./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_longer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue_longer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/bin/uautomizer-ug76WZFUDN --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 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 --- 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-6b4ec56 [2022-11-20 12:38:38,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:38:38,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:38:39,036 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:38:39,037 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:38:39,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:38:39,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:38:39,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:38:39,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:38:39,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:38:39,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:38:39,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:38:39,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:38:39,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:38:39,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:38:39,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:38:39,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:38:39,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:38:39,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:38:39,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:38:39,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:38:39,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:38:39,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:38:39,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:38:39,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:38:39,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:38:39,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:38:39,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:38:39,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:38:39,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:38:39,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:38:39,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:38:39,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:38:39,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:38:39,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:38:39,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:38:39,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:38:39,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:38:39,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:38:39,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:38:39,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:38:39,157 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:38:39,207 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:38:39,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:38:39,209 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:38:39,209 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:38:39,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:38:39,210 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:38:39,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:38:39,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:38:39,211 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:38:39,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:38:39,213 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:38:39,213 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:38:39,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:38:39,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:38:39,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:38:39,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:38:39,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:38:39,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:38:39,215 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:38:39,215 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:38:39,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:38:39,216 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:38:39,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:38:39,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:38:39,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:38:39,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:38:39,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:38:39,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:38:39,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:38:39,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:38:39,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:38:39,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:38:39,219 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:38:39,220 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:38:39,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:38:39,220 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 [2022-11-20 12:38:39,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:38:39,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:38:39,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:38:39,662 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:38:39,669 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:38:39,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread/queue_longer.i [2022-11-20 12:38:43,374 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:38:43,784 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:38:43,785 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/sv-benchmarks/c/pthread/queue_longer.i [2022-11-20 12:38:43,812 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/bin/uautomizer-ug76WZFUDN/data/f7b61bf37/bb58bfba4105466fb6a7db6c4ad75339/FLAGdf2565f3f [2022-11-20 12:38:43,838 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/bin/uautomizer-ug76WZFUDN/data/f7b61bf37/bb58bfba4105466fb6a7db6c4ad75339 [2022-11-20 12:38:43,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:38:43,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:38:43,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:38:43,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:38:43,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:38:43,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:38:43" (1/1) ... [2022-11-20 12:38:43,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@700a276f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:43, skipping insertion in model container [2022-11-20 12:38:43,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:38:43" (1/1) ... [2022-11-20 12:38:43,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:38:43,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:38:44,687 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_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/sv-benchmarks/c/pthread/queue_longer.i[43296,43309] [2022-11-20 12:38:44,692 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_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/sv-benchmarks/c/pthread/queue_longer.i[43503,43516] [2022-11-20 12:38:44,696 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_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/sv-benchmarks/c/pthread/queue_longer.i[43783,43796] [2022-11-20 12:38:44,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:38:44,717 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:38:44,821 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_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/sv-benchmarks/c/pthread/queue_longer.i[43296,43309] [2022-11-20 12:38:44,824 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_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/sv-benchmarks/c/pthread/queue_longer.i[43503,43516] [2022-11-20 12:38:44,829 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_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/sv-benchmarks/c/pthread/queue_longer.i[43783,43796] [2022-11-20 12:38:44,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:38:44,926 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:38:44,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:44 WrapperNode [2022-11-20 12:38:44,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:38:44,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:38:44,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:38:44,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:38:44,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:44" (1/1) ... [2022-11-20 12:38:44,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:44" (1/1) ... [2022-11-20 12:38:45,035 INFO L138 Inliner]: procedures = 274, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 481 [2022-11-20 12:38:45,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:38:45,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:38:45,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:38:45,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:38:45,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:44" (1/1) ... [2022-11-20 12:38:45,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:44" (1/1) ... [2022-11-20 12:38:45,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:44" (1/1) ... [2022-11-20 12:38:45,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:44" (1/1) ... [2022-11-20 12:38:45,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:44" (1/1) ... [2022-11-20 12:38:45,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:44" (1/1) ... [2022-11-20 12:38:45,114 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:44" (1/1) ... [2022-11-20 12:38:45,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:44" (1/1) ... [2022-11-20 12:38:45,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:38:45,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:38:45,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:38:45,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:38:45,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:44" (1/1) ... [2022-11-20 12:38:45,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:38:45,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:38:45,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:38:45,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cec5646f-2f97-4a8c-ab0a-45e4d6f006e6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:38:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-20 12:38:45,227 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-20 12:38:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-20 12:38:45,227 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-20 12:38:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:38:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:38:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:38:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:38:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 12:38:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:38:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:38:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:38:45,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:38:45,231 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:38:45,543 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:38:45,546 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:38:46,647 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:38:46,665 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:38:46,665 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 12:38:46,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:38:46 BoogieIcfgContainer [2022-11-20 12:38:46,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:38:46,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:38:46,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:38:46,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:38:46,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:38:43" (1/3) ... [2022-11-20 12:38:46,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0276d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:38:46, skipping insertion in model container [2022-11-20 12:38:46,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:38:44" (2/3) ... [2022-11-20 12:38:46,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0276d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:38:46, skipping insertion in model container [2022-11-20 12:38:46,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:38:46" (3/3) ... [2022-11-20 12:38:46,682 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longer.i [2022-11-20 12:38:46,695 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:38:46,708 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:38:46,710 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-11-20 12:38:46,710 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:38:46,934 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 12:38:46,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 545 places, 553 transitions, 1122 flow [2022-11-20 12:38:47,294 INFO L130 PetriNetUnfolder]: 15/551 cut-off events. [2022-11-20 12:38:47,294 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 12:38:47,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 551 events. 15/551 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 791 event pairs, 0 based on Foata normal form. 0/492 useless extension candidates. Maximal degree in co-relation 421. Up to 2 conditions per place. [2022-11-20 12:38:47,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 545 places, 553 transitions, 1122 flow [2022-11-20 12:38:47,329 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 533 places, 541 transitions, 1091 flow [2022-11-20 12:38:47,342 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:38:47,351 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;@2e09c032, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:38:47,351 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2022-11-20 12:38:47,387 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2022-11-20 12:38:47,388 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:38:47,388 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:38:47,389 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:47,390 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-20 12:38:47,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:47,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1503232977, now seen corresponding path program 1 times [2022-11-20 12:38:47,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:47,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406289839] [2022-11-20 12:38:47,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:47,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:47,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:47,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:47,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406289839] [2022-11-20 12:38:47,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406289839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:47,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:47,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:38:47,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637730424] [2022-11-20 12:38:47,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:47,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:38:47,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:47,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:38:47,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:38:47,740 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 525 out of 553 [2022-11-20 12:38:47,747 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 533 places, 541 transitions, 1091 flow. Second operand has 3 states, 3 states have (on average 526.3333333333334) internal successors, (1579), 3 states have internal predecessors, (1579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:47,748 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:38:47,748 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 525 of 553 [2022-11-20 12:38:47,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:38:48,420 INFO L130 PetriNetUnfolder]: 59/1325 cut-off events. [2022-11-20 12:38:48,420 INFO L131 PetriNetUnfolder]: For 32/33 co-relation queries the response was YES. [2022-11-20 12:38:48,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1433 conditions, 1325 events. 59/1325 cut-off events. For 32/33 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 5630 event pairs, 27 based on Foata normal form. 23/1183 useless extension candidates. Maximal degree in co-relation 1149. Up to 79 conditions per place. [2022-11-20 12:38:48,444 INFO L137 encePairwiseOnDemand]: 545/553 looper letters, 15 selfloop transitions, 2 changer transitions 0/530 dead transitions. [2022-11-20 12:38:48,445 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 530 transitions, 1103 flow [2022-11-20 12:38:48,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:38:48,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:38:48,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1598 transitions. [2022-11-20 12:38:48,474 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9632308619650392 [2022-11-20 12:38:48,475 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1598 transitions. [2022-11-20 12:38:48,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1598 transitions. [2022-11-20 12:38:48,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:38:48,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1598 transitions. [2022-11-20 12:38:48,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 532.6666666666666) internal successors, (1598), 3 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:48,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 553.0) internal successors, (2212), 4 states have internal predecessors, (2212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:48,512 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 553.0) internal successors, (2212), 4 states have internal predecessors, (2212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:48,514 INFO L175 Difference]: Start difference. First operand has 533 places, 541 transitions, 1091 flow. Second operand 3 states and 1598 transitions. [2022-11-20 12:38:48,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 530 transitions, 1103 flow [2022-11-20 12:38:48,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 526 places, 530 transitions, 1098 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 12:38:48,543 INFO L231 Difference]: Finished difference. Result has 526 places, 530 transitions, 1068 flow [2022-11-20 12:38:48,546 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=1064, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1068, PETRI_PLACES=526, PETRI_TRANSITIONS=530} [2022-11-20 12:38:48,555 INFO L288 CegarLoopForPetriNet]: 533 programPoint places, -7 predicate places. [2022-11-20 12:38:48,555 INFO L495 AbstractCegarLoop]: Abstraction has has 526 places, 530 transitions, 1068 flow [2022-11-20 12:38:48,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 526.3333333333334) internal successors, (1579), 3 states have internal predecessors, (1579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:48,557 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:38:48,557 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:48,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:38:48,559 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-20 12:38:48,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:48,562 INFO L85 PathProgramCache]: Analyzing trace with hash -2137247129, now seen corresponding path program 1 times [2022-11-20 12:38:48,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:48,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017833665] [2022-11-20 12:38:48,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:48,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:48,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:48,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:48,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017833665] [2022-11-20 12:38:48,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017833665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:48,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:48,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:38:48,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936175697] [2022-11-20 12:38:48,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:48,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:38:48,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:48,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:38:48,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:38:48,744 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 525 out of 553 [2022-11-20 12:38:48,747 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 530 transitions, 1068 flow. Second operand has 3 states, 3 states have (on average 526.3333333333334) internal successors, (1579), 3 states have internal predecessors, (1579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:48,752 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:38:48,752 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 525 of 553 [2022-11-20 12:38:48,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:38:49,429 INFO L130 PetriNetUnfolder]: 71/1702 cut-off events. [2022-11-20 12:38:49,430 INFO L131 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-11-20 12:38:49,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1802 conditions, 1702 events. 71/1702 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 6889 event pairs, 27 based on Foata normal form. 0/1489 useless extension candidates. Maximal degree in co-relation 1762. Up to 85 conditions per place. [2022-11-20 12:38:49,456 INFO L137 encePairwiseOnDemand]: 550/553 looper letters, 15 selfloop transitions, 2 changer transitions 0/529 dead transitions. [2022-11-20 12:38:49,457 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 529 transitions, 1100 flow [2022-11-20 12:38:49,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:38:49,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:38:49,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1593 transitions. [2022-11-20 12:38:49,462 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9602169981916817 [2022-11-20 12:38:49,463 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1593 transitions. [2022-11-20 12:38:49,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1593 transitions. [2022-11-20 12:38:49,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:38:49,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1593 transitions. [2022-11-20 12:38:49,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 531.0) internal successors, (1593), 3 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:49,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 553.0) internal successors, (2212), 4 states have internal predecessors, (2212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:49,476 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 553.0) internal successors, (2212), 4 states have internal predecessors, (2212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:49,476 INFO L175 Difference]: Start difference. First operand has 526 places, 530 transitions, 1068 flow. Second operand 3 states and 1593 transitions. [2022-11-20 12:38:49,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 529 transitions, 1100 flow [2022-11-20 12:38:49,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 525 places, 529 transitions, 1096 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:38:49,489 INFO L231 Difference]: Finished difference. Result has 525 places, 529 transitions, 1066 flow [2022-11-20 12:38:49,490 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=553, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=523, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1066, PETRI_PLACES=525, PETRI_TRANSITIONS=529} [2022-11-20 12:38:49,493 INFO L288 CegarLoopForPetriNet]: 533 programPoint places, -8 predicate places. [2022-11-20 12:38:49,493 INFO L495 AbstractCegarLoop]: Abstraction has has 525 places, 529 transitions, 1066 flow [2022-11-20 12:38:49,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 526.3333333333334) internal successors, (1579), 3 states have internal predecessors, (1579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:49,495 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:38:49,496 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:49,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:38:49,496 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-11-20 12:38:49,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:49,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1920164171, now seen corresponding path program 1 times [2022-11-20 12:38:49,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:38:49,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711463638] [2022-11-20 12:38:49,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:49,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:38:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:50,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:38:50,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:38:50,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711463638] [2022-11-20 12:38:50,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711463638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:50,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:50,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:38:50,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992682760] [2022-11-20 12:38:50,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:50,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:38:50,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:38:50,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:38:50,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:38:50,151 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 553 [2022-11-20 12:38:50,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 529 transitions, 1066 flow. Second operand has 6 states, 6 states have (on average 318.5) internal successors, (1911), 6 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:38:50,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:38:50,155 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 553 [2022-11-20 12:38:50,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand