./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/fkp2014.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/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_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2014.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/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_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/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 f24d9db33c7d5aecb89ac12017849974773f5d17a3292112bf25190c4dfae9f0 --- 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 14:55:46,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:55:46,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:55:46,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:55:46,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:55:46,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:55:46,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:55:46,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:55:46,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:55:46,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:55:46,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:55:46,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:55:46,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:55:46,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:55:46,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:55:46,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:55:46,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:55:46,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:55:46,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:55:46,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:55:46,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:55:46,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:55:46,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:55:46,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:55:46,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:55:46,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:55:46,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:55:46,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:55:46,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:55:46,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:55:46,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:55:46,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:55:46,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:55:46,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:55:46,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:55:46,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:55:46,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:55:46,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:55:46,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:55:46,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:55:46,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:55:46,057 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 14:55:46,077 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:55:46,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:55:46,078 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:55:46,078 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:55:46,079 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:55:46,079 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:55:46,079 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:55:46,079 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:55:46,080 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:55:46,080 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:55:46,080 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:55:46,080 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:55:46,080 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:55:46,080 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:55:46,080 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:55:46,081 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:55:46,081 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:55:46,081 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:55:46,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:55:46,082 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:55:46,082 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:55:46,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:55:46,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:55:46,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:55:46,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:55:46,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:55:46,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:55:46,083 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 14:55:46,083 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:55:46,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:55:46,084 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:55:46,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:55:46,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:55:46,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:55:46,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:55:46,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:55:46,085 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:55:46,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:55:46,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:55:46,085 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:55:46,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:55:46,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:55:46,086 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:55:46,086 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_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f24d9db33c7d5aecb89ac12017849974773f5d17a3292112bf25190c4dfae9f0 [2022-12-14 14:55:46,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:55:46,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:55:46,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:55:46,280 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:55:46,280 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:55:46,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-lit/fkp2014.i [2022-12-14 14:55:48,874 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:55:49,071 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:55:49,071 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/sv-benchmarks/c/pthread-lit/fkp2014.i [2022-12-14 14:55:49,079 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/bin/utaipan-gh47qXpMRh/data/92d5967b4/121d76d2fd8b4af39e75cfe11be5960d/FLAG47347e588 [2022-12-14 14:55:49,089 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/bin/utaipan-gh47qXpMRh/data/92d5967b4/121d76d2fd8b4af39e75cfe11be5960d [2022-12-14 14:55:49,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:55:49,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:55:49,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:55:49,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:55:49,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:55:49,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:55:49" (1/1) ... [2022-12-14 14:55:49,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d4c528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:49, skipping insertion in model container [2022-12-14 14:55:49,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:55:49" (1/1) ... [2022-12-14 14:55:49,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:55:49,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:55:49,369 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_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/sv-benchmarks/c/pthread-lit/fkp2014.i[30003,30016] [2022-12-14 14:55:49,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:55:49,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:55:49,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:55:49,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:55:49,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:55:49,392 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:55:49,421 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_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/sv-benchmarks/c/pthread-lit/fkp2014.i[30003,30016] [2022-12-14 14:55:49,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:55:49,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:55:49,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:55:49,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:55:49,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:55:49,458 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:55:49,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:49 WrapperNode [2022-12-14 14:55:49,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:55:49,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:55:49,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:55:49,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:55:49,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:49" (1/1) ... [2022-12-14 14:55:49,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:49" (1/1) ... [2022-12-14 14:55:49,495 INFO L138 Inliner]: procedures = 173, calls = 19, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 84 [2022-12-14 14:55:49,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:55:49,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:55:49,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:55:49,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:55:49,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:49" (1/1) ... [2022-12-14 14:55:49,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:49" (1/1) ... [2022-12-14 14:55:49,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:49" (1/1) ... [2022-12-14 14:55:49,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:49" (1/1) ... [2022-12-14 14:55:49,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:49" (1/1) ... [2022-12-14 14:55:49,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:49" (1/1) ... [2022-12-14 14:55:49,514 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:49" (1/1) ... [2022-12-14 14:55:49,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:49" (1/1) ... [2022-12-14 14:55:49,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:55:49,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:55:49,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:55:49,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:55:49,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:49" (1/1) ... [2022-12-14 14:55:49,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:55:49,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:55:49,543 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:55:49,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:55:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:55:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 14:55:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2022-12-14 14:55:49,573 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2022-12-14 14:55:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:55:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:55:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:55:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:55:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 14:55:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:55:49,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:55:49,575 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 14:55:49,661 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:55:49,662 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:55:49,767 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:55:49,808 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:55:49,808 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:55:49,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:55:49 BoogieIcfgContainer [2022-12-14 14:55:49,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:55:49,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:55:49,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:55:49,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:55:49,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:55:49" (1/3) ... [2022-12-14 14:55:49,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39439693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:55:49, skipping insertion in model container [2022-12-14 14:55:49,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:55:49" (2/3) ... [2022-12-14 14:55:49,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39439693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:55:49, skipping insertion in model container [2022-12-14 14:55:49,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:55:49" (3/3) ... [2022-12-14 14:55:49,819 INFO L112 eAbstractionObserver]: Analyzing ICFG fkp2014.i [2022-12-14 14:55:49,827 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 14:55:49,835 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:55:49,836 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-12-14 14:55:49,836 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 14:55:49,874 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 14:55:49,898 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 14:55:49,909 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 84 transitions, 173 flow [2022-12-14 14:55:49,911 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 84 transitions, 173 flow [2022-12-14 14:55:49,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 84 transitions, 173 flow [2022-12-14 14:55:49,952 INFO L130 PetriNetUnfolder]: 4/96 cut-off events. [2022-12-14 14:55:49,953 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 14:55:49,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 96 events. 4/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 47. Up to 4 conditions per place. [2022-12-14 14:55:49,959 INFO L119 LiptonReduction]: Number of co-enabled transitions 1080 [2022-12-14 14:55:51,402 INFO L134 LiptonReduction]: Checked pairs total: 980 [2022-12-14 14:55:51,402 INFO L136 LiptonReduction]: Total number of compositions: 97 [2022-12-14 14:55:51,407 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 14 transitions, 33 flow [2022-12-14 14:55:51,416 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 43 states, 29 states have (on average 2.3793103448275863) internal successors, (69), 42 states have internal predecessors, (69), 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 14:55:51,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:55:51,433 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;@8827bb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:55:51,433 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-12-14 14:55:51,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 29 states have (on average 2.3793103448275863) internal successors, (69), 42 states have internal predecessors, (69), 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 14:55:51,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 14:55:51,438 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:55:51,438 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 14:55:51,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-12-14 14:55:51,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:55:51,442 INFO L85 PathProgramCache]: Analyzing trace with hash 375, now seen corresponding path program 1 times [2022-12-14 14:55:51,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:55:51,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606520263] [2022-12-14 14:55:51,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:55:51,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:55:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:55:51,531 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 14:55:51,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:55:51,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606520263] [2022-12-14 14:55:51,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606520263] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:55:51,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:55:51,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 14:55:51,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664695907] [2022-12-14 14:55:51,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:55:51,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:55:51,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:55:51,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:55:51,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:55:51,554 INFO L87 Difference]: Start difference. First operand has 43 states, 29 states have (on average 2.3793103448275863) internal successors, (69), 42 states have internal predecessors, (69), 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 14:55:51,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:55:51,570 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2022-12-14 14:55:51,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:55:51,572 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 14:55:51,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:55:51,577 INFO L225 Difference]: With dead ends: 12 [2022-12-14 14:55:51,577 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 14:55:51,578 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 14:55:51,580 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:55:51,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:55:51,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 14:55:51,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 14:55:51,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:55:51,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2022-12-14 14:55:51,600 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 1 [2022-12-14 14:55:51,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:55:51,600 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-12-14 14:55:51,600 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 14:55:51,601 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-12-14 14:55:51,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 14:55:51,601 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:55:51,601 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-12-14 14:55:51,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:55:51,601 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-12-14 14:55:51,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:55:51,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1702313234, now seen corresponding path program 1 times [2022-12-14 14:55:51,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:55:51,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091376519] [2022-12-14 14:55:51,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:55:51,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:55:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:55:51,627 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:55:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:55:51,650 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 14:55:51,650 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:55:51,652 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2022-12-14 14:55:51,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-12-14 14:55:51,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-12-14 14:55:51,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-12-14 14:55:51,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-12-14 14:55:51,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-12-14 14:55:51,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-12-14 14:55:51,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-12-14 14:55:51,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-12-14 14:55:51,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-12-14 14:55:51,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-12-14 14:55:51,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-12-14 14:55:51,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-12-14 14:55:51,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-12-14 14:55:51,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:55:51,656 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 14:55:51,657 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 14:55:51,657 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-14 14:55:51,669 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 14:55:51,674 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 14:55:51,674 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 115 transitions, 242 flow [2022-12-14 14:55:51,674 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 115 transitions, 242 flow [2022-12-14 14:55:51,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 115 transitions, 242 flow [2022-12-14 14:55:51,693 INFO L130 PetriNetUnfolder]: 6/144 cut-off events. [2022-12-14 14:55:51,693 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 14:55:51,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 144 events. 6/144 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 244 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 97. Up to 6 conditions per place. [2022-12-14 14:55:51,696 INFO L119 LiptonReduction]: Number of co-enabled transitions 4020 [2022-12-14 14:55:53,036 INFO L134 LiptonReduction]: Checked pairs total: 11988 [2022-12-14 14:55:53,036 INFO L136 LiptonReduction]: Total number of compositions: 132 [2022-12-14 14:55:53,037 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 35 transitions, 82 flow [2022-12-14 14:55:53,087 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1248 states, 1141 states have (on average 2.890446976336547) internal successors, (3298), 1247 states have internal predecessors, (3298), 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 14:55:53,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:55:53,090 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;@8827bb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:55:53,090 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-12-14 14:55:53,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 1248 states, 1141 states have (on average 2.890446976336547) internal successors, (3298), 1247 states have internal predecessors, (3298), 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 14:55:53,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 14:55:53,093 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:55:53,093 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 14:55:53,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2022-12-14 14:55:53,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:55:53,094 INFO L85 PathProgramCache]: Analyzing trace with hash 639, now seen corresponding path program 1 times [2022-12-14 14:55:53,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:55:53,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203085759] [2022-12-14 14:55:53,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:55:53,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:55:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:55:53,106 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 14:55:53,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:55:53,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203085759] [2022-12-14 14:55:53,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203085759] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:55:53,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:55:53,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 14:55:53,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3344661] [2022-12-14 14:55:53,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:55:53,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:55:53,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:55:53,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:55:53,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:55:53,111 INFO L87 Difference]: Start difference. First operand has 1248 states, 1141 states have (on average 2.890446976336547) internal successors, (3298), 1247 states have internal predecessors, (3298), 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 14:55:53,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:55:53,148 INFO L93 Difference]: Finished difference Result 651 states and 1673 transitions. [2022-12-14 14:55:53,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:55:53,149 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 14:55:53,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:55:53,155 INFO L225 Difference]: With dead ends: 651 [2022-12-14 14:55:53,155 INFO L226 Difference]: Without dead ends: 641 [2022-12-14 14:55:53,156 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 14:55:53,156 INFO L413 NwaCegarLoop]: 11 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, 11 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 14:55:53,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:55:53,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-12-14 14:55:53,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2022-12-14 14:55:53,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 622 states have (on average 2.644694533762058) internal successors, (1645), 640 states have internal predecessors, (1645), 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 14:55:53,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1645 transitions. [2022-12-14 14:55:53,185 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1645 transitions. Word has length 1 [2022-12-14 14:55:53,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:55:53,185 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 1645 transitions. [2022-12-14 14:55:53,185 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 14:55:53,185 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1645 transitions. [2022-12-14 14:55:53,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 14:55:53,186 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:55:53,186 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 14:55:53,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:55:53,186 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2022-12-14 14:55:53,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:55:53,186 INFO L85 PathProgramCache]: Analyzing trace with hash 2059571361, now seen corresponding path program 1 times [2022-12-14 14:55:53,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:55:53,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094330518] [2022-12-14 14:55:53,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:55:53,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:55:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:55:53,240 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 14:55:53,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:55:53,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094330518] [2022-12-14 14:55:53,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094330518] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:55:53,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:55:53,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:55:53,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185518444] [2022-12-14 14:55:53,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:55:53,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:55:53,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:55:53,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:55:53,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:55:53,242 INFO L87 Difference]: Start difference. First operand 641 states and 1645 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 14:55:53,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:55:53,279 INFO L93 Difference]: Finished difference Result 602 states and 1468 transitions. [2022-12-14 14:55:53,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:55:53,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-12-14 14:55:53,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:55:53,284 INFO L225 Difference]: With dead ends: 602 [2022-12-14 14:55:53,284 INFO L226 Difference]: Without dead ends: 602 [2022-12-14 14:55:53,284 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 14:55:53,285 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 18 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:55:53,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 18 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:55:53,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-12-14 14:55:53,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 546. [2022-12-14 14:55:53,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 534 states have (on average 2.561797752808989) internal successors, (1368), 545 states have internal predecessors, (1368), 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 14:55:53,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 1368 transitions. [2022-12-14 14:55:53,311 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 1368 transitions. Word has length 6 [2022-12-14 14:55:53,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:55:53,312 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 1368 transitions. [2022-12-14 14:55:53,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 14:55:53,312 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 1368 transitions. [2022-12-14 14:55:53,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 14:55:53,312 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:55:53,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:55:53,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:55:53,313 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2022-12-14 14:55:53,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:55:53,313 INFO L85 PathProgramCache]: Analyzing trace with hash -731829277, now seen corresponding path program 1 times [2022-12-14 14:55:53,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:55:53,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166014976] [2022-12-14 14:55:53,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:55:53,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:55:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:55:53,346 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 14:55:53,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:55:53,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166014976] [2022-12-14 14:55:53,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166014976] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:55:53,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:55:53,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:55:53,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467911495] [2022-12-14 14:55:53,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:55:53,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:55:53,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:55:53,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:55:53,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:55:53,348 INFO L87 Difference]: Start difference. First operand 546 states and 1368 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:55:53,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:55:53,380 INFO L93 Difference]: Finished difference Result 691 states and 1675 transitions. [2022-12-14 14:55:53,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:55:53,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 14:55:53,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:55:53,384 INFO L225 Difference]: With dead ends: 691 [2022-12-14 14:55:53,385 INFO L226 Difference]: Without dead ends: 654 [2022-12-14 14:55:53,385 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 14:55:53,386 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 18 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:55:53,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 25 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:55:53,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2022-12-14 14:55:53,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 532. [2022-12-14 14:55:53,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 523 states have (on average 2.4550669216061185) internal successors, (1284), 531 states have internal predecessors, (1284), 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 14:55:53,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 1284 transitions. [2022-12-14 14:55:53,404 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 1284 transitions. Word has length 8 [2022-12-14 14:55:53,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:55:53,404 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 1284 transitions. [2022-12-14 14:55:53,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:55:53,405 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 1284 transitions. [2022-12-14 14:55:53,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 14:55:53,406 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:55:53,406 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 14:55:53,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:55:53,406 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2022-12-14 14:55:53,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:55:53,406 INFO L85 PathProgramCache]: Analyzing trace with hash 758755309, now seen corresponding path program 1 times [2022-12-14 14:55:53,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:55:53,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036600711] [2022-12-14 14:55:53,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:55:53,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:55:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:55:53,426 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:55:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:55:53,442 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 14:55:53,442 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:55:53,442 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2022-12-14 14:55:53,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2022-12-14 14:55:53,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2022-12-14 14:55:53,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2022-12-14 14:55:53,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2022-12-14 14:55:53,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2022-12-14 14:55:53,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2022-12-14 14:55:53,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2022-12-14 14:55:53,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2022-12-14 14:55:53,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2022-12-14 14:55:53,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2022-12-14 14:55:53,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2022-12-14 14:55:53,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2022-12-14 14:55:53,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2022-12-14 14:55:53,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2022-12-14 14:55:53,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2022-12-14 14:55:53,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2022-12-14 14:55:53,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2022-12-14 14:55:53,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2022-12-14 14:55:53,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2022-12-14 14:55:53,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 14:55:53,446 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-14 14:55:53,446 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 14:55:53,446 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-12-14 14:55:53,460 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 14:55:53,463 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 14:55:53,463 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 146 transitions, 313 flow [2022-12-14 14:55:53,463 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 146 transitions, 313 flow [2022-12-14 14:55:53,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 146 transitions, 313 flow [2022-12-14 14:55:53,495 INFO L130 PetriNetUnfolder]: 8/192 cut-off events. [2022-12-14 14:55:53,495 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-14 14:55:53,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 192 events. 8/192 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 406 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 148. Up to 8 conditions per place. [2022-12-14 14:55:53,502 INFO L119 LiptonReduction]: Number of co-enabled transitions 8820 [2022-12-14 14:55:54,945 INFO L134 LiptonReduction]: Checked pairs total: 25140 [2022-12-14 14:55:54,945 INFO L136 LiptonReduction]: Total number of compositions: 142 [2022-12-14 14:55:54,946 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 52 transitions, 125 flow [2022-12-14 14:55:55,261 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 17515 states, 16775 states have (on average 3.9455737704918032) internal successors, (66187), 17514 states have internal predecessors, (66187), 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 14:55:55,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:55:55,262 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;@8827bb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:55:55,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-12-14 14:55:55,288 INFO L276 IsEmpty]: Start isEmpty. Operand has 17515 states, 16775 states have (on average 3.9455737704918032) internal successors, (66187), 17514 states have internal predecessors, (66187), 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 14:55:55,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 14:55:55,288 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:55:55,288 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 14:55:55,288 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-14 14:55:55,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:55:55,289 INFO L85 PathProgramCache]: Analyzing trace with hash 966, now seen corresponding path program 1 times [2022-12-14 14:55:55,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:55:55,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714388552] [2022-12-14 14:55:55,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:55:55,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:55:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:55:55,296 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 14:55:55,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:55:55,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714388552] [2022-12-14 14:55:55,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714388552] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:55:55,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:55:55,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 14:55:55,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266614319] [2022-12-14 14:55:55,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:55:55,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:55:55,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:55:55,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:55:55,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:55:55,321 INFO L87 Difference]: Start difference. First operand has 17515 states, 16775 states have (on average 3.9455737704918032) internal successors, (66187), 17514 states have internal predecessors, (66187), 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 14:55:55,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:55:55,478 INFO L93 Difference]: Finished difference Result 6550 states and 22689 transitions. [2022-12-14 14:55:55,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:55:55,479 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 14:55:55,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:55:55,518 INFO L225 Difference]: With dead ends: 6550 [2022-12-14 14:55:55,518 INFO L226 Difference]: Without dead ends: 6514 [2022-12-14 14:55:55,518 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 14:55:55,519 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:55:55,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:55:55,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6514 states. [2022-12-14 14:55:55,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6514 to 6514. [2022-12-14 14:55:55,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6514 states, 6451 states have (on average 3.496667183382421) internal successors, (22557), 6513 states have internal predecessors, (22557), 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 14:55:55,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6514 states to 6514 states and 22557 transitions. [2022-12-14 14:55:55,731 INFO L78 Accepts]: Start accepts. Automaton has 6514 states and 22557 transitions. Word has length 1 [2022-12-14 14:55:55,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:55:55,731 INFO L495 AbstractCegarLoop]: Abstraction has 6514 states and 22557 transitions. [2022-12-14 14:55:55,731 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 14:55:55,731 INFO L276 IsEmpty]: Start isEmpty. Operand 6514 states and 22557 transitions. [2022-12-14 14:55:55,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 14:55:55,732 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:55:55,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 14:55:55,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 14:55:55,732 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-14 14:55:55,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:55:55,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1282317435, now seen corresponding path program 1 times [2022-12-14 14:55:55,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:55:55,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519228997] [2022-12-14 14:55:55,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:55:55,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:55:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:55:55,766 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 14:55:55,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:55:55,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519228997] [2022-12-14 14:55:55,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519228997] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:55:55,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:55:55,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:55:55,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688686317] [2022-12-14 14:55:55,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:55:55,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:55:55,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:55:55,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:55:55,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:55:55,768 INFO L87 Difference]: Start difference. First operand 6514 states and 22557 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 14:55:55,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:55:55,880 INFO L93 Difference]: Finished difference Result 6564 states and 21002 transitions. [2022-12-14 14:55:55,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:55:55,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-12-14 14:55:55,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:55:55,933 INFO L225 Difference]: With dead ends: 6564 [2022-12-14 14:55:55,933 INFO L226 Difference]: Without dead ends: 6564 [2022-12-14 14:55:55,933 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 14:55:55,934 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 25 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:55:55,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 27 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:55:55,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6564 states. [2022-12-14 14:55:56,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6564 to 5456. [2022-12-14 14:55:56,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5456 states, 5411 states have (on average 3.3607466272408058) internal successors, (18185), 5455 states have internal predecessors, (18185), 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 14:55:56,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5456 states to 5456 states and 18185 transitions. [2022-12-14 14:55:56,110 INFO L78 Accepts]: Start accepts. Automaton has 5456 states and 18185 transitions. Word has length 6 [2022-12-14 14:55:56,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:55:56,110 INFO L495 AbstractCegarLoop]: Abstraction has 5456 states and 18185 transitions. [2022-12-14 14:55:56,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 14:55:56,110 INFO L276 IsEmpty]: Start isEmpty. Operand 5456 states and 18185 transitions. [2022-12-14 14:55:56,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 14:55:56,111 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:55:56,111 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:55:56,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 14:55:56,111 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-14 14:55:56,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:55:56,112 INFO L85 PathProgramCache]: Analyzing trace with hash 348583111, now seen corresponding path program 1 times [2022-12-14 14:55:56,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:55:56,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756860737] [2022-12-14 14:55:56,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:55:56,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:55:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:55:56,136 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 14:55:56,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:55:56,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756860737] [2022-12-14 14:55:56,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756860737] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:55:56,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:55:56,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:55:56,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198492367] [2022-12-14 14:55:56,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:55:56,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:55:56,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:55:56,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:55:56,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:55:56,138 INFO L87 Difference]: Start difference. First operand 5456 states and 18185 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:55:56,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:55:56,222 INFO L93 Difference]: Finished difference Result 8558 states and 27281 transitions. [2022-12-14 14:55:56,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:55:56,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 14:55:56,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:55:56,270 INFO L225 Difference]: With dead ends: 8558 [2022-12-14 14:55:56,270 INFO L226 Difference]: Without dead ends: 8372 [2022-12-14 14:55:56,271 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 14:55:56,271 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 25 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:55:56,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 36 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:55:56,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8372 states. [2022-12-14 14:55:56,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8372 to 6118. [2022-12-14 14:55:56,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6118 states, 6077 states have (on average 3.2502879710383414) internal successors, (19752), 6117 states have internal predecessors, (19752), 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 14:55:56,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6118 states to 6118 states and 19752 transitions. [2022-12-14 14:55:56,434 INFO L78 Accepts]: Start accepts. Automaton has 6118 states and 19752 transitions. Word has length 8 [2022-12-14 14:55:56,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:55:56,434 INFO L495 AbstractCegarLoop]: Abstraction has 6118 states and 19752 transitions. [2022-12-14 14:55:56,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:55:56,434 INFO L276 IsEmpty]: Start isEmpty. Operand 6118 states and 19752 transitions. [2022-12-14 14:55:56,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 14:55:56,435 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:55:56,435 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:55:56,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 14:55:56,435 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-14 14:55:56,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:55:56,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2052154937, now seen corresponding path program 1 times [2022-12-14 14:55:56,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:55:56,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059461119] [2022-12-14 14:55:56,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:55:56,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:55:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:55:56,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:55:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:55:56,479 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 14:55:56,479 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:55:56,479 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thrErr3ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2022-12-14 14:55:56,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2022-12-14 14:55:56,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 26 remaining) [2022-12-14 14:55:56,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2022-12-14 14:55:56,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2022-12-14 14:55:56,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2022-12-14 14:55:56,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2022-12-14 14:55:56,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2022-12-14 14:55:56,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2022-12-14 14:55:56,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2022-12-14 14:55:56,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2022-12-14 14:55:56,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2022-12-14 14:55:56,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2022-12-14 14:55:56,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2022-12-14 14:55:56,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2022-12-14 14:55:56,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2022-12-14 14:55:56,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2022-12-14 14:55:56,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2022-12-14 14:55:56,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2022-12-14 14:55:56,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2022-12-14 14:55:56,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2022-12-14 14:55:56,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2022-12-14 14:55:56,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2022-12-14 14:55:56,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2022-12-14 14:55:56,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2022-12-14 14:55:56,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2022-12-14 14:55:56,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 14:55:56,482 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-14 14:55:56,485 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2022-12-14 14:55:56,485 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:55:56,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:55:56 BasicIcfg [2022-12-14 14:55:56,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:55:56,504 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:55:56,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:55:56,504 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:55:56,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:55:49" (3/4) ... [2022-12-14 14:55:56,506 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 14:55:56,507 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:55:56,507 INFO L158 Benchmark]: Toolchain (without parser) took 7414.87ms. Allocated memory was 151.0MB in the beginning and 297.8MB in the end (delta: 146.8MB). Free memory was 116.2MB in the beginning and 105.3MB in the end (delta: 10.9MB). Peak memory consumption was 160.5MB. Max. memory is 16.1GB. [2022-12-14 14:55:56,507 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory is still 35.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:55:56,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.02ms. Allocated memory is still 151.0MB. Free memory was 116.2MB in the beginning and 96.0MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 14:55:56,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.88ms. Allocated memory is still 151.0MB. Free memory was 96.0MB in the beginning and 94.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:55:56,508 INFO L158 Benchmark]: Boogie Preprocessor took 22.08ms. Allocated memory is still 151.0MB. Free memory was 94.0MB in the beginning and 92.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:55:56,508 INFO L158 Benchmark]: RCFGBuilder took 290.96ms. Allocated memory is still 151.0MB. Free memory was 92.7MB in the beginning and 77.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 14:55:56,508 INFO L158 Benchmark]: TraceAbstraction took 6691.39ms. Allocated memory was 151.0MB in the beginning and 297.8MB in the end (delta: 146.8MB). Free memory was 76.5MB in the beginning and 105.3MB in the end (delta: -28.7MB). Peak memory consumption was 120.7MB. Max. memory is 16.1GB. [2022-12-14 14:55:56,508 INFO L158 Benchmark]: Witness Printer took 2.59ms. Allocated memory is still 297.8MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:55:56,510 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory is still 35.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.02ms. Allocated memory is still 151.0MB. Free memory was 116.2MB in the beginning and 96.0MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.88ms. Allocated memory is still 151.0MB. Free memory was 96.0MB in the beginning and 94.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.08ms. Allocated memory is still 151.0MB. Free memory was 94.0MB in the beginning and 92.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 290.96ms. Allocated memory is still 151.0MB. Free memory was 92.7MB in the beginning and 77.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6691.39ms. Allocated memory was 151.0MB in the beginning and 297.8MB in the end (delta: 146.8MB). Free memory was 76.5MB in the beginning and 105.3MB in the end (delta: -28.7MB). Peak memory consumption was 120.7MB. Max. memory is 16.1GB. * Witness Printer took 2.59ms. Allocated memory is still 297.8MB. Free memory is still 105.3MB. 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: 1.5s, 84 PlacesBefore, 17 PlacesAfterwards, 84 TransitionsBefore, 14 TransitionsAfterwards, 1080 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 97 TotalNumberOfCompositions, 980 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 980, independent: 980, independent conditional: 0, independent unconditional: 980, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 672, independent: 672, independent conditional: 0, independent unconditional: 672, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 672, independent: 672, independent conditional: 0, independent unconditional: 672, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 980, independent: 308, independent conditional: 0, independent unconditional: 308, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 672, unknown conditional: 0, unknown unconditional: 672] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: 1.4s, 116 PlacesBefore, 40 PlacesAfterwards, 115 TransitionsBefore, 35 TransitionsAfterwards, 4020 CoEnabledTransitionPairs, 10 FixpointIterations, 39 TrivialSequentialCompositions, 80 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 6 ConcurrentYvCompositions, 4 ChoiceCompositions, 132 TotalNumberOfCompositions, 11988 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6990, independent: 6636, independent conditional: 0, independent unconditional: 6636, dependent: 354, dependent conditional: 0, dependent unconditional: 354, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2852, independent: 2783, independent conditional: 0, independent unconditional: 2783, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2852, independent: 2638, independent conditional: 0, independent unconditional: 2638, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 214, independent: 145, independent conditional: 0, independent unconditional: 145, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 127, independent: 65, independent conditional: 0, independent unconditional: 65, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6990, independent: 3853, independent conditional: 0, independent unconditional: 3853, dependent: 285, dependent conditional: 0, dependent unconditional: 285, unknown: 2852, unknown conditional: 0, unknown unconditional: 2852] , Statistics on independence cache: Total cache size (in pairs): 263, Positive cache size: 239, Positive conditional cache size: 0, Positive unconditional cache size: 239, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, 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: 1.5s, 148 PlacesBefore, 56 PlacesAfterwards, 146 TransitionsBefore, 52 TransitionsAfterwards, 8820 CoEnabledTransitionPairs, 9 FixpointIterations, 39 TrivialSequentialCompositions, 87 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 142 TotalNumberOfCompositions, 25140 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13012, independent: 12603, independent conditional: 0, independent unconditional: 12603, dependent: 409, dependent conditional: 0, dependent unconditional: 409, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5818, independent: 5724, independent conditional: 0, independent unconditional: 5724, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5818, independent: 5506, independent conditional: 0, independent unconditional: 5506, dependent: 312, dependent conditional: 0, dependent unconditional: 312, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 312, independent: 218, independent conditional: 0, independent unconditional: 218, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 150, independent: 79, independent conditional: 0, independent unconditional: 79, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13012, independent: 6879, independent conditional: 0, independent unconditional: 6879, dependent: 315, dependent conditional: 0, dependent unconditional: 315, unknown: 5818, unknown conditional: 0, unknown unconditional: 5818] , Statistics on independence cache: Total cache size (in pairs): 551, Positive cache size: 518, Positive conditional cache size: 0, Positive unconditional cache size: 518, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, 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: 711]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int s; [L698] 0 volatile int t; [L716] 0 pthread_t t; [L717] 0 int i, n; [L718] 0 s = 0 [L719] 0 n = __VERIFIER_nondet_int() [L720] CALL 0 assume_abort_if_not(n > 0) [L686] COND FALSE 0 !(!cond) [L720] RET 0 assume_abort_if_not(n > 0) [L721] 0 i = 0 VAL [i=0, n=2, s=0, t={3:0}, t=0] [L721] COND TRUE 0 i < n [L722] FCALL, FORK 0 pthread_create(&t, 0, thr, 0) VAL [i=0, n=2, pthread_create(&t, 0, thr, 0)=-2, s=0, t={3:0}, t=0] [L721] 0 i++ VAL [i=1, n=2, s=0, t={3:0}, t=0] [L721] COND TRUE 0 i < n [L722] FCALL, FORK 0 pthread_create(&t, 0, thr, 0) VAL [i=1, n=2, pthread_create(&t, 0, thr, 0)=-1, s=0, t=0, t={3:0}] [L710] CALL 1 inct() [L701] 1 t++ [L710] RET 1 inct() [L711] 1 s < t VAL [arg={0:0}, arg={0:0}, s=0, t=1] [L710] CALL 2 inct() [L701] 2 t++ [L710] RET 2 inct() [L711] 1 s < t VAL [arg={0:0}, arg={0:0}, s=0, t=2] Now there is a data race on ~t~0 between C: t++ [701] and C: s < t [711] - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 722]: 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: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - 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: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 112 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 1 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 4 procedures, 142 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 41 mSDtfsCounter, 94 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=1248occurred 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: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 178 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 172 locations, 26 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 61 mSDtfsCounter, 123 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=17515occurred 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, 3362 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 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 14:55:56,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f04f0d78-088b-4e7a-a70e-ad6cde028e5b/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