./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428aacc1-1be2-4c42-b4eb-599972ee94b0/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428aacc1-1be2-4c42-b4eb-599972ee94b0/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428aacc1-1be2-4c42-b4eb-599972ee94b0/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428aacc1-1be2-4c42-b4eb-599972ee94b0/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428aacc1-1be2-4c42-b4eb-599972ee94b0/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428aacc1-1be2-4c42-b4eb-599972ee94b0/bin/utaipan-g80aRyZoba --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 dc1a8bd7c922f93873ec39bdce92396c491017d4a5984ae9a59a0e03f4bb08ec --- 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-b5237d8 [2022-11-22 02:07:32,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:07:32,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:07:32,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:07:32,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:07:32,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:07:32,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:07:32,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:07:32,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:07:32,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:07:32,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:07:32,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:07:32,567 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:07:32,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:07:32,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:07:32,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:07:32,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:07:32,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:07:32,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:07:32,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:07:32,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:07:32,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:07:32,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:07:32,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:07:32,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:07:32,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:07:32,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:07:32,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:07:32,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:07:32,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:07:32,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:07:32,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:07:32,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:07:32,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:07:32,595 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:07:32,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:07:32,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:07:32,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:07:32,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:07:32,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:07:32,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:07:32,600 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428aacc1-1be2-4c42-b4eb-599972ee94b0/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-22 02:07:32,625 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:07:32,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:07:32,626 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:07:32,626 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:07:32,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:07:32,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:07:32,628 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:07:32,628 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:07:32,629 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:07:32,629 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:07:32,629 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:07:32,630 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:07:32,630 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:07:32,630 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:07:32,631 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:07:32,631 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:07:32,632 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:07:32,632 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:07:32,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:07:32,633 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:07:32,634 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:07:32,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:07:32,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:07:32,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:07:32,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:07:32,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:07:32,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:07:32,636 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-22 02:07:32,636 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:07:32,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:07:32,637 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:07:32,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:07:32,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:07:32,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:07:32,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:07:32,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:07:32,638 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:07:32,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:07:32,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:07:32,639 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:07:32,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:07:32,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:07:32,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:07:32,640 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_428aacc1-1be2-4c42-b4eb-599972ee94b0/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428aacc1-1be2-4c42-b4eb-599972ee94b0/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc1a8bd7c922f93873ec39bdce92396c491017d4a5984ae9a59a0e03f4bb08ec [2022-11-22 02:07:32,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:07:32,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:07:32,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:07:32,954 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:07:32,955 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:07:32,956 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428aacc1-1be2-4c42-b4eb-599972ee94b0/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-2.i [2022-11-22 02:07:36,102 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:07:36,389 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:07:36,390 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428aacc1-1be2-4c42-b4eb-599972ee94b0/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-2.i [2022-11-22 02:07:36,404 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428aacc1-1be2-4c42-b4eb-599972ee94b0/bin/utaipan-g80aRyZoba/data/057916999/6ca7c3e376604a4e88bcc23a451ec87b/FLAG16b7a949e [2022-11-22 02:07:36,419 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428aacc1-1be2-4c42-b4eb-599972ee94b0/bin/utaipan-g80aRyZoba/data/057916999/6ca7c3e376604a4e88bcc23a451ec87b [2022-11-22 02:07:36,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:07:36,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:07:36,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:07:36,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:07:36,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:07:36,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:07:36" (1/1) ... [2022-11-22 02:07:36,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3759a772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:36, skipping insertion in model container [2022-11-22 02:07:36,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:07:36" (1/1) ... [2022-11-22 02:07:36,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:07:36,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:07:36,984 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_428aacc1-1be2-4c42-b4eb-599972ee94b0/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-2.i[30035,30048] [2022-11-22 02:07:37,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:07:37,026 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:07:37,077 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_428aacc1-1be2-4c42-b4eb-599972ee94b0/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-variant-2.i[30035,30048] [2022-11-22 02:07:37,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:07:37,137 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:07:37,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:37 WrapperNode [2022-11-22 02:07:37,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:07:37,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:07:37,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:07:37,141 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:07:37,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:37" (1/1) ... [2022-11-22 02:07:37,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:37" (1/1) ... [2022-11-22 02:07:37,215 INFO L138 Inliner]: procedures = 171, calls = 26, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 110 [2022-11-22 02:07:37,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:07:37,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:07:37,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:07:37,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:07:37,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:37" (1/1) ... [2022-11-22 02:07:37,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:37" (1/1) ... [2022-11-22 02:07:37,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:37" (1/1) ... [2022-11-22 02:07:37,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:37" (1/1) ... [2022-11-22 02:07:37,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:37" (1/1) ... [2022-11-22 02:07:37,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:37" (1/1) ... [2022-11-22 02:07:37,249 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:37" (1/1) ... [2022-11-22 02:07:37,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:37" (1/1) ... [2022-11-22 02:07:37,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:07:37,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:07:37,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:07:37,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:07:37,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:37" (1/1) ... [2022-11-22 02:07:37,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:07:37,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428aacc1-1be2-4c42-b4eb-599972ee94b0/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:07:37,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428aacc1-1be2-4c42-b4eb-599972ee94b0/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:07:37,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428aacc1-1be2-4c42-b4eb-599972ee94b0/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:07:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-22 02:07:37,358 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-22 02:07:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-22 02:07:37,358 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-22 02:07:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:07:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 02:07:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:07:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:07:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:07:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:07:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:07:37,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:07:37,361 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 02:07:37,548 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:07:37,550 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:07:37,838 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:07:37,846 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:07:37,846 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:07:37,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:07:37 BoogieIcfgContainer [2022-11-22 02:07:37,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:07:37,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:07:37,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:07:37,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:07:37,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:07:36" (1/3) ... [2022-11-22 02:07:37,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cf1bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:07:37, skipping insertion in model container [2022-11-22 02:07:37,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:07:37" (2/3) ... [2022-11-22 02:07:37,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cf1bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:07:37, skipping insertion in model container [2022-11-22 02:07:37,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:07:37" (3/3) ... [2022-11-22 02:07:37,867 INFO L112 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-variant-2.i [2022-11-22 02:07:37,879 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 02:07:37,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:07:37,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-22 02:07:37,889 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:07:37,960 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 02:07:37,998 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:07:38,011 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 138 transitions, 286 flow [2022-11-22 02:07:38,014 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 138 transitions, 286 flow [2022-11-22 02:07:38,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 138 transitions, 286 flow [2022-11-22 02:07:38,090 INFO L130 PetriNetUnfolder]: 7/154 cut-off events. [2022-11-22 02:07:38,091 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-22 02:07:38,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 154 events. 7/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 188 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 101. Up to 4 conditions per place. [2022-11-22 02:07:38,100 INFO L119 LiptonReduction]: Number of co-enabled transitions 3398 [2022-11-22 02:07:45,187 INFO L134 LiptonReduction]: Checked pairs total: 6837 [2022-11-22 02:07:45,187 INFO L136 LiptonReduction]: Total number of compositions: 157 [2022-11-22 02:07:45,198 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 30 transitions, 70 flow [2022-11-22 02:07:45,246 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 418 states, 372 states have (on average 3.067204301075269) internal successors, (1141), 417 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:45,266 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:07:45,272 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;@3924f9ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:07:45,273 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-11-22 02:07:45,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 418 states, 372 states have (on average 3.067204301075269) internal successors, (1141), 417 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:45,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 02:07:45,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:45,282 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 02:07:45,283 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-11-22 02:07:45,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:45,288 INFO L85 PathProgramCache]: Analyzing trace with hash 535, now seen corresponding path program 1 times [2022-11-22 02:07:45,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:45,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991326852] [2022-11-22 02:07:45,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:45,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:45,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:45,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:45,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991326852] [2022-11-22 02:07:45,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991326852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:45,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:45,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 02:07:45,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415465016] [2022-11-22 02:07:45,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:45,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 02:07:45,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:45,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 02:07:45,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:07:45,479 INFO L87 Difference]: Start difference. First operand has 418 states, 372 states have (on average 3.067204301075269) internal successors, (1141), 417 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:45,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:45,535 INFO L93 Difference]: Finished difference Result 235 states and 594 transitions. [2022-11-22 02:07:45,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 02:07:45,541 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 [2022-11-22 02:07:45,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:45,552 INFO L225 Difference]: With dead ends: 235 [2022-11-22 02:07:45,554 INFO L226 Difference]: Without dead ends: 233 [2022-11-22 02:07:45,555 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 [2022-11-22 02:07:45,560 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:45,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:07:45,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-11-22 02:07:45,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2022-11-22 02:07:45,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 225 states have (on average 2.6133333333333333) internal successors, (588), 232 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:45,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 588 transitions. [2022-11-22 02:07:45,639 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 588 transitions. Word has length 1 [2022-11-22 02:07:45,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:45,640 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 588 transitions. [2022-11-22 02:07:45,640 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) [2022-11-22 02:07:45,642 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 588 transitions. [2022-11-22 02:07:45,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:07:45,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:45,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:07:45,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:07:45,643 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-11-22 02:07:45,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:45,644 INFO L85 PathProgramCache]: Analyzing trace with hash 16528607, now seen corresponding path program 1 times [2022-11-22 02:07:45,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:45,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553311634] [2022-11-22 02:07:45,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:45,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:45,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:45,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:45,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553311634] [2022-11-22 02:07:45,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553311634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:45,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:45,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:07:45,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48809729] [2022-11-22 02:07:45,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:45,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:07:45,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:45,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:07:45,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:07:45,777 INFO L87 Difference]: Start difference. First operand 233 states and 588 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:45,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:45,843 INFO L93 Difference]: Finished difference Result 262 states and 626 transitions. [2022-11-22 02:07:45,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:07:45,844 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 [2022-11-22 02:07:45,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:45,846 INFO L225 Difference]: With dead ends: 262 [2022-11-22 02:07:45,846 INFO L226 Difference]: Without dead ends: 257 [2022-11-22 02:07:45,847 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 [2022-11-22 02:07:45,848 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 14 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:45,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 9 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:07:45,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-11-22 02:07:45,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 218. [2022-11-22 02:07:45,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 211 states have (on average 2.5497630331753554) internal successors, (538), 217 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:45,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 538 transitions. [2022-11-22 02:07:45,864 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 538 transitions. Word has length 4 [2022-11-22 02:07:45,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:45,864 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 538 transitions. [2022-11-22 02:07:45,865 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) [2022-11-22 02:07:45,865 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 538 transitions. [2022-11-22 02:07:45,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 02:07:45,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:45,866 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:45,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:07:45,867 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-11-22 02:07:45,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:45,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1819363601, now seen corresponding path program 1 times [2022-11-22 02:07:45,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:45,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016748708] [2022-11-22 02:07:45,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:45,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:07:45,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:07:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:07:46,021 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:07:46,021 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:07:46,023 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-11-22 02:07:46,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2022-11-22 02:07:46,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2022-11-22 02:07:46,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2022-11-22 02:07:46,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2022-11-22 02:07:46,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2022-11-22 02:07:46,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2022-11-22 02:07:46,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2022-11-22 02:07:46,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2022-11-22 02:07:46,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2022-11-22 02:07:46,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2022-11-22 02:07:46,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 17 remaining) [2022-11-22 02:07:46,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2022-11-22 02:07:46,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2022-11-22 02:07:46,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2022-11-22 02:07:46,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2022-11-22 02:07:46,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2022-11-22 02:07:46,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:07:46,035 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-22 02:07:46,037 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-22 02:07:46,038 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-22 02:07:46,077 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 02:07:46,085 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:07:46,086 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 189 places, 188 transitions, 400 flow [2022-11-22 02:07:46,086 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 189 places, 188 transitions, 400 flow [2022-11-22 02:07:46,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 189 places, 188 transitions, 400 flow [2022-11-22 02:07:46,134 INFO L130 PetriNetUnfolder]: 10/208 cut-off events. [2022-11-22 02:07:46,134 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-22 02:07:46,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 208 events. 10/208 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 362 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 217. Up to 6 conditions per place. [2022-11-22 02:07:46,142 INFO L119 LiptonReduction]: Number of co-enabled transitions 7896 [2022-11-22 02:07:53,311 INFO L134 LiptonReduction]: Checked pairs total: 21490 [2022-11-22 02:07:53,311 INFO L136 LiptonReduction]: Total number of compositions: 197 [2022-11-22 02:07:53,313 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 54 transitions, 132 flow [2022-11-22 02:07:53,602 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7457 states, 7279 states have (on average 4.017447451573018) internal successors, (29243), 7456 states have internal predecessors, (29243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:53,606 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:07:53,613 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;@3924f9ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:07:53,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-22 02:07:53,652 INFO L276 IsEmpty]: Start isEmpty. Operand has 7457 states, 7279 states have (on average 4.017447451573018) internal successors, (29243), 7456 states have internal predecessors, (29243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:53,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 02:07:53,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:53,653 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 02:07:53,653 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-22 02:07:53,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:53,656 INFO L85 PathProgramCache]: Analyzing trace with hash 975, now seen corresponding path program 1 times [2022-11-22 02:07:53,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:53,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085213405] [2022-11-22 02:07:53,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:53,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:53,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:53,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:53,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085213405] [2022-11-22 02:07:53,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085213405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:53,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:53,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 02:07:53,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876680069] [2022-11-22 02:07:53,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:53,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 02:07:53,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:53,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 02:07:53,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:07:53,691 INFO L87 Difference]: Start difference. First operand has 7457 states, 7279 states have (on average 4.017447451573018) internal successors, (29243), 7456 states have internal predecessors, (29243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:53,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:53,792 INFO L93 Difference]: Finished difference Result 4590 states and 16439 transitions. [2022-11-22 02:07:53,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 02:07:53,793 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 [2022-11-22 02:07:53,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:53,836 INFO L225 Difference]: With dead ends: 4590 [2022-11-22 02:07:53,836 INFO L226 Difference]: Without dead ends: 4583 [2022-11-22 02:07:53,836 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 [2022-11-22 02:07:53,839 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:53,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:07:53,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4583 states. [2022-11-22 02:07:54,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4583 to 4583. [2022-11-22 02:07:54,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4583 states, 4542 states have (on average 3.6129458388375166) internal successors, (16410), 4582 states have internal predecessors, (16410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:54,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 16410 transitions. [2022-11-22 02:07:54,195 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 16410 transitions. Word has length 1 [2022-11-22 02:07:54,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:54,195 INFO L495 AbstractCegarLoop]: Abstraction has 4583 states and 16410 transitions. [2022-11-22 02:07:54,196 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) [2022-11-22 02:07:54,196 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 16410 transitions. [2022-11-22 02:07:54,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:07:54,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:54,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:07:54,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:07:54,197 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-22 02:07:54,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:54,198 INFO L85 PathProgramCache]: Analyzing trace with hash 29878282, now seen corresponding path program 1 times [2022-11-22 02:07:54,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:54,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756266566] [2022-11-22 02:07:54,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:54,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:54,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:54,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:54,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756266566] [2022-11-22 02:07:54,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756266566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:54,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:54,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:07:54,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121620496] [2022-11-22 02:07:54,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:54,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:07:54,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:54,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:07:54,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:07:54,320 INFO L87 Difference]: Start difference. First operand 4583 states and 16410 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:54,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:54,473 INFO L93 Difference]: Finished difference Result 5956 states and 20211 transitions. [2022-11-22 02:07:54,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:07:54,474 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 [2022-11-22 02:07:54,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:54,517 INFO L225 Difference]: With dead ends: 5956 [2022-11-22 02:07:54,517 INFO L226 Difference]: Without dead ends: 5938 [2022-11-22 02:07:54,518 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 [2022-11-22 02:07:54,519 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 28 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:54,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 21 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:07:54,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5938 states. [2022-11-22 02:07:54,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5938 to 4542. [2022-11-22 02:07:54,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4542 states, 4508 states have (on average 3.5281721384205857) internal successors, (15905), 4541 states have internal predecessors, (15905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:54,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4542 states to 4542 states and 15905 transitions. [2022-11-22 02:07:54,818 INFO L78 Accepts]: Start accepts. Automaton has 4542 states and 15905 transitions. Word has length 4 [2022-11-22 02:07:54,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:54,819 INFO L495 AbstractCegarLoop]: Abstraction has 4542 states and 15905 transitions. [2022-11-22 02:07:54,819 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) [2022-11-22 02:07:54,819 INFO L276 IsEmpty]: Start isEmpty. Operand 4542 states and 15905 transitions. [2022-11-22 02:07:54,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 02:07:54,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:54,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:54,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:07:54,822 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-22 02:07:54,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:54,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1945437423, now seen corresponding path program 1 times [2022-11-22 02:07:54,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:54,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363460364] [2022-11-22 02:07:54,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:54,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:07:54,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:07:54,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:07:54,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363460364] [2022-11-22 02:07:54,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363460364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:07:54,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:07:54,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:07:54,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743873294] [2022-11-22 02:07:54,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:07:54,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:07:54,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:07:54,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:07:54,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:07:54,911 INFO L87 Difference]: Start difference. First operand 4542 states and 15905 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:55,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:07:55,028 INFO L93 Difference]: Finished difference Result 4725 states and 16447 transitions. [2022-11-22 02:07:55,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:07:55,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-22 02:07:55,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:07:55,063 INFO L225 Difference]: With dead ends: 4725 [2022-11-22 02:07:55,063 INFO L226 Difference]: Without dead ends: 4682 [2022-11-22 02:07:55,064 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 [2022-11-22 02:07:55,064 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 19 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:07:55,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 21 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:07:55,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4682 states. [2022-11-22 02:07:55,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4682 to 4682. [2022-11-22 02:07:55,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4682 states, 4651 states have (on average 3.4973124059342076) internal successors, (16266), 4681 states have internal predecessors, (16266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:55,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4682 states to 4682 states and 16266 transitions. [2022-11-22 02:07:55,391 INFO L78 Accepts]: Start accepts. Automaton has 4682 states and 16266 transitions. Word has length 14 [2022-11-22 02:07:55,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:07:55,392 INFO L495 AbstractCegarLoop]: Abstraction has 4682 states and 16266 transitions. [2022-11-22 02:07:55,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:07:55,393 INFO L276 IsEmpty]: Start isEmpty. Operand 4682 states and 16266 transitions. [2022-11-22 02:07:55,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 02:07:55,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:07:55,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:07:55,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:07:55,401 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-22 02:07:55,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:07:55,402 INFO L85 PathProgramCache]: Analyzing trace with hash -419183969, now seen corresponding path program 1 times [2022-11-22 02:07:55,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:07:55,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078457563] [2022-11-22 02:07:55,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:07:55,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:07:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:07:55,464 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:07:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:07:55,513 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:07:55,538 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:07:55,538 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (21 of 22 remaining) [2022-11-22 02:07:55,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-11-22 02:07:55,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-11-22 02:07:55,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-11-22 02:07:55,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-11-22 02:07:55,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-11-22 02:07:55,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-11-22 02:07:55,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-11-22 02:07:55,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-11-22 02:07:55,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-11-22 02:07:55,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2022-11-22 02:07:55,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 22 remaining) [2022-11-22 02:07:55,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 22 remaining) [2022-11-22 02:07:55,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-11-22 02:07:55,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-11-22 02:07:55,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-11-22 02:07:55,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-11-22 02:07:55,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-11-22 02:07:55,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-11-22 02:07:55,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-11-22 02:07:55,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-11-22 02:07:55,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-11-22 02:07:55,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:07:55,543 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-22 02:07:55,548 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-11-22 02:07:55,549 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:07:55,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:07:55 BasicIcfg [2022-11-22 02:07:55,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:07:55,662 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:07:55,662 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:07:55,663 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:07:55,663 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:07:37" (3/4) ... [2022-11-22 02:07:55,666 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 02:07:55,666 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:07:55,666 INFO L158 Benchmark]: Toolchain (without parser) took 19231.87ms. Allocated memory was 157.3MB in the beginning and 295.7MB in the end (delta: 138.4MB). Free memory was 112.0MB in the beginning and 157.6MB in the end (delta: -45.6MB). Peak memory consumption was 92.4MB. Max. memory is 16.1GB. [2022-11-22 02:07:55,669 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:07:55,669 INFO L158 Benchmark]: CACSL2BoogieTranslator took 702.45ms. Allocated memory is still 157.3MB. Free memory was 111.7MB in the beginning and 91.9MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-22 02:07:55,670 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.87ms. Allocated memory is still 157.3MB. Free memory was 91.9MB in the beginning and 89.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:07:55,670 INFO L158 Benchmark]: Boogie Preprocessor took 49.22ms. Allocated memory is still 157.3MB. Free memory was 89.5MB in the beginning and 88.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:07:55,671 INFO L158 Benchmark]: RCFGBuilder took 582.56ms. Allocated memory is still 157.3MB. Free memory was 88.0MB in the beginning and 118.7MB in the end (delta: -30.7MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2022-11-22 02:07:55,671 INFO L158 Benchmark]: TraceAbstraction took 17811.53ms. Allocated memory was 157.3MB in the beginning and 295.7MB in the end (delta: 138.4MB). Free memory was 117.8MB in the beginning and 157.6MB in the end (delta: -39.8MB). Peak memory consumption was 126.4MB. Max. memory is 16.1GB. [2022-11-22 02:07:55,672 INFO L158 Benchmark]: Witness Printer took 3.77ms. Allocated memory is still 295.7MB. Free memory is still 157.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:07:55,673 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 702.45ms. Allocated memory is still 157.3MB. Free memory was 111.7MB in the beginning and 91.9MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.87ms. Allocated memory is still 157.3MB. Free memory was 91.9MB in the beginning and 89.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.22ms. Allocated memory is still 157.3MB. Free memory was 89.5MB in the beginning and 88.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 582.56ms. Allocated memory is still 157.3MB. Free memory was 88.0MB in the beginning and 118.7MB in the end (delta: -30.7MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * TraceAbstraction took 17811.53ms. Allocated memory was 157.3MB in the beginning and 295.7MB in the end (delta: 138.4MB). Free memory was 117.8MB in the beginning and 157.6MB in the end (delta: -39.8MB). Peak memory consumption was 126.4MB. Max. memory is 16.1GB. * Witness Printer took 3.77ms. Allocated memory is still 295.7MB. Free memory is still 157.6MB. 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: 7.2s, 138 PlacesBefore, 34 PlacesAfterwards, 138 TransitionsBefore, 30 TransitionsAfterwards, 3398 CoEnabledTransitionPairs, 8 FixpointIterations, 71 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 14 ConcurrentYvCompositions, 4 ChoiceCompositions, 157 TotalNumberOfCompositions, 6837 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4371, independent: 4183, independent conditional: 0, independent unconditional: 4183, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2645, independent: 2601, independent conditional: 0, independent unconditional: 2601, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2645, independent: 2522, independent conditional: 0, independent unconditional: 2522, dependent: 123, dependent conditional: 0, dependent unconditional: 123, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 123, independent: 79, independent conditional: 0, independent unconditional: 79, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 160, independent: 87, independent conditional: 0, independent unconditional: 87, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4371, independent: 1582, independent conditional: 0, independent unconditional: 1582, dependent: 144, dependent conditional: 0, dependent unconditional: 144, unknown: 2645, unknown conditional: 0, unknown unconditional: 2645] , Statistics on independence cache: Total cache size (in pairs): 128, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, 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: 7.2s, 189 PlacesBefore, 59 PlacesAfterwards, 188 TransitionsBefore, 54 TransitionsAfterwards, 7896 CoEnabledTransitionPairs, 8 FixpointIterations, 87 TrivialSequentialCompositions, 76 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 21 ConcurrentYvCompositions, 4 ChoiceCompositions, 197 TotalNumberOfCompositions, 21490 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10976, independent: 10604, independent conditional: 0, independent unconditional: 10604, dependent: 372, dependent conditional: 0, dependent unconditional: 372, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6060, independent: 5972, independent conditional: 0, independent unconditional: 5972, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6060, independent: 5823, independent conditional: 0, independent unconditional: 5823, dependent: 237, dependent conditional: 0, dependent unconditional: 237, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 237, independent: 149, independent conditional: 0, independent unconditional: 149, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 253, independent: 133, independent conditional: 0, independent unconditional: 133, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10976, independent: 4632, independent conditional: 0, independent unconditional: 4632, dependent: 284, dependent conditional: 0, dependent unconditional: 284, unknown: 6060, unknown conditional: 0, unknown unconditional: 6060] , Statistics on independence cache: Total cache size (in pairs): 440, Positive cache size: 401, Positive conditional cache size: 0, Positive unconditional cache size: 401, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 694]: Data race detected Data race detected The following path leads to a data race: [L690] 0 volatile int x; [L691] 0 volatile int n; [L692] 0 pthread_mutex_t mut = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L708] 0 pthread_t t1, t2; [L709] 0 x = 0 [L710] 0 n = __VERIFIER_nondet_uint() [L711] EXPR 0 n >= (10/2) [L711] EXPR 0 n >= (10/2) && n < 10 [L711] EXPR 0 n < 10 [L711] EXPR 0 n >= (10/2) && n < 10 [L711] CALL 0 assume_abort_if_not(n >= (10/2) && n < 10) [L687] COND FALSE 0 !(!cond) [L711] RET 0 assume_abort_if_not(n >= (10/2) && n < 10) [L712] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, mut={3:0}, n=5, pthread_create(&t1, 0, thr1, 0)=10, t1={6:0}, t2={7:0}, x=0] [L694] 1 x <= n VAL [arg={0:0}, arg={0:0}, mut={3:0}, n=5, x=0] [L713] 0 int i = 0; VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, i=0, mut={3:0}, n=5, t1={6:0}, t2={7:0}, x=0] [L713] 0 i < n [L713] COND TRUE 0 i < n [L714] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(argc)=49, argc=49, argv={50:51}, argv={50:51}, i=0, mut={3:0}, n=5, pthread_create(&t2, 0, thr2, 0)=11, t1={6:0}, t2={7:0}, x=0] [L697] 2 int t; [L698] 2 int k = __VERIFIER_nondet_uint(); [L699] CALL 2 assume_abort_if_not(k >= (10/2) && k <= 10) [L687] COND FALSE 2 !(!cond) [L699] RET 2 assume_abort_if_not(k >= (10/2) && k <= 10) [L701] 2 t = x [L702] 2 k == n [L702] COND TRUE 2 k == n [L703] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, k=5, mut={3:0}, n=5, t=0, x=1, x = t + 1=52] [L694] 1 x <= n VAL [arg={0:0}, arg={0:0}, mut={3:0}, n=5, x=1] Now there is a data race on ~x~0 between C: x = t + 1 [703] and C: x <= n [694] - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 181 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 8.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 12 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=418occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 39 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 228 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 9.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 171 IncrementalHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 48 mSDtfsCounter, 171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7457occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1396 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-22 02:07:55,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428aacc1-1be2-4c42-b4eb-599972ee94b0/bin/utaipan-g80aRyZoba/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