./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d6aa6ef36156b11d9501f41a7beea3c182ea6a120d3ddbfd55ede5953f5f6e32 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:50:15,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:50:15,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:50:15,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:50:15,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:50:15,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:50:15,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:50:15,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:50:15,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:50:15,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:50:15,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:50:15,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:50:15,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:50:15,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:50:15,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:50:15,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:50:15,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:50:15,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:50:15,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:50:15,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:50:15,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:50:15,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:50:15,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:50:15,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:50:15,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:50:15,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:50:15,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:50:15,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:50:15,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:50:15,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:50:15,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:50:15,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:50:15,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:50:15,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:50:15,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:50:15,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:50:15,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:50:15,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:50:15,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:50:15,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:50:15,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:50:15,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 07:50:15,936 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:50:15,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:50:15,937 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:50:15,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:50:15,947 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:50:15,947 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:50:15,947 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:50:15,948 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:50:15,948 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:50:15,948 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:50:15,948 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:50:15,948 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:50:15,949 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:50:15,949 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:50:15,949 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:50:15,949 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:50:15,949 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:50:15,950 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:50:15,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:50:15,950 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:50:15,951 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:50:15,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:50:15,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:50:15,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:50:15,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:50:15,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:50:15,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:50:15,952 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 07:50:15,952 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:50:15,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:50:15,952 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:50:15,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:50:15,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:50:15,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:50:15,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:50:15,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:50:15,954 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:50:15,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:50:15,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:50:15,954 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:50:15,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:50:15,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:50:15,955 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:50:15,955 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_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6aa6ef36156b11d9501f41a7beea3c182ea6a120d3ddbfd55ede5953f5f6e32 [2022-12-14 07:50:16,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:50:16,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:50:16,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:50:16,161 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:50:16,161 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:50:16,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2022-12-14 07:50:18,863 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:50:19,044 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:50:19,044 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2022-12-14 07:50:19,049 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/bin/utaipan-gh47qXpMRh/data/157cbc0f1/2598048139de480c8af01958d1541507/FLAG8252bf6d2 [2022-12-14 07:50:19,060 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/bin/utaipan-gh47qXpMRh/data/157cbc0f1/2598048139de480c8af01958d1541507 [2022-12-14 07:50:19,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:50:19,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:50:19,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:50:19,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:50:19,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:50:19,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:50:19" (1/1) ... [2022-12-14 07:50:19,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28683103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:50:19, skipping insertion in model container [2022-12-14 07:50:19,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:50:19" (1/1) ... [2022-12-14 07:50:19,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:50:19,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:50:19,222 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_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c[2781,2794] [2022-12-14 07:50:19,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:50:19,233 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:50:19,259 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_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c[2781,2794] [2022-12-14 07:50:19,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:50:19,274 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:50:19,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:50:19 WrapperNode [2022-12-14 07:50:19,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:50:19,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:50:19,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:50:19,275 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:50:19,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:50:19" (1/1) ... [2022-12-14 07:50:19,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:50:19" (1/1) ... [2022-12-14 07:50:19,319 INFO L138 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 508 [2022-12-14 07:50:19,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:50:19,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:50:19,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:50:19,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:50:19,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:50:19" (1/1) ... [2022-12-14 07:50:19,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:50:19" (1/1) ... [2022-12-14 07:50:19,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:50:19" (1/1) ... [2022-12-14 07:50:19,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:50:19" (1/1) ... [2022-12-14 07:50:19,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:50:19" (1/1) ... [2022-12-14 07:50:19,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:50:19" (1/1) ... [2022-12-14 07:50:19,353 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:50:19" (1/1) ... [2022-12-14 07:50:19,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:50:19" (1/1) ... [2022-12-14 07:50:19,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:50:19,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:50:19,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:50:19,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:50:19,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:50:19" (1/1) ... [2022-12-14 07:50:19,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:50:19,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:50:19,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:50:19,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30eb5d05-92ad-45b4-9bbb-5698fa39c6ce/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:50:19,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:50:19,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:50:19,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:50:19,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:50:19,413 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-14 07:50:19,414 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-14 07:50:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-14 07:50:19,414 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-14 07:50:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-14 07:50:19,414 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-14 07:50:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:50:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:50:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:50:19,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:50:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:50:19,416 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 07:50:19,506 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:50:19,508 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:50:20,107 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:50:20,116 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:50:20,116 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-14 07:50:20,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:50:20 BoogieIcfgContainer [2022-12-14 07:50:20,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:50:20,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:50:20,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:50:20,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:50:20,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:50:19" (1/3) ... [2022-12-14 07:50:20,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e7897c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:50:20, skipping insertion in model container [2022-12-14 07:50:20,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:50:19" (2/3) ... [2022-12-14 07:50:20,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e7897c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:50:20, skipping insertion in model container [2022-12-14 07:50:20,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:50:20" (3/3) ... [2022-12-14 07:50:20,124 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-subst.wvr.c [2022-12-14 07:50:20,131 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 07:50:20,138 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:50:20,138 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 62 error locations. [2022-12-14 07:50:20,139 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 07:50:20,241 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-14 07:50:20,272 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 07:50:20,283 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 627 places, 650 transitions, 1324 flow [2022-12-14 07:50:20,285 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 627 places, 650 transitions, 1324 flow [2022-12-14 07:50:20,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 627 places, 650 transitions, 1324 flow [2022-12-14 07:50:20,467 INFO L130 PetriNetUnfolder]: 33/647 cut-off events. [2022-12-14 07:50:20,467 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-14 07:50:20,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 660 conditions, 647 events. 33/647 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1513 event pairs, 0 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 460. Up to 3 conditions per place. [2022-12-14 07:50:20,537 INFO L119 LiptonReduction]: Number of co-enabled transitions 94392 [2022-12-14 07:50:41,794 INFO L134 LiptonReduction]: Checked pairs total: 939966 [2022-12-14 07:50:41,794 INFO L136 LiptonReduction]: Total number of compositions: 831 [2022-12-14 07:50:41,801 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 193 places, 199 transitions, 422 flow [2022-12-14 07:50:53,870 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 653887 states, 646881 states have (on average 4.095858434549786) internal successors, (2649533), 653886 states have internal predecessors, (2649533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:50:53,886 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:50:53,891 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;@12a34848, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:50:53,891 INFO L358 AbstractCegarLoop]: Starting to check reachability of 107 error locations. [2022-12-14 07:50:54,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 653887 states, 646881 states have (on average 4.095858434549786) internal successors, (2649533), 653886 states have internal predecessors, (2649533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:50:54,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 07:50:54,663 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:50:54,663 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 07:50:54,664 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2022-12-14 07:50:54,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:50:54,669 INFO L85 PathProgramCache]: Analyzing trace with hash 2511, now seen corresponding path program 1 times [2022-12-14 07:50:54,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:50:54,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119106613] [2022-12-14 07:50:54,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:50:54,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:50:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:50:54,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:50:54,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:50:54,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119106613] [2022-12-14 07:50:54,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119106613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:50:54,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:50:54,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 07:50:54,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725029081] [2022-12-14 07:50:54,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:50:54,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 07:50:54,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:50:54,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 07:50:54,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 07:50:55,618 INFO L87 Difference]: Start difference. First operand has 653887 states, 646881 states have (on average 4.095858434549786) internal successors, (2649533), 653886 states have internal predecessors, (2649533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:50:59,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:50:59,571 INFO L93 Difference]: Finished difference Result 309400 states and 1236251 transitions. [2022-12-14 07:50:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 07:50:59,574 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-12-14 07:50:59,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:01,855 INFO L225 Difference]: With dead ends: 309400 [2022-12-14 07:51:01,855 INFO L226 Difference]: Without dead ends: 309395 [2022-12-14 07:51:01,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 07:51:01,859 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:01,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 07:51:02,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309395 states. [2022-12-14 07:51:09,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309395 to 309395. [2022-12-14 07:51:10,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309395 states, 309116 states have (on average 3.999275352941938) internal successors, (1236240), 309394 states have internal predecessors, (1236240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:51:12,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309395 states to 309395 states and 1236240 transitions. [2022-12-14 07:51:12,066 INFO L78 Accepts]: Start accepts. Automaton has 309395 states and 1236240 transitions. Word has length 1 [2022-12-14 07:51:12,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:12,067 INFO L495 AbstractCegarLoop]: Abstraction has 309395 states and 1236240 transitions. [2022-12-14 07:51:12,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:51:12,067 INFO L276 IsEmpty]: Start isEmpty. Operand 309395 states and 1236240 transitions. [2022-12-14 07:51:12,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 07:51:12,068 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:12,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:12,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:51:12,069 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2022-12-14 07:51:12,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:12,069 INFO L85 PathProgramCache]: Analyzing trace with hash -468982473, now seen corresponding path program 1 times [2022-12-14 07:51:12,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:12,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465317197] [2022-12-14 07:51:12,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:12,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:51:12,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:12,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465317197] [2022-12-14 07:51:12,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465317197] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:12,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:12,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:51:12,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198966582] [2022-12-14 07:51:12,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:12,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:51:12,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:12,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:51:12,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:51:12,438 INFO L87 Difference]: Start difference. First operand 309395 states and 1236240 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:51:15,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:15,568 INFO L93 Difference]: Finished difference Result 266771 states and 1058408 transitions. [2022-12-14 07:51:15,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:51:15,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2022-12-14 07:51:15,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:17,270 INFO L225 Difference]: With dead ends: 266771 [2022-12-14 07:51:17,271 INFO L226 Difference]: Without dead ends: 266771 [2022-12-14 07:51:17,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:51:17,272 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 163 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:17,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 68 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 866 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 07:51:18,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266771 states. [2022-12-14 07:51:23,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266771 to 266771. [2022-12-14 07:51:23,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266771 states, 266617 states have (on average 3.969769369545078) internal successors, (1058408), 266770 states have internal predecessors, (1058408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:51:25,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266771 states to 266771 states and 1058408 transitions. [2022-12-14 07:51:25,506 INFO L78 Accepts]: Start accepts. Automaton has 266771 states and 1058408 transitions. Word has length 13 [2022-12-14 07:51:25,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:25,507 INFO L495 AbstractCegarLoop]: Abstraction has 266771 states and 1058408 transitions. [2022-12-14 07:51:25,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:51:25,507 INFO L276 IsEmpty]: Start isEmpty. Operand 266771 states and 1058408 transitions. [2022-12-14 07:51:25,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 07:51:25,511 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:25,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:25,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:51:25,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2022-12-14 07:51:25,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:25,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1665096097, now seen corresponding path program 1 times [2022-12-14 07:51:25,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:25,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131901260] [2022-12-14 07:51:25,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:25,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:25,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:51:25,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:25,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131901260] [2022-12-14 07:51:25,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131901260] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:25,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:25,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:51:25,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089288995] [2022-12-14 07:51:25,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:25,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:51:25,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:25,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:51:25,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:51:25,545 INFO L87 Difference]: Start difference. First operand 266771 states and 1058408 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:51:28,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:28,072 INFO L93 Difference]: Finished difference Result 273757 states and 1085944 transitions. [2022-12-14 07:51:28,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:51:28,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2022-12-14 07:51:28,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:29,486 INFO L225 Difference]: With dead ends: 273757 [2022-12-14 07:51:29,486 INFO L226 Difference]: Without dead ends: 273757 [2022-12-14 07:51:29,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:51:29,487 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 81 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:29,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 152 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 07:51:30,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273757 states. [2022-12-14 07:51:35,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273757 to 273757. [2022-12-14 07:51:36,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273757 states, 273603 states have (on average 3.9690500469658594) internal successors, (1085944), 273756 states have internal predecessors, (1085944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:51:37,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273757 states to 273757 states and 1085944 transitions. [2022-12-14 07:51:37,873 INFO L78 Accepts]: Start accepts. Automaton has 273757 states and 1085944 transitions. Word has length 16 [2022-12-14 07:51:37,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:37,873 INFO L495 AbstractCegarLoop]: Abstraction has 273757 states and 1085944 transitions. [2022-12-14 07:51:37,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:51:37,874 INFO L276 IsEmpty]: Start isEmpty. Operand 273757 states and 1085944 transitions. [2022-12-14 07:51:37,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 07:51:37,876 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:37,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:37,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:51:37,876 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2022-12-14 07:51:37,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:37,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1914396285, now seen corresponding path program 1 times [2022-12-14 07:51:37,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:37,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367161281] [2022-12-14 07:51:37,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:37,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:37,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:51:37,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:37,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367161281] [2022-12-14 07:51:37,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367161281] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:37,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:37,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:51:37,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297602712] [2022-12-14 07:51:37,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:37,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:51:37,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:37,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:51:37,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:51:37,961 INFO L87 Difference]: Start difference. First operand 273757 states and 1085944 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:51:41,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:41,269 INFO L93 Difference]: Finished difference Result 388136 states and 1508680 transitions. [2022-12-14 07:51:41,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 07:51:41,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2022-12-14 07:51:41,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:43,533 INFO L225 Difference]: With dead ends: 388136 [2022-12-14 07:51:43,534 INFO L226 Difference]: Without dead ends: 388136 [2022-12-14 07:51:43,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:51:43,535 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 463 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:43,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 288 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 07:51:44,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388136 states. [2022-12-14 07:51:51,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388136 to 308691. [2022-12-14 07:51:51,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308691 states, 308537 states have (on average 3.965913326440589) internal successors, (1223631), 308690 states have internal predecessors, (1223631), 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)