./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2b-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/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_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2b-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/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_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/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 c6b79a0708426757fcf437de19fb59e33e03e479ed1138497675a4f18cf715c6 --- 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 08:42:19,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:42:19,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:42:19,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:42:19,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:42:19,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:42:19,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:42:19,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:42:19,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:42:19,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:42:19,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:42:19,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:42:19,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:42:19,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:42:19,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:42:19,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:42:19,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:42:19,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:42:19,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:42:19,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:42:19,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:42:19,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:42:19,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:42:19,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:42:19,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:42:19,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:42:19,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:42:19,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:42:19,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:42:19,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:42:19,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:42:19,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:42:19,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:42:19,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:42:19,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:42:19,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:42:19,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:42:19,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:42:19,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:42:19,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:42:19,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:42:19,632 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 08:42:19,647 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:42:19,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:42:19,647 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:42:19,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:42:19,648 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:42:19,648 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:42:19,648 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:42:19,648 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:42:19,649 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:42:19,649 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:42:19,649 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:42:19,649 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:42:19,649 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:42:19,649 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:42:19,649 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:42:19,649 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:42:19,650 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:42:19,650 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:42:19,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:42:19,650 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:42:19,650 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:42:19,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:42:19,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:42:19,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:42:19,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:42:19,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:42:19,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:42:19,651 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 08:42:19,651 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:42:19,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:42:19,651 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:42:19,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:42:19,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:42:19,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:42:19,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:42:19,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:42:19,652 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:42:19,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:42:19,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:42:19,653 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:42:19,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:42:19,653 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:42:19,653 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:42:19,653 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_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6b79a0708426757fcf437de19fb59e33e03e479ed1138497675a4f18cf715c6 [2022-12-14 08:42:19,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:42:19,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:42:19,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:42:19,840 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:42:19,841 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:42:19,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-races/race-2_2b-container_of.i [2022-12-14 08:42:22,363 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:42:22,574 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:42:22,574 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/sv-benchmarks/c/ldv-races/race-2_2b-container_of.i [2022-12-14 08:42:22,586 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/bin/utaipan-gh47qXpMRh/data/77be64cde/d187f156274b4eafad92bb063a47b627/FLAGbba6503e6 [2022-12-14 08:42:22,936 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/bin/utaipan-gh47qXpMRh/data/77be64cde/d187f156274b4eafad92bb063a47b627 [2022-12-14 08:42:22,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:42:22,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:42:22,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:42:22,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:42:22,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:42:22,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:42:22" (1/1) ... [2022-12-14 08:42:22,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e90a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:42:22, skipping insertion in model container [2022-12-14 08:42:22,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:42:22" (1/1) ... [2022-12-14 08:42:22,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:42:23,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:42:23,488 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_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/sv-benchmarks/c/ldv-races/race-2_2b-container_of.i[76077,76090] [2022-12-14 08:42:23,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:42:23,540 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:42:23,580 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_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/sv-benchmarks/c/ldv-races/race-2_2b-container_of.i[76077,76090] [2022-12-14 08:42:23,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:42:23,658 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:42:23,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:42:23 WrapperNode [2022-12-14 08:42:23,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:42:23,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:42:23,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:42:23,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:42:23,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:42:23" (1/1) ... [2022-12-14 08:42:23,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:42:23" (1/1) ... [2022-12-14 08:42:23,701 INFO L138 Inliner]: procedures = 481, calls = 41, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 173 [2022-12-14 08:42:23,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:42:23,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:42:23,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:42:23,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:42:23,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:42:23" (1/1) ... [2022-12-14 08:42:23,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:42:23" (1/1) ... [2022-12-14 08:42:23,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:42:23" (1/1) ... [2022-12-14 08:42:23,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:42:23" (1/1) ... [2022-12-14 08:42:23,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:42:23" (1/1) ... [2022-12-14 08:42:23,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:42:23" (1/1) ... [2022-12-14 08:42:23,751 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:42:23" (1/1) ... [2022-12-14 08:42:23,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:42:23" (1/1) ... [2022-12-14 08:42:23,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:42:23,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:42:23,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:42:23,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:42:23,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:42:23" (1/1) ... [2022-12-14 08:42:23,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:42:23,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:42:23,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:42:23,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:42:23,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:42:23,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:42:23,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:42:23,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 08:42:23,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:42:23,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:42:23,820 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-12-14 08:42:23,821 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-12-14 08:42:23,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:42:23,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:42:23,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:42:23,822 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 08:42:24,036 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:42:24,038 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:42:24,334 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:42:24,340 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:42:24,340 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:42:24,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:42:24 BoogieIcfgContainer [2022-12-14 08:42:24,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:42:24,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:42:24,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:42:24,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:42:24,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:42:22" (1/3) ... [2022-12-14 08:42:24,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8611c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:42:24, skipping insertion in model container [2022-12-14 08:42:24,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:42:23" (2/3) ... [2022-12-14 08:42:24,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8611c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:42:24, skipping insertion in model container [2022-12-14 08:42:24,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:42:24" (3/3) ... [2022-12-14 08:42:24,348 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2b-container_of.i [2022-12-14 08:42:24,355 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 08:42:24,362 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:42:24,363 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-12-14 08:42:24,363 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 08:42:24,415 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 08:42:24,448 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 08:42:24,459 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 273 places, 273 transitions, 562 flow [2022-12-14 08:42:24,461 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 273 places, 273 transitions, 562 flow [2022-12-14 08:42:24,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 273 places, 273 transitions, 562 flow [2022-12-14 08:42:24,542 INFO L130 PetriNetUnfolder]: 8/350 cut-off events. [2022-12-14 08:42:24,542 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 08:42:24,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 350 events. 8/350 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 786 event pairs, 0 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 184. Up to 4 conditions per place. [2022-12-14 08:42:24,552 INFO L119 LiptonReduction]: Number of co-enabled transitions 14124 [2022-12-14 08:43:19,593 WARN L233 SmtUtils]: Spent 18.09s on a formula simplification. DAG size of input: 190 DAG size of output: 188 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:43:25,876 WARN L233 SmtUtils]: Spent 6.28s on a formula simplification that was a NOOP. DAG size: 178 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:43:42,923 WARN L233 SmtUtils]: Spent 17.04s on a formula simplification. DAG size of input: 190 DAG size of output: 188 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:43:49,714 WARN L233 SmtUtils]: Spent 6.79s on a formula simplification that was a NOOP. DAG size: 178 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:43:56,560 WARN L233 SmtUtils]: Spent 6.81s on a formula simplification. DAG size of input: 178 DAG size of output: 176 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:44:06,712 WARN L233 SmtUtils]: Spent 8.16s on a formula simplification. DAG size of input: 178 DAG size of output: 176 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:44:19,444 WARN L233 SmtUtils]: Spent 6.57s on a formula simplification. DAG size of input: 121 DAG size of output: 119 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 08:44:21,189 INFO L134 LiptonReduction]: Checked pairs total: 187604 [2022-12-14 08:44:21,190 INFO L136 LiptonReduction]: Total number of compositions: 237 [2022-12-14 08:44:21,197 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 105 places, 102 transitions, 220 flow [2022-12-14 08:44:21,691 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 18192 states, 18067 states have (on average 2.912104942713234) internal successors, (52613), 18191 states have internal predecessors, (52613), 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 08:44:21,710 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:44:21,714 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;@36a4c65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:44:21,714 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-12-14 08:44:21,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 18192 states, 18067 states have (on average 2.912104942713234) internal successors, (52613), 18191 states have internal predecessors, (52613), 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 08:44:21,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 08:44:21,768 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:44:21,769 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 08:44:21,769 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-14 08:44:21,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:44:21,774 INFO L85 PathProgramCache]: Analyzing trace with hash 841, now seen corresponding path program 1 times [2022-12-14 08:44:21,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:44:21,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712408275] [2022-12-14 08:44:21,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:44:21,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:44:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:44:21,964 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 08:44:21,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:44:21,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712408275] [2022-12-14 08:44:21,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712408275] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:44:21,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:44:21,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 08:44:21,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210186944] [2022-12-14 08:44:21,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:44:21,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:44:21,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:44:22,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:44:22,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:44:22,050 INFO L87 Difference]: Start difference. First operand has 18192 states, 18067 states have (on average 2.912104942713234) internal successors, (52613), 18191 states have internal predecessors, (52613), 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 08:44:22,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:44:22,434 INFO L93 Difference]: Finished difference Result 18188 states and 52124 transitions. [2022-12-14 08:44:22,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:44:22,437 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 08:44:22,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:44:22,566 INFO L225 Difference]: With dead ends: 18188 [2022-12-14 08:44:22,566 INFO L226 Difference]: Without dead ends: 18186 [2022-12-14 08:44:22,567 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 08:44:22,569 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:44:22,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:44:22,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18186 states. [2022-12-14 08:44:23,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18186 to 18186. [2022-12-14 08:44:23,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18186 states, 18067 states have (on average 2.884817623291083) internal successors, (52120), 18185 states have internal predecessors, (52120), 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 08:44:23,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18186 states to 18186 states and 52120 transitions. [2022-12-14 08:44:23,277 INFO L78 Accepts]: Start accepts. Automaton has 18186 states and 52120 transitions. Word has length 1 [2022-12-14 08:44:23,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:44:23,277 INFO L495 AbstractCegarLoop]: Abstraction has 18186 states and 52120 transitions. [2022-12-14 08:44:23,277 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 08:44:23,277 INFO L276 IsEmpty]: Start isEmpty. Operand 18186 states and 52120 transitions. [2022-12-14 08:44:23,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 08:44:23,278 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:44:23,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:44:23,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:44:23,279 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-14 08:44:23,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:44:23,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1112912394, now seen corresponding path program 1 times [2022-12-14 08:44:23,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:44:23,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990261413] [2022-12-14 08:44:23,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:44:23,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:44:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:44:23,468 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 08:44:23,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:44:23,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990261413] [2022-12-14 08:44:23,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990261413] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:44:23,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:44:23,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:44:23,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443708560] [2022-12-14 08:44:23,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:44:23,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:44:23,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:44:23,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:44:23,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:44:23,472 INFO L87 Difference]: Start difference. First operand 18186 states and 52120 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 08:44:23,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:44:23,928 INFO L93 Difference]: Finished difference Result 18203 states and 52136 transitions. [2022-12-14 08:44:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:44:23,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-12-14 08:44:23,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:44:23,984 INFO L225 Difference]: With dead ends: 18203 [2022-12-14 08:44:23,984 INFO L226 Difference]: Without dead ends: 18203 [2022-12-14 08:44:23,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:44:23,985 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 27 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:44:23,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 134 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 08:44:24,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18203 states. [2022-12-14 08:44:24,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18203 to 18180. [2022-12-14 08:44:24,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18180 states, 18062 states have (on average 2.885284021703023) internal successors, (52114), 18179 states have internal predecessors, (52114), 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 08:44:24,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18180 states to 18180 states and 52114 transitions. [2022-12-14 08:44:24,348 INFO L78 Accepts]: Start accepts. Automaton has 18180 states and 52114 transitions. Word has length 7 [2022-12-14 08:44:24,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:44:24,348 INFO L495 AbstractCegarLoop]: Abstraction has 18180 states and 52114 transitions. [2022-12-14 08:44:24,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 08:44:24,348 INFO L276 IsEmpty]: Start isEmpty. Operand 18180 states and 52114 transitions. [2022-12-14 08:44:24,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 08:44:24,348 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:44:24,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:44:24,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:44:24,349 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-14 08:44:24,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:44:24,349 INFO L85 PathProgramCache]: Analyzing trace with hash 81203217, now seen corresponding path program 1 times [2022-12-14 08:44:24,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:44:24,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811135706] [2022-12-14 08:44:24,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:44:24,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:44:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:44:24,723 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 08:44:24,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:44:24,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811135706] [2022-12-14 08:44:24,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811135706] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:44:24,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:44:24,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:44:24,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209722181] [2022-12-14 08:44:24,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:44:24,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 08:44:24,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:44:24,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 08:44:24,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 08:44:24,725 INFO L87 Difference]: Start difference. First operand 18180 states and 52114 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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 08:44:25,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:44:25,502 INFO L93 Difference]: Finished difference Result 20575 states and 59081 transitions. [2022-12-14 08:44:25,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:44:25,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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 7 [2022-12-14 08:44:25,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:44:25,572 INFO L225 Difference]: With dead ends: 20575 [2022-12-14 08:44:25,572 INFO L226 Difference]: Without dead ends: 20575 [2022-12-14 08:44:25,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 08:44:25,574 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 74 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 08:44:25,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 85 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 08:44:25,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20575 states. [2022-12-14 08:44:25,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20575 to 20095. [2022-12-14 08:44:26,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20095 states, 19978 states have (on average 2.887426168785664) internal successors, (57685), 20094 states have internal predecessors, (57685), 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 08:44:26,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20095 states to 20095 states and 57685 transitions. [2022-12-14 08:44:26,060 INFO L78 Accepts]: Start accepts. Automaton has 20095 states and 57685 transitions. Word has length 7 [2022-12-14 08:44:26,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:44:26,060 INFO L495 AbstractCegarLoop]: Abstraction has 20095 states and 57685 transitions. [2022-12-14 08:44:26,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 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 08:44:26,061 INFO L276 IsEmpty]: Start isEmpty. Operand 20095 states and 57685 transitions. [2022-12-14 08:44:26,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 08:44:26,061 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:44:26,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:44:26,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:44:26,062 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-14 08:44:26,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:44:26,062 INFO L85 PathProgramCache]: Analyzing trace with hash 175128966, now seen corresponding path program 1 times [2022-12-14 08:44:26,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:44:26,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216003382] [2022-12-14 08:44:26,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:44:26,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:44:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:44:26,449 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 08:44:26,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:44:26,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216003382] [2022-12-14 08:44:26,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216003382] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:44:26,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:44:26,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:44:26,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575023073] [2022-12-14 08:44:26,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:44:26,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 08:44:26,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:44:26,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 08:44:26,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 08:44:26,451 INFO L87 Difference]: Start difference. First operand 20095 states and 57685 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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 08:44:27,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:44:27,399 INFO L93 Difference]: Finished difference Result 24199 states and 69688 transitions. [2022-12-14 08:44:27,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:44:27,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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 8 [2022-12-14 08:44:27,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:44:27,469 INFO L225 Difference]: With dead ends: 24199 [2022-12-14 08:44:27,469 INFO L226 Difference]: Without dead ends: 24199 [2022-12-14 08:44:27,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 08:44:27,470 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 111 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 08:44:27,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 83 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 08:44:27,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24199 states. [2022-12-14 08:44:27,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24199 to 23307. [2022-12-14 08:44:27,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23307 states, 23190 states have (on average 2.892496765847348) internal successors, (67077), 23306 states have internal predecessors, (67077), 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 08:44:28,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23307 states to 23307 states and 67077 transitions. [2022-12-14 08:44:28,021 INFO L78 Accepts]: Start accepts. Automaton has 23307 states and 67077 transitions. Word has length 8 [2022-12-14 08:44:28,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:44:28,021 INFO L495 AbstractCegarLoop]: Abstraction has 23307 states and 67077 transitions. [2022-12-14 08:44:28,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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 08:44:28,022 INFO L276 IsEmpty]: Start isEmpty. Operand 23307 states and 67077 transitions. [2022-12-14 08:44:28,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 08:44:28,023 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:44:28,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:44:28,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 08:44:28,023 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-14 08:44:28,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:44:28,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1850314961, now seen corresponding path program 1 times [2022-12-14 08:44:28,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:44:28,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990247929] [2022-12-14 08:44:28,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:44:28,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:44:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:44:28,383 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 08:44:28,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:44:28,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990247929] [2022-12-14 08:44:28,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990247929] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:44:28,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:44:28,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:44:28,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654187345] [2022-12-14 08:44:28,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:44:28,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 08:44:28,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:44:28,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 08:44:28,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 08:44:28,385 INFO L87 Difference]: Start difference. First operand 23307 states and 67077 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 08:44:29,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:44:29,688 INFO L93 Difference]: Finished difference Result 27596 states and 79582 transitions. [2022-12-14 08:44:29,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:44:29,689 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 10 [2022-12-14 08:44:29,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:44:29,757 INFO L225 Difference]: With dead ends: 27596 [2022-12-14 08:44:29,757 INFO L226 Difference]: Without dead ends: 27596 [2022-12-14 08:44:29,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 08:44:29,758 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 122 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:44:29,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 96 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 08:44:29,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27596 states. [2022-12-14 08:44:30,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27596 to 26552. [2022-12-14 08:44:30,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26552 states, 26435 states have (on average 2.8949877056932096) internal successors, (76529), 26551 states have internal predecessors, (76529), 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 08:44:30,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26552 states to 26552 states and 76529 transitions. [2022-12-14 08:44:30,279 INFO L78 Accepts]: Start accepts. Automaton has 26552 states and 76529 transitions. Word has length 10 [2022-12-14 08:44:30,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:44:30,280 INFO L495 AbstractCegarLoop]: Abstraction has 26552 states and 76529 transitions. [2022-12-14 08:44:30,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 08:44:30,280 INFO L276 IsEmpty]: Start isEmpty. Operand 26552 states and 76529 transitions. [2022-12-14 08:44:30,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 08:44:30,283 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:44:30,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:44:30,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 08:44:30,283 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-14 08:44:30,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:44:30,284 INFO L85 PathProgramCache]: Analyzing trace with hash -556004377, now seen corresponding path program 1 times [2022-12-14 08:44:30,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:44:30,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328851961] [2022-12-14 08:44:30,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:44:30,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:44:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:44:30,557 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 08:44:30,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:44:30,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328851961] [2022-12-14 08:44:30,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328851961] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:44:30,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:44:30,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:44:30,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560893384] [2022-12-14 08:44:30,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:44:30,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 08:44:30,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:44:30,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 08:44:30,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 08:44:30,559 INFO L87 Difference]: Start difference. First operand 26552 states and 76529 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 08:44:31,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:44:31,432 INFO L93 Difference]: Finished difference Result 29325 states and 83753 transitions. [2022-12-14 08:44:31,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:44:31,433 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2022-12-14 08:44:31,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:44:31,497 INFO L225 Difference]: With dead ends: 29325 [2022-12-14 08:44:31,497 INFO L226 Difference]: Without dead ends: 29325 [2022-12-14 08:44:31,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 08:44:31,498 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 93 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 08:44:31,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 84 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 08:44:31,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29325 states. [2022-12-14 08:44:31,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29325 to 28463. [2022-12-14 08:44:31,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28463 states, 28346 states have (on average 2.8958583221618572) internal successors, (82086), 28462 states have internal predecessors, (82086), 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 08:44:32,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28463 states to 28463 states and 82086 transitions. [2022-12-14 08:44:32,001 INFO L78 Accepts]: Start accepts. Automaton has 28463 states and 82086 transitions. Word has length 11 [2022-12-14 08:44:32,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:44:32,002 INFO L495 AbstractCegarLoop]: Abstraction has 28463 states and 82086 transitions. [2022-12-14 08:44:32,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 08:44:32,002 INFO L276 IsEmpty]: Start isEmpty. Operand 28463 states and 82086 transitions. [2022-12-14 08:44:32,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 08:44:32,003 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:44:32,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:44:32,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 08:44:32,004 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-14 08:44:32,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:44:32,004 INFO L85 PathProgramCache]: Analyzing trace with hash -975187396, now seen corresponding path program 1 times [2022-12-14 08:44:32,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:44:32,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956047023] [2022-12-14 08:44:32,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:44:32,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:44:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:44:32,045 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:44:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:44:32,087 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:44:32,088 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:44:32,088 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2022-12-14 08:44:32,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2022-12-14 08:44:32,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2022-12-14 08:44:32,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2022-12-14 08:44:32,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2022-12-14 08:44:32,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2022-12-14 08:44:32,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2022-12-14 08:44:32,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2022-12-14 08:44:32,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2022-12-14 08:44:32,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2022-12-14 08:44:32,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2022-12-14 08:44:32,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 21 remaining) [2022-12-14 08:44:32,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 21 remaining) [2022-12-14 08:44:32,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2022-12-14 08:44:32,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2022-12-14 08:44:32,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2022-12-14 08:44:32,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2022-12-14 08:44:32,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2022-12-14 08:44:32,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2022-12-14 08:44:32,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2022-12-14 08:44:32,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2022-12-14 08:44:32,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 08:44:32,093 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:44:32,097 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 08:44:32,097 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:44:32,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:44:32 BasicIcfg [2022-12-14 08:44:32,117 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:44:32,117 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:44:32,117 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:44:32,117 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:44:32,117 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:42:24" (3/4) ... [2022-12-14 08:44:32,120 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:44:32,120 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:44:32,120 INFO L158 Benchmark]: Toolchain (without parser) took 129176.41ms. Allocated memory was 111.1MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 56.8MB in the beginning and 387.0MB in the end (delta: -330.2MB). Peak memory consumption was 777.3MB. Max. memory is 16.1GB. [2022-12-14 08:44:32,120 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 111.1MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:44:32,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 711.49ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 56.5MB in the beginning and 59.9MB in the end (delta: -3.3MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2022-12-14 08:44:32,121 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.52ms. Allocated memory is still 134.2MB. Free memory was 59.9MB in the beginning and 55.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 08:44:32,121 INFO L158 Benchmark]: Boogie Preprocessor took 55.50ms. Allocated memory is still 134.2MB. Free memory was 55.7MB in the beginning and 98.3MB in the end (delta: -42.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 08:44:32,121 INFO L158 Benchmark]: RCFGBuilder took 584.34ms. Allocated memory is still 134.2MB. Free memory was 98.3MB in the beginning and 67.7MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-12-14 08:44:32,121 INFO L158 Benchmark]: TraceAbstraction took 127773.16ms. Allocated memory was 134.2MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 67.0MB in the beginning and 387.0MB in the end (delta: -320.0MB). Peak memory consumption was 764.6MB. Max. memory is 16.1GB. [2022-12-14 08:44:32,121 INFO L158 Benchmark]: Witness Printer took 2.82ms. Allocated memory is still 1.2GB. Free memory is still 387.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:44:32,122 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 111.1MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 711.49ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 56.5MB in the beginning and 59.9MB in the end (delta: -3.3MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.52ms. Allocated memory is still 134.2MB. Free memory was 59.9MB in the beginning and 55.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.50ms. Allocated memory is still 134.2MB. Free memory was 55.7MB in the beginning and 98.3MB in the end (delta: -42.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 584.34ms. Allocated memory is still 134.2MB. Free memory was 98.3MB in the beginning and 67.7MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 127773.16ms. Allocated memory was 134.2MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 67.0MB in the beginning and 387.0MB in the end (delta: -320.0MB). Peak memory consumption was 764.6MB. Max. memory is 16.1GB. * Witness Printer took 2.82ms. Allocated memory is still 1.2GB. Free memory is still 387.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 116.7s, 273 PlacesBefore, 105 PlacesAfterwards, 273 TransitionsBefore, 102 TransitionsAfterwards, 14124 CoEnabledTransitionPairs, 20 FixpointIterations, 121 TrivialSequentialCompositions, 81 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 28 ConcurrentYvCompositions, 3 ChoiceCompositions, 237 TotalNumberOfCompositions, 187604 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16812, independent: 13493, independent conditional: 0, independent unconditional: 13493, dependent: 3224, dependent conditional: 0, dependent unconditional: 3224, unknown: 95, unknown conditional: 0, unknown unconditional: 95] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7229, independent: 6949, independent conditional: 0, independent unconditional: 6949, dependent: 271, dependent conditional: 0, dependent unconditional: 271, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7229, independent: 6355, independent conditional: 0, independent unconditional: 6355, dependent: 874, dependent conditional: 0, dependent unconditional: 874, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 874, independent: 594, independent conditional: 0, independent unconditional: 594, dependent: 271, dependent conditional: 0, dependent unconditional: 271, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20201, independent: 300, independent conditional: 0, independent unconditional: 300, dependent: 766, dependent conditional: 0, dependent unconditional: 766, unknown: 19135, unknown conditional: 0, unknown unconditional: 19135] ], Cache Queries: [ total: 16812, independent: 6544, independent conditional: 0, independent unconditional: 6544, dependent: 2953, dependent conditional: 0, dependent unconditional: 2953, unknown: 7315, unknown conditional: 0, unknown unconditional: 7315] , Statistics on independence cache: Total cache size (in pairs): 664, Positive cache size: 469, Positive conditional cache size: 0, Positive unconditional cache size: 469, Negative cache size: 195, Negative conditional cache size: 0, Negative unconditional cache size: 195, Unknown cache size: 6, Unknown conditional cache size: 0, Unknown unconditional cache size: 6 - 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: 1710]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1,t2; [L1742] CALL, EXPR 0 my_drv_init() [L1736] 0 return 0; [L1742] RET, EXPR 0 my_drv_init() [L1742] 0 int ret = my_drv_init(); [L1743] COND TRUE 0 ret==0 [L1744] 0 int probe_ret; [L1745] 0 struct my_data data; [L1746] CALL 0 my_drv_probe(&data) [L1715] 0 struct device *d = &data->dev; [L1717] 0 data->shared.a = 0 [L1718] 0 data->shared.b = 0 [L1719] 0 int res = __VERIFIER_nondet_int(); [L1720] COND FALSE 0 !(\read(res)) [L1722] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=-2, res=0, t1={3:0}, t2={4:0}] [L1707] 1 struct device *dev = (struct device*)arg; [L1708] 1 struct my_data *data; [L1709] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1709] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1710] 1 data->shared.a = 1 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1723] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=-1, res=0, t1={3:0}, t2={4:0}] [L1707] 2 struct device *dev = (struct device*)arg; [L1708] 2 struct my_data *data; [L1709] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1709] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1710] 2 data->shared.a = 1 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, data->shared.a = 1=1156, dev={5:24}, t1={3:0}, t2={4:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: data->shared.a = 0 [1717] * C: data->shared.b = 0 [1718] * C: data->shared.b = 0 [1718] * C: data->shared.b = 0 [1718] * C: data->shared.a = 0 [1717] * C: data->shared.b = 0 [1718] * C: data->shared.a = 0 [1717] * C: data->shared.a = 0 [1717] and C: data->shared.a = 1 [1710] - UnprovableResult [Line: 1717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1753]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1731]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1754]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1732]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1755]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1749]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1756]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1750]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: 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: 1723]: 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: 1711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 303 locations, 21 error locations. Started 1 CEGAR loops. OverallTime: 127.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 117.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 427 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 427 mSDsluCounter, 549 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 126 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3024 IncrementalHoareTripleChecker+Invalid, 3080 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 423 mSDtfsCounter, 3024 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28463occurred in iteration=6, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 3301 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 390 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 08:44:32,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f66988-4d04-4344-93a2-2e14dc2d9fa5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE