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178133816] [2024-11-22 21:34:15,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:15,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:34:15,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:34:15,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:34:15,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:34:15,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2024-11-22 21:34:15,948 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) [2024-11-22 21:34:15,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:15,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2024-11-22 21:34:15,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:16,199 INFO L124 PetriNetUnfolderBase]: 2173/3984 cut-off events. [2024-11-22 21:34:16,200 INFO L125 PetriNetUnfolderBase]: For 1259/1265 co-relation queries the response was YES. [2024-11-22 21:34:16,204 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. [2024-11-22 21:34:16,213 INFO L140 encePairwiseOnDemand]: 147/152 looper letters, 85 selfloop transitions, 4 changer transitions 8/118 dead transitions. [2024-11-22 21:34:16,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 118 transitions, 506 flow [2024-11-22 21:34:16,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:34:16,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 21:34:16,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 316 transitions. [2024-11-22 21:34:16,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5197368421052632 [2024-11-22 21:34:16,215 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 183 flow. Second operand 4 states and 316 transitions. [2024-11-22 21:34:16,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 118 transitions, 506 flow [2024-11-22 21:34:16,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 118 transitions, 496 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:16,218 INFO L231 Difference]: Finished difference. Result has 64 places, 66 transitions, 202 flow [2024-11-22 21:34:16,218 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} [2024-11-22 21:34:16,218 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -22 predicate places. [2024-11-22 21:34:16,219 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 66 transitions, 202 flow [2024-11-22 21:34:16,219 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) [2024-11-22 21:34:16,219 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:16,219 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] [2024-11-22 21:34:16,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 21:34:16,219 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)] === [2024-11-22 21:34:16,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:16,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1187478350, now seen corresponding path program 1 times [2024-11-22 21:34:16,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:34:16,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555574254] [2024-11-22 21:34:16,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:16,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:34:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:16,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 21:34:16,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:34:16,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555574254] [2024-11-22 21:34:16,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555574254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:16,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:16,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:16,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870579380] [2024-11-22 21:34:16,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:16,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:16,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:34:16,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:16,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:16,318 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2024-11-22 21:34:16,319 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) [2024-11-22 21:34:16,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:16,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2024-11-22 21:34:16,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:16,525 INFO L124 PetriNetUnfolderBase]: 1938/3588 cut-off events. [2024-11-22 21:34:16,525 INFO L125 PetriNetUnfolderBase]: For 2212/2213 co-relation queries the response was YES. [2024-11-22 21:34:16,529 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. [2024-11-22 21:34:16,537 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 52 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2024-11-22 21:34:16,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 78 transitions, 344 flow [2024-11-22 21:34:16,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:16,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:16,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2024-11-22 21:34:16,539 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4780701754385965 [2024-11-22 21:34:16,539 INFO L175 Difference]: Start difference. First operand has 64 places, 66 transitions, 202 flow. Second operand 3 states and 218 transitions. [2024-11-22 21:34:16,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 78 transitions, 344 flow [2024-11-22 21:34:16,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 78 transitions, 331 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-22 21:34:16,542 INFO L231 Difference]: Finished difference. Result has 62 places, 65 transitions, 197 flow [2024-11-22 21:34:16,542 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} [2024-11-22 21:34:16,543 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -24 predicate places. [2024-11-22 21:34:16,543 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 65 transitions, 197 flow [2024-11-22 21:34:16,543 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) [2024-11-22 21:34:16,543 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:16,543 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] [2024-11-22 21:34:16,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 21:34:16,544 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)] === [2024-11-22 21:34:16,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:16,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1187478349, now seen corresponding path program 1 times [2024-11-22 21:34:16,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:34:16,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998608804] [2024-11-22 21:34:16,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:16,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:34:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:16,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 21:34:16,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:34:16,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998608804] [2024-11-22 21:34:16,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998608804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:16,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:16,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 21:34:16,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823846987] [2024-11-22 21:34:16,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:16,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:34:16,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:34:16,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:34:16,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:34:16,600 