./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/qw2004-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/qw2004-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/bin/utaipan-I9t0OCRTmS --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 a0f042164bf78d3595348b117153fa7346585efa21c060e488a9879023a64e1b --- 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-8393723 [2022-11-19 07:28:15,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:28:15,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:28:15,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:28:15,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:28:15,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:28:15,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:28:15,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:28:15,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:28:15,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:28:15,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:28:15,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:28:15,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:28:15,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:28:15,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:28:15,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:28:15,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:28:15,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:28:15,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:28:15,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:28:15,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:28:15,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:28:15,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:28:15,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:28:15,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:28:15,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:28:15,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:28:15,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:28:15,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:28:15,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:28:15,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:28:15,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:28:15,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:28:15,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:28:15,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:28:15,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:28:15,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:28:15,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:28:15,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:28:15,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:28:15,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:28:15,150 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-19 07:28:15,173 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:28:15,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:28:15,174 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:28:15,175 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:28:15,175 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:28:15,176 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:28:15,176 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:28:15,176 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:28:15,177 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:28:15,177 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:28:15,177 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:28:15,177 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:28:15,178 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:28:15,178 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:28:15,178 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:28:15,178 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:28:15,179 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:28:15,179 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:28:15,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:28:15,180 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:28:15,180 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:28:15,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:28:15,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:28:15,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:28:15,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:28:15,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:28:15,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:28:15,182 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-19 07:28:15,183 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:28:15,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:28:15,183 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:28:15,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:28:15,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:28:15,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:28:15,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:28:15,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:28:15,184 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:28:15,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:28:15,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:28:15,185 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:28:15,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:28:15,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:28:15,186 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:28:15,186 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_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0f042164bf78d3595348b117153fa7346585efa21c060e488a9879023a64e1b [2022-11-19 07:28:15,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:28:15,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:28:15,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:28:15,499 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:28:15,500 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:28:15,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/pthread-lit/qw2004-2.i [2022-11-19 07:28:15,579 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/bin/utaipan-I9t0OCRTmS/data/74d2b2b20/bcbc5d7da2ef4b17a49baa7aa90e4602/FLAGc5991ce17 [2022-11-19 07:28:16,181 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:28:16,181 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/sv-benchmarks/c/pthread-lit/qw2004-2.i [2022-11-19 07:28:16,211 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/bin/utaipan-I9t0OCRTmS/data/74d2b2b20/bcbc5d7da2ef4b17a49baa7aa90e4602/FLAGc5991ce17 [2022-11-19 07:28:16,426 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/bin/utaipan-I9t0OCRTmS/data/74d2b2b20/bcbc5d7da2ef4b17a49baa7aa90e4602 [2022-11-19 07:28:16,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:28:16,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:28:16,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:28:16,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:28:16,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:28:16,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:28:16" (1/1) ... [2022-11-19 07:28:16,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e22af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:16, skipping insertion in model container [2022-11-19 07:28:16,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:28:16" (1/1) ... [2022-11-19 07:28:16,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:28:16,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:28:16,974 WARN L234 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_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/sv-benchmarks/c/pthread-lit/qw2004-2.i[30003,30016] [2022-11-19 07:28:17,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:28:17,037 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:28:17,104 WARN L234 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_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/sv-benchmarks/c/pthread-lit/qw2004-2.i[30003,30016] [2022-11-19 07:28:17,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:28:17,162 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:28:17,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:17 WrapperNode [2022-11-19 07:28:17,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:28:17,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:28:17,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:28:17,165 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:28:17,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:17" (1/1) ... [2022-11-19 07:28:17,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:17" (1/1) ... [2022-11-19 07:28:17,242 INFO L138 Inliner]: procedures = 175, calls = 32, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 172 [2022-11-19 07:28:17,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:28:17,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:28:17,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:28:17,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:28:17,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:17" (1/1) ... [2022-11-19 07:28:17,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:17" (1/1) ... [2022-11-19 07:28:17,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:17" (1/1) ... [2022-11-19 07:28:17,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:17" (1/1) ... [2022-11-19 07:28:17,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:17" (1/1) ... [2022-11-19 07:28:17,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:17" (1/1) ... [2022-11-19 07:28:17,277 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:17" (1/1) ... [2022-11-19 07:28:17,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:17" (1/1) ... [2022-11-19 07:28:17,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:28:17,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:28:17,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:28:17,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:28:17,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:17" (1/1) ... [2022-11-19 07:28:17,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:28:17,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:28:17,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:28:17,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:28:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2022-11-19 07:28:17,388 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2022-11-19 07:28:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:28:17,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-19 07:28:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:28:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:28:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:28:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:28:17,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-19 07:28:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:28:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:28:17,392 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 07:28:17,610 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:28:17,612 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:28:17,878 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:28:17,974 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:28:17,974 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:28:17,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:28:17 BoogieIcfgContainer [2022-11-19 07:28:17,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:28:17,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:28:17,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:28:17,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:28:17,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:28:16" (1/3) ... [2022-11-19 07:28:17,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf9aa82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:28:17, skipping insertion in model container [2022-11-19 07:28:17,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:28:17" (2/3) ... [2022-11-19 07:28:17,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf9aa82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:28:17, skipping insertion in model container [2022-11-19 07:28:17,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:28:17" (3/3) ... [2022-11-19 07:28:17,985 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-2.i [2022-11-19 07:28:17,993 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 07:28:18,003 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:28:18,003 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-11-19 07:28:18,004 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 07:28:18,072 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 07:28:18,114 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 07:28:18,136 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 159 transitions, 323 flow [2022-11-19 07:28:18,146 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 159 transitions, 323 flow [2022-11-19 07:28:18,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 159 transitions, 323 flow [2022-11-19 07:28:18,212 INFO L130 PetriNetUnfolder]: 6/158 cut-off events. [2022-11-19 07:28:18,212 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 07:28:18,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 158 events. 6/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 202 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2022-11-19 07:28:18,225 INFO L119 LiptonReduction]: Number of co-enabled transitions 5964 [2022-11-19 07:28:22,654 INFO L134 LiptonReduction]: Checked pairs total: 8793 [2022-11-19 07:28:22,655 INFO L136 LiptonReduction]: Total number of compositions: 193 [2022-11-19 07:28:22,663 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 36 transitions, 77 flow [2022-11-19 07:28:22,689 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 213 states, 137 states have (on average 3.0364963503649633) internal successors, (416), 212 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:22,707 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:28:22,714 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;@729fae76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:28:22,714 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-11-19 07:28:22,717 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 137 states have (on average 3.0364963503649633) internal successors, (416), 212 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:22,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 07:28:22,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:22,723 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 07:28:22,723 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-19 07:28:22,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:22,728 INFO L85 PathProgramCache]: Analyzing trace with hash 710, now seen corresponding path program 1 times [2022-11-19 07:28:22,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:22,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302132953] [2022-11-19 07:28:22,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:22,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:22,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:28:22,849 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:22,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302132953] [2022-11-19 07:28:22,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302132953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:22,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:22,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 07:28:22,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808429342] [2022-11-19 07:28:22,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:22,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:28:22,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:22,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:28:22,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:28:22,881 INFO L87 Difference]: Start difference. First operand has 213 states, 137 states have (on average 3.0364963503649633) internal successors, (416), 212 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:22,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:22,918 INFO L93 Difference]: Finished difference Result 64 states and 123 transitions. [2022-11-19 07:28:22,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:28:22,920 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-19 07:28:22,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:22,929 INFO L225 Difference]: With dead ends: 64 [2022-11-19 07:28:22,929 INFO L226 Difference]: Without dead ends: 62 [2022-11-19 07:28:22,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:28:22,933 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:22,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:28:22,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-19 07:28:22,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-19 07:28:22,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 59 states have (on average 2.016949152542373) internal successors, (119), 61 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:22,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 119 transitions. [2022-11-19 07:28:22,971 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 119 transitions. Word has length 1 [2022-11-19 07:28:22,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:22,971 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 119 transitions. [2022-11-19 07:28:22,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:22,972 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 119 transitions. [2022-11-19 07:28:22,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:28:22,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:22,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:28:22,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:28:22,973 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-19 07:28:22,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:22,974 INFO L85 PathProgramCache]: Analyzing trace with hash 672024987, now seen corresponding path program 1 times [2022-11-19 07:28:22,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:22,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725125876] [2022-11-19 07:28:22,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:22,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:23,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:28:23,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:23,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725125876] [2022-11-19 07:28:23,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725125876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:23,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:23,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:28:23,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823585969] [2022-11-19 07:28:23,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:23,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:28:23,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:23,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:28:23,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:28:23,155 INFO L87 Difference]: Start difference. First operand 62 states and 119 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:23,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:23,224 INFO L93 Difference]: Finished difference Result 107 states and 199 transitions. [2022-11-19 07:28:23,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:28:23,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 07:28:23,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:23,233 INFO L225 Difference]: With dead ends: 107 [2022-11-19 07:28:23,233 INFO L226 Difference]: Without dead ends: 107 [2022-11-19 07:28:23,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:28:23,237 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:23,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:28:23,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-19 07:28:23,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 62. [2022-11-19 07:28:23,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 59 states have (on average 2.0) internal successors, (118), 61 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:23,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 118 transitions. [2022-11-19 07:28:23,252 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 118 transitions. Word has length 5 [2022-11-19 07:28:23,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:23,252 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 118 transitions. [2022-11-19 07:28:23,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:23,253 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 118 transitions. [2022-11-19 07:28:23,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 07:28:23,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:23,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 07:28:23,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:28:23,254 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-19 07:28:23,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:23,254 INFO L85 PathProgramCache]: Analyzing trace with hash -642586391, now seen corresponding path program 1 times [2022-11-19 07:28:23,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:23,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312238546] [2022-11-19 07:28:23,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:23,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:23,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:28:23,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:23,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312238546] [2022-11-19 07:28:23,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312238546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:23,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:23,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:28:23,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120331480] [2022-11-19 07:28:23,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:23,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:28:23,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:23,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:28:23,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:28:23,361 INFO L87 Difference]: Start difference. First operand 62 states and 118 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:23,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:23,425 INFO L93 Difference]: Finished difference Result 61 states and 112 transitions. [2022-11-19 07:28:23,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:28:23,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-19 07:28:23,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:23,427 INFO L225 Difference]: With dead ends: 61 [2022-11-19 07:28:23,427 INFO L226 Difference]: Without dead ends: 56 [2022-11-19 07:28:23,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:28:23,429 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:23,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:28:23,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-19 07:28:23,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-19 07:28:23,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 52 states have (on average 1.9615384615384615) internal successors, (102), 55 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:23,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 102 transitions. [2022-11-19 07:28:23,446 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 102 transitions. Word has length 6 [2022-11-19 07:28:23,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:23,447 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 102 transitions. [2022-11-19 07:28:23,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:23,448 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 102 transitions. [2022-11-19 07:28:23,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 07:28:23,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:23,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:23,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:28:23,450 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-19 07:28:23,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:23,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1553667096, now seen corresponding path program 1 times [2022-11-19 07:28:23,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:23,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116641565] [2022-11-19 07:28:23,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:23,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:23,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:23,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:28:23,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:23,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116641565] [2022-11-19 07:28:23,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116641565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:23,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:23,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:28:23,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463602364] [2022-11-19 07:28:23,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:23,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:28:23,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:23,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:28:23,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:28:23,533 INFO L87 Difference]: Start difference. First operand 56 states and 102 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:23,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:23,589 INFO L93 Difference]: Finished difference Result 53 states and 92 transitions. [2022-11-19 07:28:23,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:28:23,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-19 07:28:23,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:23,592 INFO L225 Difference]: With dead ends: 53 [2022-11-19 07:28:23,592 INFO L226 Difference]: Without dead ends: 38 [2022-11-19 07:28:23,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:28:23,595 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:23,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:28:23,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-19 07:28:23,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-19 07:28:23,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.7428571428571429) internal successors, (61), 37 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:23,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2022-11-19 07:28:23,616 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 7 [2022-11-19 07:28:23,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:23,616 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2022-11-19 07:28:23,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:23,617 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2022-11-19 07:28:23,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:28:23,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:23,617 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:23,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:28:23,618 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-19 07:28:23,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:23,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1555099950, now seen corresponding path program 1 times [2022-11-19 07:28:23,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:23,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649102161] [2022-11-19 07:28:23,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:23,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:23,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:28:23,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:23,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649102161] [2022-11-19 07:28:23,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649102161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:23,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:23,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:28:23,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307922395] [2022-11-19 07:28:23,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:23,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:28:23,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:23,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:28:23,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:28:23,747 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:23,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:23,788 INFO L93 Difference]: Finished difference Result 42 states and 65 transitions. [2022-11-19 07:28:23,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:28:23,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 07:28:23,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:23,790 INFO L225 Difference]: With dead ends: 42 [2022-11-19 07:28:23,790 INFO L226 Difference]: Without dead ends: 42 [2022-11-19 07:28:23,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:28:23,791 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:23,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:28:23,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-19 07:28:23,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-19 07:28:23,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.6666666666666667) internal successors, (65), 41 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:23,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 65 transitions. [2022-11-19 07:28:23,795 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 65 transitions. Word has length 9 [2022-11-19 07:28:23,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:23,795 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 65 transitions. [2022-11-19 07:28:23,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:23,796 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 65 transitions. [2022-11-19 07:28:23,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:28:23,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:23,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:23,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:28:23,797 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-19 07:28:23,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:23,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1553824846, now seen corresponding path program 1 times [2022-11-19 07:28:23,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:23,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012784612] [2022-11-19 07:28:23,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:23,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:23,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:28:23,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:23,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012784612] [2022-11-19 07:28:23,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012784612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:23,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:23,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:28:23,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572025699] [2022-11-19 07:28:23,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:23,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:28:23,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:23,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:28:23,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:28:23,912 INFO L87 Difference]: Start difference. First operand 42 states and 65 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:23,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:23,984 INFO L93 Difference]: Finished difference Result 45 states and 68 transitions. [2022-11-19 07:28:23,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:28:23,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-19 07:28:23,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:23,985 INFO L225 Difference]: With dead ends: 45 [2022-11-19 07:28:23,985 INFO L226 Difference]: Without dead ends: 38 [2022-11-19 07:28:23,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:28:23,987 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:23,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:28:23,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-19 07:28:23,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-19 07:28:23,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 37 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:23,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 57 transitions. [2022-11-19 07:28:23,996 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 57 transitions. Word has length 9 [2022-11-19 07:28:23,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:23,997 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 57 transitions. [2022-11-19 07:28:23,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:23,997 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 57 transitions. [2022-11-19 07:28:23,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:28:23,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:23,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:23,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:28:23,999 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-19 07:28:24,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:24,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1776602337, now seen corresponding path program 1 times [2022-11-19 07:28:24,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:24,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643513240] [2022-11-19 07:28:24,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:24,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:28:24,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:28:24,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:28:24,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643513240] [2022-11-19 07:28:24,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643513240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:28:24,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:28:24,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:28:24,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395285345] [2022-11-19 07:28:24,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:28:24,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:28:24,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:28:24,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:28:24,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:28:24,062 INFO L87 Difference]: Start difference. First operand 38 states and 57 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) 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) [2022-11-19 07:28:24,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:24,094 INFO L93 Difference]: Finished difference Result 38 states and 53 transitions. [2022-11-19 07:28:24,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:28:24,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) 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 [2022-11-19 07:28:24,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:24,095 INFO L225 Difference]: With dead ends: 38 [2022-11-19 07:28:24,096 INFO L226 Difference]: Without dead ends: 34 [2022-11-19 07:28:24,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:28:24,097 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:24,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:28:24,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-19 07:28:24,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-19 07:28:24,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 31 states have (on average 1.5806451612903225) internal successors, (49), 33 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:24,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 49 transitions. [2022-11-19 07:28:24,100 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 49 transitions. Word has length 11 [2022-11-19 07:28:24,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:24,101 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 49 transitions. [2022-11-19 07:28:24,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) 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) [2022-11-19 07:28:24,101 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 49 transitions. [2022-11-19 07:28:24,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:28:24,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:24,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:24,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:28:24,102 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-19 07:28:24,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:24,103 INFO L85 PathProgramCache]: Analyzing trace with hash -553426397, now seen corresponding path program 2 times [2022-11-19 07:28:24,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:28:24,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652772428] [2022-11-19 07:28:24,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:28:24,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:28:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:28:24,118 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:28:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:28:24,150 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:28:24,150 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:28:24,151 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 27 remaining) [2022-11-19 07:28:24,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2022-11-19 07:28:24,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2022-11-19 07:28:24,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2022-11-19 07:28:24,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2022-11-19 07:28:24,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2022-11-19 07:28:24,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2022-11-19 07:28:24,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2022-11-19 07:28:24,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2022-11-19 07:28:24,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2022-11-19 07:28:24,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2022-11-19 07:28:24,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2022-11-19 07:28:24,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2022-11-19 07:28:24,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2022-11-19 07:28:24,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2022-11-19 07:28:24,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2022-11-19 07:28:24,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2022-11-19 07:28:24,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2022-11-19 07:28:24,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2022-11-19 07:28:24,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 27 remaining) [2022-11-19 07:28:24,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2022-11-19 07:28:24,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2022-11-19 07:28:24,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2022-11-19 07:28:24,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2022-11-19 07:28:24,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2022-11-19 07:28:24,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2022-11-19 07:28:24,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2022-11-19 07:28:24,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:28:24,163 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-11-19 07:28:24,171 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 07:28:24,171 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:28:24,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:28:24 BasicIcfg [2022-11-19 07:28:24,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:28:24,206 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:28:24,206 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:28:24,206 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:28:24,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:28:17" (3/4) ... [2022-11-19 07:28:24,210 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:28:24,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:28:24,211 INFO L158 Benchmark]: Toolchain (without parser) took 7780.64ms. Allocated memory was 111.1MB in the beginning and 148.9MB in the end (delta: 37.7MB). Free memory was 81.4MB in the beginning and 91.0MB in the end (delta: -9.6MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2022-11-19 07:28:24,211 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory is still 36.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:28:24,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 731.50ms. Allocated memory is still 111.1MB. Free memory was 81.0MB in the beginning and 77.0MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:28:24,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.05ms. Allocated memory is still 111.1MB. Free memory was 77.0MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:28:24,212 INFO L158 Benchmark]: Boogie Preprocessor took 38.03ms. Allocated memory is still 111.1MB. Free memory was 74.9MB in the beginning and 73.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:28:24,212 INFO L158 Benchmark]: RCFGBuilder took 694.88ms. Allocated memory is still 111.1MB. Free memory was 73.3MB in the beginning and 85.6MB in the end (delta: -12.3MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2022-11-19 07:28:24,213 INFO L158 Benchmark]: TraceAbstraction took 6227.10ms. Allocated memory was 111.1MB in the beginning and 148.9MB in the end (delta: 37.7MB). Free memory was 84.9MB in the beginning and 91.0MB in the end (delta: -6.1MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2022-11-19 07:28:24,213 INFO L158 Benchmark]: Witness Printer took 4.31ms. Allocated memory is still 148.9MB. Free memory was 91.0MB in the beginning and 91.0MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:28:24,215 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory is still 36.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 731.50ms. Allocated memory is still 111.1MB. Free memory was 81.0MB in the beginning and 77.0MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.05ms. Allocated memory is still 111.1MB. Free memory was 77.0MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.03ms. Allocated memory is still 111.1MB. Free memory was 74.9MB in the beginning and 73.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 694.88ms. Allocated memory is still 111.1MB. Free memory was 73.3MB in the beginning and 85.6MB in the end (delta: -12.3MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * TraceAbstraction took 6227.10ms. Allocated memory was 111.1MB in the beginning and 148.9MB in the end (delta: 37.7MB). Free memory was 84.9MB in the beginning and 91.0MB in the end (delta: -6.1MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Witness Printer took 4.31ms. Allocated memory is still 148.9MB. Free memory was 91.0MB in the beginning and 91.0MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 157 PlacesBefore, 38 PlacesAfterwards, 159 TransitionsBefore, 36 TransitionsAfterwards, 5964 CoEnabledTransitionPairs, 8 FixpointIterations, 55 TrivialSequentialCompositions, 115 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 4 ChoiceCompositions, 193 TotalNumberOfCompositions, 8793 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6501, independent: 6319, independent conditional: 0, independent unconditional: 6319, dependent: 182, dependent conditional: 0, dependent unconditional: 182, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4446, independent: 4386, independent conditional: 0, independent unconditional: 4386, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4446, independent: 4313, independent conditional: 0, independent unconditional: 4313, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 133, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 282, independent: 110, independent conditional: 0, independent unconditional: 110, dependent: 172, dependent conditional: 0, dependent unconditional: 172, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6501, independent: 1933, independent conditional: 0, independent unconditional: 1933, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 4446, unknown conditional: 0, unknown unconditional: 4446] , Statistics on independence cache: Total cache size (in pairs): 142, Positive cache size: 125, Positive conditional cache size: 0, Positive unconditional cache size: 125, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, 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: 737]: Data race detected Data race detected The following path leads to a data race: [L700] 0 volatile int stopped; [L699] 0 volatile int stoppingEvent; [L698] 0 volatile int pendingIo; [L697] 0 volatile int stoppingFlag; [L755] 0 pthread_t t; [L756] 0 pendingIo = 1 [L757] 0 stoppingFlag = 0 [L758] 0 stoppingEvent = 0 [L759] 0 stopped = 0 [L760] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, pthread_create(&t, 0, BCSP_PnpStop, 0)=-1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L761] CALL 0 BCSP_PnpAdd(0) [L734] 0 int status; [L735] CALL, EXPR 0 BCSP_IoIncrement() [L703] 0 int lsf = stoppingFlag; [L705] COND FALSE 0 !(\read(lsf)) VAL [lsf=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L744] 1 stoppingFlag = 1 [L746] CALL 1 BCSP_IoDecrement() [L725] 1 int pending; [L726] CALL, EXPR 1 dec() [L719] 1 pendingIo-- [L720] 1 int tmp = pendingIo; [L722] 1 return tmp; [L726] RET, EXPR 1 dec() [L726] 1 pending = dec() [L709] 0 int lp = pendingIo; VAL [lp=0, lsf=0, pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L712] 0 pendingIo = lp + 1 [L715] 0 return 0; [L735] RET, EXPR 0 BCSP_IoIncrement() [L735] 0 status = BCSP_IoIncrement() [L736] COND TRUE 0 status == 0 [L737] 0 !stopped VAL [arg={0:0}, arg={0:0}, pendingIo=1, status=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L727] COND TRUE 1 pending == 0 [L729] 1 stoppingEvent = 1 [L746] RET 1 BCSP_IoDecrement() [L748] 1 int lse = stoppingEvent; [L750] CALL 1 assume_abort_if_not(lse) [L686] COND FALSE 1 !(!cond) [L750] RET 1 assume_abort_if_not(lse) [L751] 1 stopped = 1 VAL [arg={0:0}, arg={0:0}, lse=1, pendingIo=1, stopped=1, stopped = 1=49, stoppingEvent=1, stoppingFlag=1] [L737] 0 !stopped VAL [arg={0:0}, arg={0:0}, pendingIo=1, status=0, stopped=1, stoppingEvent=1, stoppingFlag=1] Now there is a data race on ~stopped~0 between C: stopped = 1 [751] and C: !stopped [737] - 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: 719]: 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: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 751]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 756]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 757]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 758]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: 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: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 196 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 52 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 262 IncrementalHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 14 mSDtfsCounter, 262 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=213occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 45 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-19 07:28:24,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8bb5dc7-4724-4c44-b8c2-d8353fecc475/bin/utaipan-I9t0OCRTmS/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