./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/fkp2013-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_8d63e11b-af51-465c-b8b2-022204641cdf/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d63e11b-af51-465c-b8b2-022204641cdf/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d63e11b-af51-465c-b8b2-022204641cdf/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d63e11b-af51-465c-b8b2-022204641cdf/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2013-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d63e11b-af51-465c-b8b2-022204641cdf/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d63e11b-af51-465c-b8b2-022204641cdf/bin/utaipan-g80aRyZoba --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 ac100ce7c66b3266dc643fb77471441d693f59fe8c56e13ccaa684a73cdda8b0 --- 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-b5237d8 [2022-11-22 00:27:28,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:27:28,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:27:28,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:27:28,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:27:28,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:27:28,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:27:28,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:27:28,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:27:28,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:27:28,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:27:28,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:27:28,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:27:28,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:27:28,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:27:28,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:27:28,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:27:28,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:27:28,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:27:28,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:27:28,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:27:28,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:27:28,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:27:28,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:27:28,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:27:28,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:27:28,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:27:28,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:27:28,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:27:28,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:27:28,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:27:28,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:27:28,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:27:28,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:27:28,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:27:28,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:27:28,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:27:28,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:27:28,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:27:28,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:27:28,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:27:28,365 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d63e11b-af51-465c-b8b2-022204641cdf/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-22 00:27:28,401 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:27:28,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:27:28,402 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:27:28,402 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:27:28,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:27:28,403 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:27:28,403 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:27:28,403 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:27:28,403 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:27:28,404 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:27:28,404 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:27:28,404 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:27:28,404 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:27:28,404 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:27:28,405 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:27:28,405 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:27:28,405 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:27:28,405 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:27:28,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:27:28,406 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:27:28,406 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:27:28,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:27:28,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:27:28,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:27:28,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:27:28,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:27:28,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:27:28,408 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-22 00:27:28,408 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:27:28,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:27:28,408 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:27:28,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:27:28,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:27:28,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:27:28,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:27:28,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:27:28,410 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:27:28,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:27:28,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:27:28,410 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:27:28,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:27:28,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:27:28,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:27:28,411 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_8d63e11b-af51-465c-b8b2-022204641cdf/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d63e11b-af51-465c-b8b2-022204641cdf/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac100ce7c66b3266dc643fb77471441d693f59fe8c56e13ccaa684a73cdda8b0 [2022-11-22 00:27:28,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:27:28,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:27:28,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:27:28,698 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:27:28,699 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:27:28,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d63e11b-af51-465c-b8b2-022204641cdf/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-lit/fkp2013-1.i [2022-11-22 00:27:31,738 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:27:32,009 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:27:32,010 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d63e11b-af51-465c-b8b2-022204641cdf/sv-benchmarks/c/pthread-lit/fkp2013-1.i [2022-11-22 00:27:32,021 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d63e11b-af51-465c-b8b2-022204641cdf/bin/utaipan-g80aRyZoba/data/cf40f8316/90f96c86e68b4eb69113b314b9dbe4bd/FLAGfb0ebcf6f [2022-11-22 00:27:32,036 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d63e11b-af51-465c-b8b2-022204641cdf/bin/utaipan-g80aRyZoba/data/cf40f8316/90f96c86e68b4eb69113b314b9dbe4bd [2022-11-22 00:27:32,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:27:32,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:27:32,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:27:32,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:27:32,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:27:32,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:27:32" (1/1) ... [2022-11-22 00:27:32,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@285041ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:32, skipping insertion in model container [2022-11-22 00:27:32,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:27:32" (1/1) ... [2022-11-22 00:27:32,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:27:32,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:27:32,464 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_8d63e11b-af51-465c-b8b2-022204641cdf/sv-benchmarks/c/pthread-lit/fkp2013-1.i[30003,30016] [2022-11-22 00:27:32,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:27:32,503 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:27:32,560 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_8d63e11b-af51-465c-b8b2-022204641cdf/sv-benchmarks/c/pthread-lit/fkp2013-1.i[30003,30016] [2022-11-22 00:27:32,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:27:32,607 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:27:32,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:32 WrapperNode [2022-11-22 00:27:32,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:27:32,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:27:32,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:27:32,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:27:32,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:32" (1/1) ... [2022-11-22 00:27:32,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:32" (1/1) ... [2022-11-22 00:27:32,682 INFO L138 Inliner]: procedures = 172, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2022-11-22 00:27:32,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:27:32,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:27:32,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:27:32,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:27:32,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:32" (1/1) ... [2022-11-22 00:27:32,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:32" (1/1) ... [2022-11-22 00:27:32,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:32" (1/1) ... [2022-11-22 00:27:32,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:32" (1/1) ... [2022-11-22 00:27:32,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:32" (1/1) ... [2022-11-22 00:27:32,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:32" (1/1) ... [2022-11-22 00:27:32,727 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:32" (1/1) ... [2022-11-22 00:27:32,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:32" (1/1) ... [2022-11-22 00:27:32,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:27:32,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:27:32,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:27:32,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:27:32,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:32" (1/1) ... [2022-11-22 00:27:32,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:27:32,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d63e11b-af51-465c-b8b2-022204641cdf/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:27:32,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d63e11b-af51-465c-b8b2-022204641cdf/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:27:32,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d63e11b-af51-465c-b8b2-022204641cdf/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:27:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-22 00:27:32,829 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-22 00:27:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-22 00:27:32,830 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-22 00:27:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:27:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:27:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:27:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:27:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:27:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:27:32,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:27:32,833 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 00:27:33,028 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:27:33,030 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:27:33,300 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:27:33,307 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:27:33,308 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 00:27:33,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:27:33 BoogieIcfgContainer [2022-11-22 00:27:33,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:27:33,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:27:33,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:27:33,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:27:33,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:27:32" (1/3) ... [2022-11-22 00:27:33,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b70129c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:27:33, skipping insertion in model container [2022-11-22 00:27:33,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:27:32" (2/3) ... [2022-11-22 00:27:33,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b70129c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:27:33, skipping insertion in model container [2022-11-22 00:27:33,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:27:33" (3/3) ... [2022-11-22 00:27:33,320 INFO L112 eAbstractionObserver]: Analyzing ICFG fkp2013-1.i [2022-11-22 00:27:33,329 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 00:27:33,340 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:27:33,340 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-22 00:27:33,340 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 00:27:33,396 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 00:27:33,432 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 00:27:33,446 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 83 transitions, 176 flow [2022-11-22 00:27:33,449 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 83 transitions, 176 flow [2022-11-22 00:27:33,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 83 transitions, 176 flow [2022-11-22 00:27:33,508 INFO L130 PetriNetUnfolder]: 3/96 cut-off events. [2022-11-22 00:27:33,508 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-22 00:27:33,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 96 events. 3/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 141 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 70. Up to 4 conditions per place. [2022-11-22 00:27:33,517 INFO L119 LiptonReduction]: Number of co-enabled transitions 1700 [2022-11-22 00:27:36,359 INFO L134 LiptonReduction]: Checked pairs total: 2424 [2022-11-22 00:27:36,360 INFO L136 LiptonReduction]: Total number of compositions: 75 [2022-11-22 00:27:36,368 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 18 transitions, 46 flow [2022-11-22 00:27:36,397 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 137 states, 124 states have (on average 2.5161290322580645) internal successors, (312), 136 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:27:36,425 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:27:36,437 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;@60bc9b30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:27:36,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-22 00:27:36,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 124 states have (on average 2.5161290322580645) internal successors, (312), 136 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:27:36,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 00:27:36,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:27:36,451 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 00:27:36,452 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-22 00:27:36,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:27:36,457 INFO L85 PathProgramCache]: Analyzing trace with hash 316, now seen corresponding path program 1 times [2022-11-22 00:27:36,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:27:36,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462322966] [2022-11-22 00:27:36,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:27:36,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:27:36,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:27:36,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:27:36,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:27:36,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462322966] [2022-11-22 00:27:36,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462322966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:27:36,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:27:36,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 00:27:36,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245556806] [2022-11-22 00:27:36,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:27:36,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 00:27:36,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:27:36,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 00:27:36,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:27:36,633 INFO L87 Difference]: Start difference. First operand has 137 states, 124 states have (on average 2.5161290322580645) internal successors, (312), 136 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:27:36,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:27:36,694 INFO L93 Difference]: Finished difference Result 116 states and 260 transitions. [2022-11-22 00:27:36,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 00:27:36,697 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-22 00:27:36,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:27:36,711 INFO L225 Difference]: With dead ends: 116 [2022-11-22 00:27:36,711 INFO L226 Difference]: Without dead ends: 116 [2022-11-22 00:27:36,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:27:36,716 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:27:36,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:27:36,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-22 00:27:36,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-11-22 00:27:36,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 108 states have (on average 2.4074074074074074) internal successors, (260), 115 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:27:36,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 260 transitions. [2022-11-22 00:27:36,773 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 260 transitions. Word has length 1 [2022-11-22 00:27:36,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:27:36,774 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 260 transitions. [2022-11-22 00:27:36,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:27:36,779 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 260 transitions. [2022-11-22 00:27:36,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 00:27:36,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:27:36,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 00:27:36,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:27:36,780 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-22 00:27:36,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:27:36,782 INFO L85 PathProgramCache]: Analyzing trace with hash 9651859, now seen corresponding path program 1 times [2022-11-22 00:27:36,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:27:36,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360329568] [2022-11-22 00:27:36,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:27:36,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:27:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:27:36,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:27:36,919 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:27:36,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360329568] [2022-11-22 00:27:36,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360329568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:27:36,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:27:36,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:27:36,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006435451] [2022-11-22 00:27:36,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:27:36,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:27:36,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:27:36,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:27:36,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:27:36,923 INFO L87 Difference]: Start difference. First operand 116 states and 260 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) [2022-11-22 00:27:36,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:27:36,961 INFO L93 Difference]: Finished difference Result 131 states and 280 transitions. [2022-11-22 00:27:36,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:27:36,961 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 [2022-11-22 00:27:36,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:27:36,963 INFO L225 Difference]: With dead ends: 131 [2022-11-22 00:27:36,964 INFO L226 Difference]: Without dead ends: 127 [2022-11-22 00:27:36,964 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 [2022-11-22 00:27:36,965 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:27:36,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:27:36,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-22 00:27:36,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 113. [2022-11-22 00:27:36,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 106 states have (on average 2.3773584905660377) internal successors, (252), 112 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:27:36,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 252 transitions. [2022-11-22 00:27:36,975 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 252 transitions. Word has length 4 [2022-11-22 00:27:36,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:27:36,976 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 252 transitions. [2022-11-22 00:27:36,976 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) [2022-11-22 00:27:36,976 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 252 transitions. [2022-11-22 00:27:36,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 00:27:36,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:27:36,977 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-22 00:27:36,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:27:36,978 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-22 00:27:36,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:27:36,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1693381854, now seen corresponding path program 1 times [2022-11-22 00:27:36,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:27:36,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158845523] [2022-11-22 00:27:36,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:27:36,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:27:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:27:37,007 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 00:27:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:27:37,044 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 00:27:37,044 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 00:27:37,045 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2022-11-22 00:27:37,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2022-11-22 00:27:37,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2022-11-22 00:27:37,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2022-11-22 00:27:37,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2022-11-22 00:27:37,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 9 remaining) [2022-11-22 00:27:37,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2022-11-22 00:27:37,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2022-11-22 00:27:37,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2022-11-22 00:27:37,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:27:37,052 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-22 00:27:37,054 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-22 00:27:37,055 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-22 00:27:37,074 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 00:27:37,077 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 00:27:37,078 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 114 transitions, 252 flow [2022-11-22 00:27:37,078 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 114 transitions, 252 flow [2022-11-22 00:27:37,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 114 transitions, 252 flow [2022-11-22 00:27:37,130 INFO L130 PetriNetUnfolder]: 4/130 cut-off events. [2022-11-22 00:27:37,131 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-22 00:27:37,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 130 events. 4/130 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 224 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 139. Up to 6 conditions per place. [2022-11-22 00:27:37,135 INFO L119 LiptonReduction]: Number of co-enabled transitions 3130 [2022-11-22 00:27:39,893 INFO L134 LiptonReduction]: Checked pairs total: 8418 [2022-11-22 00:27:39,893 INFO L136 LiptonReduction]: Total number of compositions: 95 [2022-11-22 00:27:39,894 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 36 transitions, 96 flow [2022-11-22 00:27:40,017 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2677 states, 2635 states have (on average 3.386717267552182) internal successors, (8924), 2676 states have internal predecessors, (8924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:27:40,018 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:27:40,019 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;@60bc9b30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:27:40,019 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-11-22 00:27:40,028 INFO L276 IsEmpty]: Start isEmpty. Operand has 2677 states, 2635 states have (on average 3.386717267552182) internal successors, (8924), 2676 states have internal predecessors, (8924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:27:40,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 00:27:40,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:27:40,029 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 00:27:40,029 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-11-22 00:27:40,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:27:40,030 INFO L85 PathProgramCache]: Analyzing trace with hash 555, now seen corresponding path program 1 times [2022-11-22 00:27:40,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:27:40,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204486191] [2022-11-22 00:27:40,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:27:40,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:27:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:27:40,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:27:40,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:27:40,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204486191] [2022-11-22 00:27:40,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204486191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:27:40,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:27:40,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 00:27:40,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212747529] [2022-11-22 00:27:40,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:27:40,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 00:27:40,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:27:40,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 00:27:40,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:27:40,053 INFO L87 Difference]: Start difference. First operand has 2677 states, 2635 states have (on average 3.386717267552182) internal successors, (8924), 2676 states have internal predecessors, (8924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:27:40,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:27:40,135 INFO L93 Difference]: Finished difference Result 2676 states and 8923 transitions. [2022-11-22 00:27:40,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 00:27:40,137 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-22 00:27:40,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:27:40,158 INFO L225 Difference]: With dead ends: 2676 [2022-11-22 00:27:40,158 INFO L226 Difference]: Without dead ends: 2676 [2022-11-22 00:27:40,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:27:40,160 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:27:40,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:27:40,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-11-22 00:27:40,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2676. [2022-11-22 00:27:40,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2676 states, 2635 states have (on average 3.386337760910816) internal successors, (8923), 2675 states have internal predecessors, (8923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:27:40,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2676 states to 2676 states and 8923 transitions. [2022-11-22 00:27:40,290 INFO L78 Accepts]: Start accepts. Automaton has 2676 states and 8923 transitions. Word has length 1 [2022-11-22 00:27:40,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:27:40,290 INFO L495 AbstractCegarLoop]: Abstraction has 2676 states and 8923 transitions. [2022-11-22 00:27:40,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:27:40,291 INFO L276 IsEmpty]: Start isEmpty. Operand 2676 states and 8923 transitions. [2022-11-22 00:27:40,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 00:27:40,291 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:27:40,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 00:27:40,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:27:40,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-11-22 00:27:40,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:27:40,293 INFO L85 PathProgramCache]: Analyzing trace with hash 16929389, now seen corresponding path program 1 times [2022-11-22 00:27:40,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:27:40,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154728192] [2022-11-22 00:27:40,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:27:40,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:27:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:27:40,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:27:40,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:27:40,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154728192] [2022-11-22 00:27:40,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154728192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:27:40,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:27:40,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:27:40,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251806128] [2022-11-22 00:27:40,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:27:40,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:27:40,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:27:40,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:27:40,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:27:40,354 INFO L87 Difference]: Start difference. First operand 2676 states and 8923 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) [2022-11-22 00:27:40,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:27:40,454 INFO L93 Difference]: Finished difference Result 3280 states and 10352 transitions. [2022-11-22 00:27:40,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:27:40,455 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 [2022-11-22 00:27:40,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:27:40,478 INFO L225 Difference]: With dead ends: 3280 [2022-11-22 00:27:40,478 INFO L226 Difference]: Without dead ends: 3274 [2022-11-22 00:27:40,479 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 [2022-11-22 00:27:40,480 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:27:40,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 20 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:27:40,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2022-11-22 00:27:40,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 2564. [2022-11-22 00:27:40,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2530 states have (on average 3.2964426877470356) internal successors, (8340), 2563 states have internal predecessors, (8340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:27:40,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 8340 transitions. [2022-11-22 00:27:40,655 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 8340 transitions. Word has length 4 [2022-11-22 00:27:40,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:27:40,655 INFO L495 AbstractCegarLoop]: Abstraction has 2564 states and 8340 transitions. [2022-11-22 00:27:40,656 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) [2022-11-22 00:27:40,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 8340 transitions. [2022-11-22 00:27:40,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 00:27:40,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:27:40,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:27:40,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:27:40,658 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-11-22 00:27:40,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:27:40,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1225962012, now seen corresponding path program 1 times [2022-11-22 00:27:40,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:27:40,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001552112] [2022-11-22 00:27:40,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:27:40,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:27:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:27:40,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:27:40,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:27:40,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001552112] [2022-11-22 00:27:40,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001552112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:27:40,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:27:40,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:27:40,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772267180] [2022-11-22 00:27:40,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:27:40,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:27:40,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:27:40,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:27:40,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:27:40,711 INFO L87 Difference]: Start difference. First operand 2564 states and 8340 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:27:40,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:27:40,801 INFO L93 Difference]: Finished difference Result 2691 states and 8683 transitions. [2022-11-22 00:27:40,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:27:40,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-11-22 00:27:40,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:27:40,823 INFO L225 Difference]: With dead ends: 2691 [2022-11-22 00:27:40,823 INFO L226 Difference]: Without dead ends: 2667 [2022-11-22 00:27:40,823 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 [2022-11-22 00:27:40,824 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 15 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:27:40,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 21 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:27:40,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2022-11-22 00:27:40,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2667. [2022-11-22 00:27:40,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2636 states have (on average 3.261001517450683) internal successors, (8596), 2666 states have internal predecessors, (8596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:27:40,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 8596 transitions. [2022-11-22 00:27:40,947 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 8596 transitions. Word has length 12 [2022-11-22 00:27:40,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:27:40,948 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 8596 transitions. [2022-11-22 00:27:40,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:27:40,949 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 8596 transitions. [2022-11-22 00:27:40,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 00:27:40,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:27:40,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:27:40,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:27:40,951 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-11-22 00:27:40,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:27:40,952 INFO L85 PathProgramCache]: Analyzing trace with hash 659218345, now seen corresponding path program 1 times [2022-11-22 00:27:40,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:27:40,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253763532] [2022-11-22 00:27:40,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:27:40,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:27:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:27:40,991 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 00:27:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:27:41,007 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 00:27:41,007 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 00:27:41,007 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2022-11-22 00:27:41,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2022-11-22 00:27:41,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2022-11-22 00:27:41,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2022-11-22 00:27:41,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2022-11-22 00:27:41,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 12 remaining) [2022-11-22 00:27:41,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2022-11-22 00:27:41,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2022-11-22 00:27:41,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2022-11-22 00:27:41,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2022-11-22 00:27:41,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2022-11-22 00:27:41,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2022-11-22 00:27:41,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 00:27:41,011 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-22 00:27:41,015 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-11-22 00:27:41,015 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:27:41,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:27:41 BasicIcfg [2022-11-22 00:27:41,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:27:41,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:27:41,081 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:27:41,081 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:27:41,081 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:27:33" (3/4) ... [2022-11-22 00:27:41,084 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 00:27:41,084 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:27:41,085 INFO L158 Benchmark]: Toolchain (without parser) took 9044.78ms. Allocated memory was 138.4MB in the beginning and 203.4MB in the end (delta: 65.0MB). Free memory was 93.7MB in the beginning and 150.5MB in the end (delta: -56.8MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2022-11-22 00:27:41,085 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 138.4MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:27:41,085 INFO L158 Benchmark]: CACSL2BoogieTranslator took 567.55ms. Allocated memory is still 138.4MB. Free memory was 93.2MB in the beginning and 74.0MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 00:27:41,086 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.06ms. Allocated memory is still 138.4MB. Free memory was 74.0MB in the beginning and 71.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:27:41,086 INFO L158 Benchmark]: Boogie Preprocessor took 56.64ms. Allocated memory is still 138.4MB. Free memory was 71.8MB in the beginning and 70.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:27:41,086 INFO L158 Benchmark]: RCFGBuilder took 569.34ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 70.6MB in the beginning and 135.3MB in the end (delta: -64.7MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2022-11-22 00:27:41,087 INFO L158 Benchmark]: TraceAbstraction took 7767.03ms. Allocated memory was 167.8MB in the beginning and 203.4MB in the end (delta: 35.7MB). Free memory was 134.4MB in the beginning and 150.5MB in the end (delta: -16.1MB). Peak memory consumption was 109.4MB. Max. memory is 16.1GB. [2022-11-22 00:27:41,087 INFO L158 Benchmark]: Witness Printer took 3.81ms. Allocated memory is still 203.4MB. Free memory is still 150.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:27:41,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 138.4MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 567.55ms. Allocated memory is still 138.4MB. Free memory was 93.2MB in the beginning and 74.0MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.06ms. Allocated memory is still 138.4MB. Free memory was 74.0MB in the beginning and 71.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.64ms. Allocated memory is still 138.4MB. Free memory was 71.8MB in the beginning and 70.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 569.34ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 70.6MB in the beginning and 135.3MB in the end (delta: -64.7MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7767.03ms. Allocated memory was 167.8MB in the beginning and 203.4MB in the end (delta: 35.7MB). Free memory was 134.4MB in the beginning and 150.5MB in the end (delta: -16.1MB). Peak memory consumption was 109.4MB. Max. memory is 16.1GB. * Witness Printer took 3.81ms. Allocated memory is still 203.4MB. Free memory is still 150.5MB. 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: 2.9s, 87 PlacesBefore, 24 PlacesAfterwards, 83 TransitionsBefore, 18 TransitionsAfterwards, 1700 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 2424 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1812, independent: 1738, independent conditional: 0, independent unconditional: 1738, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1168, independent: 1147, independent conditional: 0, independent unconditional: 1147, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1168, independent: 1134, independent conditional: 0, independent unconditional: 1134, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 85, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1812, independent: 591, independent conditional: 0, independent unconditional: 591, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 1168, unknown conditional: 0, unknown unconditional: 1168] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, 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 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 121 PlacesBefore, 46 PlacesAfterwards, 114 TransitionsBefore, 36 TransitionsAfterwards, 3130 CoEnabledTransitionPairs, 6 FixpointIterations, 47 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 95 TotalNumberOfCompositions, 8418 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3833, independent: 3600, independent conditional: 0, independent unconditional: 3600, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1925, independent: 1873, independent conditional: 0, independent unconditional: 1873, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1925, independent: 1861, independent conditional: 0, independent unconditional: 1861, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 64, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 126, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3833, independent: 1727, independent conditional: 0, independent unconditional: 1727, dependent: 181, dependent conditional: 0, dependent unconditional: 181, unknown: 1925, unknown conditional: 0, unknown unconditional: 1925] , Statistics on independence cache: Total cache size (in pairs): 213, Positive cache size: 188, Positive conditional cache size: 0, Positive unconditional cache size: 188, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, 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: 699]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int x; [L709] 0 pthread_t t1, t2; [L710] 0 int i; [L711] 0 x = 0 [L712] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=52, argc=52, argv={50:51}, argv={50:51}, pthread_create(&t1, 0, thr1, 0)=-1, t1={5:0}, t2={3:0}, x=0] [L699] 1 x < 50 VAL [arg={0:0}, arg={0:0}, x=0] [L713] 0 i = 0 VAL [\old(argc)=52, argc=52, argv={50:51}, argv={50:51}, i=0, t1={5:0}, t2={3:0}, x=0] [L713] COND TRUE 0 i < 50 [L714] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(argc)=52, arg={0:0}, argc=52, argv={50:51}, argv={50:51}, i=0, pthread_create(&t2, 0, thr2, 0)=0, t1={5:0}, t2={3:0}, x=0] [L703] 2 int t; [L704] 2 t = x VAL [arg={0:0}, arg={0:0}, t=0, x=0] [L705] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, t=0, x=1, x = t + 1=49] [L699] 1 x < 50 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t=0, x=1, x = t + 1=49] Now there is a data race on ~x~0 between C: x = t + 1 [705] and C: x < 50 [699] - 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: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: 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: 712]: 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, 113 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 7 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 143 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 128 IncrementalHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 45 mSDtfsCounter, 128 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=2677occurred 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: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 710 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 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! [2022-11-22 00:27:41,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d63e11b-af51-465c-b8b2-022204641cdf/bin/utaipan-g80aRyZoba/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