./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 23:23:17,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 23:23:17,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 23:23:17,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 23:23:17,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 23:23:17,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 23:23:17,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 23:23:17,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 23:23:17,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 23:23:17,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 23:23:17,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 23:23:17,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 23:23:17,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 23:23:17,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 23:23:17,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 23:23:17,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 23:23:17,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 23:23:17,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 23:23:17,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 23:23:17,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 23:23:17,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 23:23:17,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 23:23:17,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 23:23:17,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 23:23:17,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 23:23:17,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 23:23:17,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 23:23:17,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 23:23:17,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 23:23:17,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 23:23:17,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 23:23:17,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 23:23:17,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 23:23:17,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 23:23:17,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 23:23:17,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 23:23:17,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 23:23:17,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 23:23:17,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 23:23:17,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 23:23:17,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 23:23:17,384 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 23:23:17,416 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 23:23:17,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 23:23:17,418 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 23:23:17,418 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 23:23:17,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 23:23:17,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 23:23:17,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 23:23:17,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 23:23:17,420 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 23:23:17,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 23:23:17,421 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 23:23:17,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 23:23:17,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 23:23:17,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 23:23:17,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 23:23:17,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 23:23:17,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 23:23:17,422 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 23:23:17,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 23:23:17,423 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 23:23:17,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 23:23:17,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 23:23:17,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 23:23:17,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 23:23:17,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 23:23:17,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 23:23:17,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 23:23:17,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 23:23:17,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 23:23:17,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 23:23:17,425 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 23:23:17,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 23:23:17,425 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 23:23:17,426 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 23:23:17,426 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 23:23:17,426 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 23:23:17,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 23:23:17,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 23:23:17,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 23:23:17,741 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 23:23:17,742 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 23:23:17,743 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2023-08-30 23:23:18,936 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 23:23:19,256 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 23:23:19,256 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2023-08-30 23:23:19,273 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80b8b9718/36c84eae73d746dc999da9e0d9dc9cf1/FLAGb388ce0fb [2023-08-30 23:23:19,285 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80b8b9718/36c84eae73d746dc999da9e0d9dc9cf1 [2023-08-30 23:23:19,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 23:23:19,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 23:23:19,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 23:23:19,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 23:23:19,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 23:23:19,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:23:19" (1/1) ... [2023-08-30 23:23:19,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@212ab0b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:19, skipping insertion in model container [2023-08-30 23:23:19,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:23:19" (1/1) ... [2023-08-30 23:23:19,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 23:23:19,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 23:23:20,070 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2023-08-30 23:23:20,116 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 23:23:20,129 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 23:23:20,171 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2023-08-30 23:23:20,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 23:23:20,331 INFO L208 MainTranslator]: Completed translation [2023-08-30 23:23:20,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:20 WrapperNode [2023-08-30 23:23:20,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 23:23:20,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 23:23:20,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 23:23:20,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 