./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/mix037.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_c3d74313-dd94-4289-967d-180e5bccb431/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d74313-dd94-4289-967d-180e5bccb431/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d74313-dd94-4289-967d-180e5bccb431/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d74313-dd94-4289-967d-180e5bccb431/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix037.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d74313-dd94-4289-967d-180e5bccb431/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d74313-dd94-4289-967d-180e5bccb431/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be02b321ccd6bac38d207cd4c595c173c1a2ce3b705272ff0087ad749834a1ef --- 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-2329fc7 [2022-12-13 16:43:53,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:43:53,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:43:53,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:43:53,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:43:53,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:43:53,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:43:53,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:43:53,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:43:53,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:43:53,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:43:53,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:43:53,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:43:53,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:43:53,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:43:53,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:43:53,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:43:53,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:43:53,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:43:53,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:43:53,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:43:53,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:43:53,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:43:53,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:43:53,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:43:53,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:43:53,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:43:53,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:43:53,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:43:53,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:43:53,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:43:53,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:43:53,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:43:53,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:43:53,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:43:53,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:43:53,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:43:53,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:43:53,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:43:53,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:43:53,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:43:53,200 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d74313-dd94-4289-967d-180e5bccb431/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 16:43:53,214 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:43:53,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:43:53,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:43:53,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:43:53,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:43:53,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:43:53,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:43:53,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:43:53,216 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:43:53,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:43:53,216 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:43:53,216 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:43:53,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:43:53,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:43:53,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:43:53,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:43:53,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:43:53,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:43:53,217 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 16:43:53,218 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:43:53,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:43:53,218 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:43:53,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:43:53,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:43:53,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:43:53,219 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:43:53,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:43:53,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:43:53,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:43:53,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:43:53,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:43:53,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:43:53,220 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:43:53,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:43:53,220 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:43:53,220 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:43:53,220 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:43:53,220 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_c3d74313-dd94-4289-967d-180e5bccb431/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d74313-dd94-4289-967d-180e5bccb431/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be02b321ccd6bac38d207cd4c595c173c1a2ce3b705272ff0087ad749834a1ef [2022-12-13 16:43:53,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:43:53,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:43:53,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:43:53,405 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:43:53,406 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:43:53,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d74313-dd94-4289-967d-180e5bccb431/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix037.opt.i [2022-12-13 16:43:55,968 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:43:56,156 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:43:56,156 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d74313-dd94-4289-967d-180e5bccb431/sv-benchmarks/c/pthread-wmm/mix037.opt.i [2022-12-13 16:43:56,166 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d74313-dd94-4289-967d-180e5bccb431/bin/uautomizer-uyxdKDjOR8/data/d76e0774b/b8c38bb78349496583a52ec39617e7e1/FLAG93b2ebf50 [2022-12-13 16:43:56,541 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d74313-dd94-4289-967d-180e5bccb431/bin/uautomizer-uyxdKDjOR8/data/d76e0774b/b8c38bb78349496583a52ec39617e7e1 [2022-12-13 16:43:56,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:43:56,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:43:56,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:43:56,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:43:56,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:43:56,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:43:56" (1/1) ... [2022-12-13 16:43:56,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@212d185b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:56, skipping insertion in model container [2022-12-13 16:43:56,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:43:56" (1/1) ... [2022-12-13 16:43:56,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:43:56,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:43:56,691 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_c3d74313-dd94-4289-967d-180e5bccb431/sv-benchmarks/c/pthread-wmm/mix037.opt.i[944,957] [2022-12-13 16:43:56,785 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,790 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,791 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,792 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,793 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,794 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,809 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,812 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,812 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,812 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,812 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,817 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,822 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,822 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,827 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:43:56,836 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:43:56,845 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_c3d74313-dd94-4289-967d-180e5bccb431/sv-benchmarks/c/pthread-wmm/mix037.opt.i[944,957] [2022-12-13 16:43:56,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,876 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 16:43:56,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 16:43:56,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:43:56,910 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:43:56,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:56 WrapperNode [2022-12-13 16:43:56,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:43:56,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:43:56,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:43:56,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:43:56,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:56" (1/1) ... [2022-12-13 16:43:56,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:56" (1/1) ... [2022-12-13 16:43:56,953 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 536 [2022-12-13 16:43:56,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:43:56,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:43:56,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:43:56,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:43:56,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:56" (1/1) ... [2022-12-13 16:43:56,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:56" (1/1) ... [2022-12-13 16:43:56,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:56" (1/1) ... [2022-12-13 16:43:56,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:56" (1/1) ... [2022-12-13 16:43:56,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:56" (1/1) ... [2022-12-13 16:43:56,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:56" (1/1) ... [2022-12-13 16:43:56,989 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:56" (1/1) ... [2022-12-13 16:43:56,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:56" (1/1) ... [2022-12-13 16:43:56,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:43:56,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:43:56,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:43:56,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:43:56,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:56" (1/1) ... [2022-12-13 16:43:57,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:43:57,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d74313-dd94-4289-967d-180e5bccb431/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:43:57,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d74313-dd94-4289-967d-180e5bccb431/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:43:57,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3d74313-dd94-4289-967d-180e5bccb431/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:43:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:43:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 16:43:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:43:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:43:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:43:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 16:43:57,061 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 16:43:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 16:43:57,062 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 16:43:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 16:43:57,062 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 16:43:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 16:43:57,062 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 16:43:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:43:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 16:43:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:43:57,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:43:57,065 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 16:43:57,210 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:43:57,213 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:43:57,976 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:44:54,924 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:44:54,924 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:44:54,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:44:54 BoogieIcfgContainer [2022-12-13 16:44:54,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:44:54,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:44:54,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:44:54,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:44:54,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:43:56" (1/3) ... [2022-12-13 16:44:54,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385d3000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:44:54, skipping insertion in model container [2022-12-13 16:44:54,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:43:56" (2/3) ... [2022-12-13 16:44:54,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385d3000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:44:54, skipping insertion in model container [2022-12-13 16:44:54,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:44:54" (3/3) ... [2022-12-13 16:44:54,932 INFO L112 eAbstractionObserver]: Analyzing ICFG mix037.opt.i [2022-12-13 16:44:54,939 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 16:44:54,946 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:44:54,946 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 200 error locations. [2022-12-13 16:44:54,946 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 16:45:00,618 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 16:45:00,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 350 places, 339 transitions, 698 flow [2022-12-13 16:45:09,531 INFO L130 PetriNetUnfolder]: 2/335 cut-off events. [2022-12-13 16:45:09,531 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:45:09,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 335 events. 2/335 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 1609 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 292. Up to 2 conditions per place. [2022-12-13 16:45:09,538 INFO L82 GeneralOperation]: Start removeDead. Operand has 350 places, 339 transitions, 698 flow [2022-12-13 16:45:09,547 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 346 places, 335 transitions, 682 flow [2022-12-13 16:45:09,550 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:45:09,557 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 346 places, 335 transitions, 682 flow [2022-12-13 16:45:09,559 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 346 places, 335 transitions, 682 flow [2022-12-13 16:45:09,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 346 places, 335 transitions, 682 flow [2022-12-13 16:45:18,272 INFO L130 PetriNetUnfolder]: 2/335 cut-off events. [2022-12-13 16:45:18,272 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:45:18,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 335 events. 2/335 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 1614 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 292. Up to 2 conditions per place. [2022-12-13 16:45:18,286 INFO L119 LiptonReduction]: Number of co-enabled transitions 51432 [2022-12-13 16:45:37,958 WARN L233 SmtUtils]: Spent 19.47s on a formula simplification. DAG size of input: 3556 DAG size of output: 1 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:45:42,868 INFO L134 LiptonReduction]: Checked pairs total: 353763 [2022-12-13 16:45:42,868 INFO L136 LiptonReduction]: Total number of compositions: 167 [2022-12-13 16:45:42,878 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:45:42,881 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;@da4fe22, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:45:42,881 INFO L358 AbstractCegarLoop]: Starting to check reachability of 366 error locations. [2022-12-13 16:45:42,883 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2022-12-13 16:45:42,883 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:45:42,883 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:45:42,883 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 16:45:42,884 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 362 more)] === [2022-12-13 16:45:42,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:45:42,887 INFO L85 PathProgramCache]: Analyzing trace with hash 5350019, now seen corresponding path program 1 times [2022-12-13 16:45:42,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:45:42,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177713910] [2022-12-13 16:45:42,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:45:42,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:45:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:45:43,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:45:43,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:45:43,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177713910] [2022-12-13 16:45:43,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177713910] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:45:43,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:45:43,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 16:45:43,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570524582] [2022-12-13 16:45:43,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:45:43,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:45:43,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:45:43,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:45:43,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:45:43,230 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 506 [2022-12-13 16:45:43,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 226 transitions, 464 flow. Second operand has 2 states, 2 states have (on average 117.5) internal successors, (235), 2 states have internal predecessors, (235), 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) [2022-12-13 16:45:43,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:45:43,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 506 [2022-12-13 16:45:43,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand