./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/reorder_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_caa85072-8550-46d8-90f5-00897c792440/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caa85072-8550-46d8-90f5-00897c792440/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caa85072-8550-46d8-90f5-00897c792440/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caa85072-8550-46d8-90f5-00897c792440/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/reorder_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caa85072-8550-46d8-90f5-00897c792440/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caa85072-8550-46d8-90f5-00897c792440/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 898f8e4708144102795278f9f1417651c36b4d3f17c0ba18e240a325ff6101b3 --- 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 [2022-12-14 11:04:33,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:04:33,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:04:33,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:04:33,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:04:33,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:04:33,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:04:33,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:04:33,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:04:33,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:04:33,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:04:33,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:04:33,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:04:33,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:04:33,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:04:33,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:04:33,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:04:33,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:04:33,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:04:33,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:04:33,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:04:33,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:04:33,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:04:33,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:04:33,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:04:33,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:04:33,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:04:33,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:04:33,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:04:33,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:04:33,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:04:33,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:04:33,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:04:33,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:04:33,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:04:33,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:04:33,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:04:33,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:04:33,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:04:33,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:04:33,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:04:33,285 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caa85072-8550-46d8-90f5-00897c792440/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 11:04:33,298 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:04:33,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:04:33,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:04:33,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:04:33,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:04:33,299 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:04:33,299 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:04:33,299 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:04:33,299 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:04:33,299 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:04:33,299 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:04:33,299 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:04:33,299 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:04:33,299 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:04:33,299 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:04:33,300 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:04:33,300 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:04:33,300 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:04:33,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:04:33,300 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:04:33,300 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:04:33,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:04:33,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:04:33,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:04:33,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:04:33,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:04:33,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:04:33,301 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 11:04:33,301 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:04:33,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:04:33,301 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:04:33,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:04:33,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:04:33,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:04:33,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:04:33,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:04:33,302 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:04:33,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:04:33,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:04:33,303 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:04:33,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:04:33,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:04:33,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:04:33,303 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_caa85072-8550-46d8-90f5-00897c792440/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caa85072-8550-46d8-90f5-00897c792440/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 898f8e4708144102795278f9f1417651c36b4d3f17c0ba18e240a325ff6101b3 [2022-12-14 11:04:33,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:04:33,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:04:33,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:04:33,492 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:04:33,492 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:04:33,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caa85072-8550-46d8-90f5-00897c792440/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread/reorder_5.i [2022-12-14 11:04:36,169 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:04:36,339 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:04:36,339 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caa85072-8550-46d8-90f5-00897c792440/sv-benchmarks/c/pthread/reorder_5.i [2022-12-14 11:04:36,350 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caa85072-8550-46d8-90f5-00897c792440/bin/utaipan-gh47qXpMRh/data/0d4161ac4/da7bfc160d9f46b88c5a377689bab52e/FLAG4c16a5628 [2022-12-14 11:04:36,713 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caa85072-8550-46d8-90f5-00897c792440/bin/utaipan-gh47qXpMRh/data/0d4161ac4/da7bfc160d9f46b88c5a377689bab52e [2022-12-14 11:04:36,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:04:36,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:04:36,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:04:36,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:04:36,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:04:36,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:04:36" (1/1) ... [2022-12-14 11:04:36,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a21f8ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:04:36, skipping insertion in model container [2022-12-14 11:04:36,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:04:36" (1/1) ... [2022-12-14 11:04:36,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:04:36,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:04:37,098 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 11:04:37,108 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 11:04:37,110 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 11:04:37,112 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 11:04:37,114 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 11:04:37,116 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 11:04:37,117 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_caa85072-8550-46d8-90f5-00897c792440/sv-benchmarks/c/pthread/reorder_5.i[59395,59408] [2022-12-14 11:04:37,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:04:37,124 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:04:37,154 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 11:04:37,160 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 11:04:37,161 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 11:04:37,163 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 11:04:37,165 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 11:04:37,168 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 11:04:37,169 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_caa85072-8550-46d8-90f5-00897c792440/sv-benchmarks/c/pthread/reorder_5.i[59395,59408] [2022-12-14 11:04:37,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:04:37,231 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:04:37,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:04:37 WrapperNode [2022-12-14 11:04:37,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:04:37,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:04:37,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:04:37,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:04:37,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:04:37" (1/1) ... [2022-12-14 11:04:37,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:04:37" (1/1) ... [2022-12-14 11:04:37,281 INFO L138 Inliner]: procedures = 369, calls = 39, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 223 [2022-12-14 11:04:37,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:04:37,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:04:37,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:04:37,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:04:37,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:04:37" (1/1) ... [2022-12-14 11:04:37,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:04:37" (1/1) ... [2022-12-14 11:04:37,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:04:37" (1/1) ... [2022-12-14 11:04:37,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:04:37" (1/1) ... [2022-12-14 11:04:37,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:04:37" (1/1) ... [2022-12-14 11:04:37,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:04:37" (1/1) ... [2022-12-14 11:04:37,315 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:04:37" (1/1) ... [2022-12-14 11:04:37,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:04:37" (1/1) ... [2022-12-14 11:04:37,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:04:37,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:04:37,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:04:37,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:04:37,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:04:37" (1/1) ... [2022-12-14 11:04:37,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:04:37,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caa85072-8550-46d8-90f5-00897c792440/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:04:37,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caa85072-8550-46d8-90f5-00897c792440/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:04:37,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caa85072-8550-46d8-90f5-00897c792440/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:04:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:04:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:04:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:04:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-12-14 11:04:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-12-14 11:04:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:04:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:04:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-12-14 11:04:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-12-14 11:04:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:04:37,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:04:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:04:37,380 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 11:04:37,503 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:04:37,505 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:04:37,838 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:04:37,848 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:04:37,848 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 11:04:37,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:04:37 BoogieIcfgContainer [2022-12-14 11:04:37,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:04:37,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:04:37,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:04:37,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:04:37,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:04:36" (1/3) ... [2022-12-14 11:04:37,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28484ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:04:37, skipping insertion in model container [2022-12-14 11:04:37,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:04:37" (2/3) ... [2022-12-14 11:04:37,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28484ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:04:37, skipping insertion in model container [2022-12-14 11:04:37,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:04:37" (3/3) ... [2022-12-14 11:04:37,858 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5.i [2022-12-14 11:04:37,865 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 11:04:37,872 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:04:37,872 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-12-14 11:04:37,872 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 11:04:37,931 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-14 11:04:37,962 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 11:04:37,976 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 291 places, 306 transitions, 634 flow [2022-12-14 11:04:37,979 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 291 places, 306 transitions, 634 flow [2022-12-14 11:04:37,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 291 places, 306 transitions, 634 flow [2022-12-14 11:04:38,146 INFO L130 PetriNetUnfolder]: 43/625 cut-off events. [2022-12-14 11:04:38,147 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-14 11:04:38,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 625 events. 43/625 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2648 event pairs, 0 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 330. Up to 8 conditions per place. [2022-12-14 11:04:38,163 INFO L119 LiptonReduction]: Number of co-enabled transitions 14204 [2022-12-14 11:05:16,800 WARN L233 SmtUtils]: Spent 20.77s on a formula simplification. DAG size of input: 244 DAG size of output: 235 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:05:28,559 WARN L233 SmtUtils]: Spent 11.76s on a formula simplification that was a NOOP. DAG size: 235 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:05:56,215 WARN L233 SmtUtils]: Spent 27.65s on a formula simplification. DAG size of input: 260 DAG size of output: 249 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:06:09,092 WARN L233 SmtUtils]: Spent 12.88s on a formula simplification that was a NOOP. DAG size: 248 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:06:09,289 INFO L134 LiptonReduction]: Checked pairs total: 37215 [2022-12-14 11:06:09,289 INFO L136 LiptonReduction]: Total number of compositions: 336 [2022-12-14 11:06:09,295 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67 places, 69 transitions, 160 flow [2022-12-14 11:06:09,386 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3208 states, 2920 states have (on average 3.022945205479452) internal successors, (8827), 3207 states have internal predecessors, (8827), 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) [2022-12-14 11:06:09,402 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:06:09,405 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=FINITE_AUTOMATA, 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;@2fb5dc05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:06:09,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-12-14 11:06:09,412 INFO L276 IsEmpty]: Start isEmpty. Operand has 3208 states, 2920 states have (on average 3.022945205479452) internal successors, (8827), 3207 states have internal predecessors, (8827), 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) [2022-12-14 11:06:09,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 11:06:09,416 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:06:09,416 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 11:06:09,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2022-12-14 11:06:09,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:06:09,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1104, now seen corresponding path program 1 times [2022-12-14 11:06:09,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:06:09,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729646210] [2022-12-14 11:06:09,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:06:09,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:06:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:06:09,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:06:09,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:06:09,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729646210] [2022-12-14 11:06:09,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729646210] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:06:09,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:06:09,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 11:06:09,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057012632] [2022-12-14 11:06:09,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:06:09,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:06:09,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:06:09,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:06:09,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:06:09,549 INFO L87 Difference]: Start difference. First operand has 3208 states, 2920 states have (on average 3.022945205479452) internal successors, (8827), 3207 states have internal predecessors, (8827), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 11:06:09,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:06:09,691 INFO L93 Difference]: Finished difference Result 1840 states and 5015 transitions. [2022-12-14 11:06:09,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:06:09,694 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-12-14 11:06:09,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:06:09,717 INFO L225 Difference]: With dead ends: 1840 [2022-12-14 11:06:09,718 INFO L226 Difference]: Without dead ends: 1781 [2022-12-14 11:06:09,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:06:09,722 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:06:09,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:06:09,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2022-12-14 11:06:09,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1781. [2022-12-14 11:06:09,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1781 states, 1710 states have (on average 2.8362573099415203) internal successors, (4850), 1780 states have internal predecessors, (4850), 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) [2022-12-14 11:06:09,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 4850 transitions. [2022-12-14 11:06:09,831 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 4850 transitions. Word has length 1 [2022-12-14 11:06:09,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:06:09,831 INFO L495 AbstractCegarLoop]: Abstraction has 1781 states and 4850 transitions. [2022-12-14 11:06:09,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 11:06:09,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 4850 transitions. [2022-12-14 11:06:09,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 11:06:09,832 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:06:09,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 11:06:09,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:06:09,833 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting setThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2022-12-14 11:06:09,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:06:09,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1463002150, now seen corresponding path program 1 times [2022-12-14 11:06:09,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:06:09,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423152865] [2022-12-14 11:06:09,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:06:09,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:06:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:06:10,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:06:10,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:06:10,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423152865] [2022-12-14 11:06:10,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423152865] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:06:10,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:06:10,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:06:10,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442492755] [2022-12-14 11:06:10,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:06:10,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:06:10,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:06:10,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:06:10,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:06:10,008 INFO L87 Difference]: Start difference. First operand 1781 states and 4850 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-14 11:06:10,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:06:10,193 INFO L93 Difference]: Finished difference Result 1928 states and 5290 transitions. [2022-12-14 11:06:10,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:06:10,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-12-14 11:06:10,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:06:10,200 INFO L225 Difference]: With dead ends: 1928 [2022-12-14 11:06:10,200 INFO L226 Difference]: Without dead ends: 1928 [2022-12-14 11:06:10,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:06:10,201 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 37 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:06:10,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 42 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 11:06:10,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2022-12-14 11:06:10,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1928. [2022-12-14 11:06:10,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1928 states, 1858 states have (on average 2.8471474703982778) internal successors, (5290), 1927 states have internal predecessors, (5290), 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) [2022-12-14 11:06:10,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1928 states to 1928 states and 5290 transitions. [2022-12-14 11:06:10,240 INFO L78 Accepts]: Start accepts. Automaton has 1928 states and 5290 transitions. Word has length 6 [2022-12-14 11:06:10,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:06:10,241 INFO L495 AbstractCegarLoop]: Abstraction has 1928 states and 5290 transitions. [2022-12-14 11:06:10,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-14 11:06:10,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1928 states and 5290 transitions. [2022-12-14 11:06:10,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 11:06:10,241 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:06:10,241 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-12-14 11:06:10,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:06:10,242 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2022-12-14 11:06:10,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:06:10,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1462803634, now seen corresponding path program 1 times [2022-12-14 11:06:10,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:06:10,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200630847] [2022-12-14 11:06:10,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:06:10,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:06:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:06:10,315 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:06:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:06:10,358 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 11:06:10,359 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:06:10,359 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2022-12-14 11:06:10,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2022-12-14 11:06:10,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2022-12-14 11:06:10,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2022-12-14 11:06:10,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2022-12-14 11:06:10,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2022-12-14 11:06:10,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2022-12-14 11:06:10,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr4ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2022-12-14 11:06:10,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2022-12-14 11:06:10,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2022-12-14 11:06:10,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2022-12-14 11:06:10,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2022-12-14 11:06:10,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2022-12-14 11:06:10,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2022-12-14 11:06:10,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2022-12-14 11:06:10,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2022-12-14 11:06:10,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2022-12-14 11:06:10,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2022-12-14 11:06:10,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2022-12-14 11:06:10,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2022-12-14 11:06:10,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2022-12-14 11:06:10,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2022-12-14 11:06:10,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2022-12-14 11:06:10,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2022-12-14 11:06:10,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2022-12-14 11:06:10,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 33 remaining) [2022-12-14 11:06:10,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2022-12-14 11:06:10,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2022-12-14 11:06:10,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2022-12-14 11:06:10,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2022-12-14 11:06:10,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2022-12-14 11:06:10,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2022-12-14 11:06:10,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr4ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2022-12-14 11:06:10,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:06:10,366 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 11:06:10,368 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 11:06:10,368 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-14 11:06:10,388 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-12-14 11:06:10,391 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 11:06:10,391 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 349 places, 368 transitions, 784 flow [2022-12-14 11:06:10,391 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 349 places, 368 transitions, 784 flow [2022-12-14 11:06:10,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 349 places, 368 transitions, 784 flow [2022-12-14 11:06:10,637 INFO L130 PetriNetUnfolder]: 167/1913 cut-off events. [2022-12-14 11:06:10,637 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-12-14 11:06:10,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2010 conditions, 1913 events. 167/1913 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 11725 event pairs, 1 based on Foata normal form. 0/1604 useless extension candidates. Maximal degree in co-relation 1104. Up to 32 conditions per place. [2022-12-14 11:06:10,723 INFO L119 LiptonReduction]: Number of co-enabled transitions 35748 [2022-12-14 11:06:50,677 WARN L233 SmtUtils]: Spent 20.72s on a formula simplification. DAG size of input: 244 DAG size of output: 235 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:07:02,553 WARN L233 SmtUtils]: Spent 11.87s on a formula simplification that was a NOOP. DAG size: 235 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:07:32,190 WARN L233 SmtUtils]: Spent 29.63s on a formula simplification. DAG size of input: 260 DAG size of output: 249 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:07:45,698 WARN L233 SmtUtils]: Spent 13.51s on a formula simplification that was a NOOP. DAG size: 248 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:07:45,714 INFO L134 LiptonReduction]: Checked pairs total: 121803 [2022-12-14 11:07:45,714 INFO L136 LiptonReduction]: Total number of compositions: 368 [2022-12-14 11:07:45,716 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 105 transitions, 258 flow [2022-12-14 11:07:59,737 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 632920 states, 625819 states have (on average 4.703299196732601) internal successors, (2943414), 632919 states have internal predecessors, (2943414), 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) [2022-12-14 11:07:59,738 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:07:59,739 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=FINITE_AUTOMATA, 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;@2fb5dc05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:07:59,739 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2022-12-14 11:08:00,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 632920 states, 625819 states have (on average 4.703299196732601) internal successors, (2943414), 632919 states have internal predecessors, (2943414), 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) [2022-12-14 11:08:00,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 11:08:00,548 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:08:00,548 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 11:08:00,548 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-12-14 11:08:00,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:08:00,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1906, now seen corresponding path program 1 times [2022-12-14 11:08:00,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:08:00,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158001432] [2022-12-14 11:08:00,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:08:00,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:08:00,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:08:00,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:08:00,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:08:00,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158001432] [2022-12-14 11:08:00,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158001432] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:08:00,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:08:00,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 11:08:00,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517887710] [2022-12-14 11:08:00,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:08:00,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:08:00,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:08:00,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:08:00,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:08:01,468 INFO L87 Difference]: Start difference. First operand has 632920 states, 625819 states have (on average 4.703299196732601) internal successors, (2943414), 632919 states have internal predecessors, (2943414), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 11:08:06,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:08:06,175 INFO L93 Difference]: Finished difference Result 355063 states and 1649988 transitions. [2022-12-14 11:08:06,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:08:06,177 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-12-14 11:08:06,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:08:08,649 INFO L225 Difference]: With dead ends: 355063 [2022-12-14 11:08:08,650 INFO L226 Difference]: Without dead ends: 354524 [2022-12-14 11:08:08,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:08:08,651 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:08:08,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:08:09,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354524 states. [2022-12-14 11:08:18,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354524 to 354524. [2022-12-14 11:08:18,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354524 states, 353182 states have (on average 4.664614844471123) internal successors, (1647458), 354523 states have internal predecessors, (1647458), 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) [2022-12-14 11:08:21,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354524 states to 354524 states and 1647458 transitions. [2022-12-14 11:08:21,050 INFO L78 Accepts]: Start accepts. Automaton has 354524 states and 1647458 transitions. Word has length 1 [2022-12-14 11:08:21,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:08:21,050 INFO L495 AbstractCegarLoop]: Abstraction has 354524 states and 1647458 transitions. [2022-12-14 11:08:21,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 11:08:21,050 INFO L276 IsEmpty]: Start isEmpty. Operand 354524 states and 1647458 transitions. [2022-12-14 11:08:21,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 11:08:21,051 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:08:21,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 11:08:21,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 11:08:21,051 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting setThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-12-14 11:08:21,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:08:21,051 INFO L85 PathProgramCache]: Analyzing trace with hash 598442794, now seen corresponding path program 1 times [2022-12-14 11:08:21,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:08:21,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138519668] [2022-12-14 11:08:21,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:08:21,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:08:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:08:21,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:08:21,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:08:21,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138519668] [2022-12-14 11:08:21,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138519668] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:08:21,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:08:21,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:08:21,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137507707] [2022-12-14 11:08:21,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:08:21,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:08:21,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:08:21,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:08:21,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:08:21,112 INFO L87 Difference]: Start difference. First operand 354524 states and 1647458 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-14 11:08:25,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:08:25,198 INFO L93 Difference]: Finished difference Result 390263 states and 1819855 transitions. [2022-12-14 11:08:25,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:08:25,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-12-14 11:08:25,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:08:27,990 INFO L225 Difference]: With dead ends: 390263 [2022-12-14 11:08:27,990 INFO L226 Difference]: Without dead ends: 390263 [2022-12-14 11:08:27,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:08:27,991 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 69 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:08:27,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 78 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 11:08:28,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390263 states. [2022-12-14 11:08:38,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390263 to 390263. [2022-12-14 11:08:38,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390263 states, 388921 states have (on average 4.67924077126203) internal successors, (1819855), 390262 states have internal predecessors, (1819855), 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) [2022-12-14 11:08:41,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390263 states to 390263 states and 1819855 transitions. [2022-12-14 11:08:41,187 INFO L78 Accepts]: Start accepts. Automaton has 390263 states and 1819855 transitions. Word has length 6 [2022-12-14 11:08:41,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:08:41,188 INFO L495 AbstractCegarLoop]: Abstraction has 390263 states and 1819855 transitions. [2022-12-14 11:08:41,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-14 11:08:41,188 INFO L276 IsEmpty]: Start isEmpty. Operand 390263 states and 1819855 transitions. [2022-12-14 11:08:41,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 11:08:41,188 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:08:41,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 11:08:41,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 11:08:41,188 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2022-12-14 11:08:41,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:08:41,189 INFO L85 PathProgramCache]: Analyzing trace with hash 616692439, now seen corresponding path program 1 times [2022-12-14 11:08:41,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:08:41,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47429340] [2022-12-14 11:08:41,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:08:41,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:08:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:08:41,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:08:41,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:08:41,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47429340] [2022-12-14 11:08:41,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47429340] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:08:41,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:08:41,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:08:41,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086879592] [2022-12-14 11:08:41,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:08:41,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:08:41,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:08:41,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:08:41,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:08:41,241 INFO L87 Difference]: Start difference. First operand 390263 states and 1819855 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-14 11:08:47,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:08:47,977 INFO L93 Difference]: Finished difference Result 727979 states and 3326031 transitions. [2022-12-14 11:08:47,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:08:47,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-12-14 11:08:47,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:08:53,543 INFO L225 Difference]: With dead ends: 727979 [2022-12-14 11:08:53,543 INFO L226 Difference]: Without dead ends: 727979 [2022-12-14 11:08:53,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:08:53,544 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 67 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:08:53,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 60 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]