./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/qw2004-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_90505c00-ff25-42a3-bad4-8274446e0dc8/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90505c00-ff25-42a3-bad4-8274446e0dc8/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90505c00-ff25-42a3-bad4-8274446e0dc8/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90505c00-ff25-42a3-bad4-8274446e0dc8/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/qw2004-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90505c00-ff25-42a3-bad4-8274446e0dc8/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90505c00-ff25-42a3-bad4-8274446e0dc8/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3fb83c29fe591f537beeb8acce355ea986d79a29cfcecdcee0a9fb1725d601d1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:13:22,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:13:22,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:13:22,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:13:22,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:13:22,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:13:22,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:13:22,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:13:22,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:13:22,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:13:22,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:13:22,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:13:22,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:13:22,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:13:22,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:13:22,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:13:22,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:13:22,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:13:22,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:13:22,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:13:22,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:13:22,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:13:22,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:13:22,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:13:22,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:13:22,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:13:22,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:13:23,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:13:23,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:13:23,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:13:23,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:13:23,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:13:23,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:13:23,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:13:23,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:13:23,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:13:23,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:13:23,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:13:23,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:13:23,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:13:23,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:13:23,010 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90505c00-ff25-42a3-bad4-8274446e0dc8/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-25 22:13:23,034 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:13:23,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:13:23,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:13:23,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:13:23,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:13:23,036 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:13:23,036 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:13:23,036 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:13:23,037 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:13:23,037 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:13:23,037 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:13:23,037 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:13:23,038 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:13:23,038 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:13:23,038 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:13:23,039 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:13:23,039 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:13:23,039 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:13:23,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:13:23,040 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:13:23,041 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:13:23,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:13:23,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:13:23,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:13:23,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:13:23,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:13:23,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:13:23,045 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 22:13:23,046 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:13:23,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:13:23,046 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:13:23,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:13:23,047 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:13:23,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:13:23,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:13:23,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:13:23,049 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:13:23,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:13:23,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:13:23,050 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:13:23,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:13:23,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:13:23,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:13:23,051 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_90505c00-ff25-42a3-bad4-8274446e0dc8/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90505c00-ff25-42a3-bad4-8274446e0dc8/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fb83c29fe591f537beeb8acce355ea986d79a29cfcecdcee0a9fb1725d601d1 [2022-11-25 22:13:23,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:13:23,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:13:23,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:13:23,433 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:13:23,434 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:13:23,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90505c00-ff25-42a3-bad4-8274446e0dc8/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-lit/qw2004-1.i [2022-11-25 22:13:26,381 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:13:26,703 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:13:26,704 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90505c00-ff25-42a3-bad4-8274446e0dc8/sv-benchmarks/c/pthread-lit/qw2004-1.i [2022-11-25 22:13:26,720 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90505c00-ff25-42a3-bad4-8274446e0dc8/bin/utaipan-ByfvJB40ur/data/04381967b/35e93518a5d94d108bcecdd2a1a555f0/FLAGd1d442e67 [2022-11-25 22:13:26,739 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90505c00-ff25-42a3-bad4-8274446e0dc8/bin/utaipan-ByfvJB40ur/data/04381967b/35e93518a5d94d108bcecdd2a1a555f0 [2022-11-25 