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2024-11-22 21:34:16,601 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) [2024-11-22 21:34:16,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:16,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2024-11-22 21:34:16,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:16,845 INFO L124 PetriNetUnfolderBase]: 1938/3583 cut-off events. [2024-11-22 21:34:16,845 INFO L125 PetriNetUnfolderBase]: For 1979/1980 co-relation queries the response was YES. [2024-11-22 21:34:16,849 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. [2024-11-22 21:34:16,858 INFO L140 encePairwiseOnDemand]: 149/152 looper letters, 52 selfloop transitions, 5 changer transitions 0/77 dead transitions. [2024-11-22 21:34:16,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 77 transitions, 339 flow [2024-11-22 21:34:16,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:34:16,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:34:16,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2024-11-22 21:34:16,859 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4780701754385965 [2024-11-22 21:34:16,860 INFO L175 Difference]: Start difference. First operand has 62 places, 65 transitions, 197 flow. Second operand 3 states and 218 transitions. [2024-11-22 21:34:16,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 77 transitions, 339 flow [2024-11-22 21:34:16,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 77 transitions, 329 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:16,862 INFO L231 Difference]: Finished difference. Result has 61 places, 64 transitions, 195 flow [2024-11-22 21:34:16,863 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} [2024-11-22 21:34:16,864 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -25 predicate places. [2024-11-22 21:34:16,864 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 64 transitions, 195 flow [2024-11-22 21:34:16,864 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) [2024-11-22 21:34:16,864 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:16,865 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] [2024-11-22 21:34:16,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 21:34:16,865 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)] === [2024-11-22 21:34:16,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:16,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1082563405, now seen corresponding path program 1 times [2024-11-22 21:34:16,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:34:16,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449108370] [2024-11-22 21:34:16,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:16,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:34:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:17,093 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-22 21:34:17,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:34:17,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449108370] [2024-11-22 21:34:17,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449108370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:17,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:17,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:34:17,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501650509] [2024-11-22 21:34:17,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:17,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:34:17,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:34:17,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:34:17,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:34:17,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 152 [2024-11-22 21:34:17,104 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) [2024-11-22 21:34:17,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:17,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 152 [2024-11-22 21:34:17,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:17,393 INFO L124 PetriNetUnfolderBase]: 2098/3919 cut-off events. [2024-11-22 21:34:17,393 INFO L125 PetriNetUnfolderBase]: For 2128/2140 co-relation queries the response was YES. [2024-11-22 21:34:17,398 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. [2024-11-22 21:34:17,406 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 80 selfloop transitions, 9 changer transitions 0/108 dead transitions. [2024-11-22 21:34:17,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 108 transitions, 493 flow [2024-11-22 21:34:17,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:34:17,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 21:34:17,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 301 transitions. [2024-11-22 21:34:17,408 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49506578947368424 [2024-11-22 21:34:17,408 INFO L175 Difference]: Start difference. First operand has 61 places, 64 transitions, 195 flow. Second operand 4 states and 301 transitions. [2024-11-22 21:34:17,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 108 transitions, 493 flow [2024-11-22 21:34:17,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 108 transitions, 477 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:17,412 INFO L231 Difference]: Finished difference. Result has 65 places, 68 transitions, 253 flow [2024-11-22 21:34:17,412 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} [2024-11-22 21:34:17,413 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -21 predicate places. [2024-11-22 21:34:17,413 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 68 transitions, 253 flow [2024-11-22 21:34:17,413 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) [2024-11-22 21:34:17,413 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:17,413 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] [2024-11-22 21:34:17,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 21:34:17,414 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)] === [2024-11-22 21:34:17,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:17,414 INFO L85 PathProgramCache]: Analyzing trace with hash 319736429, now seen corresponding path program 2 times [2024-11-22 21:34:17,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:34:17,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670583132] [2024-11-22 21:34:17,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:34:17,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:34:17,434 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 21:34:17,434 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:34:17,582 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 21:34:17,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:34:17,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670583132] [2024-11-22 21:34:17,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670583132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:17,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:17,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:34:17,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568494617] [2024-11-22 21:34:17,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:17,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:34:17,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:34:17,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:34:17,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:34:17,611 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 152 [2024-11-22 21:34:17,611 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) [2024-11-22 21:34:17,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:17,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 152 [2024-11-22 21:34:17,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:17,984 INFO L124 PetriNetUnfolderBase]: 2089/3893 cut-off events. [2024-11-22 21:34:17,985 INFO L125 PetriNetUnfolderBase]: For 4196/4214 co-relation queries the response was YES. [2024-11-22 21:34:17,990 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. [2024-11-22 21:34:17,998 INFO L140 encePairwiseOnDemand]: 144/152 looper letters, 91 selfloop transitions, 19 changer transitions 0/129 dead transitions. [2024-11-22 21:34:17,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 129 transitions, 620 flow [2024-11-22 21:34:17,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:34:17,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 21:34:18,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 480 transitions. [2024-11-22 21:34:18,000 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45112781954887216 [2024-11-22 21:34:18,000 INFO L175 Difference]: Start difference. First operand has 65 places, 68 transitions, 253 flow. Second operand 7 states and 480 transitions. [2024-11-22 21:34:18,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 129 transitions, 620 flow [2024-11-22 21:34:18,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 129 transitions, 614 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-22 21:34:18,007 INFO L231 Difference]: Finished difference. Result has 70 places, 70 transitions, 307 flow [2024-11-22 21:34:18,007 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} [2024-11-22 21:34:18,008 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -16 predicate places. [2024-11-22 21:34:18,008 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 70 transitions, 307 flow [2024-11-22 21:34:18,008 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) [2024-11-22 21:34:18,008 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:18,008 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] [2024-11-22 21:34:18,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 21:34:18,009 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)] === [2024-11-22 21:34:18,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:18,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1726244957, now seen corresponding path program 1 times [2024-11-22 21:34:18,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:34:18,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566869004] [2024-11-22 21:34:18,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:34:18,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:34:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:34:18,193 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 21:34:18,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:34:18,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566869004] [2024-11-22 21:34:18,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566869004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:34:18,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:34:18,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:34:18,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582745190] [2024-11-22 21:34:18,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:34:18,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:34:18,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:34:18,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:34:18,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:34:18,208 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 152 [2024-11-22 21:34:18,209 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) [2024-11-22 21:34:18,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:18,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 152 [2024-11-22 21:34:18,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:18,503 INFO L124 PetriNetUnfolderBase]: 2187/4090 cut-off events. [2024-11-22 21:34:18,503 INFO L125 PetriNetUnfolderBase]: For 5895/5919 co-relation queries the response was YES. [2024-11-22 21:34:18,510 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. [2024-11-22 21:34:18,518 INFO L140 encePairwiseOnDemand]: 146/152 looper letters, 101 selfloop transitions, 9 changer transitions 8/136 dead transitions. [2024-11-22 21:34:18,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 136 transitions, 708 flow [2024-11-22 21:34:18,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:34:18,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:34:18,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 386 transitions. [2024-11-22 21:34:18,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5078947368421053 [2024-11-22 21:34:18,521 INFO L175 Difference]: Start difference. First operand has 70 places, 70 transitions, 307 flow. Second operand 5 states and 386 transitions. [2024-11-22 21:34:18,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 136 transitions, 708 flow [2024-11-22 21:34:18,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 136 transitions, 691 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-11-22 21:34:18,530 INFO L231 Difference]: Finished difference. Result has 74 places, 70 transitions, 332 flow [2024-11-22 21:34:18,530 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} [2024-11-22 21:34:18,531 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -12 predicate places. [2024-11-22 21:34:18,531 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 70 transitions, 332 flow [2024-11-22 21:34:18,532 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) [2024-11-22 21:34:18,532 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:18,532 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] [2024-11-22 21:34:18,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 21:34:18,532 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)] === [2024-11-22 21:34:18,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:18,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1424396863, now seen corresponding path program 2 times [2024-11-22 21:34:18,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:34:18,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037117068] [2024-11-22 21:34:18,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:34:18,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:34:18,556 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 21:34:18,557 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:34:18,868 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 21:34:18,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:34:18,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037117068] [2024-11-22 21:34:18,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037117068] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:34:18,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903523202] [2024-11-22 21:34:18,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:34:18,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:34:18,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:34:18,871 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) [2024-11-22 21:34:18,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 21:34:18,981 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 21:34:18,981 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:34:18,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 21:34:18,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:19,089 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-22 21:34:19,090 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 [2024-11-22 21:34:19,112 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2024-11-22 21:34:19,113 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 [2024-11-22 21:34:19,328 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 21:34:19,328 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:34:19,689 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 21:34:19,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903523202] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:34:19,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:34:19,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 12 [2024-11-22 21:34:19,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906049822] [2024-11-22 21:34:19,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:34:19,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 21:34:19,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:34:19,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 21:34:19,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-22 21:34:19,857 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 152 [2024-11-22 21:34:19,859 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) [2024-11-22 21:34:19,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:19,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 152 [2024-11-22 21:34:19,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:20,773 INFO L124 PetriNetUnfolderBase]: 2488/4723 cut-off events. [2024-11-22 21:34:20,773 INFO L125 PetriNetUnfolderBase]: For 10089/10119 co-relation queries the response was YES. [2024-11-22 21:34:20,781 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. [2024-11-22 21:34:20,790 INFO L140 encePairwiseOnDemand]: 144/152 looper letters, 91 selfloop transitions, 4 changer transitions 69/182 dead transitions. [2024-11-22 21:34:20,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 182 transitions, 951 flow [2024-11-22 21:34:20,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 21:34:20,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 21:34:20,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 641 transitions. [2024-11-22 21:34:20,792 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4685672514619883 [2024-11-22 21:34:20,793 INFO L175 Difference]: Start difference. First operand has 74 places, 70 transitions, 332 flow. Second operand 9 states and 641 transitions. [2024-11-22 21:34:20,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 182 transitions, 951 flow [2024-11-22 21:34:20,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 182 transitions, 923 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-22 21:34:20,804 INFO L231 Difference]: Finished difference. Result has 83 places, 69 transitions, 316 flow [2024-11-22 21:34:20,804 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} [2024-11-22 21:34:20,805 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -3 predicate places. [2024-11-22 21:34:20,805 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 69 transitions, 316 flow [2024-11-22 21:34:20,805 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) [2024-11-22 21:34:20,806 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:34:20,806 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] [2024-11-22 21:34:20,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 21:34:21,009 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 [2024-11-22 21:34:21,010 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)] === [2024-11-22 21:34:21,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:34:21,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1634697999, now seen corresponding path program 3 times [2024-11-22 21:34:21,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:34:21,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734928944] [2024-11-22 21:34:21,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:34:21,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:34:21,029 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-22 21:34:21,030 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:34:21,222 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 21:34:21,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:34:21,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734928944] [2024-11-22 21:34:21,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734928944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:34:21,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137567780] [2024-11-22 21:34:21,223 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:34:21,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:34:21,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:34:21,225 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) [2024-11-22 21:34:21,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 21:34:21,322 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-22 21:34:21,322 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:34:21,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 21:34:21,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:34:21,622 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 21:34:21,622 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:34:21,940 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 21:34:21,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137567780] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:34:21,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:34:21,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 6] total 15 [2024-11-22 21:34:21,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810086074] [2024-11-22 21:34:21,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:34:21,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-22 21:34:21,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:34:21,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-22 21:34:21,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-22 21:34:22,140 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 152 [2024-11-22 21:34:22,141 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) [2024-11-22 21:34:22,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:34:22,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 152 [2024-11-22 21:34:22,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:34:23,048 INFO L124 PetriNetUnfolderBase]: 2053/3823 cut-off events. [2024-11-22 21:34:23,048 INFO L125 PetriNetUnfolderBase]: For 10273/10300 co-relation queries the response was YES. [2024-11-22 21:34:23,055 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. [2024-11-22 21:34:23,058 INFO L140 encePairwiseOnDemand]: 144/152 looper letters, 0 selfloop transitions, 0 changer transitions 174/174 dead transitions. [2024-11-22 21:34:23,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 174 transitions, 851 flow [2024-11-22 21:34:23,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 21:34:23,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-22 21:34:23,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 745 transitions. [2024-11-22 21:34:23,060 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44557416267942584 [2024-11-22 21:34:23,060 INFO L175 Difference]: Start difference. First operand has 83 places, 69 transitions, 316 flow. Second operand 11 states and 745 transitions. [2024-11-22 21:34:23,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 174 transitions, 851 flow [2024-11-22 21:34:23,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 174 transitions, 834 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-22 21:34:23,070 INFO L231 Difference]: Finished difference. Result has 82 places, 0 transitions, 0 flow [2024-11-22 21:34:23,071 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} [2024-11-22 21:34:23,071 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -4 predicate places. [2024-11-22 21:34:23,071 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 0 transitions, 0 flow [2024-11-22 21:34:23,072 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) [2024-11-22 21:34:23,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK (18 of 19 remaining) [2024-11-22 21:34:23,074 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (17 of 19 remaining) [2024-11-22 21:34:23,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (16 of 19 remaining) [2024-11-22 21:34:23,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (15 of 19 remaining) [2024-11-22 21:34:23,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 19 remaining) [2024-11-22 21:34:23,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 19 remaining) [2024-11-22 21:34:23,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (12 of 19 remaining) [2024-11-22 21:34:23,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 19 remaining) [2024-11-22 21:34:23,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONMEMORY_LEAK (10 of 19 remaining) [2024-11-22 21:34:23,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 19 remaining) [2024-11-22 21:34:23,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 19 remaining) [2024-11-22 21:34:23,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONMEMORY_LEAK (7 of 19 remaining) [2024-11-22 21:34:23,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 19 remaining) [2024-11-22 21:34:23,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 19 remaining) [2024-11-22 21:34:23,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONMEMORY_LEAK (4 of 19 remaining) [2024-11-22 21:34:23,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 19 remaining) [2024-11-22 21:34:23,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 19 remaining) [2024-11-22 21:34:23,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 19 remaining) [2024-11-22 21:34:23,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 19 remaining) [2024-11-22 21:34:23,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 21:34:23,280 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 [2024-11-22 21:34:23,281 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:34:23,286 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-22 21:34:23,287 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 21:34:23,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:34:23 BasicIcfg [2024-11-22 21:34:23,291 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 21:34:23,291 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 21:34:23,291 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 21:34:23,292 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 21:34:23,292 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:12" (3/4) ... [2024-11-22 21:34:23,294 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 21:34:23,295 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2024-11-22 21:34:23,296 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2024-11-22 21:34:23,300 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 61 nodes and edges [2024-11-22 21:34:23,301 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-11-22 21:34:23,301 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-22 21:34:23,301 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-22 21:34:23,382 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 21:34:23,382 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 21:34:23,383 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 21:34:23,383 INFO L158 Benchmark]: Toolchain (without parser) took 12844.03ms. Allocated memory was 151.0MB in the beginning and 524.3MB in the end (delta: 373.3MB). Free memory was 95.3MB in the beginning and 272.5MB in the end (delta: -177.2MB). Peak memory consumption was 198.0MB. Max. memory is 16.1GB. [2024-11-22 21:34:23,383 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 151.0MB. Free memory is still 128.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:34:23,384 INFO L158 Benchmark]: CACSL2BoogieTranslator took 711.02ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 95.1MB in the beginning and 142.0MB in the end (delta: -47.0MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. [2024-11-22 21:34:23,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.67ms. Allocated memory is still 192.9MB. Free memory was 142.0MB in the beginning and 137.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 21:34:23,385 INFO L158 Benchmark]: Boogie Preprocessor took 54.33ms. Allocated memory is still 192.9MB. Free memory was 137.8MB in the beginning and 133.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 21:34:23,385 INFO L158 Benchmark]: RCFGBuilder took 660.77ms. Allocated memory is still 192.9MB. Free memory was 133.6MB in the beginning and 89.6MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-22 21:34:23,385 INFO L158 Benchmark]: TraceAbstraction took 11260.22ms. Allocated memory was 192.9MB in the beginning and 524.3MB in the end (delta: 331.4MB). Free memory was 88.8MB in the beginning and 277.2MB in the end (delta: -188.4MB). Peak memory consumption was 143.0MB. Max. memory is 16.1GB. [2024-11-22 21:34:23,386 INFO L158 Benchmark]: Witness Printer took 91.50ms. Allocated memory is still 524.3MB. Free memory was 277.2MB in the beginning and 272.5MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 21:34:23,387 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 151.0MB. Free memory is still 128.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 711.02ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 95.1MB in the beginning and 142.0MB in the end (delta: -47.0MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.67ms. Allocated memory is still 192.9MB. Free memory was 142.0MB in the beginning and 137.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.33ms. Allocated memory is still 192.9MB. Free memory was 137.8MB in the beginning and 133.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 660.77ms. Allocated memory is still 192.9MB. Free memory was 133.6MB in the beginning and 89.6MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 11260.22ms. Allocated memory was 192.9MB in the beginning and 524.3MB in the end (delta: 331.4MB). Free memory was 88.8MB in the beginning and 277.2MB in the end (delta: -188.4MB). Peak memory consumption was 143.0MB. Max. memory is 16.1GB. * Witness Printer took 91.50ms. Allocated memory is still 524.3MB. Free memory was 277.2MB in the beginning and 272.5MB in the end (delta: 4.7MB). 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: 11.1s, OverallIterations: 16, TraceHistogramMax: 3, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1051 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 926 mSDsluCounter, 377 SdHoareTripleChecker+Invalid, 2.6s 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, 0.4s 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, 3.2s 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! [2024-11-22 21:34:23,406 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