./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_8015911d-962a-41b8-92a4-8deadc8fd82e/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8015911d-962a-41b8-92a4-8deadc8fd82e/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8015911d-962a-41b8-92a4-8deadc8fd82e/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8015911d-962a-41b8-92a4-8deadc8fd82e/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8015911d-962a-41b8-92a4-8deadc8fd82e/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8015911d-962a-41b8-92a4-8deadc8fd82e/bin/utaipan-Q6hlc19bkW --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 37f99419c791b8329e91533415d896c367c9197a331e0ac4d97f5b27dc6c2be9 --- 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-4e7fbc6 [2022-11-23 15:52:52,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:52:52,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:52:52,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:52:52,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:52:52,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:52:52,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:52:52,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:52:52,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:52:52,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:52:52,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:52:52,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:52:52,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:52:52,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:52:52,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:52:52,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:52:52,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:52:52,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:52:52,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:52:52,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:52:52,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:52:52,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:52:52,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:52:52,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:52:52,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:52:52,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:52:52,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:52:52,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:52:52,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:52:52,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:52:52,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:52:52,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:52:52,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:52:52,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:52:52,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:52:52,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:52:52,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:52:52,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:52:52,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:52:52,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:52:52,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:52:52,613 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8015911d-962a-41b8-92a4-8deadc8fd82e/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 15:52:52,659 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:52:52,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:52:52,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:52:52,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:52:52,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:52:52,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:52:52,662 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:52:52,662 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:52:52,662 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:52:52,662 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:52:52,663 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:52:52,664 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:52:52,664 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:52:52,664 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:52:52,664 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:52:52,665 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:52:52,665 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:52:52,665 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:52:52,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:52:52,666 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:52:52,666 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:52:52,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:52:52,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:52:52,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:52:52,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:52:52,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:52:52,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:52:52,668 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 15:52:52,668 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:52:52,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:52:52,669 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:52:52,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:52:52,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:52:52,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:52:52,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:52:52,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:52:52,671 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:52:52,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:52:52,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:52:52,672 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:52:52,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:52:52,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:52:52,672 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:52:52,672 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_8015911d-962a-41b8-92a4-8deadc8fd82e/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8015911d-962a-41b8-92a4-8deadc8fd82e/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37f99419c791b8329e91533415d896c367c9197a331e0ac4d97f5b27dc6c2be9 [2022-11-23 15:52:53,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:52:53,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:52:53,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:52:53,134 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:52:53,134 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:52:53,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8015911d-962a-41b8-92a4-8deadc8fd82e/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i [2022-11-23 15:52:56,506 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:52:56,792 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:52:56,793 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8015911d-962a-41b8-92a4-8deadc8fd82e/sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i [2022-11-23 15:52:56,806 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8015911d-962a-41b8-92a4-8deadc8fd82e/bin/utaipan-Q6hlc19bkW/data/5b76b7759/89f39a04723f474ba981571fcef43e66/FLAG0d9984c25 [2022-11-23 15:52:56,823 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8015911d-962a-41b8-92a4-8deadc8fd82e/bin/utaipan-Q6hlc19bkW/data/5b76b7759/89f39a04723f474ba981571fcef43e66 [2022-11-23 15:52:56,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:52:56,827 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:52:56,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:52:56,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:52:56,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:52:56,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:52:56" (1/1) ... [2022-11-23 15:52:56,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b980a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:56, skipping insertion in model container [2022-11-23 15:52:56,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:52:56" (1/1) ... [2022-11-23 15:52:56,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:52:56,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:52:57,445 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_8015911d-962a-41b8-92a4-8deadc8fd82e/sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i[30003,30016] [2022-11-23 15:52:57,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:52:57,484 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:52:57,534 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_8015911d-962a-41b8-92a4-8deadc8fd82e/sv-benchmarks/c/pthread-lit/fkp2013_variant-2.i[30003,30016] [2022-11-23 15:52:57,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:52:57,600 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:52:57,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:57 WrapperNode [2022-11-23 15:52:57,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:52:57,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:52:57,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:52:57,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:52:57,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:57" (1/1) ... [2022-11-23 15:52:57,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:57" (1/1) ... [2022-11-23 15:52:57,684 INFO L138 Inliner]: procedures = 172, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 80 [2022-11-23 15:52:57,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:52:57,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:52:57,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:52:57,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:52:57,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:57" (1/1) ... [2022-11-23 15:52:57,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:57" (1/1) ... [2022-11-23 15:52:57,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:57" (1/1) ... [2022-11-23 15:52:57,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:57" (1/1) ... [2022-11-23 15:52:57,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:57" (1/1) ... [2022-11-23 15:52:57,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:57" (1/1) ... [2022-11-23 15:52:57,731 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:57" (1/1) ... [2022-11-23 15:52:57,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:57" (1/1) ... [2022-11-23 15:52:57,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:52:57,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:52:57,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:52:57,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:52:57,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:57" (1/1) ... [2022-11-23 15:52:57,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:52:57,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8015911d-962a-41b8-92a4-8deadc8fd82e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:52:57,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8015911d-962a-41b8-92a4-8deadc8fd82e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:52:57,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8015911d-962a-41b8-92a4-8deadc8fd82e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:52:57,839 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-23 15:52:57,839 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-23 15:52:57,839 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-23 15:52:57,840 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-23 15:52:57,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:52:57,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:52:57,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:52:57,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:52:57,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:52:57,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:52:57,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:52:57,843 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 15:52:58,030 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:52:58,033 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:52:58,276 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:52:58,285 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:52:58,285 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 15:52:58,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:58 BoogieIcfgContainer [2022-11-23 15:52:58,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:52:58,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:52:58,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:52:58,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:52:58,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:52:56" (1/3) ... [2022-11-23 15:52:58,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225584c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:52:58, skipping insertion in model container [2022-11-23 15:52:58,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:52:57" (2/3) ... [2022-11-23 15:52:58,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225584c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:52:58, skipping insertion in model container [2022-11-23 15:52:58,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:58" (3/3) ... [2022-11-23 15:52:58,299 INFO L112 eAbstractionObserver]: Analyzing ICFG fkp2013_variant-2.i [2022-11-23 15:52:58,309 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 15:52:58,321 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:52:58,321 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-23 15:52:58,322 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 15:52:58,413 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 15:52:58,455 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 15:52:58,474 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 109 transitions, 228 flow [2022-11-23 15:52:58,478 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 109 transitions, 228 flow [2022-11-23 15:52:58,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 109 transitions, 228 flow [2022-11-23 15:52:58,592 INFO L130 PetriNetUnfolder]: 4/125 cut-off events. [2022-11-23 15:52:58,593 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 15:52:58,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 125 events. 4/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 164 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 89. Up to 4 conditions per place. [2022-11-23 15:52:58,604 INFO L119 LiptonReduction]: Number of co-enabled transitions 2120 [2022-11-23 15:53:03,465 INFO L134 LiptonReduction]: Checked pairs total: 4370 [2022-11-23 15:53:03,465 INFO L136 LiptonReduction]: Total number of compositions: 117 [2022-11-23 15:53:03,475 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 25 transitions, 60 flow [2022-11-23 15:53:03,523 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 291 states, 255 states have (on average 2.9098039215686273) internal successors, (742), 290 states have internal predecessors, (742), 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) [2022-11-23 15:53:03,543 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:53:03,550 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;@1a141424, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:53:03,550 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-23 15:53:03,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 291 states, 255 states have (on average 2.9098039215686273) internal successors, (742), 290 states have internal predecessors, (742), 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) [2022-11-23 15:53:03,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-23 15:53:03,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:53:03,560 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-23 15:53:03,561 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-23 15:53:03,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:53:03,566 INFO L85 PathProgramCache]: Analyzing trace with hash 415, now seen corresponding path program 1 times [2022-11-23 15:53:03,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:53:03,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907063551] [2022-11-23 15:53:03,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:53:03,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:53:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:53:03,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:53:03,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:53:03,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907063551] [2022-11-23 15:53:03,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907063551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:53:03,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:53:03,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 15:53:03,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010574086] [2022-11-23 15:53:03,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:53:03,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:53:03,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:53:03,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:53:03,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:53:03,748 INFO L87 Difference]: Start difference. First operand has 291 states, 255 states have (on average 2.9098039215686273) internal successors, (742), 290 states have internal predecessors, (742), 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) [2022-11-23 15:53:03,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:53:03,835 INFO L93 Difference]: Finished difference Result 175 states and 407 transitions. [2022-11-23 15:53:03,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:53:03,839 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 [2022-11-23 15:53:03,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:53:03,851 INFO L225 Difference]: With dead ends: 175 [2022-11-23 15:53:03,851 INFO L226 Difference]: Without dead ends: 173 [2022-11-23 15:53:03,852 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 [2022-11-23 15:53:03,856 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:53:03,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:53:03,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-11-23 15:53:03,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-11-23 15:53:03,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 165 states have (on average 2.4363636363636365) internal successors, (402), 172 states have internal predecessors, (402), 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) [2022-11-23 15:53:03,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 402 transitions. [2022-11-23 15:53:03,915 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 402 transitions. Word has length 1 [2022-11-23 15:53:03,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:53:03,915 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 402 transitions. [2022-11-23 15:53:03,916 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) [2022-11-23 15:53:03,916 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 402 transitions. [2022-11-23 15:53:03,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 15:53:03,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:53:03,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 15:53:03,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:53:03,918 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-23 15:53:03,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:53:03,919 INFO L85 PathProgramCache]: Analyzing trace with hash 12720016, now seen corresponding path program 1 times [2022-11-23 15:53:03,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:53:03,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406405974] [2022-11-23 15:53:03,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:53:03,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:53:03,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:53:04,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:53:04,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:53:04,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406405974] [2022-11-23 15:53:04,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406405974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:53:04,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:53:04,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:53:04,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736721039] [2022-11-23 15:53:04,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:53:04,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:53:04,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:53:04,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:53:04,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:53:04,027 INFO L87 Difference]: Start difference. First operand 173 states and 402 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:53:04,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:53:04,095 INFO L93 Difference]: Finished difference Result 208 states and 469 transitions. [2022-11-23 15:53:04,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:53:04,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-23 15:53:04,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:53:04,099 INFO L225 Difference]: With dead ends: 208 [2022-11-23 15:53:04,099 INFO L226 Difference]: Without dead ends: 204 [2022-11-23 15:53:04,100 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 [2022-11-23 15:53:04,101 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 11 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:53:04,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 8 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:53:04,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-11-23 15:53:04,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 170. [2022-11-23 15:53:04,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 163 states have (on average 2.4171779141104293) internal successors, (394), 169 states have internal predecessors, (394), 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) [2022-11-23 15:53:04,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 394 transitions. [2022-11-23 15:53:04,122 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 394 transitions. Word has length 4 [2022-11-23 15:53:04,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:53:04,122 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 394 transitions. [2022-11-23 15:53:04,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:53:04,123 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 394 transitions. [2022-11-23 15:53:04,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 15:53:04,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:53:04,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:53:04,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:53:04,125 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-23 15:53:04,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:53:04,126 INFO L85 PathProgramCache]: Analyzing trace with hash -2021282802, now seen corresponding path program 1 times [2022-11-23 15:53:04,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:53:04,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825636628] [2022-11-23 15:53:04,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:53:04,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:53:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:53:04,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:53:04,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:53:04,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825636628] [2022-11-23 15:53:04,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825636628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:53:04,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:53:04,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:53:04,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548769410] [2022-11-23 15:53:04,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:53:04,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:53:04,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:53:04,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:53:04,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:53:04,238 INFO L87 Difference]: Start difference. First operand 170 states and 394 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-23 15:53:04,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:53:04,296 INFO L93 Difference]: Finished difference Result 164 states and 369 transitions. [2022-11-23 15:53:04,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:53:04,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-11-23 15:53:04,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:53:04,303 INFO L225 Difference]: With dead ends: 164 [2022-11-23 15:53:04,303 INFO L226 Difference]: Without dead ends: 158 [2022-11-23 15:53:04,303 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 [2022-11-23 15:53:04,305 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:53:04,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:53:04,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-11-23 15:53:04,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2022-11-23 15:53:04,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 153 states have (on average 2.30718954248366) internal successors, (353), 157 states have internal predecessors, (353), 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) [2022-11-23 15:53:04,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 353 transitions. [2022-11-23 15:53:04,332 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 353 transitions. Word has length 9 [2022-11-23 15:53:04,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:53:04,332 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 353 transitions. [2022-11-23 15:53:04,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-23 15:53:04,333 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 353 transitions. [2022-11-23 15:53:04,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 15:53:04,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:53:04,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:53:04,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:53:04,335 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-23 15:53:04,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:53:04,339 INFO L85 PathProgramCache]: Analyzing trace with hash 711427540, now seen corresponding path program 1 times [2022-11-23 15:53:04,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:53:04,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166752909] [2022-11-23 15:53:04,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:53:04,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:53:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:53:04,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:53:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:53:04,477 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:53:04,478 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:53:04,479 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2022-11-23 15:53:04,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-23 15:53:04,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-11-23 15:53:04,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-11-23 15:53:04,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-23 15:53:04,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-11-23 15:53:04,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-23 15:53:04,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-11-23 15:53:04,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-11-23 15:53:04,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 14 remaining) [2022-11-23 15:53:04,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 14 remaining) [2022-11-23 15:53:04,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-23 15:53:04,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-23 15:53:04,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-23 15:53:04,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:53:04,489 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-23 15:53:04,497 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 15:53:04,497 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:53:04,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:53:04 BasicIcfg [2022-11-23 15:53:04,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:53:04,535 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:53:04,535 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:53:04,536 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:53:04,536 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:52:58" (3/4) ... [2022-11-23 15:53:04,540 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:53:04,540 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:53:04,541 INFO L158 Benchmark]: Toolchain (without parser) took 7713.49ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 121.6MB in the beginning and 126.0MB in the end (delta: -4.3MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2022-11-23 15:53:04,541 INFO L158 Benchmark]: CDTParser took 0.89ms. Allocated memory is still 115.3MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:53:04,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 772.55ms. Allocated memory is still 163.6MB. Free memory was 120.9MB in the beginning and 121.6MB in the end (delta: -710.7kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:53:04,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.61ms. Allocated memory is still 163.6MB. Free memory was 121.6MB in the beginning and 119.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:53:04,543 INFO L158 Benchmark]: Boogie Preprocessor took 61.72ms. Allocated memory is still 163.6MB. Free memory was 119.5MB in the beginning and 117.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:53:04,543 INFO L158 Benchmark]: RCFGBuilder took 540.55ms. Allocated memory is still 163.6MB. Free memory was 117.9MB in the beginning and 103.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 15:53:04,544 INFO L158 Benchmark]: TraceAbstraction took 6243.45ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 102.8MB in the beginning and 127.0MB in the end (delta: -24.3MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2022-11-23 15:53:04,544 INFO L158 Benchmark]: Witness Printer took 4.87ms. Allocated memory is still 197.1MB. Free memory was 127.0MB in the beginning and 126.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:53:04,547 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89ms. Allocated memory is still 115.3MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 772.55ms. Allocated memory is still 163.6MB. Free memory was 120.9MB in the beginning and 121.6MB in the end (delta: -710.7kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.61ms. Allocated memory is still 163.6MB. Free memory was 121.6MB in the beginning and 119.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.72ms. Allocated memory is still 163.6MB. Free memory was 119.5MB in the beginning and 117.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 540.55ms. Allocated memory is still 163.6MB. Free memory was 117.9MB in the beginning and 103.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6243.45ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 102.8MB in the beginning and 127.0MB in the end (delta: -24.3MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Witness Printer took 4.87ms. Allocated memory is still 197.1MB. Free memory was 127.0MB in the beginning and 126.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0s, 112 PlacesBefore, 30 PlacesAfterwards, 109 TransitionsBefore, 25 TransitionsAfterwards, 2120 CoEnabledTransitionPairs, 8 FixpointIterations, 58 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 117 TotalNumberOfCompositions, 4370 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3181, independent: 3035, independent conditional: 0, independent unconditional: 3035, dependent: 146, dependent conditional: 0, dependent unconditional: 146, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1693, independent: 1656, independent conditional: 0, independent unconditional: 1656, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1693, independent: 1620, independent conditional: 0, independent unconditional: 1620, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 73, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 161, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 89, dependent conditional: 0, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3181, independent: 1379, independent conditional: 0, independent unconditional: 1379, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 1693, unknown conditional: 0, unknown unconditional: 1693] , Statistics on independence cache: Total cache size (in pairs): 113, Positive cache size: 104, Positive conditional cache size: 0, Positive unconditional cache size: 104, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, 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: 700]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int x; [L698] 0 volatile int n; [L710] 0 pthread_t t1, t2; [L711] 0 int i; [L712] 0 x = 0 [L713] 0 n = __VERIFIER_nondet_int() [L714] EXPR 0 n > 0 [L714] CALL 0 assume_abort_if_not(n > 0) [L686] COND FALSE 0 !(!cond) [L714] RET 0 assume_abort_if_not(n > 0) [L715] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [#in~argv={50:51}, argc=49, argv={50:51}, n=1, pthread_create(&t1, 0, thr1, 0)=-1, t1={3:0}, t2={5:0}, unknown-#in~argc-unknown=49, x=0] [L700] 1 x < n VAL [#in~arg={0:0}, arg={0:0}, n=1, x=0] [L716] 0 i = 0 VAL [#in~argv={50:51}, argc=49, argv={50:51}, i=0, n=1, t1={3:0}, t2={5:0}, unknown-#in~argc-unknown=49, x=0] [L716] 0 i < n [L716] COND TRUE 0 i < n [L717] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [#in~arg={0:0}, #in~argv={50:51}, argc=49, argv={50:51}, i=0, n=1, pthread_create(&t2, 0, thr2, 0)=0, t1={3:0}, t2={5:0}, unknown-#in~argc-unknown=49, x=0] [L704] 2 int t; [L705] 2 t = x [L706] 2 x = t + 1 VAL [#in~arg={0:0}, arg={0:0}, n=1, t=0, x=1, x = t + 1=52] [L700] 1 x < n VAL [#in~arg={0:0}, #in~arg={0:0}, arg={0:0}, arg={0:0}, n=1, t=0, x=1, x = t + 1=52] Now there is a data race on ~x~0 between C: x = t + 1 [706] and C: x < n [700] - UnprovableResult [Line: 705]: 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: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: 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: 715]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 141 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 15 mSDtfsCounter, 82 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=291occurred 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, 34 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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! [2022-11-23 15:53:04,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8015911d-962a-41b8-92a4-8deadc8fd82e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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