./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9e34fa-c782-4ad0-b3b7-4879cf968683/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9e34fa-c782-4ad0-b3b7-4879cf968683/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9e34fa-c782-4ad0-b3b7-4879cf968683/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9e34fa-c782-4ad0-b3b7-4879cf968683/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9e34fa-c782-4ad0-b3b7-4879cf968683/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9e34fa-c782-4ad0-b3b7-4879cf968683/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 13:39:51,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:39:51,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:39:51,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:39:51,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:39:51,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:39:51,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:39:51,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:39:51,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:39:51,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:39:51,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:39:51,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:39:51,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:39:51,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:39:51,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:39:51,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:39:51,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:39:51,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:39:51,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:39:51,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:39:51,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:39:51,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:39:51,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:39:51,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:39:51,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:39:51,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:39:51,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:39:51,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:39:51,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:39:51,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:39:51,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:39:51,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:39:51,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:39:51,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:39:51,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:39:51,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:39:51,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:39:51,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:39:51,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:39:51,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:39:51,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:39:51,277 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9e34fa-c782-4ad0-b3b7-4879cf968683/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 13:39:51,300 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:39:51,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:39:51,301 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:39:51,301 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:39:51,302 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:39:51,302 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:39:51,302 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:39:51,302 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:39:51,303 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:39:51,303 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:39:51,303 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:39:51,303 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:39:51,303 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:39:51,304 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:39:51,304 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:39:51,304 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:39:51,304 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:39:51,305 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:39:51,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:39:51,306 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 13:39:51,306 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 13:39:51,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:39:51,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 13:39:51,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:39:51,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:39:51,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:39:51,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:39:51,308 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 13:39:51,308 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 13:39:51,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:39:51,308 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:39:51,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:39:51,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:39:51,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:39:51,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:39:51,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:39:51,310 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:39:51,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:39:51,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:39:51,311 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:39:51,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:39:51,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:39:51,311 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:39:51,312 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_0a9e34fa-c782-4ad0-b3b7-4879cf968683/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9e34fa-c782-4ad0-b3b7-4879cf968683/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 [2022-11-23 13:39:51,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:39:51,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:39:51,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:39:51,668 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:39:51,668 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:39:51,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9e34fa-c782-4ad0-b3b7-4879cf968683/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-11-23 13:39:54,748 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:39:55,132 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:39:55,132 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9e34fa-c782-4ad0-b3b7-4879cf968683/sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-11-23 13:39:55,153 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9e34fa-c782-4ad0-b3b7-4879cf968683/bin/utaipan-Q6hlc19bkW/data/b0f3b854e/79bebd01f05e4f9b8af5de995ef8a820/FLAGbaf4f08be [2022-11-23 13:39:55,169 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9e34fa-c782-4ad0-b3b7-4879cf968683/bin/utaipan-Q6hlc19bkW/data/b0f3b854e/79bebd01f05e4f9b8af5de995ef8a820 [2022-11-23 13:39:55,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:39:55,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:39:55,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:39:55,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:39:55,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:39:55,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:39:55" (1/1) ... [2022-11-23 13:39:55,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f37a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:55, skipping insertion in model container [2022-11-23 13:39:55,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:39:55" (1/1) ... [2022-11-23 13:39:55,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:39:55,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:39:56,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:39:56,073 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:39:56,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:39:56,279 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:39:56,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:56 WrapperNode [2022-11-23 13:39:56,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:39:56,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:39:56,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:39:56,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:39:56,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:56" (1/1) ... [2022-11-23 13:39:56,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:56" (1/1) ... [2022-11-23 13:39:56,348 INFO L138 Inliner]: procedures = 524, calls = 59, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 137 [2022-11-23 13:39:56,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:39:56,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:39:56,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:39:56,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:39:56,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:56" (1/1) ... [2022-11-23 13:39:56,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:56" (1/1) ... [2022-11-23 13:39:56,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:56" (1/1) ... [2022-11-23 13:39:56,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:56" (1/1) ... [2022-11-23 13:39:56,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:56" (1/1) ... [2022-11-23 13:39:56,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:56" (1/1) ... [2022-11-23 13:39:56,394 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:56" (1/1) ... [2022-11-23 13:39:56,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:56" (1/1) ... [2022-11-23 13:39:56,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:39:56,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:39:56,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:39:56,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:39:56,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:56" (1/1) ... [2022-11-23 13:39:56,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:39:56,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9e34fa-c782-4ad0-b3b7-4879cf968683/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:39:56,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9e34fa-c782-4ad0-b3b7-4879cf968683/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:39:56,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9e34fa-c782-4ad0-b3b7-4879cf968683/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:39:56,500 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2022-11-23 13:39:56,500 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2022-11-23 13:39:56,501 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-23 13:39:56,501 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2022-11-23 13:39:56,501 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2022-11-23 13:39:56,501 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2022-11-23 13:39:56,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 13:39:56,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 13:39:56,502 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 13:39:56,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:39:56,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:39:56,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:39:56,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 13:39:56,503 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-11-23 13:39:56,503 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 13:39:56,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 13:39:56,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:39:56,505 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 13:39:56,862 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:39:56,864 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:39:57,357 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:39:57,366 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:39:57,367 INFO L300 CfgBuilder]: Removed 19 assume(true) statements. [2022-11-23 13:39:57,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:39:57 BoogieIcfgContainer [2022-11-23 13:39:57,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:39:57,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:39:57,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:39:57,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:39:57,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:39:55" (1/3) ... [2022-11-23 13:39:57,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29137286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:39:57, skipping insertion in model container [2022-11-23 13:39:57,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:39:56" (2/3) ... [2022-11-23 13:39:57,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29137286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:39:57, skipping insertion in model container [2022-11-23 13:39:57,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:39:57" (3/3) ... [2022-11-23 13:39:57,378 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_35-trylock_rc.i [2022-11-23 13:39:57,386 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 13:39:57,398 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:39:57,398 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-23 13:39:57,398 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 13:39:57,502 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-23 13:39:57,541 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 13:39:57,554 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 252 places, 276 transitions, 568 flow [2022-11-23 13:39:57,557 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 252 places, 276 transitions, 568 flow [2022-11-23 13:39:57,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 276 transitions, 568 flow [2022-11-23 13:39:57,665 INFO L130 PetriNetUnfolder]: 31/274 cut-off events. [2022-11-23 13:39:57,666 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 13:39:57,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 274 events. 31/274 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 654 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 173. Up to 5 conditions per place. [2022-11-23 13:39:57,702 INFO L119 LiptonReduction]: Number of co-enabled transitions 19072 [2022-11-23 13:40:11,247 INFO L134 LiptonReduction]: Checked pairs total: 37618 [2022-11-23 13:40:11,247 INFO L136 LiptonReduction]: Total number of compositions: 296 [2022-11-23 13:40:11,256 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67 places, 82 transitions, 180 flow [2022-11-23 13:40:11,390 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2342 states, 2195 states have (on average 3.955353075170843) internal successors, (8682), 2341 states have internal predecessors, (8682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:11,409 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:40:11,416 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;@6ada80b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:40:11,416 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-23 13:40:11,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 2342 states, 2195 states have (on average 3.955353075170843) internal successors, (8682), 2341 states have internal predecessors, (8682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:11,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-23 13:40:11,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:11,440 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-23 13:40:11,441 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-23 13:40:11,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:11,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1136, now seen corresponding path program 1 times [2022-11-23 13:40:11,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:11,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113031877] [2022-11-23 13:40:11,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:11,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:11,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:11,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:11,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113031877] [2022-11-23 13:40:11,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113031877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:11,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:11,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 13:40:11,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912194253] [2022-11-23 13:40:11,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:11,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 13:40:11,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:11,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 13:40:11,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 13:40:11,695 INFO L87 Difference]: Start difference. First operand has 2342 states, 2195 states have (on average 3.955353075170843) internal successors, (8682), 2341 states have internal predecessors, (8682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:11,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:11,829 INFO L93 Difference]: Finished difference Result 1127 states and 3219 transitions. [2022-11-23 13:40:11,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 13:40:11,837 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-23 13:40:11,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:11,869 INFO L225 Difference]: With dead ends: 1127 [2022-11-23 13:40:11,869 INFO L226 Difference]: Without dead ends: 1121 [2022-11-23 13:40:11,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 13:40:11,877 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:11,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:11,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2022-11-23 13:40:11,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1121. [2022-11-23 13:40:11,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1073 states have (on average 2.9878844361602983) internal successors, (3206), 1120 states have internal predecessors, (3206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:11,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 3206 transitions. [2022-11-23 13:40:11,998 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 3206 transitions. Word has length 1 [2022-11-23 13:40:11,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:11,999 INFO L495 AbstractCegarLoop]: Abstraction has 1121 states and 3206 transitions. [2022-11-23 13:40:11,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:11,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 3206 transitions. [2022-11-23 13:40:12,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 13:40:12,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:12,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 13:40:12,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 13:40:12,001 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-23 13:40:12,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:12,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1030218277, now seen corresponding path program 1 times [2022-11-23 13:40:12,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:12,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465428920] [2022-11-23 13:40:12,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:12,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:12,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:12,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:12,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465428920] [2022-11-23 13:40:12,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465428920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:12,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:12,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:40:12,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127694142] [2022-11-23 13:40:12,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:12,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:40:12,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:12,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:40:12,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:40:12,469 INFO L87 Difference]: Start difference. First operand 1121 states and 3206 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) [2022-11-23 13:40:12,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:12,603 INFO L93 Difference]: Finished difference Result 917 states and 2565 transitions. [2022-11-23 13:40:12,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:40:12,604 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 [2022-11-23 13:40:12,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:12,610 INFO L225 Difference]: With dead ends: 917 [2022-11-23 13:40:12,610 INFO L226 Difference]: Without dead ends: 917 [2022-11-23 13:40:12,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:40:12,612 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 32 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:12,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 39 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:12,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-11-23 13:40:12,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 917. [2022-11-23 13:40:12,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 884 states have (on average 2.9015837104072397) internal successors, (2565), 916 states have internal predecessors, (2565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:12,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 2565 transitions. [2022-11-23 13:40:12,647 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 2565 transitions. Word has length 6 [2022-11-23 13:40:12,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:12,648 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 2565 transitions. [2022-11-23 13:40:12,648 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) [2022-11-23 13:40:12,648 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 2565 transitions. [2022-11-23 13:40:12,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 13:40:12,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:12,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:12,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 13:40:12,651 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-23 13:40:12,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:12,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1931581391, now seen corresponding path program 1 times [2022-11-23 13:40:12,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:12,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34911488] [2022-11-23 13:40:12,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:12,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:12,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:12,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:12,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34911488] [2022-11-23 13:40:12,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34911488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:12,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:12,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:40:12,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640208926] [2022-11-23 13:40:12,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:12,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:40:12,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:12,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:40:12,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:40:12,756 INFO L87 Difference]: Start difference. First operand 917 states and 2565 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) [2022-11-23 13:40:12,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:12,910 INFO L93 Difference]: Finished difference Result 1402 states and 3886 transitions. [2022-11-23 13:40:12,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:40:12,911 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 [2022-11-23 13:40:12,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:12,919 INFO L225 Difference]: With dead ends: 1402 [2022-11-23 13:40:12,920 INFO L226 Difference]: Without dead ends: 1402 [2022-11-23 13:40:12,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:40:12,924 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 33 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:12,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 14 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:12,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2022-11-23 13:40:12,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 982. [2022-11-23 13:40:12,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 954 states have (on average 2.8259958071278826) internal successors, (2696), 981 states have internal predecessors, (2696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:12,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 2696 transitions. [2022-11-23 13:40:12,990 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 2696 transitions. Word has length 7 [2022-11-23 13:40:12,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:12,992 INFO L495 AbstractCegarLoop]: Abstraction has 982 states and 2696 transitions. [2022-11-23 13:40:12,992 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) [2022-11-23 13:40:12,992 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 2696 transitions. [2022-11-23 13:40:12,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 13:40:12,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:12,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:12,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 13:40:12,995 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-23 13:40:12,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:12,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1415911845, now seen corresponding path program 1 times [2022-11-23 13:40:12,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:12,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691094816] [2022-11-23 13:40:12,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:12,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:13,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:13,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691094816] [2022-11-23 13:40:13,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691094816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:13,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:13,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:40:13,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679423446] [2022-11-23 13:40:13,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:13,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:40:13,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:13,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:40:13,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:40:13,057 INFO L87 Difference]: Start difference. First operand 982 states and 2696 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:13,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:13,187 INFO L93 Difference]: Finished difference Result 1007 states and 2771 transitions. [2022-11-23 13:40:13,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:40:13,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-23 13:40:13,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:13,196 INFO L225 Difference]: With dead ends: 1007 [2022-11-23 13:40:13,196 INFO L226 Difference]: Without dead ends: 980 [2022-11-23 13:40:13,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:40:13,197 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 21 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:13,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 17 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:13,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2022-11-23 13:40:13,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 980. [2022-11-23 13:40:13,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 957 states have (on average 2.812957157784744) internal successors, (2692), 979 states have internal predecessors, (2692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:13,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 2692 transitions. [2022-11-23 13:40:13,228 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 2692 transitions. Word has length 11 [2022-11-23 13:40:13,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:13,228 INFO L495 AbstractCegarLoop]: Abstraction has 980 states and 2692 transitions. [2022-11-23 13:40:13,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:13,228 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 2692 transitions. [2022-11-23 13:40:13,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 13:40:13,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:13,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:13,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 13:40:13,231 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-23 13:40:13,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:13,232 INFO L85 PathProgramCache]: Analyzing trace with hash 672953918, now seen corresponding path program 1 times [2022-11-23 13:40:13,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:13,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991972176] [2022-11-23 13:40:13,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:13,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:13,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:13,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:13,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991972176] [2022-11-23 13:40:13,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991972176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:13,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:13,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:40:13,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305204455] [2022-11-23 13:40:13,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:13,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:40:13,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:13,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:40:13,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:40:13,520 INFO L87 Difference]: Start difference. First operand 980 states and 2692 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:13,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:13,604 INFO L93 Difference]: Finished difference Result 961 states and 2653 transitions. [2022-11-23 13:40:13,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:40:13,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-11-23 13:40:13,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:13,610 INFO L225 Difference]: With dead ends: 961 [2022-11-23 13:40:13,610 INFO L226 Difference]: Without dead ends: 897 [2022-11-23 13:40:13,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:40:13,611 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 18 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:13,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 34 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:13,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2022-11-23 13:40:13,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 897. [2022-11-23 13:40:13,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 879 states have (on average 2.806598407281001) internal successors, (2467), 896 states have internal predecessors, (2467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:13,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 2467 transitions. [2022-11-23 13:40:13,638 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 2467 transitions. Word has length 12 [2022-11-23 13:40:13,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:13,639 INFO L495 AbstractCegarLoop]: Abstraction has 897 states and 2467 transitions. [2022-11-23 13:40:13,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:13,639 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 2467 transitions. [2022-11-23 13:40:13,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 13:40:13,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:13,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:13,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 13:40:13,641 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting monitor_threadErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-23 13:40:13,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:13,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1105173827, now seen corresponding path program 1 times [2022-11-23 13:40:13,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:13,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024089958] [2022-11-23 13:40:13,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:13,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:13,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:13,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:13,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024089958] [2022-11-23 13:40:13,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024089958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:13,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:13,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:40:13,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904623444] [2022-11-23 13:40:13,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:13,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:40:13,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:13,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:40:13,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:40:13,731 INFO L87 Difference]: Start difference. First operand 897 states and 2467 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:13,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:13,854 INFO L93 Difference]: Finished difference Result 908 states and 2499 transitions. [2022-11-23 13:40:13,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:40:13,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-11-23 13:40:13,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:13,859 INFO L225 Difference]: With dead ends: 908 [2022-11-23 13:40:13,859 INFO L226 Difference]: Without dead ends: 822 [2022-11-23 13:40:13,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:40:13,860 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:13,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 17 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:13,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2022-11-23 13:40:13,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 822. [2022-11-23 13:40:13,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 808 states have (on average 2.8007425742574257) internal successors, (2263), 821 states have internal predecessors, (2263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:13,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 2263 transitions. [2022-11-23 13:40:13,885 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 2263 transitions. Word has length 13 [2022-11-23 13:40:13,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:13,885 INFO L495 AbstractCegarLoop]: Abstraction has 822 states and 2263 transitions. [2022-11-23 13:40:13,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:13,886 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 2263 transitions. [2022-11-23 13:40:13,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 13:40:13,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:13,888 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:13,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 13:40:13,888 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-23 13:40:13,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:13,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1048497473, now seen corresponding path program 1 times [2022-11-23 13:40:13,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:13,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966405139] [2022-11-23 13:40:13,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:13,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:13,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 13:40:13,916 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 13:40:13,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 13:40:13,955 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 13:40:13,955 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 13:40:13,956 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (30 of 31 remaining) [2022-11-23 13:40:13,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2022-11-23 13:40:13,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2022-11-23 13:40:13,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2022-11-23 13:40:13,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2022-11-23 13:40:13,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2022-11-23 13:40:13,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2022-11-23 13:40:13,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2022-11-23 13:40:13,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2022-11-23 13:40:13,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2022-11-23 13:40:13,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2022-11-23 13:40:13,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2022-11-23 13:40:13,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2022-11-23 13:40:13,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2022-11-23 13:40:13,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2022-11-23 13:40:13,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2022-11-23 13:40:13,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2022-11-23 13:40:13,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2022-11-23 13:40:13,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2022-11-23 13:40:13,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 31 remaining) [2022-11-23 13:40:13,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 31 remaining) [2022-11-23 13:40:13,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2022-11-23 13:40:13,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2022-11-23 13:40:13,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2022-11-23 13:40:13,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2022-11-23 13:40:13,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2022-11-23 13:40:13,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2022-11-23 13:40:13,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2022-11-23 13:40:13,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2022-11-23 13:40:13,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2022-11-23 13:40:13,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2022-11-23 13:40:13,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 13:40:13,967 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:13,973 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 13:40:13,974 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 13:40:14,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:40:14 BasicIcfg [2022-11-23 13:40:14,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 13:40:14,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 13:40:14,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 13:40:14,017 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 13:40:14,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:39:57" (3/4) ... [2022-11-23 13:40:14,020 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 13:40:14,020 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 13:40:14,021 INFO L158 Benchmark]: Toolchain (without parser) took 18845.39ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 145.9MB in the beginning and 121.0MB in the end (delta: 24.9MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. [2022-11-23 13:40:14,021 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 130.0MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:40:14,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1100.29ms. Allocated memory is still 180.4MB. Free memory was 145.9MB in the beginning and 96.0MB in the end (delta: 49.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-11-23 13:40:14,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.14ms. Allocated memory is still 180.4MB. Free memory was 96.0MB in the beginning and 92.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 13:40:14,022 INFO L158 Benchmark]: Boogie Preprocessor took 53.16ms. Allocated memory is still 180.4MB. Free memory was 92.7MB in the beginning and 89.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:40:14,022 INFO L158 Benchmark]: RCFGBuilder took 966.57ms. Allocated memory is still 180.4MB. Free memory was 89.7MB in the beginning and 142.2MB in the end (delta: -52.5MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2022-11-23 13:40:14,023 INFO L158 Benchmark]: TraceAbstraction took 16644.57ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 141.2MB in the beginning and 121.0MB in the end (delta: 20.2MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2022-11-23 13:40:14,023 INFO L158 Benchmark]: Witness Printer took 3.89ms. Allocated memory is still 218.1MB. Free memory is still 121.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:40:14,025 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 130.0MB. Free memory is still 98.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1100.29ms. Allocated memory is still 180.4MB. Free memory was 145.9MB in the beginning and 96.0MB in the end (delta: 49.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.14ms. Allocated memory is still 180.4MB. Free memory was 96.0MB in the beginning and 92.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.16ms. Allocated memory is still 180.4MB. Free memory was 92.7MB in the beginning and 89.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 966.57ms. Allocated memory is still 180.4MB. Free memory was 89.7MB in the beginning and 142.2MB in the end (delta: -52.5MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * TraceAbstraction took 16644.57ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 141.2MB in the beginning and 121.0MB in the end (delta: 20.2MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. * Witness Printer took 3.89ms. Allocated memory is still 218.1MB. Free memory is still 121.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.7s, 252 PlacesBefore, 67 PlacesAfterwards, 276 TransitionsBefore, 82 TransitionsAfterwards, 19072 CoEnabledTransitionPairs, 7 FixpointIterations, 77 TrivialSequentialCompositions, 162 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 37 ConcurrentYvCompositions, 9 ChoiceCompositions, 296 TotalNumberOfCompositions, 37618 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22527, independent: 22151, independent conditional: 0, independent unconditional: 22151, dependent: 376, dependent conditional: 0, dependent unconditional: 376, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14091, independent: 14000, independent conditional: 0, independent unconditional: 14000, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14091, independent: 13802, independent conditional: 0, independent unconditional: 13802, dependent: 289, dependent conditional: 0, dependent unconditional: 289, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 289, independent: 198, independent conditional: 0, independent unconditional: 198, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 349, independent: 176, independent conditional: 0, independent unconditional: 176, dependent: 173, dependent conditional: 0, dependent unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22527, independent: 8151, independent conditional: 0, independent unconditional: 8151, dependent: 285, dependent conditional: 0, dependent unconditional: 285, unknown: 14091, unknown conditional: 0, unknown unconditional: 14091] , Statistics on independence cache: Total cache size (in pairs): 868, Positive cache size: 833, Positive conditional cache size: 0, Positive unconditional cache size: 833, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, 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: 1808]: Data race detected Data race detected The following path leads to a data race: [L1797] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1798] 0 long counter; [L1799] 0 time_t end_time; [L1836] 0 int status; [L1837] 0 pthread_t counter_thread_id; [L1838] 0 pthread_t monitor_thread_id; [L1839] 0 end_time = time (((void *)0)) + 60 [L1840] EXPR, FCALL, FORK 0 pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) VAL [#in~arg={0:0}, #in~argv={1150:1151}, argc=1152, argv={1150:1151}, counter=0, counter_thread_id={27:0}, end_time=1, monitor_thread_id={26:0}, mutex={25:0}, pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0))=-2, unknown-#in~argc-unknown=1152] [L1801] 1 int status; [L1802] 1 int spin; VAL [#in~arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}] [L1803] 1 time (((void *)0)) < end_time VAL [#in~arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}, time (((void *)0))=0] [L1840] 0 status = pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) [L1841] COND FALSE 0 !(status != 0) [L1843] FCALL, FORK 0 pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0)) VAL [#in~arg={0:0}, #in~arg={0:0}, #in~argv={1150:1151}, arg={0:0}, argc=1152, argv={1150:1151}, counter=0, counter_thread_id={27:0}, end_time=1, monitor_thread_id={26:0}, mutex={25:0}, pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0))=-1, status=0, time (((void *)0))=0, unknown-#in~argc-unknown=1152] [L1803] 1 time (((void *)0)) < end_time [L1803] COND TRUE 1 time (((void *)0)) < end_time [L1804] 1 status = pthread_mutex_lock (&mutex) [L1805] COND FALSE 1 !(status != 0) [L1807] 1 spin = 0 VAL [#in~arg={0:0}, #in~arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}, spin=0, status=0] [L1807] COND TRUE 1 spin < 10000000 [L1808] 1 counter++ VAL [#in~arg={0:0}, #in~arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}, spin=0, status=0] [L1817] 2 int status; [L1818] 2 int misses = 0; VAL [#in~arg={0:0}, #in~arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=0] [L1819] 2 time (((void *)0)) < end_time [L1819] COND TRUE 2 time (((void *)0)) < end_time [L1821] 2 status = pthread_mutex_trylock (&mutex) [L1822] COND FALSE 2 !(status != 16) VAL [#in~arg={0:0}, #in~arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=16, status=0] [L1808] 1 counter++ VAL [#in~arg={0:0}, #in~arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=0, counter++=1153, end_time=1, misses=0, mutex={25:0}, spin=0, status=16, status=0] [L1830] 2 counter++ VAL [#in~arg={0:0}, #in~arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=0, counter++=1153, end_time=1, misses=0, mutex={25:0}, spin=0, status=16, status=0] [L1808] 1 counter++ VAL [#in~arg={0:0}, #in~arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=0, counter++=1153, end_time=1, misses=0, mutex={25:0}, spin=0, status=16, status=0] Now there is a data race on ~counter~0 between C: counter++ [1830] and C: counter++ [1808] - UnprovableResult [Line: 1819]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1824]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1828]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1803]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1806]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1811]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1839]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1842]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1845]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1846]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1848]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1849]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1851]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1843]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1840]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 359 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 16.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 121 mSDsluCounter, 134 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 439 IncrementalHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 99 mSDtfsCounter, 439 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2342occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 420 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-23 13:40:14,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a9e34fa-c782-4ad0-b3b7-4879cf968683/bin/utaipan-Q6hlc19bkW/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