./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/bin/utaipan-Q6hlc19bkW --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 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:44:05,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:44:05,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:44:05,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:44:05,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:44:05,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:44:05,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:44:05,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:44:05,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:44:05,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:44:05,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:44:05,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:44:05,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:44:05,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:44:05,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:44:05,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:44:05,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:44:05,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:44:05,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:44:05,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:44:05,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:44:05,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:44:05,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:44:05,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:44:05,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:44:05,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:44:05,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:44:05,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:44:05,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:44:05,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:44:05,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:44:05,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:44:05,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:44:05,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:44:05,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:44:05,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:44:05,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:44:05,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:44:05,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:44:05,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:44:05,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:44:05,546 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 15:44:05,572 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:44:05,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:44:05,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:44:05,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:44:05,574 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:44:05,574 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:44:05,574 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:44:05,575 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:44:05,575 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:44:05,575 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:44:05,576 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:44:05,576 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:44:05,576 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:44:05,576 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:44:05,577 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:44:05,577 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:44:05,577 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:44:05,578 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:44:05,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:44:05,579 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:44:05,579 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:44:05,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:44:05,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:44:05,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:44:05,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:44:05,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:44:05,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:44:05,581 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 15:44:05,581 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:44:05,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:44:05,582 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:44:05,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:44:05,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:44:05,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:44:05,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:44:05,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:44:05,584 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:44:05,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:44:05,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:44:05,584 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:44:05,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:44:05,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:44:05,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:44:05,585 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_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2022-11-23 15:44:05,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:44:05,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:44:05,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:44:05,959 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:44:05,960 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:44:05,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2022-11-23 15:44:09,059 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:44:09,373 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:44:09,373 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2022-11-23 15:44:09,390 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/bin/utaipan-Q6hlc19bkW/data/10600c2bf/02c8b8ca70204fc8ac49074e0edd4cce/FLAG38a250dac [2022-11-23 15:44:09,404 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/bin/utaipan-Q6hlc19bkW/data/10600c2bf/02c8b8ca70204fc8ac49074e0edd4cce [2022-11-23 15:44:09,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:44:09,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:44:09,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:44:09,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:44:09,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:44:09,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:44:09" (1/1) ... [2022-11-23 15:44:09,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a2aaad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:09, skipping insertion in model container [2022-11-23 15:44:09,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:44:09" (1/1) ... [2022-11-23 15:44:09,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:44:09,503 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:44:10,115 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_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2022-11-23 15:44:10,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:44:10,176 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:44:10,246 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_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2022-11-23 15:44:10,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:44:10,418 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:44:10,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:10 WrapperNode [2022-11-23 15:44:10,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:44:10,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:44:10,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:44:10,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:44:10,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:10" (1/1) ... [2022-11-23 15:44:10,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:10" (1/1) ... [2022-11-23 15:44:10,533 INFO L138 Inliner]: procedures = 377, calls = 72, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 406 [2022-11-23 15:44:10,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:44:10,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:44:10,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:44:10,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:44:10,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:10" (1/1) ... [2022-11-23 15:44:10,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:10" (1/1) ... [2022-11-23 15:44:10,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:10" (1/1) ... [2022-11-23 15:44:10,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:10" (1/1) ... [2022-11-23 15:44:10,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:10" (1/1) ... [2022-11-23 15:44:10,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:10" (1/1) ... [2022-11-23 15:44:10,585 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:10" (1/1) ... [2022-11-23 15:44:10,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:10" (1/1) ... [2022-11-23 15:44:10,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:44:10,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:44:10,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:44:10,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:44:10,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:10" (1/1) ... [2022-11-23 15:44:10,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:44:10,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:44:10,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:44:10,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2a2c699-7977-4a20-93a0-006ffb1ee0e5/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:44:10,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:44:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:44:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:44:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:44:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:44:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:44:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 15:44:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:44:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:44:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:44:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-23 15:44:10,680 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-23 15:44:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:44:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:44:10,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:44:10,682 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 15:44:10,941 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:44:10,943 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:44:11,796 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:44:11,807 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:44:11,807 INFO L300 CfgBuilder]: Removed 23 assume(true) statements. [2022-11-23 15:44:11,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:44:11 BoogieIcfgContainer [2022-11-23 15:44:11,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:44:11,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:44:11,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:44:11,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:44:11,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:44:09" (1/3) ... [2022-11-23 15:44:11,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5abbdfe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:44:11, skipping insertion in model container [2022-11-23 15:44:11,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:10" (2/3) ... [2022-11-23 15:44:11,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5abbdfe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:44:11, skipping insertion in model container [2022-11-23 15:44:11,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:44:11" (3/3) ... [2022-11-23 15:44:11,818 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2022-11-23 15:44:11,826 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 15:44:11,836 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:44:11,837 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-23 15:44:11,837 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 15:44:12,048 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-23 15:44:12,109 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 15:44:12,127 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 424 places, 450 transitions, 908 flow [2022-11-23 15:44:12,130 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 424 places, 450 transitions, 908 flow [2022-11-23 15:44:12,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 424 places, 450 transitions, 908 flow [2022-11-23 15:44:12,471 INFO L130 PetriNetUnfolder]: 45/653 cut-off events. [2022-11-23 15:44:12,472 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 15:44:12,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 659 conditions, 653 events. 45/653 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2121 event pairs, 0 based on Foata normal form. 0/563 useless extension candidates. Maximal degree in co-relation 361. Up to 8 conditions per place. [2022-11-23 15:44:12,512 INFO L119 LiptonReduction]: Number of co-enabled transitions 63954 [2022-11-23 15:45:29,254 WARN L233 SmtUtils]: Spent 7.03s on a formula simplification that was a NOOP. DAG size: 152 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:45:39,844 WARN L233 SmtUtils]: Spent 7.25s on a formula simplification that was a NOOP. DAG size: 152 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:45:44,886 WARN L233 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 132 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:46:12,196 WARN L233 SmtUtils]: Spent 9.10s on a formula simplification. DAG size of input: 236 DAG size of output: 234 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:46:36,867 WARN L233 SmtUtils]: Spent 20.44s on a formula simplification. DAG size of input: 236 DAG size of output: 234 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:46:46,786 WARN L233 SmtUtils]: Spent 9.92s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:46:48,072 INFO L134 LiptonReduction]: Checked pairs total: 673220 [2022-11-23 15:46:48,073 INFO L136 LiptonReduction]: Total number of compositions: 331 [2022-11-23 15:46:48,083 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 209 places, 231 transitions, 470 flow [2022-11-23 15:46:48,467 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9979 states, 9774 states have (on average 2.254245958665848) internal successors, (22033), 9978 states have internal predecessors, (22033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:46:48,492 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:46:48,497 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;@15af4144, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:46:48,497 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-11-23 15:46:48,538 INFO L276 IsEmpty]: Start isEmpty. Operand has 9979 states, 9774 states have (on average 2.254245958665848) internal successors, (22033), 9978 states have internal predecessors, (22033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:46:48,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-23 15:46:48,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:46:48,543 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-23 15:46:48,544 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 15:46:48,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:46:48,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1491, now seen corresponding path program 1 times [2022-11-23 15:46:48,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:46:48,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696472574] [2022-11-23 15:46:48,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:46:48,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:46:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:46:48,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:46:48,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:46:48,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696472574] [2022-11-23 15:46:48,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696472574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:46:48,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:46:48,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 15:46:48,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042934055] [2022-11-23 15:46:48,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:46:48,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:46:48,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:46:48,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:46:48,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:46:48,766 INFO L87 Difference]: Start difference. First operand has 9979 states, 9774 states have (on average 2.254245958665848) internal successors, (22033), 9978 states have internal predecessors, (22033), 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) [2022-11-23 15:46:49,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:46:49,027 INFO L93 Difference]: Finished difference Result 9975 states and 19923 transitions. [2022-11-23 15:46:49,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:46:49,029 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 [2022-11-23 15:46:49,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:46:49,088 INFO L225 Difference]: With dead ends: 9975 [2022-11-23 15:46:49,088 INFO L226 Difference]: Without dead ends: 9969 [2022-11-23 15:46:49,089 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 [2022-11-23 15:46:49,093 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:46:49,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:46:49,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9969 states. [2022-11-23 15:46:49,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9969 to 9969. [2022-11-23 15:46:49,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9969 states, 9770 states have (on average 2.037973387922211) internal successors, (19911), 9968 states have internal predecessors, (19911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:46:49,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9969 states to 9969 states and 19911 transitions. [2022-11-23 15:46:49,554 INFO L78 Accepts]: Start accepts. Automaton has 9969 states and 19911 transitions. Word has length 1 [2022-11-23 15:46:49,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:46:49,554 INFO L495 AbstractCegarLoop]: Abstraction has 9969 states and 19911 transitions. [2022-11-23 15:46:49,555 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) [2022-11-23 15:46:49,556 INFO L276 IsEmpty]: Start isEmpty. Operand 9969 states and 19911 transitions. [2022-11-23 15:46:49,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 15:46:49,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:46:49,556 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-23 15:46:49,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:46:49,557 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-23 15:46:49,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:46:49,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1540376501, now seen corresponding path program 1 times [2022-11-23 15:46:49,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:46:49,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030170376] [2022-11-23 15:46:49,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:46:49,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:46:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:46:49,687 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:46:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:46:49,798 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:46:49,799 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:46:49,801 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2022-11-23 15:46:49,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2022-11-23 15:46:49,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2022-11-23 15:46:49,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2022-11-23 15:46:49,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2022-11-23 15:46:49,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2022-11-23 15:46:49,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2022-11-23 15:46:49,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2022-11-23 15:46:49,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2022-11-23 15:46:49,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2022-11-23 15:46:49,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2022-11-23 15:46:49,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2022-11-23 15:46:49,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2022-11-23 15:46:49,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2022-11-23 15:46:49,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2022-11-23 15:46:49,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2022-11-23 15:46:49,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2022-11-23 15:46:49,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2022-11-23 15:46:49,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2022-11-23 15:46:49,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2022-11-23 15:46:49,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2022-11-23 15:46:49,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2022-11-23 15:46:49,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2022-11-23 15:46:49,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2022-11-23 15:46:49,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2022-11-23 15:46:49,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2022-11-23 15:46:49,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2022-11-23 15:46:49,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2022-11-23 15:46:49,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2022-11-23 15:46:49,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2022-11-23 15:46:49,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2022-11-23 15:46:49,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2022-11-23 15:46:49,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2022-11-23 15:46:49,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2022-11-23 15:46:49,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2022-11-23 15:46:49,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2022-11-23 15:46:49,813 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2022-11-23 15:46:49,813 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2022-11-23 15:46:49,813 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2022-11-23 15:46:49,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:46:49,816 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 15:46:49,818 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 15:46:49,818 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-23 15:46:49,951 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-23 15:46:49,965 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 15:46:49,965 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 568 places, 605 transitions, 1228 flow [2022-11-23 15:46:49,966 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 568 places, 605 transitions, 1228 flow [2022-11-23 15:46:49,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 568 places, 605 transitions, 1228 flow [2022-11-23 15:46:50,452 INFO L130 PetriNetUnfolder]: 76/1042 cut-off events. [2022-11-23 15:46:50,452 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-23 15:46:50,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1056 conditions, 1042 events. 76/1042 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4712 event pairs, 0 based on Foata normal form. 0/895 useless extension candidates. Maximal degree in co-relation 655. Up to 12 conditions per place. [2022-11-23 15:46:50,531 INFO L119 LiptonReduction]: Number of co-enabled transitions 178092 [2022-11-23 15:48:34,038 WARN L233 SmtUtils]: Spent 10.97s on a formula simplification that was a NOOP. DAG size: 167 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:48:48,523 WARN L233 SmtUtils]: Spent 12.07s on a formula simplification that was a NOOP. DAG size: 167 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:48:59,917 WARN L233 SmtUtils]: Spent 6.77s on a formula simplification. DAG size of input: 236 DAG size of output: 234 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:49:26,650 WARN L233 SmtUtils]: Spent 22.88s on a formula simplification. DAG size of input: 236 DAG size of output: 234 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:49:38,456 WARN L233 SmtUtils]: Spent 11.80s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 15:49:42,487 INFO L134 LiptonReduction]: Checked pairs total: 1995553 [2022-11-23 15:49:42,487 INFO L136 LiptonReduction]: Total number of compositions: 434 [2022-11-23 15:49:42,490 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 298 places, 330 transitions, 678 flow [2022-11-23 15:50:07,175 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 856410 states, 854148 states have (on average 3.3321157457489803) internal successors, (2846120), 856409 states have internal predecessors, (2846120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:50:07,181 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:50:07,184 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;@15af4144, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:50:07,187 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2022-11-23 15:50:10,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 856410 states, 854148 states have (on average 3.3321157457489803) internal successors, (2846120), 856409 states have internal predecessors, (2846120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:50:10,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-23 15:50:10,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:50:10,961 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-23 15:50:10,962 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2022-11-23 15:50:10,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:50:10,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2677, now seen corresponding path program 1 times [2022-11-23 15:50:10,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:50:10,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243789085] [2022-11-23 15:50:10,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:50:10,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:50:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:50:11,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:50:11,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:50:11,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243789085] [2022-11-23 15:50:11,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243789085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:50:11,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:50:11,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 15:50:11,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660729349] [2022-11-23 15:50:11,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:50:11,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:50:11,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:50:11,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:50:11,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:50:12,285 INFO L87 Difference]: Start difference. First operand has 856410 states, 854148 states have (on average 3.3321157457489803) internal successors, (2846120), 856409 states have internal predecessors, (2846120), 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) [2022-11-23 15:50:24,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:50:24,636 INFO L93 Difference]: Finished difference Result 856406 states and 2565505 transitions. [2022-11-23 15:50:24,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:50:24,638 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 [2022-11-23 15:50:24,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:50:30,349 INFO L225 Difference]: With dead ends: 856406 [2022-11-23 15:50:30,349 INFO L226 Difference]: Without dead ends: 856370 [2022-11-23 15:50:30,350 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 [2022-11-23 15:50:30,351 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:50:30,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 193 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]