./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/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_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/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_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/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 cdf629ba70521b99830442583c87012a34d164ca28f01f7e59d76ae2f1e525ff --- 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 11:24:50,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:24:50,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:24:50,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:24:50,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:24:50,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:24:50,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:24:50,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:24:50,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:24:50,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:24:50,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:24:50,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:24:50,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:24:50,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:24:50,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:24:50,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:24:50,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:24:50,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:24:50,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:24:50,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:24:50,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:24:50,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:24:50,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:24:50,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:24:50,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:24:50,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:24:50,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:24:50,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:24:50,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:24:50,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:24:50,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:24:50,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:24:50,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:24:50,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:24:50,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:24:50,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:24:50,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:24:50,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:24:50,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:24:50,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:24:50,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:24:50,201 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 11:24:50,214 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:24:50,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:24:50,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:24:50,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:24:50,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:24:50,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:24:50,216 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:24:50,216 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:24:50,216 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:24:50,216 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:24:50,216 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:24:50,216 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:24:50,216 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:24:50,216 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:24:50,217 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:24:50,217 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:24:50,217 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:24:50,217 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:24:50,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:24:50,218 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:24:50,218 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:24:50,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:24:50,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:24:50,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:24:50,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:24:50,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:24:50,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:24:50,219 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 11:24:50,219 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:24:50,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:24:50,219 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:24:50,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:24:50,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:24:50,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:24:50,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:24:50,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:24:50,220 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:24:50,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:24:50,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:24:50,221 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:24:50,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:24:50,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:24:50,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:24:50,221 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_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdf629ba70521b99830442583c87012a34d164ca28f01f7e59d76ae2f1e525ff [2022-12-14 11:24:50,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:24:50,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:24:50,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:24:50,422 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:24:50,422 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:24:50,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i [2022-12-14 11:24:52,926 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:24:53,141 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:24:53,142 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i [2022-12-14 11:24:53,153 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/bin/utaipan-gh47qXpMRh/data/d4790784a/d64dbef2d65a4861b969b32aafe04523/FLAG122511f40 [2022-12-14 11:24:53,499 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/bin/utaipan-gh47qXpMRh/data/d4790784a/d64dbef2d65a4861b969b32aafe04523 [2022-12-14 11:24:53,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:24:53,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:24:53,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:24:53,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:24:53,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:24:53,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:24:53" (1/1) ... [2022-12-14 11:24:53,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2736fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:53, skipping insertion in model container [2022-12-14 11:24:53,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:24:53" (1/1) ... [2022-12-14 11:24:53,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:24:53,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:24:53,720 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_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i[30035,30048] [2022-12-14 11:24:53,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:24:53,740 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:24:53,763 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_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i[30035,30048] [2022-12-14 11:24:53,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:24:53,786 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:24:53,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:53 WrapperNode [2022-12-14 11:24:53,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:24:53,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:24:53,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:24:53,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:24:53,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:53" (1/1) ... [2022-12-14 11:24:53,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:53" (1/1) ... [2022-12-14 11:24:53,812 INFO L138 Inliner]: procedures = 170, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2022-12-14 11:24:53,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:24:53,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:24:53,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:24:53,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:24:53,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:53" (1/1) ... [2022-12-14 11:24:53,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:53" (1/1) ... [2022-12-14 11:24:53,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:53" (1/1) ... [2022-12-14 11:24:53,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:53" (1/1) ... [2022-12-14 11:24:53,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:53" (1/1) ... [2022-12-14 11:24:53,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:53" (1/1) ... [2022-12-14 11:24:53,828 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:53" (1/1) ... [2022-12-14 11:24:53,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:53" (1/1) ... [2022-12-14 11:24:53,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:24:53,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:24:53,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:24:53,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:24:53,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:53" (1/1) ... [2022-12-14 11:24:53,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:24:53,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:24:53,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:24:53,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:24:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-14 11:24:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-14 11:24:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-14 11:24:53,886 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-14 11:24:53,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:24:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:24:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:24:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:24:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:24:53,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:24:53,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:24:53,888 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 11:24:53,978 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:24:53,980 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:24:54,123 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:24:54,128 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:24:54,129 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:24:54,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:24:54 BoogieIcfgContainer [2022-12-14 11:24:54,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:24:54,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:24:54,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:24:54,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:24:54,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:24:53" (1/3) ... [2022-12-14 11:24:54,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e8e952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:24:54, skipping insertion in model container [2022-12-14 11:24:54,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:24:53" (2/3) ... [2022-12-14 11:24:54,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e8e952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:24:54, skipping insertion in model container [2022-12-14 11:24:54,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:24:54" (3/3) ... [2022-12-14 11:24:54,142 INFO L112 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-1.i [2022-12-14 11:24:54,149 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 11:24:54,156 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:24:54,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-12-14 11:24:54,156 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 11:24:54,200 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 11:24:54,223 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 11:24:54,234 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 114 transitions, 238 flow [2022-12-14 11:24:54,236 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 114 transitions, 238 flow [2022-12-14 11:24:54,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 114 transitions, 238 flow [2022-12-14 11:24:54,278 INFO L130 PetriNetUnfolder]: 5/130 cut-off events. [2022-12-14 11:24:54,278 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 11:24:54,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 130 events. 5/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 172 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 95. Up to 4 conditions per place. [2022-12-14 11:24:54,284 INFO L119 LiptonReduction]: Number of co-enabled transitions 1958 [2022-12-14 11:24:57,473 INFO L134 LiptonReduction]: Checked pairs total: 4359 [2022-12-14 11:24:57,473 INFO L136 LiptonReduction]: Total number of compositions: 133 [2022-12-14 11:24:57,479 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 27 transitions, 64 flow [2022-12-14 11:24:57,502 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 292 states, 255 states have (on average 3.0941176470588236) internal successors, (789), 291 states have internal predecessors, (789), 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 11:24:57,515 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:24:57,519 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;@47d78d6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:24:57,519 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-12-14 11:24:57,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 292 states, 255 states have (on average 3.0941176470588236) internal successors, (789), 291 states have internal predecessors, (789), 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 11:24:57,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 11:24:57,524 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:57,525 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 11:24:57,525 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-12-14 11:24:57,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:57,528 INFO L85 PathProgramCache]: Analyzing trace with hash 433, now seen corresponding path program 1 times [2022-12-14 11:24:57,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:57,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755243929] [2022-12-14 11:24:57,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:57,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:57,609 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 11:24:57,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:57,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755243929] [2022-12-14 11:24:57,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755243929] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:57,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:57,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 11:24:57,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012698498] [2022-12-14 11:24:57,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:57,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:24:57,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:57,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:24:57,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:24:57,633 INFO L87 Difference]: Start difference. First operand has 292 states, 255 states have (on average 3.0941176470588236) internal successors, (789), 291 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:57,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:57,665 INFO L93 Difference]: Finished difference Result 175 states and 407 transitions. [2022-12-14 11:24:57,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:24:57,666 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-12-14 11:24:57,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:57,673 INFO L225 Difference]: With dead ends: 175 [2022-12-14 11:24:57,673 INFO L226 Difference]: Without dead ends: 173 [2022-12-14 11:24:57,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:24:57,676 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:57,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:24:57,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-12-14 11:24:57,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-12-14 11:24:57,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 165 states have (on average 2.4363636363636365) internal successors, (402), 172 states have internal predecessors, (402), 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 11:24:57,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 402 transitions. [2022-12-14 11:24:57,710 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 402 transitions. Word has length 1 [2022-12-14 11:24:57,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:57,711 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 402 transitions. [2022-12-14 11:24:57,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:24:57,711 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 402 transitions. [2022-12-14 11:24:57,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 11:24:57,711 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:57,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 11:24:57,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:24:57,711 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-12-14 11:24:57,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:57,712 INFO L85 PathProgramCache]: Analyzing trace with hash 13534181, now seen corresponding path program 1 times [2022-12-14 11:24:57,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:57,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937637698] [2022-12-14 11:24:57,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:57,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:57,787 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 11:24:57,788 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:57,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937637698] [2022-12-14 11:24:57,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937637698] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:57,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:57,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:24:57,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752943664] [2022-12-14 11:24:57,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:57,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:24:57,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:57,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:24:57,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:24:57,791 INFO L87 Difference]: Start difference. First operand 173 states and 402 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 11:24:57,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:57,825 INFO L93 Difference]: Finished difference Result 208 states and 469 transitions. [2022-12-14 11:24:57,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:24:57,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-12-14 11:24:57,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:57,828 INFO L225 Difference]: With dead ends: 208 [2022-12-14 11:24:57,828 INFO L226 Difference]: Without dead ends: 204 [2022-12-14 11:24:57,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:24:57,829 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 11 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:57,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 8 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:24:57,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-12-14 11:24:57,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 170. [2022-12-14 11:24:57,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 163 states have (on average 2.4171779141104293) internal successors, (394), 169 states have internal predecessors, (394), 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 11:24:57,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 394 transitions. [2022-12-14 11:24:57,839 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 394 transitions. Word has length 4 [2022-12-14 11:24:57,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:57,839 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 394 transitions. [2022-12-14 11:24:57,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 11:24:57,840 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 394 transitions. [2022-12-14 11:24:57,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 11:24:57,840 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:57,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:57,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:24:57,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-12-14 11:24:57,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:57,841 INFO L85 PathProgramCache]: Analyzing trace with hash 627283131, now seen corresponding path program 1 times [2022-12-14 11:24:57,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:57,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220388864] [2022-12-14 11:24:57,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:57,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:24:57,897 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 11:24:57,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:24:57,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220388864] [2022-12-14 11:24:57,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220388864] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:24:57,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:24:57,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:24:57,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327247930] [2022-12-14 11:24:57,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:24:57,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:24:57,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:24:57,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:24:57,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:24:57,900 INFO L87 Difference]: Start difference. First operand 170 states and 394 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 11:24:57,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:24:57,932 INFO L93 Difference]: Finished difference Result 164 states and 369 transitions. [2022-12-14 11:24:57,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:24:57,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 11:24:57,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:24:57,934 INFO L225 Difference]: With dead ends: 164 [2022-12-14 11:24:57,934 INFO L226 Difference]: Without dead ends: 158 [2022-12-14 11:24:57,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:24:57,935 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:24:57,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:24:57,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-12-14 11:24:57,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2022-12-14 11:24:57,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 153 states have (on average 2.30718954248366) internal successors, (353), 157 states have internal predecessors, (353), 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 11:24:57,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 353 transitions. [2022-12-14 11:24:57,942 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 353 transitions. Word has length 9 [2022-12-14 11:24:57,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:24:57,942 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 353 transitions. [2022-12-14 11:24:57,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 11:24:57,942 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 353 transitions. [2022-12-14 11:24:57,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 11:24:57,942 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:24:57,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:24:57,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:24:57,943 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-12-14 11:24:57,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:24:57,943 INFO L85 PathProgramCache]: Analyzing trace with hash 50449957, now seen corresponding path program 1 times [2022-12-14 11:24:57,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:24:57,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780524566] [2022-12-14 11:24:57,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:24:57,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:24:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:24:57,969 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:24:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:24:57,997 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 11:24:57,997 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:24:57,998 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2022-12-14 11:24:57,999 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2022-12-14 11:24:58,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2022-12-14 11:24:58,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2022-12-14 11:24:58,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2022-12-14 11:24:58,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2022-12-14 11:24:58,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2022-12-14 11:24:58,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2022-12-14 11:24:58,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2022-12-14 11:24:58,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2022-12-14 11:24:58,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 15 remaining) [2022-12-14 11:24:58,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 15 remaining) [2022-12-14 11:24:58,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2022-12-14 11:24:58,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2022-12-14 11:24:58,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2022-12-14 11:24:58,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 11:24:58,003 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-14 11:24:58,007 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 11:24:58,007 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:24:58,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:24:58 BasicIcfg [2022-12-14 11:24:58,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:24:58,027 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:24:58,027 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:24:58,027 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:24:58,028 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:24:54" (3/4) ... [2022-12-14 11:24:58,030 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 11:24:58,030 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:24:58,031 INFO L158 Benchmark]: Toolchain (without parser) took 4527.71ms. Allocated memory was 125.8MB in the beginning and 153.1MB in the end (delta: 27.3MB). Free memory was 88.5MB in the beginning and 67.8MB in the end (delta: 20.6MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-12-14 11:24:58,031 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 125.8MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:24:58,032 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.99ms. Allocated memory is still 125.8MB. Free memory was 88.5MB in the beginning and 69.1MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 11:24:58,032 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.95ms. Allocated memory is still 125.8MB. Free memory was 69.1MB in the beginning and 67.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:24:58,033 INFO L158 Benchmark]: Boogie Preprocessor took 16.71ms. Allocated memory is still 125.8MB. Free memory was 67.0MB in the beginning and 65.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:24:58,033 INFO L158 Benchmark]: RCFGBuilder took 300.04ms. Allocated memory was 125.8MB in the beginning and 153.1MB in the end (delta: 27.3MB). Free memory was 65.4MB in the beginning and 121.7MB in the end (delta: -56.3MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-12-14 11:24:58,033 INFO L158 Benchmark]: TraceAbstraction took 3888.74ms. Allocated memory is still 153.1MB. Free memory was 123.2MB in the beginning and 68.9MB in the end (delta: 54.3MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2022-12-14 11:24:58,034 INFO L158 Benchmark]: Witness Printer took 3.02ms. Allocated memory is still 153.1MB. Free memory was 68.9MB in the beginning and 67.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:24:58,036 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 125.8MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 281.99ms. Allocated memory is still 125.8MB. Free memory was 88.5MB in the beginning and 69.1MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.95ms. Allocated memory is still 125.8MB. Free memory was 69.1MB in the beginning and 67.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.71ms. Allocated memory is still 125.8MB. Free memory was 67.0MB in the beginning and 65.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 300.04ms. Allocated memory was 125.8MB in the beginning and 153.1MB in the end (delta: 27.3MB). Free memory was 65.4MB in the beginning and 121.7MB in the end (delta: -56.3MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3888.74ms. Allocated memory is still 153.1MB. Free memory was 123.2MB in the beginning and 68.9MB in the end (delta: 54.3MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. * Witness Printer took 3.02ms. Allocated memory is still 153.1MB. Free memory was 68.9MB in the beginning and 67.8MB in the end (delta: 1.0MB). 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: 3.2s, 116 PlacesBefore, 31 PlacesAfterwards, 114 TransitionsBefore, 27 TransitionsAfterwards, 1958 CoEnabledTransitionPairs, 8 FixpointIterations, 69 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 133 TotalNumberOfCompositions, 4359 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2324, independent: 2175, independent conditional: 0, independent unconditional: 2175, dependent: 149, dependent conditional: 0, dependent unconditional: 149, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1428, independent: 1394, independent conditional: 0, independent unconditional: 1394, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1428, independent: 1354, independent conditional: 0, independent unconditional: 1354, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 74, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 65, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2324, independent: 781, independent conditional: 0, independent unconditional: 781, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 1428, unknown conditional: 0, unknown unconditional: 1428] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 49, Positive conditional cache size: 0, Positive unconditional cache size: 49, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, 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: 693]: Data race detected Data race detected The following path leads to a data race: [L690] 0 volatile int x; [L691] 0 volatile int n; [L701] 0 pthread_t t1, t2; [L702] 0 int i; [L703] 0 x = 0 [L704] 0 n = __VERIFIER_nondet_uint() [L705] EXPR 0 n >= 20 [L705] EXPR 0 n >= 20 && n < 40 [L705] EXPR 0 n < 40 [L705] EXPR 0 n >= 20 && n < 40 [L705] CALL 0 assume_abort_if_not(n >= 20 && n < 40) [L687] COND FALSE 0 !(!cond) [L705] RET 0 assume_abort_if_not(n >= 20 && n < 40) [L706] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, n=20, pthread_create(&t1, 0, thr1, 0)=6, t1={3:0}, t2={5:0}, x=0] [L707] 0 i = 0 VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, i=0, n=20, t1={3:0}, t2={5:0}, x=0] [L707] 0 i < n VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, i=0, n=20, t1={3:0}, t2={5:0}, x=0] [L693] 1 x < n VAL [arg={0:0}, arg={0:0}, n=20, x=0] [L707] 0 i < n [L707] COND TRUE 0 i < n [L708] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(argc)=49, arg={0:0}, argc=49, argv={50:51}, argv={50:51}, i=0, n=20, pthread_create(&t2, 0, thr2, 0)=7, t1={3:0}, t2={5:0}, x=0] [L696] 2 int t; [L697] 2 t = x [L698] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=20, t=0, x=1, x = t + 1=52] [L693] 1 x < n VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, n=20, t=0, x=1, x = t + 1=52] Now there is a data race on ~x~0 between C: x = t + 1 [698] and C: x < n [693] - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: 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: 706]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 143 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 15 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=292occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 3 MinimizatonAttempts, 34 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 11:24:58,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70859f2-15cf-4f0d-a952-2dafbafb7d8d/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