22:13:26,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:13:26,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:13:26,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:13:26,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:13:26,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:13:26,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:13:26" (1/1) ... [2022-11-25 22:13:26,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@728dc096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:26, skipping insertion in model container [2022-11-25 22:13:26,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:13:26" (1/1) ... [2022-11-25 22:13:26,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:13:26,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:13:27,278 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_90505c00-ff25-42a3-bad4-8274446e0dc8/sv-benchmarks/c/pthread-lit/qw2004-1.i[30003,30016] [2022-11-25 22:13:27,283 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:13:27,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:13:27,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:13:27,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:13:27,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:13:27,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:13:27,315 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:13:27,344 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_90505c00-ff25-42a3-bad4-8274446e0dc8/sv-benchmarks/c/pthread-lit/qw2004-1.i[30003,30016] [2022-11-25 22:13:27,344 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:13:27,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:13:27,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:13:27,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 22:13:27,347 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 22:13:27,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:13:27,388 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:13:27,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:27 WrapperNode [2022-11-25 22:13:27,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:13:27,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:13:27,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:13:27,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:13:27,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:27" (1/1) ... [2022-11-25 22:13:27,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:27" (1/1) ... [2022-11-25 22:13:27,470 INFO L138 Inliner]: procedures = 175, calls = 23, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 158 [2022-11-25 22:13:27,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:13:27,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:13:27,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:13:27,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:13:27,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:27" (1/1) ... [2022-11-25 22:13:27,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:27" (1/1) ... [2022-11-25 22:13:27,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:27" (1/1) ... [2022-11-25 22:13:27,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:27" (1/1) ... [2022-11-25 22:13:27,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:27" (1/1) ... [2022-11-25 22:13:27,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:27" (1/1) ... [2022-11-25 22:13:27,494 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:27" (1/1) ... [2022-11-25 22:13:27,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:27" (1/1) ... [2022-11-25 22:13:27,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:13:27,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:13:27,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:13:27,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:13:27,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:27" (1/1) ... [2022-11-25 22:13:27,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:13:27,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90505c00-ff25-42a3-bad4-8274446e0dc8/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:13:27,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90505c00-ff25-42a3-bad4-8274446e0dc8/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:13:27,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90505c00-ff25-42a3-bad4-8274446e0dc8/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:13:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2022-11-25 22:13:27,576 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2022-11-25 22:13:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:13:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 22:13:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:13:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:13:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:13:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:13:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 22:13:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:13:27,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:13:27,579 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 22:13:27,747 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:13:27,749 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:13:28,045 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:13:28,178 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:13:28,178 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:13:28,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:13:28 BoogieIcfgContainer [2022-11-25 22:13:28,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:13:28,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:13:28,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:13:28,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:13:28,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:13:26" (1/3) ... [2022-11-25 22:13:28,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38da663f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:13:28, skipping insertion in model container [2022-11-25 22:13:28,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:13:27" (2/3) ... [2022-11-25 22:13:28,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38da663f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:13:28, skipping insertion in model container [2022-11-25 22:13:28,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:13:28" (3/3) ... [2022-11-25 22:13:28,190 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-1.i [2022-11-25 22:13:28,199 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 22:13:28,225 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:13:28,225 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-11-25 22:13:28,226 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 22:13:28,336 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 22:13:28,385 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 22:13:28,405 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 169 transitions, 343 flow [2022-11-25 22:13:28,413 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 169 transitions, 343 flow [2022-11-25 22:13:28,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 169 transitions, 343 flow [2022-11-25 22:13:28,552 INFO L130 PetriNetUnfolder]: 6/168 cut-off events. [2022-11-25 22:13:28,552 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 22:13:28,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 168 events. 6/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 253 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 123. Up to 2 conditions per place. [2022-11-25 22:13:28,569 INFO L119 LiptonReduction]: Number of co-enabled transitions 7344 [2022-11-25 22:13:32,955 INFO L134 LiptonReduction]: Checked pairs total: 15525 [2022-11-25 22:13:32,955 INFO L136 LiptonReduction]: Total number of compositions: 202 [2022-11-25 22:13:32,965 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 43 transitions, 91 flow [2022-11-25 22:13:33,005 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 309 states, 234 states have (on average 2.6923076923076925) internal successors, (630), 308 states have internal predecessors, (630), 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) [2022-11-25 22:13:33,034 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:13:33,043 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;@7dfffd09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:13:33,047 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-11-25 22:13:33,053 INFO L276 IsEmpty]: Start isEmpty. Operand has 309 states, 234 states have (on average 2.6923076923076925) internal successors, (630), 308 states have internal predecessors, (630), 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) [2022-11-25 22:13:33,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-25 22:13:33,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:13:33,071 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-25 22:13:33,071 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-25 22:13:33,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:13:33,076 INFO L85 PathProgramCache]: Analyzing trace with hash 723, now seen corresponding path program 1 times [2022-11-25 22:13:33,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:13:33,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497837705] [2022-11-25 22:13:33,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:33,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:13:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:13:33,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:13:33,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:13:33,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497837705] [2022-11-25 22:13:33,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497837705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:13:33,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:13:33,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 22:13:33,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929644006] [2022-11-25 22:13:33,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:13:33,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:13:33,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:13:33,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:13:33,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:13:33,225 INFO L87 Difference]: Start difference. First operand has 309 states, 234 states have (on average 2.6923076923076925) internal successors, (630), 308 states have internal predecessors, (630), 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) [2022-11-25 22:13:33,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:13:33,302 INFO L93 Difference]: Finished difference Result 161 states and 335 transitions. [2022-11-25 22:13:33,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:13:33,304 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 [2022-11-25 22:13:33,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:13:33,319 INFO L225 Difference]: With dead ends: 161 [2022-11-25 22:13:33,320 INFO L226 Difference]: Without dead ends: 161 [2022-11-25 22:13:33,321 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 [2022-11-25 22:13:33,325 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:13:33,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:13:33,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-25 22:13:33,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-25 22:13:33,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 147 states have (on average 2.2789115646258504) internal successors, (335), 160 states have internal predecessors, (335), 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) [2022-11-25 22:13:33,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 335 transitions. [2022-11-25 22:13:33,397 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 335 transitions. Word has length 1 [2022-11-25 22:13:33,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:13:33,399 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 335 transitions. [2022-11-25 22:13:33,399 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) [2022-11-25 22:13:33,400 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 335 transitions. [2022-11-25 22:13:33,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:13:33,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:13:33,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:13:33,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:13:33,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-25 22:13:33,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:13:33,406 INFO L85 PathProgramCache]: Analyzing trace with hash 690434000, now seen corresponding path program 1 times [2022-11-25 22:13:33,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:13:33,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689364223] [2022-11-25 22:13:33,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:33,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:13:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:13:33,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:13:33,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:13:33,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689364223] [2022-11-25 22:13:33,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689364223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:13:33,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:13:33,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:13:33,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784112408] [2022-11-25 22:13:33,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:13:33,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:13:33,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:13:33,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:13:33,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:13:33,562 INFO L87 Difference]: Start difference. First operand 161 states and 335 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-25 22:13:33,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:13:33,623 INFO L93 Difference]: Finished difference Result 169 states and 350 transitions. [2022-11-25 22:13:33,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:13:33,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-11-25 22:13:33,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:13:33,626 INFO L225 Difference]: With dead ends: 169 [2022-11-25 22:13:33,627 INFO L226 Difference]: Without dead ends: 169 [2022-11-25 22:13:33,628 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 [2022-11-25 22:13:33,629 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 9 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:13:33,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 17 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:13:33,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-11-25 22:13:33,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-11-25 22:13:33,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 155 states have (on average 2.2580645161290325) internal successors, (350), 168 states have internal predecessors, (350), 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) [2022-11-25 22:13:33,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 350 transitions. [2022-11-25 22:13:33,653 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 350 transitions. Word has length 5 [2022-11-25 22:13:33,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:13:33,653 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 350 transitions. [2022-11-25 22:13:33,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-25 22:13:33,654 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 350 transitions. [2022-11-25 22:13:33,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:13:33,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:13:33,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:13:33,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:13:33,655 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-25 22:13:33,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:13:33,657 INFO L85 PathProgramCache]: Analyzing trace with hash 690608250, now seen corresponding path program 1 times [2022-11-25 22:13:33,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:13:33,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958499980] [2022-11-25 22:13:33,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:33,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:13:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:13:33,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:13:33,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:13:33,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958499980] [2022-11-25 22:13:33,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958499980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:13:33,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:13:33,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:13:33,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289323566] [2022-11-25 22:13:33,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:13:33,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:13:33,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:13:33,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:13:33,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:13:33,734 INFO L87 Difference]: Start difference. First operand 169 states and 350 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-25 22:13:33,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:13:33,798 INFO L93 Difference]: Finished difference Result 259 states and 524 transitions. [2022-11-25 22:13:33,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:13:33,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-11-25 22:13:33,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:13:33,800 INFO L225 Difference]: With dead ends: 259 [2022-11-25 22:13:33,801 INFO L226 Difference]: Without dead ends: 258 [2022-11-25 22:13:33,801 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 [2022-11-25 22:13:33,803 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 21 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:13:33,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 20 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:13:33,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-11-25 22:13:33,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 157. [2022-11-25 22:13:33,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 142 states have (on average 2.26056338028169) internal successors, (321), 156 states have internal predecessors, (321), 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) [2022-11-25 22:13:33,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 321 transitions. [2022-11-25 22:13:33,819 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 321 transitions. Word has length 5 [2022-11-25 22:13:33,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:13:33,820 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 321 transitions. [2022-11-25 22:13:33,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-25 22:13:33,820 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 321 transitions. [2022-11-25 22:13:33,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:13:33,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:13:33,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 22:13:33,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:13:33,822 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-25 22:13:33,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:13:33,823 INFO L85 PathProgramCache]: Analyzing trace with hash -71374435, now seen corresponding path program 1 times [2022-11-25 22:13:33,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:13:33,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793066440] [2022-11-25 22:13:33,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:13:33,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:13:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:13:33,859 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:13:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:13:33,910 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:13:33,911 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:13:33,912 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (26 of 27 remaining) [2022-11-25 22:13:33,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2022-11-25 22:13:33,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2022-11-25 22:13:33,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2022-11-25 22:13:33,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2022-11-25 22:13:33,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2022-11-25 22:13:33,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2022-11-25 22:13:33,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2022-11-25 22:13:33,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2022-11-25 22:13:33,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2022-11-25 22:13:33,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2022-11-25 22:13:33,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2022-11-25 22:13:33,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2022-11-25 22:13:33,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2022-11-25 22:13:33,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2022-11-25 22:13:33,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2022-11-25 22:13:33,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2022-11-25 22:13:33,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2022-11-25 22:13:33,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2022-11-25 22:13:33,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2022-11-25 22:13:33,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 27 remaining) [2022-11-25 22:13:33,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2022-11-25 22:13:33,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2022-11-25 22:13:33,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2022-11-25 22:13:33,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2022-11-25 22:13:33,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2022-11-25 22:13:33,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2022-11-25 22:13:33,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:13:33,933 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 22:13:33,940 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 22:13:33,940 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:13:33,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:13:33 BasicIcfg [2022-11-25 22:13:33,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:13:33,971 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:13:33,971 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:13:33,971 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:13:33,971 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:13:28" (3/4) ... [2022-11-25 22:13:33,974 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:13:33,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:13:33,975 INFO L158 Benchmark]: Toolchain (without parser) took 7229.53ms. Allocated memory was 192.9MB in the beginning and 232.8MB in the end (delta: 39.8MB). Free memory was 160.3MB in the beginning and 124.4MB in the end (delta: 35.9MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. [2022-11-25 22:13:33,975 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 130.0MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:13:33,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 641.61ms. Allocated memory is still 192.9MB. Free memory was 160.3MB in the beginning and 148.5MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 22:13:33,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.28ms. Allocated memory is still 192.9MB. Free memory was 148.5MB in the beginning and 146.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:13:33,976 INFO L158 Benchmark]: Boogie Preprocessor took 26.30ms. Allocated memory is still 192.9MB. Free memory was 146.4MB in the beginning and 144.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:13:33,976 INFO L158 Benchmark]: RCFGBuilder took 682.89ms. Allocated memory is still 192.9MB. Free memory was 144.2MB in the beginning and 122.2MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 22:13:33,976 INFO L158 Benchmark]: TraceAbstraction took 5786.74ms. Allocated memory was 192.9MB in the beginning and 232.8MB in the end (delta: 39.8MB). Free memory was 122.2MB in the beginning and 125.4MB in the end (delta: -3.2MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2022-11-25 22:13:33,977 INFO L158 Benchmark]: Witness Printer took 3.52ms. Allocated memory is still 232.8MB. Free memory was 125.4MB in the beginning and 124.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:13:33,978 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 130.0MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 641.61ms. Allocated memory is still 192.9MB. Free memory was 160.3MB in the beginning and 148.5MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.28ms. Allocated memory is still 192.9MB. Free memory was 148.5MB in the beginning and 146.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.30ms. Allocated memory is still 192.9MB. Free memory was 146.4MB in the beginning and 144.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 682.89ms. Allocated memory is still 192.9MB. Free memory was 144.2MB in the beginning and 122.2MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5786.74ms. Allocated memory was 192.9MB in the beginning and 232.8MB in the end (delta: 39.8MB). Free memory was 122.2MB in the beginning and 125.4MB in the end (delta: -3.2MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. * Witness Printer took 3.52ms. Allocated memory is still 232.8MB. Free memory was 125.4MB in the beginning and 124.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 167 PlacesBefore, 44 PlacesAfterwards, 169 TransitionsBefore, 43 TransitionsAfterwards, 7344 CoEnabledTransitionPairs, 9 FixpointIterations, 59 TrivialSequentialCompositions, 119 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 3 ChoiceCompositions, 202 TotalNumberOfCompositions, 15525 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10110, independent: 9732, independent conditional: 0, independent unconditional: 9732, dependent: 378, dependent conditional: 0, dependent unconditional: 378, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5605, independent: 5500, independent conditional: 0, independent unconditional: 5500, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5605, independent: 5431, independent conditional: 0, independent unconditional: 5431, dependent: 174, dependent conditional: 0, dependent unconditional: 174, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 174, independent: 69, independent conditional: 0, independent unconditional: 69, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 307, independent: 77, independent conditional: 0, independent unconditional: 77, dependent: 230, dependent conditional: 0, dependent unconditional: 230, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10110, independent: 4232, independent conditional: 0, independent unconditional: 4232, dependent: 273, dependent conditional: 0, dependent unconditional: 273, unknown: 5605, unknown conditional: 0, unknown unconditional: 5605] , Statistics on independence cache: Total cache size (in pairs): 373, Positive cache size: 342, Positive conditional cache size: 0, Positive unconditional cache size: 342, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, 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: 736]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int stoppingFlag; [L698] 0 volatile int pendingIo; [L699] 0 volatile int stoppingEvent; [L700] 0 volatile int stopped; [L743] 0 pthread_t t; [L744] 0 pendingIo = 1 [L745] 0 stoppingFlag = 0 [L746] 0 stoppingEvent = 0 [L747] 0 stopped = 0 [L748] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, pthread_create(&t, 0, BCSP_PnpStop, 0)=-2, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L736] 1 stoppingFlag = 1 VAL [arg={0:0}, arg={0:0}, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1, stoppingFlag = 1=50] [L749] CALL 0 BCSP_PnpAdd(0) [L727] 0 int status; [L728] CALL, EXPR 0 BCSP_IoIncrement() [L703] 0 \read(stoppingFlag) [L703] 0 \read(stoppingFlag) [L703] COND TRUE 0 \read(stoppingFlag) [L705] 0 return -1; [L728] RET, EXPR 0 BCSP_IoIncrement() [L728] 0 status = BCSP_IoIncrement() [L729] COND FALSE 0 !(status == 0) [L732] CALL 0 BCSP_IoDecrement() [L720] 0 int pending; VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L736] 1 stoppingFlag = 1 VAL [arg={0:0}, arg={0:0}, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1, stoppingFlag = 1=50] Now there is a data race on ~stoppingFlag~0 between C: if (stoppingFlag) { __VERIFIER_atomic_end(); return -1; } else { pendingIo = pendingIo + 1; } [703-708] and C: stoppingFlag = 1 [736] - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 739]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 745]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 746]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 747]: 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: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 730]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 748]: 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 3 procedures, 215 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 133 IncrementalHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 32 mSDtfsCounter, 133 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=309occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 101 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 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! [2022-11-25 22:13:34,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90505c00-ff25-42a3-bad4-8274446e0dc8/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE