./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be7e18c-459b-4513-8512-1f8cfda8d8e9/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be7e18c-459b-4513-8512-1f8cfda8d8e9/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_5be7e18c-459b-4513-8512-1f8cfda8d8e9/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be7e18c-459b-4513-8512-1f8cfda8d8e9/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be7e18c-459b-4513-8512-1f8cfda8d8e9/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_5be7e18c-459b-4513-8512-1f8cfda8d8e9/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 645ee85d2a671dd1acf511bbf13e9e3bda7e0b5cc29e8abc16fb4ed3af500077 --- 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 03:18:52,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 03:18:52,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 03:18:52,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 03:18:52,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 03:18:52,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 03:18:52,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 03:18:52,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 03:18:52,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 03:18:52,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 03:18:52,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 03:18:52,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 03:18:52,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 03:18:52,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 03:18:52,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 03:18:52,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 03:18:52,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 03:18:52,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 03:18:52,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 03:18:52,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 03:18:52,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 03:18:52,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 03:18:52,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 03:18:52,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 03:18:52,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 03:18:52,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 03:18:52,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 03:18:52,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 03:18:52,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 03:18:52,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 03:18:52,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 03:18:52,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 03:18:52,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 03:18:52,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 03:18:52,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 03:18:52,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 03:18:52,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 03:18:52,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 03:18:52,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 03:18:52,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 03:18:52,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 03:18:52,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be7e18c-459b-4513-8512-1f8cfda8d8e9/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 03:18:52,614 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 03:18:52,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 03:18:52,615 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 03:18:52,615 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 03:18:52,615 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 03:18:52,615 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 03:18:52,615 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 03:18:52,616 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 03:18:52,616 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 03:18:52,616 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 03:18:52,616 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 03:18:52,616 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 03:18:52,616 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 03:18:52,616 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 03:18:52,616 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 03:18:52,617 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 03:18:52,617 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 03:18:52,617 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 03:18:52,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 03:18:52,617 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 03:18:52,618 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 03:18:52,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 03:18:52,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 03:18:52,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 03:18:52,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 03:18:52,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 03:18:52,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 03:18:52,618 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 03:18:52,619 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 03:18:52,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 03:18:52,619 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 03:18:52,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 03:18:52,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 03:18:52,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 03:18:52,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:18:52,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 03:18:52,619 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 03:18:52,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 03:18:52,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 03:18:52,620 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 03:18:52,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 03:18:52,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 03:18:52,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 03:18:52,620 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_5be7e18c-459b-4513-8512-1f8cfda8d8e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be7e18c-459b-4513-8512-1f8cfda8d8e9/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 645ee85d2a671dd1acf511bbf13e9e3bda7e0b5cc29e8abc16fb4ed3af500077 [2022-12-14 03:18:52,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 03:18:52,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 03:18:52,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 03:18:52,804 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 03:18:52,805 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 03:18:52,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be7e18c-459b-4513-8512-1f8cfda8d8e9/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-1.i [2022-12-14 03:18:55,396 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 03:18:55,563 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 03:18:55,563 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be7e18c-459b-4513-8512-1f8cfda8d8e9/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-1.i [2022-12-14 03:18:55,572 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be7e18c-459b-4513-8512-1f8cfda8d8e9/bin/utaipan-gh47qXpMRh/data/539f72bbb/c306bf5bd06d42f28c23b254dabbe20e/FLAG4822edd3a [2022-12-14 03:18:55,583 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be7e18c-459b-4513-8512-1f8cfda8d8e9/bin/utaipan-gh47qXpMRh/data/539f72bbb/c306bf5bd06d42f28c23b254dabbe20e [2022-12-14 03:18:55,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 03:18:55,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 03:18:55,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 03:18:55,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 03:18:55,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 03:18:55,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:18:55" (1/1) ... [2022-12-14 03:18:55,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9914635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:18:55, skipping insertion in model container [2022-12-14 03:18:55,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:18:55" (1/1) ... [2022-12-14 03:18:55,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 03:18:55,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 03:18:55,820 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_5be7e18c-459b-4513-8512-1f8cfda8d8e9/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-1.i[30035,30048] [2022-12-14 03:18:55,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:18:55,852 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 03:18:55,878 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_5be7e18c-459b-4513-8512-1f8cfda8d8e9/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-1.i[30035,30048] [2022-12-14 03:18:55,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 03:18:55,906 INFO L208 MainTranslator]: Completed translation [2022-12-14 03:18:55,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:18:55 WrapperNode [2022-12-14 03:18:55,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 03:18:55,907 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 03:18:55,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 03:18:55,907 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 03:18:55,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:18:55" (1/1) ... [2022-12-14 03:18:55,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:18:55" (1/1) ... [2022-12-14 03:18:55,938 INFO L138 Inliner]: procedures = 171, calls = 26, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 110 [2022-12-14 03:18:55,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 03:18:55,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 03:18:55,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 03:18:55,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 03:18:55,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:18:55" (1/1) ... [2022-12-14 03:18:55,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:18:55" (1/1) ... [2022-12-14 03:18:55,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:18:55" (1/1) ... [2022-12-14 03:18:55,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:18:55" (1/1) ... [2022-12-14 03:18:55,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:18:55" (1/1) ... [2022-12-14 03:18:55,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:18:55" (1/1) ... [2022-12-14 03:18:55,959 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:18:55" (1/1) ... [2022-12-14 03:18:55,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:18:55" (1/1) ... [2022-12-14 03:18:55,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 03:18:55,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 03:18:55,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 03:18:55,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 03:18:55,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:18:55" (1/1) ... [2022-12-14 03:18:55,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 03:18:55,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be7e18c-459b-4513-8512-1f8cfda8d8e9/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 03:18:55,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be7e18c-459b-4513-8512-1f8cfda8d8e9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 03:18:55,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be7e18c-459b-4513-8512-1f8cfda8d8e9/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 03:18:56,025 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-14 03:18:56,026 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-14 03:18:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-14 03:18:56,026 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-14 03:18:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 03:18:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 03:18:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 03:18:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 03:18:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 03:18:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 03:18:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 03:18:56,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 03:18:56,029 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 03:18:56,144 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 03:18:56,145 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 03:18:56,321 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 03:18:56,329 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 03:18:56,329 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 03:18:56,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:18:56 BoogieIcfgContainer [2022-12-14 03:18:56,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 03:18:56,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 03:18:56,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 03:18:56,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 03:18:56,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:18:55" (1/3) ... [2022-12-14 03:18:56,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1008c4cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:18:56, skipping insertion in model container [2022-12-14 03:18:56,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:18:55" (2/3) ... [2022-12-14 03:18:56,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1008c4cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:18:56, skipping insertion in model container [2022-12-14 03:18:56,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:18:56" (3/3) ... [2022-12-14 03:18:56,340 INFO L112 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-variant-1.i [2022-12-14 03:18:56,349 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 03:18:56,358 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 03:18:56,359 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-12-14 03:18:56,359 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 03:18:56,405 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 03:18:56,428 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 03:18:56,439 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 138 transitions, 286 flow [2022-12-14 03:18:56,441 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 138 transitions, 286 flow [2022-12-14 03:18:56,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 138 transitions, 286 flow [2022-12-14 03:18:56,484 INFO L130 PetriNetUnfolder]: 7/154 cut-off events. [2022-12-14 03:18:56,484 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 03:18:56,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 154 events. 7/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 190 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 101. Up to 4 conditions per place. [2022-12-14 03:18:56,489 INFO L119 LiptonReduction]: Number of co-enabled transitions 3398 [2022-12-14 03:18:59,917 INFO L134 LiptonReduction]: Checked pairs total: 6827 [2022-12-14 03:18:59,918 INFO L136 LiptonReduction]: Total number of compositions: 154 [2022-12-14 03:18:59,923 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 30 transitions, 70 flow [2022-12-14 03:18:59,964 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 418 states, 372 states have (on average 3.067204301075269) internal successors, (1141), 417 states have internal predecessors, (1141), 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 03:18:59,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 03:18:59,983 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;@6e4402db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 03:18:59,983 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-12-14 03:18:59,986 INFO L276 IsEmpty]: Start isEmpty. Operand has 418 states, 372 states have (on average 3.067204301075269) internal successors, (1141), 417 states have internal predecessors, (1141), 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 03:18:59,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 03:18:59,989 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:18:59,990 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 03:18:59,990 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-12-14 03:18:59,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:18:59,994 INFO L85 PathProgramCache]: Analyzing trace with hash 535, now seen corresponding path program 1 times [2022-12-14 03:19:00,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:19:00,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420138458] [2022-12-14 03:19:00,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:19:00,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:19:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:19:00,091 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 03:19:00,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:19:00,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420138458] [2022-12-14 03:19:00,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420138458] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:19:00,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:19:00,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 03:19:00,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210273358] [2022-12-14 03:19:00,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:19:00,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 03:19:00,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:19:00,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 03:19:00,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 03:19:00,123 INFO L87 Difference]: Start difference. First operand has 418 states, 372 states have (on average 3.067204301075269) internal successors, (1141), 417 states have internal predecessors, (1141), 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 03:19:00,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:19:00,164 INFO L93 Difference]: Finished difference Result 235 states and 594 transitions. [2022-12-14 03:19:00,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 03:19:00,166 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 03:19:00,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:19:00,178 INFO L225 Difference]: With dead ends: 235 [2022-12-14 03:19:00,178 INFO L226 Difference]: Without dead ends: 233 [2022-12-14 03:19:00,179 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 03:19:00,182 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:19:00,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 03:19:00,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-12-14 03:19:00,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2022-12-14 03:19:00,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 225 states have (on average 2.6133333333333333) internal successors, (588), 232 states have internal predecessors, (588), 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 03:19:00,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 588 transitions. [2022-12-14 03:19:00,221 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 588 transitions. Word has length 1 [2022-12-14 03:19:00,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:19:00,222 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 588 transitions. [2022-12-14 03:19:00,222 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 03:19:00,222 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 588 transitions. [2022-12-14 03:19:00,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 03:19:00,222 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:19:00,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 03:19:00,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 03:19:00,223 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-12-14 03:19:00,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:19:00,223 INFO L85 PathProgramCache]: Analyzing trace with hash 16437963, now seen corresponding path program 1 times [2022-12-14 03:19:00,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:19:00,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359692689] [2022-12-14 03:19:00,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:19:00,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:19:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:19:00,297 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 03:19:00,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:19:00,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359692689] [2022-12-14 03:19:00,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359692689] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:19:00,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:19:00,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 03:19:00,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092476831] [2022-12-14 03:19:00,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:19:00,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:19:00,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:19:00,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:19:00,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:19:00,300 INFO L87 Difference]: Start difference. First operand 233 states and 588 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:19:00,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:19:00,338 INFO L93 Difference]: Finished difference Result 262 states and 626 transitions. [2022-12-14 03:19:00,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:19:00,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 03:19:00,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:19:00,340 INFO L225 Difference]: With dead ends: 262 [2022-12-14 03:19:00,341 INFO L226 Difference]: Without dead ends: 257 [2022-12-14 03:19:00,341 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 03:19:00,342 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 14 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:19:00,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 9 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 03:19:00,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-12-14 03:19:00,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 218. [2022-12-14 03:19:00,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 211 states have (on average 2.5497630331753554) internal successors, (538), 217 states have internal predecessors, (538), 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 03:19:00,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 538 transitions. [2022-12-14 03:19:00,358 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 538 transitions. Word has length 4 [2022-12-14 03:19:00,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:19:00,358 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 538 transitions. [2022-12-14 03:19:00,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:19:00,359 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 538 transitions. [2022-12-14 03:19:00,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 03:19:00,359 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:19:00,360 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-12-14 03:19:00,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 03:19:00,360 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-12-14 03:19:00,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:19:00,361 INFO L85 PathProgramCache]: Analyzing trace with hash -723618734, now seen corresponding path program 1 times [2022-12-14 03:19:00,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:19:00,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836510002] [2022-12-14 03:19:00,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:19:00,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:19:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 03:19:00,401 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 03:19:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 03:19:00,446 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 03:19:00,446 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 03:19:00,447 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-12-14 03:19:00,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2022-12-14 03:19:00,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2022-12-14 03:19:00,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2022-12-14 03:19:00,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2022-12-14 03:19:00,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2022-12-14 03:19:00,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2022-12-14 03:19:00,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2022-12-14 03:19:00,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2022-12-14 03:19:00,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2022-12-14 03:19:00,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2022-12-14 03:19:00,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 17 remaining) [2022-12-14 03:19:00,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2022-12-14 03:19:00,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2022-12-14 03:19:00,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2022-12-14 03:19:00,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2022-12-14 03:19:00,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2022-12-14 03:19:00,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 03:19:00,453 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 03:19:00,455 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 03:19:00,455 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-14 03:19:00,477 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 03:19:00,480 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 03:19:00,480 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 189 places, 188 transitions, 400 flow [2022-12-14 03:19:00,481 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 189 places, 188 transitions, 400 flow [2022-12-14 03:19:00,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 189 places, 188 transitions, 400 flow [2022-12-14 03:19:00,515 INFO L130 PetriNetUnfolder]: 10/208 cut-off events. [2022-12-14 03:19:00,515 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 03:19:00,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 208 events. 10/208 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 361 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 217. Up to 6 conditions per place. [2022-12-14 03:19:00,521 INFO L119 LiptonReduction]: Number of co-enabled transitions 7896 [2022-12-14 03:19:03,773 INFO L134 LiptonReduction]: Checked pairs total: 22886 [2022-12-14 03:19:03,773 INFO L136 LiptonReduction]: Total number of compositions: 200 [2022-12-14 03:19:03,774 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 54 transitions, 132 flow [2022-12-14 03:19:03,943 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7457 states, 7279 states have (on average 4.017447451573018) internal successors, (29243), 7456 states have internal predecessors, (29243), 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 03:19:03,944 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 03:19:03,945 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;@6e4402db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 03:19:03,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-12-14 03:19:03,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 7457 states, 7279 states have (on average 4.017447451573018) internal successors, (29243), 7456 states have internal predecessors, (29243), 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 03:19:03,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 03:19:03,963 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:19:03,963 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 03:19:03,963 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-14 03:19:03,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:19:03,963 INFO L85 PathProgramCache]: Analyzing trace with hash 976, now seen corresponding path program 1 times [2022-12-14 03:19:03,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:19:03,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252769722] [2022-12-14 03:19:03,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:19:03,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:19:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:19:03,970 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 03:19:03,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:19:03,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252769722] [2022-12-14 03:19:03,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252769722] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:19:03,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:19:03,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 03:19:03,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231410001] [2022-12-14 03:19:03,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:19:03,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 03:19:03,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:19:03,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 03:19:03,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 03:19:03,987 INFO L87 Difference]: Start difference. First operand has 7457 states, 7279 states have (on average 4.017447451573018) internal successors, (29243), 7456 states have internal predecessors, (29243), 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 03:19:04,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:19:04,061 INFO L93 Difference]: Finished difference Result 4590 states and 16439 transitions. [2022-12-14 03:19:04,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 03:19:04,062 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 03:19:04,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:19:04,103 INFO L225 Difference]: With dead ends: 4590 [2022-12-14 03:19:04,104 INFO L226 Difference]: Without dead ends: 4583 [2022-12-14 03:19:04,104 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 03:19:04,112 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 03:19:04,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 03:19:04,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4583 states. [2022-12-14 03:19:04,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4583 to 4583. [2022-12-14 03:19:04,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4583 states, 4542 states have (on average 3.6129458388375166) internal successors, (16410), 4582 states have internal predecessors, (16410), 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 03:19:04,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 16410 transitions. [2022-12-14 03:19:04,267 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 16410 transitions. Word has length 1 [2022-12-14 03:19:04,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:19:04,267 INFO L495 AbstractCegarLoop]: Abstraction has 4583 states and 16410 transitions. [2022-12-14 03:19:04,267 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 03:19:04,268 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 16410 transitions. [2022-12-14 03:19:04,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 03:19:04,268 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:19:04,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 03:19:04,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 03:19:04,268 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-14 03:19:04,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:19:04,269 INFO L85 PathProgramCache]: Analyzing trace with hash 29874311, now seen corresponding path program 1 times [2022-12-14 03:19:04,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:19:04,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146859432] [2022-12-14 03:19:04,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:19:04,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:19:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:19:04,306 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 03:19:04,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:19:04,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146859432] [2022-12-14 03:19:04,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146859432] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:19:04,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:19:04,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 03:19:04,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493174034] [2022-12-14 03:19:04,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:19:04,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:19:04,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:19:04,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:19:04,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:19:04,308 INFO L87 Difference]: Start difference. First operand 4583 states and 16410 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:19:04,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:19:04,418 INFO L93 Difference]: Finished difference Result 5956 states and 20211 transitions. [2022-12-14 03:19:04,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:19:04,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 03:19:04,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:19:04,444 INFO L225 Difference]: With dead ends: 5956 [2022-12-14 03:19:04,444 INFO L226 Difference]: Without dead ends: 5938 [2022-12-14 03:19:04,444 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 03:19:04,445 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 28 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:19:04,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 21 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 03:19:04,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5938 states. [2022-12-14 03:19:04,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5938 to 4542. [2022-12-14 03:19:04,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4542 states, 4508 states have (on average 3.5281721384205857) internal successors, (15905), 4541 states have internal predecessors, (15905), 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 03:19:04,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4542 states to 4542 states and 15905 transitions. [2022-12-14 03:19:04,651 INFO L78 Accepts]: Start accepts. Automaton has 4542 states and 15905 transitions. Word has length 4 [2022-12-14 03:19:04,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:19:04,651 INFO L495 AbstractCegarLoop]: Abstraction has 4542 states and 15905 transitions. [2022-12-14 03:19:04,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 03:19:04,652 INFO L276 IsEmpty]: Start isEmpty. Operand 4542 states and 15905 transitions. [2022-12-14 03:19:04,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 03:19:04,653 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:19:04,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:19:04,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 03:19:04,654 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-14 03:19:04,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:19:04,654 INFO L85 PathProgramCache]: Analyzing trace with hash -786637686, now seen corresponding path program 1 times [2022-12-14 03:19:04,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:19:04,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016787916] [2022-12-14 03:19:04,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:19:04,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:19:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 03:19:04,702 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 03:19:04,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 03:19:04,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016787916] [2022-12-14 03:19:04,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016787916] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 03:19:04,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 03:19:04,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 03:19:04,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447494246] [2022-12-14 03:19:04,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 03:19:04,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 03:19:04,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 03:19:04,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 03:19:04,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 03:19:04,704 INFO L87 Difference]: Start difference. First operand 4542 states and 15905 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 03:19:04,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 03:19:04,819 INFO L93 Difference]: Finished difference Result 4725 states and 16447 transitions. [2022-12-14 03:19:04,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 03:19:04,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2022-12-14 03:19:04,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 03:19:04,848 INFO L225 Difference]: With dead ends: 4725 [2022-12-14 03:19:04,848 INFO L226 Difference]: Without dead ends: 4682 [2022-12-14 03:19:04,848 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 03:19:04,849 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 19 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 03:19:04,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 21 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 03:19:04,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4682 states. [2022-12-14 03:19:04,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4682 to 4682. [2022-12-14 03:19:04,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4682 states, 4651 states have (on average 3.4973124059342076) internal successors, (16266), 4681 states have internal predecessors, (16266), 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 03:19:04,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4682 states to 4682 states and 16266 transitions. [2022-12-14 03:19:04,989 INFO L78 Accepts]: Start accepts. Automaton has 4682 states and 16266 transitions. Word has length 14 [2022-12-14 03:19:04,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 03:19:04,990 INFO L495 AbstractCegarLoop]: Abstraction has 4682 states and 16266 transitions. [2022-12-14 03:19:04,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 03:19:04,990 INFO L276 IsEmpty]: Start isEmpty. Operand 4682 states and 16266 transitions. [2022-12-14 03:19:04,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 03:19:04,992 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 03:19:04,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 03:19:04,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 03:19:04,992 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-14 03:19:04,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 03:19:04,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1239714021, now seen corresponding path program 1 times [2022-12-14 03:19:04,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 03:19:04,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955959690] [2022-12-14 03:19:04,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 03:19:04,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 03:19:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 03:19:05,015 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 03:19:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 03:19:05,037 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 03:19:05,037 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 03:19:05,037 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (21 of 22 remaining) [2022-12-14 03:19:05,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-12-14 03:19:05,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-12-14 03:19:05,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-12-14 03:19:05,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-12-14 03:19:05,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-12-14 03:19:05,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-12-14 03:19:05,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-12-14 03:19:05,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-12-14 03:19:05,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-12-14 03:19:05,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2022-12-14 03:19:05,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 22 remaining) [2022-12-14 03:19:05,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 22 remaining) [2022-12-14 03:19:05,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-12-14 03:19:05,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-12-14 03:19:05,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-12-14 03:19:05,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-12-14 03:19:05,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-12-14 03:19:05,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-12-14 03:19:05,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-12-14 03:19:05,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-12-14 03:19:05,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-12-14 03:19:05,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 03:19:05,041 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-14 03:19:05,068 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-12-14 03:19:05,068 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 03:19:05,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:19:05 BasicIcfg [2022-12-14 03:19:05,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 03:19:05,105 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 03:19:05,105 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 03:19:05,105 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 03:19:05,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:18:56" (3/4) ... [2022-12-14 03:19:05,108 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 03:19:05,108 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 03:19:05,108 INFO L158 Benchmark]: Toolchain (without parser) took 9522.76ms. Allocated memory was 138.4MB in the beginning and 247.5MB in the end (delta: 109.1MB). Free memory was 99.0MB in the beginning and 100.3MB in the end (delta: -1.3MB). Peak memory consumption was 108.9MB. Max. memory is 16.1GB. [2022-12-14 03:19:05,109 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 03:19:05,109 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.12ms. Allocated memory is still 138.4MB. Free memory was 99.0MB in the beginning and 79.2MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 03:19:05,109 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.92ms. Allocated memory is still 138.4MB. Free memory was 79.2MB in the beginning and 76.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 03:19:05,109 INFO L158 Benchmark]: Boogie Preprocessor took 23.95ms. Allocated memory is still 138.4MB. Free memory was 76.7MB in the beginning and 75.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 03:19:05,109 INFO L158 Benchmark]: RCFGBuilder took 368.54ms. Allocated memory is still 138.4MB. Free memory was 75.3MB in the beginning and 103.5MB in the end (delta: -28.2MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2022-12-14 03:19:05,110 INFO L158 Benchmark]: TraceAbstraction took 8770.58ms. Allocated memory was 138.4MB in the beginning and 247.5MB in the end (delta: 109.1MB). Free memory was 102.8MB in the beginning and 101.0MB in the end (delta: 1.8MB). Peak memory consumption was 134.0MB. Max. memory is 16.1GB. [2022-12-14 03:19:05,110 INFO L158 Benchmark]: Witness Printer took 2.89ms. Allocated memory is still 247.5MB. Free memory was 101.0MB in the beginning and 100.3MB in the end (delta: 674.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 03:19:05,111 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.12ms. Allocated memory is still 138.4MB. Free memory was 99.0MB in the beginning and 79.2MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.92ms. Allocated memory is still 138.4MB. Free memory was 79.2MB in the beginning and 76.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.95ms. Allocated memory is still 138.4MB. Free memory was 76.7MB in the beginning and 75.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 368.54ms. Allocated memory is still 138.4MB. Free memory was 75.3MB in the beginning and 103.5MB in the end (delta: -28.2MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * TraceAbstraction took 8770.58ms. Allocated memory was 138.4MB in the beginning and 247.5MB in the end (delta: 109.1MB). Free memory was 102.8MB in the beginning and 101.0MB in the end (delta: 1.8MB). Peak memory consumption was 134.0MB. Max. memory is 16.1GB. * Witness Printer took 2.89ms. Allocated memory is still 247.5MB. Free memory was 101.0MB in the beginning and 100.3MB in the end (delta: 674.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 138 PlacesBefore, 34 PlacesAfterwards, 138 TransitionsBefore, 30 TransitionsAfterwards, 3398 CoEnabledTransitionPairs, 8 FixpointIterations, 70 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 14 ConcurrentYvCompositions, 4 ChoiceCompositions, 154 TotalNumberOfCompositions, 6827 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4322, independent: 4132, independent conditional: 0, independent unconditional: 4132, dependent: 190, dependent conditional: 0, dependent unconditional: 190, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2643, independent: 2600, independent conditional: 0, independent unconditional: 2600, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2643, independent: 2526, independent conditional: 0, independent unconditional: 2526, dependent: 117, dependent conditional: 0, dependent unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 117, independent: 74, independent conditional: 0, independent unconditional: 74, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 99, independent: 50, independent conditional: 0, independent unconditional: 50, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4322, independent: 1532, independent conditional: 0, independent unconditional: 1532, dependent: 147, dependent conditional: 0, dependent unconditional: 147, unknown: 2643, unknown conditional: 0, unknown unconditional: 2643] , Statistics on independence cache: Total cache size (in pairs): 126, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 189 PlacesBefore, 59 PlacesAfterwards, 188 TransitionsBefore, 54 TransitionsAfterwards, 7896 CoEnabledTransitionPairs, 9 FixpointIterations, 89 TrivialSequentialCompositions, 75 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 23 ConcurrentYvCompositions, 4 ChoiceCompositions, 200 TotalNumberOfCompositions, 22886 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11230, independent: 10814, independent conditional: 0, independent unconditional: 10814, dependent: 416, dependent conditional: 0, dependent unconditional: 416, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6034, independent: 5942, independent conditional: 0, independent unconditional: 5942, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6034, independent: 5782, independent conditional: 0, independent unconditional: 5782, dependent: 252, dependent conditional: 0, dependent unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 252, independent: 160, independent conditional: 0, independent unconditional: 160, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, independent: 76, independent conditional: 0, independent unconditional: 76, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11230, independent: 4872, independent conditional: 0, independent unconditional: 4872, dependent: 324, dependent conditional: 0, dependent unconditional: 324, unknown: 6034, unknown conditional: 0, unknown unconditional: 6034] , Statistics on independence cache: Total cache size (in pairs): 465, Positive cache size: 422, Positive conditional cache size: 0, Positive unconditional cache size: 422, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 694]: Data race detected Data race detected The following path leads to a data race: [L690] 0 volatile int x; [L691] 0 volatile int n; [L692] 0 pthread_mutex_t mut = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L708] 0 pthread_t t1, t2; [L709] 0 x = 0 [L710] 0 n = __VERIFIER_nondet_uint() [L711] EXPR 0 n >= (10/2) [L711] EXPR 0 n >= (10/2) && n <= 10 [L711] EXPR 0 n <= 10 [L711] EXPR 0 n >= (10/2) && n <= 10 [L711] CALL 0 assume_abort_if_not(n >= (10/2) && n <= 10) [L687] COND FALSE 0 !(!cond) [L711] RET 0 assume_abort_if_not(n >= (10/2) && n <= 10) [L712] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, mut={3:0}, n=5, pthread_create(&t1, 0, thr1, 0)=-1, t1={6:0}, t2={5:0}, x=0] [L694] 1 x < n VAL [arg={0:0}, arg={0:0}, mut={3:0}, n=5, x=0] [L713] 0 int i = 0; VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, i=0, mut={3:0}, n=5, t1={6:0}, t2={5:0}, x=0] [L713] 0 i < n [L713] COND TRUE 0 i < n [L714] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, i=0, mut={3:0}, n=5, pthread_create(&t2, 0, thr2, 0)=0, t1={6:0}, t2={5:0}, x=0] [L697] 2 int t; [L698] 2 int k = __VERIFIER_nondet_uint(); [L699] CALL 2 assume_abort_if_not(k >= (10/2) && k <= 10) [L687] COND FALSE 2 !(!cond) [L699] RET 2 assume_abort_if_not(k >= (10/2) && k <= 10) [L701] 2 t = x [L702] 2 k == n [L702] COND TRUE 2 k == n [L703] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, k=5, mut={3:0}, n=5, t=0, x=1, x = t + 1=52] [L694] 1 x < n VAL [arg={0:0}, arg={0:0}, mut={3:0}, n=5, x=1] Now there is a data race on ~x~0 between C: x = t + 1 [703] and C: x < n [694] - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 181 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 12 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=418occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 39 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 228 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 171 IncrementalHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 48 mSDtfsCounter, 171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7457occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 1396 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 03:19:05,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be7e18c-459b-4513-8512-1f8cfda8d8e9/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