./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852fec78-4529-4e32-866c-b3973c8114e6/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852fec78-4529-4e32-866c-b3973c8114e6/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852fec78-4529-4e32-866c-b3973c8114e6/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852fec78-4529-4e32-866c-b3973c8114e6/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852fec78-4529-4e32-866c-b3973c8114e6/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852fec78-4529-4e32-866c-b3973c8114e6/bin/uautomizer-uyxdKDjOR8 --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 e4d7ddac57159b9ffdb625c6e71ce7282574c20e8d076ceee5f26bffd815ae46 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 16:48:32,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:48:32,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:48:32,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:48:32,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:48:32,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:48:32,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:48:32,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:48:32,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:48:32,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:48:32,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:48:32,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:48:32,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:48:32,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:48:32,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:48:32,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:48:32,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:48:32,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:48:32,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:48:32,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:48:32,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:48:32,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:48:32,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:48:32,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:48:32,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:48:32,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:48:32,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:48:32,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:48:32,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:48:32,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:48:32,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:48:32,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:48:32,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:48:32,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:48:32,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:48:32,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:48:32,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:48:32,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:48:32,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:48:32,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:48:32,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:48:32,337 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852fec78-4529-4e32-866c-b3973c8114e6/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 16:48:32,357 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:48:32,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:48:32,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:48:32,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:48:32,358 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:48:32,359 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:48:32,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:48:32,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:48:32,360 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:48:32,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:48:32,360 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:48:32,360 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:48:32,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:48:32,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:48:32,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:48:32,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:48:32,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:48:32,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:48:32,361 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 16:48:32,361 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:48:32,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:48:32,362 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:48:32,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:48:32,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:48:32,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:48:32,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:48:32,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:48:32,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:48:32,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:48:32,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:48:32,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:48:32,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:48:32,363 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:48:32,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:48:32,364 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:48:32,364 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:48:32,364 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:48:32,364 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_852fec78-4529-4e32-866c-b3973c8114e6/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852fec78-4529-4e32-866c-b3973c8114e6/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4d7ddac57159b9ffdb625c6e71ce7282574c20e8d076ceee5f26bffd815ae46 [2022-12-13 16:48:32,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:48:32,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:48:32,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:48:32,558 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:48:32,558 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:48:32,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852fec78-4529-4e32-866c-b3973c8114e6/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2022-12-13 16:48:35,145 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:48:35,329 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:48:35,329 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852fec78-4529-4e32-866c-b3973c8114e6/sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2022-12-13 16:48:35,343 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852fec78-4529-4e32-866c-b3973c8114e6/bin/uautomizer-uyxdKDjOR8/data/bb55cfa2e/3611f38f0def4cf5b7fa125b2b6bc251/FLAG5537a10c6 [2022-12-13 16:48:35,357 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852fec78-4529-4e32-866c-b3973c8114e6/bin/uautomizer-uyxdKDjOR8/data/bb55cfa2e/3611f38f0def4cf5b7fa125b2b6bc251 [2022-12-13 16:48:35,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:48:35,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:48:35,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:48:35,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:48:35,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:48:35,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:48:35" (1/1) ... [2022-12-13 16:48:35,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63db673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:48:35, skipping insertion in model container [2022-12-13 16:48:35,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:48:35" (1/1) ... [2022-12-13 16:48:35,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:48:35,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:48:35,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:48:35,830 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:48:35,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:48:35,911 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:48:35,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:48:35 WrapperNode [2022-12-13 16:48:35,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:48:35,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:48:35,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:48:35,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:48:35,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:48:35" (1/1) ... [2022-12-13 16:48:35,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:48:35" (1/1) ... [2022-12-13 16:48:35,953 INFO L138 Inliner]: procedures = 368, calls = 31, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 209 [2022-12-13 16:48:35,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:48:35,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:48:35,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:48:35,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:48:35,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:48:35" (1/1) ... [2022-12-13 16:48:35,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:48:35" (1/1) ... [2022-12-13 16:48:35,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:48:35" (1/1) ... [2022-12-13 16:48:35,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:48:35" (1/1) ... [2022-12-13 16:48:35,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:48:35" (1/1) ... [2022-12-13 16:48:35,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:48:35" (1/1) ... [2022-12-13 16:48:35,987 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:48:35" (1/1) ... [2022-12-13 16:48:35,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:48:35" (1/1) ... [2022-12-13 16:48:35,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:48:35,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:48:35,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:48:35,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:48:35,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:48:35" (1/1) ... [2022-12-13 16:48:36,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:48:36,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852fec78-4529-4e32-866c-b3973c8114e6/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:48:36,022 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852fec78-4529-4e32-866c-b3973c8114e6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:48:36,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852fec78-4529-4e32-866c-b3973c8114e6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:48:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:48:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 16:48:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:48:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 16:48:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:48:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 16:48:36,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 16:48:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:48:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 16:48:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 16:48:36,066 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 16:48:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:48:36,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:48:36,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:48:36,068 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 16:48:36,196 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:48:36,198 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:48:36,556 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:48:36,565 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:48:36,565 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:48:36,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:48:36 BoogieIcfgContainer [2022-12-13 16:48:36,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:48:36,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:48:36,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:48:36,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:48:36,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:48:35" (1/3) ... [2022-12-13 16:48:36,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5780e70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:48:36, skipping insertion in model container [2022-12-13 16:48:36,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:48:35" (2/3) ... [2022-12-13 16:48:36,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5780e70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:48:36, skipping insertion in model container [2022-12-13 16:48:36,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:48:36" (3/3) ... [2022-12-13 16:48:36,577 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_06-ptra_nr.i [2022-12-13 16:48:36,585 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 16:48:36,596 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:48:36,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-12-13 16:48:36,596 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 16:48:36,664 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 16:48:36,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 248 transitions, 501 flow [2022-12-13 16:48:36,749 INFO L130 PetriNetUnfolder]: 0/247 cut-off events. [2022-12-13 16:48:36,750 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:48:36,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 247 events. 0/247 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 93 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 16:48:36,752 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 248 transitions, 501 flow [2022-12-13 16:48:36,756 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 251 places, 247 transitions, 497 flow [2022-12-13 16:48:36,759 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:48:36,767 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 247 transitions, 497 flow [2022-12-13 16:48:36,769 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 247 transitions, 497 flow [2022-12-13 16:48:36,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 247 transitions, 497 flow [2022-12-13 16:48:36,802 INFO L130 PetriNetUnfolder]: 0/247 cut-off events. [2022-12-13 16:48:36,803 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:48:36,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 247 events. 0/247 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 93 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 16:48:36,805 INFO L119 LiptonReduction]: Number of co-enabled transitions 4828 [2022-12-13 16:49:01,519 WARN L233 SmtUtils]: Spent 6.65s on a formula simplification. DAG size of input: 113 DAG size of output: 111 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:49:09,216 WARN L233 SmtUtils]: Spent 6.09s on a formula simplification. DAG size of input: 113 DAG size of output: 111 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:49:19,768 WARN L233 SmtUtils]: Spent 8.96s on a formula simplification that was a NOOP. DAG size: 156 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:49:25,870 WARN L233 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 138 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:49:34,384 WARN L233 SmtUtils]: Spent 8.51s on a formula simplification that was a NOOP. DAG size: 156 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:49:40,370 WARN L233 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 138 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:50:01,844 WARN L233 SmtUtils]: Spent 21.46s on a formula simplification that was a NOOP. DAG size: 171 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:50:11,292 WARN L233 SmtUtils]: Spent 9.45s on a formula simplification that was a NOOP. DAG size: 161 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:50:30,168 WARN L233 SmtUtils]: Spent 18.87s on a formula simplification that was a NOOP. DAG size: 171 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:50:43,627 WARN L233 SmtUtils]: Spent 13.46s on a formula simplification that was a NOOP. DAG size: 161 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:50:53,806 WARN L233 SmtUtils]: Spent 10.17s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:51:03,247 WARN L233 SmtUtils]: Spent 9.44s on a formula simplification that was a NOOP. DAG size: 204 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:53:23,158 WARN L233 SmtUtils]: Spent 2.25m on a formula simplification. DAG size of input: 339 DAG size of output: 337 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:53:35,203 WARN L233 SmtUtils]: Spent 12.04s on a formula simplification that was a NOOP. DAG size: 295 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:54:23,706 WARN L233 SmtUtils]: Spent 48.50s on a formula simplification. DAG size of input: 339 DAG size of output: 337 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:55:13,297 WARN L233 SmtUtils]: Spent 49.59s on a formula simplification that was a NOOP. DAG size: 295 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 16:55:13,302 INFO L134 LiptonReduction]: Checked pairs total: 36302 [2022-12-13 16:55:13,302 INFO L136 LiptonReduction]: Total number of compositions: 218 [2022-12-13 16:55:13,316 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:55:13,320 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;@70c79fa6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:55:13,320 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-12-13 16:55:13,322 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 16:55:13,322 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:55:13,322 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:55:13,322 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 16:55:13,323 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:55:13,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:55:13,327 INFO L85 PathProgramCache]: Analyzing trace with hash 808, now seen corresponding path program 1 times [2022-12-13 16:55:13,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:55:13,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097757008] [2022-12-13 16:55:13,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:55:13,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:55:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:55:13,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:55:13,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:55:13,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097757008] [2022-12-13 16:55:13,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097757008] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:55:13,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:55:13,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 16:55:13,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077341901] [2022-12-13 16:55:13,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:55:13,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:55:13,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:55:13,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:55:13,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:55:13,434 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 466 [2022-12-13 16:55:13,436 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 157 flow. Second operand has 2 states, 2 states have (on average 247.5) internal successors, (495), 2 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:13,436 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:55:13,436 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 466 [2022-12-13 16:55:13,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:55:13,729 INFO L130 PetriNetUnfolder]: 105/466 cut-off events. [2022-12-13 16:55:13,729 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:55:13,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 466 events. 105/466 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2207 event pairs, 105 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 696. Up to 235 conditions per place. [2022-12-13 16:55:13,734 INFO L137 encePairwiseOnDemand]: 454/466 looper letters, 24 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2022-12-13 16:55:13,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 181 flow [2022-12-13 16:55:13,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:55:13,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 16:55:13,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 530 transitions. [2022-12-13 16:55:13,749 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5686695278969958 [2022-12-13 16:55:13,750 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 530 transitions. [2022-12-13 16:55:13,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 530 transitions. [2022-12-13 16:55:13,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:55:13,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 530 transitions. [2022-12-13 16:55:13,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 265.0) internal successors, (530), 2 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:13,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 466.0) internal successors, (1398), 3 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:13,764 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 466.0) internal successors, (1398), 3 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:13,766 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 157 flow. Second operand 2 states and 530 transitions. [2022-12-13 16:55:13,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 181 flow [2022-12-13 16:55:13,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 65 transitions, 180 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:55:13,771 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 132 flow [2022-12-13 16:55:13,773 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2022-12-13 16:55:13,776 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, -12 predicate places. [2022-12-13 16:55:13,776 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 132 flow [2022-12-13 16:55:13,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 247.5) internal successors, (495), 2 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:13,777 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:55:13,777 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 16:55:13,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:55:13,777 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:55:13,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:55:13,778 INFO L85 PathProgramCache]: Analyzing trace with hash 775962340, now seen corresponding path program 1 times [2022-12-13 16:55:13,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:55:13,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961302829] [2022-12-13 16:55:13,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:55:13,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:55:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:55:13,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:55:13,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:55:13,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961302829] [2022-12-13 16:55:13,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961302829] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:55:13,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:55:13,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:55:13,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150715853] [2022-12-13 16:55:13,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:55:13,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:55:13,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:55:13,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:55:13,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:55:14,004 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 466 [2022-12-13 16:55:14,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 232.66666666666666) internal successors, (698), 3 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:14,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:55:14,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 466 [2022-12-13 16:55:14,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:55:14,297 INFO L130 PetriNetUnfolder]: 128/519 cut-off events. [2022-12-13 16:55:14,297 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:55:14,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 519 events. 128/519 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2475 event pairs, 128 based on Foata normal form. 0/502 useless extension candidates. Maximal degree in co-relation 803. Up to 282 conditions per place. [2022-12-13 16:55:14,299 INFO L137 encePairwiseOnDemand]: 462/466 looper letters, 25 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2022-12-13 16:55:14,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 178 flow [2022-12-13 16:55:14,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:55:14,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:55:14,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 722 transitions. [2022-12-13 16:55:14,302 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5164520743919886 [2022-12-13 16:55:14,303 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 722 transitions. [2022-12-13 16:55:14,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 722 transitions. [2022-12-13 16:55:14,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:55:14,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 722 transitions. [2022-12-13 16:55:14,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:14,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 466.0) internal successors, (1864), 4 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:14,310 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 466.0) internal successors, (1864), 4 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:14,310 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 132 flow. Second operand 3 states and 722 transitions. [2022-12-13 16:55:14,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 178 flow [2022-12-13 16:55:14,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 178 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 16:55:14,312 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 128 flow [2022-12-13 16:55:14,312 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2022-12-13 16:55:14,312 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, -13 predicate places. [2022-12-13 16:55:14,313 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 128 flow [2022-12-13 16:55:14,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.66666666666666) internal successors, (698), 3 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:14,313 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:55:14,313 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:55:14,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:55:14,314 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:55:14,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:55:14,314 INFO L85 PathProgramCache]: Analyzing trace with hash -956603230, now seen corresponding path program 1 times [2022-12-13 16:55:14,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:55:14,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886499017] [2022-12-13 16:55:14,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:55:14,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:55:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:55:14,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:55:14,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:55:14,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886499017] [2022-12-13 16:55:14,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886499017] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:55:14,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:55:14,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:55:14,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409446173] [2022-12-13 16:55:14,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:55:14,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:55:14,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:55:14,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:55:14,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:55:15,039 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 466 [2022-12-13 16:55:15,040 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 190.5) internal successors, (1143), 6 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:15,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:55:15,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 466 [2022-12-13 16:55:15,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:55:15,884 INFO L130 PetriNetUnfolder]: 510/1209 cut-off events. [2022-12-13 16:55:15,884 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:55:15,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2288 conditions, 1209 events. 510/1209 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5722 event pairs, 395 based on Foata normal form. 0/1175 useless extension candidates. Maximal degree in co-relation 2284. Up to 981 conditions per place. [2022-12-13 16:55:15,890 INFO L137 encePairwiseOnDemand]: 452/466 looper letters, 75 selfloop transitions, 37 changer transitions 0/126 dead transitions. [2022-12-13 16:55:15,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 126 transitions, 480 flow [2022-12-13 16:55:15,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:55:15,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:55:15,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1247 transitions. [2022-12-13 16:55:15,893 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4459942775393419 [2022-12-13 16:55:15,893 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1247 transitions. [2022-12-13 16:55:15,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1247 transitions. [2022-12-13 16:55:15,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:55:15,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1247 transitions. [2022-12-13 16:55:15,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 207.83333333333334) internal successors, (1247), 6 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:15,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:15,900 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:15,900 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 128 flow. Second operand 6 states and 1247 transitions. [2022-12-13 16:55:15,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 126 transitions, 480 flow [2022-12-13 16:55:15,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 126 transitions, 479 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:55:15,911 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 339 flow [2022-12-13 16:55:15,911 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=76, PETRI_TRANSITIONS=98} [2022-12-13 16:55:15,912 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, -5 predicate places. [2022-12-13 16:55:15,912 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 339 flow [2022-12-13 16:55:15,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.5) internal successors, (1143), 6 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:15,913 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:55:15,913 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:55:15,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 16:55:15,913 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:55:15,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:55:15,914 INFO L85 PathProgramCache]: Analyzing trace with hash 363725091, now seen corresponding path program 1 times [2022-12-13 16:55:15,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:55:15,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819704045] [2022-12-13 16:55:15,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:55:15,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:55:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:55:16,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:55:16,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:55:16,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819704045] [2022-12-13 16:55:16,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819704045] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:55:16,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:55:16,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:55:16,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857087050] [2022-12-13 16:55:16,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:55:16,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:55:16,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:55:16,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:55:16,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:55:16,484 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 466 [2022-12-13 16:55:16,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 188.5) internal successors, (1131), 6 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:16,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:55:16,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 466 [2022-12-13 16:55:16,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:55:18,042 INFO L130 PetriNetUnfolder]: 764/1897 cut-off events. [2022-12-13 16:55:18,042 INFO L131 PetriNetUnfolder]: For 257/268 co-relation queries the response was YES. [2022-12-13 16:55:18,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4211 conditions, 1897 events. 764/1897 cut-off events. For 257/268 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11118 event pairs, 95 based on Foata normal form. 0/1830 useless extension candidates. Maximal degree in co-relation 4203. Up to 845 conditions per place. [2022-12-13 16:55:18,049 INFO L137 encePairwiseOnDemand]: 438/466 looper letters, 156 selfloop transitions, 77 changer transitions 0/262 dead transitions. [2022-12-13 16:55:18,049 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 262 transitions, 1224 flow [2022-12-13 16:55:18,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:55:18,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:55:18,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1333 transitions. [2022-12-13 16:55:18,052 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4767525035765379 [2022-12-13 16:55:18,052 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1333 transitions. [2022-12-13 16:55:18,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1333 transitions. [2022-12-13 16:55:18,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:55:18,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1333 transitions. [2022-12-13 16:55:18,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 222.16666666666666) internal successors, (1333), 6 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:18,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:18,058 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:18,058 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 339 flow. Second operand 6 states and 1333 transitions. [2022-12-13 16:55:18,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 262 transitions, 1224 flow [2022-12-13 16:55:18,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 262 transitions, 1224 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 16:55:18,066 INFO L231 Difference]: Finished difference. Result has 85 places, 171 transitions, 913 flow [2022-12-13 16:55:18,066 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=913, PETRI_PLACES=85, PETRI_TRANSITIONS=171} [2022-12-13 16:55:18,067 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 4 predicate places. [2022-12-13 16:55:18,067 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 171 transitions, 913 flow [2022-12-13 16:55:18,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.5) internal successors, (1131), 6 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:18,068 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:55:18,068 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:55:18,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 16:55:18,068 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:55:18,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:55:18,069 INFO L85 PathProgramCache]: Analyzing trace with hash 741120364, now seen corresponding path program 1 times [2022-12-13 16:55:18,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:55:18,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595317126] [2022-12-13 16:55:18,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:55:18,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:55:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:55:18,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:55:18,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:55:18,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595317126] [2022-12-13 16:55:18,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595317126] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:55:18,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:55:18,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:55:18,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469414993] [2022-12-13 16:55:18,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:55:18,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:55:18,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:55:18,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:55:18,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:55:19,390 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 466 [2022-12-13 16:55:19,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 171 transitions, 913 flow. Second operand has 10 states, 10 states have (on average 186.2) internal successors, (1862), 10 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:19,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:55:19,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 466 [2022-12-13 16:55:19,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:55:20,821 INFO L130 PetriNetUnfolder]: 900/2146 cut-off events. [2022-12-13 16:55:20,821 INFO L131 PetriNetUnfolder]: For 1541/1551 co-relation queries the response was YES. [2022-12-13 16:55:20,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6409 conditions, 2146 events. 900/2146 cut-off events. For 1541/1551 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12191 event pairs, 344 based on Foata normal form. 0/2113 useless extension candidates. Maximal degree in co-relation 6396. Up to 1524 conditions per place. [2022-12-13 16:55:20,830 INFO L137 encePairwiseOnDemand]: 452/466 looper letters, 254 selfloop transitions, 64 changer transitions 2/349 dead transitions. [2022-12-13 16:55:20,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 349 transitions, 2373 flow [2022-12-13 16:55:20,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 16:55:20,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 16:55:20,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2982 transitions. [2022-12-13 16:55:20,836 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42660944206008583 [2022-12-13 16:55:20,836 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2982 transitions. [2022-12-13 16:55:20,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2982 transitions. [2022-12-13 16:55:20,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:55:20,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2982 transitions. [2022-12-13 16:55:20,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 198.8) internal successors, (2982), 15 states have internal predecessors, (2982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:20,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 466.0) internal successors, (7456), 16 states have internal predecessors, (7456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:20,847 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 466.0) internal successors, (7456), 16 states have internal predecessors, (7456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:20,847 INFO L175 Difference]: Start difference. First operand has 85 places, 171 transitions, 913 flow. Second operand 15 states and 2982 transitions. [2022-12-13 16:55:20,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 349 transitions, 2373 flow [2022-12-13 16:55:20,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 349 transitions, 2355 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-12-13 16:55:20,860 INFO L231 Difference]: Finished difference. Result has 104 places, 203 transitions, 1299 flow [2022-12-13 16:55:20,861 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1299, PETRI_PLACES=104, PETRI_TRANSITIONS=203} [2022-12-13 16:55:20,861 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 23 predicate places. [2022-12-13 16:55:20,861 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 203 transitions, 1299 flow [2022-12-13 16:55:20,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 186.2) internal successors, (1862), 10 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:20,862 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:55:20,862 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:55:20,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 16:55:20,863 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:55:20,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:55:20,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1398893004, now seen corresponding path program 1 times [2022-12-13 16:55:20,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:55:20,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097920336] [2022-12-13 16:55:20,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:55:20,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:55:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:55:21,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:55:21,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:55:21,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097920336] [2022-12-13 16:55:21,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097920336] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:55:21,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:55:21,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:55:21,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039065527] [2022-12-13 16:55:21,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:55:21,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:55:21,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:55:21,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:55:21,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:55:21,940 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 466 [2022-12-13 16:55:21,942 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 203 transitions, 1299 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:21,942 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:55:21,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 466 [2022-12-13 16:55:21,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:55:24,276 INFO L130 PetriNetUnfolder]: 810/2017 cut-off events. [2022-12-13 16:55:24,276 INFO L131 PetriNetUnfolder]: For 2097/2109 co-relation queries the response was YES. [2022-12-13 16:55:24,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6625 conditions, 2017 events. 810/2017 cut-off events. For 2097/2109 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11874 event pairs, 90 based on Foata normal form. 21/2010 useless extension candidates. Maximal degree in co-relation 6606. Up to 660 conditions per place. [2022-12-13 16:55:24,285 INFO L137 encePairwiseOnDemand]: 441/466 looper letters, 343 selfloop transitions, 91 changer transitions 3/472 dead transitions. [2022-12-13 16:55:24,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 472 transitions, 3516 flow [2022-12-13 16:55:24,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 16:55:24,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 16:55:24,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3603 transitions. [2022-12-13 16:55:24,290 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42954220314735336 [2022-12-13 16:55:24,290 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3603 transitions. [2022-12-13 16:55:24,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3603 transitions. [2022-12-13 16:55:24,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:55:24,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3603 transitions. [2022-12-13 16:55:24,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 200.16666666666666) internal successors, (3603), 18 states have internal predecessors, (3603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:24,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 466.0) internal successors, (8854), 19 states have internal predecessors, (8854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:24,303 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 466.0) internal successors, (8854), 19 states have internal predecessors, (8854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:24,303 INFO L175 Difference]: Start difference. First operand has 104 places, 203 transitions, 1299 flow. Second operand 18 states and 3603 transitions. [2022-12-13 16:55:24,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 472 transitions, 3516 flow [2022-12-13 16:55:24,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 472 transitions, 3510 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-12-13 16:55:24,315 INFO L231 Difference]: Finished difference. Result has 127 places, 252 transitions, 1935 flow [2022-12-13 16:55:24,316 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=1293, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1935, PETRI_PLACES=127, PETRI_TRANSITIONS=252} [2022-12-13 16:55:24,316 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 46 predicate places. [2022-12-13 16:55:24,316 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 252 transitions, 1935 flow [2022-12-13 16:55:24,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:24,317 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:55:24,317 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:55:24,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 16:55:24,317 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:55:24,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:55:24,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1047703180, now seen corresponding path program 2 times [2022-12-13 16:55:24,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:55:24,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503717922] [2022-12-13 16:55:24,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:55:24,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:55:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:55:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:55:24,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:55:24,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503717922] [2022-12-13 16:55:24,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503717922] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:55:24,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:55:24,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:55:24,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549840804] [2022-12-13 16:55:24,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:55:24,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:55:24,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:55:24,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:55:24,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:55:25,493 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 466 [2022-12-13 16:55:25,494 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 252 transitions, 1935 flow. Second operand has 10 states, 10 states have (on average 185.2) internal successors, (1852), 10 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:25,494 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:55:25,494 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 466 [2022-12-13 16:55:25,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:55:27,284 INFO L130 PetriNetUnfolder]: 951/2356 cut-off events. [2022-12-13 16:55:27,284 INFO L131 PetriNetUnfolder]: For 4487/4515 co-relation queries the response was YES. [2022-12-13 16:55:27,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9045 conditions, 2356 events. 951/2356 cut-off events. For 4487/4515 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 14631 event pairs, 68 based on Foata normal form. 10/2338 useless extension candidates. Maximal degree in co-relation 9020. Up to 993 conditions per place. [2022-12-13 16:55:27,298 INFO L137 encePairwiseOnDemand]: 436/466 looper letters, 241 selfloop transitions, 118 changer transitions 0/394 dead transitions. [2022-12-13 16:55:27,298 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 394 transitions, 3450 flow [2022-12-13 16:55:27,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 16:55:27,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 16:55:27,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2070 transitions. [2022-12-13 16:55:27,303 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44420600858369097 [2022-12-13 16:55:27,303 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2070 transitions. [2022-12-13 16:55:27,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2070 transitions. [2022-12-13 16:55:27,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:55:27,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2070 transitions. [2022-12-13 16:55:27,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 207.0) internal successors, (2070), 10 states have internal predecessors, (2070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:27,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 466.0) internal successors, (5126), 11 states have internal predecessors, (5126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:27,315 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 466.0) internal successors, (5126), 11 states have internal predecessors, (5126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:27,315 INFO L175 Difference]: Start difference. First operand has 127 places, 252 transitions, 1935 flow. Second operand 10 states and 2070 transitions. [2022-12-13 16:55:27,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 394 transitions, 3450 flow [2022-12-13 16:55:27,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 394 transitions, 3448 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:55:27,344 INFO L231 Difference]: Finished difference. Result has 141 places, 273 transitions, 2652 flow [2022-12-13 16:55:27,344 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=1933, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2652, PETRI_PLACES=141, PETRI_TRANSITIONS=273} [2022-12-13 16:55:27,345 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 60 predicate places. [2022-12-13 16:55:27,345 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 273 transitions, 2652 flow [2022-12-13 16:55:27,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 185.2) internal successors, (1852), 10 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:27,346 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:55:27,346 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:55:27,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 16:55:27,346 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:55:27,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:55:27,347 INFO L85 PathProgramCache]: Analyzing trace with hash -456059618, now seen corresponding path program 3 times [2022-12-13 16:55:27,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:55:27,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360810800] [2022-12-13 16:55:27,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:55:27,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:55:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:55:27,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:55:27,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:55:27,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360810800] [2022-12-13 16:55:27,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360810800] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:55:27,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:55:27,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:55:27,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569668686] [2022-12-13 16:55:27,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:55:27,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:55:27,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:55:27,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:55:27,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:55:28,285 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 466 [2022-12-13 16:55:28,288 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 273 transitions, 2652 flow. Second operand has 10 states, 10 states have (on average 185.2) internal successors, (1852), 10 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:28,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:55:28,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 466 [2022-12-13 16:55:28,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:55:30,488 INFO L130 PetriNetUnfolder]: 1127/2797 cut-off events. [2022-12-13 16:55:30,488 INFO L131 PetriNetUnfolder]: For 8791/8865 co-relation queries the response was YES. [2022-12-13 16:55:30,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12017 conditions, 2797 events. 1127/2797 cut-off events. For 8791/8865 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 18517 event pairs, 134 based on Foata normal form. 19/2783 useless extension candidates. Maximal degree in co-relation 11985. Up to 1139 conditions per place. [2022-12-13 16:55:30,507 INFO L137 encePairwiseOnDemand]: 436/466 looper letters, 244 selfloop transitions, 133 changer transitions 0/412 dead transitions. [2022-12-13 16:55:30,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 412 transitions, 4246 flow [2022-12-13 16:55:30,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:55:30,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 16:55:30,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1884 transitions. [2022-12-13 16:55:30,510 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4492131616595136 [2022-12-13 16:55:30,510 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1884 transitions. [2022-12-13 16:55:30,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1884 transitions. [2022-12-13 16:55:30,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:55:30,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1884 transitions. [2022-12-13 16:55:30,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 209.33333333333334) internal successors, (1884), 9 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:30,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 466.0) internal successors, (4660), 10 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:30,516 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 466.0) internal successors, (4660), 10 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:30,516 INFO L175 Difference]: Start difference. First operand has 141 places, 273 transitions, 2652 flow. Second operand 9 states and 1884 transitions. [2022-12-13 16:55:30,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 412 transitions, 4246 flow [2022-12-13 16:55:30,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 412 transitions, 4238 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 16:55:30,544 INFO L231 Difference]: Finished difference. Result has 151 places, 291 transitions, 3348 flow [2022-12-13 16:55:30,545 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=2648, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3348, PETRI_PLACES=151, PETRI_TRANSITIONS=291} [2022-12-13 16:55:30,545 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 70 predicate places. [2022-12-13 16:55:30,545 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 291 transitions, 3348 flow [2022-12-13 16:55:30,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 185.2) internal successors, (1852), 10 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:30,546 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:55:30,546 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:55:30,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 16:55:30,546 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:55:30,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:55:30,546 INFO L85 PathProgramCache]: Analyzing trace with hash -683042998, now seen corresponding path program 4 times [2022-12-13 16:55:30,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:55:30,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789317737] [2022-12-13 16:55:30,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:55:30,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:55:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:55:31,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:55:31,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:55:31,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789317737] [2022-12-13 16:55:31,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789317737] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:55:31,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:55:31,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:55:31,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371661916] [2022-12-13 16:55:31,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:55:31,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:55:31,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:55:31,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:55:31,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:55:31,948 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 466 [2022-12-13 16:55:31,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 291 transitions, 3348 flow. Second operand has 10 states, 10 states have (on average 185.2) internal successors, (1852), 10 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:31,950 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:55:31,950 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 466 [2022-12-13 16:55:31,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:55:34,075 INFO L130 PetriNetUnfolder]: 1320/3251 cut-off events. [2022-12-13 16:55:34,075 INFO L131 PetriNetUnfolder]: For 15930/16021 co-relation queries the response was YES. [2022-12-13 16:55:34,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15256 conditions, 3251 events. 1320/3251 cut-off events. For 15930/16021 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 22383 event pairs, 106 based on Foata normal form. 44/3265 useless extension candidates. Maximal degree in co-relation 15220. Up to 1160 conditions per place. [2022-12-13 16:55:34,091 INFO L137 encePairwiseOnDemand]: 438/466 looper letters, 279 selfloop transitions, 162 changer transitions 0/476 dead transitions. [2022-12-13 16:55:34,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 476 transitions, 5965 flow [2022-12-13 16:55:34,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:55:34,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 16:55:34,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2204 transitions. [2022-12-13 16:55:34,094 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4299648849005072 [2022-12-13 16:55:34,094 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2204 transitions. [2022-12-13 16:55:34,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2204 transitions. [2022-12-13 16:55:34,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:55:34,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2204 transitions. [2022-12-13 16:55:34,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 200.36363636363637) internal successors, (2204), 11 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:34,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 466.0) internal successors, (5592), 12 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:34,101 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 466.0) internal successors, (5592), 12 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:34,101 INFO L175 Difference]: Start difference. First operand has 151 places, 291 transitions, 3348 flow. Second operand 11 states and 2204 transitions. [2022-12-13 16:55:34,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 476 transitions, 5965 flow [2022-12-13 16:55:34,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 476 transitions, 5833 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 16:55:34,148 INFO L231 Difference]: Finished difference. Result has 162 places, 351 transitions, 4666 flow [2022-12-13 16:55:34,148 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=3238, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4666, PETRI_PLACES=162, PETRI_TRANSITIONS=351} [2022-12-13 16:55:34,149 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 81 predicate places. [2022-12-13 16:55:34,149 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 351 transitions, 4666 flow [2022-12-13 16:55:34,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 185.2) internal successors, (1852), 10 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:34,149 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:55:34,149 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:55:34,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 16:55:34,149 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:55:34,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:55:34,150 INFO L85 PathProgramCache]: Analyzing trace with hash -96405368, now seen corresponding path program 5 times [2022-12-13 16:55:34,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:55:34,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263498771] [2022-12-13 16:55:34,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:55:34,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:55:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:55:34,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:55:34,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:55:34,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263498771] [2022-12-13 16:55:34,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263498771] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:55:34,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:55:34,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:55:34,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578878093] [2022-12-13 16:55:34,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:55:34,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:55:34,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:55:34,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:55:34,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:55:35,594 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 466 [2022-12-13 16:55:35,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 351 transitions, 4666 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:35,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:55:35,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 466 [2022-12-13 16:55:35,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:55:38,130 INFO L130 PetriNetUnfolder]: 1665/4099 cut-off events. [2022-12-13 16:55:38,130 INFO L131 PetriNetUnfolder]: For 25599/25720 co-relation queries the response was YES. [2022-12-13 16:55:38,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20149 conditions, 4099 events. 1665/4099 cut-off events. For 25599/25720 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 30304 event pairs, 198 based on Foata normal form. 51/4110 useless extension candidates. Maximal degree in co-relation 20107. Up to 1272 conditions per place. [2022-12-13 16:55:38,157 INFO L137 encePairwiseOnDemand]: 434/466 looper letters, 410 selfloop transitions, 215 changer transitions 2/662 dead transitions. [2022-12-13 16:55:38,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 662 transitions, 8596 flow [2022-12-13 16:55:38,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 16:55:38,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 16:55:38,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2912 transitions. [2022-12-13 16:55:38,161 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44635193133047213 [2022-12-13 16:55:38,161 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2912 transitions. [2022-12-13 16:55:38,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2912 transitions. [2022-12-13 16:55:38,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:55:38,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2912 transitions. [2022-12-13 16:55:38,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 208.0) internal successors, (2912), 14 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:38,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 466.0) internal successors, (6990), 15 states have internal predecessors, (6990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:38,171 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 466.0) internal successors, (6990), 15 states have internal predecessors, (6990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:38,171 INFO L175 Difference]: Start difference. First operand has 162 places, 351 transitions, 4666 flow. Second operand 14 states and 2912 transitions. [2022-12-13 16:55:38,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 662 transitions, 8596 flow [2022-12-13 16:55:38,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 662 transitions, 8527 flow, removed 29 selfloop flow, removed 3 redundant places. [2022-12-13 16:55:38,244 INFO L231 Difference]: Finished difference. Result has 184 places, 424 transitions, 6711 flow [2022-12-13 16:55:38,244 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=4604, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6711, PETRI_PLACES=184, PETRI_TRANSITIONS=424} [2022-12-13 16:55:38,244 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 103 predicate places. [2022-12-13 16:55:38,244 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 424 transitions, 6711 flow [2022-12-13 16:55:38,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:38,245 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:55:38,245 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:55:38,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 16:55:38,245 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:55:38,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:55:38,245 INFO L85 PathProgramCache]: Analyzing trace with hash -931204376, now seen corresponding path program 6 times [2022-12-13 16:55:38,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:55:38,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545219153] [2022-12-13 16:55:38,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:55:38,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:55:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:55:38,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:55:38,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:55:38,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545219153] [2022-12-13 16:55:38,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545219153] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:55:38,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:55:38,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:55:38,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490003973] [2022-12-13 16:55:38,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:55:38,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:55:38,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:55:38,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:55:38,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:55:39,326 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 466 [2022-12-13 16:55:39,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 424 transitions, 6711 flow. Second operand has 10 states, 10 states have (on average 185.2) internal successors, (1852), 10 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:39,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:55:39,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 466 [2022-12-13 16:55:39,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:55:41,687 INFO L130 PetriNetUnfolder]: 1810/4473 cut-off events. [2022-12-13 16:55:41,687 INFO L131 PetriNetUnfolder]: For 38386/38506 co-relation queries the response was YES. [2022-12-13 16:55:41,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23909 conditions, 4473 events. 1810/4473 cut-off events. For 38386/38506 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 34037 event pairs, 128 based on Foata normal form. 46/4480 useless extension candidates. Maximal degree in co-relation 23856. Up to 1692 conditions per place. [2022-12-13 16:55:41,716 INFO L137 encePairwiseOnDemand]: 437/466 looper letters, 343 selfloop transitions, 225 changer transitions 0/603 dead transitions. [2022-12-13 16:55:41,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 603 transitions, 9660 flow [2022-12-13 16:55:41,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:55:41,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 16:55:41,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2234 transitions. [2022-12-13 16:55:41,720 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43581740148263753 [2022-12-13 16:55:41,720 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2234 transitions. [2022-12-13 16:55:41,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2234 transitions. [2022-12-13 16:55:41,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:55:41,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2234 transitions. [2022-12-13 16:55:41,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 203.0909090909091) internal successors, (2234), 11 states have internal predecessors, (2234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:41,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 466.0) internal successors, (5592), 12 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:41,729 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 466.0) internal successors, (5592), 12 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:41,729 INFO L175 Difference]: Start difference. First operand has 184 places, 424 transitions, 6711 flow. Second operand 11 states and 2234 transitions. [2022-12-13 16:55:41,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 603 transitions, 9660 flow [2022-12-13 16:55:41,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 603 transitions, 9538 flow, removed 39 selfloop flow, removed 1 redundant places. [2022-12-13 16:55:41,888 INFO L231 Difference]: Finished difference. Result has 198 places, 462 transitions, 8074 flow [2022-12-13 16:55:41,888 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=6609, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=188, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8074, PETRI_PLACES=198, PETRI_TRANSITIONS=462} [2022-12-13 16:55:41,889 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 117 predicate places. [2022-12-13 16:55:41,889 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 462 transitions, 8074 flow [2022-12-13 16:55:41,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 185.2) internal successors, (1852), 10 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:41,889 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:55:41,889 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:55:41,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 16:55:41,889 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:55:41,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:55:41,889 INFO L85 PathProgramCache]: Analyzing trace with hash -482792290, now seen corresponding path program 7 times [2022-12-13 16:55:41,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:55:41,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862483698] [2022-12-13 16:55:41,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:55:41,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:55:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:55:42,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:55:42,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:55:42,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862483698] [2022-12-13 16:55:42,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862483698] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:55:42,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:55:42,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:55:42,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915450102] [2022-12-13 16:55:42,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:55:42,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:55:42,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:55:42,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:55:42,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:55:42,857 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 466 [2022-12-13 16:55:42,858 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 462 transitions, 8074 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:42,858 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:55:42,858 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 466 [2022-12-13 16:55:42,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:55:45,841 INFO L130 PetriNetUnfolder]: 2234/5518 cut-off events. [2022-12-13 16:55:45,841 INFO L131 PetriNetUnfolder]: For 60271/60447 co-relation queries the response was YES. [2022-12-13 16:55:45,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31101 conditions, 5518 events. 2234/5518 cut-off events. For 60271/60447 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 44216 event pairs, 327 based on Foata normal form. 69/5537 useless extension candidates. Maximal degree in co-relation 31042. Up to 1433 conditions per place. [2022-12-13 16:55:45,873 INFO L137 encePairwiseOnDemand]: 434/466 looper letters, 489 selfloop transitions, 272 changer transitions 2/798 dead transitions. [2022-12-13 16:55:45,873 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 798 transitions, 13269 flow [2022-12-13 16:55:45,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 16:55:45,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 16:55:45,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2898 transitions. [2022-12-13 16:55:45,876 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44420600858369097 [2022-12-13 16:55:45,876 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2898 transitions. [2022-12-13 16:55:45,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2898 transitions. [2022-12-13 16:55:45,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:55:45,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2898 transitions. [2022-12-13 16:55:45,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 207.0) internal successors, (2898), 14 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:45,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 466.0) internal successors, (6990), 15 states have internal predecessors, (6990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:45,884 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 466.0) internal successors, (6990), 15 states have internal predecessors, (6990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:45,884 INFO L175 Difference]: Start difference. First operand has 198 places, 462 transitions, 8074 flow. Second operand 14 states and 2898 transitions. [2022-12-13 16:55:45,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 798 transitions, 13269 flow [2022-12-13 16:55:46,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 798 transitions, 13140 flow, removed 32 selfloop flow, removed 4 redundant places. [2022-12-13 16:55:46,130 INFO L231 Difference]: Finished difference. Result has 219 places, 542 transitions, 10773 flow [2022-12-13 16:55:46,130 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=7961, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10773, PETRI_PLACES=219, PETRI_TRANSITIONS=542} [2022-12-13 16:55:46,131 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 138 predicate places. [2022-12-13 16:55:46,131 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 542 transitions, 10773 flow [2022-12-13 16:55:46,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:46,131 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:55:46,131 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:55:46,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 16:55:46,131 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:55:46,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:55:46,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1183236236, now seen corresponding path program 8 times [2022-12-13 16:55:46,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:55:46,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075960404] [2022-12-13 16:55:46,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:55:46,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:55:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:55:46,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:55:46,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:55:46,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075960404] [2022-12-13 16:55:46,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075960404] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:55:46,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:55:46,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:55:46,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937017596] [2022-12-13 16:55:46,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:55:46,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:55:46,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:55:46,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:55:46,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:55:47,336 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 466 [2022-12-13 16:55:47,338 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 542 transitions, 10773 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:47,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:55:47,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 466 [2022-12-13 16:55:47,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:55:51,080 INFO L130 PetriNetUnfolder]: 2579/6375 cut-off events. [2022-12-13 16:55:51,080 INFO L131 PetriNetUnfolder]: For 87159/87374 co-relation queries the response was YES. [2022-12-13 16:55:51,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38003 conditions, 6375 events. 2579/6375 cut-off events. For 87159/87374 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 53120 event pairs, 224 based on Foata normal form. 121/6440 useless extension candidates. Maximal degree in co-relation 37933. Up to 1998 conditions per place. [2022-12-13 16:55:51,127 INFO L137 encePairwiseOnDemand]: 434/466 looper letters, 494 selfloop transitions, 368 changer transitions 3/900 dead transitions. [2022-12-13 16:55:51,127 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 900 transitions, 16431 flow [2022-12-13 16:55:51,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 16:55:51,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-12-13 16:55:51,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3681 transitions. [2022-12-13 16:55:51,132 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4388412017167382 [2022-12-13 16:55:51,132 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3681 transitions. [2022-12-13 16:55:51,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3681 transitions. [2022-12-13 16:55:51,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:55:51,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3681 transitions. [2022-12-13 16:55:51,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 204.5) internal successors, (3681), 18 states have internal predecessors, (3681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:51,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 466.0) internal successors, (8854), 19 states have internal predecessors, (8854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:51,145 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 466.0) internal successors, (8854), 19 states have internal predecessors, (8854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:51,145 INFO L175 Difference]: Start difference. First operand has 219 places, 542 transitions, 10773 flow. Second operand 18 states and 3681 transitions. [2022-12-13 16:55:51,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 900 transitions, 16431 flow [2022-12-13 16:55:51,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 900 transitions, 16339 flow, removed 46 selfloop flow, removed 0 redundant places. [2022-12-13 16:55:51,580 INFO L231 Difference]: Finished difference. Result has 248 places, 642 transitions, 14438 flow [2022-12-13 16:55:51,581 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=10705, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=269, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=14438, PETRI_PLACES=248, PETRI_TRANSITIONS=642} [2022-12-13 16:55:51,581 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 167 predicate places. [2022-12-13 16:55:51,581 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 642 transitions, 14438 flow [2022-12-13 16:55:51,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:51,582 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:55:51,582 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:55:51,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 16:55:51,582 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:55:51,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:55:51,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1132157432, now seen corresponding path program 9 times [2022-12-13 16:55:51,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:55:51,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792664585] [2022-12-13 16:55:51,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:55:51,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:55:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:55:51,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:55:51,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:55:51,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792664585] [2022-12-13 16:55:51,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792664585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:55:51,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:55:51,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:55:51,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009311303] [2022-12-13 16:55:51,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:55:51,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:55:51,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:55:51,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:55:51,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:55:52,537 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 466 [2022-12-13 16:55:52,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 642 transitions, 14438 flow. Second operand has 10 states, 10 states have (on average 185.2) internal successors, (1852), 10 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:52,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:55:52,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 466 [2022-12-13 16:55:52,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:55:55,997 INFO L130 PetriNetUnfolder]: 2793/6948 cut-off events. [2022-12-13 16:55:55,997 INFO L131 PetriNetUnfolder]: For 118723/118939 co-relation queries the response was YES. [2022-12-13 16:55:56,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43997 conditions, 6948 events. 2793/6948 cut-off events. For 118723/118939 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 58985 event pairs, 377 based on Foata normal form. 76/6955 useless extension candidates. Maximal degree in co-relation 43914. Up to 2254 conditions per place. [2022-12-13 16:55:56,040 INFO L137 encePairwiseOnDemand]: 438/466 looper letters, 478 selfloop transitions, 318 changer transitions 0/831 dead transitions. [2022-12-13 16:55:56,040 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 831 transitions, 18720 flow [2022-12-13 16:55:56,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:55:56,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 16:55:56,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2204 transitions. [2022-12-13 16:55:56,043 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4299648849005072 [2022-12-13 16:55:56,043 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2204 transitions. [2022-12-13 16:55:56,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2204 transitions. [2022-12-13 16:55:56,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:55:56,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2204 transitions. [2022-12-13 16:55:56,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 200.36363636363637) internal successors, (2204), 11 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:56,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 466.0) internal successors, (5592), 12 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:56,047 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 466.0) internal successors, (5592), 12 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:56,047 INFO L175 Difference]: Start difference. First operand has 248 places, 642 transitions, 14438 flow. Second operand 11 states and 2204 transitions. [2022-12-13 16:55:56,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 831 transitions, 18720 flow [2022-12-13 16:55:56,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 831 transitions, 18576 flow, removed 63 selfloop flow, removed 4 redundant places. [2022-12-13 16:55:56,615 INFO L231 Difference]: Finished difference. Result has 262 places, 691 transitions, 16653 flow [2022-12-13 16:55:56,616 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=14303, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=642, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=271, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=16653, PETRI_PLACES=262, PETRI_TRANSITIONS=691} [2022-12-13 16:55:56,616 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 181 predicate places. [2022-12-13 16:55:56,616 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 691 transitions, 16653 flow [2022-12-13 16:55:56,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 185.2) internal successors, (1852), 10 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:56,616 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:55:56,616 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:55:56,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 16:55:56,617 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:55:56,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:55:56,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1643450220, now seen corresponding path program 10 times [2022-12-13 16:55:56,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:55:56,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486791203] [2022-12-13 16:55:56,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:55:56,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:55:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:55:56,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:55:56,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:55:56,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486791203] [2022-12-13 16:55:56,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486791203] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:55:56,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:55:56,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:55:56,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365297224] [2022-12-13 16:55:56,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:55:56,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:55:56,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:55:56,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:55:56,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:55:57,548 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 466 [2022-12-13 16:55:57,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 691 transitions, 16653 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:55:57,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:55:57,550 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 466 [2022-12-13 16:55:57,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:56:01,528 INFO L130 PetriNetUnfolder]: 3097/7695 cut-off events. [2022-12-13 16:56:01,528 INFO L131 PetriNetUnfolder]: For 151405/151613 co-relation queries the response was YES. [2022-12-13 16:56:01,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50447 conditions, 7695 events. 3097/7695 cut-off events. For 151405/151613 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 67179 event pairs, 461 based on Foata normal form. 65/7687 useless extension candidates. Maximal degree in co-relation 50356. Up to 2537 conditions per place. [2022-12-13 16:56:01,583 INFO L137 encePairwiseOnDemand]: 437/466 looper letters, 465 selfloop transitions, 439 changer transitions 2/941 dead transitions. [2022-12-13 16:56:01,583 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 941 transitions, 21860 flow [2022-12-13 16:56:01,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 16:56:01,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 16:56:01,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2641 transitions. [2022-12-13 16:56:01,586 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43595245955760975 [2022-12-13 16:56:01,586 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2641 transitions. [2022-12-13 16:56:01,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2641 transitions. [2022-12-13 16:56:01,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:56:01,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2641 transitions. [2022-12-13 16:56:01,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 203.15384615384616) internal successors, (2641), 13 states have internal predecessors, (2641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:01,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 466.0) internal successors, (6524), 14 states have internal predecessors, (6524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:01,591 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 466.0) internal successors, (6524), 14 states have internal predecessors, (6524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:01,591 INFO L175 Difference]: Start difference. First operand has 262 places, 691 transitions, 16653 flow. Second operand 13 states and 2641 transitions. [2022-12-13 16:56:01,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 941 transitions, 21860 flow [2022-12-13 16:56:02,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 941 transitions, 21687 flow, removed 86 selfloop flow, removed 1 redundant places. [2022-12-13 16:56:02,388 INFO L231 Difference]: Finished difference. Result has 284 places, 763 transitions, 20245 flow [2022-12-13 16:56:02,388 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=16494, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=367, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=20245, PETRI_PLACES=284, PETRI_TRANSITIONS=763} [2022-12-13 16:56:02,388 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 203 predicate places. [2022-12-13 16:56:02,388 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 763 transitions, 20245 flow [2022-12-13 16:56:02,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:02,389 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:56:02,389 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:56:02,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 16:56:02,389 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:56:02,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:56:02,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1380318810, now seen corresponding path program 11 times [2022-12-13 16:56:02,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:56:02,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966905121] [2022-12-13 16:56:02,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:56:02,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:56:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:56:02,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:56:02,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:56:02,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966905121] [2022-12-13 16:56:02,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966905121] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:56:02,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:56:02,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:56:02,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909704817] [2022-12-13 16:56:02,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:56:02,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:56:02,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:56:02,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:56:02,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:56:03,552 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 466 [2022-12-13 16:56:03,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 763 transitions, 20245 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:03,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:56:03,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 466 [2022-12-13 16:56:03,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:56:08,474 INFO L130 PetriNetUnfolder]: 3403/8484 cut-off events. [2022-12-13 16:56:08,474 INFO L131 PetriNetUnfolder]: For 208897/209125 co-relation queries the response was YES. [2022-12-13 16:56:08,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59004 conditions, 8484 events. 3403/8484 cut-off events. For 208897/209125 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 75998 event pairs, 518 based on Foata normal form. 75/8481 useless extension candidates. Maximal degree in co-relation 58903. Up to 2480 conditions per place. [2022-12-13 16:56:08,538 INFO L137 encePairwiseOnDemand]: 435/466 looper letters, 548 selfloop transitions, 477 changer transitions 2/1062 dead transitions. [2022-12-13 16:56:08,538 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 1062 transitions, 26597 flow [2022-12-13 16:56:08,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 16:56:08,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 16:56:08,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2867 transitions. [2022-12-13 16:56:08,542 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4394543225015328 [2022-12-13 16:56:08,542 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2867 transitions. [2022-12-13 16:56:08,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2867 transitions. [2022-12-13 16:56:08,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:56:08,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2867 transitions. [2022-12-13 16:56:08,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 204.78571428571428) internal successors, (2867), 14 states have internal predecessors, (2867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:08,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 466.0) internal successors, (6990), 15 states have internal predecessors, (6990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:08,548 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 466.0) internal successors, (6990), 15 states have internal predecessors, (6990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:08,548 INFO L175 Difference]: Start difference. First operand has 284 places, 763 transitions, 20245 flow. Second operand 14 states and 2867 transitions. [2022-12-13 16:56:08,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 1062 transitions, 26597 flow [2022-12-13 16:56:09,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 1062 transitions, 26338 flow, removed 52 selfloop flow, removed 1 redundant places. [2022-12-13 16:56:09,589 INFO L231 Difference]: Finished difference. Result has 307 places, 830 transitions, 24158 flow [2022-12-13 16:56:09,589 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=20042, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=763, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=414, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=24158, PETRI_PLACES=307, PETRI_TRANSITIONS=830} [2022-12-13 16:56:09,590 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 226 predicate places. [2022-12-13 16:56:09,590 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 830 transitions, 24158 flow [2022-12-13 16:56:09,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:09,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:56:09,590 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:56:09,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 16:56:09,590 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:56:09,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:56:09,591 INFO L85 PathProgramCache]: Analyzing trace with hash -734824150, now seen corresponding path program 12 times [2022-12-13 16:56:09,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:56:09,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422951016] [2022-12-13 16:56:09,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:56:09,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:56:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:56:09,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:56:10,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:56:10,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422951016] [2022-12-13 16:56:10,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422951016] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:56:10,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:56:10,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:56:10,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904664575] [2022-12-13 16:56:10,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:56:10,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:56:10,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:56:10,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:56:10,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:56:10,633 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 466 [2022-12-13 16:56:10,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 830 transitions, 24158 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:10,635 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:56:10,635 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 466 [2022-12-13 16:56:10,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:56:16,129 INFO L130 PetriNetUnfolder]: 3620/9057 cut-off events. [2022-12-13 16:56:16,129 INFO L131 PetriNetUnfolder]: For 258887/259133 co-relation queries the response was YES. [2022-12-13 16:56:16,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65675 conditions, 9057 events. 3620/9057 cut-off events. For 258887/259133 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 82597 event pairs, 465 based on Foata normal form. 69/9041 useless extension candidates. Maximal degree in co-relation 65563. Up to 3109 conditions per place. [2022-12-13 16:56:16,240 INFO L137 encePairwiseOnDemand]: 435/466 looper letters, 514 selfloop transitions, 558 changer transitions 2/1109 dead transitions. [2022-12-13 16:56:16,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 1109 transitions, 30008 flow [2022-12-13 16:56:16,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 16:56:16,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 16:56:16,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2880 transitions. [2022-12-13 16:56:16,243 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4414469650521153 [2022-12-13 16:56:16,243 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2880 transitions. [2022-12-13 16:56:16,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2880 transitions. [2022-12-13 16:56:16,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:56:16,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2880 transitions. [2022-12-13 16:56:16,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 205.71428571428572) internal successors, (2880), 14 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:16,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 466.0) internal successors, (6990), 15 states have internal predecessors, (6990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:16,249 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 466.0) internal successors, (6990), 15 states have internal predecessors, (6990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:16,249 INFO L175 Difference]: Start difference. First operand has 307 places, 830 transitions, 24158 flow. Second operand 14 states and 2880 transitions. [2022-12-13 16:56:16,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 1109 transitions, 30008 flow [2022-12-13 16:56:17,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 1109 transitions, 29830 flow, removed 79 selfloop flow, removed 1 redundant places. [2022-12-13 16:56:17,910 INFO L231 Difference]: Finished difference. Result has 331 places, 889 transitions, 28240 flow [2022-12-13 16:56:17,911 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=24016, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=830, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=501, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=28240, PETRI_PLACES=331, PETRI_TRANSITIONS=889} [2022-12-13 16:56:17,911 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 250 predicate places. [2022-12-13 16:56:17,911 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 889 transitions, 28240 flow [2022-12-13 16:56:17,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:17,911 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:56:17,912 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:56:17,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 16:56:17,912 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:56:17,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:56:17,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1632350670, now seen corresponding path program 13 times [2022-12-13 16:56:17,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:56:17,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778575043] [2022-12-13 16:56:17,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:56:17,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:56:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:56:18,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:56:18,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:56:18,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778575043] [2022-12-13 16:56:18,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778575043] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:56:18,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:56:18,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:56:18,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849464086] [2022-12-13 16:56:18,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:56:18,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:56:18,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:56:18,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:56:18,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:56:18,819 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 466 [2022-12-13 16:56:18,820 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 889 transitions, 28240 flow. Second operand has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:18,820 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:56:18,820 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 466 [2022-12-13 16:56:18,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:56:24,672 INFO L130 PetriNetUnfolder]: 3821/9549 cut-off events. [2022-12-13 16:56:24,672 INFO L131 PetriNetUnfolder]: For 324167/324429 co-relation queries the response was YES. [2022-12-13 16:56:24,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72774 conditions, 9549 events. 3821/9549 cut-off events. For 324167/324429 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 88122 event pairs, 603 based on Foata normal form. 87/9546 useless extension candidates. Maximal degree in co-relation 72650. Up to 2921 conditions per place. [2022-12-13 16:56:24,754 INFO L137 encePairwiseOnDemand]: 436/466 looper letters, 541 selfloop transitions, 556 changer transitions 2/1134 dead transitions. [2022-12-13 16:56:24,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 1134 transitions, 33951 flow [2022-12-13 16:56:24,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 16:56:24,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 16:56:24,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2844 transitions. [2022-12-13 16:56:24,757 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43592887798896385 [2022-12-13 16:56:24,757 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2844 transitions. [2022-12-13 16:56:24,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2844 transitions. [2022-12-13 16:56:24,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:56:24,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2844 transitions. [2022-12-13 16:56:24,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 203.14285714285714) internal successors, (2844), 14 states have internal predecessors, (2844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:24,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 466.0) internal successors, (6990), 15 states have internal predecessors, (6990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:24,763 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 466.0) internal successors, (6990), 15 states have internal predecessors, (6990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:24,763 INFO L175 Difference]: Start difference. First operand has 331 places, 889 transitions, 28240 flow. Second operand 14 states and 2844 transitions. [2022-12-13 16:56:24,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 1134 transitions, 33951 flow [2022-12-13 16:56:27,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 1134 transitions, 33819 flow, removed 66 selfloop flow, removed 0 redundant places. [2022-12-13 16:56:27,093 INFO L231 Difference]: Finished difference. Result has 354 places, 937 transitions, 32201 flow [2022-12-13 16:56:27,094 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=28124, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=889, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=508, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=32201, PETRI_PLACES=354, PETRI_TRANSITIONS=937} [2022-12-13 16:56:27,094 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 273 predicate places. [2022-12-13 16:56:27,094 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 937 transitions, 32201 flow [2022-12-13 16:56:27,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.2) internal successors, (1842), 10 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:27,094 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:56:27,094 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:56:27,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 16:56:27,095 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:56:27,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:56:27,095 INFO L85 PathProgramCache]: Analyzing trace with hash 482288712, now seen corresponding path program 1 times [2022-12-13 16:56:27,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:56:27,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942706755] [2022-12-13 16:56:27,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:56:27,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:56:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:56:27,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:56:27,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:56:27,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942706755] [2022-12-13 16:56:27,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942706755] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:56:27,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:56:27,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:56:27,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481475239] [2022-12-13 16:56:27,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:56:27,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:56:27,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:56:27,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:56:27,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:56:27,653 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 466 [2022-12-13 16:56:27,654 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 937 transitions, 32201 flow. Second operand has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:27,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:56:27,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 466 [2022-12-13 16:56:27,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:56:33,689 INFO L130 PetriNetUnfolder]: 5331/12507 cut-off events. [2022-12-13 16:56:33,689 INFO L131 PetriNetUnfolder]: For 442345/442655 co-relation queries the response was YES. [2022-12-13 16:56:33,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92113 conditions, 12507 events. 5331/12507 cut-off events. For 442345/442655 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 112769 event pairs, 2113 based on Foata normal form. 0/12264 useless extension candidates. Maximal degree in co-relation 91979. Up to 10030 conditions per place. [2022-12-13 16:56:33,806 INFO L137 encePairwiseOnDemand]: 452/466 looper letters, 805 selfloop transitions, 153 changer transitions 0/1141 dead transitions. [2022-12-13 16:56:33,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 1141 transitions, 39701 flow [2022-12-13 16:56:33,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:56:33,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:56:33,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1248 transitions. [2022-12-13 16:56:33,808 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44635193133047213 [2022-12-13 16:56:33,808 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1248 transitions. [2022-12-13 16:56:33,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1248 transitions. [2022-12-13 16:56:33,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:56:33,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1248 transitions. [2022-12-13 16:56:33,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.0) internal successors, (1248), 6 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:33,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:33,811 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:33,812 INFO L175 Difference]: Start difference. First operand has 354 places, 937 transitions, 32201 flow. Second operand 6 states and 1248 transitions. [2022-12-13 16:56:33,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 1141 transitions, 39701 flow [2022-12-13 16:56:37,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 1141 transitions, 39428 flow, removed 97 selfloop flow, removed 2 redundant places. [2022-12-13 16:56:37,118 INFO L231 Difference]: Finished difference. Result has 361 places, 1041 transitions, 34762 flow [2022-12-13 16:56:37,118 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=32006, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=937, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=841, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=34762, PETRI_PLACES=361, PETRI_TRANSITIONS=1041} [2022-12-13 16:56:37,119 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 280 predicate places. [2022-12-13 16:56:37,119 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 1041 transitions, 34762 flow [2022-12-13 16:56:37,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:37,119 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:56:37,119 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:56:37,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 16:56:37,120 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:56:37,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:56:37,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1932957174, now seen corresponding path program 1 times [2022-12-13 16:56:37,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:56:37,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53325731] [2022-12-13 16:56:37,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:56:37,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:56:37,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:56:37,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:56:37,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:56:37,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53325731] [2022-12-13 16:56:37,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53325731] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:56:37,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:56:37,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:56:37,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100146220] [2022-12-13 16:56:37,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:56:37,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:56:37,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:56:37,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:56:37,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:56:37,685 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 466 [2022-12-13 16:56:37,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 1041 transitions, 34762 flow. Second operand has 6 states, 6 states have (on average 196.83333333333334) internal successors, (1181), 6 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:37,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:56:37,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 466 [2022-12-13 16:56:37,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:56:45,664 INFO L130 PetriNetUnfolder]: 6992/16069 cut-off events. [2022-12-13 16:56:45,664 INFO L131 PetriNetUnfolder]: For 599396/600094 co-relation queries the response was YES. [2022-12-13 16:56:45,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124703 conditions, 16069 events. 6992/16069 cut-off events. For 599396/600094 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 150753 event pairs, 692 based on Foata normal form. 112/15776 useless extension candidates. Maximal degree in co-relation 124565. Up to 9460 conditions per place. [2022-12-13 16:56:45,841 INFO L137 encePairwiseOnDemand]: 444/466 looper letters, 849 selfloop transitions, 669 changer transitions 4/1797 dead transitions. [2022-12-13 16:56:45,841 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 1797 transitions, 66153 flow [2022-12-13 16:56:45,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:56:45,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:56:45,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1341 transitions. [2022-12-13 16:56:45,843 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4796137339055794 [2022-12-13 16:56:45,843 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1341 transitions. [2022-12-13 16:56:45,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1341 transitions. [2022-12-13 16:56:45,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:56:45,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1341 transitions. [2022-12-13 16:56:45,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 223.5) internal successors, (1341), 6 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:45,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:45,847 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:45,847 INFO L175 Difference]: Start difference. First operand has 361 places, 1041 transitions, 34762 flow. Second operand 6 states and 1341 transitions. [2022-12-13 16:56:45,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 1797 transitions, 66153 flow [2022-12-13 16:56:50,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 1797 transitions, 65825 flow, removed 164 selfloop flow, removed 0 redundant places. [2022-12-13 16:56:50,782 INFO L231 Difference]: Finished difference. Result has 371 places, 1553 transitions, 58917 flow [2022-12-13 16:56:50,783 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=34434, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1041, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=247, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=768, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=58917, PETRI_PLACES=371, PETRI_TRANSITIONS=1553} [2022-12-13 16:56:50,783 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 290 predicate places. [2022-12-13 16:56:50,783 INFO L495 AbstractCegarLoop]: Abstraction has has 371 places, 1553 transitions, 58917 flow [2022-12-13 16:56:50,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 196.83333333333334) internal successors, (1181), 6 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:50,784 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:56:50,784 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] [2022-12-13 16:56:50,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 16:56:50,784 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:56:50,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:56:50,784 INFO L85 PathProgramCache]: Analyzing trace with hash 2077405970, now seen corresponding path program 1 times [2022-12-13 16:56:50,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:56:50,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079835206] [2022-12-13 16:56:50,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:56:50,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:56:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:56:51,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:56:51,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:56:51,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079835206] [2022-12-13 16:56:51,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079835206] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:56:51,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:56:51,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:56:51,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716917589] [2022-12-13 16:56:51,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:56:51,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:56:51,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:56:51,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:56:51,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:56:52,030 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 466 [2022-12-13 16:56:52,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 1553 transitions, 58917 flow. Second operand has 10 states, 10 states have (on average 186.5) internal successors, (1865), 10 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:56:52,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:56:52,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 466 [2022-12-13 16:56:52,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:57:03,396 INFO L130 PetriNetUnfolder]: 7456/16911 cut-off events. [2022-12-13 16:57:03,396 INFO L131 PetriNetUnfolder]: For 626128/626731 co-relation queries the response was YES. [2022-12-13 16:57:03,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139522 conditions, 16911 events. 7456/16911 cut-off events. For 626128/626731 co-relation queries the response was YES. Maximal size of possible extension queue 606. Compared 156178 event pairs, 1812 based on Foata normal form. 6/16644 useless extension candidates. Maximal degree in co-relation 139379. Up to 11397 conditions per place. [2022-12-13 16:57:03,644 INFO L137 encePairwiseOnDemand]: 452/466 looper letters, 1051 selfloop transitions, 439 changer transitions 2/1810 dead transitions. [2022-12-13 16:57:03,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 1810 transitions, 67298 flow [2022-12-13 16:57:03,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 16:57:03,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 16:57:03,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2985 transitions. [2022-12-13 16:57:03,648 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4270386266094421 [2022-12-13 16:57:03,648 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2985 transitions. [2022-12-13 16:57:03,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2985 transitions. [2022-12-13 16:57:03,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:57:03,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2985 transitions. [2022-12-13 16:57:03,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 199.0) internal successors, (2985), 15 states have internal predecessors, (2985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:57:03,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 466.0) internal successors, (7456), 16 states have internal predecessors, (7456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:57:03,654 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 466.0) internal successors, (7456), 16 states have internal predecessors, (7456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:57:03,654 INFO L175 Difference]: Start difference. First operand has 371 places, 1553 transitions, 58917 flow. Second operand 15 states and 2985 transitions. [2022-12-13 16:57:03,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 1810 transitions, 67298 flow [2022-12-13 16:57:09,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 1810 transitions, 66572 flow, removed 363 selfloop flow, removed 0 redundant places. [2022-12-13 16:57:09,482 INFO L231 Difference]: Finished difference. Result has 389 places, 1633 transitions, 61391 flow [2022-12-13 16:57:09,483 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=58215, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1553, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=365, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=61391, PETRI_PLACES=389, PETRI_TRANSITIONS=1633} [2022-12-13 16:57:09,483 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 308 predicate places. [2022-12-13 16:57:09,484 INFO L495 AbstractCegarLoop]: Abstraction has has 389 places, 1633 transitions, 61391 flow [2022-12-13 16:57:09,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 186.5) internal successors, (1865), 10 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:57:09,484 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:57:09,484 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] [2022-12-13 16:57:09,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 16:57:09,484 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:57:09,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:09,484 INFO L85 PathProgramCache]: Analyzing trace with hash 522542520, now seen corresponding path program 1 times [2022-12-13 16:57:09,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:09,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871151647] [2022-12-13 16:57:09,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:09,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:10,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:57:10,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:57:10,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871151647] [2022-12-13 16:57:10,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871151647] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:57:10,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:57:10,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:57:10,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737697162] [2022-12-13 16:57:10,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:57:10,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 16:57:10,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:57:10,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 16:57:10,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:57:11,370 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 466 [2022-12-13 16:57:11,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 1633 transitions, 61391 flow. Second operand has 11 states, 11 states have (on average 184.63636363636363) internal successors, (2031), 11 states have internal predecessors, (2031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:57:11,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:57:11,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 466 [2022-12-13 16:57:11,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:57:23,700 INFO L130 PetriNetUnfolder]: 7404/16642 cut-off events. [2022-12-13 16:57:23,701 INFO L131 PetriNetUnfolder]: For 648748/649177 co-relation queries the response was YES. [2022-12-13 16:57:23,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139451 conditions, 16642 events. 7404/16642 cut-off events. For 648748/649177 co-relation queries the response was YES. Maximal size of possible extension queue 599. Compared 151852 event pairs, 1733 based on Foata normal form. 6/16594 useless extension candidates. Maximal degree in co-relation 139303. Up to 8960 conditions per place. [2022-12-13 16:57:23,931 INFO L137 encePairwiseOnDemand]: 456/466 looper letters, 846 selfloop transitions, 722 changer transitions 2/1939 dead transitions. [2022-12-13 16:57:23,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 1939 transitions, 71620 flow [2022-12-13 16:57:23,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 16:57:23,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 16:57:23,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2943 transitions. [2022-12-13 16:57:23,935 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4210300429184549 [2022-12-13 16:57:23,935 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2943 transitions. [2022-12-13 16:57:23,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2943 transitions. [2022-12-13 16:57:23,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:57:23,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2943 transitions. [2022-12-13 16:57:23,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 196.2) internal successors, (2943), 15 states have internal predecessors, (2943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:57:23,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 466.0) internal successors, (7456), 16 states have internal predecessors, (7456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:57:23,942 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 466.0) internal successors, (7456), 16 states have internal predecessors, (7456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:57:23,942 INFO L175 Difference]: Start difference. First operand has 389 places, 1633 transitions, 61391 flow. Second operand 15 states and 2943 transitions. [2022-12-13 16:57:23,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 1939 transitions, 71620 flow [2022-12-13 16:57:29,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 1939 transitions, 71545 flow, removed 14 selfloop flow, removed 3 redundant places. [2022-12-13 16:57:30,037 INFO L231 Difference]: Finished difference. Result has 399 places, 1714 transitions, 65444 flow [2022-12-13 16:57:30,038 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=61310, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=640, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=992, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=65444, PETRI_PLACES=399, PETRI_TRANSITIONS=1714} [2022-12-13 16:57:30,038 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 318 predicate places. [2022-12-13 16:57:30,038 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 1714 transitions, 65444 flow [2022-12-13 16:57:30,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 184.63636363636363) internal successors, (2031), 11 states have internal predecessors, (2031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:57:30,039 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:57:30,039 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] [2022-12-13 16:57:30,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 16:57:30,039 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:57:30,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:30,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1809202065, now seen corresponding path program 1 times [2022-12-13 16:57:30,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:30,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398293598] [2022-12-13 16:57:30,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:30,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:30,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:57:30,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:57:30,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398293598] [2022-12-13 16:57:30,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398293598] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:57:30,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:57:30,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:57:30,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572918945] [2022-12-13 16:57:30,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:57:30,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:57:30,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:57:30,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:57:30,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:57:31,007 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 466 [2022-12-13 16:57:31,008 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 1714 transitions, 65444 flow. Second operand has 10 states, 10 states have (on average 192.4) internal successors, (1924), 10 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:57:31,008 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:57:31,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 466 [2022-12-13 16:57:31,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:57:42,630 INFO L130 PetriNetUnfolder]: 6665/15159 cut-off events. [2022-12-13 16:57:42,630 INFO L131 PetriNetUnfolder]: For 683686/684135 co-relation queries the response was YES. [2022-12-13 16:57:42,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136763 conditions, 15159 events. 6665/15159 cut-off events. For 683686/684135 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 138762 event pairs, 656 based on Foata normal form. 447/15563 useless extension candidates. Maximal degree in co-relation 136614. Up to 4639 conditions per place. [2022-12-13 16:57:42,835 INFO L137 encePairwiseOnDemand]: 447/466 looper letters, 1213 selfloop transitions, 538 changer transitions 7/2032 dead transitions. [2022-12-13 16:57:42,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 2032 transitions, 76232 flow [2022-12-13 16:57:42,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 16:57:42,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-12-13 16:57:42,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4273 transitions. [2022-12-13 16:57:42,840 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4366441855712242 [2022-12-13 16:57:42,840 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4273 transitions. [2022-12-13 16:57:42,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4273 transitions. [2022-12-13 16:57:42,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:57:42,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4273 transitions. [2022-12-13 16:57:42,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 203.47619047619048) internal successors, (4273), 21 states have internal predecessors, (4273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:57:42,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 466.0) internal successors, (10252), 22 states have internal predecessors, (10252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:57:42,850 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 466.0) internal successors, (10252), 22 states have internal predecessors, (10252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:57:42,850 INFO L175 Difference]: Start difference. First operand has 399 places, 1714 transitions, 65444 flow. Second operand 21 states and 4273 transitions. [2022-12-13 16:57:42,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 2032 transitions, 76232 flow [2022-12-13 16:57:49,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 2032 transitions, 75108 flow, removed 6 selfloop flow, removed 9 redundant places. [2022-12-13 16:57:49,372 INFO L231 Difference]: Finished difference. Result has 415 places, 1804 transitions, 70101 flow [2022-12-13 16:57:49,373 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=64400, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1714, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=459, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=70101, PETRI_PLACES=415, PETRI_TRANSITIONS=1804} [2022-12-13 16:57:49,374 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 334 predicate places. [2022-12-13 16:57:49,374 INFO L495 AbstractCegarLoop]: Abstraction has has 415 places, 1804 transitions, 70101 flow [2022-12-13 16:57:49,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 192.4) internal successors, (1924), 10 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:57:49,374 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:57:49,374 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] [2022-12-13 16:57:49,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 16:57:49,374 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:57:49,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:49,375 INFO L85 PathProgramCache]: Analyzing trace with hash -681480154, now seen corresponding path program 1 times [2022-12-13 16:57:49,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:49,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444665171] [2022-12-13 16:57:49,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:49,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:49,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:49,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:57:49,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:57:49,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444665171] [2022-12-13 16:57:49,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444665171] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:57:49,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:57:49,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:57:49,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772248875] [2022-12-13 16:57:49,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:57:49,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:57:49,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:57:49,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:57:49,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:57:50,480 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 466 [2022-12-13 16:57:50,482 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 1804 transitions, 70101 flow. Second operand has 10 states, 10 states have (on average 184.8) internal successors, (1848), 10 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:57:50,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:57:50,482 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 466 [2022-12-13 16:57:50,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:58:03,856 INFO L130 PetriNetUnfolder]: 6556/15413 cut-off events. [2022-12-13 16:58:03,856 INFO L131 PetriNetUnfolder]: For 759143/759621 co-relation queries the response was YES. [2022-12-13 16:58:03,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146703 conditions, 15413 events. 6556/15413 cut-off events. For 759143/759621 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 145424 event pairs, 677 based on Foata normal form. 252/15565 useless extension candidates. Maximal degree in co-relation 146549. Up to 4845 conditions per place. [2022-12-13 16:58:04,038 INFO L137 encePairwiseOnDemand]: 434/466 looper letters, 977 selfloop transitions, 1171 changer transitions 6/2220 dead transitions. [2022-12-13 16:58:04,039 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 2220 transitions, 81107 flow [2022-12-13 16:58:04,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 16:58:04,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-12-13 16:58:04,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3482 transitions. [2022-12-13 16:58:04,044 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4395354708406968 [2022-12-13 16:58:04,044 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3482 transitions. [2022-12-13 16:58:04,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3482 transitions. [2022-12-13 16:58:04,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:58:04,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3482 transitions. [2022-12-13 16:58:04,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 204.8235294117647) internal successors, (3482), 17 states have internal predecessors, (3482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:58:04,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 466.0) internal successors, (8388), 18 states have internal predecessors, (8388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:58:04,056 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 466.0) internal successors, (8388), 18 states have internal predecessors, (8388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:58:04,056 INFO L175 Difference]: Start difference. First operand has 415 places, 1804 transitions, 70101 flow. Second operand 17 states and 3482 transitions. [2022-12-13 16:58:04,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 2220 transitions, 81107 flow [2022-12-13 16:58:11,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 2220 transitions, 81026 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-12-13 16:58:11,577 INFO L231 Difference]: Finished difference. Result has 438 places, 1889 transitions, 78366 flow [2022-12-13 16:58:11,577 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=70020, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1804, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1086, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=666, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=78366, PETRI_PLACES=438, PETRI_TRANSITIONS=1889} [2022-12-13 16:58:11,578 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 357 predicate places. [2022-12-13 16:58:11,578 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 1889 transitions, 78366 flow [2022-12-13 16:58:11,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.8) internal successors, (1848), 10 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:58:11,578 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:58:11,578 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] [2022-12-13 16:58:11,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 16:58:11,578 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:58:11,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:58:11,579 INFO L85 PathProgramCache]: Analyzing trace with hash -953433798, now seen corresponding path program 2 times [2022-12-13 16:58:11,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:58:11,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837272760] [2022-12-13 16:58:11,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:58:11,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:58:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:58:11,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:58:11,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:58:11,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837272760] [2022-12-13 16:58:11,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837272760] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:58:11,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:58:11,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:58:11,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361614246] [2022-12-13 16:58:11,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:58:11,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:58:11,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:58:11,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:58:11,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:58:12,826 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 466 [2022-12-13 16:58:12,828 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 1889 transitions, 78366 flow. Second operand has 10 states, 10 states have (on average 184.8) internal successors, (1848), 10 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:58:12,828 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:58:12,828 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 466 [2022-12-13 16:58:12,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:58:27,060 INFO L130 PetriNetUnfolder]: 6872/16169 cut-off events. [2022-12-13 16:58:27,060 INFO L131 PetriNetUnfolder]: For 916912/917433 co-relation queries the response was YES. [2022-12-13 16:58:27,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160598 conditions, 16169 events. 6872/16169 cut-off events. For 916912/917433 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 154098 event pairs, 758 based on Foata normal form. 272/16334 useless extension candidates. Maximal degree in co-relation 160433. Up to 4595 conditions per place. [2022-12-13 16:58:27,271 INFO L137 encePairwiseOnDemand]: 434/466 looper letters, 1056 selfloop transitions, 1176 changer transitions 5/2303 dead transitions. [2022-12-13 16:58:27,271 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 2303 transitions, 89942 flow [2022-12-13 16:58:27,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 16:58:27,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-12-13 16:58:27,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3281 transitions. [2022-12-13 16:58:27,274 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44004828326180256 [2022-12-13 16:58:27,274 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3281 transitions. [2022-12-13 16:58:27,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3281 transitions. [2022-12-13 16:58:27,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:58:27,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3281 transitions. [2022-12-13 16:58:27,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 205.0625) internal successors, (3281), 16 states have internal predecessors, (3281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:58:27,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 466.0) internal successors, (7922), 17 states have internal predecessors, (7922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:58:27,281 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 466.0) internal successors, (7922), 17 states have internal predecessors, (7922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:58:27,281 INFO L175 Difference]: Start difference. First operand has 438 places, 1889 transitions, 78366 flow. Second operand 16 states and 3281 transitions. [2022-12-13 16:58:27,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 2303 transitions, 89942 flow [2022-12-13 16:58:35,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 2303 transitions, 88913 flow, removed 70 selfloop flow, removed 5 redundant places. [2022-12-13 16:58:35,754 INFO L231 Difference]: Finished difference. Result has 458 places, 1975 transitions, 85944 flow [2022-12-13 16:58:35,755 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=77396, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1889, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1090, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=746, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=85944, PETRI_PLACES=458, PETRI_TRANSITIONS=1975} [2022-12-13 16:58:35,755 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 377 predicate places. [2022-12-13 16:58:35,755 INFO L495 AbstractCegarLoop]: Abstraction has has 458 places, 1975 transitions, 85944 flow [2022-12-13 16:58:35,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.8) internal successors, (1848), 10 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:58:35,756 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:58:35,756 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] [2022-12-13 16:58:35,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 16:58:35,756 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:58:35,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:58:35,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1056286050, now seen corresponding path program 3 times [2022-12-13 16:58:35,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:58:35,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295626604] [2022-12-13 16:58:35,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:58:35,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:58:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:58:36,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:58:36,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:58:36,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295626604] [2022-12-13 16:58:36,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295626604] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:58:36,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:58:36,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:58:36,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597806872] [2022-12-13 16:58:36,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:58:36,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:58:36,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:58:36,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:58:36,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:58:37,072 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 466 [2022-12-13 16:58:37,072 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 1975 transitions, 85944 flow. Second operand has 10 states, 10 states have (on average 184.8) internal successors, (1848), 10 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:58:37,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:58:37,073 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 466 [2022-12-13 16:58:37,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:58:52,618 INFO L130 PetriNetUnfolder]: 7114/16788 cut-off events. [2022-12-13 16:58:52,618 INFO L131 PetriNetUnfolder]: For 1043715/1044282 co-relation queries the response was YES. [2022-12-13 16:58:52,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172195 conditions, 16788 events. 7114/16788 cut-off events. For 1043715/1044282 co-relation queries the response was YES. Maximal size of possible extension queue 578. Compared 161400 event pairs, 1038 based on Foata normal form. 289/16965 useless extension candidates. Maximal degree in co-relation 172020. Up to 6408 conditions per place. [2022-12-13 16:58:52,891 INFO L137 encePairwiseOnDemand]: 434/466 looper letters, 1270 selfloop transitions, 1019 changer transitions 4/2359 dead transitions. [2022-12-13 16:58:52,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 2359 transitions, 97745 flow [2022-12-13 16:58:52,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 16:58:52,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 16:58:52,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2880 transitions. [2022-12-13 16:58:52,894 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4414469650521153 [2022-12-13 16:58:52,895 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2880 transitions. [2022-12-13 16:58:52,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2880 transitions. [2022-12-13 16:58:52,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:58:52,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2880 transitions. [2022-12-13 16:58:52,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 205.71428571428572) internal successors, (2880), 14 states have internal predecessors, (2880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:58:52,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 466.0) internal successors, (6990), 15 states have internal predecessors, (6990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:58:52,901 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 466.0) internal successors, (6990), 15 states have internal predecessors, (6990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:58:52,901 INFO L175 Difference]: Start difference. First operand has 458 places, 1975 transitions, 85944 flow. Second operand 14 states and 2880 transitions. [2022-12-13 16:58:52,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 2359 transitions, 97745 flow [2022-12-13 16:59:03,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 2359 transitions, 97612 flow, removed 59 selfloop flow, removed 3 redundant places. [2022-12-13 16:59:03,829 INFO L231 Difference]: Finished difference. Result has 477 places, 2048 transitions, 93677 flow [2022-12-13 16:59:03,830 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=85833, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1975, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=946, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=989, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=93677, PETRI_PLACES=477, PETRI_TRANSITIONS=2048} [2022-12-13 16:59:03,830 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 396 predicate places. [2022-12-13 16:59:03,830 INFO L495 AbstractCegarLoop]: Abstraction has has 477 places, 2048 transitions, 93677 flow [2022-12-13 16:59:03,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 184.8) internal successors, (1848), 10 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:59:03,831 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:59:03,831 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] [2022-12-13 16:59:03,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 16:59:03,831 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:59:03,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:59:03,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1144719666, now seen corresponding path program 1 times [2022-12-13 16:59:03,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:59:03,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935209925] [2022-12-13 16:59:03,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:59:03,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:59:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:59:04,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:59:04,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:59:04,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935209925] [2022-12-13 16:59:04,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935209925] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:59:04,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:59:04,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:59:04,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065005585] [2022-12-13 16:59:04,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:59:04,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:59:04,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:59:04,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:59:04,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:59:04,796 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 466 [2022-12-13 16:59:04,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 2048 transitions, 93677 flow. Second operand has 10 states, 10 states have (on average 188.1) internal successors, (1881), 10 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:59:04,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:59:04,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 466 [2022-12-13 16:59:04,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:59:25,162 INFO L130 PetriNetUnfolder]: 9273/20496 cut-off events. [2022-12-13 16:59:25,162 INFO L131 PetriNetUnfolder]: For 1247693/1247835 co-relation queries the response was YES. [2022-12-13 16:59:25,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206486 conditions, 20496 events. 9273/20496 cut-off events. For 1247693/1247835 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 191619 event pairs, 2602 based on Foata normal form. 8/20231 useless extension candidates. Maximal degree in co-relation 206303. Up to 15025 conditions per place. [2022-12-13 16:59:25,468 INFO L137 encePairwiseOnDemand]: 453/466 looper letters, 1568 selfloop transitions, 520 changer transitions 0/2410 dead transitions. [2022-12-13 16:59:25,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 2410 transitions, 115131 flow [2022-12-13 16:59:25,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:59:25,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 16:59:25,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1818 transitions. [2022-12-13 16:59:25,471 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4334763948497854 [2022-12-13 16:59:25,471 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1818 transitions. [2022-12-13 16:59:25,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1818 transitions. [2022-12-13 16:59:25,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:59:25,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1818 transitions. [2022-12-13 16:59:25,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 202.0) internal successors, (1818), 9 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:59:25,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 466.0) internal successors, (4660), 10 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:59:25,475 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 466.0) internal successors, (4660), 10 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:59:25,475 INFO L175 Difference]: Start difference. First operand has 477 places, 2048 transitions, 93677 flow. Second operand 9 states and 1818 transitions. [2022-12-13 16:59:25,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 2410 transitions, 115131 flow [2022-12-13 16:59:41,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 2410 transitions, 115034 flow, removed 45 selfloop flow, removed 1 redundant places. [2022-12-13 16:59:41,280 INFO L231 Difference]: Finished difference. Result has 488 places, 2209 transitions, 104788 flow [2022-12-13 16:59:41,281 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=93580, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2048, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=359, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=104788, PETRI_PLACES=488, PETRI_TRANSITIONS=2209} [2022-12-13 16:59:41,281 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 407 predicate places. [2022-12-13 16:59:41,282 INFO L495 AbstractCegarLoop]: Abstraction has has 488 places, 2209 transitions, 104788 flow [2022-12-13 16:59:41,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 188.1) internal successors, (1881), 10 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:59:41,282 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:59:41,282 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] [2022-12-13 16:59:41,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 16:59:41,282 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 16:59:41,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:59:41,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1075363392, now seen corresponding path program 2 times [2022-12-13 16:59:41,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:59:41,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374945322] [2022-12-13 16:59:41,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:59:41,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:59:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:59:41,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:59:41,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:59:41,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374945322] [2022-12-13 16:59:41,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374945322] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:59:41,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:59:41,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:59:41,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089529929] [2022-12-13 16:59:41,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:59:41,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 16:59:41,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:59:41,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 16:59:41,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:59:42,906 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 466 [2022-12-13 16:59:42,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 2209 transitions, 104788 flow. Second operand has 11 states, 11 states have (on average 184.9090909090909) internal successors, (2034), 11 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:59:42,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:59:42,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 466 [2022-12-13 16:59:42,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:00:05,034 INFO L130 PetriNetUnfolder]: 9093/20088 cut-off events. [2022-12-13 17:00:05,035 INFO L131 PetriNetUnfolder]: For 1276038/1276180 co-relation queries the response was YES. [2022-12-13 17:00:05,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209127 conditions, 20088 events. 9093/20088 cut-off events. For 1276038/1276180 co-relation queries the response was YES. Maximal size of possible extension queue 667. Compared 187147 event pairs, 2063 based on Foata normal form. 8/20033 useless extension candidates. Maximal degree in co-relation 208939. Up to 11457 conditions per place. [2022-12-13 17:00:05,386 INFO L137 encePairwiseOnDemand]: 456/466 looper letters, 1137 selfloop transitions, 1061 changer transitions 2/2522 dead transitions. [2022-12-13 17:00:05,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 2522 transitions, 119075 flow [2022-12-13 17:00:05,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 17:00:05,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 17:00:05,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2946 transitions. [2022-12-13 17:00:05,389 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42145922746781117 [2022-12-13 17:00:05,389 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2946 transitions. [2022-12-13 17:00:05,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2946 transitions. [2022-12-13 17:00:05,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:00:05,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2946 transitions. [2022-12-13 17:00:05,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 196.4) internal successors, (2946), 15 states have internal predecessors, (2946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:00:05,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 466.0) internal successors, (7456), 16 states have internal predecessors, (7456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:00:05,395 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 466.0) internal successors, (7456), 16 states have internal predecessors, (7456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:00:05,395 INFO L175 Difference]: Start difference. First operand has 488 places, 2209 transitions, 104788 flow. Second operand 15 states and 2946 transitions. [2022-12-13 17:00:05,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 501 places, 2522 transitions, 119075 flow [2022-12-13 17:00:21,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 2522 transitions, 118707 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 17:00:22,056 INFO L231 Difference]: Finished difference. Result has 496 places, 2319 transitions, 111653 flow [2022-12-13 17:00:22,057 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=104413, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=950, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=111653, PETRI_PLACES=496, PETRI_TRANSITIONS=2319} [2022-12-13 17:00:22,058 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 415 predicate places. [2022-12-13 17:00:22,058 INFO L495 AbstractCegarLoop]: Abstraction has has 496 places, 2319 transitions, 111653 flow [2022-12-13 17:00:22,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 184.9090909090909) internal successors, (2034), 11 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:00:22,058 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:00:22,058 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] [2022-12-13 17:00:22,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 17:00:22,058 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:00:22,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:00:22,058 INFO L85 PathProgramCache]: Analyzing trace with hash -393154178, now seen corresponding path program 1 times [2022-12-13 17:00:22,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:00:22,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800671525] [2022-12-13 17:00:22,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:00:22,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:00:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:00:22,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:00:22,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:00:22,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800671525] [2022-12-13 17:00:22,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800671525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:00:22,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:00:22,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:00:22,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171565796] [2022-12-13 17:00:22,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:00:22,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:00:22,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:00:22,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:00:22,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:00:22,480 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 466 [2022-12-13 17:00:22,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 2319 transitions, 111653 flow. Second operand has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:00:22,481 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:00:22,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 466 [2022-12-13 17:00:22,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:00:45,048 INFO L130 PetriNetUnfolder]: 9617/20880 cut-off events. [2022-12-13 17:00:45,048 INFO L131 PetriNetUnfolder]: For 1376958/1377022 co-relation queries the response was YES. [2022-12-13 17:00:45,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222692 conditions, 20880 events. 9617/20880 cut-off events. For 1376958/1377022 co-relation queries the response was YES. Maximal size of possible extension queue 658. Compared 191837 event pairs, 2975 based on Foata normal form. 29/20891 useless extension candidates. Maximal degree in co-relation 222504. Up to 20136 conditions per place. [2022-12-13 17:00:45,431 INFO L137 encePairwiseOnDemand]: 451/466 looper letters, 2203 selfloop transitions, 201 changer transitions 0/2411 dead transitions. [2022-12-13 17:00:45,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 2411 transitions, 118553 flow [2022-12-13 17:00:45,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:00:45,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:00:45,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1221 transitions. [2022-12-13 17:00:45,433 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4366952789699571 [2022-12-13 17:00:45,433 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1221 transitions. [2022-12-13 17:00:45,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1221 transitions. [2022-12-13 17:00:45,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:00:45,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1221 transitions. [2022-12-13 17:00:45,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.5) internal successors, (1221), 6 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:00:45,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:00:45,436 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:00:45,436 INFO L175 Difference]: Start difference. First operand has 496 places, 2319 transitions, 111653 flow. Second operand 6 states and 1221 transitions. [2022-12-13 17:00:45,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 501 places, 2411 transitions, 118553 flow [2022-12-13 17:01:02,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 492 places, 2411 transitions, 117030 flow, removed 6 selfloop flow, removed 9 redundant places. [2022-12-13 17:01:02,929 INFO L231 Difference]: Finished difference. Result has 496 places, 2367 transitions, 111998 flow [2022-12-13 17:01:02,930 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=110138, PETRI_DIFFERENCE_MINUEND_PLACES=487, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=163, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=111998, PETRI_PLACES=496, PETRI_TRANSITIONS=2367} [2022-12-13 17:01:02,931 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 415 predicate places. [2022-12-13 17:01:02,931 INFO L495 AbstractCegarLoop]: Abstraction has has 496 places, 2367 transitions, 111998 flow [2022-12-13 17:01:02,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:02,931 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:01:02,931 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] [2022-12-13 17:01:02,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 17:01:02,931 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:01:02,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:01:02,932 INFO L85 PathProgramCache]: Analyzing trace with hash -400021504, now seen corresponding path program 1 times [2022-12-13 17:01:02,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:01:02,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728861932] [2022-12-13 17:01:02,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:01:02,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:01:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:03,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:01:03,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:01:03,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728861932] [2022-12-13 17:01:03,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728861932] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:01:03,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:01:03,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:01:03,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986447470] [2022-12-13 17:01:03,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:01:03,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:01:03,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:01:03,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:01:03,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:01:03,042 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 466 [2022-12-13 17:01:03,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 2367 transitions, 111998 flow. Second operand has 3 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 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) [2022-12-13 17:01:03,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:01:03,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 466 [2022-12-13 17:01:03,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:01:12,883 INFO L130 PetriNetUnfolder]: 4888/12365 cut-off events. [2022-12-13 17:01:12,884 INFO L131 PetriNetUnfolder]: For 859714/859895 co-relation queries the response was YES. [2022-12-13 17:01:13,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135437 conditions, 12365 events. 4888/12365 cut-off events. For 859714/859895 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 122144 event pairs, 210 based on Foata normal form. 339/12648 useless extension candidates. Maximal degree in co-relation 135245. Up to 3334 conditions per place. [2022-12-13 17:01:13,087 INFO L137 encePairwiseOnDemand]: 462/466 looper letters, 753 selfloop transitions, 3 changer transitions 2/2055 dead transitions. [2022-12-13 17:01:13,087 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 492 places, 2055 transitions, 97327 flow [2022-12-13 17:01:13,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:01:13,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:01:13,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 759 transitions. [2022-12-13 17:01:13,088 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5429184549356223 [2022-12-13 17:01:13,088 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 759 transitions. [2022-12-13 17:01:13,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 759 transitions. [2022-12-13 17:01:13,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:01:13,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 759 transitions. [2022-12-13 17:01:13,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:13,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 466.0) internal successors, (1864), 4 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:13,090 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 466.0) internal successors, (1864), 4 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:13,090 INFO L175 Difference]: Start difference. First operand has 496 places, 2367 transitions, 111998 flow. Second operand 3 states and 759 transitions. [2022-12-13 17:01:13,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 492 places, 2055 transitions, 97327 flow [2022-12-13 17:01:21,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 2055 transitions, 92891 flow, removed 279 selfloop flow, removed 41 redundant places. [2022-12-13 17:01:21,903 INFO L231 Difference]: Finished difference. Result has 451 places, 1994 transitions, 88797 flow [2022-12-13 17:01:21,903 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=88793, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1995, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1992, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88797, PETRI_PLACES=451, PETRI_TRANSITIONS=1994} [2022-12-13 17:01:21,904 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 370 predicate places. [2022-12-13 17:01:21,904 INFO L495 AbstractCegarLoop]: Abstraction has has 451 places, 1994 transitions, 88797 flow [2022-12-13 17:01:21,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 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) [2022-12-13 17:01:21,904 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:01:21,904 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] [2022-12-13 17:01:21,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 17:01:21,904 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-12-13 17:01:21,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:01:21,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1215728762, now seen corresponding path program 1 times [2022-12-13 17:01:21,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:01:21,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172603645] [2022-12-13 17:01:21,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:01:21,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:01:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:22,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:01:22,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:01:22,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172603645] [2022-12-13 17:01:22,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172603645] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:01:22,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:01:22,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:01:22,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422113590] [2022-12-13 17:01:22,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:01:22,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:01:22,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:01:22,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:01:22,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:01:22,437 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 466 [2022-12-13 17:01:22,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 1994 transitions, 88797 flow. Second operand has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:22,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:01:22,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 466 [2022-12-13 17:01:22,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:01:35,929 INFO L130 PetriNetUnfolder]: 6155/13911 cut-off events. [2022-12-13 17:01:35,929 INFO L131 PetriNetUnfolder]: For 919360/919371 co-relation queries the response was YES. [2022-12-13 17:01:36,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146477 conditions, 13911 events. 6155/13911 cut-off events. For 919360/919371 co-relation queries the response was YES. Maximal size of possible extension queue 632. Compared 128047 event pairs, 1089 based on Foata normal form. 0/13911 useless extension candidates. Maximal degree in co-relation 146316. Up to 13835 conditions per place. [2022-12-13 17:01:36,067 INFO L137 encePairwiseOnDemand]: 461/466 looper letters, 0 selfloop transitions, 0 changer transitions 1997/1997 dead transitions. [2022-12-13 17:01:36,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 1997 transitions, 92999 flow [2022-12-13 17:01:36,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:01:36,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:01:36,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1166 transitions. [2022-12-13 17:01:36,069 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41702432045779686 [2022-12-13 17:01:36,070 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1166 transitions. [2022-12-13 17:01:36,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1166 transitions. [2022-12-13 17:01:36,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:01:36,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1166 transitions. [2022-12-13 17:01:36,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.33333333333334) internal successors, (1166), 6 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:36,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:36,072 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:36,072 INFO L175 Difference]: Start difference. First operand has 451 places, 1994 transitions, 88797 flow. Second operand 6 states and 1166 transitions. [2022-12-13 17:01:36,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 1997 transitions, 92999 flow [2022-12-13 17:01:45,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 1997 transitions, 92828 flow, removed 49 selfloop flow, removed 2 redundant places. [2022-12-13 17:01:45,398 INFO L231 Difference]: Finished difference. Result has 452 places, 0 transitions, 0 flow [2022-12-13 17:01:45,399 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=88628, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1993, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1993, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=452, PETRI_TRANSITIONS=0} [2022-12-13 17:01:45,399 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, 371 predicate places. [2022-12-13 17:01:45,399 INFO L495 AbstractCegarLoop]: Abstraction has has 452 places, 0 transitions, 0 flow [2022-12-13 17:01:45,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.0) internal successors, (1146), 6 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:01:45,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 30 remaining) [2022-12-13 17:01:45,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 30 remaining) [2022-12-13 17:01:45,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 30 remaining) [2022-12-13 17:01:45,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 30 remaining) [2022-12-13 17:01:45,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 30 remaining) [2022-12-13 17:01:45,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (24 of 30 remaining) [2022-12-13 17:01:45,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (23 of 30 remaining) [2022-12-13 17:01:45,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (22 of 30 remaining) [2022-12-13 17:01:45,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (21 of 30 remaining) [2022-12-13 17:01:45,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (20 of 30 remaining) [2022-12-13 17:01:45,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (19 of 30 remaining) [2022-12-13 17:01:45,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (18 of 30 remaining) [2022-12-13 17:01:45,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (17 of 30 remaining) [2022-12-13 17:01:45,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (16 of 30 remaining) [2022-12-13 17:01:45,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (15 of 30 remaining) [2022-12-13 17:01:45,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 30 remaining) [2022-12-13 17:01:45,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 30 remaining) [2022-12-13 17:01:45,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 30 remaining) [2022-12-13 17:01:45,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 30 remaining) [2022-12-13 17:01:45,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 30 remaining) [2022-12-13 17:01:45,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 30 remaining) [2022-12-13 17:01:45,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONDATA_RACE (8 of 30 remaining) [2022-12-13 17:01:45,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONDATA_RACE (7 of 30 remaining) [2022-12-13 17:01:45,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 30 remaining) [2022-12-13 17:01:45,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 30 remaining) [2022-12-13 17:01:45,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (4 of 30 remaining) [2022-12-13 17:01:45,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 30 remaining) [2022-12-13 17:01:45,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 30 remaining) [2022-12-13 17:01:45,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONDATA_RACE (1 of 30 remaining) [2022-12-13 17:01:45,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONDATA_RACE (0 of 30 remaining) [2022-12-13 17:01:45,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-13 17:01:45,405 INFO L445 BasicCegarLoop]: Path program histogram: [13, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:01:45,409 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 17:01:45,409 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:01:45,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:01:45 BasicIcfg [2022-12-13 17:01:45,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:01:45,412 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:01:45,412 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:01:45,412 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:01:45,412 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:48:36" (3/4) ... [2022-12-13 17:01:45,414 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 17:01:45,418 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 17:01:45,421 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-12-13 17:01:45,422 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-12-13 17:01:45,422 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 17:01:45,447 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852fec78-4529-4e32-866c-b3973c8114e6/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:01:45,447 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:01:45,447 INFO L158 Benchmark]: Toolchain (without parser) took 790086.88ms. Allocated memory was 142.6MB in the beginning and 3.8GB in the end (delta: 3.7GB). Free memory was 105.2MB in the beginning and 712.3MB in the end (delta: -607.1MB). Peak memory consumption was 3.1GB. Max. memory is 16.1GB. [2022-12-13 17:01:45,447 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 142.6MB. Free memory is still 113.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:01:45,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 549.76ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 66.2MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-12-13 17:01:45,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.15ms. Allocated memory is still 142.6MB. Free memory was 66.2MB in the beginning and 62.6MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:01:45,448 INFO L158 Benchmark]: Boogie Preprocessor took 37.52ms. Allocated memory is still 142.6MB. Free memory was 62.6MB in the beginning and 59.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:01:45,448 INFO L158 Benchmark]: RCFGBuilder took 576.46ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 59.6MB in the beginning and 119.6MB in the end (delta: -60.1MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2022-12-13 17:01:45,448 INFO L158 Benchmark]: TraceAbstraction took 788840.73ms. Allocated memory was 172.0MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 118.5MB in the beginning and 716.5MB in the end (delta: -598.0MB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. [2022-12-13 17:01:45,449 INFO L158 Benchmark]: Witness Printer took 35.05ms. Allocated memory is still 3.8GB. Free memory was 716.5MB in the beginning and 712.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:01:45,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 142.6MB. Free memory is still 113.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 549.76ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 66.2MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.15ms. Allocated memory is still 142.6MB. Free memory was 66.2MB in the beginning and 62.6MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.52ms. Allocated memory is still 142.6MB. Free memory was 62.6MB in the beginning and 59.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 576.46ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 59.6MB in the beginning and 119.6MB in the end (delta: -60.1MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * TraceAbstraction took 788840.73ms. Allocated memory was 172.0MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 118.5MB in the beginning and 716.5MB in the end (delta: -598.0MB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. * Witness Printer took 35.05ms. Allocated memory is still 3.8GB. Free memory was 716.5MB in the beginning and 712.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 396.5s, 251 PlacesBefore, 81 PlacesAfterwards, 247 TransitionsBefore, 77 TransitionsAfterwards, 4828 CoEnabledTransitionPairs, 9 FixpointIterations, 176 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 218 TotalNumberOfCompositions, 36302 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5785, independent: 4608, independent conditional: 0, independent unconditional: 4608, dependent: 1177, dependent conditional: 0, dependent unconditional: 1177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1961, independent: 1866, independent conditional: 0, independent unconditional: 1866, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5785, independent: 2742, independent conditional: 0, independent unconditional: 2742, dependent: 1082, dependent conditional: 0, dependent unconditional: 1082, unknown: 1961, unknown conditional: 0, unknown unconditional: 1961] , Statistics on independence cache: Total cache size (in pairs): 263, Positive cache size: 204, Positive conditional cache size: 0, Positive unconditional cache size: 204, Negative cache size: 59, Negative conditional cache size: 0, Negative unconditional cache size: 59, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1228]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1229]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1253]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1254]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1228]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1229]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1255]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1255]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1256]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1257]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1228]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1229]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1262]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1262]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1263]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1228]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1229]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1241]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1241]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1242]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1242]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1243]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 322 locations, 30 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: 788.7s, OverallIterations: 31, TraceHistogramMax: 1, PathProgramHistogramMax: 13, EmptinessCheckTime: 0.0s, AutomataDifference: 379.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 396.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16078 SdHoareTripleChecker+Valid, 62.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12816 mSDsluCounter, 6610 SdHoareTripleChecker+Invalid, 56.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6060 mSDsCounter, 3457 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46413 IncrementalHoareTripleChecker+Invalid, 49870 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3457 mSolverCounterUnsat, 550 mSDtfsCounter, 46413 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 420 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 391 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111998occurred in iteration=29, InterpolantAutomatonStates: 352, 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, 0.4s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 530 NumberOfCodeBlocks, 530 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 499 ConstructedInterpolants, 0 QuantifiedInterpolants, 6651 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 31 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 - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 17:01:45,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_852fec78-4529-4e32-866c-b3973c8114e6/bin/uautomizer-uyxdKDjOR8/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 Result: TRUE