./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_10-equ_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df65c87-9919-46fd-9d36-82bb65e14be3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df65c87-9919-46fd-9d36-82bb65e14be3/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_2df65c87-9919-46fd-9d36-82bb65e14be3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df65c87-9919-46fd-9d36-82bb65e14be3/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_10-equ_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df65c87-9919-46fd-9d36-82bb65e14be3/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_2df65c87-9919-46fd-9d36-82bb65e14be3/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 fd55bbfa1518dd7815f07d7de8c2030374bbc7b7998290c12df563b95f65f709 --- 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 11:45:37,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:45:37,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:45:37,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:45:37,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:45:37,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:45:37,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:45:37,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:45:37,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:45:37,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:45:37,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:45:37,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:45:37,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:45:37,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:45:37,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:45:37,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:45:37,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:45:37,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:45:37,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:45:37,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:45:37,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:45:37,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:45:37,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:45:37,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:45:37,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:45:37,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:45:37,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:45:37,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:45:37,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:45:37,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:45:37,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:45:37,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:45:37,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:45:37,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:45:37,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:45:37,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:45:37,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:45:37,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:45:37,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:45:37,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:45:37,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:45:37,530 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df65c87-9919-46fd-9d36-82bb65e14be3/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 11:45:37,555 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:45:37,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:45:37,556 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:45:37,556 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:45:37,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:45:37,557 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:45:37,557 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:45:37,557 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:45:37,557 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:45:37,558 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:45:37,558 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:45:37,558 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:45:37,558 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:45:37,558 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:45:37,558 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:45:37,559 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:45:37,559 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:45:37,559 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:45:37,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:45:37,560 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:45:37,560 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:45:37,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:45:37,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:45:37,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:45:37,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:45:37,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:45:37,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:45:37,561 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 11:45:37,562 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:45:37,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:45:37,562 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:45:37,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:45:37,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:45:37,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:45:37,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:45:37,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:45:37,563 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:45:37,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:45:37,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:45:37,564 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:45:37,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:45:37,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:45:37,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:45:37,564 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_2df65c87-9919-46fd-9d36-82bb65e14be3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df65c87-9919-46fd-9d36-82bb65e14be3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd55bbfa1518dd7815f07d7de8c2030374bbc7b7998290c12df563b95f65f709 [2022-12-14 11:45:37,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:45:37,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:45:37,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:45:37,793 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:45:37,793 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:45:37,794 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df65c87-9919-46fd-9d36-82bb65e14be3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/06-symbeq_10-equ_rc.i [2022-12-14 11:45:40,412 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:45:40,647 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:45:40,647 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df65c87-9919-46fd-9d36-82bb65e14be3/sv-benchmarks/c/goblint-regression/06-symbeq_10-equ_rc.i [2022-12-14 11:45:40,660 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df65c87-9919-46fd-9d36-82bb65e14be3/bin/utaipan-gh47qXpMRh/data/ef0ef4753/03691dd9204446f58556dfe267e2a9ae/FLAGb8680c94f [2022-12-14 11:45:40,672 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df65c87-9919-46fd-9d36-82bb65e14be3/bin/utaipan-gh47qXpMRh/data/ef0ef4753/03691dd9204446f58556dfe267e2a9ae [2022-12-14 11:45:40,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:45:40,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:45:40,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:45:40,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:45:40,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:45:40,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:45:40" (1/1) ... [2022-12-14 11:45:40,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@122ebee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:40, skipping insertion in model container [2022-12-14 11:45:40,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:45:40" (1/1) ... [2022-12-14 11:45:40,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:45:40,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:45:41,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:45:41,017 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:45:41,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:45:41,098 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:45:41,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:41 WrapperNode [2022-12-14 11:45:41,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:45:41,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:45:41,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:45:41,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:45:41,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:41" (1/1) ... [2022-12-14 11:45:41,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:41" (1/1) ... [2022-12-14 11:45:41,141 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2022-12-14 11:45:41,142 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:45:41,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:45:41,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:45:41,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:45:41,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:41" (1/1) ... [2022-12-14 11:45:41,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:41" (1/1) ... [2022-12-14 11:45:41,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:41" (1/1) ... [2022-12-14 11:45:41,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:41" (1/1) ... [2022-12-14 11:45:41,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:41" (1/1) ... [2022-12-14 11:45:41,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:41" (1/1) ... [2022-12-14 11:45:41,163 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:41" (1/1) ... [2022-12-14 11:45:41,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:41" (1/1) ... [2022-12-14 11:45:41,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:45:41,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:45:41,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:45:41,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:45:41,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:41" (1/1) ... [2022-12-14 11:45:41,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:45:41,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df65c87-9919-46fd-9d36-82bb65e14be3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:45:41,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df65c87-9919-46fd-9d36-82bb65e14be3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:45:41,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df65c87-9919-46fd-9d36-82bb65e14be3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:45:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:45:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:45:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:45:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 11:45:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:45:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 11:45:41,245 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 11:45:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:45:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:45:41,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:45:41,246 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 11:45:41,360 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:45:41,362 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:45:41,530 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:45:41,537 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:45:41,537 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 11:45:41,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:45:41 BoogieIcfgContainer [2022-12-14 11:45:41,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:45:41,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:45:41,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:45:41,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:45:41,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:45:40" (1/3) ... [2022-12-14 11:45:41,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a1add9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:45:41, skipping insertion in model container [2022-12-14 11:45:41,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:45:41" (2/3) ... [2022-12-14 11:45:41,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a1add9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:45:41, skipping insertion in model container [2022-12-14 11:45:41,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:45:41" (3/3) ... [2022-12-14 11:45:41,547 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_10-equ_rc.i [2022-12-14 11:45:41,555 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 11:45:41,565 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:45:41,565 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 11:45:41,565 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 11:45:41,610 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 11:45:41,639 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 11:45:41,653 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 89 transitions, 183 flow [2022-12-14 11:45:41,655 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 89 transitions, 183 flow [2022-12-14 11:45:41,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 89 transitions, 183 flow [2022-12-14 11:45:41,699 INFO L130 PetriNetUnfolder]: 1/88 cut-off events. [2022-12-14 11:45:41,699 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 11:45:41,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 88 events. 1/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-12-14 11:45:41,704 INFO L119 LiptonReduction]: Number of co-enabled transitions 600 [2022-12-14 11:45:45,116 INFO L134 LiptonReduction]: Checked pairs total: 2769 [2022-12-14 11:45:45,116 INFO L136 LiptonReduction]: Total number of compositions: 74 [2022-12-14 11:45:45,121 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 21 transitions, 47 flow [2022-12-14 11:45:45,133 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 98 states, 95 states have (on average 1.831578947368421) internal successors, (174), 97 states have internal predecessors, (174), 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 11:45:45,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:45:45,149 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;@38c799bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:45:45,150 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 11:45:45,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 95 states have (on average 1.831578947368421) internal successors, (174), 97 states have internal predecessors, (174), 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 11:45:45,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 11:45:45,155 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:45:45,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:45:45,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-12-14 11:45:45,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:45:45,159 INFO L85 PathProgramCache]: Analyzing trace with hash 139523952, now seen corresponding path program 1 times [2022-12-14 11:45:45,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:45:45,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659316910] [2022-12-14 11:45:45,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:45:45,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:45:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:45:45,589 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 11:45:45,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:45:45,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659316910] [2022-12-14 11:45:45,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659316910] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:45:45,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:45:45,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:45:45,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826739389] [2022-12-14 11:45:45,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:45:45,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:45:45,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:45:45,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:45:45,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:45:45,614 INFO L87 Difference]: Start difference. First operand has 98 states, 95 states have (on average 1.831578947368421) internal successors, (174), 97 states have internal predecessors, (174), 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 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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 11:45:45,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:45:45,757 INFO L93 Difference]: Finished difference Result 128 states and 227 transitions. [2022-12-14 11:45:45,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:45:45,758 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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 9 [2022-12-14 11:45:45,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:45:45,764 INFO L225 Difference]: With dead ends: 128 [2022-12-14 11:45:45,764 INFO L226 Difference]: Without dead ends: 114 [2022-12-14 11:45:45,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:45:45,767 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:45:45,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 7 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:45:45,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-12-14 11:45:45,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 109. [2022-12-14 11:45:45,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 106 states have (on average 1.8113207547169812) internal successors, (192), 108 states have internal predecessors, (192), 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 11:45:45,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 192 transitions. [2022-12-14 11:45:45,793 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 192 transitions. Word has length 9 [2022-12-14 11:45:45,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:45:45,793 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 192 transitions. [2022-12-14 11:45:45,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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 11:45:45,794 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 192 transitions. [2022-12-14 11:45:45,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 11:45:45,794 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:45:45,794 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:45:45,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:45:45,794 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-12-14 11:45:45,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:45:45,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1911054098, now seen corresponding path program 1 times [2022-12-14 11:45:45,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:45:45,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313355405] [2022-12-14 11:45:45,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:45:45,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:45:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:45:45,967 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 11:45:45,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:45:45,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313355405] [2022-12-14 11:45:45,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313355405] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:45:45,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:45:45,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:45:45,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543058951] [2022-12-14 11:45:45,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:45:45,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:45:45,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:45:45,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:45:45,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:45:45,970 INFO L87 Difference]: Start difference. First operand 109 states and 192 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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 11:45:46,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:45:46,079 INFO L93 Difference]: Finished difference Result 137 states and 241 transitions. [2022-12-14 11:45:46,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:45:46,079 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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 9 [2022-12-14 11:45:46,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:45:46,081 INFO L225 Difference]: With dead ends: 137 [2022-12-14 11:45:46,081 INFO L226 Difference]: Without dead ends: 123 [2022-12-14 11:45:46,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:45:46,082 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:45:46,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 6 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:45:46,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-12-14 11:45:46,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 119. [2022-12-14 11:45:46,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 116 states have (on average 1.793103448275862) internal successors, (208), 118 states have internal predecessors, (208), 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 11:45:46,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 208 transitions. [2022-12-14 11:45:46,089 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 208 transitions. Word has length 9 [2022-12-14 11:45:46,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:45:46,090 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 208 transitions. [2022-12-14 11:45:46,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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 11:45:46,090 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 208 transitions. [2022-12-14 11:45:46,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 11:45:46,090 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:45:46,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:45:46,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:45:46,091 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-12-14 11:45:46,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:45:46,091 INFO L85 PathProgramCache]: Analyzing trace with hash -967782903, now seen corresponding path program 1 times [2022-12-14 11:45:46,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:45:46,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86259748] [2022-12-14 11:45:46,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:45:46,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:45:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:45:46,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:45:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:45:46,140 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 11:45:46,141 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:45:46,141 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2022-12-14 11:45:46,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-14 11:45:46,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2022-12-14 11:45:46,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2022-12-14 11:45:46,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:45:46,145 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 11:45:46,150 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 11:45:46,150 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:45:46,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:45:46 BasicIcfg [2022-12-14 11:45:46,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:45:46,169 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:45:46,169 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:45:46,169 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:45:46,169 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:45:41" (3/4) ... [2022-12-14 11:45:46,171 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 11:45:46,171 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:45:46,172 INFO L158 Benchmark]: Toolchain (without parser) took 5496.93ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 90.7MB in the beginning and 88.8MB in the end (delta: 1.8MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-12-14 11:45:46,172 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 121.6MB. Free memory was 97.0MB in the beginning and 96.9MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:45:46,173 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.15ms. Allocated memory is still 121.6MB. Free memory was 90.3MB in the beginning and 62.9MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 11:45:46,173 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.67ms. Allocated memory is still 121.6MB. Free memory was 62.9MB in the beginning and 60.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:45:46,173 INFO L158 Benchmark]: Boogie Preprocessor took 24.24ms. Allocated memory is still 121.6MB. Free memory was 60.6MB in the beginning and 59.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:45:46,174 INFO L158 Benchmark]: RCFGBuilder took 371.75ms. Allocated memory is still 121.6MB. Free memory was 58.6MB in the beginning and 83.9MB in the end (delta: -25.3MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2022-12-14 11:45:46,174 INFO L158 Benchmark]: TraceAbstraction took 4627.14ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 83.7MB in the beginning and 88.8MB in the end (delta: -5.1MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2022-12-14 11:45:46,175 INFO L158 Benchmark]: Witness Printer took 2.65ms. Allocated memory is still 146.8MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:45:46,177 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 121.6MB. Free memory was 97.0MB in the beginning and 96.9MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 423.15ms. Allocated memory is still 121.6MB. Free memory was 90.3MB in the beginning and 62.9MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.67ms. Allocated memory is still 121.6MB. Free memory was 62.9MB in the beginning and 60.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.24ms. Allocated memory is still 121.6MB. Free memory was 60.6MB in the beginning and 59.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 371.75ms. Allocated memory is still 121.6MB. Free memory was 58.6MB in the beginning and 83.9MB in the end (delta: -25.3MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4627.14ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 83.7MB in the beginning and 88.8MB in the end (delta: -5.1MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Witness Printer took 2.65ms. Allocated memory is still 146.8MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 92 PlacesBefore, 25 PlacesAfterwards, 89 TransitionsBefore, 21 TransitionsAfterwards, 600 CoEnabledTransitionPairs, 7 FixpointIterations, 51 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 2769 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 849, independent: 605, independent conditional: 0, independent unconditional: 605, dependent: 244, dependent conditional: 0, dependent unconditional: 244, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 354, independent: 318, independent conditional: 0, independent unconditional: 318, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 354, independent: 314, independent conditional: 0, independent unconditional: 314, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 121, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 849, independent: 287, independent conditional: 0, independent unconditional: 287, dependent: 208, dependent conditional: 0, dependent unconditional: 208, unknown: 354, unknown conditional: 0, unknown unconditional: 354] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 1019]: Data race detected Data race detected The following path leads to a data race: [L989-L993] 0 struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L1003] 0 int x = __VERIFIER_nondet_int(); [L1004] 0 pthread_t id; [L1005] 0 struct s *s; [L1006] 0 int *d; [L1007] 0 pthread_mutex_t *m; [L1008] COND FALSE 0 !(\read(x)) [L1012] 0 s = &B [L1013] 0 x++ [L1015] 0 m = &s->mutex [L1016] 0 d = &s->datum [L1017] FCALL, FORK 0 pthread_create(&id,((void *)0),t_fun,((void *)0)) VAL [A={1:0}, arg={0:0}, B={2:0}, d={2:0}, id={6:0}, m={2:12}, pthread_create(&id,((void *)0),t_fun,((void *)0))=-1, s={2:0}, x=1, x++=39, x++=38] [L1019] 0 *d = 8 VAL [*d = 8=40, A={1:0}, arg={0:0}, B={2:0}, d={2:0}, id={6:0}, m={2:12}, s={2:0}, x=1, x++=39, x++=38] [L996] 1 B.datum = 5 VAL [A={1:0}, arg={0:0}, arg={0:0}, B={2:0}, B.datum = 5=37] [L1019] 0 *d = 8 VAL [*d = 8=40, A={1:0}, arg={0:0}, arg={0:0}, B={2:0}, B.datum = 5=37, d={2:0}, id={6:0}, m={2:12}, s={2:0}, x=1, x++=39, x++=38] Now there is a data race (on the heap) between C: B.datum = 5 [996] and C: *d = 8 [1019] - UnprovableResult [Line: 1017]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 996]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 291 IncrementalHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 13 mSDtfsCounter, 291 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 178 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 11:45:46,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2df65c87-9919-46fd-9d36-82bb65e14be3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE