./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/bin/uautomizer-QkZJyEgLgS --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 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 03:50:51,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:50:51,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:50:51,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:50:51,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:50:51,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:50:51,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:50:51,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:50:51,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:50:51,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:50:51,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:50:51,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:50:51,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:50:51,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:50:51,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:50:51,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:50:51,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:50:51,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:50:51,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:50:51,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:50:51,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:50:51,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:50:51,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:50:51,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:50:51,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:50:51,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:50:51,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:50:51,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:50:51,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:50:51,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:50:51,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:50:51,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:50:51,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:50:51,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:50:51,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:50:51,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:50:51,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:50:51,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:50:51,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:50:51,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:50:51,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:50:51,920 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-23 03:50:51,971 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:50:51,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:50:51,973 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:50:51,973 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:50:51,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:50:51,974 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:50:51,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:50:51,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:50:51,976 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:50:51,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:50:51,977 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:50:51,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:50:51,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:50:51,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:50:51,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:50:51,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:50:51,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:50:51,979 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:50:51,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:50:51,980 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:50:51,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:50:51,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:50:51,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:50:51,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:50:51,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:50:51,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:50:51,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:50:51,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:50:51,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:50:51,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:50:51,984 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:50:51,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:50:51,985 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:50:51,985 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:50:51,985 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2022-11-23 03:50:52,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:50:52,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:50:52,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:50:52,348 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:50:52,350 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:50:52,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2022-11-23 03:50:55,769 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:50:56,242 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:50:56,245 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2022-11-23 03:50:56,291 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/bin/uautomizer-QkZJyEgLgS/data/6180001fe/9d237d0603934ce481ea47733add0c40/FLAG700c8f572 [2022-11-23 03:50:56,311 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/bin/uautomizer-QkZJyEgLgS/data/6180001fe/9d237d0603934ce481ea47733add0c40 [2022-11-23 03:50:56,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:50:56,316 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:50:56,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:50:56,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:50:56,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:50:56,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:50:56" (1/1) ... [2022-11-23 03:50:56,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a2e1f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:56, skipping insertion in model container [2022-11-23 03:50:56,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:50:56" (1/1) ... [2022-11-23 03:50:56,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:50:56,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:50:57,325 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2022-11-23 03:50:57,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:50:57,444 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:50:57,592 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2022-11-23 03:50:57,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:50:57,809 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:50:57,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:57 WrapperNode [2022-11-23 03:50:57,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:50:57,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:50:57,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:50:57,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:50:57,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:57" (1/1) ... [2022-11-23 03:50:57,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:57" (1/1) ... [2022-11-23 03:50:57,948 INFO L138 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 201 [2022-11-23 03:50:57,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:50:57,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:50:57,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:50:57,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:50:57,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:57" (1/1) ... [2022-11-23 03:50:57,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:57" (1/1) ... [2022-11-23 03:50:57,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:57" (1/1) ... [2022-11-23 03:50:57,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:57" (1/1) ... [2022-11-23 03:50:57,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:57" (1/1) ... [2022-11-23 03:50:58,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:57" (1/1) ... [2022-11-23 03:50:58,019 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:57" (1/1) ... [2022-11-23 03:50:58,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:57" (1/1) ... [2022-11-23 03:50:58,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:50:58,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:50:58,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:50:58,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:50:58,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:57" (1/1) ... [2022-11-23 03:50:58,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:50:58,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:50:58,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:50:58,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:50:58,162 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2022-11-23 03:50:58,162 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2022-11-23 03:50:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:50:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:50:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2022-11-23 03:50:58,163 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2022-11-23 03:50:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 03:50:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:50:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 03:50:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:50:58,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:50:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:50:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:50:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:50:58,168 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:50:58,607 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:50:58,609 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:50:59,127 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:50:59,145 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:50:59,158 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 03:50:59,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:50:59 BoogieIcfgContainer [2022-11-23 03:50:59,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:50:59,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:50:59,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:50:59,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:50:59,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:50:56" (1/3) ... [2022-11-23 03:50:59,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e57e2b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:50:59, skipping insertion in model container [2022-11-23 03:50:59,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:50:57" (2/3) ... [2022-11-23 03:50:59,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e57e2b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:50:59, skipping insertion in model container [2022-11-23 03:50:59,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:50:59" (3/3) ... [2022-11-23 03:50:59,182 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2022-11-23 03:50:59,200 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 03:50:59,217 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:50:59,217 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-23 03:50:59,217 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:50:59,358 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-11-23 03:50:59,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 301 places, 331 transitions, 692 flow [2022-11-23 03:50:59,565 INFO L130 PetriNetUnfolder]: 33/341 cut-off events. [2022-11-23 03:50:59,566 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-23 03:50:59,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 341 events. 33/341 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 852 event pairs, 0 based on Foata normal form. 0/295 useless extension candidates. Maximal degree in co-relation 228. Up to 11 conditions per place. [2022-11-23 03:50:59,584 INFO L82 GeneralOperation]: Start removeDead. Operand has 301 places, 331 transitions, 692 flow [2022-11-23 03:50:59,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 212 places, 227 transitions, 471 flow [2022-11-23 03:50:59,607 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:50:59,647 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 212 places, 227 transitions, 471 flow [2022-11-23 03:50:59,658 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 212 places, 227 transitions, 471 flow [2022-11-23 03:50:59,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 212 places, 227 transitions, 471 flow [2022-11-23 03:50:59,740 INFO L130 PetriNetUnfolder]: 31/325 cut-off events. [2022-11-23 03:50:59,740 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-23 03:50:59,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 325 events. 31/325 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 735 event pairs, 0 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 228. Up to 11 conditions per place. [2022-11-23 03:50:59,753 INFO L119 LiptonReduction]: Number of co-enabled transitions 10804 [2022-11-23 03:51:10,021 INFO L134 LiptonReduction]: Checked pairs total: 12736 [2022-11-23 03:51:10,022 INFO L136 LiptonReduction]: Total number of compositions: 278 [2022-11-23 03:51:10,057 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:51:10,069 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;@22ccf1a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:51:10,069 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-23 03:51:10,071 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-23 03:51:10,072 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:51:10,073 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:51:10,074 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-23 03:51:10,075 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)] === [2022-11-23 03:51:10,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:51:10,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1010, now seen corresponding path program 1 times [2022-11-23 03:51:10,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:51:10,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911817418] [2022-11-23 03:51:10,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:51:10,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:51:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:51:10,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:51:10,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:51:10,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911817418] [2022-11-23 03:51:10,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911817418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:51:10,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:51:10,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 03:51:10,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271678770] [2022-11-23 03:51:10,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:51:10,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 03:51:10,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:51:10,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 03:51:10,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 03:51:10,530 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 609 [2022-11-23 03:51:10,538 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 36 transitions, 89 flow. Second operand has 2 states, 2 states have (on average 301.5) internal successors, (603), 2 states have internal predecessors, (603), 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) [2022-11-23 03:51:10,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:51:10,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 609 [2022-11-23 03:51:10,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:51:10,732 INFO L130 PetriNetUnfolder]: 233/377 cut-off events. [2022-11-23 03:51:10,733 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-23 03:51:10,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 769 conditions, 377 events. 233/377 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1396 event pairs, 131 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 649. Up to 367 conditions per place. [2022-11-23 03:51:10,741 INFO L137 encePairwiseOnDemand]: 604/609 looper letters, 27 selfloop transitions, 0 changer transitions 0/31 dead transitions. [2022-11-23 03:51:10,742 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 31 transitions, 133 flow [2022-11-23 03:51:10,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 03:51:10,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 03:51:10,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 634 transitions. [2022-11-23 03:51:10,774 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5205254515599343 [2022-11-23 03:51:10,775 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 634 transitions. [2022-11-23 03:51:10,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 634 transitions. [2022-11-23 03:51:10,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:51:10,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 634 transitions. [2022-11-23 03:51:10,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 317.0) internal successors, (634), 2 states have internal predecessors, (634), 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) [2022-11-23 03:51:10,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 609.0) internal successors, (1827), 3 states have internal predecessors, (1827), 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) [2022-11-23 03:51:10,807 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 609.0) internal successors, (1827), 3 states have internal predecessors, (1827), 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) [2022-11-23 03:51:10,809 INFO L175 Difference]: Start difference. First operand has 34 places, 36 transitions, 89 flow. Second operand 2 states and 634 transitions. [2022-11-23 03:51:10,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 31 transitions, 133 flow [2022-11-23 03:51:10,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 31 transitions, 129 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:51:10,818 INFO L231 Difference]: Finished difference. Result has 30 places, 31 transitions, 75 flow [2022-11-23 03:51:10,821 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=609, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=75, PETRI_PLACES=30, PETRI_TRANSITIONS=31} [2022-11-23 03:51:10,826 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, -4 predicate places. [2022-11-23 03:51:10,826 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 31 transitions, 75 flow [2022-11-23 03:51:10,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 301.5) internal successors, (603), 2 states have internal predecessors, (603), 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) [2022-11-23 03:51:10,828 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:51:10,828 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:51:10,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:51:10,830 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)] === [2022-11-23 03:51:10,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:51:10,843 INFO L85 PathProgramCache]: Analyzing trace with hash -247915227, now seen corresponding path program 1 times [2022-11-23 03:51:10,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:51:10,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342861258] [2022-11-23 03:51:10,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:51:10,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:51:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:51:11,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:51:11,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:51:11,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342861258] [2022-11-23 03:51:11,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342861258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:51:11,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:51:11,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:51:11,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126348054] [2022-11-23 03:51:11,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:51:11,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:51:11,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:51:11,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:51:11,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:51:11,329 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 609 [2022-11-23 03:51:11,331 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 31 transitions, 75 flow. Second operand has 4 states, 4 states have (on average 291.5) internal successors, (1166), 4 states have internal predecessors, (1166), 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) [2022-11-23 03:51:11,331 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:51:11,331 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 609 [2022-11-23 03:51:11,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:51:11,694 INFO L130 PetriNetUnfolder]: 444/712 cut-off events. [2022-11-23 03:51:11,695 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-23 03:51:11,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1436 conditions, 712 events. 444/712 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2631 event pairs, 109 based on Foata normal form. 0/422 useless extension candidates. Maximal degree in co-relation 1432. Up to 306 conditions per place. [2022-11-23 03:51:11,701 INFO L137 encePairwiseOnDemand]: 599/609 looper letters, 48 selfloop transitions, 14 changer transitions 0/66 dead transitions. [2022-11-23 03:51:11,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 66 transitions, 279 flow [2022-11-23 03:51:11,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:51:11,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 03:51:11,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1514 transitions. [2022-11-23 03:51:11,707 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4972085385878489 [2022-11-23 03:51:11,707 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1514 transitions. [2022-11-23 03:51:11,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1514 transitions. [2022-11-23 03:51:11,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:51:11,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1514 transitions. [2022-11-23 03:51:11,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 302.8) internal successors, (1514), 5 states have internal predecessors, (1514), 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) [2022-11-23 03:51:11,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 609.0) internal successors, (3654), 6 states have internal predecessors, (3654), 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) [2022-11-23 03:51:11,725 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 609.0) internal successors, (3654), 6 states have internal predecessors, (3654), 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) [2022-11-23 03:51:11,725 INFO L175 Difference]: Start difference. First operand has 30 places, 31 transitions, 75 flow. Second operand 5 states and 1514 transitions. [2022-11-23 03:51:11,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 66 transitions, 279 flow [2022-11-23 03:51:11,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 66 transitions, 279 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 03:51:11,731 INFO L231 Difference]: Finished difference. Result has 38 places, 43 transitions, 179 flow [2022-11-23 03:51:11,732 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=609, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=179, PETRI_PLACES=38, PETRI_TRANSITIONS=43} [2022-11-23 03:51:11,733 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 4 predicate places. [2022-11-23 03:51:11,733 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 43 transitions, 179 flow [2022-11-23 03:51:11,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 291.5) internal successors, (1166), 4 states have internal predecessors, (1166), 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) [2022-11-23 03:51:11,735 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:51:11,735 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:51:11,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:51:11,736 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)] === [2022-11-23 03:51:11,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:51:11,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1992682748, now seen corresponding path program 1 times [2022-11-23 03:51:11,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:51:11,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410154618] [2022-11-23 03:51:11,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:51:11,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:51:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:51:11,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:51:11,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:51:11,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410154618] [2022-11-23 03:51:11,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410154618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:51:11,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:51:11,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:51:11,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021101574] [2022-11-23 03:51:11,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:51:11,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:51:11,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:51:11,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:51:11,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:51:11,996 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 609 [2022-11-23 03:51:11,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 43 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 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) [2022-11-23 03:51:11,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:51:11,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 609 [2022-11-23 03:51:11,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:51:12,208 INFO L130 PetriNetUnfolder]: 381/611 cut-off events. [2022-11-23 03:51:12,208 INFO L131 PetriNetUnfolder]: For 197/197 co-relation queries the response was YES. [2022-11-23 03:51:12,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1760 conditions, 611 events. 381/611 cut-off events. For 197/197 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2131 event pairs, 133 based on Foata normal form. 36/493 useless extension candidates. Maximal degree in co-relation 1752. Up to 470 conditions per place. [2022-11-23 03:51:12,214 INFO L137 encePairwiseOnDemand]: 603/609 looper letters, 48 selfloop transitions, 9 changer transitions 2/63 dead transitions. [2022-11-23 03:51:12,214 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 63 transitions, 376 flow [2022-11-23 03:51:12,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:51:12,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:51:12,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 920 transitions. [2022-11-23 03:51:12,218 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5035577449370553 [2022-11-23 03:51:12,218 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 920 transitions. [2022-11-23 03:51:12,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 920 transitions. [2022-11-23 03:51:12,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:51:12,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 920 transitions. [2022-11-23 03:51:12,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 306.6666666666667) internal successors, (920), 3 states have internal predecessors, (920), 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) [2022-11-23 03:51:12,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 609.0) internal successors, (2436), 4 states have internal predecessors, (2436), 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) [2022-11-23 03:51:12,229 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 609.0) internal successors, (2436), 4 states have internal predecessors, (2436), 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) [2022-11-23 03:51:12,229 INFO L175 Difference]: Start difference. First operand has 38 places, 43 transitions, 179 flow. Second operand 3 states and 920 transitions. [2022-11-23 03:51:12,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 63 transitions, 376 flow [2022-11-23 03:51:12,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 63 transitions, 376 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 03:51:12,234 INFO L231 Difference]: Finished difference. Result has 41 places, 48 transitions, 246 flow [2022-11-23 03:51:12,235 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=609, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=41, PETRI_TRANSITIONS=48} [2022-11-23 03:51:12,235 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 7 predicate places. [2022-11-23 03:51:12,236 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 48 transitions, 246 flow [2022-11-23 03:51:12,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 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) [2022-11-23 03:51:12,237 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:51:12,237 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:51:12,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:51:12,238 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)] === [2022-11-23 03:51:12,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:51:12,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1632380594, now seen corresponding path program 1 times [2022-11-23 03:51:12,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:51:12,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523578305] [2022-11-23 03:51:12,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:51:12,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:51:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:51:12,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:51:12,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:51:12,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523578305] [2022-11-23 03:51:12,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523578305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:51:12,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:51:12,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:51:12,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277557766] [2022-11-23 03:51:12,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:51:12,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:51:12,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:51:12,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:51:12,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:51:12,383 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 609 [2022-11-23 03:51:12,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 48 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 289.6666666666667) internal successors, (869), 3 states have internal predecessors, (869), 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) [2022-11-23 03:51:12,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:51:12,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 609 [2022-11-23 03:51:12,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:51:12,558 INFO L130 PetriNetUnfolder]: 321/531 cut-off events. [2022-11-23 03:51:12,558 INFO L131 PetriNetUnfolder]: For 729/729 co-relation queries the response was YES. [2022-11-23 03:51:12,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1647 conditions, 531 events. 321/531 cut-off events. For 729/729 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1922 event pairs, 105 based on Foata normal form. 20/496 useless extension candidates. Maximal degree in co-relation 1637. Up to 381 conditions per place. [2022-11-23 03:51:12,563 INFO L137 encePairwiseOnDemand]: 603/609 looper letters, 43 selfloop transitions, 3 changer transitions 2/51 dead transitions. [2022-11-23 03:51:12,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 343 flow [2022-11-23 03:51:12,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:51:12,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:51:12,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 897 transitions. [2022-11-23 03:51:12,567 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4909688013136289 [2022-11-23 03:51:12,567 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 897 transitions. [2022-11-23 03:51:12,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 897 transitions. [2022-11-23 03:51:12,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:51:12,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 897 transitions. [2022-11-23 03:51:12,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 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) [2022-11-23 03:51:12,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 609.0) internal successors, (2436), 4 states have internal predecessors, (2436), 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) [2022-11-23 03:51:12,578 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 609.0) internal successors, (2436), 4 states have internal predecessors, (2436), 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) [2022-11-23 03:51:12,578 INFO L175 Difference]: Start difference. First operand has 41 places, 48 transitions, 246 flow. Second operand 3 states and 897 transitions. [2022-11-23 03:51:12,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 343 flow [2022-11-23 03:51:12,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 51 transitions, 329 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-23 03:51:12,584 INFO L231 Difference]: Finished difference. Result has 41 places, 45 transitions, 233 flow [2022-11-23 03:51:12,585 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=609, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=41, PETRI_TRANSITIONS=45} [2022-11-23 03:51:12,585 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 7 predicate places. [2022-11-23 03:51:12,586 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 45 transitions, 233 flow [2022-11-23 03:51:12,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.6666666666667) internal successors, (869), 3 states have internal predecessors, (869), 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) [2022-11-23 03:51:12,587 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:51:12,587 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:51:12,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:51:12,587 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)] === [2022-11-23 03:51:12,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:51:12,588 INFO L85 PathProgramCache]: Analyzing trace with hash 587359226, now seen corresponding path program 1 times [2022-11-23 03:51:12,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:51:12,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360184437] [2022-11-23 03:51:12,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:51:12,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:51:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:51:12,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:51:12,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:51:12,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360184437] [2022-11-23 03:51:12,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360184437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:51:12,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:51:12,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:51:12,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491621147] [2022-11-23 03:51:12,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:51:12,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:51:12,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:51:12,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:51:12,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:51:12,714 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 609 [2022-11-23 03:51:12,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 45 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 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) [2022-11-23 03:51:12,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:51:12,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 609 [2022-11-23 03:51:12,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:51:12,858 INFO L130 PetriNetUnfolder]: 155/273 cut-off events. [2022-11-23 03:51:12,858 INFO L131 PetriNetUnfolder]: For 280/280 co-relation queries the response was YES. [2022-11-23 03:51:12,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 273 events. 155/273 cut-off events. For 280/280 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 804 event pairs, 23 based on Foata normal form. 16/279 useless extension candidates. Maximal degree in co-relation 816. Up to 202 conditions per place. [2022-11-23 03:51:12,860 INFO L137 encePairwiseOnDemand]: 604/609 looper letters, 35 selfloop transitions, 3 changer transitions 5/46 dead transitions. [2022-11-23 03:51:12,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 296 flow [2022-11-23 03:51:12,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:51:12,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:51:12,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 935 transitions. [2022-11-23 03:51:12,864 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.511767925561029 [2022-11-23 03:51:12,864 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 935 transitions. [2022-11-23 03:51:12,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 935 transitions. [2022-11-23 03:51:12,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:51:12,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 935 transitions. [2022-11-23 03:51:12,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 311.6666666666667) internal successors, (935), 3 states have internal predecessors, (935), 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) [2022-11-23 03:51:12,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 609.0) internal successors, (2436), 4 states have internal predecessors, (2436), 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) [2022-11-23 03:51:12,875 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 609.0) internal successors, (2436), 4 states have internal predecessors, (2436), 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) [2022-11-23 03:51:12,875 INFO L175 Difference]: Start difference. First operand has 41 places, 45 transitions, 233 flow. Second operand 3 states and 935 transitions. [2022-11-23 03:51:12,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 296 flow [2022-11-23 03:51:12,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 46 transitions, 250 flow, removed 12 selfloop flow, removed 4 redundant places. [2022-11-23 03:51:12,879 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 143 flow [2022-11-23 03:51:12,879 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=609, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2022-11-23 03:51:12,880 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 5 predicate places. [2022-11-23 03:51:12,880 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 143 flow [2022-11-23 03:51:12,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 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) [2022-11-23 03:51:12,881 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:51:12,882 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:51:12,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 03:51:12,882 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)] === [2022-11-23 03:51:12,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:51:12,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1319139056, now seen corresponding path program 1 times [2022-11-23 03:51:12,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:51:12,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686767235] [2022-11-23 03:51:12,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:51:12,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:51:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:51:13,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:51:13,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:51:13,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686767235] [2022-11-23 03:51:13,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686767235] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:51:13,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:51:13,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:51:13,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534222628] [2022-11-23 03:51:13,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:51:13,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:51:13,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:51:13,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:51:13,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:51:13,104 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 609 [2022-11-23 03:51:13,106 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 143 flow. Second operand has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 states have internal predecessors, (886), 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) [2022-11-23 03:51:13,106 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:51:13,106 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 609 [2022-11-23 03:51:13,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:51:13,192 INFO L130 PetriNetUnfolder]: 111/201 cut-off events. [2022-11-23 03:51:13,192 INFO L131 PetriNetUnfolder]: For 74/74 co-relation queries the response was YES. [2022-11-23 03:51:13,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 524 conditions, 201 events. 111/201 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 516 event pairs, 57 based on Foata normal form. 2/163 useless extension candidates. Maximal degree in co-relation 514. Up to 191 conditions per place. [2022-11-23 03:51:13,193 INFO L137 encePairwiseOnDemand]: 607/609 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions. [2022-11-23 03:51:13,194 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 31 transitions, 197 flow [2022-11-23 03:51:13,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:51:13,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:51:13,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 899 transitions. [2022-11-23 03:51:13,197 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49206349206349204 [2022-11-23 03:51:13,198 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 899 transitions. [2022-11-23 03:51:13,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 899 transitions. [2022-11-23 03:51:13,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:51:13,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 899 transitions. [2022-11-23 03:51:13,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.6666666666667) internal successors, (899), 3 states have internal predecessors, (899), 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) [2022-11-23 03:51:13,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 609.0) internal successors, (2436), 4 states have internal predecessors, (2436), 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) [2022-11-23 03:51:13,209 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 609.0) internal successors, (2436), 4 states have internal predecessors, (2436), 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) [2022-11-23 03:51:13,209 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 143 flow. Second operand 3 states and 899 transitions. [2022-11-23 03:51:13,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 31 transitions, 197 flow [2022-11-23 03:51:13,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 31 transitions, 179 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-23 03:51:13,212 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2022-11-23 03:51:13,212 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=609, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2022-11-23 03:51:13,216 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, -1 predicate places. [2022-11-23 03:51:13,216 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2022-11-23 03:51:13,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 states have internal predecessors, (886), 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) [2022-11-23 03:51:13,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2022-11-23 03:51:13,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 12 remaining) [2022-11-23 03:51:13,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 12 remaining) [2022-11-23 03:51:13,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 12 remaining) [2022-11-23 03:51:13,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2022-11-23 03:51:13,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2022-11-23 03:51:13,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 12 remaining) [2022-11-23 03:51:13,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2022-11-23 03:51:13,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 12 remaining) [2022-11-23 03:51:13,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 12 remaining) [2022-11-23 03:51:13,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 12 remaining) [2022-11-23 03:51:13,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2022-11-23 03:51:13,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 03:51:13,227 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-23 03:51:13,234 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 03:51:13,234 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:51:13,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:51:13 BasicIcfg [2022-11-23 03:51:13,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:51:13,244 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:51:13,245 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:51:13,245 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:51:13,245 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:50:59" (3/4) ... [2022-11-23 03:51:13,249 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 03:51:13,256 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2022-11-23 03:51:13,256 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2022-11-23 03:51:13,263 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-23 03:51:13,264 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 03:51:13,264 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 03:51:13,264 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 03:51:13,328 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 03:51:13,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:51:13,329 INFO L158 Benchmark]: Toolchain (without parser) took 17012.85ms. Allocated memory was 146.8MB in the beginning and 239.1MB in the end (delta: 92.3MB). Free memory was 92.2MB in the beginning and 167.3MB in the end (delta: -75.1MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-11-23 03:51:13,329 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 146.8MB. Free memory was 84.5MB in the beginning and 84.3MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:51:13,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1492.81ms. Allocated memory was 146.8MB in the beginning and 199.2MB in the end (delta: 52.4MB). Free memory was 91.8MB in the beginning and 128.5MB in the end (delta: -36.7MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2022-11-23 03:51:13,330 INFO L158 Benchmark]: Boogie Procedure Inliner took 137.11ms. Allocated memory is still 199.2MB. Free memory was 128.5MB in the beginning and 124.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 03:51:13,331 INFO L158 Benchmark]: Boogie Preprocessor took 79.33ms. Allocated memory is still 199.2MB. Free memory was 124.3MB in the beginning and 121.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:51:13,331 INFO L158 Benchmark]: RCFGBuilder took 1133.13ms. Allocated memory is still 199.2MB. Free memory was 121.3MB in the beginning and 156.5MB in the end (delta: -35.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-23 03:51:13,332 INFO L158 Benchmark]: TraceAbstraction took 14077.05ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 156.5MB in the beginning and 170.4MB in the end (delta: -13.9MB). Peak memory consumption was 140.5MB. Max. memory is 16.1GB. [2022-11-23 03:51:13,332 INFO L158 Benchmark]: Witness Printer took 83.73ms. Allocated memory is still 239.1MB. Free memory was 170.4MB in the beginning and 167.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 03:51:13,336 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 146.8MB. Free memory was 84.5MB in the beginning and 84.3MB in the end (delta: 134.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1492.81ms. Allocated memory was 146.8MB in the beginning and 199.2MB in the end (delta: 52.4MB). Free memory was 91.8MB in the beginning and 128.5MB in the end (delta: -36.7MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 137.11ms. Allocated memory is still 199.2MB. Free memory was 128.5MB in the beginning and 124.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.33ms. Allocated memory is still 199.2MB. Free memory was 124.3MB in the beginning and 121.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1133.13ms. Allocated memory is still 199.2MB. Free memory was 121.3MB in the beginning and 156.5MB in the end (delta: -35.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 14077.05ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 156.5MB in the beginning and 170.4MB in the end (delta: -13.9MB). Peak memory consumption was 140.5MB. Max. memory is 16.1GB. * Witness Printer took 83.73ms. Allocated memory is still 239.1MB. Free memory was 170.4MB in the beginning and 167.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.4s, 212 PlacesBefore, 34 PlacesAfterwards, 227 TransitionsBefore, 36 TransitionsAfterwards, 10804 CoEnabledTransitionPairs, 8 FixpointIterations, 64 TrivialSequentialCompositions, 153 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 46 ConcurrentYvCompositions, 13 ChoiceCompositions, 278 TotalNumberOfCompositions, 12736 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10999, independent: 10888, independent conditional: 0, independent unconditional: 10888, dependent: 111, dependent conditional: 0, dependent unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8125, independent: 8088, independent conditional: 0, independent unconditional: 8088, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8125, independent: 8075, independent conditional: 0, independent unconditional: 8075, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 234, independent: 53, independent conditional: 0, independent unconditional: 53, dependent: 181, dependent conditional: 0, dependent unconditional: 181, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10999, independent: 2800, independent conditional: 0, independent unconditional: 2800, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 8125, unknown conditional: 0, unknown unconditional: 8125] , Statistics on independence cache: Total cache size (in pairs): 116, Positive cache size: 105, Positive conditional cache size: 0, Positive unconditional cache size: 105, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, 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, 328 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: 13.8s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 227 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 489 IncrementalHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 35 mSDtfsCounter, 489 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=246occurred 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, 0.8s 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! [2022-11-23 03:51:13,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_593df0d3-875c-4880-8a6c-9c8859d0fec2/bin/uautomizer-QkZJyEgLgS/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