./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.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_daccd282-4d1b-476b-92d1-98099a281c9b/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccd282-4d1b-476b-92d1-98099a281c9b/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_daccd282-4d1b-476b-92d1-98099a281c9b/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccd282-4d1b-476b-92d1-98099a281c9b/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccd282-4d1b-476b-92d1-98099a281c9b/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_daccd282-4d1b-476b-92d1-98099a281c9b/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 dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --- 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 16:35:39,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:35:39,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:35:39,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:35:39,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:35:39,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:35:39,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:35:39,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:35:39,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:35:39,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:35:39,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:35:39,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:35:39,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:35:39,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:35:39,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:35:39,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:35:39,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:35:39,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:35:39,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:35:39,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:35:39,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:35:39,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:35:39,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:35:39,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:35:39,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:35:39,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:35:39,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:35:39,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:35:39,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:35:39,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:35:39,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:35:39,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:35:39,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:35:39,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:35:39,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:35:39,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:35:39,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:35:39,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:35:39,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:35:39,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:35:39,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:35:39,221 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccd282-4d1b-476b-92d1-98099a281c9b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:35:39,261 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:35:39,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:35:39,262 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:35:39,262 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:35:39,263 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:35:39,263 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:35:39,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:35:39,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:35:39,264 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:35:39,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:35:39,266 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:35:39,266 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:35:39,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:35:39,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:35:39,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:35:39,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:35:39,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:35:39,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:35:39,267 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:35:39,267 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:35:39,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:35:39,268 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:35:39,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:35:39,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:35:39,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:35:39,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:35:39,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:35:39,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:35:39,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:35:39,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:35:39,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:35:39,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:35:39,270 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:35:39,270 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:35:39,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:35:39,271 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_daccd282-4d1b-476b-92d1-98099a281c9b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccd282-4d1b-476b-92d1-98099a281c9b/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 [2022-11-21 16:35:39,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:35:39,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:35:39,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:35:39,660 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:35:39,661 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:35:39,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccd282-4d1b-476b-92d1-98099a281c9b/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-11-21 16:35:42,730 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:35:43,061 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:35:43,062 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccd282-4d1b-476b-92d1-98099a281c9b/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2022-11-21 16:35:43,081 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccd282-4d1b-476b-92d1-98099a281c9b/bin/uautomizer-vX5HgA9Q3a/data/8d44bfbae/5d3295d4a3404128a5197d3195643c53/FLAG76f345789 [2022-11-21 16:35:43,291 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccd282-4d1b-476b-92d1-98099a281c9b/bin/uautomizer-vX5HgA9Q3a/data/8d44bfbae/5d3295d4a3404128a5197d3195643c53 [2022-11-21 16:35:43,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:35:43,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:35:43,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:35:43,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:35:43,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:35:43,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:35:43" (1/1) ... [2022-11-21 16:35:43,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65b355e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:43, skipping insertion in model container [2022-11-21 16:35:43,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:35:43" (1/1) ... [2022-11-21 16:35:43,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:35:43,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:35:43,512 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 16:35:44,363 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccd282-4d1b-476b-92d1-98099a281c9b/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-11-21 16:35:44,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:35:44,444 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:35:44,458 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 16:35:44,503 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccd282-4d1b-476b-92d1-98099a281c9b/sv-benchmarks/c/ldv-races/race-2_2-container_of.i[75002,75015] [2022-11-21 16:35:44,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:35:44,682 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:35:44,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:44 WrapperNode [2022-11-21 16:35:44,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:35:44,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:35:44,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:35:44,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:35:44,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:44" (1/1) ... [2022-11-21 16:35:44,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:44" (1/1) ... [2022-11-21 16:35:44,763 INFO L138 Inliner]: procedures = 468, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 173 [2022-11-21 16:35:44,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:35:44,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:35:44,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:35:44,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:35:44,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:44" (1/1) ... [2022-11-21 16:35:44,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:44" (1/1) ... [2022-11-21 16:35:44,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:44" (1/1) ... [2022-11-21 16:35:44,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:44" (1/1) ... [2022-11-21 16:35:44,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:44" (1/1) ... [2022-11-21 16:35:44,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:44" (1/1) ... [2022-11-21 16:35:44,824 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:44" (1/1) ... [2022-11-21 16:35:44,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:44" (1/1) ... [2022-11-21 16:35:44,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:35:44,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:35:44,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:35:44,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:35:44,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:44" (1/1) ... [2022-11-21 16:35:44,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:35:44,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccd282-4d1b-476b-92d1-98099a281c9b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:35:44,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccd282-4d1b-476b-92d1-98099a281c9b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:35:44,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daccd282-4d1b-476b-92d1-98099a281c9b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:35:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:35:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:35:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:35:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:35:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:35:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:35:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:35:44,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:35:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-21 16:35:44,971 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-21 16:35:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:35:44,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:35:44,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:35:44,973 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 16:35:45,344 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:35:45,346 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:35:45,813 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:35:45,864 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:35:45,865 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:35:45,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:35:45 BoogieIcfgContainer [2022-11-21 16:35:45,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:35:45,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:35:45,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:35:45,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:35:45,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:35:43" (1/3) ... [2022-11-21 16:35:45,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2cd727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:35:45, skipping insertion in model container [2022-11-21 16:35:45,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:35:44" (2/3) ... [2022-11-21 16:35:45,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2cd727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:35:45, skipping insertion in model container [2022-11-21 16:35:45,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:35:45" (3/3) ... [2022-11-21 16:35:45,877 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2022-11-21 16:35:45,886 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:35:45,897 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:35:45,897 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-11-21 16:35:45,898 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:35:45,969 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 16:35:46,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 233 places, 233 transitions, 482 flow [2022-11-21 16:35:46,113 INFO L130 PetriNetUnfolder]: 8/310 cut-off events. [2022-11-21 16:35:46,113 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 16:35:46,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 310 events. 8/310 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 576 event pairs, 0 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 164. Up to 4 conditions per place. [2022-11-21 16:35:46,128 INFO L82 GeneralOperation]: Start removeDead. Operand has 233 places, 233 transitions, 482 flow [2022-11-21 16:35:46,136 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 231 places, 230 transitions, 472 flow [2022-11-21 16:35:46,205 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:35:46,214 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;@7d9e1f14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:35:46,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-21 16:35:46,234 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-11-21 16:35:46,234 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:35:46,234 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:46,235 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] [2022-11-21 16:35:46,236 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:35:46,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:46,243 INFO L85 PathProgramCache]: Analyzing trace with hash 683495268, now seen corresponding path program 1 times [2022-11-21 16:35:46,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:46,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741999389] [2022-11-21 16:35:46,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:46,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:47,264 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 16:35:47,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:47,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741999389] [2022-11-21 16:35:47,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741999389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:47,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:47,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:35:47,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710701678] [2022-11-21 16:35:47,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:47,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:35:47,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:47,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:35:47,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:35:47,334 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 233 [2022-11-21 16:35:47,342 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 230 transitions, 472 flow. Second operand has 6 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 0 states have call successors, (0), 0 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 16:35:47,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:47,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 233 [2022-11-21 16:35:47,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:48,327 INFO L130 PetriNetUnfolder]: 754/2065 cut-off events. [2022-11-21 16:35:48,328 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-21 16:35:48,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3427 conditions, 2065 events. 754/2065 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 12920 event pairs, 753 based on Foata normal form. 36/1939 useless extension candidates. Maximal degree in co-relation 3064. Up to 1339 conditions per place. [2022-11-21 16:35:48,347 INFO L137 encePairwiseOnDemand]: 217/233 looper letters, 71 selfloop transitions, 5 changer transitions 17/215 dead transitions. [2022-11-21 16:35:48,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 215 transitions, 596 flow [2022-11-21 16:35:48,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:35:48,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:35:48,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 934 transitions. [2022-11-21 16:35:48,369 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6680972818311874 [2022-11-21 16:35:48,370 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 934 transitions. [2022-11-21 16:35:48,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 934 transitions. [2022-11-21 16:35:48,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:48,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 934 transitions. [2022-11-21 16:35:48,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 155.66666666666666) internal successors, (934), 6 states have internal predecessors, (934), 0 states have call successors, (0), 0 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 16:35:48,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 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 16:35:48,396 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 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 16:35:48,398 INFO L175 Difference]: Start difference. First operand has 231 places, 230 transitions, 472 flow. Second operand 6 states and 934 transitions. [2022-11-21 16:35:48,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 215 transitions, 596 flow [2022-11-21 16:35:48,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 215 transitions, 588 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:35:48,411 INFO L231 Difference]: Finished difference. Result has 221 places, 198 transitions, 410 flow [2022-11-21 16:35:48,413 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=410, PETRI_PLACES=221, PETRI_TRANSITIONS=198} [2022-11-21 16:35:48,419 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -10 predicate places. [2022-11-21 16:35:48,419 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 198 transitions, 410 flow [2022-11-21 16:35:48,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 0 states have call successors, (0), 0 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 16:35:48,420 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:48,421 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] [2022-11-21 16:35:48,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:35:48,422 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:35:48,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:48,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1481587897, now seen corresponding path program 1 times [2022-11-21 16:35:48,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:48,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890744203] [2022-11-21 16:35:48,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:48,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:48,984 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 16:35:48,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:48,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890744203] [2022-11-21 16:35:48,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890744203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:48,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:48,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:35:48,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606572858] [2022-11-21 16:35:48,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:48,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:35:48,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:48,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:35:48,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:35:48,991 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 233 [2022-11-21 16:35:48,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 198 transitions, 410 flow. Second operand has 6 states, 6 states have (on average 143.83333333333334) internal successors, (863), 6 states have internal predecessors, (863), 0 states have call successors, (0), 0 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 16:35:48,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:48,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 233 [2022-11-21 16:35:48,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:49,763 INFO L130 PetriNetUnfolder]: 730/1783 cut-off events. [2022-11-21 16:35:49,763 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 16:35:49,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3097 conditions, 1783 events. 730/1783 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 10726 event pairs, 729 based on Foata normal form. 0/1658 useless extension candidates. Maximal degree in co-relation 3035. Up to 1297 conditions per place. [2022-11-21 16:35:49,774 INFO L137 encePairwiseOnDemand]: 227/233 looper letters, 70 selfloop transitions, 5 changer transitions 0/197 dead transitions. [2022-11-21 16:35:49,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 197 transitions, 558 flow [2022-11-21 16:35:49,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:35:49,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:35:49,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 922 transitions. [2022-11-21 16:35:49,778 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6595135908440629 [2022-11-21 16:35:49,778 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 922 transitions. [2022-11-21 16:35:49,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 922 transitions. [2022-11-21 16:35:49,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:49,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 922 transitions. [2022-11-21 16:35:49,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 153.66666666666666) internal successors, (922), 6 states have internal predecessors, (922), 0 states have call successors, (0), 0 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 16:35:49,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 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 16:35:49,786 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 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 16:35:49,786 INFO L175 Difference]: Start difference. First operand has 221 places, 198 transitions, 410 flow. Second operand 6 states and 922 transitions. [2022-11-21 16:35:49,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 197 transitions, 558 flow [2022-11-21 16:35:49,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 197 transitions, 548 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:35:49,792 INFO L231 Difference]: Finished difference. Result has 203 places, 197 transitions, 408 flow [2022-11-21 16:35:49,792 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=408, PETRI_PLACES=203, PETRI_TRANSITIONS=197} [2022-11-21 16:35:49,793 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -28 predicate places. [2022-11-21 16:35:49,794 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 197 transitions, 408 flow [2022-11-21 16:35:49,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.83333333333334) internal successors, (863), 6 states have internal predecessors, (863), 0 states have call successors, (0), 0 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 16:35:49,795 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:49,795 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] [2022-11-21 16:35:49,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:35:49,795 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:35:49,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:49,796 INFO L85 PathProgramCache]: Analyzing trace with hash -2035216466, now seen corresponding path program 1 times [2022-11-21 16:35:49,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:49,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343343043] [2022-11-21 16:35:49,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:49,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:50,350 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 16:35:50,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:50,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343343043] [2022-11-21 16:35:50,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343343043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:50,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:50,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:35:50,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772101428] [2022-11-21 16:35:50,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:50,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:35:50,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:50,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:35:50,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:35:50,354 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 233 [2022-11-21 16:35:50,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 197 transitions, 408 flow. Second operand has 6 states, 6 states have (on average 138.33333333333334) internal successors, (830), 6 states have internal predecessors, (830), 0 states have call successors, (0), 0 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 16:35:50,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:50,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 233 [2022-11-21 16:35:50,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:51,341 INFO L130 PetriNetUnfolder]: 1006/2264 cut-off events. [2022-11-21 16:35:51,341 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 16:35:51,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4043 conditions, 2264 events. 1006/2264 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 13868 event pairs, 807 based on Foata normal form. 0/2136 useless extension candidates. Maximal degree in co-relation 3970. Up to 1667 conditions per place. [2022-11-21 16:35:51,357 INFO L137 encePairwiseOnDemand]: 220/233 looper letters, 78 selfloop transitions, 30 changer transitions 0/226 dead transitions. [2022-11-21 16:35:51,357 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 226 transitions, 682 flow [2022-11-21 16:35:51,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:35:51,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:35:51,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 919 transitions. [2022-11-21 16:35:51,362 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6573676680972819 [2022-11-21 16:35:51,362 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 919 transitions. [2022-11-21 16:35:51,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 919 transitions. [2022-11-21 16:35:51,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:51,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 919 transitions. [2022-11-21 16:35:51,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 153.16666666666666) internal successors, (919), 6 states have internal predecessors, (919), 0 states have call successors, (0), 0 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 16:35:51,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 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 16:35:51,370 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 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 16:35:51,370 INFO L175 Difference]: Start difference. First operand has 203 places, 197 transitions, 408 flow. Second operand 6 states and 919 transitions. [2022-11-21 16:35:51,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 226 transitions, 682 flow [2022-11-21 16:35:51,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 226 transitions, 672 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:35:51,376 INFO L231 Difference]: Finished difference. Result has 208 places, 226 transitions, 600 flow [2022-11-21 16:35:51,377 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=600, PETRI_PLACES=208, PETRI_TRANSITIONS=226} [2022-11-21 16:35:51,378 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -23 predicate places. [2022-11-21 16:35:51,379 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 226 transitions, 600 flow [2022-11-21 16:35:51,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.33333333333334) internal successors, (830), 6 states have internal predecessors, (830), 0 states have call successors, (0), 0 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 16:35:51,380 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:51,380 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] [2022-11-21 16:35:51,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:35:51,381 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:35:51,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:51,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1340023378, now seen corresponding path program 1 times [2022-11-21 16:35:51,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:51,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413096590] [2022-11-21 16:35:51,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:51,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:51,540 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 16:35:51,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:51,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413096590] [2022-11-21 16:35:51,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413096590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:51,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:51,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:35:51,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582107077] [2022-11-21 16:35:51,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:51,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:35:51,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:51,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:35:51,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:35:51,550 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 233 [2022-11-21 16:35:51,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 226 transitions, 600 flow. Second operand has 5 states, 5 states have (on average 199.8) internal successors, (999), 5 states have internal predecessors, (999), 0 states have call successors, (0), 0 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 16:35:51,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:51,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 233 [2022-11-21 16:35:51,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:51,975 INFO L130 PetriNetUnfolder]: 437/1855 cut-off events. [2022-11-21 16:35:51,976 INFO L131 PetriNetUnfolder]: For 493/525 co-relation queries the response was YES. [2022-11-21 16:35:52,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3325 conditions, 1855 events. 437/1855 cut-off events. For 493/525 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 12569 event pairs, 252 based on Foata normal form. 0/1751 useless extension candidates. Maximal degree in co-relation 2113. Up to 578 conditions per place. [2022-11-21 16:35:52,038 INFO L137 encePairwiseOnDemand]: 228/233 looper letters, 46 selfloop transitions, 4 changer transitions 0/231 dead transitions. [2022-11-21 16:35:52,039 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 231 transitions, 710 flow [2022-11-21 16:35:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:35:52,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:35:52,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1215 transitions. [2022-11-21 16:35:52,046 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.869098712446352 [2022-11-21 16:35:52,046 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1215 transitions. [2022-11-21 16:35:52,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1215 transitions. [2022-11-21 16:35:52,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:52,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1215 transitions. [2022-11-21 16:35:52,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 202.5) internal successors, (1215), 6 states have internal predecessors, (1215), 0 states have call successors, (0), 0 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 16:35:52,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 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 16:35:52,059 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 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 16:35:52,059 INFO L175 Difference]: Start difference. First operand has 208 places, 226 transitions, 600 flow. Second operand 6 states and 1215 transitions. [2022-11-21 16:35:52,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 231 transitions, 710 flow [2022-11-21 16:35:52,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 231 transitions, 710 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:35:52,072 INFO L231 Difference]: Finished difference. Result has 217 places, 229 transitions, 629 flow [2022-11-21 16:35:52,077 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=629, PETRI_PLACES=217, PETRI_TRANSITIONS=229} [2022-11-21 16:35:52,079 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -14 predicate places. [2022-11-21 16:35:52,079 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 229 transitions, 629 flow [2022-11-21 16:35:52,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 199.8) internal successors, (999), 5 states have internal predecessors, (999), 0 states have call successors, (0), 0 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 16:35:52,080 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:52,080 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:52,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:35:52,081 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:35:52,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:52,081 INFO L85 PathProgramCache]: Analyzing trace with hash 732312171, now seen corresponding path program 1 times [2022-11-21 16:35:52,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:52,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127914000] [2022-11-21 16:35:52,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:52,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:52,631 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 16:35:52,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:52,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127914000] [2022-11-21 16:35:52,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127914000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:52,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:52,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:35:52,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086198856] [2022-11-21 16:35:52,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:52,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:35:52,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:52,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:35:52,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:35:52,635 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 233 [2022-11-21 16:35:52,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 229 transitions, 629 flow. Second operand has 6 states, 6 states have (on average 139.33333333333334) internal successors, (836), 6 states have internal predecessors, (836), 0 states have call successors, (0), 0 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 16:35:52,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:52,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 233 [2022-11-21 16:35:52,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:53,707 INFO L130 PetriNetUnfolder]: 1135/2475 cut-off events. [2022-11-21 16:35:53,707 INFO L131 PetriNetUnfolder]: For 843/849 co-relation queries the response was YES. [2022-11-21 16:35:53,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6056 conditions, 2475 events. 1135/2475 cut-off events. For 843/849 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 14767 event pairs, 741 based on Foata normal form. 0/2370 useless extension candidates. Maximal degree in co-relation 5953. Up to 1872 conditions per place. [2022-11-21 16:35:53,731 INFO L137 encePairwiseOnDemand]: 220/233 looper letters, 106 selfloop transitions, 30 changer transitions 0/258 dead transitions. [2022-11-21 16:35:53,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 258 transitions, 1007 flow [2022-11-21 16:35:53,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:35:53,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:35:53,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 919 transitions. [2022-11-21 16:35:53,735 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6573676680972819 [2022-11-21 16:35:53,735 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 919 transitions. [2022-11-21 16:35:53,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 919 transitions. [2022-11-21 16:35:53,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:53,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 919 transitions. [2022-11-21 16:35:53,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 153.16666666666666) internal successors, (919), 6 states have internal predecessors, (919), 0 states have call successors, (0), 0 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 16:35:53,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 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 16:35:53,742 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 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 16:35:53,743 INFO L175 Difference]: Start difference. First operand has 217 places, 229 transitions, 629 flow. Second operand 6 states and 919 transitions. [2022-11-21 16:35:53,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 258 transitions, 1007 flow [2022-11-21 16:35:53,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 258 transitions, 1006 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:35:53,753 INFO L231 Difference]: Finished difference. Result has 226 places, 258 transitions, 878 flow [2022-11-21 16:35:53,753 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=878, PETRI_PLACES=226, PETRI_TRANSITIONS=258} [2022-11-21 16:35:53,756 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -5 predicate places. [2022-11-21 16:35:53,756 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 258 transitions, 878 flow [2022-11-21 16:35:53,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.33333333333334) internal successors, (836), 6 states have internal predecessors, (836), 0 states have call successors, (0), 0 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 16:35:53,757 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:53,757 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:53,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:35:53,758 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:35:53,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:53,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1678995988, now seen corresponding path program 1 times [2022-11-21 16:35:53,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:53,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714132568] [2022-11-21 16:35:53,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:53,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:54,303 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 16:35:54,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:54,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714132568] [2022-11-21 16:35:54,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714132568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:54,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:54,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:35:54,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883580795] [2022-11-21 16:35:54,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:54,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:35:54,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:54,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:35:54,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:35:54,308 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 233 [2022-11-21 16:35:54,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 258 transitions, 878 flow. Second operand has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 0 states have call successors, (0), 0 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 16:35:54,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:54,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 233 [2022-11-21 16:35:54,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:55,245 INFO L130 PetriNetUnfolder]: 1126/2631 cut-off events. [2022-11-21 16:35:55,245 INFO L131 PetriNetUnfolder]: For 2174/2336 co-relation queries the response was YES. [2022-11-21 16:35:55,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7672 conditions, 2631 events. 1126/2631 cut-off events. For 2174/2336 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 16309 event pairs, 530 based on Foata normal form. 0/2534 useless extension candidates. Maximal degree in co-relation 5550. Up to 1779 conditions per place. [2022-11-21 16:35:55,270 INFO L137 encePairwiseOnDemand]: 222/233 looper letters, 154 selfloop transitions, 22 changer transitions 0/307 dead transitions. [2022-11-21 16:35:55,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 307 transitions, 1430 flow [2022-11-21 16:35:55,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:35:55,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:35:55,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 991 transitions. [2022-11-21 16:35:55,274 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7088698140200286 [2022-11-21 16:35:55,274 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 991 transitions. [2022-11-21 16:35:55,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 991 transitions. [2022-11-21 16:35:55,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:55,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 991 transitions. [2022-11-21 16:35:55,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 165.16666666666666) internal successors, (991), 6 states have internal predecessors, (991), 0 states have call successors, (0), 0 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 16:35:55,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 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 16:35:55,283 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 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 16:35:55,283 INFO L175 Difference]: Start difference. First operand has 226 places, 258 transitions, 878 flow. Second operand 6 states and 991 transitions. [2022-11-21 16:35:55,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 307 transitions, 1430 flow [2022-11-21 16:35:55,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 307 transitions, 1382 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-21 16:35:55,302 INFO L231 Difference]: Finished difference. Result has 236 places, 279 transitions, 1048 flow [2022-11-21 16:35:55,302 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1048, PETRI_PLACES=236, PETRI_TRANSITIONS=279} [2022-11-21 16:35:55,306 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 5 predicate places. [2022-11-21 16:35:55,306 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 279 transitions, 1048 flow [2022-11-21 16:35:55,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 0 states have call successors, (0), 0 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 16:35:55,307 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:55,307 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:55,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:35:55,308 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:35:55,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:55,308 INFO L85 PathProgramCache]: Analyzing trace with hash 2086448423, now seen corresponding path program 1 times [2022-11-21 16:35:55,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:55,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932531329] [2022-11-21 16:35:55,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:55,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:55,819 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 16:35:55,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:55,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932531329] [2022-11-21 16:35:55,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932531329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:55,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:55,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:35:55,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858255201] [2022-11-21 16:35:55,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:55,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:35:55,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:55,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:35:55,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:35:55,830 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 233 [2022-11-21 16:35:55,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 279 transitions, 1048 flow. Second operand has 6 states, 6 states have (on average 142.16666666666666) internal successors, (853), 6 states have internal predecessors, (853), 0 states have call successors, (0), 0 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 16:35:55,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:55,831 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 233 [2022-11-21 16:35:55,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:56,974 INFO L130 PetriNetUnfolder]: 1451/3262 cut-off events. [2022-11-21 16:35:56,974 INFO L131 PetriNetUnfolder]: For 3967/3993 co-relation queries the response was YES. [2022-11-21 16:35:56,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10588 conditions, 3262 events. 1451/3262 cut-off events. For 3967/3993 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 20416 event pairs, 516 based on Foata normal form. 0/3174 useless extension candidates. Maximal degree in co-relation 8939. Up to 2193 conditions per place. [2022-11-21 16:35:57,010 INFO L137 encePairwiseOnDemand]: 217/233 looper letters, 162 selfloop transitions, 27 changer transitions 0/314 dead transitions. [2022-11-21 16:35:57,010 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 314 transitions, 1630 flow [2022-11-21 16:35:57,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:35:57,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:35:57,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 936 transitions. [2022-11-21 16:35:57,014 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6695278969957081 [2022-11-21 16:35:57,014 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 936 transitions. [2022-11-21 16:35:57,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 936 transitions. [2022-11-21 16:35:57,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:57,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 936 transitions. [2022-11-21 16:35:57,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 0 states have call successors, (0), 0 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 16:35:57,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 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 16:35:57,022 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 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 16:35:57,022 INFO L175 Difference]: Start difference. First operand has 236 places, 279 transitions, 1048 flow. Second operand 6 states and 936 transitions. [2022-11-21 16:35:57,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 314 transitions, 1630 flow [2022-11-21 16:35:57,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 314 transitions, 1630 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:35:57,038 INFO L231 Difference]: Finished difference. Result has 245 places, 299 transitions, 1318 flow [2022-11-21 16:35:57,038 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=1046, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1318, PETRI_PLACES=245, PETRI_TRANSITIONS=299} [2022-11-21 16:35:57,039 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 14 predicate places. [2022-11-21 16:35:57,039 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 299 transitions, 1318 flow [2022-11-21 16:35:57,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.16666666666666) internal successors, (853), 6 states have internal predecessors, (853), 0 states have call successors, (0), 0 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 16:35:57,040 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:57,040 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:57,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:35:57,041 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:35:57,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:57,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1548913032, now seen corresponding path program 1 times [2022-11-21 16:35:57,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:57,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908800197] [2022-11-21 16:35:57,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:57,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:57,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:57,265 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 16:35:57,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:57,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908800197] [2022-11-21 16:35:57,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908800197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:57,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:57,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:35:57,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008721594] [2022-11-21 16:35:57,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:57,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:35:57,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:57,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:35:57,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:35:57,270 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 233 [2022-11-21 16:35:57,272 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 299 transitions, 1318 flow. Second operand has 5 states, 5 states have (on average 200.4) internal successors, (1002), 5 states have internal predecessors, (1002), 0 states have call successors, (0), 0 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 16:35:57,272 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:57,272 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 233 [2022-11-21 16:35:57,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:35:57,680 INFO L130 PetriNetUnfolder]: 300/1086 cut-off events. [2022-11-21 16:35:57,681 INFO L131 PetriNetUnfolder]: For 2110/2158 co-relation queries the response was YES. [2022-11-21 16:35:57,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3140 conditions, 1086 events. 300/1086 cut-off events. For 2110/2158 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5649 event pairs, 15 based on Foata normal form. 16/1082 useless extension candidates. Maximal degree in co-relation 3040. Up to 344 conditions per place. [2022-11-21 16:35:57,697 INFO L137 encePairwiseOnDemand]: 228/233 looper letters, 61 selfloop transitions, 4 changer transitions 1/243 dead transitions. [2022-11-21 16:35:57,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 243 transitions, 1104 flow [2022-11-21 16:35:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:35:57,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:35:57,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1238 transitions. [2022-11-21 16:35:57,701 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8855507868383404 [2022-11-21 16:35:57,701 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1238 transitions. [2022-11-21 16:35:57,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1238 transitions. [2022-11-21 16:35:57,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:35:57,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1238 transitions. [2022-11-21 16:35:57,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.33333333333334) internal successors, (1238), 6 states have internal predecessors, (1238), 0 states have call successors, (0), 0 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 16:35:57,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 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 16:35:57,710 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 233.0) internal successors, (1631), 7 states have internal predecessors, (1631), 0 states have call successors, (0), 0 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 16:35:57,710 INFO L175 Difference]: Start difference. First operand has 245 places, 299 transitions, 1318 flow. Second operand 6 states and 1238 transitions. [2022-11-21 16:35:57,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 243 transitions, 1104 flow [2022-11-21 16:35:57,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 243 transitions, 1032 flow, removed 3 selfloop flow, removed 24 redundant places. [2022-11-21 16:35:57,720 INFO L231 Difference]: Finished difference. Result has 224 places, 217 transitions, 701 flow [2022-11-21 16:35:57,721 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=701, PETRI_PLACES=224, PETRI_TRANSITIONS=217} [2022-11-21 16:35:57,723 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, -7 predicate places. [2022-11-21 16:35:57,723 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 217 transitions, 701 flow [2022-11-21 16:35:57,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 200.4) internal successors, (1002), 5 states have internal predecessors, (1002), 0 states have call successors, (0), 0 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 16:35:57,724 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:35:57,725 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:35:57,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:35:57,725 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:35:57,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:35:57,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1384163158, now seen corresponding path program 1 times [2022-11-21 16:35:57,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:35:57,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044426089] [2022-11-21 16:35:57,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:35:57,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:35:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:35:59,948 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 16:35:59,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:35:59,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044426089] [2022-11-21 16:35:59,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044426089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:35:59,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:35:59,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:35:59,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356534767] [2022-11-21 16:35:59,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:35:59,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:35:59,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:35:59,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:35:59,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:35:59,952 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:35:59,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 217 transitions, 701 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:35:59,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:35:59,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:35:59,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:36:04,789 INFO L130 PetriNetUnfolder]: 1004/2176 cut-off events. [2022-11-21 16:36:04,790 INFO L131 PetriNetUnfolder]: For 3363/3363 co-relation queries the response was YES. [2022-11-21 16:36:04,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7319 conditions, 2176 events. 1004/2176 cut-off events. For 3363/3363 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 11562 event pairs, 326 based on Foata normal form. 8/2143 useless extension candidates. Maximal degree in co-relation 7068. Up to 1022 conditions per place. [2022-11-21 16:36:04,808 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 207 selfloop transitions, 106 changer transitions 0/420 dead transitions. [2022-11-21 16:36:04,808 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 420 transitions, 2327 flow [2022-11-21 16:36:04,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-21 16:36:04,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-21 16:36:04,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3745 transitions. [2022-11-21 16:36:04,825 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5740343347639485 [2022-11-21 16:36:04,825 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3745 transitions. [2022-11-21 16:36:04,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3745 transitions. [2022-11-21 16:36:04,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:36:04,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3745 transitions. [2022-11-21 16:36:04,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 133.75) internal successors, (3745), 28 states have internal predecessors, (3745), 0 states have call successors, (0), 0 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 16:36:04,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 233.0) internal successors, (6757), 29 states have internal predecessors, (6757), 0 states have call successors, (0), 0 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 16:36:04,852 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 233.0) internal successors, (6757), 29 states have internal predecessors, (6757), 0 states have call successors, (0), 0 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 16:36:04,852 INFO L175 Difference]: Start difference. First operand has 224 places, 217 transitions, 701 flow. Second operand 28 states and 3745 transitions. [2022-11-21 16:36:04,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 420 transitions, 2327 flow [2022-11-21 16:36:04,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 420 transitions, 2299 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-11-21 16:36:04,875 INFO L231 Difference]: Finished difference. Result has 261 places, 299 transitions, 1675 flow [2022-11-21 16:36:04,876 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1675, PETRI_PLACES=261, PETRI_TRANSITIONS=299} [2022-11-21 16:36:04,876 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 30 predicate places. [2022-11-21 16:36:04,877 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 299 transitions, 1675 flow [2022-11-21 16:36:04,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:04,878 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:36:04,878 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:36:04,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:36:04,879 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:36:04,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:36:04,879 INFO L85 PathProgramCache]: Analyzing trace with hash -691633080, now seen corresponding path program 2 times [2022-11-21 16:36:04,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:36:04,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409781669] [2022-11-21 16:36:04,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:36:04,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:36:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:07,606 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 16:36:07,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:36:07,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409781669] [2022-11-21 16:36:07,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409781669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:36:07,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:36:07,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:36:07,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514559885] [2022-11-21 16:36:07,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:36:07,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:36:07,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:36:07,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:36:07,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:36:07,610 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:36:07,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 299 transitions, 1675 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:07,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:36:07,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:36:07,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:36:10,155 INFO L130 PetriNetUnfolder]: 1092/2226 cut-off events. [2022-11-21 16:36:10,155 INFO L131 PetriNetUnfolder]: For 8035/8041 co-relation queries the response was YES. [2022-11-21 16:36:10,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10034 conditions, 2226 events. 1092/2226 cut-off events. For 8035/8041 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 11861 event pairs, 59 based on Foata normal form. 8/2207 useless extension candidates. Maximal degree in co-relation 9751. Up to 868 conditions per place. [2022-11-21 16:36:10,181 INFO L137 encePairwiseOnDemand]: 214/233 looper letters, 331 selfloop transitions, 96 changer transitions 0/534 dead transitions. [2022-11-21 16:36:10,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 534 transitions, 4243 flow [2022-11-21 16:36:10,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:36:10,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:36:10,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2711 transitions. [2022-11-21 16:36:10,189 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5817596566523605 [2022-11-21 16:36:10,189 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2711 transitions. [2022-11-21 16:36:10,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2711 transitions. [2022-11-21 16:36:10,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:36:10,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2711 transitions. [2022-11-21 16:36:10,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.55) internal successors, (2711), 20 states have internal predecessors, (2711), 0 states have call successors, (0), 0 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 16:36:10,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:36:10,217 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:36:10,217 INFO L175 Difference]: Start difference. First operand has 261 places, 299 transitions, 1675 flow. Second operand 20 states and 2711 transitions. [2022-11-21 16:36:10,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 534 transitions, 4243 flow [2022-11-21 16:36:10,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 534 transitions, 4202 flow, removed 15 selfloop flow, removed 6 redundant places. [2022-11-21 16:36:10,268 INFO L231 Difference]: Finished difference. Result has 283 places, 362 transitions, 2691 flow [2022-11-21 16:36:10,270 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=1640, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2691, PETRI_PLACES=283, PETRI_TRANSITIONS=362} [2022-11-21 16:36:10,271 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 52 predicate places. [2022-11-21 16:36:10,271 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 362 transitions, 2691 flow [2022-11-21 16:36:10,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:10,272 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:36:10,272 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:36:10,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:36:10,272 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:36:10,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:36:10,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1881152184, now seen corresponding path program 3 times [2022-11-21 16:36:10,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:36:10,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128618020] [2022-11-21 16:36:10,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:36:10,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:36:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:12,134 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 16:36:12,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:36:12,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128618020] [2022-11-21 16:36:12,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128618020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:36:12,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:36:12,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:36:12,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804196751] [2022-11-21 16:36:12,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:36:12,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:36:12,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:36:12,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:36:12,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:36:12,138 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:36:12,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 362 transitions, 2691 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:12,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:36:12,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:36:12,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:36:15,213 INFO L130 PetriNetUnfolder]: 1176/2386 cut-off events. [2022-11-21 16:36:15,213 INFO L131 PetriNetUnfolder]: For 15842/15848 co-relation queries the response was YES. [2022-11-21 16:36:15,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12939 conditions, 2386 events. 1176/2386 cut-off events. For 15842/15848 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 12718 event pairs, 106 based on Foata normal form. 8/2358 useless extension candidates. Maximal degree in co-relation 12641. Up to 1407 conditions per place. [2022-11-21 16:36:15,239 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 307 selfloop transitions, 112 changer transitions 0/526 dead transitions. [2022-11-21 16:36:15,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 526 transitions, 4834 flow [2022-11-21 16:36:15,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 16:36:15,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-21 16:36:15,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2327 transitions. [2022-11-21 16:36:15,245 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5874779096187831 [2022-11-21 16:36:15,246 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2327 transitions. [2022-11-21 16:36:15,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2327 transitions. [2022-11-21 16:36:15,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:36:15,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2327 transitions. [2022-11-21 16:36:15,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 136.88235294117646) internal successors, (2327), 17 states have internal predecessors, (2327), 0 states have call successors, (0), 0 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 16:36:15,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 233.0) internal successors, (4194), 18 states have internal predecessors, (4194), 0 states have call successors, (0), 0 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 16:36:15,260 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 233.0) internal successors, (4194), 18 states have internal predecessors, (4194), 0 states have call successors, (0), 0 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 16:36:15,261 INFO L175 Difference]: Start difference. First operand has 283 places, 362 transitions, 2691 flow. Second operand 17 states and 2327 transitions. [2022-11-21 16:36:15,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 526 transitions, 4834 flow [2022-11-21 16:36:15,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 526 transitions, 4717 flow, removed 27 selfloop flow, removed 9 redundant places. [2022-11-21 16:36:15,339 INFO L231 Difference]: Finished difference. Result has 298 places, 416 transitions, 3892 flow [2022-11-21 16:36:15,340 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=2604, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3892, PETRI_PLACES=298, PETRI_TRANSITIONS=416} [2022-11-21 16:36:15,340 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 67 predicate places. [2022-11-21 16:36:15,340 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 416 transitions, 3892 flow [2022-11-21 16:36:15,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:15,341 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:36:15,341 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:36:15,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:36:15,342 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:36:15,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:36:15,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1546345088, now seen corresponding path program 4 times [2022-11-21 16:36:15,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:36:15,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413621168] [2022-11-21 16:36:15,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:36:15,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:36:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:17,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:36:17,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:36:17,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413621168] [2022-11-21 16:36:17,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413621168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:36:17,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:36:17,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:36:17,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622163893] [2022-11-21 16:36:17,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:36:17,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:36:17,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:36:17,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:36:17,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:36:17,735 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:36:17,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 416 transitions, 3892 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:17,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:36:17,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:36:17,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:36:20,598 INFO L130 PetriNetUnfolder]: 1398/2828 cut-off events. [2022-11-21 16:36:20,599 INFO L131 PetriNetUnfolder]: For 26793/26853 co-relation queries the response was YES. [2022-11-21 16:36:20,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17188 conditions, 2828 events. 