23:23:20,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:20" (1/1) ... [2023-08-30 23:23:20,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:20" (1/1) ... [2023-08-30 23:23:20,406 INFO L138 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 205 [2023-08-30 23:23:20,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 23:23:20,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 23:23:20,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 23:23:20,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 23:23:20,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:20" (1/1) ... [2023-08-30 23:23:20,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:20" (1/1) ... [2023-08-30 23:23:20,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:20" (1/1) ... [2023-08-30 23:23:20,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:20" (1/1) ... [2023-08-30 23:23:20,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:20" (1/1) ... [2023-08-30 23:23:20,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:20" (1/1) ... [2023-08-30 23:23:20,472 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:20" (1/1) ... [2023-08-30 23:23:20,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:20" (1/1) ... [2023-08-30 23:23:20,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 23:23:20,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 23:23:20,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 23:23:20,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 23:23:20,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:20" (1/1) ... [2023-08-30 23:23:20,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 23:23:20,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:23:20,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 23:23:20,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 23:23:20,567 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2023-08-30 23:23:20,567 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2023-08-30 23:23:20,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 23:23:20,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 23:23:20,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2023-08-30 23:23:20,568 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2023-08-30 23:23:20,568 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 23:23:20,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 23:23:20,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 23:23:20,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 23:23:20,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 23:23:20,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 23:23:20,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 23:23:20,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 23:23:20,570 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 23:23:20,891 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 23:23:20,893 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 23:23:21,096 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 23:23:21,118 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 23:23:21,118 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-30 23:23:21,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:23:21 BoogieIcfgContainer [2023-08-30 23:23:21,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 23:23:21,122 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 23:23:21,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 23:23:21,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 23:23:21,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 11:23:19" (1/3) ... [2023-08-30 23:23:21,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3015109f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:23:21, skipping insertion in model container [2023-08-30 23:23:21,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:23:20" (2/3) ... [2023-08-30 23:23:21,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3015109f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:23:21, skipping insertion in model container [2023-08-30 23:23:21,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:23:21" (3/3) ... [2023-08-30 23:23:21,136 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2023-08-30 23:23:21,142 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 23:23:21,165 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 23:23:21,165 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 23:23:21,165 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 23:23:21,332 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-08-30 23:23:21,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 302 transitions, 634 flow [2023-08-30 23:23:21,542 INFO L130 PetriNetUnfolder]: 33/309 cut-off events. [2023-08-30 23:23:21,542 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 23:23:21,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 309 events. 33/309 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 730 event pairs, 0 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 209. Up to 11 conditions per place. [2023-08-30 23:23:21,556 INFO L82 GeneralOperation]: Start removeDead. Operand has 272 places, 302 transitions, 634 flow [2023-08-30 23:23:21,568 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 192 places, 207 transitions, 431 flow [2023-08-30 23:23:21,572 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 23:23:21,580 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 192 places, 207 transitions, 431 flow [2023-08-30 23:23:21,584 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 192 places, 207 transitions, 431 flow [2023-08-30 23:23:21,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 207 transitions, 431 flow [2023-08-30 23:23:21,647 INFO L130 PetriNetUnfolder]: 31/296 cut-off events. [2023-08-30 23:23:21,648 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 23:23:21,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 296 events. 31/296 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 659 event pairs, 0 based on Foata normal form. 0/253 useless extension candidates. Maximal degree in co-relation 209. Up to 11 conditions per place. [2023-08-30 23:23:21,659 INFO L119 LiptonReduction]: Number of co-enabled transitions 8910 [2023-08-30 23:23:27,280 INFO L134 LiptonReduction]: Checked pairs total: 11799 [2023-08-30 23:23:27,280 INFO L136 LiptonReduction]: Total number of compositions: 249 [2023-08-30 23:23:27,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 23:23:27,298 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@12148bc8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 23:23:27,298 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-30 23:23:27,299 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 23:23:27,299 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 23:23:27,299 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:23:27,300 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 23:23:27,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-08-30 23:23:27,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:23:27,305 INFO L85 PathProgramCache]: Analyzing trace with hash 932, now seen corresponding path program 1 times [2023-08-30 23:23:27,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:23:27,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436621619] [2023-08-30 23:23:27,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:23:27,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:23:27,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:23:27,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 23:23:27,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:23:27,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436621619] [2023-08-30 23:23:27,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436621619] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:23:27,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 23:23:27,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 23:23:27,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659872120] [2023-08-30 23:23:27,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:23:27,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 23:23:27,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:23:27,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 23:23:27,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 23:23:27,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 551 [2023-08-30 23:23:27,586 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 36 transitions, 89 flow. Second operand has 2 states, 2 states have (on average 272.5) internal successors, (545), 2 states have internal predecessors, (545), 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) [2023-08-30 23:23:27,586 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:23:27,586 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 551 [2023-08-30 23:23:27,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:23:27,717 INFO L130 PetriNetUnfolder]: 255/399 cut-off events. [2023-08-30 23:23:27,717 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-08-30 23:23:27,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 813 conditions, 399 events. 255/399 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1400 event pairs, 131 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 685. Up to 389 conditions per place. [2023-08-30 23:23:27,720 INFO L137 encePairwiseOnDemand]: 547/551 looper letters, 28 selfloop transitions, 0 changer transitions 0/32 dead transitions. [2023-08-30 23:23:27,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 32 transitions, 137 flow [2023-08-30 23:23:27,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 23:23:27,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 23:23:27,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 576 transitions. [2023-08-30 23:23:27,741 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5226860254083484 [2023-08-30 23:23:27,742 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 576 transitions. [2023-08-30 23:23:27,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 576 transitions. [2023-08-30 23:23:27,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:23:27,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 576 transitions. [2023-08-30 23:23:27,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 288.0) internal successors, (576), 2 states have internal predecessors, (576), 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) [2023-08-30 23:23:27,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 551.0) internal successors, (1653), 3 states have internal predecessors, (1653), 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) [2023-08-30 23:23:27,760 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 551.0) internal successors, (1653), 3 states have internal predecessors, (1653), 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) [2023-08-30 23:23:27,762 INFO L175 Difference]: Start difference. First operand has 34 places, 36 transitions, 89 flow. Second operand 2 states and 576 transitions. [2023-08-30 23:23:27,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 32 transitions, 137 flow [2023-08-30 23:23:27,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 32 transitions, 133 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 23:23:27,767 INFO L231 Difference]: Finished difference. Result has 30 places, 32 transitions, 77 flow [2023-08-30 23:23:27,769 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=551, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=77, PETRI_PLACES=30, PETRI_TRANSITIONS=32} [2023-08-30 23:23:27,772 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -4 predicate places. [2023-08-30 23:23:27,772 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 32 transitions, 77 flow [2023-08-30 23:23:27,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 272.5) internal successors, (545), 2 states have internal predecessors, (545), 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) [2023-08-30 23:23:27,773 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:23:27,773 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 23:23:27,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 23:23:27,775 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-08-30 23:23:27,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:23:27,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1677484423, now seen corresponding path program 1 times [2023-08-30 23:23:27,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:23:27,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103628093] [2023-08-30 23:23:27,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:23:27,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:23:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:23:28,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 23:23:28,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:23:28,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103628093] [2023-08-30 23:23:28,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103628093] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:23:28,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 23:23:28,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 23:23:28,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019593667] [2023-08-30 23:23:28,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:23:28,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 23:23:28,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:23:28,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 23:23:28,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 23:23:28,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 551 [2023-08-30 23:23:28,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 32 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 262.5) internal successors, (1050), 4 states have internal predecessors, (1050), 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) [2023-08-30 23:23:28,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:23:28,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 551 [2023-08-30 23:23:28,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:23:28,286 INFO L130 PetriNetUnfolder]: 476/744 cut-off events. [2023-08-30 23:23:28,286 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-30 23:23:28,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1500 conditions, 744 events. 476/744 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2675 event pairs, 113 based on Foata normal form. 0/424 useless extension candidates. Maximal degree in co-relation 1496. Up to 308 conditions per place. [2023-08-30 23:23:28,290 INFO L137 encePairwiseOnDemand]: 542/551 looper letters, 52 selfloop transitions, 11 changer transitions 0/67 dead transitions. [2023-08-30 23:23:28,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 67 transitions, 283 flow [2023-08-30 23:23:28,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 23:23:28,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 23:23:28,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1372 transitions. [2023-08-30 23:23:28,294 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4980036297640653 [2023-08-30 23:23:28,294 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1372 transitions. [2023-08-30 23:23:28,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1372 transitions. [2023-08-30 23:23:28,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:23:28,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1372 transitions. [2023-08-30 23:23:28,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 274.4) internal successors, (1372), 5 states have internal predecessors, (1372), 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) [2023-08-30 23:23:28,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 551.0) internal successors, (3306), 6 states have internal predecessors, (3306), 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) [2023-08-30 23:23:28,305 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 551.0) internal successors, (3306), 6 states have internal predecessors, (3306), 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) [2023-08-30 23:23:28,306 INFO L175 Difference]: Start difference. First operand has 30 places, 32 transitions, 77 flow. Second operand 5 states and 1372 transitions. [2023-08-30 23:23:28,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 67 transitions, 283 flow [2023-08-30 23:23:28,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 67 transitions, 283 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 23:23:28,309 INFO L231 Difference]: Finished difference. Result has 38 places, 41 transitions, 161 flow [2023-08-30 23:23:28,309 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=551, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=161, PETRI_PLACES=38, PETRI_TRANSITIONS=41} [2023-08-30 23:23:28,310 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 4 predicate places. [2023-08-30 23:23:28,310 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 41 transitions, 161 flow [2023-08-30 23:23:28,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 262.5) internal successors, (1050), 4 states have internal predecessors, (1050), 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) [2023-08-30 23:23:28,311 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:23:28,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:23:28,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 23:23:28,312 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-08-30 23:23:28,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:23:28,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1458684387, now seen corresponding path program 1 times [2023-08-30 23:23:28,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:23:28,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629918245] [2023-08-30 23:23:28,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:23:28,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:23:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:23:28,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 23:23:28,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:23:28,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629918245] [2023-08-30 23:23:28,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629918245] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:23:28,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 23:23:28,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 23:23:28,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901901993] [2023-08-30 23:23:28,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:23:28,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 23:23:28,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:23:28,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 23:23:28,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 23:23:28,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 551 [2023-08-30 23:23:28,495 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 41 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 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) [2023-08-30 23:23:28,495 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:23:28,495 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 551 [2023-08-30 23:23:28,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:23:28,650 INFO L130 PetriNetUnfolder]: 536/820 cut-off events. [2023-08-30 23:23:28,651 INFO L131 PetriNetUnfolder]: For 301/301 co-relation queries the response was YES. [2023-08-30 23:23:28,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2183 conditions, 820 events. 536/820 cut-off events. For 301/301 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2780 event pairs, 129 based on Foata normal form. 36/662 useless extension candidates. Maximal degree in co-relation 2175. Up to 427 conditions per place. [2023-08-30 23:23:28,656 INFO L137 encePairwiseOnDemand]: 543/551 looper letters, 49 selfloop transitions, 11 changer transitions 0/64 dead transitions. [2023-08-30 23:23:28,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 64 transitions, 370 flow [2023-08-30 23:23:28,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 23:23:28,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 23:23:28,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 840 transitions. [2023-08-30 23:23:28,659 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5081669691470054 [2023-08-30 23:23:28,659 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 840 transitions. [2023-08-30 23:23:28,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 840 transitions. [2023-08-30 23:23:28,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:23:28,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 840 transitions. [2023-08-30 23:23:28,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 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) [2023-08-30 23:23:28,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 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) [2023-08-30 23:23:28,665 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 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) [2023-08-30 23:23:28,665 INFO L175 Difference]: Start difference. First operand has 38 places, 41 transitions, 161 flow. Second operand 3 states and 840 transitions. [2023-08-30 23:23:28,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 64 transitions, 370 flow [2023-08-30 23:23:28,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 64 transitions, 370 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 23:23:28,671 INFO L231 Difference]: Finished difference. Result has 42 places, 49 transitions, 271 flow [2023-08-30 23:23:28,672 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=551, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=42, PETRI_TRANSITIONS=49} [2023-08-30 23:23:28,673 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 8 predicate places. [2023-08-30 23:23:28,673 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 49 transitions, 271 flow [2023-08-30 23:23:28,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 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) [2023-08-30 23:23:28,674 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:23:28,674 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:23:28,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 23:23:28,674 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-08-30 23:23:28,675 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:23:28,675 INFO L85 PathProgramCache]: Analyzing trace with hash -2014463062, now seen corresponding path program 1 times [2023-08-30 23:23:28,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:23:28,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061953364] [2023-08-30 23:23:28,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:23:28,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:23:28,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:23:28,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 23:23:28,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:23:28,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061953364] [2023-08-30 23:23:28,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061953364] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:23:28,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 23:23:28,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 23:23:28,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229085511] [2023-08-30 23:23:28,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:23:28,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 23:23:28,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:23:28,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 23:23:28,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 23:23:28,791 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 551 [2023-08-30 23:23:28,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 49 transitions, 271 flow. Second operand has 3 states, 3 states have (on average 260.6666666666667) internal successors, (782), 3 states have internal predecessors, (782), 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) [2023-08-30 23:23:28,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:23:28,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 551 [2023-08-30 23:23:28,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:23:28,930 INFO L130 PetriNetUnfolder]: 442/698 cut-off events. [2023-08-30 23:23:28,930 INFO L131 PetriNetUnfolder]: For 973/973 co-relation queries the response was YES. [2023-08-30 23:23:28,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2115 conditions, 698 events. 442/698 cut-off events. For 973/973 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2453 event pairs, 137 based on Foata normal form. 28/594 useless extension candidates. Maximal degree in co-relation 2105. Up to 470 conditions per place. [2023-08-30 23:23:28,935 INFO L137 encePairwiseOnDemand]: 545/551 looper letters, 45 selfloop transitions, 5 changer transitions 1/54 dead transitions. [2023-08-30 23:23:28,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 54 transitions, 385 flow [2023-08-30 23:23:28,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 23:23:28,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 23:23:28,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2023-08-30 23:23:28,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49122807017543857 [2023-08-30 23:23:28,938 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 812 transitions. [2023-08-30 23:23:28,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 812 transitions. [2023-08-30 23:23:28,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:23:28,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 812 transitions. [2023-08-30 23:23:28,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.6666666666667) internal successors, (812), 3 states have internal predecessors, (812), 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) [2023-08-30 23:23:28,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 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) [2023-08-30 23:23:28,946 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 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) [2023-08-30 23:23:28,946 INFO L175 Difference]: Start difference. First operand has 42 places, 49 transitions, 271 flow. Second operand 3 states and 812 transitions. [2023-08-30 23:23:28,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 54 transitions, 385 flow [2023-08-30 23:23:28,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 54 transitions, 359 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 23:23:28,951 INFO L231 Difference]: Finished difference. Result has 41 places, 46 transitions, 253 flow [2023-08-30 23:23:28,951 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=551, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=253, PETRI_PLACES=41, PETRI_TRANSITIONS=46} [2023-08-30 23:23:28,952 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 7 predicate places. [2023-08-30 23:23:28,952 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 46 transitions, 253 flow [2023-08-30 23:23:28,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 260.6666666666667) internal successors, (782), 3 states have internal predecessors, (782), 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) [2023-08-30 23:23:28,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:23:28,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:23:28,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 23:23:28,954 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-08-30 23:23:28,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:23:28,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1636425687, now seen corresponding path program 1 times [2023-08-30 23:23:28,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:23:28,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813371196] [2023-08-30 23:23:28,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:23:28,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:23:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:23:29,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 23:23:29,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:23:29,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813371196] [2023-08-30 23:23:29,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813371196] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:23:29,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 23:23:29,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 23:23:29,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27889329] [2023-08-30 23:23:29,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:23:29,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 23:23:29,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:23:29,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 23:23:29,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 23:23:29,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 551 [2023-08-30 23:23:29,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 46 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 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) [2023-08-30 23:23:29,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:23:29,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 551 [2023-08-30 23:23:29,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:23:29,117 INFO L130 PetriNetUnfolder]: 244/392 cut-off events. [2023-08-30 23:23:29,117 INFO L131 PetriNetUnfolder]: For 481/481 co-relation queries the response was YES. [2023-08-30 23:23:29,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1135 conditions, 392 events. 244/392 cut-off events. For 481/481 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1109 event pairs, 88 based on Foata normal form. 24/360 useless extension candidates. Maximal degree in co-relation 1125. Up to 308 conditions per place. [2023-08-30 23:23:29,119 INFO L137 encePairwiseOnDemand]: 548/551 looper letters, 36 selfloop transitions, 2 changer transitions 2/43 dead transitions. [2023-08-30 23:23:29,119 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 43 transitions, 301 flow [2023-08-30 23:23:29,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 23:23:29,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 23:23:29,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 843 transitions. [2023-08-30 23:23:29,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5099818511796733 [2023-08-30 23:23:29,122 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 843 transitions. [2023-08-30 23:23:29,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 843 transitions. [2023-08-30 23:23:29,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:23:29,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 843 transitions. [2023-08-30 23:23:29,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 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) [2023-08-30 23:23:29,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 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) [2023-08-30 23:23:29,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 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) [2023-08-30 23:23:29,129 INFO L175 Difference]: Start difference. First operand has 41 places, 46 transitions, 253 flow. Second operand 3 states and 843 transitions. [2023-08-30 23:23:29,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 43 transitions, 301 flow [2023-08-30 23:23:29,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 43 transitions, 246 flow, removed 17 selfloop flow, removed 4 redundant places. [2023-08-30 23:23:29,132 INFO L231 Difference]: Finished difference. Result has 38 places, 35 transitions, 154 flow [2023-08-30 23:23:29,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=551, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=38, PETRI_TRANSITIONS=35} [2023-08-30 23:23:29,133 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 4 predicate places. [2023-08-30 23:23:29,133 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 35 transitions, 154 flow [2023-08-30 23:23:29,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 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) [2023-08-30 23:23:29,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:23:29,134 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:23:29,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 23:23:29,134 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-08-30 23:23:29,135 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:23:29,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1375048064, now seen corresponding path program 1 times [2023-08-30 23:23:29,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:23:29,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740590245] [2023-08-30 23:23:29,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:23:29,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:23:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:23:29,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 23:23:29,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:23:29,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740590245] [2023-08-30 23:23:29,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740590245] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:23:29,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 23:23:29,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 23:23:29,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636358945] [2023-08-30 23:23:29,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:23:29,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 23:23:29,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:23:29,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 23:23:29,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 23:23:29,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 551 [2023-08-30 23:23:29,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 35 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 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) [2023-08-30 23:23:29,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:23:29,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 551 [2023-08-30 23:23:29,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:23:29,309 INFO L130 PetriNetUnfolder]: 236/374 cut-off events. [2023-08-30 23:23:29,309 INFO L131 PetriNetUnfolder]: For 208/208 co-relation queries the response was YES. [2023-08-30 23:23:29,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 976 conditions, 374 events. 236/374 cut-off events. For 208/208 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1009 event pairs, 116 based on Foata normal form. 1/319 useless extension candidates. Maximal degree in co-relation 966. Up to 361 conditions per place. [2023-08-30 23:23:29,310 INFO L137 encePairwiseOnDemand]: 549/551 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2023-08-30 23:23:29,310 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 34 transitions, 214 flow [2023-08-30 23:23:29,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 23:23:29,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 23:23:29,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 814 transitions. [2023-08-30 23:23:29,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4924379915305505 [2023-08-30 23:23:29,313 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 814 transitions. [2023-08-30 23:23:29,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 814 transitions. [2023-08-30 23:23:29,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:23:29,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 814 transitions. [2023-08-30 23:23:29,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 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) [2023-08-30 23:23:29,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 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) [2023-08-30 23:23:29,319 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 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) [2023-08-30 23:23:29,319 INFO L175 Difference]: Start difference. First operand has 38 places, 35 transitions, 154 flow. Second operand 3 states and 814 transitions. [2023-08-30 23:23:29,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 34 transitions, 214 flow [2023-08-30 23:23:29,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 34 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 23:23:29,321 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2023-08-30 23:23:29,321 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=551, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2023-08-30 23:23:29,322 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 2 predicate places. [2023-08-30 23:23:29,322 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2023-08-30 23:23:29,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 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) [2023-08-30 23:23:29,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2023-08-30 23:23:29,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 12 remaining) [2023-08-30 23:23:29,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 12 remaining) [2023-08-30 23:23:29,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 12 remaining) [2023-08-30 23:23:29,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2023-08-30 23:23:29,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2023-08-30 23:23:29,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 12 remaining) [2023-08-30 23:23:29,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2023-08-30 23:23:29,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 12 remaining) [2023-08-30 23:23:29,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 12 remaining) [2023-08-30 23:23:29,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 12 remaining) [2023-08-30 23:23:29,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-08-30 23:23:29,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 23:23:29,328 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-08-30 23:23:29,332 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 23:23:29,332 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 23:23:29,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 11:23:29 BasicIcfg [2023-08-30 23:23:29,335 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 23:23:29,335 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 23:23:29,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 23:23:29,336 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 23:23:29,336 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:23:21" (3/4) ... [2023-08-30 23:23:29,338 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 23:23:29,343 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2023-08-30 23:23:29,343 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2023-08-30 23:23:29,347 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-08-30 23:23:29,347 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 23:23:29,348 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 23:23:29,348 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 23:23:29,382 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 23:23:29,382 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 23:23:29,383 INFO L158 Benchmark]: Toolchain (without parser) took 10093.87ms. Allocated memory was 60.8MB in the beginning and 130.0MB in the end (delta: 69.2MB). Free memory was 26.5MB in the beginning and 77.7MB in the end (delta: -51.2MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2023-08-30 23:23:29,383 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory was 28.7MB in the beginning and 28.6MB in the end (delta: 54.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 23:23:29,383 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1042.23ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 26.3MB in the beginning and 36.2MB in the end (delta: -9.9MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2023-08-30 23:23:29,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.22ms. Allocated memory is still 73.4MB. Free memory was 36.2MB in the beginning and 32.6MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 23:23:29,384 INFO L158 Benchmark]: Boogie Preprocessor took 74.90ms. Allocated memory is still 73.4MB. Free memory was 32.6MB in the beginning and 46.0MB in the end (delta: -13.4MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2023-08-30 23:23:29,384 INFO L158 Benchmark]: RCFGBuilder took 634.36ms. Allocated memory is still 73.4MB. Free memory was 45.6MB in the beginning and 38.5MB in the end (delta: 7.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-30 23:23:29,384 INFO L158 Benchmark]: TraceAbstraction took 8213.04ms. Allocated memory was 73.4MB in the beginning and 130.0MB in the end (delta: 56.6MB). Free memory was 37.9MB in the beginning and 80.8MB in the end (delta: -43.0MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. [2023-08-30 23:23:29,385 INFO L158 Benchmark]: Witness Printer took 46.85ms. Allocated memory is still 130.0MB. Free memory was 80.8MB in the beginning and 77.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 23:23:29,386 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory was 28.7MB in the beginning and 28.6MB in the end (delta: 54.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1042.23ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 26.3MB in the beginning and 36.2MB in the end (delta: -9.9MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.22ms. Allocated memory is still 73.4MB. Free memory was 36.2MB in the beginning and 32.6MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.90ms. Allocated memory is still 73.4MB. Free memory was 32.6MB in the beginning and 46.0MB in the end (delta: -13.4MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * RCFGBuilder took 634.36ms. Allocated memory is still 73.4MB. Free memory was 45.6MB in the beginning and 38.5MB in the end (delta: 7.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8213.04ms. Allocated memory was 73.4MB in the beginning and 130.0MB in the end (delta: 56.6MB). Free memory was 37.9MB in the beginning and 80.8MB in the end (delta: -43.0MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB. * Witness Printer took 46.85ms. Allocated memory is still 130.0MB. Free memory was 80.8MB in the beginning and 77.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.7s, 192 PlacesBefore, 34 PlacesAfterwards, 207 TransitionsBefore, 36 TransitionsAfterwards, 8910 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 134 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 44 ConcurrentYvCompositions, 13 ChoiceCompositions, 249 TotalNumberOfCompositions, 11799 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9610, independent: 9467, independent conditional: 0, independent unconditional: 9467, dependent: 143, dependent conditional: 0, dependent unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5344, independent: 5296, independent conditional: 0, independent unconditional: 5296, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9610, independent: 4171, independent conditional: 0, independent unconditional: 4171, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 5344, unknown conditional: 0, unknown unconditional: 5344] , Statistics on independence cache: Total cache size (in pairs): 118, Positive cache size: 105, Positive conditional cache size: 0, Positive unconditional cache size: 105, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 297 locations, 12 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: 8.0s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 207 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 118 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 520 IncrementalHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 3 mSDtfsCounter, 520 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=271occurred in iteration=3, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 52 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 2/2 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 23:23:29,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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