./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/lamport-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_dae927b8-1b74-4d8e-84c9-85233b20873f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae927b8-1b74-4d8e-84c9-85233b20873f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae927b8-1b74-4d8e-84c9-85233b20873f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae927b8-1b74-4d8e-84c9-85233b20873f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/lamport-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae927b8-1b74-4d8e-84c9-85233b20873f/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae927b8-1b74-4d8e-84c9-85233b20873f/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 991793f8d7262fdf8fcd914d5c9fbaf399d7f573a6d3b742f5710da63c18b7e1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 05:19:07,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:19:07,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:19:07,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:19:07,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:19:07,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:19:07,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:19:07,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:19:07,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:19:07,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:19:07,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:19:07,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:19:07,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:19:07,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:19:07,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:19:07,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:19:07,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:19:07,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:19:07,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:19:07,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:19:07,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:19:07,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:19:07,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:19:07,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:19:07,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:19:07,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:19:07,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:19:07,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:19:07,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:19:07,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:19:07,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:19:07,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:19:07,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:19:07,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:19:07,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:19:07,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:19:07,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:19:07,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:19:07,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:19:07,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:19:07,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:19:07,867 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae927b8-1b74-4d8e-84c9-85233b20873f/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 05:19:07,887 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:19:07,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:19:07,888 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:19:07,888 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:19:07,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:19:07,889 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:19:07,889 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:19:07,889 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:19:07,889 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:19:07,890 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:19:07,890 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:19:07,890 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:19:07,890 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:19:07,890 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:19:07,890 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:19:07,891 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:19:07,891 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:19:07,891 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:19:07,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:19:07,892 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:19:07,892 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:19:07,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:19:07,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:19:07,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:19:07,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:19:07,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:19:07,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:19:07,893 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 05:19:07,893 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:19:07,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:19:07,893 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:19:07,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:19:07,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:19:07,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:19:07,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:19:07,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:19:07,894 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:19:07,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:19:07,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:19:07,895 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:19:07,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:19:07,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:19:07,895 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:19:07,895 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_dae927b8-1b74-4d8e-84c9-85233b20873f/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae927b8-1b74-4d8e-84c9-85233b20873f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 991793f8d7262fdf8fcd914d5c9fbaf399d7f573a6d3b742f5710da63c18b7e1 [2022-12-14 05:19:08,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:19:08,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:19:08,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:19:08,119 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:19:08,119 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:19:08,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae927b8-1b74-4d8e-84c9-85233b20873f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-atomic/lamport-b.i [2022-12-14 05:19:10,774 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:19:10,981 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:19:10,981 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae927b8-1b74-4d8e-84c9-85233b20873f/sv-benchmarks/c/pthread-atomic/lamport-b.i [2022-12-14 05:19:10,990 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae927b8-1b74-4d8e-84c9-85233b20873f/bin/utaipan-gh47qXpMRh/data/93578d617/c15055b7f3d541c08c46564362eb6653/FLAGd129bcf3f [2022-12-14 05:19:11,001 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae927b8-1b74-4d8e-84c9-85233b20873f/bin/utaipan-gh47qXpMRh/data/93578d617/c15055b7f3d541c08c46564362eb6653 [2022-12-14 05:19:11,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:19:11,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:19:11,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:19:11,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:19:11,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:19:11,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:19:11" (1/1) ... [2022-12-14 05:19:11,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a435fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:19:11, skipping insertion in model container [2022-12-14 05:19:11,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:19:11" (1/1) ... [2022-12-14 05:19:11,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:19:11,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:19:11,265 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_dae927b8-1b74-4d8e-84c9-85233b20873f/sv-benchmarks/c/pthread-atomic/lamport-b.i[30203,30216] [2022-12-14 05:19:11,268 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_dae927b8-1b74-4d8e-84c9-85233b20873f/sv-benchmarks/c/pthread-atomic/lamport-b.i[30581,30594] [2022-12-14 05:19:11,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:19:11,281 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:19:11,308 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_dae927b8-1b74-4d8e-84c9-85233b20873f/sv-benchmarks/c/pthread-atomic/lamport-b.i[30203,30216] [2022-12-14 05:19:11,311 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_dae927b8-1b74-4d8e-84c9-85233b20873f/sv-benchmarks/c/pthread-atomic/lamport-b.i[30581,30594] [2022-12-14 05:19:11,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:19:11,336 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:19:11,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:19:11 WrapperNode [2022-12-14 05:19:11,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:19:11,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:19:11,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:19:11,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:19:11,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:19:11" (1/1) ... [2022-12-14 05:19:11,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:19:11" (1/1) ... [2022-12-14 05:19:11,366 INFO L138 Inliner]: procedures = 167, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2022-12-14 05:19:11,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:19:11,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:19:11,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:19:11,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:19:11,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:19:11" (1/1) ... [2022-12-14 05:19:11,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:19:11" (1/1) ... [2022-12-14 05:19:11,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:19:11" (1/1) ... [2022-12-14 05:19:11,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:19:11" (1/1) ... [2022-12-14 05:19:11,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:19:11" (1/1) ... [2022-12-14 05:19:11,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:19:11" (1/1) ... [2022-12-14 05:19:11,388 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:19:11" (1/1) ... [2022-12-14 05:19:11,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:19:11" (1/1) ... [2022-12-14 05:19:11,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:19:11,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:19:11,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:19:11,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:19:11,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:19:11" (1/1) ... [2022-12-14 05:19:11,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:19:11,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae927b8-1b74-4d8e-84c9-85233b20873f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:19:11,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae927b8-1b74-4d8e-84c9-85233b20873f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:19:11,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae927b8-1b74-4d8e-84c9-85233b20873f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:19:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 05:19:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-14 05:19:11,454 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-14 05:19:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-14 05:19:11,454 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-14 05:19:11,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 05:19:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:19:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:19:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:19:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:19:11,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:19:11,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:19:11,456 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 05:19:11,565 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:19:11,567 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:19:11,826 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:19:11,835 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:19:11,835 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-14 05:19:11,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:19:11 BoogieIcfgContainer [2022-12-14 05:19:11,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:19:11,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:19:11,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:19:11,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:19:11,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:19:11" (1/3) ... [2022-12-14 05:19:11,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edfeb7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:19:11, skipping insertion in model container [2022-12-14 05:19:11,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:19:11" (2/3) ... [2022-12-14 05:19:11,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5edfeb7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:19:11, skipping insertion in model container [2022-12-14 05:19:11,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:19:11" (3/3) ... [2022-12-14 05:19:11,847 INFO L112 eAbstractionObserver]: Analyzing ICFG lamport-b.i [2022-12-14 05:19:11,856 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 05:19:11,864 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:19:11,864 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-12-14 05:19:11,864 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 05:19:11,943 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 05:19:11,969 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 05:19:11,980 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 232 places, 249 transitions, 514 flow [2022-12-14 05:19:11,982 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 232 places, 249 transitions, 514 flow [2022-12-14 05:19:11,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 249 transitions, 514 flow [2022-12-14 05:19:12,064 INFO L130 PetriNetUnfolder]: 24/247 cut-off events. [2022-12-14 05:19:12,064 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 05:19:12,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 247 events. 24/247 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 738 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 209. Up to 5 conditions per place. [2022-12-14 05:19:12,077 INFO L119 LiptonReduction]: Number of co-enabled transitions 24320 [2022-12-14 05:19:14,190 INFO L134 LiptonReduction]: Checked pairs total: 113542 [2022-12-14 05:19:14,190 INFO L136 LiptonReduction]: Total number of compositions: 125 [2022-12-14 05:19:14,196 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 138 places, 155 transitions, 326 flow [2022-12-14 05:19:14,422 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11101 states, 10574 states have (on average 3.160109703045205) internal successors, (33415), 11100 states have internal predecessors, (33415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:14,436 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:19:14,441 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;@5ffa513, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:19:14,441 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2022-12-14 05:19:14,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 11101 states, 10574 states have (on average 3.160109703045205) internal successors, (33415), 11100 states have internal predecessors, (33415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:14,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 05:19:14,467 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:19:14,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 05:19:14,468 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 05:19:14,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:19:14,472 INFO L85 PathProgramCache]: Analyzing trace with hash 28967101, now seen corresponding path program 1 times [2022-12-14 05:19:14,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:19:14,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061684668] [2022-12-14 05:19:14,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:19:14,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:19:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:19:14,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:19:14,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:19:14,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061684668] [2022-12-14 05:19:14,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061684668] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:19:14,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:19:14,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:19:14,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646613502] [2022-12-14 05:19:14,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:19:14,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 05:19:14,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:19:14,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 05:19:14,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:19:14,655 INFO L87 Difference]: Start difference. First operand has 11101 states, 10574 states have (on average 3.160109703045205) internal successors, (33415), 11100 states have internal predecessors, (33415), 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, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-12-14 05:19:14,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:19:14,805 INFO L93 Difference]: Finished difference Result 7441 states and 19700 transitions. [2022-12-14 05:19:14,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 05:19:14,808 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2022-12-14 05:19:14,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:19:14,849 INFO L225 Difference]: With dead ends: 7441 [2022-12-14 05:19:14,849 INFO L226 Difference]: Without dead ends: 7438 [2022-12-14 05:19:14,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 05:19:14,852 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:19:14,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:19:14,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7438 states. [2022-12-14 05:19:15,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7438 to 7438. [2022-12-14 05:19:15,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7438 states, 7183 states have (on average 2.7416121397744675) internal successors, (19693), 7437 states have internal predecessors, (19693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:15,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7438 states to 7438 states and 19693 transitions. [2022-12-14 05:19:15,092 INFO L78 Accepts]: Start accepts. Automaton has 7438 states and 19693 transitions. Word has length 4 [2022-12-14 05:19:15,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:19:15,093 INFO L495 AbstractCegarLoop]: Abstraction has 7438 states and 19693 transitions. [2022-12-14 05:19:15,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-12-14 05:19:15,093 INFO L276 IsEmpty]: Start isEmpty. Operand 7438 states and 19693 transitions. [2022-12-14 05:19:15,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 05:19:15,093 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:19:15,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 05:19:15,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:19:15,094 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 05:19:15,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:19:15,094 INFO L85 PathProgramCache]: Analyzing trace with hash 2064774219, now seen corresponding path program 1 times [2022-12-14 05:19:15,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:19:15,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047927841] [2022-12-14 05:19:15,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:19:15,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:19:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:19:15,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:19:15,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:19:15,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047927841] [2022-12-14 05:19:15,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047927841] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:19:15,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:19:15,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:19:15,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031231026] [2022-12-14 05:19:15,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:19:15,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:19:15,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:19:15,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:19:15,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:19:15,155 INFO L87 Difference]: Start difference. First operand 7438 states and 19693 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:15,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:19:15,323 INFO L93 Difference]: Finished difference Result 7670 states and 20294 transitions. [2022-12-14 05:19:15,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:19:15,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 05:19:15,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:19:15,362 INFO L225 Difference]: With dead ends: 7670 [2022-12-14 05:19:15,362 INFO L226 Difference]: Without dead ends: 7670 [2022-12-14 05:19:15,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:19:15,363 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 68 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:19:15,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 202 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:19:15,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7670 states. [2022-12-14 05:19:15,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7670 to 7552. [2022-12-14 05:19:15,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7552 states, 7297 states have (on average 2.7393449362751814) internal successors, (19989), 7551 states have internal predecessors, (19989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:15,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7552 states to 7552 states and 19989 transitions. [2022-12-14 05:19:15,570 INFO L78 Accepts]: Start accepts. Automaton has 7552 states and 19989 transitions. Word has length 6 [2022-12-14 05:19:15,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:19:15,570 INFO L495 AbstractCegarLoop]: Abstraction has 7552 states and 19989 transitions. [2022-12-14 05:19:15,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:15,571 INFO L276 IsEmpty]: Start isEmpty. Operand 7552 states and 19989 transitions. [2022-12-14 05:19:15,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 05:19:15,571 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:19:15,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:19:15,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:19:15,572 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 05:19:15,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:19:15,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1346882422, now seen corresponding path program 1 times [2022-12-14 05:19:15,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:19:15,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868078549] [2022-12-14 05:19:15,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:19:15,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:19:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:19:15,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:19:15,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:19:15,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868078549] [2022-12-14 05:19:15,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868078549] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:19:15,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:19:15,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:19:15,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131762629] [2022-12-14 05:19:15,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:19:15,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:19:15,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:19:15,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:19:15,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:19:15,636 INFO L87 Difference]: Start difference. First operand 7552 states and 19989 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:15,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:19:15,795 INFO L93 Difference]: Finished difference Result 7782 states and 20582 transitions. [2022-12-14 05:19:15,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:19:15,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 05:19:15,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:19:15,834 INFO L225 Difference]: With dead ends: 7782 [2022-12-14 05:19:15,834 INFO L226 Difference]: Without dead ends: 7782 [2022-12-14 05:19:15,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:19:15,836 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 68 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:19:15,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 203 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:19:15,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7782 states. [2022-12-14 05:19:16,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7782 to 7664. [2022-12-14 05:19:16,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7664 states, 7410 states have (on average 2.7365721997300945) internal successors, (20278), 7663 states have internal predecessors, (20278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:16,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7664 states to 7664 states and 20278 transitions. [2022-12-14 05:19:16,039 INFO L78 Accepts]: Start accepts. Automaton has 7664 states and 20278 transitions. Word has length 8 [2022-12-14 05:19:16,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:19:16,040 INFO L495 AbstractCegarLoop]: Abstraction has 7664 states and 20278 transitions. [2022-12-14 05:19:16,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:16,041 INFO L276 IsEmpty]: Start isEmpty. Operand 7664 states and 20278 transitions. [2022-12-14 05:19:16,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 05:19:16,042 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:19:16,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:19:16,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:19:16,042 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 05:19:16,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:19:16,043 INFO L85 PathProgramCache]: Analyzing trace with hash -832034785, now seen corresponding path program 1 times [2022-12-14 05:19:16,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:19:16,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884586868] [2022-12-14 05:19:16,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:19:16,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:19:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:19:16,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:19:16,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:19:16,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884586868] [2022-12-14 05:19:16,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884586868] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:19:16,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:19:16,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:19:16,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046967426] [2022-12-14 05:19:16,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:19:16,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:19:16,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:19:16,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:19:16,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:19:16,080 INFO L87 Difference]: Start difference. First operand 7664 states and 20278 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:16,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:19:16,178 INFO L93 Difference]: Finished difference Result 7888 states and 20859 transitions. [2022-12-14 05:19:16,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:19:16,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 05:19:16,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:19:16,210 INFO L225 Difference]: With dead ends: 7888 [2022-12-14 05:19:16,211 INFO L226 Difference]: Without dead ends: 7888 [2022-12-14 05:19:16,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:19:16,212 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 67 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:19:16,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 202 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:19:16,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7888 states. [2022-12-14 05:19:16,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7888 to 7772. [2022-12-14 05:19:16,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7772 states, 7519 states have (on average 2.734273174624285) internal successors, (20559), 7771 states have internal predecessors, (20559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:16,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7772 states to 7772 states and 20559 transitions. [2022-12-14 05:19:16,419 INFO L78 Accepts]: Start accepts. Automaton has 7772 states and 20559 transitions. Word has length 9 [2022-12-14 05:19:16,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:19:16,419 INFO L495 AbstractCegarLoop]: Abstraction has 7772 states and 20559 transitions. [2022-12-14 05:19:16,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:16,419 INFO L276 IsEmpty]: Start isEmpty. Operand 7772 states and 20559 transitions. [2022-12-14 05:19:16,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 05:19:16,420 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:19:16,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:19:16,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 05:19:16,421 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 05:19:16,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:19:16,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1388920975, now seen corresponding path program 1 times [2022-12-14 05:19:16,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:19:16,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422647244] [2022-12-14 05:19:16,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:19:16,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:19:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:19:16,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:19:16,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:19:16,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422647244] [2022-12-14 05:19:16,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422647244] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:19:16,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:19:16,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:19:16,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020583173] [2022-12-14 05:19:16,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:19:16,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:19:16,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:19:16,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:19:16,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:19:16,459 INFO L87 Difference]: Start difference. First operand 7772 states and 20559 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:16,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:19:16,557 INFO L93 Difference]: Finished difference Result 7876 states and 20828 transitions. [2022-12-14 05:19:16,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:19:16,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-12-14 05:19:16,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:19:16,582 INFO L225 Difference]: With dead ends: 7876 [2022-12-14 05:19:16,582 INFO L226 Difference]: Without dead ends: 7876 [2022-12-14 05:19:16,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:19:16,583 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 66 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:19:16,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 201 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:19:16,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7876 states. [2022-12-14 05:19:16,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7876 to 7876. [2022-12-14 05:19:16,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7876 states, 7625 states have (on average 2.7315409836065574) internal successors, (20828), 7875 states have internal predecessors, (20828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:16,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7876 states to 7876 states and 20828 transitions. [2022-12-14 05:19:16,734 INFO L78 Accepts]: Start accepts. Automaton has 7876 states and 20828 transitions. Word has length 11 [2022-12-14 05:19:16,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:19:16,735 INFO L495 AbstractCegarLoop]: Abstraction has 7876 states and 20828 transitions. [2022-12-14 05:19:16,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:16,735 INFO L276 IsEmpty]: Start isEmpty. Operand 7876 states and 20828 transitions. [2022-12-14 05:19:16,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 05:19:16,735 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:19:16,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:19:16,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 05:19:16,736 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 05:19:16,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:19:16,736 INFO L85 PathProgramCache]: Analyzing trace with hash -721482980, now seen corresponding path program 1 times [2022-12-14 05:19:16,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:19:16,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475295286] [2022-12-14 05:19:16,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:19:16,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:19:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:19:16,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:19:16,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:19:16,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475295286] [2022-12-14 05:19:16,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475295286] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:19:16,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:19:16,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:19:16,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082641673] [2022-12-14 05:19:16,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:19:16,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:19:16,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:19:16,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:19:16,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:19:16,768 INFO L87 Difference]: Start difference. First operand 7876 states and 20828 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:16,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:19:16,933 INFO L93 Difference]: Finished difference Result 12122 states and 31527 transitions. [2022-12-14 05:19:16,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:19:16,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-12-14 05:19:16,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:19:16,965 INFO L225 Difference]: With dead ends: 12122 [2022-12-14 05:19:16,965 INFO L226 Difference]: Without dead ends: 12122 [2022-12-14 05:19:16,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:19:16,966 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 115 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:19:16,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 178 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:19:16,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12122 states. [2022-12-14 05:19:17,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12122 to 8244. [2022-12-14 05:19:17,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8244 states, 8025 states have (on average 2.6813707165109033) internal successors, (21518), 8243 states have internal predecessors, (21518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:17,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8244 states to 8244 states and 21518 transitions. [2022-12-14 05:19:17,190 INFO L78 Accepts]: Start accepts. Automaton has 8244 states and 21518 transitions. Word has length 11 [2022-12-14 05:19:17,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:19:17,190 INFO L495 AbstractCegarLoop]: Abstraction has 8244 states and 21518 transitions. [2022-12-14 05:19:17,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:17,190 INFO L276 IsEmpty]: Start isEmpty. Operand 8244 states and 21518 transitions. [2022-12-14 05:19:17,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 05:19:17,192 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:19:17,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:19:17,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 05:19:17,193 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 05:19:17,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:19:17,194 INFO L85 PathProgramCache]: Analyzing trace with hash -613200939, now seen corresponding path program 1 times [2022-12-14 05:19:17,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:19:17,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816883403] [2022-12-14 05:19:17,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:19:17,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:19:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:19:17,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:19:17,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:19:17,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816883403] [2022-12-14 05:19:17,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816883403] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:19:17,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:19:17,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:19:17,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600045229] [2022-12-14 05:19:17,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:19:17,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:19:17,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:19:17,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:19:17,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:19:17,240 INFO L87 Difference]: Start difference. First operand 8244 states and 21518 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:17,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:19:17,372 INFO L93 Difference]: Finished difference Result 10540 states and 27101 transitions. [2022-12-14 05:19:17,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:19:17,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2022-12-14 05:19:17,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:19:17,398 INFO L225 Difference]: With dead ends: 10540 [2022-12-14 05:19:17,398 INFO L226 Difference]: Without dead ends: 10540 [2022-12-14 05:19:17,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:19:17,399 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 110 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:19:17,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 210 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:19:17,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10540 states. [2022-12-14 05:19:17,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10540 to 9928. [2022-12-14 05:19:17,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9928 states, 9722 states have (on average 2.672392511828842) internal successors, (25981), 9927 states have internal predecessors, (25981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:17,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9928 states to 9928 states and 25981 transitions. [2022-12-14 05:19:17,630 INFO L78 Accepts]: Start accepts. Automaton has 9928 states and 25981 transitions. Word has length 15 [2022-12-14 05:19:17,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:19:17,630 INFO L495 AbstractCegarLoop]: Abstraction has 9928 states and 25981 transitions. [2022-12-14 05:19:17,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:17,631 INFO L276 IsEmpty]: Start isEmpty. Operand 9928 states and 25981 transitions. [2022-12-14 05:19:17,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 05:19:17,632 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:19:17,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:19:17,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 05:19:17,632 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 05:19:17,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:19:17,633 INFO L85 PathProgramCache]: Analyzing trace with hash -613163427, now seen corresponding path program 1 times [2022-12-14 05:19:17,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:19:17,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499087136] [2022-12-14 05:19:17,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:19:17,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:19:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:19:17,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:19:17,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:19:17,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499087136] [2022-12-14 05:19:17,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499087136] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:19:17,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:19:17,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:19:17,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384374752] [2022-12-14 05:19:17,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:19:17,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:19:17,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:19:17,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:19:17,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:19:17,665 INFO L87 Difference]: Start difference. First operand 9928 states and 25981 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:17,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:19:17,777 INFO L93 Difference]: Finished difference Result 9998 states and 26153 transitions. [2022-12-14 05:19:17,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:19:17,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2022-12-14 05:19:17,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:19:17,795 INFO L225 Difference]: With dead ends: 9998 [2022-12-14 05:19:17,795 INFO L226 Difference]: Without dead ends: 9998 [2022-12-14 05:19:17,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:19:17,796 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 62 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:19:17,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 173 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:19:17,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9998 states. [2022-12-14 05:19:17,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9998 to 9998. [2022-12-14 05:19:17,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9998 states, 9798 states have (on average 2.6692182077975097) internal successors, (26153), 9997 states have internal predecessors, (26153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:18,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9998 states to 9998 states and 26153 transitions. [2022-12-14 05:19:18,012 INFO L78 Accepts]: Start accepts. Automaton has 9998 states and 26153 transitions. Word has length 15 [2022-12-14 05:19:18,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:19:18,012 INFO L495 AbstractCegarLoop]: Abstraction has 9998 states and 26153 transitions. [2022-12-14 05:19:18,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:19:18,012 INFO L276 IsEmpty]: Start isEmpty. Operand 9998 states and 26153 transitions. [2022-12-14 05:19:18,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 05:19:18,013 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:19:18,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:19:18,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 05:19:18,014 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-14 05:19:18,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:19:18,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1484680064, now seen corresponding path program 1 times [2022-12-14 05:19:18,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:19:18,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262368896] [2022-12-14 05:19:18,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:19:18,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:19:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:19:18,028 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 05:19:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:19:18,050 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 05:19:18,050 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 05:19:18,051 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (63 of 64 remaining) [2022-12-14 05:19:18,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (62 of 64 remaining) [2022-12-14 05:19:18,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (61 of 64 remaining) [2022-12-14 05:19:18,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (60 of 64 remaining) [2022-12-14 05:19:18,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (59 of 64 remaining) [2022-12-14 05:19:18,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (58 of 64 remaining) [2022-12-14 05:19:18,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (57 of 64 remaining) [2022-12-14 05:19:18,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (56 of 64 remaining) [2022-12-14 05:19:18,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (55 of 64 remaining) [2022-12-14 05:19:18,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (54 of 64 remaining) [2022-12-14 05:19:18,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (53 of 64 remaining) [2022-12-14 05:19:18,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (52 of 64 remaining) [2022-12-14 05:19:18,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (51 of 64 remaining) [2022-12-14 05:19:18,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (50 of 64 remaining) [2022-12-14 05:19:18,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (49 of 64 remaining) [2022-12-14 05:19:18,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (48 of 64 remaining) [2022-12-14 05:19:18,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (47 of 64 remaining) [2022-12-14 05:19:18,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (46 of 64 remaining) [2022-12-14 05:19:18,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (45 of 64 remaining) [2022-12-14 05:19:18,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (44 of 64 remaining) [2022-12-14 05:19:18,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 64 remaining) [2022-12-14 05:19:18,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 64 remaining) [2022-12-14 05:19:18,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 64 remaining) [2022-12-14 05:19:18,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 64 remaining) [2022-12-14 05:19:18,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (39 of 64 remaining) [2022-12-14 05:19:18,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (38 of 64 remaining) [2022-12-14 05:19:18,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 64 remaining) [2022-12-14 05:19:18,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (36 of 64 remaining) [2022-12-14 05:19:18,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (35 of 64 remaining) [2022-12-14 05:19:18,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (34 of 64 remaining) [2022-12-14 05:19:18,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (33 of 64 remaining) [2022-12-14 05:19:18,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 64 remaining) [2022-12-14 05:19:18,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (31 of 64 remaining) [2022-12-14 05:19:18,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 64 remaining) [2022-12-14 05:19:18,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 64 remaining) [2022-12-14 05:19:18,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (28 of 64 remaining) [2022-12-14 05:19:18,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (27 of 64 remaining) [2022-12-14 05:19:18,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (26 of 64 remaining) [2022-12-14 05:19:18,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (25 of 64 remaining) [2022-12-14 05:19:18,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (24 of 64 remaining) [2022-12-14 05:19:18,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (23 of 64 remaining) [2022-12-14 05:19:18,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (22 of 64 remaining) [2022-12-14 05:19:18,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (21 of 64 remaining) [2022-12-14 05:19:18,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (20 of 64 remaining) [2022-12-14 05:19:18,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (19 of 64 remaining) [2022-12-14 05:19:18,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (18 of 64 remaining) [2022-12-14 05:19:18,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (17 of 64 remaining) [2022-12-14 05:19:18,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (16 of 64 remaining) [2022-12-14 05:19:18,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (15 of 64 remaining) [2022-12-14 05:19:18,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (14 of 64 remaining) [2022-12-14 05:19:18,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (13 of 64 remaining) [2022-12-14 05:19:18,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 64 remaining) [2022-12-14 05:19:18,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (11 of 64 remaining) [2022-12-14 05:19:18,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (10 of 64 remaining) [2022-12-14 05:19:18,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 64 remaining) [2022-12-14 05:19:18,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (8 of 64 remaining) [2022-12-14 05:19:18,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 64 remaining) [2022-12-14 05:19:18,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 64 remaining) [2022-12-14 05:19:18,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 64 remaining) [2022-12-14 05:19:18,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 64 remaining) [2022-12-14 05:19:18,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 64 remaining) [2022-12-14 05:19:18,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (2 of 64 remaining) [2022-12-14 05:19:18,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (1 of 64 remaining) [2022-12-14 05:19:18,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (0 of 64 remaining) [2022-12-14 05:19:18,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 05:19:18,059 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:19:18,063 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 05:19:18,063 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 05:19:18,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 05:19:18 BasicIcfg [2022-12-14 05:19:18,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 05:19:18,083 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 05:19:18,083 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 05:19:18,083 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 05:19:18,083 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:19:11" (3/4) ... [2022-12-14 05:19:18,085 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 05:19:18,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 05:19:18,086 INFO L158 Benchmark]: Toolchain (without parser) took 7081.34ms. Allocated memory was 123.7MB in the beginning and 740.3MB in the end (delta: 616.6MB). Free memory was 86.3MB in the beginning and 448.2MB in the end (delta: -361.9MB). Peak memory consumption was 257.8MB. Max. memory is 16.1GB. [2022-12-14 05:19:18,086 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 123.7MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:19:18,086 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.23ms. Allocated memory is still 123.7MB. Free memory was 86.0MB in the beginning and 66.0MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 05:19:18,086 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.77ms. Allocated memory is still 123.7MB. Free memory was 66.0MB in the beginning and 63.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:19:18,086 INFO L158 Benchmark]: Boogie Preprocessor took 24.08ms. Allocated memory is still 123.7MB. Free memory was 63.9MB in the beginning and 62.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:19:18,086 INFO L158 Benchmark]: RCFGBuilder took 445.86ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 62.2MB in the beginning and 117.2MB in the end (delta: -55.1MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-12-14 05:19:18,087 INFO L158 Benchmark]: TraceAbstraction took 6242.02ms. Allocated memory was 151.0MB in the beginning and 740.3MB in the end (delta: 589.3MB). Free memory was 116.4MB in the beginning and 448.2MB in the end (delta: -331.7MB). Peak memory consumption was 257.3MB. Max. memory is 16.1GB. [2022-12-14 05:19:18,087 INFO L158 Benchmark]: Witness Printer took 2.36ms. Allocated memory is still 740.3MB. Free memory is still 448.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:19:18,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 123.7MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.23ms. Allocated memory is still 123.7MB. Free memory was 86.0MB in the beginning and 66.0MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.77ms. Allocated memory is still 123.7MB. Free memory was 66.0MB in the beginning and 63.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.08ms. Allocated memory is still 123.7MB. Free memory was 63.9MB in the beginning and 62.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 445.86ms. Allocated memory was 123.7MB in the beginning and 151.0MB in the end (delta: 27.3MB). Free memory was 62.2MB in the beginning and 117.2MB in the end (delta: -55.1MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6242.02ms. Allocated memory was 151.0MB in the beginning and 740.3MB in the end (delta: 589.3MB). Free memory was 116.4MB in the beginning and 448.2MB in the end (delta: -331.7MB). Peak memory consumption was 257.3MB. Max. memory is 16.1GB. * Witness Printer took 2.36ms. Allocated memory is still 740.3MB. Free memory is still 448.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 232 PlacesBefore, 138 PlacesAfterwards, 249 TransitionsBefore, 155 TransitionsAfterwards, 24320 CoEnabledTransitionPairs, 5 FixpointIterations, 29 TrivialSequentialCompositions, 82 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 0 ChoiceCompositions, 125 TotalNumberOfCompositions, 113542 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40844, independent: 39632, independent conditional: 0, independent unconditional: 39632, dependent: 1212, dependent conditional: 0, dependent unconditional: 1212, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14955, independent: 14700, independent conditional: 0, independent unconditional: 14700, dependent: 255, dependent conditional: 0, dependent unconditional: 255, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14955, independent: 14583, independent conditional: 0, independent unconditional: 14583, dependent: 372, dependent conditional: 0, dependent unconditional: 372, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 372, independent: 117, independent conditional: 0, independent unconditional: 117, dependent: 255, dependent conditional: 0, dependent unconditional: 255, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 255, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 196, dependent conditional: 0, dependent unconditional: 196, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 40844, independent: 24932, independent conditional: 0, independent unconditional: 24932, dependent: 957, dependent conditional: 0, dependent unconditional: 957, unknown: 14955, unknown conditional: 0, unknown unconditional: 14955] , Statistics on independence cache: Total cache size (in pairs): 4541, Positive cache size: 4371, Positive conditional cache size: 0, Positive unconditional cache size: 4371, Negative cache size: 170, Negative conditional cache size: 0, Negative unconditional cache size: 170, 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: 690]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int x, y; [L685] 0 int b1, b2; [L686] 0 int X; [L740] 0 pthread_t t1, t2; [L741] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [_={0:0}, b1=0, b2=0, pthread_create(&t1, 0, thr1, 0)=-1, t1={3:0}, t2={5:0}, x=0, X=0, y=0] [L742] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [_={0:0}, _={0:0}, b1=0, b2=0, pthread_create(&t2, 0, thr2, 0)=0, t1={3:0}, t2={5:0}, x=0, X=0, y=0] [L714] COND TRUE 2 1 [L715] 2 b2 = 1 [L716] 2 x = 2 VAL [_={0:0}, _={0:0}, _={0:0}, b1=0, b2=1, x=2, X=0, y=0] [L688] COND TRUE 1 1 [L689] 1 b1 = 1 [L690] 1 x = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, b1=1, b2=1, x=1, X=0, x = 1=51, y=0] [L690] 1 x = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, b1=1, b2=1, X=0, x=1, x = 1=51, x = 2=52, y=0] Now there is a data race on ~x~0 between C: x = 2 [716] and C: x = 1 [690] - UnprovableResult [Line: 733]: 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: 734]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 735]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 736]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: 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: 724]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 727]: 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: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: 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: 691]: 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: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 743]: 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: 741]: 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: 742]: 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, 396 locations, 64 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 556 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 556 mSDsluCounter, 1455 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 492 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1084 IncrementalHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 963 mSDtfsCounter, 1084 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11101occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 4842 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 05:19:18,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dae927b8-1b74-4d8e-84c9-85233b20873f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE