./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64032778-3b19-499c-a5e9-79e98edcf4b7/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64032778-3b19-499c-a5e9-79e98edcf4b7/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64032778-3b19-499c-a5e9-79e98edcf4b7/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64032778-3b19-499c-a5e9-79e98edcf4b7/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64032778-3b19-499c-a5e9-79e98edcf4b7/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64032778-3b19-499c-a5e9-79e98edcf4b7/bin/uautomizer-ug76WZFUDN --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed --- 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-6b4ec56 [2022-11-20 11:29:40,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:29:40,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:29:40,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:29:40,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:29:40,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:29:40,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:29:40,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:29:40,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:29:40,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:29:40,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:29:40,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:29:40,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:29:40,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:29:40,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:29:40,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:29:40,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:29:40,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:29:40,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:29:40,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:29:40,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:29:40,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:29:40,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:29:40,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:29:40,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:29:40,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:29:40,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:29:40,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:29:40,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:29:40,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:29:40,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:29:40,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:29:40,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:29:40,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:29:40,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:29:40,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:29:40,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:29:40,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:29:40,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:29:40,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:29:40,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:29:40,343 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64032778-3b19-499c-a5e9-79e98edcf4b7/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:29:40,366 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:29:40,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:29:40,367 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:29:40,367 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:29:40,368 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:29:40,368 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:29:40,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:29:40,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:29:40,369 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:29:40,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:29:40,370 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:29:40,370 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:29:40,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:29:40,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:29:40,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:29:40,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:29:40,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:29:40,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:29:40,371 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:29:40,372 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:29:40,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:29:40,372 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:29:40,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:29:40,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:29:40,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:29:40,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:29:40,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:29:40,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:29:40,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:29:40,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:29:40,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:29:40,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:29:40,375 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:29:40,375 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:29:40,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:29:40,376 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_64032778-3b19-499c-a5e9-79e98edcf4b7/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64032778-3b19-499c-a5e9-79e98edcf4b7/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed [2022-11-20 11:29:40,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:29:40,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:29:40,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:29:40,748 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:29:40,748 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:29:40,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64032778-3b19-499c-a5e9-79e98edcf4b7/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i [2022-11-20 11:29:44,659 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:29:45,056 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:29:45,063 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64032778-3b19-499c-a5e9-79e98edcf4b7/sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i [2022-11-20 11:29:45,088 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64032778-3b19-499c-a5e9-79e98edcf4b7/bin/uautomizer-ug76WZFUDN/data/73512dae6/ff81b7486eca4b698bcec575726bf325/FLAGbd0d293f5 [2022-11-20 11:29:45,112 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64032778-3b19-499c-a5e9-79e98edcf4b7/bin/uautomizer-ug76WZFUDN/data/73512dae6/ff81b7486eca4b698bcec575726bf325 [2022-11-20 11:29:45,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:29:45,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:29:45,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:29:45,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:29:45,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:29:45,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:29:45" (1/1) ... [2022-11-20 11:29:45,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ac178a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:45, skipping insertion in model container [2022-11-20 11:29:45,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:29:45" (1/1) ... [2022-11-20 11:29:45,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:29:45,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:29:46,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:29:46,039 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:29:46,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:29:46,214 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:29:46,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:46 WrapperNode [2022-11-20 11:29:46,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:29:46,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:29:46,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:29:46,217 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:29:46,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:46" (1/1) ... [2022-11-20 11:29:46,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:46" (1/1) ... [2022-11-20 11:29:46,278 INFO L138 Inliner]: procedures = 365, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2022-11-20 11:29:46,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:29:46,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:29:46,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:29:46,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:29:46,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:46" (1/1) ... [2022-11-20 11:29:46,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:46" (1/1) ... [2022-11-20 11:29:46,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:46" (1/1) ... [2022-11-20 11:29:46,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:46" (1/1) ... [2022-11-20 11:29:46,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:46" (1/1) ... [2022-11-20 11:29:46,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:46" (1/1) ... [2022-11-20 11:29:46,314 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:46" (1/1) ... [2022-11-20 11:29:46,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:46" (1/1) ... [2022-11-20 11:29:46,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:29:46,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:29:46,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:29:46,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:29:46,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:46" (1/1) ... [2022-11-20 11:29:46,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:29:46,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64032778-3b19-499c-a5e9-79e98edcf4b7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:29:46,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64032778-3b19-499c-a5e9-79e98edcf4b7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:29:46,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64032778-3b19-499c-a5e9-79e98edcf4b7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:29:46,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:29:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:29:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:29:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:29:46,435 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:29:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:29:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:29:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 11:29:46,440 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 11:29:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:29:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:29:46,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:29:46,442 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:29:46,681 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:29:46,684 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:29:47,120 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:29:47,129 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:29:47,129 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:29:47,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:29:47 BoogieIcfgContainer [2022-11-20 11:29:47,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:29:47,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:29:47,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:29:47,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:29:47,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:29:45" (1/3) ... [2022-11-20 11:29:47,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62bd7a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:29:47, skipping insertion in model container [2022-11-20 11:29:47,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:29:46" (2/3) ... [2022-11-20 11:29:47,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62bd7a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:29:47, skipping insertion in model container [2022-11-20 11:29:47,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:29:47" (3/3) ... [2022-11-20 11:29:47,153 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_25-malloc_race_cp.i [2022-11-20 11:29:47,166 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:29:47,180 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:29:47,181 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-20 11:29:47,181 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:29:47,306 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:29:47,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 106 transitions, 217 flow [2022-11-20 11:29:47,482 INFO L130 PetriNetUnfolder]: 0/105 cut-off events. [2022-11-20 11:29:47,482 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:29:47,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 105 events. 0/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-20 11:29:47,486 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 106 transitions, 217 flow [2022-11-20 11:29:47,492 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 105 transitions, 213 flow [2022-11-20 11:29:47,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:29:47,513 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=PETRI_NET, 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;@7d839d72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:29:47,513 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-20 11:29:47,524 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2022-11-20 11:29:47,524 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:29:47,525 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:29:47,526 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:29:47,526 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 11:29:47,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:29:47,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1477268294, now seen corresponding path program 1 times [2022-11-20 11:29:47,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:29:47,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099422780] [2022-11-20 11:29:47,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:29:47,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:29:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:29:47,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:29:47,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:29:47,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099422780] [2022-11-20 11:29:47,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099422780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:29:47,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:29:47,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:29:47,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438697271] [2022-11-20 11:29:47,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:29:47,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:29:47,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:29:47,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:29:47,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:29:47,905 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 106 [2022-11-20 11:29:47,909 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 105 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2022-11-20 11:29:47,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:29:47,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 106 [2022-11-20 11:29:47,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:29:48,030 INFO L130 PetriNetUnfolder]: 9/218 cut-off events. [2022-11-20 11:29:48,031 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:29:48,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 218 events. 9/218 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 721 event pairs, 9 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 200. Up to 29 conditions per place. [2022-11-20 11:29:48,037 INFO L137 encePairwiseOnDemand]: 103/106 looper letters, 10 selfloop transitions, 2 changer transitions 0/104 dead transitions. [2022-11-20 11:29:48,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 104 transitions, 235 flow [2022-11-20 11:29:48,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:29:48,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:29:48,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2022-11-20 11:29:48,056 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9182389937106918 [2022-11-20 11:29:48,057 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 292 transitions. [2022-11-20 11:29:48,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 292 transitions. [2022-11-20 11:29:48,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:29:48,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 292 transitions. [2022-11-20 11:29:48,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2022-11-20 11:29:48,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2022-11-20 11:29:48,079 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2022-11-20 11:29:48,082 INFO L175 Difference]: Start difference. First operand has 109 places, 105 transitions, 213 flow. Second operand 3 states and 292 transitions. [2022-11-20 11:29:48,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 104 transitions, 235 flow [2022-11-20 11:29:48,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 104 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:29:48,104 INFO L231 Difference]: Finished difference. Result has 109 places, 104 transitions, 214 flow [2022-11-20 11:29:48,107 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=109, PETRI_TRANSITIONS=104} [2022-11-20 11:29:48,115 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, 0 predicate places. [2022-11-20 11:29:48,115 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 104 transitions, 214 flow [2022-11-20 11:29:48,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2022-11-20 11:29:48,116 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:29:48,116 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:29:48,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:29:48,121 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 11:29:48,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:29:48,123 INFO L85 PathProgramCache]: Analyzing trace with hash -523922105, now seen corresponding path program 1 times [2022-11-20 11:29:48,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:29:48,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289678434] [2022-11-20 11:29:48,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:29:48,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:29:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:29:48,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:29:48,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:29:48,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289678434] [2022-11-20 11:29:48,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289678434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:29:48,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:29:48,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:29:48,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716513627] [2022-11-20 11:29:48,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:29:48,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:29:48,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:29:48,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:29:48,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:29:48,288 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 106 [2022-11-20 11:29:48,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 104 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2022-11-20 11:29:48,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:29:48,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 106 [2022-11-20 11:29:48,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:29:48,347 INFO L130 PetriNetUnfolder]: 0/103 cut-off events. [2022-11-20 11:29:48,347 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:29:48,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 103 events. 0/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2022-11-20 11:29:48,349 INFO L137 encePairwiseOnDemand]: 103/106 looper letters, 10 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2022-11-20 11:29:48,349 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 103 transitions, 236 flow [2022-11-20 11:29:48,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:29:48,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:29:48,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2022-11-20 11:29:48,353 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9182389937106918 [2022-11-20 11:29:48,353 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 292 transitions. [2022-11-20 11:29:48,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 292 transitions. [2022-11-20 11:29:48,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:29:48,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 292 transitions. [2022-11-20 11:29:48,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2022-11-20 11:29:48,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2022-11-20 11:29:48,367 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2022-11-20 11:29:48,368 INFO L175 Difference]: Start difference. First operand has 109 places, 104 transitions, 214 flow. Second operand 3 states and 292 transitions. [2022-11-20 11:29:48,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 103 transitions, 236 flow [2022-11-20 11:29:48,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 103 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:29:48,374 INFO L231 Difference]: Finished difference. Result has 108 places, 103 transitions, 212 flow [2022-11-20 11:29:48,375 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=108, PETRI_TRANSITIONS=103} [2022-11-20 11:29:48,377 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -1 predicate places. [2022-11-20 11:29:48,377 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 103 transitions, 212 flow [2022-11-20 11:29:48,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2022-11-20 11:29:48,378 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:29:48,379 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:29:48,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:29:48,380 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 11:29:48,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:29:48,383 INFO L85 PathProgramCache]: Analyzing trace with hash 776218182, now seen corresponding path program 1 times [2022-11-20 11:29:48,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:29:48,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687188897] [2022-11-20 11:29:48,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:29:48,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:29:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:29:48,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:29:48,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:29:48,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687188897] [2022-11-20 11:29:48,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687188897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:29:48,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:29:48,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:29:48,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16914264] [2022-11-20 11:29:48,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:29:48,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:29:48,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:29:48,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:29:48,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:29:48,551 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 106 [2022-11-20 11:29:48,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 103 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2022-11-20 11:29:48,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:29:48,552 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 106 [2022-11-20 11:29:48,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:29:48,624 INFO L130 PetriNetUnfolder]: 0/101 cut-off events. [2022-11-20 11:29:48,632 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:29:48,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 101 events. 0/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-11-20 11:29:48,634 INFO L137 encePairwiseOnDemand]: 103/106 looper letters, 6 selfloop transitions, 1 changer transitions 0/101 dead transitions. [2022-11-20 11:29:48,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 101 transitions, 222 flow [2022-11-20 11:29:48,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:29:48,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:29:48,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2022-11-20 11:29:48,638 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9339622641509434 [2022-11-20 11:29:48,640 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 297 transitions. [2022-11-20 11:29:48,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 297 transitions. [2022-11-20 11:29:48,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:29:48,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 297 transitions. [2022-11-20 11:29:48,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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) [2022-11-20 11:29:48,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2022-11-20 11:29:48,648 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2022-11-20 11:29:48,648 INFO L175 Difference]: Start difference. First operand has 108 places, 103 transitions, 212 flow. Second operand 3 states and 297 transitions. [2022-11-20 11:29:48,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 101 transitions, 222 flow [2022-11-20 11:29:48,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 101 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:29:48,654 INFO L231 Difference]: Finished difference. Result has 106 places, 101 transitions, 206 flow [2022-11-20 11:29:48,655 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=106, PETRI_TRANSITIONS=101} [2022-11-20 11:29:48,656 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -3 predicate places. [2022-11-20 11:29:48,657 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 101 transitions, 206 flow [2022-11-20 11:29:48,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2022-11-20 11:29:48,657 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:29:48,658 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:29:48,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:29:48,658 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 11:29:48,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:29:48,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1420453948, now seen corresponding path program 1 times [2022-11-20 11:29:48,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:29:48,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146166185] [2022-11-20 11:29:48,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:29:48,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:29:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:29:48,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:29:48,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:29:48,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146166185] [2022-11-20 11:29:48,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146166185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:29:48,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:29:48,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:29:48,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917709082] [2022-11-20 11:29:48,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:29:48,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:29:48,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:29:48,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:29:48,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:29:48,791 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 106 [2022-11-20 11:29:48,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 101 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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) [2022-11-20 11:29:48,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:29:48,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 106 [2022-11-20 11:29:48,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:29:48,861 INFO L130 PetriNetUnfolder]: 4/178 cut-off events. [2022-11-20 11:29:48,861 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:29:48,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 178 events. 4/178 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 479 event pairs, 2 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 159. Up to 12 conditions per place. [2022-11-20 11:29:48,863 INFO L137 encePairwiseOnDemand]: 102/106 looper letters, 7 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2022-11-20 11:29:48,864 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 101 transitions, 224 flow [2022-11-20 11:29:48,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:29:48,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:29:48,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 299 transitions. [2022-11-20 11:29:48,866 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.940251572327044 [2022-11-20 11:29:48,866 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 299 transitions. [2022-11-20 11:29:48,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 299 transitions. [2022-11-20 11:29:48,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:29:48,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 299 transitions. [2022-11-20 11:29:48,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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) [2022-11-20 11:29:48,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2022-11-20 11:29:48,870 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2022-11-20 11:29:48,870 INFO L175 Difference]: Start difference. First operand has 106 places, 101 transitions, 206 flow. Second operand 3 states and 299 transitions. [2022-11-20 11:29:48,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 101 transitions, 224 flow [2022-11-20 11:29:48,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 101 transitions, 223 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:29:48,874 INFO L231 Difference]: Finished difference. Result has 106 places, 101 transitions, 215 flow [2022-11-20 11:29:48,874 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=106, PETRI_TRANSITIONS=101} [2022-11-20 11:29:48,875 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -3 predicate places. [2022-11-20 11:29:48,876 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 101 transitions, 215 flow [2022-11-20 11:29:48,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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) [2022-11-20 11:29:48,876 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:29:48,877 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:29:48,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:29:48,877 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 11:29:48,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:29:48,878 INFO L85 PathProgramCache]: Analyzing trace with hash 722590744, now seen corresponding path program 1 times [2022-11-20 11:29:48,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:29:48,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866631316] [2022-11-20 11:29:48,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:29:48,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:29:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:29:49,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:29:49,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:29:49,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866631316] [2022-11-20 11:29:49,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866631316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:29:49,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:29:49,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:29:49,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2295316] [2022-11-20 11:29:49,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:29:49,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:29:49,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:29:49,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:29:49,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:29:49,534 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 106 [2022-11-20 11:29:49,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 101 transitions, 215 flow. Second operand has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 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) [2022-11-20 11:29:49,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:29:49,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 106 [2022-11-20 11:29:49,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:29:50,097 INFO L130 PetriNetUnfolder]: 290/909 cut-off events. [2022-11-20 11:29:50,098 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:29:50,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1549 conditions, 909 events. 290/909 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4957 event pairs, 130 based on Foata normal form. 0/808 useless extension candidates. Maximal degree in co-relation 1509. Up to 437 conditions per place. [2022-11-20 11:29:50,112 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 62 selfloop transitions, 41 changer transitions 0/173 dead transitions. [2022-11-20 11:29:50,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 173 transitions, 565 flow [2022-11-20 11:29:50,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:29:50,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:29:50,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 554 transitions. [2022-11-20 11:29:50,116 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8710691823899371 [2022-11-20 11:29:50,116 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 554 transitions. [2022-11-20 11:29:50,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 554 transitions. [2022-11-20 11:29:50,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:29:50,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 554 transitions. [2022-11-20 11:29:50,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.33333333333333) internal successors, (554), 6 states have internal predecessors, (554), 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) [2022-11-20 11:29:50,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 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) [2022-11-20 11:29:50,121 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 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) [2022-11-20 11:29:50,121 INFO L175 Difference]: Start difference. First operand has 106 places, 101 transitions, 215 flow. Second operand 6 states and 554 transitions. [2022-11-20 11:29:50,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 173 transitions, 565 flow [2022-11-20 11:29:50,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 173 transitions, 565 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:29:50,127 INFO L231 Difference]: Finished difference. Result has 115 places, 143 transitions, 473 flow [2022-11-20 11:29:50,127 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=473, PETRI_PLACES=115, PETRI_TRANSITIONS=143} [2022-11-20 11:29:50,128 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, 6 predicate places. [2022-11-20 11:29:50,128 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 143 transitions, 473 flow [2022-11-20 11:29:50,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 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) [2022-11-20 11:29:50,129 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:29:50,129 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:29:50,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:29:50,130 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 11:29:50,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:29:50,130 INFO L85 PathProgramCache]: Analyzing trace with hash -611252092, now seen corresponding path program 1 times [2022-11-20 11:29:50,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:29:50,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811460714] [2022-11-20 11:29:50,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:29:50,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:29:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:29:50,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:29:50,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:29:50,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811460714] [2022-11-20 11:29:50,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811460714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:29:50,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:29:50,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:29:50,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729246175] [2022-11-20 11:29:50,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:29:50,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:29:50,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:29:50,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:29:50,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:29:50,598 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 106 [2022-11-20 11:29:50,600 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 143 transitions, 473 flow. Second operand has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 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) [2022-11-20 11:29:50,600 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:29:50,600 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 106 [2022-11-20 11:29:50,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:29:51,375 INFO L130 PetriNetUnfolder]: 448/1412 cut-off events. [2022-11-20 11:29:51,376 INFO L131 PetriNetUnfolder]: For 382/396 co-relation queries the response was YES. [2022-11-20 11:29:51,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3265 conditions, 1412 events. 448/1412 cut-off events. For 382/396 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 9204 event pairs, 34 based on Foata normal form. 24/1353 useless extension candidates. Maximal degree in co-relation 3220. Up to 453 conditions per place. [2022-11-20 11:29:51,388 INFO L137 encePairwiseOnDemand]: 91/106 looper letters, 129 selfloop transitions, 48 changer transitions 0/253 dead transitions. [2022-11-20 11:29:51,389 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 253 transitions, 1222 flow [2022-11-20 11:29:51,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:29:51,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:29:51,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 584 transitions. [2022-11-20 11:29:51,392 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9182389937106918 [2022-11-20 11:29:51,392 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 584 transitions. [2022-11-20 11:29:51,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 584 transitions. [2022-11-20 11:29:51,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:29:51,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 584 transitions. [2022-11-20 11:29:51,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 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) [2022-11-20 11:29:51,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 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) [2022-11-20 11:29:51,397 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 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) [2022-11-20 11:29:51,398 INFO L175 Difference]: Start difference. First operand has 115 places, 143 transitions, 473 flow. Second operand 6 states and 584 transitions. [2022-11-20 11:29:51,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 253 transitions, 1222 flow [2022-11-20 11:29:51,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 253 transitions, 1222 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:29:51,409 INFO L231 Difference]: Finished difference. Result has 125 places, 189 transitions, 879 flow [2022-11-20 11:29:51,410 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=879, PETRI_PLACES=125, PETRI_TRANSITIONS=189} [2022-11-20 11:29:51,410 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, 16 predicate places. [2022-11-20 11:29:51,411 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 189 transitions, 879 flow [2022-11-20 11:29:51,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 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) [2022-11-20 11:29:51,412 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:29:51,412 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:29:51,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:29:51,412 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 11:29:51,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:29:51,413 INFO L85 PathProgramCache]: Analyzing trace with hash -789787497, now seen corresponding path program 1 times [2022-11-20 11:29:51,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:29:51,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675133232] [2022-11-20 11:29:51,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:29:51,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:29:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:29:51,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:29:51,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:29:51,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675133232] [2022-11-20 11:29:51,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675133232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:29:51,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:29:51,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:29:51,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391785275] [2022-11-20 11:29:51,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:29:51,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:29:51,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:29:51,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:29:51,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:29:51,611 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 106 [2022-11-20 11:29:51,611 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 189 transitions, 879 flow. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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) [2022-11-20 11:29:51,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:29:51,615 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 106 [2022-11-20 11:29:51,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:29:51,695 INFO L130 PetriNetUnfolder]: 39/292 cut-off events. [2022-11-20 11:29:51,696 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2022-11-20 11:29:51,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 555 conditions, 292 events. 39/292 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 988 event pairs, 4 based on Foata normal form. 2/280 useless extension candidates. Maximal degree in co-relation 501. Up to 64 conditions per place. [2022-11-20 11:29:51,698 INFO L137 encePairwiseOnDemand]: 102/106 looper letters, 7 selfloop transitions, 4 changer transitions 0/122 dead transitions. [2022-11-20 11:29:51,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 122 transitions, 427 flow [2022-11-20 11:29:51,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:29:51,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:29:51,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2022-11-20 11:29:51,701 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9371069182389937 [2022-11-20 11:29:51,701 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2022-11-20 11:29:51,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2022-11-20 11:29:51,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:29:51,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2022-11-20 11:29:51,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2022-11-20 11:29:51,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2022-11-20 11:29:51,704 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2022-11-20 11:29:51,705 INFO L175 Difference]: Start difference. First operand has 125 places, 189 transitions, 879 flow. Second operand 3 states and 298 transitions. [2022-11-20 11:29:51,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 122 transitions, 427 flow [2022-11-20 11:29:51,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 122 transitions, 377 flow, removed 17 selfloop flow, removed 8 redundant places. [2022-11-20 11:29:51,711 INFO L231 Difference]: Finished difference. Result has 118 places, 122 transitions, 363 flow [2022-11-20 11:29:51,711 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=363, PETRI_PLACES=118, PETRI_TRANSITIONS=122} [2022-11-20 11:29:51,712 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, 9 predicate places. [2022-11-20 11:29:51,712 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 122 transitions, 363 flow [2022-11-20 11:29:51,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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) [2022-11-20 11:29:51,713 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:29:51,713 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:29:51,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:29:51,714 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 11:29:51,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:29:51,714 INFO L85 PathProgramCache]: Analyzing trace with hash -281622505, now seen corresponding path program 1 times [2022-11-20 11:29:51,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:29:51,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006908858] [2022-11-20 11:29:51,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:29:51,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:29:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:29:52,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:29:52,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:29:52,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006908858] [2022-11-20 11:29:52,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006908858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:29:52,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:29:52,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:29:52,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461663731] [2022-11-20 11:29:52,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:29:52,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:29:52,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:29:52,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:29:52,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:29:52,156 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 106 [2022-11-20 11:29:52,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 122 transitions, 363 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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) [2022-11-20 11:29:52,157 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:29:52,157 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 106 [2022-11-20 11:29:52,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:29:52,581 INFO L130 PetriNetUnfolder]: 157/664 cut-off events. [2022-11-20 11:29:52,582 INFO L131 PetriNetUnfolder]: For 144/168 co-relation queries the response was YES. [2022-11-20 11:29:52,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1381 conditions, 664 events. 157/664 cut-off events. For 144/168 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3518 event pairs, 22 based on Foata normal form. 0/630 useless extension candidates. Maximal degree in co-relation 1334. Up to 262 conditions per place. [2022-11-20 11:29:52,587 INFO L137 encePairwiseOnDemand]: 92/106 looper letters, 57 selfloop transitions, 47 changer transitions 5/181 dead transitions. [2022-11-20 11:29:52,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 181 transitions, 790 flow [2022-11-20 11:29:52,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:29:52,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:29:52,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 543 transitions. [2022-11-20 11:29:52,590 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8537735849056604 [2022-11-20 11:29:52,590 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 543 transitions. [2022-11-20 11:29:52,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 543 transitions. [2022-11-20 11:29:52,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:29:52,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 543 transitions. [2022-11-20 11:29:52,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.5) internal successors, (543), 6 states have internal predecessors, (543), 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) [2022-11-20 11:29:52,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 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) [2022-11-20 11:29:52,598 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 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) [2022-11-20 11:29:52,603 INFO L175 Difference]: Start difference. First operand has 118 places, 122 transitions, 363 flow. Second operand 6 states and 543 transitions. [2022-11-20 11:29:52,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 181 transitions, 790 flow [2022-11-20 11:29:52,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 181 transitions, 786 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:29:52,610 INFO L231 Difference]: Finished difference. Result has 127 places, 163 transitions, 736 flow [2022-11-20 11:29:52,611 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=736, PETRI_PLACES=127, PETRI_TRANSITIONS=163} [2022-11-20 11:29:52,615 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, 18 predicate places. [2022-11-20 11:29:52,615 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 163 transitions, 736 flow [2022-11-20 11:29:52,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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) [2022-11-20 11:29:52,616 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:29:52,616 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:29:52,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:29:52,616 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 11:29:52,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:29:52,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1980680546, now seen corresponding path program 1 times [2022-11-20 11:29:52,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:29:52,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632601956] [2022-11-20 11:29:52,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:29:52,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:29:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:29:53,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:29:53,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:29:53,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632601956] [2022-11-20 11:29:53,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632601956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:29:53,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:29:53,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:29:53,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51816656] [2022-11-20 11:29:53,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:29:53,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:29:53,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:29:53,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:29:53,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:29:53,062 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 106 [2022-11-20 11:29:53,063 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 163 transitions, 736 flow. Second operand has 6 states, 6 states have (on average 77.66666666666667) internal successors, (466), 6 states have internal predecessors, (466), 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) [2022-11-20 11:29:53,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:29:53,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 106 [2022-11-20 11:29:53,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:29:53,349 INFO L130 PetriNetUnfolder]: 202/770 cut-off events. [2022-11-20 11:29:53,349 INFO L131 PetriNetUnfolder]: For 518/558 co-relation queries the response was YES. [2022-11-20 11:29:53,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2085 conditions, 770 events. 202/770 cut-off events. For 518/558 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4180 event pairs, 29 based on Foata normal form. 0/757 useless extension candidates. Maximal degree in co-relation 2033. Up to 401 conditions per place. [2022-11-20 11:29:53,355 INFO L137 encePairwiseOnDemand]: 95/106 looper letters, 88 selfloop transitions, 26 changer transitions 16/199 dead transitions. [2022-11-20 11:29:53,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 199 transitions, 1200 flow [2022-11-20 11:29:53,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:29:53,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:29:53,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 510 transitions. [2022-11-20 11:29:53,359 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8018867924528302 [2022-11-20 11:29:53,359 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 510 transitions. [2022-11-20 11:29:53,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 510 transitions. [2022-11-20 11:29:53,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:29:53,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 510 transitions. [2022-11-20 11:29:53,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 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) [2022-11-20 11:29:53,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 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) [2022-11-20 11:29:53,366 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 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) [2022-11-20 11:29:53,366 INFO L175 Difference]: Start difference. First operand has 127 places, 163 transitions, 736 flow. Second operand 6 states and 510 transitions. [2022-11-20 11:29:53,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 199 transitions, 1200 flow [2022-11-20 11:29:53,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 199 transitions, 1182 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-20 11:29:53,385 INFO L231 Difference]: Finished difference. Result has 137 places, 179 transitions, 932 flow [2022-11-20 11:29:53,387 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=932, PETRI_PLACES=137, PETRI_TRANSITIONS=179} [2022-11-20 11:29:53,388 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, 28 predicate places. [2022-11-20 11:29:53,388 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 179 transitions, 932 flow [2022-11-20 11:29:53,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.66666666666667) internal successors, (466), 6 states have internal predecessors, (466), 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) [2022-11-20 11:29:53,389 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:29:53,389 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:29:53,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:29:53,389 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 11:29:53,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:29:53,390 INFO L85 PathProgramCache]: Analyzing trace with hash 881673801, now seen corresponding path program 1 times [2022-11-20 11:29:53,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:29:53,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622746961] [2022-11-20 11:29:53,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:29:53,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:29:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:29:54,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:29:54,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:29:54,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622746961] [2022-11-20 11:29:54,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622746961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:29:54,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:29:54,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 11:29:54,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13340295] [2022-11-20 11:29:54,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:29:54,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:29:54,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:29:54,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:29:54,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:29:54,085 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2022-11-20 11:29:54,086 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 179 transitions, 932 flow. Second operand has 12 states, 12 states have (on average 62.5) internal successors, (750), 12 states have internal predecessors, (750), 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) [2022-11-20 11:29:54,086 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:29:54,086 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2022-11-20 11:29:54,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:29:54,931 INFO L130 PetriNetUnfolder]: 234/891 cut-off events. [2022-11-20 11:29:54,931 INFO L131 PetriNetUnfolder]: For 780/785 co-relation queries the response was YES. [2022-11-20 11:29:54,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2613 conditions, 891 events. 234/891 cut-off events. For 780/785 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 5317 event pairs, 35 based on Foata normal form. 13/894 useless extension candidates. Maximal degree in co-relation 2545. Up to 292 conditions per place. [2022-11-20 11:29:54,940 INFO L137 encePairwiseOnDemand]: 92/106 looper letters, 128 selfloop transitions, 33 changer transitions 35/250 dead transitions. [2022-11-20 11:29:54,940 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 250 transitions, 1787 flow [2022-11-20 11:29:54,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-20 11:29:54,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-20 11:29:54,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1173 transitions. [2022-11-20 11:29:54,944 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6147798742138365 [2022-11-20 11:29:54,945 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1173 transitions. [2022-11-20 11:29:54,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1173 transitions. [2022-11-20 11:29:54,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:29:54,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1173 transitions. [2022-11-20 11:29:54,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 65.16666666666667) internal successors, (1173), 18 states have internal predecessors, (1173), 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) [2022-11-20 11:29:54,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 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) [2022-11-20 11:29:54,957 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 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) [2022-11-20 11:29:54,957 INFO L175 Difference]: Start difference. First operand has 137 places, 179 transitions, 932 flow. Second operand 18 states and 1173 transitions. [2022-11-20 11:29:54,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 250 transitions, 1787 flow [2022-11-20 11:29:54,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 250 transitions, 1709 flow, removed 25 selfloop flow, removed 4 redundant places. [2022-11-20 11:29:54,977 INFO L231 Difference]: Finished difference. Result has 149 places, 178 transitions, 921 flow [2022-11-20 11:29:54,978 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=855, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=921, PETRI_PLACES=149, PETRI_TRANSITIONS=178} [2022-11-20 11:29:54,979 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, 40 predicate places. [2022-11-20 11:29:54,980 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 178 transitions, 921 flow [2022-11-20 11:29:54,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.5) internal successors, (750), 12 states have internal predecessors, (750), 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) [2022-11-20 11:29:54,980 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:29:54,981 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:29:54,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:29:54,981 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 11:29:54,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:29:54,982 INFO L85 PathProgramCache]: Analyzing trace with hash -29699053, now seen corresponding path program 1 times [2022-11-20 11:29:54,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:29:54,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754169908] [2022-11-20 11:29:54,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:29:54,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:29:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:29:55,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:29:55,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:29:55,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754169908] [2022-11-20 11:29:55,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754169908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:29:55,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:29:55,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 11:29:55,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881707636] [2022-11-20 11:29:55,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:29:55,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:29:55,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:29:55,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:29:55,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:29:55,668 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 106 [2022-11-20 11:29:55,670 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 178 transitions, 921 flow. Second operand has 12 states, 12 states have (on average 64.41666666666667) internal successors, (773), 12 states have internal predecessors, (773), 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) [2022-11-20 11:29:55,670 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:29:55,670 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 106 [2022-11-20 11:29:55,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:29:56,523 INFO L130 PetriNetUnfolder]: 195/704 cut-off events. [2022-11-20 11:29:56,524 INFO L131 PetriNetUnfolder]: For 703/713 co-relation queries the response was YES. [2022-11-20 11:29:56,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2286 conditions, 704 events. 195/704 cut-off events. For 703/713 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3677 event pairs, 19 based on Foata normal form. 15/718 useless extension candidates. Maximal degree in co-relation 2214. Up to 167 conditions per place. [2022-11-20 11:29:56,531 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 113 selfloop transitions, 63 changer transitions 16/249 dead transitions. [2022-11-20 11:29:56,531 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 249 transitions, 1749 flow [2022-11-20 11:29:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:29:56,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-20 11:29:56,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1043 transitions. [2022-11-20 11:29:56,536 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6559748427672956 [2022-11-20 11:29:56,536 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1043 transitions. [2022-11-20 11:29:56,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1043 transitions. [2022-11-20 11:29:56,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:29:56,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1043 transitions. [2022-11-20 11:29:56,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 69.53333333333333) internal successors, (1043), 15 states have internal predecessors, (1043), 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) [2022-11-20 11:29:56,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-20 11:29:56,547 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 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) [2022-11-20 11:29:56,547 INFO L175 Difference]: Start difference. First operand has 149 places, 178 transitions, 921 flow. Second operand 15 states and 1043 transitions. [2022-11-20 11:29:56,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 249 transitions, 1749 flow [2022-11-20 11:29:56,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 249 transitions, 1653 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-11-20 11:29:56,564 INFO L231 Difference]: Finished difference. Result has 153 places, 190 transitions, 1198 flow [2022-11-20 11:29:56,565 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=865, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1198, PETRI_PLACES=153, PETRI_TRANSITIONS=190} [2022-11-20 11:29:56,565 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, 44 predicate places. [2022-11-20 11:29:56,565 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 190 transitions, 1198 flow [2022-11-20 11:29:56,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 64.41666666666667) internal successors, (773), 12 states have internal predecessors, (773), 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) [2022-11-20 11:29:56,566 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:29:56,566 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:29:56,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:29:56,567 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-20 11:29:56,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:29:56,567 INFO L85 PathProgramCache]: Analyzing trace with hash -33235891, now seen corresponding path program 1 times [2022-11-20 11:29:56,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:29:56,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011572535] [2022-11-20 11:29:56,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:29:56,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:29:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:29:56,624 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:29:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:29:56,694 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:29:56,694 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:29:56,696 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2022-11-20 11:29:56,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2022-11-20 11:29:56,698 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2022-11-20 11:29:56,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2022-11-20 11:29:56,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2022-11-20 11:29:56,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2022-11-20 11:29:56,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-20 11:29:56,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2022-11-20 11:29:56,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2022-11-20 11:29:56,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2022-11-20 11:29:56,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2022-11-20 11:29:56,701 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2022-11-20 11:29:56,701 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2022-11-20 11:29:56,701 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2022-11-20 11:29:56,701 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2022-11-20 11:29:56,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:29:56,702 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:29:56,711 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:29:56,712 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:29:56,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:29:56 BasicIcfg [2022-11-20 11:29:56,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:29:56,820 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:29:56,820 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:29:56,820 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:29:56,821 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:29:47" (3/4) ... [2022-11-20 11:29:56,824 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:29:56,825 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:29:56,825 INFO L158 Benchmark]: Toolchain (without parser) took 11708.09ms. Allocated memory was 167.8MB in the beginning and 343.9MB in the end (delta: 176.2MB). Free memory was 122.2MB in the beginning and 302.4MB in the end (delta: -180.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:29:56,826 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 167.8MB. Free memory is still 107.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:29:56,826 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1096.72ms. Allocated memory is still 167.8MB. Free memory was 122.2MB in the beginning and 85.1MB in the end (delta: 37.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-20 11:29:56,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.29ms. Allocated memory is still 167.8MB. Free memory was 85.1MB in the beginning and 82.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:29:56,829 INFO L158 Benchmark]: Boogie Preprocessor took 53.63ms. Allocated memory is still 167.8MB. Free memory was 82.4MB in the beginning and 80.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:29:56,829 INFO L158 Benchmark]: RCFGBuilder took 804.12ms. Allocated memory was 167.8MB in the beginning and 237.0MB in the end (delta: 69.2MB). Free memory was 80.9MB in the beginning and 201.9MB in the end (delta: -121.0MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2022-11-20 11:29:56,830 INFO L158 Benchmark]: TraceAbstraction took 9678.28ms. Allocated memory was 237.0MB in the beginning and 343.9MB in the end (delta: 107.0MB). Free memory was 201.9MB in the beginning and 302.4MB in the end (delta: -100.5MB). Peak memory consumption was 166.9MB. Max. memory is 16.1GB. [2022-11-20 11:29:56,830 INFO L158 Benchmark]: Witness Printer took 4.72ms. Allocated memory is still 343.9MB. Free memory is still 302.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:29:56,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 167.8MB. Free memory is still 107.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1096.72ms. Allocated memory is still 167.8MB. Free memory was 122.2MB in the beginning and 85.1MB in the end (delta: 37.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.29ms. Allocated memory is still 167.8MB. Free memory was 85.1MB in the beginning and 82.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.63ms. Allocated memory is still 167.8MB. Free memory was 82.4MB in the beginning and 80.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 804.12ms. Allocated memory was 167.8MB in the beginning and 237.0MB in the end (delta: 69.2MB). Free memory was 80.9MB in the beginning and 201.9MB in the end (delta: -121.0MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9678.28ms. Allocated memory was 237.0MB in the beginning and 343.9MB in the end (delta: 107.0MB). Free memory was 201.9MB in the beginning and 302.4MB in the end (delta: -100.5MB). Peak memory consumption was 166.9MB. Max. memory is 16.1GB. * Witness Printer took 4.72ms. Allocated memory is still 343.9MB. Free memory is still 302.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1243]: Data race detected Data race detected The following path leads to a data race: [L1223] 0 int *x; VAL [x={0:0}] [L1224] 0 int *y; VAL [x={0:0}, y={0:0}] [L1225] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [m={1:0}, x={0:0}, y={0:0}] [L1234] 0 pthread_t id; VAL [id={5:0}, m={1:0}, x={0:0}, y={0:0}] [L1235] 0 int *z; VAL [id={5:0}, m={1:0}, x={0:0}, y={0:0}] [L1236] 0 x = malloc(sizeof(int)) VAL [id={5:0}, m={1:0}, malloc(sizeof(int))={-2:0}, x={-2:0}, x = malloc(sizeof(int))=25, y={0:0}] [L1237] 0 y = malloc(sizeof(int)) VAL [id={5:0}, m={1:0}, malloc(sizeof(int))={-3:0}, x={-2:0}, y={-3:0}, y = malloc(sizeof(int))=27] [L1238] 0 z = y VAL [id={5:0}, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1239] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x={-2:0}, y={-3:0}, z={-3:0}] [L1241] EXPR 0 *x VAL [arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1241] EXPR 0 \read(*x) VAL [\read(*x)=30, arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1241] 0 printf("%d\n",*x) VAL [\read(*x)=30, arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1243] EXPR 0 \read(*z) VAL [\read(*z)=29, arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1228] EXPR 1 *x VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1228] 1 *x = 3 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1229] EXPR 1 *y VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1229] 1 *y = 8 VAL [*y = 8=28, arg={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1243] 0 printf("%d\n",*z) VAL [*y = 8=28, \read(*z)=29, arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: *x = 3 [1228] * C: *y = 8 [1229] * C: *x = 3 [1228] * C: x = malloc(sizeof(int)) [1236] * C: y = malloc(sizeof(int)) [1237] * C: *x = 3 [1228] * C: *x = 3 [1228] and C: printf("%d\n",*z) [1243] - UnprovableResult [Line: 1236]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: 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: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 139 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.3s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 377 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 377 mSDsluCounter, 249 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 100 mSDsCounter, 134 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1610 IncrementalHoareTripleChecker+Invalid, 1744 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 134 mSolverCounterUnsat, 149 mSDtfsCounter, 1610 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1198occurred in iteration=11, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 645 NumberOfCodeBlocks, 645 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 554 ConstructedInterpolants, 0 QuantifiedInterpolants, 1575 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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! [2022-11-20 11:29:56,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64032778-3b19-499c-a5e9-79e98edcf4b7/bin/uautomizer-ug76WZFUDN/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