./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl/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_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --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 --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:07:50,631 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:07:50,754 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:07:50,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:07:50,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:07:50,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:07:50,816 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:07:50,816 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:07:50,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:07:50,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:07:50,826 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:07:50,826 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:07:50,827 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:07:50,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:07:50,829 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:07:50,830 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:07:50,830 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:07:50,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:07:50,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:07:50,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:07:50,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:07:50,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:07:50,833 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:07:50,833 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:07:50,834 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:07:50,835 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:07:50,835 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:07:50,836 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:07:50,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:07:50,836 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:07:50,838 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:07:50,838 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:07:50,838 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:07:50,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:07:50,839 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:07:50,839 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:07:50,839 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:07:50,840 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:07:50,840 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:07:50,840 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2023-11-12 02:07:51,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:07:51,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:07:51,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:07:51,214 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:07:51,214 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:07:51,216 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2023-11-12 02:07:54,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:07:54,824 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:07:54,825 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2023-11-12 02:07:54,862 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl/data/acd4be27c/686db2ceb82a4c7ca518a51217d5c76b/FLAG52db9b9a4 [2023-11-12 02:07:54,877 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl/data/acd4be27c/686db2ceb82a4c7ca518a51217d5c76b [2023-11-12 02:07:54,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:07:54,881 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:07:54,882 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:07:54,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:07:54,888 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:07:54,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:07:54" (1/1) ... [2023-11-12 02:07:54,890 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3226d83c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:54, skipping insertion in model container [2023-11-12 02:07:54,890 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:07:54" (1/1) ... [2023-11-12 02:07:54,967 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:07:55,847 WARN L240 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_eea64255-e610-40f6-a6e3-8290799c77da/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2023-11-12 02:07:55,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:07:55,957 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:07:56,037 WARN L240 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_eea64255-e610-40f6-a6e3-8290799c77da/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2023-11-12 02:07:56,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:07:56,275 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:07:56,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:56 WrapperNode [2023-11-12 02:07:56,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:07:56,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:07:56,277 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:07:56,277 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:07:56,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:56" (1/1) ... [2023-11-12 02:07:56,335 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:56" (1/1) ... [2023-11-12 02:07:56,402 INFO L138 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 204 [2023-11-12 02:07:56,402 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:07:56,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:07:56,403 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:07:56,404 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:07:56,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:56" (1/1) ... [2023-11-12 02:07:56,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:56" (1/1) ... [2023-11-12 02:07:56,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:56" (1/1) ... [2023-11-12 02:07:56,439 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:56" (1/1) ... [2023-11-12 02:07:56,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:56" (1/1) ... [2023-11-12 02:07:56,457 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:56" (1/1) ... [2023-11-12 02:07:56,462 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:56" (1/1) ... [2023-11-12 02:07:56,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:56" (1/1) ... [2023-11-12 02:07:56,473 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:07:56,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:07:56,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:07:56,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:07:56,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:56" (1/1) ... [2023-11-12 02:07:56,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:07:56,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:56,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:56,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:07:56,579 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2023-11-12 02:07:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2023-11-12 02:07:56,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:07:56,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:07:56,580 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2023-11-12 02:07:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2023-11-12 02:07:56,580 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:07:56,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:07:56,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:07:56,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:07:56,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:07:56,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:07:56,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:07:56,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:07:56,583 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:07:56,910 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:07:56,912 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:07:57,202 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:07:57,216 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:07:57,219 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:07:57,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:07:57 BoogieIcfgContainer [2023-11-12 02:07:57,223 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:07:57,227 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:07:57,227 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:07:57,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:07:57,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:07:54" (1/3) ... [2023-11-12 02:07:57,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca74c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:07:57, skipping insertion in model container [2023-11-12 02:07:57,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:56" (2/3) ... [2023-11-12 02:07:57,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca74c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:07:57, skipping insertion in model container [2023-11-12 02:07:57,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:07:57" (3/3) ... [2023-11-12 02:07:57,237 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2023-11-12 02:07:57,246 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:07:57,254 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:07:57,254 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-12 02:07:57,255 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:07:57,420 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-11-12 02:07:57,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 290 places, 320 transitions, 667 flow [2023-11-12 02:07:57,615 INFO L124 PetriNetUnfolderBase]: 33/330 cut-off events. [2023-11-12 02:07:57,615 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:07:57,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 330 events. 33/330 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 828 event pairs, 0 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 221. Up to 11 conditions per place. [2023-11-12 02:07:57,625 INFO L82 GeneralOperation]: Start removeDead. Operand has 290 places, 320 transitions, 667 flow [2023-11-12 02:07:57,636 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 203 places, 218 transitions, 452 flow [2023-11-12 02:07:57,640 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:07:57,665 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 218 transitions, 452 flow [2023-11-12 02:07:57,668 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 218 transitions, 452 flow [2023-11-12 02:07:57,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 218 transitions, 452 flow [2023-11-12 02:07:57,739 INFO L124 PetriNetUnfolderBase]: 31/314 cut-off events. [2023-11-12 02:07:57,739 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:07:57,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 314 events. 31/314 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 722 event pairs, 0 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 221. Up to 11 conditions per place. [2023-11-12 02:07:57,752 INFO L119 LiptonReduction]: Number of co-enabled transitions 10308 [2023-11-12 02:08:05,842 INFO L134 LiptonReduction]: Checked pairs total: 12946 [2023-11-12 02:08:05,842 INFO L136 LiptonReduction]: Total number of compositions: 268 [2023-11-12 02:08:05,857 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:08:05,863 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=LoopHeads, 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;@68ec8341, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:08:05,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-12 02:08:05,865 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:08:05,866 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-12 02:08:05,866 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:08:05,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:08:05,867 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:08:05,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-11-12 02:08:05,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:05,873 INFO L85 PathProgramCache]: Analyzing trace with hash 983, now seen corresponding path program 1 times [2023-11-12 02:08:05,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:05,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530880432] [2023-11-12 02:08:05,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:05,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:06,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:06,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:06,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530880432] [2023-11-12 02:08:06,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530880432] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:06,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:06,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:08:06,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601191604] [2023-11-12 02:08:06,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:06,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:08:06,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:06,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:08:06,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:08:06,174 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 588 [2023-11-12 02:08:06,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 36 transitions, 88 flow. Second operand has 2 states, 2 states have (on average 290.5) internal successors, (581), 2 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:06,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:08:06,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 588 [2023-11-12 02:08:06,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:08:06,325 INFO L124 PetriNetUnfolderBase]: 233/373 cut-off events. [2023-11-12 02:08:06,325 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-12 02:08:06,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 373 events. 233/373 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1324 event pairs, 117 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 619. Up to 355 conditions per place. [2023-11-12 02:08:06,333 INFO L140 encePairwiseOnDemand]: 584/588 looper letters, 27 selfloop transitions, 0 changer transitions 0/32 dead transitions. [2023-11-12 02:08:06,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 32 transitions, 134 flow [2023-11-12 02:08:06,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:08:06,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:08:06,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 611 transitions. [2023-11-12 02:08:06,364 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5195578231292517 [2023-11-12 02:08:06,365 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 611 transitions. [2023-11-12 02:08:06,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 611 transitions. [2023-11-12 02:08:06,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:08:06,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 611 transitions. [2023-11-12 02:08:06,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 305.5) internal successors, (611), 2 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:06,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 588.0) internal successors, (1764), 3 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:06,386 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 588.0) internal successors, (1764), 3 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:06,387 INFO L175 Difference]: Start difference. First operand has 34 places, 36 transitions, 88 flow. Second operand 2 states and 611 transitions. [2023-11-12 02:08:06,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 32 transitions, 134 flow [2023-11-12 02:08:06,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 32 transitions, 130 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:08:06,393 INFO L231 Difference]: Finished difference. Result has 30 places, 32 transitions, 76 flow [2023-11-12 02:08:06,395 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=76, PETRI_PLACES=30, PETRI_TRANSITIONS=32} [2023-11-12 02:08:06,398 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -4 predicate places. [2023-11-12 02:08:06,399 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 32 transitions, 76 flow [2023-11-12 02:08:06,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 290.5) internal successors, (581), 2 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:06,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:08:06,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:08:06,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:08:06,400 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-11-12 02:08:06,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:06,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1095074329, now seen corresponding path program 1 times [2023-11-12 02:08:06,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:06,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598438065] [2023-11-12 02:08:06,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:06,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:06,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:06,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:06,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598438065] [2023-11-12 02:08:06,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598438065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:06,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:06,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:08:06,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107372487] [2023-11-12 02:08:06,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:06,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:08:06,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:06,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:08:06,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:08:06,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 588 [2023-11-12 02:08:06,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 32 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 278.5) internal successors, (1114), 4 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:06,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:08:06,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 588 [2023-11-12 02:08:06,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:08:07,060 INFO L124 PetriNetUnfolderBase]: 297/473 cut-off events. [2023-11-12 02:08:07,060 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-12 02:08:07,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 948 conditions, 473 events. 297/473 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1789 event pairs, 99 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 944. Up to 338 conditions per place. [2023-11-12 02:08:07,064 INFO L140 encePairwiseOnDemand]: 580/588 looper letters, 41 selfloop transitions, 8 changer transitions 0/53 dead transitions. [2023-11-12 02:08:07,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 53 transitions, 217 flow [2023-11-12 02:08:07,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:08:07,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:08:07,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1438 transitions. [2023-11-12 02:08:07,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4891156462585034 [2023-11-12 02:08:07,072 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1438 transitions. [2023-11-12 02:08:07,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1438 transitions. [2023-11-12 02:08:07,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:08:07,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1438 transitions. [2023-11-12 02:08:07,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 287.6) internal successors, (1438), 5 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:07,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 588.0) internal successors, (3528), 6 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:07,116 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 588.0) internal successors, (3528), 6 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:07,117 INFO L175 Difference]: Start difference. First operand has 30 places, 32 transitions, 76 flow. Second operand 5 states and 1438 transitions. [2023-11-12 02:08:07,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 53 transitions, 217 flow [2023-11-12 02:08:07,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 53 transitions, 217 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:08:07,134 INFO L231 Difference]: Finished difference. Result has 37 places, 38 transitions, 133 flow [2023-11-12 02:08:07,134 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=133, PETRI_PLACES=37, PETRI_TRANSITIONS=38} [2023-11-12 02:08:07,135 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2023-11-12 02:08:07,136 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 38 transitions, 133 flow [2023-11-12 02:08:07,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 278.5) internal successors, (1114), 4 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:07,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:08:07,137 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:07,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:08:07,137 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-11-12 02:08:07,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:07,138 INFO L85 PathProgramCache]: Analyzing trace with hash -105274481, now seen corresponding path program 1 times [2023-11-12 02:08:07,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:07,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629951406] [2023-11-12 02:08:07,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:07,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:07,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:07,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:07,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629951406] [2023-11-12 02:08:07,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629951406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:07,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:07,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:08:07,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685151553] [2023-11-12 02:08:07,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:07,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:08:07,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:07,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:08:07,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:08:07,297 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 588 [2023-11-12 02:08:07,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 38 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 283.3333333333333) internal successors, (850), 3 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:07,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:08:07,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 588 [2023-11-12 02:08:07,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:08:07,447 INFO L124 PetriNetUnfolderBase]: 301/481 cut-off events. [2023-11-12 02:08:07,447 INFO L125 PetriNetUnfolderBase]: For 180/188 co-relation queries the response was YES. [2023-11-12 02:08:07,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1255 conditions, 481 events. 301/481 cut-off events. For 180/188 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1724 event pairs, 72 based on Foata normal form. 28/397 useless extension candidates. Maximal degree in co-relation 1247. Up to 234 conditions per place. [2023-11-12 02:08:07,452 INFO L140 encePairwiseOnDemand]: 580/588 looper letters, 42 selfloop transitions, 8 changer transitions 0/56 dead transitions. [2023-11-12 02:08:07,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 56 transitions, 290 flow [2023-11-12 02:08:07,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:08:07,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:08:07,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 892 transitions. [2023-11-12 02:08:07,456 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5056689342403629 [2023-11-12 02:08:07,457 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 892 transitions. [2023-11-12 02:08:07,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 892 transitions. [2023-11-12 02:08:07,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:08:07,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 892 transitions. [2023-11-12 02:08:07,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:07,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:07,468 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:07,468 INFO L175 Difference]: Start difference. First operand has 37 places, 38 transitions, 133 flow. Second operand 3 states and 892 transitions. [2023-11-12 02:08:07,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 56 transitions, 290 flow [2023-11-12 02:08:07,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 56 transitions, 290 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:08:07,473 INFO L231 Difference]: Finished difference. Result has 41 places, 43 transitions, 203 flow [2023-11-12 02:08:07,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=41, PETRI_TRANSITIONS=43} [2023-11-12 02:08:07,474 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 7 predicate places. [2023-11-12 02:08:07,474 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 43 transitions, 203 flow [2023-11-12 02:08:07,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 283.3333333333333) internal successors, (850), 3 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:07,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:08:07,476 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:07,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:08:07,476 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbThread1of1ForFork1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-11-12 02:08:07,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:07,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1042558464, now seen corresponding path program 1 times [2023-11-12 02:08:07,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:07,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679999277] [2023-11-12 02:08:07,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:07,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:07,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:07,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:07,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679999277] [2023-11-12 02:08:07,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679999277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:07,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:07,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:08:07,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417526638] [2023-11-12 02:08:07,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:07,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:08:07,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:07,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:08:07,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:08:07,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 588 [2023-11-12 02:08:07,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 43 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:07,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:08:07,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 588 [2023-11-12 02:08:07,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:08:07,711 INFO L124 PetriNetUnfolderBase]: 254/420 cut-off events. [2023-11-12 02:08:07,712 INFO L125 PetriNetUnfolderBase]: For 574/582 co-relation queries the response was YES. [2023-11-12 02:08:07,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1277 conditions, 420 events. 254/420 cut-off events. For 574/582 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1561 event pairs, 79 based on Foata normal form. 20/362 useless extension candidates. Maximal degree in co-relation 1267. Up to 294 conditions per place. [2023-11-12 02:08:07,716 INFO L140 encePairwiseOnDemand]: 582/588 looper letters, 40 selfloop transitions, 3 changer transitions 1/49 dead transitions. [2023-11-12 02:08:07,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 49 transitions, 315 flow [2023-11-12 02:08:07,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:08:07,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:08:07,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 865 transitions. [2023-11-12 02:08:07,721 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49036281179138325 [2023-11-12 02:08:07,721 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 865 transitions. [2023-11-12 02:08:07,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 865 transitions. [2023-11-12 02:08:07,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:08:07,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 865 transitions. [2023-11-12 02:08:07,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 288.3333333333333) internal successors, (865), 3 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:07,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:07,732 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:07,733 INFO L175 Difference]: Start difference. First operand has 41 places, 43 transitions, 203 flow. Second operand 3 states and 865 transitions. [2023-11-12 02:08:07,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 49 transitions, 315 flow [2023-11-12 02:08:07,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 49 transitions, 293 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-12 02:08:07,739 INFO L231 Difference]: Finished difference. Result has 40 places, 41 transitions, 191 flow [2023-11-12 02:08:07,739 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=40, PETRI_TRANSITIONS=41} [2023-11-12 02:08:07,740 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 6 predicate places. [2023-11-12 02:08:07,740 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 41 transitions, 191 flow [2023-11-12 02:08:07,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:07,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:08:07,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:07,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:08:07,742 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-11-12 02:08:07,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:07,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1910508873, now seen corresponding path program 1 times [2023-11-12 02:08:07,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:07,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189341993] [2023-11-12 02:08:07,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:07,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:07,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:07,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:07,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189341993] [2023-11-12 02:08:07,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189341993] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:07,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:07,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:08:07,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945010332] [2023-11-12 02:08:07,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:07,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:08:07,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:07,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:08:07,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:08:07,899 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 588 [2023-11-12 02:08:07,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 41 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:07,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:08:07,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 588 [2023-11-12 02:08:07,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:08:07,993 INFO L124 PetriNetUnfolderBase]: 122/202 cut-off events. [2023-11-12 02:08:07,994 INFO L125 PetriNetUnfolderBase]: For 220/220 co-relation queries the response was YES. [2023-11-12 02:08:07,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 202 events. 122/202 cut-off events. For 220/220 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 583 event pairs, 44 based on Foata normal form. 12/186 useless extension candidates. Maximal degree in co-relation 567. Up to 158 conditions per place. [2023-11-12 02:08:07,996 INFO L140 encePairwiseOnDemand]: 585/588 looper letters, 30 selfloop transitions, 2 changer transitions 2/38 dead transitions. [2023-11-12 02:08:07,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 38 transitions, 236 flow [2023-11-12 02:08:07,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:08:07,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:08:08,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 896 transitions. [2023-11-12 02:08:08,001 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5079365079365079 [2023-11-12 02:08:08,001 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 896 transitions. [2023-11-12 02:08:08,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 896 transitions. [2023-11-12 02:08:08,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:08:08,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 896 transitions. [2023-11-12 02:08:08,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 298.6666666666667) internal successors, (896), 3 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:08,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:08,013 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:08,013 INFO L175 Difference]: Start difference. First operand has 40 places, 41 transitions, 191 flow. Second operand 3 states and 896 transitions. [2023-11-12 02:08:08,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 38 transitions, 236 flow [2023-11-12 02:08:08,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 38 transitions, 186 flow, removed 15 selfloop flow, removed 6 redundant places. [2023-11-12 02:08:08,016 INFO L231 Difference]: Finished difference. Result has 34 places, 30 transitions, 104 flow [2023-11-12 02:08:08,017 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=34, PETRI_TRANSITIONS=30} [2023-11-12 02:08:08,018 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 0 predicate places. [2023-11-12 02:08:08,018 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 30 transitions, 104 flow [2023-11-12 02:08:08,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:08,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:08:08,019 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:08:08,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:08:08,020 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2023-11-12 02:08:08,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:08,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1997630019, now seen corresponding path program 1 times [2023-11-12 02:08:08,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:08,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836190918] [2023-11-12 02:08:08,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:08,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:08,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:08,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:08,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836190918] [2023-11-12 02:08:08,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836190918] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:08,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:08,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:08:08,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355957705] [2023-11-12 02:08:08,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:08,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:08:08,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:08,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:08:08,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:08:08,186 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 588 [2023-11-12 02:08:08,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:08,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:08:08,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 588 [2023-11-12 02:08:08,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:08:08,261 INFO L124 PetriNetUnfolderBase]: 118/192 cut-off events. [2023-11-12 02:08:08,261 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2023-11-12 02:08:08,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 192 events. 118/192 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 519 event pairs, 58 based on Foata normal form. 1/165 useless extension candidates. Maximal degree in co-relation 481. Up to 183 conditions per place. [2023-11-12 02:08:08,262 INFO L140 encePairwiseOnDemand]: 586/588 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2023-11-12 02:08:08,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 29 transitions, 152 flow [2023-11-12 02:08:08,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:08:08,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:08:08,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 867 transitions. [2023-11-12 02:08:08,267 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4914965986394558 [2023-11-12 02:08:08,267 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 867 transitions. [2023-11-12 02:08:08,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 867 transitions. [2023-11-12 02:08:08,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:08:08,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 867 transitions. [2023-11-12 02:08:08,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:08,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:08,279 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:08,279 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 104 flow. Second operand 3 states and 867 transitions. [2023-11-12 02:08:08,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 29 transitions, 152 flow [2023-11-12 02:08:08,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 29 transitions, 145 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:08:08,282 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2023-11-12 02:08:08,282 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2023-11-12 02:08:08,285 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -2 predicate places. [2023-11-12 02:08:08,285 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2023-11-12 02:08:08,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:08,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2023-11-12 02:08:08,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 12 remaining) [2023-11-12 02:08:08,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 12 remaining) [2023-11-12 02:08:08,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 12 remaining) [2023-11-12 02:08:08,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2023-11-12 02:08:08,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2023-11-12 02:08:08,291 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 12 remaining) [2023-11-12 02:08:08,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2023-11-12 02:08:08,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 12 remaining) [2023-11-12 02:08:08,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 12 remaining) [2023-11-12 02:08:08,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 12 remaining) [2023-11-12 02:08:08,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2023-11-12 02:08:08,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:08:08,293 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-12 02:08:08,299 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:08:08,300 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:08:08,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:08:08 BasicIcfg [2023-11-12 02:08:08,312 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:08:08,312 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:08:08,313 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:08:08,313 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:08:08,314 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:07:57" (3/4) ... [2023-11-12 02:08:08,315 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:08:08,320 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2023-11-12 02:08:08,321 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2023-11-12 02:08:08,327 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-12 02:08:08,327 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-12 02:08:08,328 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:08:08,328 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:08:08,421 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:08:08,422 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:08:08,422 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:08:08,422 INFO L158 Benchmark]: Toolchain (without parser) took 13541.65ms. Allocated memory was 142.6MB in the beginning and 226.5MB in the end (delta: 83.9MB). Free memory was 95.1MB in the beginning and 94.8MB in the end (delta: 255.1kB). Peak memory consumption was 86.2MB. Max. memory is 16.1GB. [2023-11-12 02:08:08,423 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:08:08,423 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1393.26ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 98.6MB in the end (delta: -3.8MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2023-11-12 02:08:08,424 INFO L158 Benchmark]: Boogie Procedure Inliner took 126.22ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 95.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:08:08,424 INFO L158 Benchmark]: Boogie Preprocessor took 69.81ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 92.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:08:08,424 INFO L158 Benchmark]: RCFGBuilder took 749.71ms. Allocated memory is still 142.6MB. Free memory was 92.3MB in the beginning and 67.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-12 02:08:08,425 INFO L158 Benchmark]: TraceAbstraction took 11085.45ms. Allocated memory was 142.6MB in the beginning and 226.5MB in the end (delta: 83.9MB). Free memory was 66.6MB in the beginning and 100.1MB in the end (delta: -33.5MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2023-11-12 02:08:08,425 INFO L158 Benchmark]: Witness Printer took 109.49ms. Allocated memory is still 226.5MB. Free memory was 100.1MB in the beginning and 94.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:08:08,428 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1393.26ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 98.6MB in the end (delta: -3.8MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 126.22ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 95.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.81ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 92.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 749.71ms. Allocated memory is still 142.6MB. Free memory was 92.3MB in the beginning and 67.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 11085.45ms. Allocated memory was 142.6MB in the beginning and 226.5MB in the end (delta: 83.9MB). Free memory was 66.6MB in the beginning and 100.1MB in the end (delta: -33.5MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. * Witness Printer took 109.49ms. Allocated memory is still 226.5MB. Free memory was 100.1MB in the beginning and 94.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.2s, 203 PlacesBefore, 34 PlacesAfterwards, 218 TransitionsBefore, 36 TransitionsAfterwards, 10308 CoEnabledTransitionPairs, 7 FixpointIterations, 55 TrivialSequentialCompositions, 141 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 55 ConcurrentYvCompositions, 13 ChoiceCompositions, 268 TotalNumberOfCompositions, 12946 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11330, independent: 11190, independent conditional: 0, independent unconditional: 11190, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6300, independent: 6254, independent conditional: 0, independent unconditional: 6254, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11330, independent: 4936, independent conditional: 0, independent unconditional: 4936, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 6300, unknown conditional: 0, unknown unconditional: 6300] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 119, Positive conditional cache size: 0, Positive unconditional cache size: 119, 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]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 317 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: 10.8s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 194 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 478 IncrementalHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 34 mSDtfsCounter, 478 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=203occurred 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, 0.7s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 52 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 02:08:08,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eea64255-e610-40f6-a6e3-8290799c77da/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE