./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_71773d20-e839-4748-a8c0-f83b0984fb61/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71773d20-e839-4748-a8c0-f83b0984fb61/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71773d20-e839-4748-a8c0-f83b0984fb61/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71773d20-e839-4748-a8c0-f83b0984fb61/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71773d20-e839-4748-a8c0-f83b0984fb61/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71773d20-e839-4748-a8c0-f83b0984fb61/bin/uautomizer-vX5HgA9Q3a --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 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a --- 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-b5237d8 [2022-11-21 13:57:27,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:57:27,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:57:27,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:57:27,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:57:27,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:57:27,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:57:27,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:57:27,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:57:27,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:57:27,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:57:27,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:57:27,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:57:27,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:57:27,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:57:27,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:57:27,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:57:27,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:57:27,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:57:27,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:57:27,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:57:27,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:57:27,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:57:27,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:57:27,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:57:27,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:57:27,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:57:27,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:57:27,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:57:27,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:57:27,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:57:27,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:57:27,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:57:27,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:57:27,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:57:27,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:57:27,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:57:27,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:57:27,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:57:27,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:57:27,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:57:27,215 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71773d20-e839-4748-a8c0-f83b0984fb61/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 13:57:27,257 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:57:27,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:57:27,258 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:57:27,259 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:57:27,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:57:27,260 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:57:27,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:57:27,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:57:27,261 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:57:27,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:57:27,262 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:57:27,262 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:57:27,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:57:27,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:57:27,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:57:27,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:57:27,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:57:27,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:57:27,263 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 13:57:27,263 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:57:27,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:57:27,264 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:57:27,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:57:27,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:57:27,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:57:27,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:57:27,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:57:27,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:57:27,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:57:27,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:57:27,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:57:27,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:57:27,266 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:57:27,267 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:57:27,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:57:27,267 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71773d20-e839-4748-a8c0-f83b0984fb61/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71773d20-e839-4748-a8c0-f83b0984fb61/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a [2022-11-21 13:57:27,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:57:27,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:57:27,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:57:27,626 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:57:27,627 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:57:27,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71773d20-e839-4748-a8c0-f83b0984fb61/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-11-21 13:57:30,758 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:57:31,198 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:57:31,200 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71773d20-e839-4748-a8c0-f83b0984fb61/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-11-21 13:57:31,222 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71773d20-e839-4748-a8c0-f83b0984fb61/bin/uautomizer-vX5HgA9Q3a/data/0db1969a9/290e354640a04308826e68b3f8a4e9c2/FLAGd67bbd90e [2022-11-21 13:57:31,245 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71773d20-e839-4748-a8c0-f83b0984fb61/bin/uautomizer-vX5HgA9Q3a/data/0db1969a9/290e354640a04308826e68b3f8a4e9c2 [2022-11-21 13:57:31,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:57:31,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:57:31,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:57:31,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:57:31,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:57:31,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:57:31" (1/1) ... [2022-11-21 13:57:31,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c149938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:57:31, skipping insertion in model container [2022-11-21 13:57:31,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:57:31" (1/1) ... [2022-11-21 13:57:31,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:57:31,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:57:31,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:57:31,995 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:57:32,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:57:32,160 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:57:32,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:57:32 WrapperNode [2022-11-21 13:57:32,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:57:32,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:57:32,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:57:32,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:57:32,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:57:32" (1/1) ... [2022-11-21 13:57:32,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:57:32" (1/1) ... [2022-11-21 13:57:32,212 INFO L138 Inliner]: procedures = 365, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 93 [2022-11-21 13:57:32,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:57:32,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:57:32,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:57:32,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:57:32,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:57:32" (1/1) ... [2022-11-21 13:57:32,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:57:32" (1/1) ... [2022-11-21 13:57:32,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:57:32" (1/1) ... [2022-11-21 13:57:32,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:57:32" (1/1) ... [2022-11-21 13:57:32,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:57:32" (1/1) ... [2022-11-21 13:57:32,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:57:32" (1/1) ... [2022-11-21 13:57:32,265 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:57:32" (1/1) ... [2022-11-21 13:57:32,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:57:32" (1/1) ... [2022-11-21 13:57:32,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:57:32,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:57:32,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:57:32,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:57:32,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:57:32" (1/1) ... [2022-11-21 13:57:32,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:57:32,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71773d20-e839-4748-a8c0-f83b0984fb61/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:57:32,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71773d20-e839-4748-a8c0-f83b0984fb61/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:57:32,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71773d20-e839-4748-a8c0-f83b0984fb61/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:57:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 13:57:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 13:57:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 13:57:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 13:57:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 13:57:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 13:57:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 13:57:32,344 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 13:57:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:57:32,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:57:32,346 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 13:57:32,484 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:57:32,487 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:57:32,907 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:57:32,915 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:57:32,919 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 13:57:32,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:57:32 BoogieIcfgContainer [2022-11-21 13:57:32,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:57:32,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:57:32,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:57:32,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:57:32,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:57:31" (1/3) ... [2022-11-21 13:57:32,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ee0f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:57:32, skipping insertion in model container [2022-11-21 13:57:32,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:57:32" (2/3) ... [2022-11-21 13:57:32,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ee0f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:57:32, skipping insertion in model container [2022-11-21 13:57:32,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:57:32" (3/3) ... [2022-11-21 13:57:32,935 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2022-11-21 13:57:32,944 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 13:57:32,955 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:57:32,955 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-21 13:57:32,956 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 13:57:33,076 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 13:57:33,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 115 transitions, 235 flow [2022-11-21 13:57:33,228 INFO L130 PetriNetUnfolder]: 0/114 cut-off events. [2022-11-21 13:57:33,228 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:57:33,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 114 events. 0/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 82 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-21 13:57:33,234 INFO L82 GeneralOperation]: Start removeDead. Operand has 119 places, 115 transitions, 235 flow [2022-11-21 13:57:33,238 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 114 transitions, 231 flow [2022-11-21 13:57:33,256 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:57:33,264 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;@5a6e0a14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:57:33,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-21 13:57:33,274 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2022-11-21 13:57:33,274 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:57:33,274 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:57:33,275 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:33,276 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:57:33,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:33,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1485637970, now seen corresponding path program 1 times [2022-11-21 13:57:33,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:33,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375517521] [2022-11-21 13:57:33,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:33,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:33,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:57:33,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:33,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375517521] [2022-11-21 13:57:33,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375517521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:57:33,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:57:33,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:57:33,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290022714] [2022-11-21 13:57:33,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:57:33,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:57:33,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:57:33,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:57:33,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:57:33,693 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 115 [2022-11-21 13:57:33,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 114 transitions, 231 flow. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:33,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:57:33,698 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 115 [2022-11-21 13:57:33,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:57:33,798 INFO L130 PetriNetUnfolder]: 9/263 cut-off events. [2022-11-21 13:57:33,798 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 13:57:33,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 263 events. 9/263 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 935 event pairs, 9 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 247. Up to 32 conditions per place. [2022-11-21 13:57:33,803 INFO L137 encePairwiseOnDemand]: 112/115 looper letters, 13 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2022-11-21 13:57:33,803 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 113 transitions, 259 flow [2022-11-21 13:57:33,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:57:33,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:57:33,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2022-11-21 13:57:33,818 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9072463768115943 [2022-11-21 13:57:33,819 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2022-11-21 13:57:33,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2022-11-21 13:57:33,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:57:33,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2022-11-21 13:57:33,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:33,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:33,834 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:33,836 INFO L175 Difference]: Start difference. First operand has 118 places, 114 transitions, 231 flow. Second operand 3 states and 313 transitions. [2022-11-21 13:57:33,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 113 transitions, 259 flow [2022-11-21 13:57:33,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 113 transitions, 258 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 13:57:33,845 INFO L231 Difference]: Finished difference. Result has 118 places, 113 transitions, 232 flow [2022-11-21 13:57:33,847 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=118, PETRI_TRANSITIONS=113} [2022-11-21 13:57:33,851 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 0 predicate places. [2022-11-21 13:57:33,852 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 113 transitions, 232 flow [2022-11-21 13:57:33,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:33,853 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:57:33,853 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:33,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:57:33,854 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:57:33,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:33,854 INFO L85 PathProgramCache]: Analyzing trace with hash -842156130, now seen corresponding path program 1 times [2022-11-21 13:57:33,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:33,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416731408] [2022-11-21 13:57:33,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:33,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:33,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:57:33,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:33,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416731408] [2022-11-21 13:57:33,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416731408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:57:33,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:57:33,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:57:33,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309653162] [2022-11-21 13:57:33,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:57:33,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:57:33,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:57:33,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:57:33,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:57:33,929 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 115 [2022-11-21 13:57:33,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 113 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:33,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:57:33,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 115 [2022-11-21 13:57:33,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:57:34,007 INFO L130 PetriNetUnfolder]: 4/216 cut-off events. [2022-11-21 13:57:34,007 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 13:57:34,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 216 events. 4/216 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 632 event pairs, 4 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 216. Up to 15 conditions per place. [2022-11-21 13:57:34,010 INFO L137 encePairwiseOnDemand]: 111/115 looper letters, 8 selfloop transitions, 1 changer transitions 0/110 dead transitions. [2022-11-21 13:57:34,010 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 110 transitions, 244 flow [2022-11-21 13:57:34,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:57:34,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:57:34,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 318 transitions. [2022-11-21 13:57:34,013 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9217391304347826 [2022-11-21 13:57:34,014 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 318 transitions. [2022-11-21 13:57:34,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 318 transitions. [2022-11-21 13:57:34,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:57:34,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 318 transitions. [2022-11-21 13:57:34,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:34,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:34,020 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:34,020 INFO L175 Difference]: Start difference. First operand has 118 places, 113 transitions, 232 flow. Second operand 3 states and 318 transitions. [2022-11-21 13:57:34,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 110 transitions, 244 flow [2022-11-21 13:57:34,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 110 transitions, 240 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:57:34,024 INFO L231 Difference]: Finished difference. Result has 115 places, 110 transitions, 224 flow [2022-11-21 13:57:34,025 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=115, PETRI_TRANSITIONS=110} [2022-11-21 13:57:34,026 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, -3 predicate places. [2022-11-21 13:57:34,026 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 110 transitions, 224 flow [2022-11-21 13:57:34,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:34,027 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:57:34,028 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:34,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:57:34,028 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:57:34,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:34,029 INFO L85 PathProgramCache]: Analyzing trace with hash 838099336, now seen corresponding path program 1 times [2022-11-21 13:57:34,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:34,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672737503] [2022-11-21 13:57:34,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:34,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:34,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:57:34,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:34,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672737503] [2022-11-21 13:57:34,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672737503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:57:34,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:57:34,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:57:34,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700096286] [2022-11-21 13:57:34,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:57:34,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:57:34,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:57:34,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:57:34,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:57:34,607 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 115 [2022-11-21 13:57:34,608 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 110 transitions, 224 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:34,608 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:57:34,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 115 [2022-11-21 13:57:34,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:57:34,832 INFO L130 PetriNetUnfolder]: 144/622 cut-off events. [2022-11-21 13:57:34,833 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:57:34,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 952 conditions, 622 events. 144/622 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3251 event pairs, 144 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 930. Up to 320 conditions per place. [2022-11-21 13:57:34,838 INFO L137 encePairwiseOnDemand]: 109/115 looper letters, 31 selfloop transitions, 5 changer transitions 0/109 dead transitions. [2022-11-21 13:57:34,838 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 109 transitions, 294 flow [2022-11-21 13:57:34,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:57:34,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:57:34,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 505 transitions. [2022-11-21 13:57:34,841 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7318840579710145 [2022-11-21 13:57:34,841 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 505 transitions. [2022-11-21 13:57:34,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 505 transitions. [2022-11-21 13:57:34,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:57:34,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 505 transitions. [2022-11-21 13:57:34,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:34,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:34,847 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:34,847 INFO L175 Difference]: Start difference. First operand has 115 places, 110 transitions, 224 flow. Second operand 6 states and 505 transitions. [2022-11-21 13:57:34,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 109 transitions, 294 flow [2022-11-21 13:57:34,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 109 transitions, 293 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 13:57:34,850 INFO L231 Difference]: Finished difference. Result has 118 places, 109 transitions, 231 flow [2022-11-21 13:57:34,851 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=231, PETRI_PLACES=118, PETRI_TRANSITIONS=109} [2022-11-21 13:57:34,851 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 0 predicate places. [2022-11-21 13:57:34,852 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 109 transitions, 231 flow [2022-11-21 13:57:34,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:34,852 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:57:34,853 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:34,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:57:34,853 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:57:34,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:34,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1006176948, now seen corresponding path program 1 times [2022-11-21 13:57:34,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:34,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048745614] [2022-11-21 13:57:34,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:34,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:35,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:57:35,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:35,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048745614] [2022-11-21 13:57:35,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048745614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:57:35,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:57:35,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:57:35,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721600257] [2022-11-21 13:57:35,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:57:35,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:57:35,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:57:35,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:57:35,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:57:35,341 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 115 [2022-11-21 13:57:35,343 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 109 transitions, 231 flow. Second operand has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:35,343 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:57:35,343 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 115 [2022-11-21 13:57:35,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:57:35,705 INFO L130 PetriNetUnfolder]: 239/878 cut-off events. [2022-11-21 13:57:35,705 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 13:57:35,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1409 conditions, 878 events. 239/878 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5033 event pairs, 119 based on Foata normal form. 0/807 useless extension candidates. Maximal degree in co-relation 1387. Up to 389 conditions per place. [2022-11-21 13:57:35,711 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 68 selfloop transitions, 22 changer transitions 0/163 dead transitions. [2022-11-21 13:57:35,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 163 transitions, 519 flow [2022-11-21 13:57:35,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:57:35,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:57:35,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 559 transitions. [2022-11-21 13:57:35,715 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8101449275362319 [2022-11-21 13:57:35,715 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 559 transitions. [2022-11-21 13:57:35,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 559 transitions. [2022-11-21 13:57:35,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:57:35,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 559 transitions. [2022-11-21 13:57:35,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.16666666666667) internal successors, (559), 6 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:35,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:35,720 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:35,721 INFO L175 Difference]: Start difference. First operand has 118 places, 109 transitions, 231 flow. Second operand 6 states and 559 transitions. [2022-11-21 13:57:35,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 163 transitions, 519 flow [2022-11-21 13:57:35,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 163 transitions, 509 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 13:57:35,731 INFO L231 Difference]: Finished difference. Result has 123 places, 130 transitions, 371 flow [2022-11-21 13:57:35,732 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=371, PETRI_PLACES=123, PETRI_TRANSITIONS=130} [2022-11-21 13:57:35,733 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 5 predicate places. [2022-11-21 13:57:35,734 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 130 transitions, 371 flow [2022-11-21 13:57:35,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:35,735 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:57:35,735 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:35,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 13:57:35,741 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:57:35,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:35,742 INFO L85 PathProgramCache]: Analyzing trace with hash 72490025, now seen corresponding path program 1 times [2022-11-21 13:57:35,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:35,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315470295] [2022-11-21 13:57:35,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:35,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:36,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:57:36,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:36,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315470295] [2022-11-21 13:57:36,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315470295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:57:36,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:57:36,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:57:36,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472191668] [2022-11-21 13:57:36,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:57:36,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:57:36,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:57:36,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:57:36,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:57:36,129 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 115 [2022-11-21 13:57:36,130 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 130 transitions, 371 flow. Second operand has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:36,130 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:57:36,130 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 115 [2022-11-21 13:57:36,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:57:36,517 INFO L130 PetriNetUnfolder]: 258/935 cut-off events. [2022-11-21 13:57:36,517 INFO L131 PetriNetUnfolder]: For 281/289 co-relation queries the response was YES. [2022-11-21 13:57:36,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1847 conditions, 935 events. 258/935 cut-off events. For 281/289 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 5547 event pairs, 106 based on Foata normal form. 0/878 useless extension candidates. Maximal degree in co-relation 1821. Up to 444 conditions per place. [2022-11-21 13:57:36,523 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 81 selfloop transitions, 26 changer transitions 0/180 dead transitions. [2022-11-21 13:57:36,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 180 transitions, 775 flow [2022-11-21 13:57:36,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:57:36,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:57:36,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2022-11-21 13:57:36,526 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8043478260869565 [2022-11-21 13:57:36,526 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 555 transitions. [2022-11-21 13:57:36,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 555 transitions. [2022-11-21 13:57:36,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:57:36,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 555 transitions. [2022-11-21 13:57:36,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.5) internal successors, (555), 6 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:36,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:36,531 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:36,532 INFO L175 Difference]: Start difference. First operand has 123 places, 130 transitions, 371 flow. Second operand 6 states and 555 transitions. [2022-11-21 13:57:36,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 180 transitions, 775 flow [2022-11-21 13:57:36,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 180 transitions, 775 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 13:57:36,539 INFO L231 Difference]: Finished difference. Result has 133 places, 151 transitions, 555 flow [2022-11-21 13:57:36,539 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=555, PETRI_PLACES=133, PETRI_TRANSITIONS=151} [2022-11-21 13:57:36,540 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 15 predicate places. [2022-11-21 13:57:36,540 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 151 transitions, 555 flow [2022-11-21 13:57:36,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:36,541 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:57:36,541 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:36,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 13:57:36,542 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:57:36,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:36,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1581779769, now seen corresponding path program 1 times [2022-11-21 13:57:36,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:36,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340911273] [2022-11-21 13:57:36,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:36,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:36,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:57:36,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:36,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340911273] [2022-11-21 13:57:36,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340911273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:57:36,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:57:36,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:57:36,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339726640] [2022-11-21 13:57:36,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:57:36,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:57:36,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:57:36,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:57:36,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:57:36,918 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2022-11-21 13:57:36,919 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 151 transitions, 555 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:36,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:57:36,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2022-11-21 13:57:36,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:57:37,423 INFO L130 PetriNetUnfolder]: 350/1245 cut-off events. [2022-11-21 13:57:37,423 INFO L131 PetriNetUnfolder]: For 646/659 co-relation queries the response was YES. [2022-11-21 13:57:37,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2800 conditions, 1245 events. 350/1245 cut-off events. For 646/659 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 8209 event pairs, 132 based on Foata normal form. 4/1188 useless extension candidates. Maximal degree in co-relation 2769. Up to 644 conditions per place. [2022-11-21 13:57:37,433 INFO L137 encePairwiseOnDemand]: 100/115 looper letters, 87 selfloop transitions, 53 changer transitions 4/215 dead transitions. [2022-11-21 13:57:37,433 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 215 transitions, 1131 flow [2022-11-21 13:57:37,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:57:37,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:57:37,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 548 transitions. [2022-11-21 13:57:37,435 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7942028985507247 [2022-11-21 13:57:37,436 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 548 transitions. [2022-11-21 13:57:37,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 548 transitions. [2022-11-21 13:57:37,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:57:37,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 548 transitions. [2022-11-21 13:57:37,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:37,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:37,440 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:37,440 INFO L175 Difference]: Start difference. First operand has 133 places, 151 transitions, 555 flow. Second operand 6 states and 548 transitions. [2022-11-21 13:57:37,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 215 transitions, 1131 flow [2022-11-21 13:57:37,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 215 transitions, 1131 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 13:57:37,453 INFO L231 Difference]: Finished difference. Result has 143 places, 198 transitions, 1037 flow [2022-11-21 13:57:37,454 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1037, PETRI_PLACES=143, PETRI_TRANSITIONS=198} [2022-11-21 13:57:37,457 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 25 predicate places. [2022-11-21 13:57:37,457 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 198 transitions, 1037 flow [2022-11-21 13:57:37,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:37,458 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:57:37,458 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:37,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 13:57:37,459 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:57:37,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:37,459 INFO L85 PathProgramCache]: Analyzing trace with hash 138758537, now seen corresponding path program 1 times [2022-11-21 13:57:37,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:37,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363204599] [2022-11-21 13:57:37,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:37,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:37,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:57:37,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:37,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363204599] [2022-11-21 13:57:37,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363204599] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:57:37,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:57:37,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:57:37,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176646614] [2022-11-21 13:57:37,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:57:37,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:57:37,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:57:37,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:57:37,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:57:37,852 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 115 [2022-11-21 13:57:37,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 198 transitions, 1037 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:37,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:57:37,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 115 [2022-11-21 13:57:37,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:57:38,413 INFO L130 PetriNetUnfolder]: 442/1423 cut-off events. [2022-11-21 13:57:38,414 INFO L131 PetriNetUnfolder]: For 1570/1586 co-relation queries the response was YES. [2022-11-21 13:57:38,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4035 conditions, 1423 events. 442/1423 cut-off events. For 1570/1586 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 9323 event pairs, 130 based on Foata normal form. 0/1392 useless extension candidates. Maximal degree in co-relation 3999. Up to 796 conditions per place. [2022-11-21 13:57:38,426 INFO L137 encePairwiseOnDemand]: 100/115 looper letters, 124 selfloop transitions, 58 changer transitions 15/269 dead transitions. [2022-11-21 13:57:38,426 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 269 transitions, 1849 flow [2022-11-21 13:57:38,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:57:38,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:57:38,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 548 transitions. [2022-11-21 13:57:38,428 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7942028985507247 [2022-11-21 13:57:38,429 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 548 transitions. [2022-11-21 13:57:38,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 548 transitions. [2022-11-21 13:57:38,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:57:38,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 548 transitions. [2022-11-21 13:57:38,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:38,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:38,433 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:38,433 INFO L175 Difference]: Start difference. First operand has 143 places, 198 transitions, 1037 flow. Second operand 6 states and 548 transitions. [2022-11-21 13:57:38,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 269 transitions, 1849 flow [2022-11-21 13:57:38,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 269 transitions, 1785 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-11-21 13:57:38,453 INFO L231 Difference]: Finished difference. Result has 153 places, 242 transitions, 1529 flow [2022-11-21 13:57:38,454 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=979, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1529, PETRI_PLACES=153, PETRI_TRANSITIONS=242} [2022-11-21 13:57:38,454 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 35 predicate places. [2022-11-21 13:57:38,455 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 242 transitions, 1529 flow [2022-11-21 13:57:38,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:38,455 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:57:38,455 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:38,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 13:57:38,456 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:57:38,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:38,456 INFO L85 PathProgramCache]: Analyzing trace with hash 22527780, now seen corresponding path program 1 times [2022-11-21 13:57:38,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:38,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280771964] [2022-11-21 13:57:38,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:38,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:57:39,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:39,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280771964] [2022-11-21 13:57:39,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280771964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:57:39,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:57:39,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:57:39,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538834354] [2022-11-21 13:57:39,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:57:39,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:57:39,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:57:39,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:57:39,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:57:39,445 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:57:39,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 242 transitions, 1529 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:39,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:57:39,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:57:39,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:57:40,750 INFO L130 PetriNetUnfolder]: 637/1932 cut-off events. [2022-11-21 13:57:40,750 INFO L131 PetriNetUnfolder]: For 3220/3220 co-relation queries the response was YES. [2022-11-21 13:57:40,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6021 conditions, 1932 events. 637/1932 cut-off events. For 3220/3220 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 13003 event pairs, 65 based on Foata normal form. 13/1935 useless extension candidates. Maximal degree in co-relation 5975. Up to 936 conditions per place. [2022-11-21 13:57:40,768 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 253 selfloop transitions, 9 changer transitions 66/391 dead transitions. [2022-11-21 13:57:40,768 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 391 transitions, 3097 flow [2022-11-21 13:57:40,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:57:40,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:57:40,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 917 transitions. [2022-11-21 13:57:40,771 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.724901185770751 [2022-11-21 13:57:40,771 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 917 transitions. [2022-11-21 13:57:40,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 917 transitions. [2022-11-21 13:57:40,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:57:40,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 917 transitions. [2022-11-21 13:57:40,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.36363636363636) internal successors, (917), 11 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:40,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:40,778 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:40,778 INFO L175 Difference]: Start difference. First operand has 153 places, 242 transitions, 1529 flow. Second operand 11 states and 917 transitions. [2022-11-21 13:57:40,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 391 transitions, 3097 flow [2022-11-21 13:57:40,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 391 transitions, 3029 flow, removed 34 selfloop flow, removed 0 redundant places. [2022-11-21 13:57:40,822 INFO L231 Difference]: Finished difference. Result has 167 places, 242 transitions, 1490 flow [2022-11-21 13:57:40,823 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1461, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1490, PETRI_PLACES=167, PETRI_TRANSITIONS=242} [2022-11-21 13:57:40,826 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 49 predicate places. [2022-11-21 13:57:40,826 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 242 transitions, 1490 flow [2022-11-21 13:57:40,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:40,827 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:57:40,828 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:40,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 13:57:40,828 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:57:40,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:40,829 INFO L85 PathProgramCache]: Analyzing trace with hash 908891550, now seen corresponding path program 2 times [2022-11-21 13:57:40,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:40,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044929488] [2022-11-21 13:57:40,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:40,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:42,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:57:42,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:42,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044929488] [2022-11-21 13:57:42,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044929488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:57:42,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:57:42,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:57:42,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949403565] [2022-11-21 13:57:42,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:57:42,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:57:42,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:57:42,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:57:42,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:57:42,299 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:57:42,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 242 transitions, 1490 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:42,302 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:57:42,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:57:42,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:57:43,891 INFO L130 PetriNetUnfolder]: 1146/3413 cut-off events. [2022-11-21 13:57:43,892 INFO L131 PetriNetUnfolder]: For 6117/6119 co-relation queries the response was YES. [2022-11-21 13:57:43,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11429 conditions, 3413 events. 1146/3413 cut-off events. For 6117/6119 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 26643 event pairs, 136 based on Foata normal form. 14/3407 useless extension candidates. Maximal degree in co-relation 11375. Up to 1174 conditions per place. [2022-11-21 13:57:43,929 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 417 selfloop transitions, 10 changer transitions 48/538 dead transitions. [2022-11-21 13:57:43,929 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 538 transitions, 4603 flow [2022-11-21 13:57:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:57:43,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:57:43,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 933 transitions. [2022-11-21 13:57:43,933 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7375494071146245 [2022-11-21 13:57:43,933 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 933 transitions. [2022-11-21 13:57:43,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 933 transitions. [2022-11-21 13:57:43,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:57:43,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 933 transitions. [2022-11-21 13:57:43,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.81818181818181) internal successors, (933), 11 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:43,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:43,940 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:43,941 INFO L175 Difference]: Start difference. First operand has 167 places, 242 transitions, 1490 flow. Second operand 11 states and 933 transitions. [2022-11-21 13:57:43,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 538 transitions, 4603 flow [2022-11-21 13:57:44,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 538 transitions, 4543 flow, removed 9 selfloop flow, removed 9 redundant places. [2022-11-21 13:57:44,019 INFO L231 Difference]: Finished difference. Result has 172 places, 248 transitions, 1538 flow [2022-11-21 13:57:44,019 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1469, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1538, PETRI_PLACES=172, PETRI_TRANSITIONS=248} [2022-11-21 13:57:44,021 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 54 predicate places. [2022-11-21 13:57:44,021 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 248 transitions, 1538 flow [2022-11-21 13:57:44,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:44,022 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:57:44,022 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:44,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 13:57:44,023 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:57:44,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:44,023 INFO L85 PathProgramCache]: Analyzing trace with hash 419805406, now seen corresponding path program 3 times [2022-11-21 13:57:44,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:44,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098833653] [2022-11-21 13:57:44,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:44,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:44,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:57:44,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:44,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098833653] [2022-11-21 13:57:44,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098833653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:57:44,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:57:44,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:57:44,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989064025] [2022-11-21 13:57:44,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:57:44,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:57:44,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:57:44,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:57:44,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:57:44,798 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:57:44,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 248 transitions, 1538 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:44,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:57:44,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:57:44,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:57:46,379 INFO L130 PetriNetUnfolder]: 1156/3455 cut-off events. [2022-11-21 13:57:46,380 INFO L131 PetriNetUnfolder]: For 6751/6766 co-relation queries the response was YES. [2022-11-21 13:57:46,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11784 conditions, 3455 events. 1156/3455 cut-off events. For 6751/6766 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 26977 event pairs, 125 based on Foata normal form. 21/3456 useless extension candidates. Maximal degree in co-relation 11726. Up to 1846 conditions per place. [2022-11-21 13:57:46,410 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 240 selfloop transitions, 15 changer transitions 75/393 dead transitions. [2022-11-21 13:57:46,410 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 393 transitions, 3166 flow [2022-11-21 13:57:46,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:57:46,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:57:46,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 913 transitions. [2022-11-21 13:57:46,413 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7217391304347827 [2022-11-21 13:57:46,413 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 913 transitions. [2022-11-21 13:57:46,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 913 transitions. [2022-11-21 13:57:46,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:57:46,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 913 transitions. [2022-11-21 13:57:46,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 83.0) internal successors, (913), 11 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:46,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:46,420 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:46,421 INFO L175 Difference]: Start difference. First operand has 172 places, 248 transitions, 1538 flow. Second operand 11 states and 913 transitions. [2022-11-21 13:57:46,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 393 transitions, 3166 flow [2022-11-21 13:57:46,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 393 transitions, 3133 flow, removed 11 selfloop flow, removed 5 redundant places. [2022-11-21 13:57:46,493 INFO L231 Difference]: Finished difference. Result has 179 places, 248 transitions, 1571 flow [2022-11-21 13:57:46,495 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1527, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1571, PETRI_PLACES=179, PETRI_TRANSITIONS=248} [2022-11-21 13:57:46,495 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 61 predicate places. [2022-11-21 13:57:46,496 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 248 transitions, 1571 flow [2022-11-21 13:57:46,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:46,496 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:57:46,496 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:46,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 13:57:46,497 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:57:46,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:46,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1219974222, now seen corresponding path program 4 times [2022-11-21 13:57:46,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:46,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618117204] [2022-11-21 13:57:46,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:46,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:47,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:57:47,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:47,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618117204] [2022-11-21 13:57:47,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618117204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:57:47,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:57:47,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:57:47,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144791392] [2022-11-21 13:57:47,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:57:47,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:57:47,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:57:47,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:57:47,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:57:47,552 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:57:47,553 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 248 transitions, 1571 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:47,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:57:47,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:57:47,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:57:49,318 INFO L130 PetriNetUnfolder]: 1617/4905 cut-off events. [2022-11-21 13:57:49,319 INFO L131 PetriNetUnfolder]: For 10790/10806 co-relation queries the response was YES. [2022-11-21 13:57:49,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17191 conditions, 4905 events. 1617/4905 cut-off events. For 10790/10806 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 42149 event pairs, 245 based on Foata normal form. 22/4896 useless extension candidates. Maximal degree in co-relation 17131. Up to 2112 conditions per place. [2022-11-21 13:57:49,387 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 413 selfloop transitions, 10 changer transitions 59/545 dead transitions. [2022-11-21 13:57:49,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 545 transitions, 4800 flow [2022-11-21 13:57:49,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:57:49,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:57:49,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 929 transitions. [2022-11-21 13:57:49,391 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7343873517786561 [2022-11-21 13:57:49,391 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 929 transitions. [2022-11-21 13:57:49,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 929 transitions. [2022-11-21 13:57:49,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:57:49,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 929 transitions. [2022-11-21 13:57:49,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.45454545454545) internal successors, (929), 11 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:49,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:49,398 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:49,398 INFO L175 Difference]: Start difference. First operand has 179 places, 248 transitions, 1571 flow. Second operand 11 states and 929 transitions. [2022-11-21 13:57:49,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 545 transitions, 4800 flow [2022-11-21 13:57:49,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 545 transitions, 4725 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-11-21 13:57:49,474 INFO L231 Difference]: Finished difference. Result has 182 places, 252 transitions, 1616 flow [2022-11-21 13:57:49,475 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1541, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1616, PETRI_PLACES=182, PETRI_TRANSITIONS=252} [2022-11-21 13:57:49,475 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 64 predicate places. [2022-11-21 13:57:49,475 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 252 transitions, 1616 flow [2022-11-21 13:57:49,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:49,476 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:57:49,476 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:49,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 13:57:49,477 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:57:49,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:49,477 INFO L85 PathProgramCache]: Analyzing trace with hash -991942528, now seen corresponding path program 5 times [2022-11-21 13:57:49,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:49,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990524182] [2022-11-21 13:57:49,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:49,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:50,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:57:50,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:50,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990524182] [2022-11-21 13:57:50,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990524182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:57:50,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:57:50,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:57:50,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724561984] [2022-11-21 13:57:50,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:57:50,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:57:50,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:57:50,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:57:50,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:57:50,260 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:57:50,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 252 transitions, 1616 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:50,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:57:50,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:57:50,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:57:52,331 INFO L130 PetriNetUnfolder]: 2109/6283 cut-off events. [2022-11-21 13:57:52,331 INFO L131 PetriNetUnfolder]: For 14614/14647 co-relation queries the response was YES. [2022-11-21 13:57:52,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22181 conditions, 6283 events. 2109/6283 cut-off events. For 14614/14647 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 56997 event pairs, 334 based on Foata normal form. 27/6269 useless extension candidates. Maximal degree in co-relation 22119. Up to 3064 conditions per place. [2022-11-21 13:57:52,420 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 410 selfloop transitions, 14 changer transitions 59/546 dead transitions. [2022-11-21 13:57:52,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 546 transitions, 4786 flow [2022-11-21 13:57:52,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:57:52,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:57:52,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 929 transitions. [2022-11-21 13:57:52,424 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7343873517786561 [2022-11-21 13:57:52,424 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 929 transitions. [2022-11-21 13:57:52,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 929 transitions. [2022-11-21 13:57:52,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:57:52,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 929 transitions. [2022-11-21 13:57:52,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.45454545454545) internal successors, (929), 11 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:52,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:52,431 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:52,431 INFO L175 Difference]: Start difference. First operand has 182 places, 252 transitions, 1616 flow. Second operand 11 states and 929 transitions. [2022-11-21 13:57:52,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 546 transitions, 4786 flow [2022-11-21 13:57:52,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 546 transitions, 4749 flow, removed 2 selfloop flow, removed 7 redundant places. [2022-11-21 13:57:52,779 INFO L231 Difference]: Finished difference. Result has 188 places, 256 transitions, 1681 flow [2022-11-21 13:57:52,779 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1601, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1681, PETRI_PLACES=188, PETRI_TRANSITIONS=256} [2022-11-21 13:57:52,780 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 70 predicate places. [2022-11-21 13:57:52,780 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 256 transitions, 1681 flow [2022-11-21 13:57:52,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:52,781 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:57:52,781 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:52,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 13:57:52,782 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:57:52,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:52,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1443695394, now seen corresponding path program 6 times [2022-11-21 13:57:52,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:52,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610746407] [2022-11-21 13:57:52,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:52,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:53,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:57:53,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:53,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610746407] [2022-11-21 13:57:53,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610746407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:57:53,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:57:53,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:57:53,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641734133] [2022-11-21 13:57:53,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:57:53,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:57:53,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:57:53,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:57:53,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:57:53,552 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:57:53,553 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 256 transitions, 1681 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:53,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:57:53,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:57:53,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:57:56,628 INFO L130 PetriNetUnfolder]: 2614/8015 cut-off events. [2022-11-21 13:57:56,628 INFO L131 PetriNetUnfolder]: For 19878/19911 co-relation queries the response was YES. [2022-11-21 13:57:56,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28251 conditions, 8015 events. 2614/8015 cut-off events. For 19878/19911 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 77041 event pairs, 719 based on Foata normal form. 25/7983 useless extension candidates. Maximal degree in co-relation 28186. Up to 3145 conditions per place. [2022-11-21 13:57:56,732 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 563 selfloop transitions, 12 changer transitions 60/698 dead transitions. [2022-11-21 13:57:56,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 698 transitions, 6414 flow [2022-11-21 13:57:56,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:57:56,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:57:56,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 948 transitions. [2022-11-21 13:57:56,736 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7494071146245059 [2022-11-21 13:57:56,736 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 948 transitions. [2022-11-21 13:57:56,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 948 transitions. [2022-11-21 13:57:56,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:57:56,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 948 transitions. [2022-11-21 13:57:56,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.18181818181819) internal successors, (948), 11 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:56,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:56,745 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:56,745 INFO L175 Difference]: Start difference. First operand has 188 places, 256 transitions, 1681 flow. Second operand 11 states and 948 transitions. [2022-11-21 13:57:56,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 698 transitions, 6414 flow [2022-11-21 13:57:56,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 698 transitions, 6359 flow, removed 8 selfloop flow, removed 7 redundant places. [2022-11-21 13:57:56,881 INFO L231 Difference]: Finished difference. Result has 195 places, 261 transitions, 1750 flow [2022-11-21 13:57:56,881 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1653, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1750, PETRI_PLACES=195, PETRI_TRANSITIONS=261} [2022-11-21 13:57:56,882 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 77 predicate places. [2022-11-21 13:57:56,882 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 261 transitions, 1750 flow [2022-11-21 13:57:56,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:56,883 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:57:56,883 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:57:56,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 13:57:56,884 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:57:56,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:57:56,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1619917066, now seen corresponding path program 7 times [2022-11-21 13:57:56,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:57:56,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196625339] [2022-11-21 13:57:56,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:57:56,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:57:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:57:57,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:57:57,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:57:57,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196625339] [2022-11-21 13:57:57,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196625339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:57:57,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:57:57,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:57:57,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666410148] [2022-11-21 13:57:57,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:57:57,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:57:57,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:57:57,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:57:57,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:57:57,585 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:57:57,586 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 261 transitions, 1750 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:57:57,586 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:57:57,586 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:57:57,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:58:00,738 INFO L130 PetriNetUnfolder]: 3056/9314 cut-off events. [2022-11-21 13:58:00,738 INFO L131 PetriNetUnfolder]: For 24561/24621 co-relation queries the response was YES. [2022-11-21 13:58:00,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33319 conditions, 9314 events. 3056/9314 cut-off events. For 24561/24621 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 92675 event pairs, 735 based on Foata normal form. 48/9299 useless extension candidates. Maximal degree in co-relation 33250. Up to 2993 conditions per place. [2022-11-21 13:58:00,836 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 590 selfloop transitions, 15 changer transitions 34/702 dead transitions. [2022-11-21 13:58:00,836 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 702 transitions, 6473 flow [2022-11-21 13:58:00,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:58:00,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:58:00,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 948 transitions. [2022-11-21 13:58:00,840 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7494071146245059 [2022-11-21 13:58:00,840 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 948 transitions. [2022-11-21 13:58:00,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 948 transitions. [2022-11-21 13:58:00,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:58:00,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 948 transitions. [2022-11-21 13:58:00,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.18181818181819) internal successors, (948), 11 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:00,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:00,847 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:00,847 INFO L175 Difference]: Start difference. First operand has 195 places, 261 transitions, 1750 flow. Second operand 11 states and 948 transitions. [2022-11-21 13:58:00,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 702 transitions, 6473 flow [2022-11-21 13:58:01,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 702 transitions, 6441 flow, removed 9 selfloop flow, removed 6 redundant places. [2022-11-21 13:58:01,015 INFO L231 Difference]: Finished difference. Result has 201 places, 266 transitions, 1836 flow [2022-11-21 13:58:01,016 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1729, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1836, PETRI_PLACES=201, PETRI_TRANSITIONS=266} [2022-11-21 13:58:01,017 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 83 predicate places. [2022-11-21 13:58:01,017 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 266 transitions, 1836 flow [2022-11-21 13:58:01,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:01,017 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:58:01,018 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:58:01,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 13:58:01,018 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:58:01,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:58:01,019 INFO L85 PathProgramCache]: Analyzing trace with hash 128038670, now seen corresponding path program 8 times [2022-11-21 13:58:01,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:58:01,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519800818] [2022-11-21 13:58:01,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:58:01,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:58:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:01,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:58:01,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:58:01,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519800818] [2022-11-21 13:58:01,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519800818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:58:01,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:58:01,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:58:01,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596551416] [2022-11-21 13:58:01,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:58:01,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:58:01,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:58:01,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:58:01,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:58:01,794 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:58:01,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 266 transitions, 1836 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:01,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:58:01,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:58:01,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:58:04,249 INFO L130 PetriNetUnfolder]: 3065/9486 cut-off events. [2022-11-21 13:58:04,249 INFO L131 PetriNetUnfolder]: For 26883/26935 co-relation queries the response was YES. [2022-11-21 13:58:04,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33996 conditions, 9486 events. 3065/9486 cut-off events. For 26883/26935 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 95056 event pairs, 911 based on Foata normal form. 35/9457 useless extension candidates. Maximal degree in co-relation 33925. Up to 2171 conditions per place. [2022-11-21 13:58:04,364 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 561 selfloop transitions, 18 changer transitions 58/700 dead transitions. [2022-11-21 13:58:04,364 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 700 transitions, 6520 flow [2022-11-21 13:58:04,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:58:04,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:58:04,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 950 transitions. [2022-11-21 13:58:04,368 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7509881422924901 [2022-11-21 13:58:04,368 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 950 transitions. [2022-11-21 13:58:04,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 950 transitions. [2022-11-21 13:58:04,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:58:04,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 950 transitions. [2022-11-21 13:58:04,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.36363636363636) internal successors, (950), 11 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:04,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:04,376 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:04,376 INFO L175 Difference]: Start difference. First operand has 201 places, 266 transitions, 1836 flow. Second operand 11 states and 950 transitions. [2022-11-21 13:58:04,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 700 transitions, 6520 flow [2022-11-21 13:58:04,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 700 transitions, 6475 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-21 13:58:04,584 INFO L231 Difference]: Finished difference. Result has 211 places, 269 transitions, 1902 flow [2022-11-21 13:58:04,584 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1801, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1902, PETRI_PLACES=211, PETRI_TRANSITIONS=269} [2022-11-21 13:58:04,585 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 93 predicate places. [2022-11-21 13:58:04,585 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 269 transitions, 1902 flow [2022-11-21 13:58:04,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:04,586 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:58:04,586 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:58:04,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 13:58:04,587 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:58:04,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:58:04,587 INFO L85 PathProgramCache]: Analyzing trace with hash 713026534, now seen corresponding path program 9 times [2022-11-21 13:58:04,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:58:04,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508804206] [2022-11-21 13:58:04,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:58:04,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:58:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:05,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:58:05,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:58:05,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508804206] [2022-11-21 13:58:05,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508804206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:58:05,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:58:05,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:58:05,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188430746] [2022-11-21 13:58:05,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:58:05,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:58:05,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:58:05,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:58:05,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:58:05,323 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:58:05,324 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 269 transitions, 1902 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:05,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:58:05,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:58:05,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:58:08,422 INFO L130 PetriNetUnfolder]: 3561/10941 cut-off events. [2022-11-21 13:58:08,422 INFO L131 PetriNetUnfolder]: For 32496/32558 co-relation queries the response was YES. [2022-11-21 13:58:08,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39653 conditions, 10941 events. 3561/10941 cut-off events. For 32496/32558 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 112972 event pairs, 961 based on Foata normal form. 28/10893 useless extension candidates. Maximal degree in co-relation 39576. Up to 5105 conditions per place. [2022-11-21 13:58:08,549 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 438 selfloop transitions, 18 changer transitions 48/567 dead transitions. [2022-11-21 13:58:08,550 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 567 transitions, 5252 flow [2022-11-21 13:58:08,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:58:08,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:58:08,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 926 transitions. [2022-11-21 13:58:08,554 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7320158102766798 [2022-11-21 13:58:08,554 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 926 transitions. [2022-11-21 13:58:08,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 926 transitions. [2022-11-21 13:58:08,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:58:08,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 926 transitions. [2022-11-21 13:58:08,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.18181818181819) internal successors, (926), 11 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:08,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:08,566 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:08,568 INFO L175 Difference]: Start difference. First operand has 211 places, 269 transitions, 1902 flow. Second operand 11 states and 926 transitions. [2022-11-21 13:58:08,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 567 transitions, 5252 flow [2022-11-21 13:58:08,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 567 transitions, 5199 flow, removed 18 selfloop flow, removed 6 redundant places. [2022-11-21 13:58:08,818 INFO L231 Difference]: Finished difference. Result has 219 places, 275 transitions, 2001 flow [2022-11-21 13:58:08,819 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1867, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2001, PETRI_PLACES=219, PETRI_TRANSITIONS=275} [2022-11-21 13:58:08,820 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 101 predicate places. [2022-11-21 13:58:08,820 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 275 transitions, 2001 flow [2022-11-21 13:58:08,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:08,821 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:58:08,821 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:58:08,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 13:58:08,822 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:58:08,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:58:08,823 INFO L85 PathProgramCache]: Analyzing trace with hash -686273984, now seen corresponding path program 10 times [2022-11-21 13:58:08,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:58:08,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090621395] [2022-11-21 13:58:08,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:58:08,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:58:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:09,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:58:09,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:58:09,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090621395] [2022-11-21 13:58:09,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090621395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:58:09,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:58:09,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:58:09,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49920291] [2022-11-21 13:58:09,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:58:09,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:58:09,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:58:09,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:58:09,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:58:09,934 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:58:09,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 275 transitions, 2001 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:09,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:58:09,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:58:09,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:58:13,168 INFO L130 PetriNetUnfolder]: 4013/12394 cut-off events. [2022-11-21 13:58:13,169 INFO L131 PetriNetUnfolder]: For 38267/38342 co-relation queries the response was YES. [2022-11-21 13:58:13,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45152 conditions, 12394 events. 4013/12394 cut-off events. For 38267/38342 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 131164 event pairs, 1239 based on Foata normal form. 48/12357 useless extension candidates. Maximal degree in co-relation 45071. Up to 3223 conditions per place. [2022-11-21 13:58:13,320 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 741 selfloop transitions, 18 changer transitions 32/854 dead transitions. [2022-11-21 13:58:13,321 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 854 transitions, 8196 flow [2022-11-21 13:58:13,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:58:13,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:58:13,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 968 transitions. [2022-11-21 13:58:13,324 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7652173913043478 [2022-11-21 13:58:13,325 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 968 transitions. [2022-11-21 13:58:13,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 968 transitions. [2022-11-21 13:58:13,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:58:13,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 968 transitions. [2022-11-21 13:58:13,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 88.0) internal successors, (968), 11 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:13,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:13,332 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:13,332 INFO L175 Difference]: Start difference. First operand has 219 places, 275 transitions, 2001 flow. Second operand 11 states and 968 transitions. [2022-11-21 13:58:13,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 854 transitions, 8196 flow [2022-11-21 13:58:13,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 854 transitions, 8149 flow, removed 14 selfloop flow, removed 5 redundant places. [2022-11-21 13:58:13,631 INFO L231 Difference]: Finished difference. Result has 227 places, 280 transitions, 2091 flow [2022-11-21 13:58:13,632 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1959, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2091, PETRI_PLACES=227, PETRI_TRANSITIONS=280} [2022-11-21 13:58:13,632 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 109 predicate places. [2022-11-21 13:58:13,632 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 280 transitions, 2091 flow [2022-11-21 13:58:13,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:13,633 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:58:13,633 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:58:13,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 13:58:13,634 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:58:13,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:58:13,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1400520722, now seen corresponding path program 11 times [2022-11-21 13:58:13,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:58:13,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148959428] [2022-11-21 13:58:13,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:58:13,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:58:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:14,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:58:14,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:58:14,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148959428] [2022-11-21 13:58:14,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148959428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:58:14,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:58:14,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:58:14,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662206729] [2022-11-21 13:58:14,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:58:14,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:58:14,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:58:14,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:58:14,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:58:14,864 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:58:14,866 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 280 transitions, 2091 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:14,866 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:58:14,866 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:58:14,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:58:18,309 INFO L130 PetriNetUnfolder]: 4024/12425 cut-off events. [2022-11-21 13:58:18,309 INFO L131 PetriNetUnfolder]: For 39277/39372 co-relation queries the response was YES. [2022-11-21 13:58:18,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45379 conditions, 12425 events. 4024/12425 cut-off events. For 39277/39372 co-relation queries the response was YES. Maximal size of possible extension queue 546. Compared 131853 event pairs, 1127 based on Foata normal form. 41/12375 useless extension candidates. Maximal degree in co-relation 45295. Up to 5125 conditions per place. [2022-11-21 13:58:18,469 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 426 selfloop transitions, 22 changer transitions 60/571 dead transitions. [2022-11-21 13:58:18,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 571 transitions, 5333 flow [2022-11-21 13:58:18,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:58:18,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:58:18,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 930 transitions. [2022-11-21 13:58:18,473 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7351778656126482 [2022-11-21 13:58:18,473 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 930 transitions. [2022-11-21 13:58:18,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 930 transitions. [2022-11-21 13:58:18,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:58:18,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 930 transitions. [2022-11-21 13:58:18,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.54545454545455) internal successors, (930), 11 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:18,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:18,480 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:18,481 INFO L175 Difference]: Start difference. First operand has 227 places, 280 transitions, 2091 flow. Second operand 11 states and 930 transitions. [2022-11-21 13:58:18,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 571 transitions, 5333 flow [2022-11-21 13:58:18,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 571 transitions, 5295 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-21 13:58:18,740 INFO L231 Difference]: Finished difference. Result has 237 places, 283 transitions, 2169 flow [2022-11-21 13:58:18,740 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2055, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2169, PETRI_PLACES=237, PETRI_TRANSITIONS=283} [2022-11-21 13:58:18,741 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 119 predicate places. [2022-11-21 13:58:18,741 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 283 transitions, 2169 flow [2022-11-21 13:58:18,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:18,742 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:58:18,742 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:58:18,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 13:58:18,743 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:58:18,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:58:18,743 INFO L85 PathProgramCache]: Analyzing trace with hash -153720776, now seen corresponding path program 12 times [2022-11-21 13:58:18,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:58:18,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109892418] [2022-11-21 13:58:18,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:58:18,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:58:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:19,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:58:19,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:58:19,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109892418] [2022-11-21 13:58:19,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109892418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:58:19,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:58:19,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:58:19,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113250510] [2022-11-21 13:58:19,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:58:19,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:58:19,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:58:19,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:58:19,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:58:19,905 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:58:19,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 283 transitions, 2169 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:19,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:58:19,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:58:19,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:58:23,824 INFO L130 PetriNetUnfolder]: 4942/15353 cut-off events. [2022-11-21 13:58:23,824 INFO L131 PetriNetUnfolder]: For 52376/52453 co-relation queries the response was YES. [2022-11-21 13:58:23,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56601 conditions, 15353 events. 4942/15353 cut-off events. For 52376/52453 co-relation queries the response was YES. Maximal size of possible extension queue 684. Compared 169652 event pairs, 1677 based on Foata normal form. 37/15265 useless extension candidates. Maximal degree in co-relation 56511. Up to 3197 conditions per place. [2022-11-21 13:58:24,017 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 1045 selfloop transitions, 19 changer transitions 32/1159 dead transitions. [2022-11-21 13:58:24,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 1159 transitions, 11455 flow [2022-11-21 13:58:24,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:58:24,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:58:24,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1005 transitions. [2022-11-21 13:58:24,022 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7944664031620553 [2022-11-21 13:58:24,023 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1005 transitions. [2022-11-21 13:58:24,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1005 transitions. [2022-11-21 13:58:24,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:58:24,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1005 transitions. [2022-11-21 13:58:24,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 91.36363636363636) internal successors, (1005), 11 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:24,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:24,032 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:24,032 INFO L175 Difference]: Start difference. First operand has 237 places, 283 transitions, 2169 flow. Second operand 11 states and 1005 transitions. [2022-11-21 13:58:24,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 1159 transitions, 11455 flow [2022-11-21 13:58:24,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 1159 transitions, 11317 flow, removed 22 selfloop flow, removed 10 redundant places. [2022-11-21 13:58:24,352 INFO L231 Difference]: Finished difference. Result has 240 places, 289 transitions, 2214 flow [2022-11-21 13:58:24,352 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2057, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2214, PETRI_PLACES=240, PETRI_TRANSITIONS=289} [2022-11-21 13:58:24,352 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 122 predicate places. [2022-11-21 13:58:24,353 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 289 transitions, 2214 flow [2022-11-21 13:58:24,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:24,353 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:58:24,354 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:58:24,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 13:58:24,354 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:58:24,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:58:24,355 INFO L85 PathProgramCache]: Analyzing trace with hash 2002622261, now seen corresponding path program 1 times [2022-11-21 13:58:24,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:58:24,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139846757] [2022-11-21 13:58:24,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:58:24,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:58:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:25,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:58:25,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:58:25,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139846757] [2022-11-21 13:58:25,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139846757] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:58:25,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:58:25,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:58:25,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385871288] [2022-11-21 13:58:25,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:58:25,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:58:25,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:58:25,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:58:25,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:58:25,424 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:58:25,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 289 transitions, 2214 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:25,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:58:25,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:58:25,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:58:29,248 INFO L130 PetriNetUnfolder]: 4941/15374 cut-off events. [2022-11-21 13:58:29,248 INFO L131 PetriNetUnfolder]: For 47044/47122 co-relation queries the response was YES. [2022-11-21 13:58:29,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56129 conditions, 15374 events. 4941/15374 cut-off events. For 47044/47122 co-relation queries the response was YES. Maximal size of possible extension queue 684. Compared 170199 event pairs, 1637 based on Foata normal form. 30/15287 useless extension candidates. Maximal degree in co-relation 56040. Up to 4943 conditions per place. [2022-11-21 13:58:29,429 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 578 selfloop transitions, 23 changer transitions 59/723 dead transitions. [2022-11-21 13:58:29,429 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 723 transitions, 7015 flow [2022-11-21 13:58:29,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:58:29,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:58:29,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 947 transitions. [2022-11-21 13:58:29,432 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7486166007905138 [2022-11-21 13:58:29,432 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 947 transitions. [2022-11-21 13:58:29,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 947 transitions. [2022-11-21 13:58:29,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:58:29,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 947 transitions. [2022-11-21 13:58:29,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.0909090909091) internal successors, (947), 11 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:29,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:29,436 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:29,436 INFO L175 Difference]: Start difference. First operand has 240 places, 289 transitions, 2214 flow. Second operand 11 states and 947 transitions. [2022-11-21 13:58:29,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 723 transitions, 7015 flow [2022-11-21 13:58:29,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 723 transitions, 6968 flow, removed 12 selfloop flow, removed 5 redundant places. [2022-11-21 13:58:29,698 INFO L231 Difference]: Finished difference. Result has 250 places, 294 transitions, 2329 flow [2022-11-21 13:58:29,699 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2168, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2329, PETRI_PLACES=250, PETRI_TRANSITIONS=294} [2022-11-21 13:58:29,699 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 132 predicate places. [2022-11-21 13:58:29,700 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 294 transitions, 2329 flow [2022-11-21 13:58:29,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:29,700 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:58:29,700 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:58:29,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 13:58:29,701 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:58:29,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:58:29,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1655173961, now seen corresponding path program 2 times [2022-11-21 13:58:29,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:58:29,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899566905] [2022-11-21 13:58:29,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:58:29,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:58:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:30,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:58:30,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:58:30,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899566905] [2022-11-21 13:58:30,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899566905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:58:30,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:58:30,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:58:30,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943234436] [2022-11-21 13:58:30,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:58:30,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:58:30,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:58:30,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:58:30,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:58:30,496 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:58:30,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 294 transitions, 2329 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:30,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:58:30,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:58:30,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:58:34,023 INFO L130 PetriNetUnfolder]: 4477/13948 cut-off events. [2022-11-21 13:58:34,023 INFO L131 PetriNetUnfolder]: For 45135/45201 co-relation queries the response was YES. [2022-11-21 13:58:34,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51333 conditions, 13948 events. 4477/13948 cut-off events. For 45135/45201 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 151538 event pairs, 1492 based on Foata normal form. 22/13857 useless extension candidates. Maximal degree in co-relation 51239. Up to 3903 conditions per place. [2022-11-21 13:58:34,189 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 549 selfloop transitions, 16 changer transitions 56/684 dead transitions. [2022-11-21 13:58:34,189 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 684 transitions, 6684 flow [2022-11-21 13:58:34,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:58:34,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:58:34,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 933 transitions. [2022-11-21 13:58:34,192 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7375494071146245 [2022-11-21 13:58:34,192 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 933 transitions. [2022-11-21 13:58:34,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 933 transitions. [2022-11-21 13:58:34,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:58:34,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 933 transitions. [2022-11-21 13:58:34,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.81818181818181) internal successors, (933), 11 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:34,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:34,198 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:34,198 INFO L175 Difference]: Start difference. First operand has 250 places, 294 transitions, 2329 flow. Second operand 11 states and 933 transitions. [2022-11-21 13:58:34,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 684 transitions, 6684 flow [2022-11-21 13:58:34,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 684 transitions, 6651 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-11-21 13:58:34,448 INFO L231 Difference]: Finished difference. Result has 254 places, 288 transitions, 2245 flow [2022-11-21 13:58:34,448 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2270, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2245, PETRI_PLACES=254, PETRI_TRANSITIONS=288} [2022-11-21 13:58:34,449 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 136 predicate places. [2022-11-21 13:58:34,449 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 288 transitions, 2245 flow [2022-11-21 13:58:34,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:34,450 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:58:34,450 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:58:34,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-21 13:58:34,450 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:58:34,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:58:34,451 INFO L85 PathProgramCache]: Analyzing trace with hash -744027233, now seen corresponding path program 3 times [2022-11-21 13:58:34,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:58:34,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092304557] [2022-11-21 13:58:34,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:58:34,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:58:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:35,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:58:35,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:58:35,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092304557] [2022-11-21 13:58:35,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092304557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:58:35,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:58:35,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:58:35,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546173965] [2022-11-21 13:58:35,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:58:35,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:58:35,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:58:35,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:58:35,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:58:35,541 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:58:35,541 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 288 transitions, 2245 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:35,542 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:58:35,542 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:58:35,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:58:39,136 INFO L130 PetriNetUnfolder]: 4449/13779 cut-off events. [2022-11-21 13:58:39,136 INFO L131 PetriNetUnfolder]: For 44967/45049 co-relation queries the response was YES. [2022-11-21 13:58:39,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50783 conditions, 13779 events. 4449/13779 cut-off events. For 44967/45049 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 149246 event pairs, 1474 based on Foata normal form. 31/13698 useless extension candidates. Maximal degree in co-relation 50689. Up to 3197 conditions per place. [2022-11-21 13:58:39,309 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 733 selfloop transitions, 22 changer transitions 44/862 dead transitions. [2022-11-21 13:58:39,309 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 862 transitions, 8445 flow [2022-11-21 13:58:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:58:39,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:58:39,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 967 transitions. [2022-11-21 13:58:39,312 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7644268774703558 [2022-11-21 13:58:39,312 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 967 transitions. [2022-11-21 13:58:39,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 967 transitions. [2022-11-21 13:58:39,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:58:39,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 967 transitions. [2022-11-21 13:58:39,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 87.9090909090909) internal successors, (967), 11 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:39,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:39,318 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:39,318 INFO L175 Difference]: Start difference. First operand has 254 places, 288 transitions, 2245 flow. Second operand 11 states and 967 transitions. [2022-11-21 13:58:39,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 862 transitions, 8445 flow [2022-11-21 13:58:39,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 862 transitions, 8324 flow, removed 28 selfloop flow, removed 15 redundant places. [2022-11-21 13:58:39,624 INFO L231 Difference]: Finished difference. Result has 247 places, 290 transitions, 2257 flow [2022-11-21 13:58:39,624 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2158, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2257, PETRI_PLACES=247, PETRI_TRANSITIONS=290} [2022-11-21 13:58:39,624 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 129 predicate places. [2022-11-21 13:58:39,624 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 290 transitions, 2257 flow [2022-11-21 13:58:39,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:39,625 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:58:39,625 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:58:39,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-21 13:58:39,625 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:58:39,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:58:39,625 INFO L85 PathProgramCache]: Analyzing trace with hash 80592799, now seen corresponding path program 4 times [2022-11-21 13:58:39,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:58:39,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178992285] [2022-11-21 13:58:39,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:58:39,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:58:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:40,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:58:40,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:58:40,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178992285] [2022-11-21 13:58:40,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178992285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:58:40,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:58:40,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:58:40,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552423620] [2022-11-21 13:58:40,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:58:40,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:58:40,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:58:40,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:58:40,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:58:40,097 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:58:40,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 290 transitions, 2257 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:40,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:58:40,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:58:40,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:58:43,267 INFO L130 PetriNetUnfolder]: 3983/12457 cut-off events. [2022-11-21 13:58:43,267 INFO L131 PetriNetUnfolder]: For 38862/38919 co-relation queries the response was YES. [2022-11-21 13:58:43,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45437 conditions, 12457 events. 3983/12457 cut-off events. For 38862/38919 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 132640 event pairs, 1426 based on Foata normal form. 22/12378 useless extension candidates. Maximal degree in co-relation 45347. Up to 3197 conditions per place. [2022-11-21 13:58:43,417 INFO L137 encePairwiseOnDemand]: 102/115 looper letters, 719 selfloop transitions, 18 changer transitions 59/859 dead transitions. [2022-11-21 13:58:43,417 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 859 transitions, 8363 flow [2022-11-21 13:58:43,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:58:43,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:58:43,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 967 transitions. [2022-11-21 13:58:43,420 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7644268774703558 [2022-11-21 13:58:43,420 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 967 transitions. [2022-11-21 13:58:43,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 967 transitions. [2022-11-21 13:58:43,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:58:43,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 967 transitions. [2022-11-21 13:58:43,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 87.9090909090909) internal successors, (967), 11 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:43,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:43,426 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:43,427 INFO L175 Difference]: Start difference. First operand has 247 places, 290 transitions, 2257 flow. Second operand 11 states and 967 transitions. [2022-11-21 13:58:43,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 859 transitions, 8363 flow [2022-11-21 13:58:43,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 859 transitions, 8328 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-11-21 13:58:43,640 INFO L231 Difference]: Finished difference. Result has 249 places, 286 transitions, 2188 flow [2022-11-21 13:58:43,640 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2186, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2188, PETRI_PLACES=249, PETRI_TRANSITIONS=286} [2022-11-21 13:58:43,641 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 131 predicate places. [2022-11-21 13:58:43,641 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 286 transitions, 2188 flow [2022-11-21 13:58:43,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:43,641 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:58:43,642 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:58:43,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-21 13:58:43,642 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:58:43,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:58:43,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1139326009, now seen corresponding path program 5 times [2022-11-21 13:58:43,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:58:43,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445803981] [2022-11-21 13:58:43,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:58:43,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:58:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:44,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:58:44,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:58:44,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445803981] [2022-11-21 13:58:44,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445803981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:58:44,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:58:44,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:58:44,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758180089] [2022-11-21 13:58:44,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:58:44,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:58:44,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:58:44,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:58:44,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:58:44,463 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:58:44,464 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 286 transitions, 2188 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:44,464 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:58:44,464 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:58:44,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:58:47,202 INFO L130 PetriNetUnfolder]: 3504/11024 cut-off events. [2022-11-21 13:58:47,202 INFO L131 PetriNetUnfolder]: For 33029/33070 co-relation queries the response was YES. [2022-11-21 13:58:47,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39929 conditions, 11024 events. 3504/11024 cut-off events. For 33029/33070 co-relation queries the response was YES. Maximal size of possible extension queue 480. Compared 114632 event pairs, 1376 based on Foata normal form. 32/10966 useless extension candidates. Maximal degree in co-relation 39840. Up to 3197 conditions per place. [2022-11-21 13:58:47,319 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 528 selfloop transitions, 12 changer transitions 71/674 dead transitions. [2022-11-21 13:58:47,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 674 transitions, 6487 flow [2022-11-21 13:58:47,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:58:47,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:58:47,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 933 transitions. [2022-11-21 13:58:47,322 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7375494071146245 [2022-11-21 13:58:47,322 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 933 transitions. [2022-11-21 13:58:47,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 933 transitions. [2022-11-21 13:58:47,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:58:47,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 933 transitions. [2022-11-21 13:58:47,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.81818181818181) internal successors, (933), 11 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:47,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:47,326 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:47,326 INFO L175 Difference]: Start difference. First operand has 249 places, 286 transitions, 2188 flow. Second operand 11 states and 933 transitions. [2022-11-21 13:58:47,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 674 transitions, 6487 flow [2022-11-21 13:58:47,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 674 transitions, 6393 flow, removed 18 selfloop flow, removed 12 redundant places. [2022-11-21 13:58:47,494 INFO L231 Difference]: Finished difference. Result has 244 places, 278 transitions, 2013 flow [2022-11-21 13:58:47,494 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=2072, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2013, PETRI_PLACES=244, PETRI_TRANSITIONS=278} [2022-11-21 13:58:47,495 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 126 predicate places. [2022-11-21 13:58:47,495 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 278 transitions, 2013 flow [2022-11-21 13:58:47,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:47,496 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:58:47,496 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:58:47,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-21 13:58:47,496 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:58:47,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:58:47,497 INFO L85 PathProgramCache]: Analyzing trace with hash 139278361, now seen corresponding path program 6 times [2022-11-21 13:58:47,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:58:47,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284854114] [2022-11-21 13:58:47,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:58:47,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:58:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:48,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:58:48,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:58:48,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284854114] [2022-11-21 13:58:48,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284854114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:58:48,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:58:48,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:58:48,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687615081] [2022-11-21 13:58:48,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:58:48,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:58:48,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:58:48,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:58:48,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:58:48,263 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:58:48,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 278 transitions, 2013 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:48,264 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:58:48,264 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:58:48,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:58:50,331 INFO L130 PetriNetUnfolder]: 3052/9433 cut-off events. [2022-11-21 13:58:50,331 INFO L131 PetriNetUnfolder]: For 24680/24718 co-relation queries the response was YES. [2022-11-21 13:58:50,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34116 conditions, 9433 events. 3052/9433 cut-off events. For 24680/24718 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 94489 event pairs, 971 based on Foata normal form. 20/9382 useless extension candidates. Maximal degree in co-relation 34057. Up to 3197 conditions per place. [2022-11-21 13:58:50,430 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 380 selfloop transitions, 12 changer transitions 70/525 dead transitions. [2022-11-21 13:58:50,430 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 525 transitions, 4830 flow [2022-11-21 13:58:50,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:58:50,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:58:50,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 912 transitions. [2022-11-21 13:58:50,433 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7209486166007905 [2022-11-21 13:58:50,433 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 912 transitions. [2022-11-21 13:58:50,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 912 transitions. [2022-11-21 13:58:50,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:58:50,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 912 transitions. [2022-11-21 13:58:50,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 82.9090909090909) internal successors, (912), 11 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:50,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:50,438 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:50,438 INFO L175 Difference]: Start difference. First operand has 244 places, 278 transitions, 2013 flow. Second operand 11 states and 912 transitions. [2022-11-21 13:58:50,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 525 transitions, 4830 flow [2022-11-21 13:58:50,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 525 transitions, 4788 flow, removed 5 selfloop flow, removed 11 redundant places. [2022-11-21 13:58:50,570 INFO L231 Difference]: Finished difference. Result has 233 places, 273 transitions, 1931 flow [2022-11-21 13:58:50,570 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1943, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1931, PETRI_PLACES=233, PETRI_TRANSITIONS=273} [2022-11-21 13:58:50,571 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 115 predicate places. [2022-11-21 13:58:50,571 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 273 transitions, 1931 flow [2022-11-21 13:58:50,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:50,572 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:58:50,572 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:58:50,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-21 13:58:50,572 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:58:50,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:58:50,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1989410611, now seen corresponding path program 7 times [2022-11-21 13:58:50,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:58:50,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418325023] [2022-11-21 13:58:50,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:58:50,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:58:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:51,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:58:51,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:58:51,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418325023] [2022-11-21 13:58:51,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418325023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:58:51,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:58:51,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:58:51,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214344334] [2022-11-21 13:58:51,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:58:51,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:58:51,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:58:51,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:58:51,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:58:51,139 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:58:51,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 273 transitions, 1931 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:51,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:58:51,141 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:58:51,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:58:53,508 INFO L130 PetriNetUnfolder]: 3038/9479 cut-off events. [2022-11-21 13:58:53,508 INFO L131 PetriNetUnfolder]: For 24711/24748 co-relation queries the response was YES. [2022-11-21 13:58:53,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33956 conditions, 9479 events. 3038/9479 cut-off events. For 24711/24748 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 95290 event pairs, 1089 based on Foata normal form. 32/9439 useless extension candidates. Maximal degree in co-relation 33901. Up to 3197 conditions per place. [2022-11-21 13:58:53,617 INFO L137 encePairwiseOnDemand]: 104/115 looper letters, 537 selfloop transitions, 13 changer transitions 54/667 dead transitions. [2022-11-21 13:58:53,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 667 transitions, 6267 flow [2022-11-21 13:58:53,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 13:58:53,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 13:58:53,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 931 transitions. [2022-11-21 13:58:53,620 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7359683794466403 [2022-11-21 13:58:53,620 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 931 transitions. [2022-11-21 13:58:53,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 931 transitions. [2022-11-21 13:58:53,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:58:53,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 931 transitions. [2022-11-21 13:58:53,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 84.63636363636364) internal successors, (931), 11 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:53,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:53,626 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 115.0) internal successors, (1380), 12 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:53,626 INFO L175 Difference]: Start difference. First operand has 233 places, 273 transitions, 1931 flow. Second operand 11 states and 931 transitions. [2022-11-21 13:58:53,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 667 transitions, 6267 flow [2022-11-21 13:58:53,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 667 transitions, 6206 flow, removed 13 selfloop flow, removed 10 redundant places. [2022-11-21 13:58:53,807 INFO L231 Difference]: Finished difference. Result has 230 places, 273 transitions, 1926 flow [2022-11-21 13:58:53,807 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=1889, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1926, PETRI_PLACES=230, PETRI_TRANSITIONS=273} [2022-11-21 13:58:53,808 INFO L288 CegarLoopForPetriNet]: 118 programPoint places, 112 predicate places. [2022-11-21 13:58:53,808 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 273 transitions, 1926 flow [2022-11-21 13:58:53,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:53,809 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:58:53,809 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:58:53,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-21 13:58:53,809 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-21 13:58:53,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:58:53,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1310882627, now seen corresponding path program 8 times [2022-11-21 13:58:53,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:58:53,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455972853] [2022-11-21 13:58:53,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:58:53,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:58:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:58:54,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:58:54,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:58:54,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455972853] [2022-11-21 13:58:54,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455972853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:58:54,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:58:54,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 13:58:54,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097666300] [2022-11-21 13:58:54,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:58:54,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:58:54,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:58:54,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:58:54,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:58:54,347 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 115 [2022-11-21 13:58:54,348 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 273 transitions, 1926 flow. Second operand has 11 states, 11 states have (on average 69.9090909090909) internal successors, (769), 11 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:58:54,348 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:58:54,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 115 [2022-11-21 13:58:54,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand