./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 38b53e6a 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_82e66b13-75d5-4573-9c0d-bd77342f61b6/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e66b13-75d5-4573-9c0d-bd77342f61b6/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e66b13-75d5-4573-9c0d-bd77342f61b6/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e66b13-75d5-4573-9c0d-bd77342f61b6/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2014.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e66b13-75d5-4573-9c0d-bd77342f61b6/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e66b13-75d5-4573-9c0d-bd77342f61b6/bin/utaipan-ByfvJB40ur --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-38b53e6 [2022-11-26 00:23:30,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:23:30,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:23:30,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:23:30,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:23:30,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:23:30,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:23:30,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:23:30,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:23:30,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:23:30,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:23:30,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:23:30,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:23:30,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:23:30,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:23:30,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:23:30,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:23:30,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:23:30,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:23:30,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:23:30,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:23:30,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:23:30,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:23:30,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:23:30,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:23:30,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:23:30,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:23:30,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:23:30,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:23:30,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:23:30,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:23:30,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:23:30,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:23:30,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:23:30,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:23:30,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:23:30,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:23:30,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:23:30,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:23:30,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:23:30,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:23:30,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e66b13-75d5-4573-9c0d-bd77342f61b6/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 00:23:30,796 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:23:30,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:23:30,797 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:23:30,797 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:23:30,798 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:23:30,798 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:23:30,798 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:23:30,798 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:23:30,798 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:23:30,799 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:23:30,800 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:23:30,800 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:23:30,800 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:23:30,800 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:23:30,800 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:23:30,801 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:23:30,801 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:23:30,801 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:23:30,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:23:30,802 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:23:30,802 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:23:30,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:23:30,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:23:30,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:23:30,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:23:30,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:23:30,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:23:30,803 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:23:30,803 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:23:30,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:23:30,804 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:23:30,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:23:30,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:23:30,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:23:30,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:23:30,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:23:30,805 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:23:30,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:23:30,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:23:30,805 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:23:30,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:23:30,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:23:30,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:23:30,806 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_82e66b13-75d5-4573-9c0d-bd77342f61b6/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e66b13-75d5-4573-9c0d-bd77342f61b6/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f24d9db33c7d5aecb89ac12017849974773f5d17a3292112bf25190c4dfae9f0 [2022-11-26 00:23:31,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:23:31,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:23:31,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:23:31,111 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:23:31,111 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:23:31,113 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e66b13-75d5-4573-9c0d-bd77342f61b6/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-lit/fkp2014.i [2022-11-26 00:23:34,254 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:23:34,544 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:23:34,558 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e66b13-75d5-4573-9c0d-bd77342f61b6/sv-benchmarks/c/pthread-lit/fkp2014.i [2022-11-26 00:23:34,575 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e66b13-75d5-4573-9c0d-bd77342f61b6/bin/utaipan-ByfvJB40ur/data/cc0acff3b/885a4d500bea4c208b78be3dca0d0feb/FLAG5b189aff3 [2022-11-26 00:23:34,592 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e66b13-75d5-4573-9c0d-bd77342f61b6/bin/utaipan-ByfvJB40ur/data/cc0acff3b/885a4d500bea4c208b78be3dca0d0feb [2022-11-26 00:23:34,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:23:34,597 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:23:34,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:23:34,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:23:34,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:23:34,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:23:34" (1/1) ... [2022-11-26 00:23:34,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29d3d64a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:34, skipping insertion in model container [2022-11-26 00:23:34,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:23:34" (1/1) ... [2022-11-26 00:23:34,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:23:34,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:23:35,057 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_82e66b13-75d5-4573-9c0d-bd77342f61b6/sv-benchmarks/c/pthread-lit/fkp2014.i[30003,30016] [2022-11-26 00:23:35,072 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:23:35,083 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:23:35,084 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:23:35,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:23:35,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:23:35,107 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:23:35,175 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_82e66b13-75d5-4573-9c0d-bd77342f61b6/sv-benchmarks/c/pthread-lit/fkp2014.i[30003,30016] [2022-11-26 00:23:35,181 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:23:35,182 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:23:35,183 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-26 00:23:35,184 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-26 00:23:35,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:23:35,234 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:23:35,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:35 WrapperNode [2022-11-26 00:23:35,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:23:35,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:23:35,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:23:35,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:23:35,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:35" (1/1) ... [2022-11-26 00:23:35,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:35" (1/1) ... [2022-11-26 00:23:35,312 INFO L138 Inliner]: procedures = 173, calls = 19, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 84 [2022-11-26 00:23:35,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:23:35,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:23:35,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:23:35,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:23:35,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:35" (1/1) ... [2022-11-26 00:23:35,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:35" (1/1) ... [2022-11-26 00:23:35,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:35" (1/1) ... [2022-11-26 00:23:35,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:35" (1/1) ... [2022-11-26 00:23:35,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:35" (1/1) ... [2022-11-26 00:23:35,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:35" (1/1) ... [2022-11-26 00:23:35,360 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:35" (1/1) ... [2022-11-26 00:23:35,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:35" (1/1) ... [2022-11-26 00:23:35,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:23:35,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:23:35,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:23:35,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:23:35,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:35" (1/1) ... [2022-11-26 00:23:35,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:23:35,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e66b13-75d5-4573-9c0d-bd77342f61b6/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:23:35,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e66b13-75d5-4573-9c0d-bd77342f61b6/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:23:35,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e66b13-75d5-4573-9c0d-bd77342f61b6/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:23:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:23:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-26 00:23:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2022-11-26 00:23:35,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2022-11-26 00:23:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:23:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:23:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:23:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:23:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-26 00:23:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:23:35,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:23:35,461 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:23:35,627 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:23:35,656 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:23:35,839 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:23:35,885 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:23:35,885 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:23:35,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:23:35 BoogieIcfgContainer [2022-11-26 00:23:35,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:23:35,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:23:35,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:23:35,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:23:35,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:23:34" (1/3) ... [2022-11-26 00:23:35,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43983065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:23:35, skipping insertion in model container [2022-11-26 00:23:35,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:35" (2/3) ... [2022-11-26 00:23:35,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43983065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:23:35, skipping insertion in model container [2022-11-26 00:23:35,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:23:35" (3/3) ... [2022-11-26 00:23:35,907 INFO L112 eAbstractionObserver]: Analyzing ICFG fkp2014.i [2022-11-26 00:23:35,920 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:23:35,931 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:23:35,932 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-26 00:23:35,932 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:23:35,976 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:23:36,009 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:23:36,023 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 84 transitions, 173 flow [2022-11-26 00:23:36,026 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 84 transitions, 173 flow [2022-11-26 00:23:36,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 84 transitions, 173 flow [2022-11-26 00:23:36,105 INFO L130 PetriNetUnfolder]: 4/96 cut-off events. [2022-11-26 00:23:36,109 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:23:36,117 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 90 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. [2022-11-26 00:23:36,120 INFO L119 LiptonReduction]: Number of co-enabled transitions 1080 [2022-11-26 00:23:38,939 INFO L134 LiptonReduction]: Checked pairs total: 908 [2022-11-26 00:23:38,940 INFO L136 LiptonReduction]: Total number of compositions: 97 [2022-11-26 00:23:38,949 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 14 transitions, 33 flow [2022-11-26 00:23:38,963 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) [2022-11-26 00:23:38,979 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:23:38,987 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;@6b5369c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:23:38,987 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-26 00:23:38,989 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) [2022-11-26 00:23:38,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:23:38,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:38,995 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:23:38,995 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)] === [2022-11-26 00:23:39,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:39,001 INFO L85 PathProgramCache]: Analyzing trace with hash 379, now seen corresponding path program 1 times [2022-11-26 00:23:39,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:23:39,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578837601] [2022-11-26 00:23:39,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:23:39,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:23:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:23:39,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:39,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:23:39,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578837601] [2022-11-26 00:23:39,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578837601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:23:39,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:23:39,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:23:39,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047004326] [2022-11-26 00:23:39,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:23:39,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:23:39,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:23:39,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:23:39,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:23:39,160 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) [2022-11-26 00:23:39,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:23:39,183 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2022-11-26 00:23:39,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:23:39,186 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-26 00:23:39,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:23:39,193 INFO L225 Difference]: With dead ends: 12 [2022-11-26 00:23:39,193 INFO L226 Difference]: Without dead ends: 11 [2022-11-26 00:23:39,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:23:39,198 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 [2022-11-26 00:23:39,199 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] [2022-11-26 00:23:39,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-26 00:23:39,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-26 00:23:39,227 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) [2022-11-26 00:23:39,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2022-11-26 00:23:39,229 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 1 [2022-11-26 00:23:39,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:23:39,229 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-11-26 00:23:39,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:39,230 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-11-26 00:23:39,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:23:39,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:39,231 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-26 00:23:39,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:23:39,231 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)] === [2022-11-26 00:23:39,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:39,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1650599127, now seen corresponding path program 1 times [2022-11-26 00:23:39,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:23:39,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084486206] [2022-11-26 00:23:39,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:23:39,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:23:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:23:39,272 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:23:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:23:39,309 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:23:39,309 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:23:39,311 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2022-11-26 00:23:39,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-26 00:23:39,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-11-26 00:23:39,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-11-26 00:23:39,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-26 00:23:39,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-11-26 00:23:39,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-26 00:23:39,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-11-26 00:23:39,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-11-26 00:23:39,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-11-26 00:23:39,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-11-26 00:23:39,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-26 00:23:39,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-26 00:23:39,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-26 00:23:39,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:23:39,326 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 00:23:39,328 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-26 00:23:39,330 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-26 00:23:39,349 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:23:39,360 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:23:39,360 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 115 transitions, 242 flow [2022-11-26 00:23:39,361 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 115 transitions, 242 flow [2022-11-26 00:23:39,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 115 transitions, 242 flow [2022-11-26 00:23:39,423 INFO L130 PetriNetUnfolder]: 6/144 cut-off events. [2022-11-26 00:23:39,424 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-26 00:23:39,427 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. [2022-11-26 00:23:39,430 INFO L119 LiptonReduction]: Number of co-enabled transitions 4020 [2022-11-26 00:23:41,898 INFO L134 LiptonReduction]: Checked pairs total: 12036 [2022-11-26 00:23:41,898 INFO L136 LiptonReduction]: Total number of compositions: 132 [2022-11-26 00:23:41,901 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 35 transitions, 82 flow [2022-11-26 00:23:41,994 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) [2022-11-26 00:23:41,996 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:23:41,997 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;@6b5369c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:23:41,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-26 00:23:42,000 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) [2022-11-26 00:23:42,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:23:42,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:42,001 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:23:42,001 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)] === [2022-11-26 00:23:42,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:42,002 INFO L85 PathProgramCache]: Analyzing trace with hash 640, now seen corresponding path program 1 times [2022-11-26 00:23:42,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:23:42,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039970619] [2022-11-26 00:23:42,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:23:42,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:23:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:23:42,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:42,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:23:42,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039970619] [2022-11-26 00:23:42,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039970619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:23:42,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:23:42,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:23:42,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513418907] [2022-11-26 00:23:42,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:23:42,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:23:42,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:23:42,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:23:42,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:23:42,021 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) [2022-11-26 00:23:42,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:23:42,072 INFO L93 Difference]: Finished difference Result 651 states and 1673 transitions. [2022-11-26 00:23:42,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:23:42,072 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-26 00:23:42,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:23:42,082 INFO L225 Difference]: With dead ends: 651 [2022-11-26 00:23:42,082 INFO L226 Difference]: Without dead ends: 641 [2022-11-26 00:23:42,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:23:42,083 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 [2022-11-26 00:23:42,084 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] [2022-11-26 00:23:42,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-11-26 00:23:42,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2022-11-26 00:23:42,137 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) [2022-11-26 00:23:42,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1645 transitions. [2022-11-26 00:23:42,143 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1645 transitions. Word has length 1 [2022-11-26 00:23:42,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:23:42,144 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 1645 transitions. [2022-11-26 00:23:42,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:42,144 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1645 transitions. [2022-11-26 00:23:42,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:23:42,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:42,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:23:42,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:23:42,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2022-11-26 00:23:42,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:42,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2050341886, now seen corresponding path program 1 times [2022-11-26 00:23:42,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:23:42,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964458696] [2022-11-26 00:23:42,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:23:42,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:23:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:23:42,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:42,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:23:42,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964458696] [2022-11-26 00:23:42,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964458696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:23:42,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:23:42,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:23:42,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165970148] [2022-11-26 00:23:42,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:23:42,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:23:42,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:23:42,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:23:42,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:23:42,242 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) [2022-11-26 00:23:42,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:23:42,313 INFO L93 Difference]: Finished difference Result 602 states and 1468 transitions. [2022-11-26 00:23:42,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:23:42,314 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 [2022-11-26 00:23:42,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:23:42,319 INFO L225 Difference]: With dead ends: 602 [2022-11-26 00:23:42,319 INFO L226 Difference]: Without dead ends: 602 [2022-11-26 00:23:42,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:23:42,321 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:23:42,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 18 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:23:42,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-11-26 00:23:42,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 546. [2022-11-26 00:23:42,349 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) [2022-11-26 00:23:42,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 1368 transitions. [2022-11-26 00:23:42,352 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 1368 transitions. Word has length 6 [2022-11-26 00:23:42,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:23:42,352 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 1368 transitions. [2022-11-26 00:23:42,353 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) [2022-11-26 00:23:42,353 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 1368 transitions. [2022-11-26 00:23:42,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:23:42,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:42,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:23:42,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:23:42,354 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2022-11-26 00:23:42,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:42,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1011420160, now seen corresponding path program 1 times [2022-11-26 00:23:42,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:23:42,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094085212] [2022-11-26 00:23:42,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:23:42,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:23:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:23:42,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:42,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:23:42,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094085212] [2022-11-26 00:23:42,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094085212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:23:42,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:23:42,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:23:42,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675276123] [2022-11-26 00:23:42,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:23:42,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:23:42,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:23:42,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:23:42,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:23:42,441 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) [2022-11-26 00:23:42,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:23:42,502 INFO L93 Difference]: Finished difference Result 691 states and 1675 transitions. [2022-11-26 00:23:42,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:23:42,503 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 [2022-11-26 00:23:42,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:23:42,507 INFO L225 Difference]: With dead ends: 691 [2022-11-26 00:23:42,508 INFO L226 Difference]: Without dead ends: 654 [2022-11-26 00:23:42,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:23:42,509 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 [2022-11-26 00:23:42,511 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] [2022-11-26 00:23:42,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2022-11-26 00:23:42,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 532. [2022-11-26 00:23:42,545 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) [2022-11-26 00:23:42,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 1284 transitions. [2022-11-26 00:23:42,549 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 1284 transitions. Word has length 8 [2022-11-26 00:23:42,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:23:42,549 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 1284 transitions. [2022-11-26 00:23:42,549 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) [2022-11-26 00:23:42,549 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 1284 transitions. [2022-11-26 00:23:42,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:23:42,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:42,553 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-26 00:23:42,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:23:42,553 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)] === [2022-11-26 00:23:42,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:42,554 INFO L85 PathProgramCache]: Analyzing trace with hash -114528631, now seen corresponding path program 1 times [2022-11-26 00:23:42,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:23:42,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173175037] [2022-11-26 00:23:42,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:23:42,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:23:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:23:42,596 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:23:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:23:42,658 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:23:42,659 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:23:42,659 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2022-11-26 00:23:42,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2022-11-26 00:23:42,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2022-11-26 00:23:42,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2022-11-26 00:23:42,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2022-11-26 00:23:42,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2022-11-26 00:23:42,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2022-11-26 00:23:42,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2022-11-26 00:23:42,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2022-11-26 00:23:42,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2022-11-26 00:23:42,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2022-11-26 00:23:42,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2022-11-26 00:23:42,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2022-11-26 00:23:42,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2022-11-26 00:23:42,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2022-11-26 00:23:42,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2022-11-26 00:23:42,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2022-11-26 00:23:42,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2022-11-26 00:23:42,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2022-11-26 00:23:42,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2022-11-26 00:23:42,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:23:42,663 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-26 00:23:42,664 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-26 00:23:42,664 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-26 00:23:42,689 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:23:42,691 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:23:42,692 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 146 transitions, 313 flow [2022-11-26 00:23:42,692 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 146 transitions, 313 flow [2022-11-26 00:23:42,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 146 transitions, 313 flow [2022-11-26 00:23:42,736 INFO L130 PetriNetUnfolder]: 8/192 cut-off events. [2022-11-26 00:23:42,736 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-26 00:23:42,742 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 413 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. [2022-11-26 00:23:42,749 INFO L119 LiptonReduction]: Number of co-enabled transitions 8820 [2022-11-26 00:23:45,425 INFO L134 LiptonReduction]: Checked pairs total: 28316 [2022-11-26 00:23:45,425 INFO L136 LiptonReduction]: Total number of compositions: 157 [2022-11-26 00:23:45,428 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 50 transitions, 121 flow [2022-11-26 00:23:46,141 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 17515 states, 16772 states have (on average 3.801872167898879) internal successors, (63765), 17514 states have internal predecessors, (63765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:46,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:23:46,144 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;@6b5369c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:23:46,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-26 00:23:46,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 17515 states, 16772 states have (on average 3.801872167898879) internal successors, (63765), 17514 states have internal predecessors, (63765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:46,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:23:46,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:46,184 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:23:46,184 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)] === [2022-11-26 00:23:46,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:46,185 INFO L85 PathProgramCache]: Analyzing trace with hash 966, now seen corresponding path program 1 times [2022-11-26 00:23:46,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:23:46,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861899918] [2022-11-26 00:23:46,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:23:46,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:23:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:23:46,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:46,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:23:46,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861899918] [2022-11-26 00:23:46,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861899918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:23:46,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:23:46,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:23:46,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387089255] [2022-11-26 00:23:46,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:23:46,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:23:46,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:23:46,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:23:46,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:23:46,250 INFO L87 Difference]: Start difference. First operand has 17515 states, 16772 states have (on average 3.801872167898879) internal successors, (63765), 17514 states have internal predecessors, (63765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:46,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:23:46,496 INFO L93 Difference]: Finished difference Result 6550 states and 22689 transitions. [2022-11-26 00:23:46,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:23:46,496 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-26 00:23:46,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:23:46,571 INFO L225 Difference]: With dead ends: 6550 [2022-11-26 00:23:46,571 INFO L226 Difference]: Without dead ends: 6514 [2022-11-26 00:23:46,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:23:46,573 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 [2022-11-26 00:23:46,573 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] [2022-11-26 00:23:46,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6514 states. [2022-11-26 00:23:46,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6514 to 6514. [2022-11-26 00:23:46,865 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) [2022-11-26 00:23:46,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6514 states to 6514 states and 22557 transitions. [2022-11-26 00:23:46,911 INFO L78 Accepts]: Start accepts. Automaton has 6514 states and 22557 transitions. Word has length 1 [2022-11-26 00:23:46,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:23:46,912 INFO L495 AbstractCegarLoop]: Abstraction has 6514 states and 22557 transitions. [2022-11-26 00:23:46,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:46,912 INFO L276 IsEmpty]: Start isEmpty. Operand 6514 states and 22557 transitions. [2022-11-26 00:23:46,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:23:46,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:46,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:23:46,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:23:46,913 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:23:46,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:46,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1215822962, now seen corresponding path program 1 times [2022-11-26 00:23:46,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:23:46,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925540110] [2022-11-26 00:23:46,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:23:46,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:23:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:23:46,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:46,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:23:46,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925540110] [2022-11-26 00:23:46,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925540110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:23:46,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:23:46,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:23:46,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176075593] [2022-11-26 00:23:46,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:23:46,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:23:46,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:23:46,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:23:46,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:23:46,967 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) [2022-11-26 00:23:47,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:23:47,167 INFO L93 Difference]: Finished difference Result 6564 states and 21002 transitions. [2022-11-26 00:23:47,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:23:47,167 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 [2022-11-26 00:23:47,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:23:47,214 INFO L225 Difference]: With dead ends: 6564 [2022-11-26 00:23:47,215 INFO L226 Difference]: Without dead ends: 6564 [2022-11-26 00:23:47,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:23:47,216 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 [2022-11-26 00:23:47,216 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] [2022-11-26 00:23:47,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6564 states. [2022-11-26 00:23:47,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6564 to 5456. [2022-11-26 00:23:47,484 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) [2022-11-26 00:23:47,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5456 states to 5456 states and 18185 transitions. [2022-11-26 00:23:47,513 INFO L78 Accepts]: Start accepts. Automaton has 5456 states and 18185 transitions. Word has length 6 [2022-11-26 00:23:47,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:23:47,513 INFO L495 AbstractCegarLoop]: Abstraction has 5456 states and 18185 transitions. [2022-11-26 00:23:47,513 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) [2022-11-26 00:23:47,514 INFO L276 IsEmpty]: Start isEmpty. Operand 5456 states and 18185 transitions. [2022-11-26 00:23:47,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:23:47,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:47,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:23:47,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:23:47,519 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:23:47,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:47,521 INFO L85 PathProgramCache]: Analyzing trace with hash -174737776, now seen corresponding path program 1 times [2022-11-26 00:23:47,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:23:47,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294365897] [2022-11-26 00:23:47,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:23:47,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:23:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:23:47,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:47,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:23:47,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294365897] [2022-11-26 00:23:47,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294365897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:23:47,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:23:47,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:23:47,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753974637] [2022-11-26 00:23:47,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:23:47,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:23:47,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:23:47,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:23:47,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:23:47,550 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) [2022-11-26 00:23:47,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:23:47,754 INFO L93 Difference]: Finished difference Result 8558 states and 27281 transitions. [2022-11-26 00:23:47,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:23:47,755 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 [2022-11-26 00:23:47,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:23:47,821 INFO L225 Difference]: With dead ends: 8558 [2022-11-26 00:23:47,821 INFO L226 Difference]: Without dead ends: 8372 [2022-11-26 00:23:47,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:23:47,824 INFO L413 NwaCegarLoop]: 28 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, 38 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:23:47,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 38 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:23:47,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8372 states. [2022-11-26 00:23:48,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8372 to 6118. [2022-11-26 00:23:48,214 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) [2022-11-26 00:23:48,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6118 states to 6118 states and 19752 transitions. [2022-11-26 00:23:48,246 INFO L78 Accepts]: Start accepts. Automaton has 6118 states and 19752 transitions. Word has length 8 [2022-11-26 00:23:48,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:23:48,246 INFO L495 AbstractCegarLoop]: Abstraction has 6118 states and 19752 transitions. [2022-11-26 00:23:48,246 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) [2022-11-26 00:23:48,246 INFO L276 IsEmpty]: Start isEmpty. Operand 6118 states and 19752 transitions. [2022-11-26 00:23:48,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 00:23:48,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:48,254 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:23:48,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:23:48,255 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thrErr0ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-26 00:23:48,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:48,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1487781905, now seen corresponding path program 1 times [2022-11-26 00:23:48,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:23:48,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599304005] [2022-11-26 00:23:48,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:23:48,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:23:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:23:48,285 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:23:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:23:48,313 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:23:48,313 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:23:48,314 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thrErr3ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2022-11-26 00:23:48,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2022-11-26 00:23:48,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 26 remaining) [2022-11-26 00:23:48,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2022-11-26 00:23:48,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2022-11-26 00:23:48,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2022-11-26 00:23:48,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2022-11-26 00:23:48,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2022-11-26 00:23:48,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2022-11-26 00:23:48,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2022-11-26 00:23:48,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2022-11-26 00:23:48,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2022-11-26 00:23:48,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2022-11-26 00:23:48,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2022-11-26 00:23:48,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2022-11-26 00:23:48,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2022-11-26 00:23:48,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2022-11-26 00:23:48,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2022-11-26 00:23:48,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2022-11-26 00:23:48,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2022-11-26 00:23:48,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2022-11-26 00:23:48,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2022-11-26 00:23:48,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2022-11-26 00:23:48,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2022-11-26 00:23:48,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2022-11-26 00:23:48,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2022-11-26 00:23:48,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:23:48,323 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-26 00:23:48,328 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2022-11-26 00:23:48,328 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:23:48,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:23:48 BasicIcfg [2022-11-26 00:23:48,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:23:48,384 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:23:48,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:23:48,384 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:23:48,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:23:35" (3/4) ... [2022-11-26 00:23:48,388 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:23:48,388 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:23:48,389 INFO L158 Benchmark]: Toolchain (without parser) took 13792.12ms. Allocated memory was 138.4MB in the beginning and 408.9MB in the end (delta: 270.5MB). Free memory was 106.7MB in the beginning and 207.9MB in the end (delta: -101.3MB). Peak memory consumption was 169.7MB. Max. memory is 16.1GB. [2022-11-26 00:23:48,389 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 138.4MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:23:48,390 INFO L158 Benchmark]: CACSL2BoogieTranslator took 634.54ms. Allocated memory is still 138.4MB. Free memory was 106.2MB in the beginning and 86.4MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 00:23:48,391 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.44ms. Allocated memory is still 138.4MB. Free memory was 86.4MB in the beginning and 84.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:23:48,391 INFO L158 Benchmark]: Boogie Preprocessor took 52.90ms. Allocated memory is still 138.4MB. Free memory was 84.2MB in the beginning and 83.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:23:48,391 INFO L158 Benchmark]: RCFGBuilder took 521.16ms. Allocated memory is still 138.4MB. Free memory was 83.1MB in the beginning and 67.6MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 00:23:48,392 INFO L158 Benchmark]: TraceAbstraction took 12483.97ms. Allocated memory was 138.4MB in the beginning and 408.9MB in the end (delta: 270.5MB). Free memory was 66.8MB in the beginning and 207.9MB in the end (delta: -141.1MB). Peak memory consumption was 129.9MB. Max. memory is 16.1GB. [2022-11-26 00:23:48,392 INFO L158 Benchmark]: Witness Printer took 4.22ms. Allocated memory is still 408.9MB. Free memory is still 207.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:23:48,394 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 138.4MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 634.54ms. Allocated memory is still 138.4MB. Free memory was 106.2MB in the beginning and 86.4MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.44ms. Allocated memory is still 138.4MB. Free memory was 86.4MB in the beginning and 84.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.90ms. Allocated memory is still 138.4MB. Free memory was 84.2MB in the beginning and 83.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 521.16ms. Allocated memory is still 138.4MB. Free memory was 83.1MB in the beginning and 67.6MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 12483.97ms. Allocated memory was 138.4MB in the beginning and 408.9MB in the end (delta: 270.5MB). Free memory was 66.8MB in the beginning and 207.9MB in the end (delta: -141.1MB). Peak memory consumption was 129.9MB. Max. memory is 16.1GB. * Witness Printer took 4.22ms. Allocated memory is still 408.9MB. Free memory is still 207.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 84 PlacesBefore, 17 PlacesAfterwards, 84 TransitionsBefore, 14 TransitionsAfterwards, 1080 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 97 TotalNumberOfCompositions, 908 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 908, independent: 908, independent conditional: 0, independent unconditional: 908, 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: 664, independent: 664, independent conditional: 0, independent unconditional: 664, 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: 664, independent: 664, independent conditional: 0, independent unconditional: 664, 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: 908, independent: 244, independent conditional: 0, independent unconditional: 244, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 664, unknown conditional: 0, unknown unconditional: 664] , 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: 2.5s, 116 PlacesBefore, 40 PlacesAfterwards, 115 TransitionsBefore, 35 TransitionsAfterwards, 4020 CoEnabledTransitionPairs, 10 FixpointIterations, 39 TrivialSequentialCompositions, 80 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 6 ConcurrentYvCompositions, 4 ChoiceCompositions, 132 TotalNumberOfCompositions, 12036 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6981, independent: 6621, independent conditional: 0, independent unconditional: 6621, dependent: 360, dependent conditional: 0, dependent unconditional: 360, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2866, independent: 2793, independent conditional: 0, independent unconditional: 2793, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2866, independent: 2663, independent conditional: 0, independent unconditional: 2663, dependent: 203, dependent conditional: 0, dependent unconditional: 203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 203, independent: 130, independent conditional: 0, independent unconditional: 130, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 233, independent: 112, independent conditional: 0, independent unconditional: 112, dependent: 121, dependent conditional: 0, dependent unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6981, independent: 3828, independent conditional: 0, independent unconditional: 3828, dependent: 287, dependent conditional: 0, dependent unconditional: 287, unknown: 2866, unknown conditional: 0, unknown unconditional: 2866] , Statistics on independence cache: Total cache size (in pairs): 282, Positive cache size: 258, Positive conditional cache size: 0, Positive unconditional cache size: 258, 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: 2.7s, 148 PlacesBefore, 56 PlacesAfterwards, 146 TransitionsBefore, 50 TransitionsAfterwards, 8820 CoEnabledTransitionPairs, 10 FixpointIterations, 38 TrivialSequentialCompositions, 100 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 157 TotalNumberOfCompositions, 28316 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14421, independent: 13922, independent conditional: 0, independent unconditional: 13922, dependent: 499, dependent conditional: 0, dependent unconditional: 499, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6142, independent: 6037, independent conditional: 0, independent unconditional: 6037, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6142, independent: 5698, independent conditional: 0, independent unconditional: 5698, dependent: 444, dependent conditional: 0, dependent unconditional: 444, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 444, independent: 339, independent conditional: 0, independent unconditional: 339, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 469, independent: 322, independent conditional: 0, independent unconditional: 322, dependent: 147, dependent conditional: 0, dependent unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 14421, independent: 7885, independent conditional: 0, independent unconditional: 7885, dependent: 394, dependent conditional: 0, dependent unconditional: 394, unknown: 6142, unknown conditional: 0, unknown unconditional: 6142] , Statistics on independence cache: Total cache size (in pairs): 561, Positive cache size: 525, Positive conditional cache size: 0, Positive unconditional cache size: 525, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, 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)=-1, s=0, t=0, t={3:0}] [L721] 0 i++ VAL [i=1, n=2, s=0, t={3:0}, t=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] [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)=0, s=0, t={3:0}, 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: 3.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, 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: 3.3s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, 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: 5.6s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 82 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, 63 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: 1.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 3362 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s 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! [2022-11-26 00:23:48,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82e66b13-75d5-4573-9c0d-bd77342f61b6/bin/utaipan-ByfvJB40ur/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