1398/2828 cut-off events. For 26793/26853 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 15696 event pairs, 222 based on Foata normal form. 8/2787 useless extension candidates. Maximal degree in co-relation 16877. Up to 1238 conditions per place. [2022-11-21 16:36:20,630 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 365 selfloop transitions, 170 changer transitions 0/642 dead transitions. [2022-11-21 16:36:20,630 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 642 transitions, 7486 flow [2022-11-21 16:36:20,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:36:20,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:36:20,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2717 transitions. [2022-11-21 16:36:20,636 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5830472103004292 [2022-11-21 16:36:20,636 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2717 transitions. [2022-11-21 16:36:20,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2717 transitions. [2022-11-21 16:36:20,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:36:20,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2717 transitions. [2022-11-21 16:36:20,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.85) internal successors, (2717), 20 states have internal predecessors, (2717), 0 states have call successors, (0), 0 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 16:36:20,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:36:20,651 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:36:20,651 INFO L175 Difference]: Start difference. First operand has 298 places, 416 transitions, 3892 flow. Second operand 20 states and 2717 transitions. [2022-11-21 16:36:20,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 642 transitions, 7486 flow [2022-11-21 16:36:20,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 642 transitions, 7319 flow, removed 68 selfloop flow, removed 9 redundant places. [2022-11-21 16:36:20,772 INFO L231 Difference]: Finished difference. Result has 315 places, 489 transitions, 5769 flow [2022-11-21 16:36:20,773 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=3751, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5769, PETRI_PLACES=315, PETRI_TRANSITIONS=489} [2022-11-21 16:36:20,774 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 84 predicate places. [2022-11-21 16:36:20,774 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 489 transitions, 5769 flow [2022-11-21 16:36:20,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:20,775 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:36:20,775 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:36:20,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:36:20,776 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:36:20,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:36:20,776 INFO L85 PathProgramCache]: Analyzing trace with hash 919703916, now seen corresponding path program 5 times [2022-11-21 16:36:20,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:36:20,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631247544] [2022-11-21 16:36:20,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:36:20,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:36:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:22,535 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 16:36:22,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:36:22,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631247544] [2022-11-21 16:36:22,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631247544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:36:22,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:36:22,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:36:22,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264165804] [2022-11-21 16:36:22,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:36:22,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:36:22,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:36:22,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:36:22,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:36:22,539 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:36:22,541 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 489 transitions, 5769 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:22,541 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:36:22,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:36:22,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:36:25,470 INFO L130 PetriNetUnfolder]: 1524/2998 cut-off events. [2022-11-21 16:36:25,471 INFO L131 PetriNetUnfolder]: For 43050/43056 co-relation queries the response was YES. [2022-11-21 16:36:25,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21341 conditions, 2998 events. 1524/2998 cut-off events. For 43050/43056 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 16945 event pairs, 100 based on Foata normal form. 8/2969 useless extension candidates. Maximal degree in co-relation 21024. Up to 1759 conditions per place. [2022-11-21 16:36:25,516 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 346 selfloop transitions, 200 changer transitions 0/653 dead transitions. [2022-11-21 16:36:25,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 653 transitions, 8561 flow [2022-11-21 16:36:25,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-21 16:36:25,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-21 16:36:25,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2460 transitions. [2022-11-21 16:36:25,521 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.586552217453505 [2022-11-21 16:36:25,521 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2460 transitions. [2022-11-21 16:36:25,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2460 transitions. [2022-11-21 16:36:25,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:36:25,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2460 transitions. [2022-11-21 16:36:25,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.66666666666666) internal successors, (2460), 18 states have internal predecessors, (2460), 0 states have call successors, (0), 0 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 16:36:25,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 0 states have call successors, (0), 0 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 16:36:25,534 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 0 states have call successors, (0), 0 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 16:36:25,534 INFO L175 Difference]: Start difference. First operand has 315 places, 489 transitions, 5769 flow. Second operand 18 states and 2460 transitions. [2022-11-21 16:36:25,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 653 transitions, 8561 flow [2022-11-21 16:36:25,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 653 transitions, 8234 flow, removed 107 selfloop flow, removed 12 redundant places. [2022-11-21 16:36:25,746 INFO L231 Difference]: Finished difference. Result has 325 places, 533 transitions, 7181 flow [2022-11-21 16:36:25,747 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=5497, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=489, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7181, PETRI_PLACES=325, PETRI_TRANSITIONS=533} [2022-11-21 16:36:25,748 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 94 predicate places. [2022-11-21 16:36:25,748 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 533 transitions, 7181 flow [2022-11-21 16:36:25,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:25,749 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:36:25,750 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:36:25,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:36:25,750 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:36:25,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:36:25,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1419346614, now seen corresponding path program 6 times [2022-11-21 16:36:25,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:36:25,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909059527] [2022-11-21 16:36:25,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:36:25,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:36:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:27,564 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 16:36:27,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:36:27,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909059527] [2022-11-21 16:36:27,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909059527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:36:27,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:36:27,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:36:27,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366508208] [2022-11-21 16:36:27,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:36:27,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:36:27,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:36:27,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:36:27,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:36:27,570 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:36:27,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 533 transitions, 7181 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:27,572 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:36:27,572 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:36:27,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:36:30,304 INFO L130 PetriNetUnfolder]: 1581/3163 cut-off events. [2022-11-21 16:36:30,304 INFO L131 PetriNetUnfolder]: For 53440/53505 co-relation queries the response was YES. [2022-11-21 16:36:30,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23379 conditions, 3163 events. 1581/3163 cut-off events. For 53440/53505 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 18011 event pairs, 233 based on Foata normal form. 8/3123 useless extension candidates. Maximal degree in co-relation 23057. Up to 1472 conditions per place. [2022-11-21 16:36:30,340 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 406 selfloop transitions, 207 changer transitions 0/720 dead transitions. [2022-11-21 16:36:30,340 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 720 transitions, 10685 flow [2022-11-21 16:36:30,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:36:30,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:36:30,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2716 transitions. [2022-11-21 16:36:30,345 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.582832618025751 [2022-11-21 16:36:30,346 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2716 transitions. [2022-11-21 16:36:30,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2716 transitions. [2022-11-21 16:36:30,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:36:30,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2716 transitions. [2022-11-21 16:36:30,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.8) internal successors, (2716), 20 states have internal predecessors, (2716), 0 states have call successors, (0), 0 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 16:36:30,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:36:30,360 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:36:30,360 INFO L175 Difference]: Start difference. First operand has 325 places, 533 transitions, 7181 flow. Second operand 20 states and 2716 transitions. [2022-11-21 16:36:30,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 720 transitions, 10685 flow [2022-11-21 16:36:30,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 720 transitions, 10401 flow, removed 78 selfloop flow, removed 11 redundant places. [2022-11-21 16:36:30,563 INFO L231 Difference]: Finished difference. Result has 339 places, 565 transitions, 8248 flow [2022-11-21 16:36:30,564 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=6966, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8248, PETRI_PLACES=339, PETRI_TRANSITIONS=565} [2022-11-21 16:36:30,565 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 108 predicate places. [2022-11-21 16:36:30,565 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 565 transitions, 8248 flow [2022-11-21 16:36:30,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:30,566 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:36:30,566 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:36:30,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:36:30,567 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:36:30,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:36:30,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1617657770, now seen corresponding path program 7 times [2022-11-21 16:36:30,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:36:30,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170133106] [2022-11-21 16:36:30,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:36:30,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:36:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:32,146 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 16:36:32,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:36:32,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170133106] [2022-11-21 16:36:32,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170133106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:36:32,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:36:32,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:36:32,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194745051] [2022-11-21 16:36:32,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:36:32,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:36:32,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:36:32,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:36:32,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:36:32,151 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:36:32,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 565 transitions, 8248 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:32,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:36:32,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:36:32,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:36:35,225 INFO L130 PetriNetUnfolder]: 1759/3491 cut-off events. [2022-11-21 16:36:35,225 INFO L131 PetriNetUnfolder]: For 65212/65236 co-relation queries the response was YES. [2022-11-21 16:36:35,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28124 conditions, 3491 events. 1759/3491 cut-off events. For 65212/65236 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 20456 event pairs, 368 based on Foata normal form. 8/3455 useless extension candidates. Maximal degree in co-relation 27796. Up to 2015 conditions per place. [2022-11-21 16:36:35,268 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 378 selfloop transitions, 270 changer transitions 0/755 dead transitions. [2022-11-21 16:36:35,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 755 transitions, 12222 flow [2022-11-21 16:36:35,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-21 16:36:35,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-21 16:36:35,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2460 transitions. [2022-11-21 16:36:35,272 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.586552217453505 [2022-11-21 16:36:35,273 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2460 transitions. [2022-11-21 16:36:35,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2460 transitions. [2022-11-21 16:36:35,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:36:35,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2460 transitions. [2022-11-21 16:36:35,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.66666666666666) internal successors, (2460), 18 states have internal predecessors, (2460), 0 states have call successors, (0), 0 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 16:36:35,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 0 states have call successors, (0), 0 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 16:36:35,285 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 0 states have call successors, (0), 0 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 16:36:35,285 INFO L175 Difference]: Start difference. First operand has 339 places, 565 transitions, 8248 flow. Second operand 18 states and 2460 transitions. [2022-11-21 16:36:35,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 755 transitions, 12222 flow [2022-11-21 16:36:35,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 755 transitions, 12036 flow, removed 33 selfloop flow, removed 12 redundant places. [2022-11-21 16:36:35,678 INFO L231 Difference]: Finished difference. Result has 351 places, 645 transitions, 11171 flow [2022-11-21 16:36:35,679 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=8080, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=11171, PETRI_PLACES=351, PETRI_TRANSITIONS=645} [2022-11-21 16:36:35,681 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 120 predicate places. [2022-11-21 16:36:35,681 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 645 transitions, 11171 flow [2022-11-21 16:36:35,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:35,682 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:36:35,682 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:36:35,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:36:35,682 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:36:35,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:36:35,683 INFO L85 PathProgramCache]: Analyzing trace with hash -666726578, now seen corresponding path program 8 times [2022-11-21 16:36:35,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:36:35,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741007778] [2022-11-21 16:36:35,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:36:35,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:36:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:37,230 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 16:36:37,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:36:37,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741007778] [2022-11-21 16:36:37,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741007778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:36:37,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:36:37,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:36:37,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910888073] [2022-11-21 16:36:37,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:36:37,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:36:37,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:36:37,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:36:37,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:36:37,235 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:36:37,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 645 transitions, 11171 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:37,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:36:37,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:36:37,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:36:40,087 INFO L130 PetriNetUnfolder]: 1795/3577 cut-off events. [2022-11-21 16:36:40,087 INFO L131 PetriNetUnfolder]: For 83303/83339 co-relation queries the response was YES. [2022-11-21 16:36:40,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30827 conditions, 3577 events. 1795/3577 cut-off events. For 83303/83339 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 21131 event pairs, 202 based on Foata normal form. 8/3547 useless extension candidates. Maximal degree in co-relation 30492. Up to 1770 conditions per place. [2022-11-21 16:36:40,127 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 448 selfloop transitions, 262 changer transitions 0/817 dead transitions. [2022-11-21 16:36:40,127 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 817 transitions, 14907 flow [2022-11-21 16:36:40,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-21 16:36:40,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-21 16:36:40,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2583 transitions. [2022-11-21 16:36:40,132 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5834651005195391 [2022-11-21 16:36:40,132 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2583 transitions. [2022-11-21 16:36:40,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2583 transitions. [2022-11-21 16:36:40,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:36:40,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2583 transitions. [2022-11-21 16:36:40,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 135.94736842105263) internal successors, (2583), 19 states have internal predecessors, (2583), 0 states have call successors, (0), 0 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 16:36:40,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:36:40,145 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:36:40,145 INFO L175 Difference]: Start difference. First operand has 351 places, 645 transitions, 11171 flow. Second operand 19 states and 2583 transitions. [2022-11-21 16:36:40,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 817 transitions, 14907 flow [2022-11-21 16:36:40,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 817 transitions, 14485 flow, removed 185 selfloop flow, removed 9 redundant places. [2022-11-21 16:36:40,584 INFO L231 Difference]: Finished difference. Result has 365 places, 664 transitions, 12314 flow [2022-11-21 16:36:40,585 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=10862, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=12314, PETRI_PLACES=365, PETRI_TRANSITIONS=664} [2022-11-21 16:36:40,586 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 134 predicate places. [2022-11-21 16:36:40,586 INFO L495 AbstractCegarLoop]: Abstraction has has 365 places, 664 transitions, 12314 flow [2022-11-21 16:36:40,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:40,587 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:36:40,587 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:36:40,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 16:36:40,587 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:36:40,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:36:40,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1349569800, now seen corresponding path program 9 times [2022-11-21 16:36:40,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:36:40,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825845170] [2022-11-21 16:36:40,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:36:40,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:36:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:42,119 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 16:36:42,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:36:42,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825845170] [2022-11-21 16:36:42,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825845170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:36:42,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:36:42,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:36:42,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373768590] [2022-11-21 16:36:42,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:36:42,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:36:42,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:36:42,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:36:42,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:36:42,123 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:36:42,125 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 664 transitions, 12314 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:42,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:36:42,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:36:42,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:36:45,027 INFO L130 PetriNetUnfolder]: 1986/3866 cut-off events. [2022-11-21 16:36:45,028 INFO L131 PetriNetUnfolder]: For 103025/103049 co-relation queries the response was YES. [2022-11-21 16:36:45,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35943 conditions, 3866 events. 1986/3866 cut-off events. For 103025/103049 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 23119 event pairs, 176 based on Foata normal form. 8/3837 useless extension candidates. Maximal degree in co-relation 35603. Up to 2366 conditions per place. [2022-11-21 16:36:45,071 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 456 selfloop transitions, 293 changer transitions 0/856 dead transitions. [2022-11-21 16:36:45,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 856 transitions, 16800 flow [2022-11-21 16:36:45,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-21 16:36:45,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-21 16:36:45,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2456 transitions. [2022-11-21 16:36:45,075 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5855984740104911 [2022-11-21 16:36:45,076 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2456 transitions. [2022-11-21 16:36:45,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2456 transitions. [2022-11-21 16:36:45,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:36:45,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2456 transitions. [2022-11-21 16:36:45,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.44444444444446) internal successors, (2456), 18 states have internal predecessors, (2456), 0 states have call successors, (0), 0 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 16:36:45,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 0 states have call successors, (0), 0 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 16:36:45,087 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 0 states have call successors, (0), 0 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 16:36:45,087 INFO L175 Difference]: Start difference. First operand has 365 places, 664 transitions, 12314 flow. Second operand 18 states and 2456 transitions. [2022-11-21 16:36:45,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 856 transitions, 16800 flow [2022-11-21 16:36:45,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 856 transitions, 16668 flow, removed 4 selfloop flow, removed 12 redundant places. [2022-11-21 16:36:45,551 INFO L231 Difference]: Finished difference. Result has 377 places, 730 transitions, 15362 flow [2022-11-21 16:36:45,552 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=12188, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=664, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=231, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=15362, PETRI_PLACES=377, PETRI_TRANSITIONS=730} [2022-11-21 16:36:45,552 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 146 predicate places. [2022-11-21 16:36:45,552 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 730 transitions, 15362 flow [2022-11-21 16:36:45,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:45,553 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:36:45,553 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:36:45,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 16:36:45,554 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:36:45,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:36:45,554 INFO L85 PathProgramCache]: Analyzing trace with hash -269432630, now seen corresponding path program 10 times [2022-11-21 16:36:45,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:36:45,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173382663] [2022-11-21 16:36:45,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:36:45,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:36:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:47,540 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 16:36:47,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:36:47,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173382663] [2022-11-21 16:36:47,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173382663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:36:47,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:36:47,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:36:47,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687417752] [2022-11-21 16:36:47,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:36:47,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:36:47,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:36:47,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:36:47,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:36:47,544 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:36:47,546 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 730 transitions, 15362 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:47,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:36:47,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:36:47,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:36:51,455 INFO L130 PetriNetUnfolder]: 2164/4150 cut-off events. [2022-11-21 16:36:51,455 INFO L131 PetriNetUnfolder]: For 137280/137286 co-relation queries the response was YES. [2022-11-21 16:36:51,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41996 conditions, 4150 events. 2164/4150 cut-off events. For 137280/137286 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 25263 event pairs, 140 based on Foata normal form. 8/4121 useless extension candidates. Maximal degree in co-relation 41649. Up to 2221 conditions per place. [2022-11-21 16:36:51,501 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 421 selfloop transitions, 425 changer transitions 0/953 dead transitions. [2022-11-21 16:36:51,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 953 transitions, 21070 flow [2022-11-21 16:36:51,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:36:51,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:36:51,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2716 transitions. [2022-11-21 16:36:51,507 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.582832618025751 [2022-11-21 16:36:51,507 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2716 transitions. [2022-11-21 16:36:51,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2716 transitions. [2022-11-21 16:36:51,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:36:51,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2716 transitions. [2022-11-21 16:36:51,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.8) internal successors, (2716), 20 states have internal predecessors, (2716), 0 states have call successors, (0), 0 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 16:36:51,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:36:51,519 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:36:51,519 INFO L175 Difference]: Start difference. First operand has 377 places, 730 transitions, 15362 flow. Second operand 20 states and 2716 transitions. [2022-11-21 16:36:51,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 953 transitions, 21070 flow [2022-11-21 16:36:52,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 953 transitions, 20901 flow, removed 56 selfloop flow, removed 10 redundant places. [2022-11-21 16:36:52,102 INFO L231 Difference]: Finished difference. Result has 396 places, 833 transitions, 19753 flow [2022-11-21 16:36:52,103 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=15220, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=730, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=19753, PETRI_PLACES=396, PETRI_TRANSITIONS=833} [2022-11-21 16:36:52,103 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 165 predicate places. [2022-11-21 16:36:52,103 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 833 transitions, 19753 flow [2022-11-21 16:36:52,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:52,104 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:36:52,104 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:36:52,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 16:36:52,104 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:36:52,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:36:52,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1312992744, now seen corresponding path program 11 times [2022-11-21 16:36:52,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:36:52,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711276268] [2022-11-21 16:36:52,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:36:52,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:36:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:36:53,794 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 16:36:53,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:36:53,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711276268] [2022-11-21 16:36:53,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711276268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:36:53,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:36:53,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:36:53,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868252966] [2022-11-21 16:36:53,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:36:53,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:36:53,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:36:53,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:36:53,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:36:53,798 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:36:53,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 833 transitions, 19753 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:53,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:36:53,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:36:53,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:36:57,872 INFO L130 PetriNetUnfolder]: 2165/4247 cut-off events. [2022-11-21 16:36:57,872 INFO L131 PetriNetUnfolder]: For 155145/155181 co-relation queries the response was YES. [2022-11-21 16:36:57,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45115 conditions, 4247 events. 2165/4247 cut-off events. For 155145/155181 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 26333 event pairs, 204 based on Foata normal form. 8/4217 useless extension candidates. Maximal degree in co-relation 44758. Up to 2167 conditions per place. [2022-11-21 16:36:57,928 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 541 selfloop transitions, 337 changer transitions 0/985 dead transitions. [2022-11-21 16:36:57,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 985 transitions, 23316 flow [2022-11-21 16:36:57,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:36:57,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:36:57,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2713 transitions. [2022-11-21 16:36:57,932 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5821888412017168 [2022-11-21 16:36:57,932 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2713 transitions. [2022-11-21 16:36:57,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2713 transitions. [2022-11-21 16:36:57,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:36:57,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2713 transitions. [2022-11-21 16:36:57,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.65) internal successors, (2713), 20 states have internal predecessors, (2713), 0 states have call successors, (0), 0 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 16:36:57,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:36:57,942 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:36:57,943 INFO L175 Difference]: Start difference. First operand has 396 places, 833 transitions, 19753 flow. Second operand 20 states and 2713 transitions. [2022-11-21 16:36:57,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 985 transitions, 23316 flow [2022-11-21 16:36:58,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 985 transitions, 22728 flow, removed 281 selfloop flow, removed 8 redundant places. [2022-11-21 16:36:58,923 INFO L231 Difference]: Finished difference. Result has 411 places, 851 transitions, 20661 flow [2022-11-21 16:36:58,923 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=19185, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=833, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=322, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=503, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=20661, PETRI_PLACES=411, PETRI_TRANSITIONS=851} [2022-11-21 16:36:58,924 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 180 predicate places. [2022-11-21 16:36:58,924 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 851 transitions, 20661 flow [2022-11-21 16:36:58,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:36:58,925 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:36:58,925 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:36:58,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 16:36:58,925 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:36:58,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:36:58,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1133853688, now seen corresponding path program 12 times [2022-11-21 16:36:58,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:36:58,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531762194] [2022-11-21 16:36:58,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:36:58,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:36:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:37:00,447 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 16:37:00,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:37:00,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531762194] [2022-11-21 16:37:00,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531762194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:37:00,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:37:00,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:37:00,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809645883] [2022-11-21 16:37:00,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:37:00,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:37:00,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:37:00,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:37:00,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:37:00,451 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:37:00,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 851 transitions, 20661 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:37:00,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:37:00,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:37:00,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:37:04,570 INFO L130 PetriNetUnfolder]: 2248/4382 cut-off events. [2022-11-21 16:37:04,570 INFO L131 PetriNetUnfolder]: For 168790/168831 co-relation queries the response was YES. [2022-11-21 16:37:04,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48010 conditions, 4382 events. 2248/4382 cut-off events. For 168790/168831 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 27386 event pairs, 365 based on Foata normal form. 10/4347 useless extension candidates. Maximal degree in co-relation 47649. Up to 2681 conditions per place. [2022-11-21 16:37:04,642 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 543 selfloop transitions, 358 changer transitions 0/1008 dead transitions. [2022-11-21 16:37:04,642 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 1008 transitions, 24679 flow [2022-11-21 16:37:04,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:37:04,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:37:04,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2714 transitions. [2022-11-21 16:37:04,646 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5824034334763949 [2022-11-21 16:37:04,646 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2714 transitions. [2022-11-21 16:37:04,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2714 transitions. [2022-11-21 16:37:04,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:37:04,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2714 transitions. [2022-11-21 16:37:04,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.7) internal successors, (2714), 20 states have internal predecessors, (2714), 0 states have call successors, (0), 0 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 16:37:04,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:37:04,656 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:37:04,656 INFO L175 Difference]: Start difference. First operand has 411 places, 851 transitions, 20661 flow. Second operand 20 states and 2714 transitions. [2022-11-21 16:37:04,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 1008 transitions, 24679 flow [2022-11-21 16:37:05,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 1008 transitions, 24448 flow, removed 35 selfloop flow, removed 14 redundant places. [2022-11-21 16:37:05,528 INFO L231 Difference]: Finished difference. Result has 423 places, 890 transitions, 23211 flow [2022-11-21 16:37:05,529 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=20433, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=851, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=320, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=23211, PETRI_PLACES=423, PETRI_TRANSITIONS=890} [2022-11-21 16:37:05,529 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 192 predicate places. [2022-11-21 16:37:05,529 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 890 transitions, 23211 flow [2022-11-21 16:37:05,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:37:05,530 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:37:05,530 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:37:05,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 16:37:05,531 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:37:05,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:37:05,532 INFO L85 PathProgramCache]: Analyzing trace with hash -331762210, now seen corresponding path program 13 times [2022-11-21 16:37:05,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:37:05,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257314370] [2022-11-21 16:37:05,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:37:05,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:37:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:37:07,460 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 16:37:07,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:37:07,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257314370] [2022-11-21 16:37:07,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257314370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:37:07,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:37:07,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:37:07,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553343376] [2022-11-21 16:37:07,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:37:07,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:37:07,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:37:07,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:37:07,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:37:07,465 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:37:07,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 890 transitions, 23211 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:37:07,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:37:07,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:37:07,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:37:11,638 INFO L130 PetriNetUnfolder]: 2388/4586 cut-off events. [2022-11-21 16:37:11,638 INFO L131 PetriNetUnfolder]: For 208893/208917 co-relation queries the response was YES. [2022-11-21 16:37:11,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53689 conditions, 4586 events. 2388/4586 cut-off events. For 208893/208917 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 28714 event pairs, 171 based on Foata normal form. 8/4556 useless extension candidates. Maximal degree in co-relation 53321. Up to 2737 conditions per place. [2022-11-21 16:37:11,711 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 560 selfloop transitions, 404 changer transitions 0/1071 dead transitions. [2022-11-21 16:37:11,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 1071 transitions, 28465 flow [2022-11-21 16:37:11,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:37:11,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:37:11,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2716 transitions. [2022-11-21 16:37:11,723 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.582832618025751 [2022-11-21 16:37:11,723 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2716 transitions. [2022-11-21 16:37:11,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2716 transitions. [2022-11-21 16:37:11,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:37:11,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2716 transitions. [2022-11-21 16:37:11,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.8) internal successors, (2716), 20 states have internal predecessors, (2716), 0 states have call successors, (0), 0 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 16:37:11,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:37:11,731 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:37:11,732 INFO L175 Difference]: Start difference. First operand has 423 places, 890 transitions, 23211 flow. Second operand 20 states and 2716 transitions. [2022-11-21 16:37:11,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 1071 transitions, 28465 flow [2022-11-21 16:37:13,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 1071 transitions, 28115 flow, removed 116 selfloop flow, removed 12 redundant places. [2022-11-21 16:37:13,077 INFO L231 Difference]: Finished difference. Result has 438 places, 954 transitions, 26603 flow [2022-11-21 16:37:13,078 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=22879, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=890, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=346, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=525, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=26603, PETRI_PLACES=438, PETRI_TRANSITIONS=954} [2022-11-21 16:37:13,079 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 207 predicate places. [2022-11-21 16:37:13,079 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 954 transitions, 26603 flow [2022-11-21 16:37:13,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:37:13,080 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:37:13,080 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:37:13,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-21 16:37:13,080 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:37:13,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:37:13,081 INFO L85 PathProgramCache]: Analyzing trace with hash 2063315680, now seen corresponding path program 14 times [2022-11-21 16:37:13,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:37:13,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015272645] [2022-11-21 16:37:13,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:37:13,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:37:13,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:37:14,394 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 16:37:14,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:37:14,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015272645] [2022-11-21 16:37:14,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015272645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:37:14,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:37:14,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:37:14,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697777290] [2022-11-21 16:37:14,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:37:14,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:37:14,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:37:14,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:37:14,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:37:14,398 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:37:14,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 954 transitions, 26603 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:37:14,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:37:14,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:37:14,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:37:19,055 INFO L130 PetriNetUnfolder]: 2481/4741 cut-off events. [2022-11-21 16:37:19,055 INFO L131 PetriNetUnfolder]: For 247296/247320 co-relation queries the response was YES. [2022-11-21 16:37:19,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58974 conditions, 4741 events. 2481/4741 cut-off events. For 247296/247320 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 30094 event pairs, 194 based on Foata normal form. 14/4723 useless extension candidates. Maximal degree in co-relation 58598. Up to 3009 conditions per place. [2022-11-21 16:37:19,126 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 584 selfloop transitions, 424 changer transitions 0/1115 dead transitions. [2022-11-21 16:37:19,127 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 1115 transitions, 31593 flow [2022-11-21 16:37:19,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-21 16:37:19,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-21 16:37:19,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2585 transitions. [2022-11-21 16:37:19,130 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5839168737293878 [2022-11-21 16:37:19,130 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2585 transitions. [2022-11-21 16:37:19,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2585 transitions. [2022-11-21 16:37:19,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:37:19,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2585 transitions. [2022-11-21 16:37:19,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.05263157894737) internal successors, (2585), 19 states have internal predecessors, (2585), 0 states have call successors, (0), 0 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 16:37:19,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:37:19,140 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:37:19,140 INFO L175 Difference]: Start difference. First operand has 438 places, 954 transitions, 26603 flow. Second operand 19 states and 2585 transitions. [2022-11-21 16:37:19,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 1115 transitions, 31593 flow [2022-11-21 16:37:20,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 1115 transitions, 31009 flow, removed 274 selfloop flow, removed 9 redundant places. [2022-11-21 16:37:20,716 INFO L231 Difference]: Finished difference. Result has 454 places, 1007 transitions, 30043 flow [2022-11-21 16:37:20,717 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=26167, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=954, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=374, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=563, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=30043, PETRI_PLACES=454, PETRI_TRANSITIONS=1007} [2022-11-21 16:37:20,717 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 223 predicate places. [2022-11-21 16:37:20,717 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 1007 transitions, 30043 flow [2022-11-21 16:37:20,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:37:20,718 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:37:20,718 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:37:20,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-21 16:37:20,718 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:37:20,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:37:20,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1437879406, now seen corresponding path program 15 times [2022-11-21 16:37:20,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:37:20,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854604310] [2022-11-21 16:37:20,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:37:20,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:37:20,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:37:21,909 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 16:37:21,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:37:21,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854604310] [2022-11-21 16:37:21,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854604310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:37:21,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:37:21,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:37:21,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8116138] [2022-11-21 16:37:21,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:37:21,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:37:21,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:37:21,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:37:21,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:37:21,913 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:37:21,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 1007 transitions, 30043 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:37:21,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:37:21,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:37:21,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:37:25,963 INFO L130 PetriNetUnfolder]: 2517/4879 cut-off events. [2022-11-21 16:37:25,964 INFO L131 PetriNetUnfolder]: For 272204/272240 co-relation queries the response was YES. [2022-11-21 16:37:26,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61867 conditions, 4879 events. 2517/4879 cut-off events. For 272204/272240 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 31078 event pairs, 437 based on Foata normal form. 8/4843 useless extension candidates. Maximal degree in co-relation 61484. Up to 3047 conditions per place. [2022-11-21 16:37:26,046 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 589 selfloop transitions, 438 changer transitions 0/1134 dead transitions. [2022-11-21 16:37:26,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 1134 transitions, 33671 flow [2022-11-21 16:37:26,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-21 16:37:26,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-21 16:37:26,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2583 transitions. [2022-11-21 16:37:26,050 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5834651005195391 [2022-11-21 16:37:26,050 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2583 transitions. [2022-11-21 16:37:26,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2583 transitions. [2022-11-21 16:37:26,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:37:26,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2583 transitions. [2022-11-21 16:37:26,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 135.94736842105263) internal successors, (2583), 19 states have internal predecessors, (2583), 0 states have call successors, (0), 0 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 16:37:26,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:37:26,059 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:37:26,059 INFO L175 Difference]: Start difference. First operand has 454 places, 1007 transitions, 30043 flow. Second operand 19 states and 2583 transitions. [2022-11-21 16:37:26,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 1134 transitions, 33671 flow [2022-11-21 16:37:27,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 1134 transitions, 33409 flow, removed 90 selfloop flow, removed 11 redundant places. [2022-11-21 16:37:27,715 INFO L231 Difference]: Finished difference. Result has 467 places, 1029 transitions, 32243 flow [2022-11-21 16:37:27,715 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=29782, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1007, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=416, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=578, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=32243, PETRI_PLACES=467, PETRI_TRANSITIONS=1029} [2022-11-21 16:37:27,716 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 236 predicate places. [2022-11-21 16:37:27,716 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 1029 transitions, 32243 flow [2022-11-21 16:37:27,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:37:27,716 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:37:27,717 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:37:27,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-21 16:37:27,717 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:37:27,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:37:27,717 INFO L85 PathProgramCache]: Analyzing trace with hash 939966272, now seen corresponding path program 16 times [2022-11-21 16:37:27,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:37:27,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814266822] [2022-11-21 16:37:27,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:37:27,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:37:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:37:29,023 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 16:37:29,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:37:29,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814266822] [2022-11-21 16:37:29,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814266822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:37:29,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:37:29,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:37:29,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841285960] [2022-11-21 16:37:29,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:37:29,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:37:29,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:37:29,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:37:29,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:37:29,027 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:37:29,029 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 1029 transitions, 32243 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:37:29,029 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:37:29,029 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:37:29,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:37:33,651 INFO L130 PetriNetUnfolder]: 2627/4991 cut-off events. [2022-11-21 16:37:33,651 INFO L131 PetriNetUnfolder]: For 311826/311850 co-relation queries the response was YES. [2022-11-21 16:37:33,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66464 conditions, 4991 events. 2627/4991 cut-off events. For 311826/311850 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 31886 event pairs, 194 based on Foata normal form. 14/4972 useless extension candidates. Maximal degree in co-relation 66075. Up to 3051 conditions per place. [2022-11-21 16:37:33,741 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 590 selfloop transitions, 472 changer transitions 0/1169 dead transitions. [2022-11-21 16:37:33,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 1169 transitions, 36189 flow [2022-11-21 16:37:33,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:37:33,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:37:33,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2716 transitions. [2022-11-21 16:37:33,745 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.582832618025751 [2022-11-21 16:37:33,745 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2716 transitions. [2022-11-21 16:37:33,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2716 transitions. [2022-11-21 16:37:33,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:37:33,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2716 transitions. [2022-11-21 16:37:33,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.8) internal successors, (2716), 20 states have internal predecessors, (2716), 0 states have call successors, (0), 0 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 16:37:33,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:37:33,755 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:37:33,756 INFO L175 Difference]: Start difference. First operand has 467 places, 1029 transitions, 32243 flow. Second operand 20 states and 2716 transitions. [2022-11-21 16:37:33,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 1169 transitions, 36189 flow [2022-11-21 16:37:35,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 1169 transitions, 35863 flow, removed 97 selfloop flow, removed 11 redundant places. [2022-11-21 16:37:35,837 INFO L231 Difference]: Finished difference. Result has 479 places, 1056 transitions, 34139 flow [2022-11-21 16:37:35,838 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=31925, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1029, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=449, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=34139, PETRI_PLACES=479, PETRI_TRANSITIONS=1056} [2022-11-21 16:37:35,839 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 248 predicate places. [2022-11-21 16:37:35,839 INFO L495 AbstractCegarLoop]: Abstraction has has 479 places, 1056 transitions, 34139 flow [2022-11-21 16:37:35,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:37:35,840 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:37:35,840 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:37:35,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-21 16:37:35,841 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:37:35,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:37:35,841 INFO L85 PathProgramCache]: Analyzing trace with hash -251932294, now seen corresponding path program 17 times [2022-11-21 16:37:35,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:37:35,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790788275] [2022-11-21 16:37:35,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:37:35,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:37:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:37:37,186 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 16:37:37,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:37:37,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790788275] [2022-11-21 16:37:37,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790788275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:37:37,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:37:37,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:37:37,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013566004] [2022-11-21 16:37:37,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:37:37,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:37:37,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:37:37,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:37:37,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:37:37,191 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:37:37,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 1056 transitions, 34139 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:37:37,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:37:37,193 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:37:37,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:37:42,111 INFO L130 PetriNetUnfolder]: 2628/5070 cut-off events. [2022-11-21 16:37:42,111 INFO L131 PetriNetUnfolder]: For 326212/326248 co-relation queries the response was YES. [2022-11-21 16:37:42,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68587 conditions, 5070 events. 2628/5070 cut-off events. For 326212/326248 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 32522 event pairs, 471 based on Foata normal form. 8/5034 useless extension candidates. Maximal degree in co-relation 68194. Up to 3175 conditions per place. [2022-11-21 16:37:42,198 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 612 selfloop transitions, 464 changer transitions 0/1183 dead transitions. [2022-11-21 16:37:42,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 1183 transitions, 37774 flow [2022-11-21 16:37:42,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:37:42,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:37:42,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2715 transitions. [2022-11-21 16:37:42,201 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5826180257510729 [2022-11-21 16:37:42,201 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2715 transitions. [2022-11-21 16:37:42,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2715 transitions. [2022-11-21 16:37:42,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:37:42,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2715 transitions. [2022-11-21 16:37:42,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.75) internal successors, (2715), 20 states have internal predecessors, (2715), 0 states have call successors, (0), 0 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 16:37:42,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:37:42,209 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:37:42,209 INFO L175 Difference]: Start difference. First operand has 479 places, 1056 transitions, 34139 flow. Second operand 20 states and 2715 transitions. [2022-11-21 16:37:42,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 1183 transitions, 37774 flow [2022-11-21 16:37:44,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 1183 transitions, 37368 flow, removed 162 selfloop flow, removed 11 redundant places. [2022-11-21 16:37:44,418 INFO L231 Difference]: Finished difference. Result has 491 places, 1076 transitions, 35736 flow [2022-11-21 16:37:44,419 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=33817, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1056, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=447, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=601, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=35736, PETRI_PLACES=491, PETRI_TRANSITIONS=1076} [2022-11-21 16:37:44,419 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 260 predicate places. [2022-11-21 16:37:44,419 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 1076 transitions, 35736 flow [2022-11-21 16:37:44,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:37:44,420 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:37:44,420 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:37:44,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-21 16:37:44,420 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:37:44,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:37:44,420 INFO L85 PathProgramCache]: Analyzing trace with hash -359239554, now seen corresponding path program 18 times [2022-11-21 16:37:44,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:37:44,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325658109] [2022-11-21 16:37:44,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:37:44,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:37:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:37:45,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:37:45,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:37:45,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325658109] [2022-11-21 16:37:45,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325658109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:37:45,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:37:45,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:37:45,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99997887] [2022-11-21 16:37:45,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:37:45,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:37:45,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:37:45,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:37:45,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:37:45,822 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:37:45,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 1076 transitions, 35736 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:37:45,824 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:37:45,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:37:45,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:37:51,182 INFO L130 PetriNetUnfolder]: 2685/5119 cut-off events. [2022-11-21 16:37:51,183 INFO L131 PetriNetUnfolder]: For 348853/348889 co-relation queries the response was YES. [2022-11-21 16:37:51,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71665 conditions, 5119 events. 2685/5119 cut-off events. For 348853/348889 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 32807 event pairs, 195 based on Foata normal form. 10/5091 useless extension candidates. Maximal degree in co-relation 71268. Up to 3181 conditions per place. [2022-11-21 16:37:51,272 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 629 selfloop transitions, 482 changer transitions 0/1218 dead transitions. [2022-11-21 16:37:51,272 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 1218 transitions, 40129 flow [2022-11-21 16:37:51,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:37:51,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:37:51,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2718 transitions. [2022-11-21 16:37:51,275 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5832618025751073 [2022-11-21 16:37:51,276 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2718 transitions. [2022-11-21 16:37:51,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2718 transitions. [2022-11-21 16:37:51,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:37:51,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2718 transitions. [2022-11-21 16:37:51,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.9) internal successors, (2718), 20 states have internal predecessors, (2718), 0 states have call successors, (0), 0 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 16:37:51,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:37:51,284 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:37:51,284 INFO L175 Difference]: Start difference. First operand has 491 places, 1076 transitions, 35736 flow. Second operand 20 states and 2718 transitions. [2022-11-21 16:37:51,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 1218 transitions, 40129 flow [2022-11-21 16:37:53,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 497 places, 1218 transitions, 39849 flow, removed 34 selfloop flow, removed 13 redundant places. [2022-11-21 16:37:53,742 INFO L231 Difference]: Finished difference. Result has 502 places, 1108 transitions, 38068 flow [2022-11-21 16:37:53,743 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=35466, PETRI_DIFFERENCE_MINUEND_PLACES=478, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1076, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=453, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=609, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=38068, PETRI_PLACES=502, PETRI_TRANSITIONS=1108} [2022-11-21 16:37:53,743 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 271 predicate places. [2022-11-21 16:37:53,744 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 1108 transitions, 38068 flow [2022-11-21 16:37:53,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:37:53,744 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:37:53,744 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:37:53,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-21 16:37:53,744 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:37:53,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:37:53,745 INFO L85 PathProgramCache]: Analyzing trace with hash -533536876, now seen corresponding path program 19 times [2022-11-21 16:37:53,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:37:53,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992478084] [2022-11-21 16:37:53,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:37:53,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:37:53,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:37:54,909 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 16:37:54,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:37:54,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992478084] [2022-11-21 16:37:54,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992478084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:37:54,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:37:54,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:37:54,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613859106] [2022-11-21 16:37:54,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:37:54,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:37:54,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:37:54,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:37:54,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:37:54,914 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:37:54,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 1108 transitions, 38068 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:37:54,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:37:54,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:37:54,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:38:00,624 INFO L130 PetriNetUnfolder]: 2686/5118 cut-off events. [2022-11-21 16:38:00,624 INFO L131 PetriNetUnfolder]: For 365223/365247 co-relation queries the response was YES. [2022-11-21 16:38:00,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73792 conditions, 5118 events. 2686/5118 cut-off events. For 365223/365247 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 32990 event pairs, 206 based on Foata normal form. 14/5099 useless extension candidates. Maximal degree in co-relation 73390. Up to 3247 conditions per place. [2022-11-21 16:38:00,792 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 637 selfloop transitions, 488 changer transitions 0/1232 dead transitions. [2022-11-21 16:38:00,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 1232 transitions, 41855 flow [2022-11-21 16:38:00,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:38:00,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:38:00,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2713 transitions. [2022-11-21 16:38:00,796 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5821888412017168 [2022-11-21 16:38:00,796 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2713 transitions. [2022-11-21 16:38:00,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2713 transitions. [2022-11-21 16:38:00,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:38:00,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2713 transitions. [2022-11-21 16:38:00,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.65) internal successors, (2713), 20 states have internal predecessors, (2713), 0 states have call successors, (0), 0 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 16:38:00,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:38:00,805 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:38:00,806 INFO L175 Difference]: Start difference. First operand has 502 places, 1108 transitions, 38068 flow. Second operand 20 states and 2713 transitions. [2022-11-21 16:38:00,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 1232 transitions, 41855 flow [2022-11-21 16:38:03,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 1232 transitions, 41218 flow, removed 225 selfloop flow, removed 12 redundant places. [2022-11-21 16:38:03,496 INFO L231 Difference]: Finished difference. Result has 513 places, 1128 transitions, 39573 flow [2022-11-21 16:38:03,496 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=37539, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=471, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=629, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=39573, PETRI_PLACES=513, PETRI_TRANSITIONS=1128} [2022-11-21 16:38:03,497 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 282 predicate places. [2022-11-21 16:38:03,497 INFO L495 AbstractCegarLoop]: Abstraction has has 513 places, 1128 transitions, 39573 flow [2022-11-21 16:38:03,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:38:03,497 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:38:03,497 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:38:03,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-21 16:38:03,498 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:38:03,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:03,498 INFO L85 PathProgramCache]: Analyzing trace with hash -158047366, now seen corresponding path program 20 times [2022-11-21 16:38:03,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:03,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351688241] [2022-11-21 16:38:03,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:03,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:03,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:04,677 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 16:38:04,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:04,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351688241] [2022-11-21 16:38:04,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351688241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:04,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:04,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:38:04,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953571385] [2022-11-21 16:38:04,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:04,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:38:04,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:04,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:38:04,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:38:04,681 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:38:04,683 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 1128 transitions, 39573 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:38:04,683 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:38:04,683 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:38:04,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:38:10,503 INFO L130 PetriNetUnfolder]: 2777/5271 cut-off events. [2022-11-21 16:38:10,503 INFO L131 PetriNetUnfolder]: For 391722/391746 co-relation queries the response was YES. [2022-11-21 16:38:10,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77447 conditions, 5271 events. 2777/5271 cut-off events. For 391722/391746 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 34224 event pairs, 316 based on Foata normal form. 11/5247 useless extension candidates. Maximal degree in co-relation 77041. Up to 3219 conditions per place. [2022-11-21 16:38:10,627 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 577 selfloop transitions, 595 changer transitions 0/1279 dead transitions. [2022-11-21 16:38:10,627 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 1279 transitions, 44162 flow [2022-11-21 16:38:10,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:38:10,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:38:10,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2715 transitions. [2022-11-21 16:38:10,631 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5826180257510729 [2022-11-21 16:38:10,631 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2715 transitions. [2022-11-21 16:38:10,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2715 transitions. [2022-11-21 16:38:10,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:38:10,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2715 transitions. [2022-11-21 16:38:10,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.75) internal successors, (2715), 20 states have internal predecessors, (2715), 0 states have call successors, (0), 0 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 16:38:10,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:38:10,641 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:38:10,641 INFO L175 Difference]: Start difference. First operand has 513 places, 1128 transitions, 39573 flow. Second operand 20 states and 2715 transitions. [2022-11-21 16:38:10,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 1279 transitions, 44162 flow [2022-11-21 16:38:13,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 1279 transitions, 43969 flow, removed 34 selfloop flow, removed 12 redundant places. [2022-11-21 16:38:13,183 INFO L231 Difference]: Finished difference. Result has 527 places, 1176 transitions, 43073 flow [2022-11-21 16:38:13,184 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=39380, PETRI_DIFFERENCE_MINUEND_PLACES=501, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=552, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=559, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=43073, PETRI_PLACES=527, PETRI_TRANSITIONS=1176} [2022-11-21 16:38:13,184 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 296 predicate places. [2022-11-21 16:38:13,185 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 1176 transitions, 43073 flow [2022-11-21 16:38:13,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:38:13,185 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:38:13,186 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:38:13,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-21 16:38:13,186 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:38:13,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:13,186 INFO L85 PathProgramCache]: Analyzing trace with hash 266354188, now seen corresponding path program 21 times [2022-11-21 16:38:13,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:13,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038625107] [2022-11-21 16:38:13,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:13,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:14,344 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 16:38:14,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:14,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038625107] [2022-11-21 16:38:14,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038625107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:14,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:14,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:38:14,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628308401] [2022-11-21 16:38:14,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:14,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:38:14,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:14,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:38:14,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:38:14,349 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:38:14,351 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 1176 transitions, 43073 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:38:14,351 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:38:14,351 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:38:14,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:38:20,104 INFO L130 PetriNetUnfolder]: 2855/5405 cut-off events. [2022-11-21 16:38:20,104 INFO L131 PetriNetUnfolder]: For 443323/443347 co-relation queries the response was YES. [2022-11-21 16:38:20,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82253 conditions, 5405 events. 2855/5405 cut-off events. For 443323/443347 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 35177 event pairs, 346 based on Foata normal form. 11/5381 useless extension candidates. Maximal degree in co-relation 81840. Up to 3289 conditions per place. [2022-11-21 16:38:20,294 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 588 selfloop transitions, 621 changer transitions 0/1316 dead transitions. [2022-11-21 16:38:20,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 1316 transitions, 47633 flow [2022-11-21 16:38:20,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-21 16:38:20,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-21 16:38:20,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2583 transitions. [2022-11-21 16:38:20,298 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5834651005195391 [2022-11-21 16:38:20,298 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2583 transitions. [2022-11-21 16:38:20,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2583 transitions. [2022-11-21 16:38:20,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:38:20,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2583 transitions. [2022-11-21 16:38:20,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 135.94736842105263) internal successors, (2583), 19 states have internal predecessors, (2583), 0 states have call successors, (0), 0 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 16:38:20,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:38:20,307 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:38:20,307 INFO L175 Difference]: Start difference. First operand has 527 places, 1176 transitions, 43073 flow. Second operand 19 states and 2583 transitions. [2022-11-21 16:38:20,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 1316 transitions, 47633 flow [2022-11-21 16:38:23,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 1316 transitions, 47140 flow, removed 77 selfloop flow, removed 10 redundant places. [2022-11-21 16:38:23,326 INFO L231 Difference]: Finished difference. Result has 541 places, 1213 transitions, 46184 flow [2022-11-21 16:38:23,327 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=42603, PETRI_DIFFERENCE_MINUEND_PLACES=517, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=585, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=577, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=46184, PETRI_PLACES=541, PETRI_TRANSITIONS=1213} [2022-11-21 16:38:23,328 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 310 predicate places. [2022-11-21 16:38:23,328 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 1213 transitions, 46184 flow [2022-11-21 16:38:23,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:38:23,329 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:38:23,329 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:38:23,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-21 16:38:23,330 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:38:23,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:23,330 INFO L85 PathProgramCache]: Analyzing trace with hash -529709466, now seen corresponding path program 22 times [2022-11-21 16:38:23,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:23,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372741328] [2022-11-21 16:38:23,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:23,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:24,448 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 16:38:24,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:24,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372741328] [2022-11-21 16:38:24,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372741328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:24,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:24,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:38:24,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120519131] [2022-11-21 16:38:24,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:24,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:38:24,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:24,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:38:24,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:38:24,452 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:38:24,454 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 1213 transitions, 46184 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:38:24,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:38:24,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:38:24,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:38:30,415 INFO L130 PetriNetUnfolder]: 2910/5512 cut-off events. [2022-11-21 16:38:30,415 INFO L131 PetriNetUnfolder]: For 479736/479760 co-relation queries the response was YES. [2022-11-21 16:38:30,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86774 conditions, 5512 events. 2910/5512 cut-off events. For 479736/479760 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 36134 event pairs, 332 based on Foata normal form. 11/5488 useless extension candidates. Maximal degree in co-relation 86355. Up to 3405 conditions per place. [2022-11-21 16:38:30,516 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 616 selfloop transitions, 625 changer transitions 0/1348 dead transitions. [2022-11-21 16:38:30,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 558 places, 1348 transitions, 50970 flow [2022-11-21 16:38:30,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-21 16:38:30,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-21 16:38:30,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2459 transitions. [2022-11-21 16:38:30,519 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5863137815927516 [2022-11-21 16:38:30,519 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2459 transitions. [2022-11-21 16:38:30,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2459 transitions. [2022-11-21 16:38:30,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:38:30,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2459 transitions. [2022-11-21 16:38:30,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.61111111111111) internal successors, (2459), 18 states have internal predecessors, (2459), 0 states have call successors, (0), 0 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 16:38:30,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 0 states have call successors, (0), 0 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 16:38:30,528 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 233.0) internal successors, (4427), 19 states have internal predecessors, (4427), 0 states have call successors, (0), 0 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 16:38:30,528 INFO L175 Difference]: Start difference. First operand has 541 places, 1213 transitions, 46184 flow. Second operand 18 states and 2459 transitions. [2022-11-21 16:38:30,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 558 places, 1348 transitions, 50970 flow [2022-11-21 16:38:33,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 1348 transitions, 50369 flow, removed 155 selfloop flow, removed 12 redundant places. [2022-11-21 16:38:33,545 INFO L231 Difference]: Finished difference. Result has 553 places, 1247 transitions, 49455 flow [2022-11-21 16:38:33,546 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=45615, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=591, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=603, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=49455, PETRI_PLACES=553, PETRI_TRANSITIONS=1247} [2022-11-21 16:38:33,546 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 322 predicate places. [2022-11-21 16:38:33,547 INFO L495 AbstractCegarLoop]: Abstraction has has 553 places, 1247 transitions, 49455 flow [2022-11-21 16:38:33,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:38:33,547 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:38:33,547 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:38:33,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-21 16:38:33,547 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:38:33,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:33,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1317103642, now seen corresponding path program 23 times [2022-11-21 16:38:33,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:33,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766694923] [2022-11-21 16:38:33,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:33,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:35,018 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 16:38:35,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:35,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766694923] [2022-11-21 16:38:35,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766694923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:35,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:35,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:38:35,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996825566] [2022-11-21 16:38:35,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:35,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:38:35,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:35,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:38:35,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:38:35,020 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:38:35,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 1247 transitions, 49455 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:38:35,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:38:35,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:38:35,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:38:41,548 INFO L130 PetriNetUnfolder]: 3035/5729 cut-off events. [2022-11-21 16:38:41,548 INFO L131 PetriNetUnfolder]: For 540037/540061 co-relation queries the response was YES. [2022-11-21 16:38:41,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93002 conditions, 5729 events. 3035/5729 cut-off events. For 540037/540061 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 37814 event pairs, 340 based on Foata normal form. 11/5705 useless extension candidates. Maximal degree in co-relation 92576. Up to 3475 conditions per place. [2022-11-21 16:38:41,755 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 626 selfloop transitions, 659 changer transitions 0/1392 dead transitions. [2022-11-21 16:38:41,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 572 places, 1392 transitions, 54654 flow [2022-11-21 16:38:41,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:38:41,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:38:41,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2721 transitions. [2022-11-21 16:38:41,759 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5839055793991417 [2022-11-21 16:38:41,759 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2721 transitions. [2022-11-21 16:38:41,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2721 transitions. [2022-11-21 16:38:41,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:38:41,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2721 transitions. [2022-11-21 16:38:41,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 136.05) internal successors, (2721), 20 states have internal predecessors, (2721), 0 states have call successors, (0), 0 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 16:38:41,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:38:41,767 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:38:41,767 INFO L175 Difference]: Start difference. First operand has 553 places, 1247 transitions, 49455 flow. Second operand 20 states and 2721 transitions. [2022-11-21 16:38:41,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 572 places, 1392 transitions, 54654 flow [2022-11-21 16:38:45,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 1392 transitions, 54231 flow, removed 113 selfloop flow, removed 9 redundant places. [2022-11-21 16:38:45,880 INFO L231 Difference]: Finished difference. Result has 570 places, 1287 transitions, 52655 flow [2022-11-21 16:38:45,881 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=49098, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=623, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=52655, PETRI_PLACES=570, PETRI_TRANSITIONS=1287} [2022-11-21 16:38:45,882 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 339 predicate places. [2022-11-21 16:38:45,882 INFO L495 AbstractCegarLoop]: Abstraction has has 570 places, 1287 transitions, 52655 flow [2022-11-21 16:38:45,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:38:45,882 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:38:45,883 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:38:45,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-21 16:38:45,883 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:38:45,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:45,884 INFO L85 PathProgramCache]: Analyzing trace with hash -401906076, now seen corresponding path program 24 times [2022-11-21 16:38:45,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:45,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080283827] [2022-11-21 16:38:45,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:45,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:47,033 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 16:38:47,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:47,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080283827] [2022-11-21 16:38:47,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080283827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:47,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:47,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:38:47,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195147810] [2022-11-21 16:38:47,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:47,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:38:47,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:47,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:38:47,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:38:47,037 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:38:47,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 1287 transitions, 52655 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:38:47,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:38:47,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:38:47,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:38:54,044 INFO L130 PetriNetUnfolder]: 3114/5876 cut-off events. [2022-11-21 16:38:54,044 INFO L131 PetriNetUnfolder]: For 582687/582711 co-relation queries the response was YES. [2022-11-21 16:38:54,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98483 conditions, 5876 events. 3114/5876 cut-off events. For 582687/582711 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 39083 event pairs, 372 based on Foata normal form. 11/5851 useless extension candidates. Maximal degree in co-relation 98050. Up to 3645 conditions per place. [2022-11-21 16:38:54,249 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 643 selfloop transitions, 681 changer transitions 0/1431 dead transitions. [2022-11-21 16:38:54,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 1431 transitions, 58182 flow [2022-11-21 16:38:54,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-21 16:38:54,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-21 16:38:54,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2589 transitions. [2022-11-21 16:38:54,252 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5848204201490852 [2022-11-21 16:38:54,252 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2589 transitions. [2022-11-21 16:38:54,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2589 transitions. [2022-11-21 16:38:54,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:38:54,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2589 transitions. [2022-11-21 16:38:54,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.26315789473685) internal successors, (2589), 19 states have internal predecessors, (2589), 0 states have call successors, (0), 0 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 16:38:54,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:38:54,260 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:38:54,261 INFO L175 Difference]: Start difference. First operand has 570 places, 1287 transitions, 52655 flow. Second operand 19 states and 2589 transitions. [2022-11-21 16:38:54,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 1431 transitions, 58182 flow [2022-11-21 16:38:58,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 1431 transitions, 57629 flow, removed 133 selfloop flow, removed 10 redundant places. [2022-11-21 16:38:58,132 INFO L231 Difference]: Finished difference. Result has 583 places, 1328 transitions, 56576 flow [2022-11-21 16:38:58,133 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=52166, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=642, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=631, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=56576, PETRI_PLACES=583, PETRI_TRANSITIONS=1328} [2022-11-21 16:38:58,133 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 352 predicate places. [2022-11-21 16:38:58,133 INFO L495 AbstractCegarLoop]: Abstraction has has 583 places, 1328 transitions, 56576 flow [2022-11-21 16:38:58,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:38:58,134 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:38:58,134 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:38:58,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-21 16:38:58,134 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:38:58,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:58,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1423457512, now seen corresponding path program 25 times [2022-11-21 16:38:58,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:58,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056564112] [2022-11-21 16:38:58,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:58,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:59,549 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 16:38:59,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:59,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056564112] [2022-11-21 16:38:59,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056564112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:59,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:59,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:38:59,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273380239] [2022-11-21 16:38:59,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:59,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:38:59,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:59,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:38:59,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:38:59,553 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:38:59,555 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 1328 transitions, 56576 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:38:59,555 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:38:59,555 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:38:59,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:39:07,489 INFO L130 PetriNetUnfolder]: 3157/5957 cut-off events. [2022-11-21 16:39:07,489 INFO L131 PetriNetUnfolder]: For 634565/634601 co-relation queries the response was YES. [2022-11-21 16:39:07,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102266 conditions, 5957 events. 3157/5957 cut-off events. For 634565/634601 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 39514 event pairs, 536 based on Foata normal form. 8/5923 useless extension candidates. Maximal degree in co-relation 101828. Up to 3701 conditions per place. [2022-11-21 16:39:07,661 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 648 selfloop transitions, 696 changer transitions 0/1451 dead transitions. [2022-11-21 16:39:07,661 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 1451 transitions, 60953 flow [2022-11-21 16:39:07,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:39:07,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:39:07,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2720 transitions. [2022-11-21 16:39:07,665 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5836909871244635 [2022-11-21 16:39:07,665 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2720 transitions. [2022-11-21 16:39:07,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2720 transitions. [2022-11-21 16:39:07,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:39:07,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2720 transitions. [2022-11-21 16:39:07,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 136.0) internal successors, (2720), 20 states have internal predecessors, (2720), 0 states have call successors, (0), 0 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 16:39:07,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:39:07,673 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:39:07,673 INFO L175 Difference]: Start difference. First operand has 583 places, 1328 transitions, 56576 flow. Second operand 20 states and 2720 transitions. [2022-11-21 16:39:07,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 1451 transitions, 60953 flow [2022-11-21 16:39:11,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 590 places, 1451 transitions, 60592 flow, removed 9 selfloop flow, removed 12 redundant places. [2022-11-21 16:39:11,872 INFO L231 Difference]: Finished difference. Result has 596 places, 1354 transitions, 59695 flow [2022-11-21 16:39:11,874 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=56220, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=675, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=642, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=59695, PETRI_PLACES=596, PETRI_TRANSITIONS=1354} [2022-11-21 16:39:11,874 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 365 predicate places. [2022-11-21 16:39:11,874 INFO L495 AbstractCegarLoop]: Abstraction has has 596 places, 1354 transitions, 59695 flow [2022-11-21 16:39:11,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:39:11,875 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:39:11,875 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:39:11,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-21 16:39:11,876 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:39:11,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:39:11,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1921644938, now seen corresponding path program 26 times [2022-11-21 16:39:11,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:39:11,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891545963] [2022-11-21 16:39:11,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:39:11,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:39:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:39:13,233 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 16:39:13,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:39:13,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891545963] [2022-11-21 16:39:13,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891545963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:39:13,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:39:13,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:39:13,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805389025] [2022-11-21 16:39:13,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:39:13,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:39:13,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:39:13,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:39:13,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:39:13,237 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:39:13,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 1354 transitions, 59695 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:39:13,239 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:39:13,239 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:39:13,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:39:21,193 INFO L130 PetriNetUnfolder]: 3155/5963 cut-off events. [2022-11-21 16:39:21,193 INFO L131 PetriNetUnfolder]: For 667605/667641 co-relation queries the response was YES. [2022-11-21 16:39:21,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104951 conditions, 5963 events. 3155/5963 cut-off events. For 667605/667641 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 39625 event pairs, 526 based on Foata normal form. 8/5929 useless extension candidates. Maximal degree in co-relation 104507. Up to 3671 conditions per place. [2022-11-21 16:39:21,346 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 657 selfloop transitions, 704 changer transitions 0/1468 dead transitions. [2022-11-21 16:39:21,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 615 places, 1468 transitions, 63556 flow [2022-11-21 16:39:21,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:39:21,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:39:21,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2717 transitions. [2022-11-21 16:39:21,349 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5830472103004292 [2022-11-21 16:39:21,349 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2717 transitions. [2022-11-21 16:39:21,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2717 transitions. [2022-11-21 16:39:21,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:39:21,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2717 transitions. [2022-11-21 16:39:21,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.85) internal successors, (2717), 20 states have internal predecessors, (2717), 0 states have call successors, (0), 0 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 16:39:21,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:39:21,358 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:39:21,358 INFO L175 Difference]: Start difference. First operand has 596 places, 1354 transitions, 59695 flow. Second operand 20 states and 2717 transitions. [2022-11-21 16:39:21,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 615 places, 1468 transitions, 63556 flow [2022-11-21 16:39:25,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 603 places, 1468 transitions, 62800 flow, removed 173 selfloop flow, removed 12 redundant places. [2022-11-21 16:39:25,936 INFO L231 Difference]: Finished difference. Result has 606 places, 1369 transitions, 61152 flow [2022-11-21 16:39:25,937 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=59015, PETRI_DIFFERENCE_MINUEND_PLACES=584, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=692, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=657, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=61152, PETRI_PLACES=606, PETRI_TRANSITIONS=1369} [2022-11-21 16:39:25,937 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 375 predicate places. [2022-11-21 16:39:25,937 INFO L495 AbstractCegarLoop]: Abstraction has has 606 places, 1369 transitions, 61152 flow [2022-11-21 16:39:25,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:39:25,938 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:39:25,938 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:39:25,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-21 16:39:25,938 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:39:25,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:39:25,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1598708224, now seen corresponding path program 27 times [2022-11-21 16:39:25,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:39:25,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988008258] [2022-11-21 16:39:25,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:39:25,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:39:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:39:27,629 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 16:39:27,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:39:27,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988008258] [2022-11-21 16:39:27,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988008258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:39:27,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:39:27,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:39:27,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188956770] [2022-11-21 16:39:27,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:39:27,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:39:27,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:39:27,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:39:27,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:39:27,634 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:39:27,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 1369 transitions, 61152 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:39:27,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:39:27,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:39:27,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:39:35,656 INFO L130 PetriNetUnfolder]: 3268/6152 cut-off events. [2022-11-21 16:39:35,656 INFO L131 PetriNetUnfolder]: For 700851/700887 co-relation queries the response was YES. [2022-11-21 16:39:35,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110142 conditions, 6152 events. 3268/6152 cut-off events. For 700851/700887 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 41043 event pairs, 528 based on Foata normal form. 8/6118 useless extension candidates. Maximal degree in co-relation 109695. Up to 3723 conditions per place. [2022-11-21 16:39:35,841 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 659 selfloop transitions, 739 changer transitions 0/1505 dead transitions. [2022-11-21 16:39:35,841 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 1505 transitions, 66249 flow [2022-11-21 16:39:35,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:39:35,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:39:35,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2718 transitions. [2022-11-21 16:39:35,844 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5832618025751073 [2022-11-21 16:39:35,844 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2718 transitions. [2022-11-21 16:39:35,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2718 transitions. [2022-11-21 16:39:35,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:39:35,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2718 transitions. [2022-11-21 16:39:35,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.9) internal successors, (2718), 20 states have internal predecessors, (2718), 0 states have call successors, (0), 0 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 16:39:35,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:39:35,848 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:39:35,848 INFO L175 Difference]: Start difference. First operand has 606 places, 1369 transitions, 61152 flow. Second operand 20 states and 2718 transitions. [2022-11-21 16:39:35,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 1505 transitions, 66249 flow [2022-11-21 16:39:40,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 612 places, 1505 transitions, 65710 flow, removed 33 selfloop flow, removed 13 redundant places. [2022-11-21 16:39:40,683 INFO L231 Difference]: Finished difference. Result has 617 places, 1402 transitions, 64032 flow [2022-11-21 16:39:40,684 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=60631, PETRI_DIFFERENCE_MINUEND_PLACES=593, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=710, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=64032, PETRI_PLACES=617, PETRI_TRANSITIONS=1402} [2022-11-21 16:39:40,685 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 386 predicate places. [2022-11-21 16:39:40,685 INFO L495 AbstractCegarLoop]: Abstraction has has 617 places, 1402 transitions, 64032 flow [2022-11-21 16:39:40,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:39:40,685 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:39:40,685 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:39:40,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-21 16:39:40,686 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:39:40,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:39:40,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1705062094, now seen corresponding path program 28 times [2022-11-21 16:39:40,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:39:40,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561345169] [2022-11-21 16:39:40,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:39:40,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:39:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:39:42,228 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 16:39:42,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:39:42,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561345169] [2022-11-21 16:39:42,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561345169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:39:42,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:39:42,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:39:42,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908141054] [2022-11-21 16:39:42,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:39:42,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:39:42,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:39:42,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:39:42,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:39:42,231 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:39:42,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 617 places, 1402 transitions, 64032 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:39:42,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:39:42,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:39:42,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:39:50,293 INFO L130 PetriNetUnfolder]: 3269/6165 cut-off events. [2022-11-21 16:39:50,293 INFO L131 PetriNetUnfolder]: For 735946/735982 co-relation queries the response was YES. [2022-11-21 16:39:50,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112953 conditions, 6165 events. 3269/6165 cut-off events. For 735946/735982 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 41203 event pairs, 532 based on Foata normal form. 8/6130 useless extension candidates. Maximal degree in co-relation 112501. Up to 3789 conditions per place. [2022-11-21 16:39:50,456 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 667 selfloop transitions, 745 changer transitions 0/1519 dead transitions. [2022-11-21 16:39:50,457 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 1519 transitions, 68382 flow [2022-11-21 16:39:50,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:39:50,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:39:50,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2713 transitions. [2022-11-21 16:39:50,460 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5821888412017168 [2022-11-21 16:39:50,460 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2713 transitions. [2022-11-21 16:39:50,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2713 transitions. [2022-11-21 16:39:50,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:39:50,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2713 transitions. [2022-11-21 16:39:50,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.65) internal successors, (2713), 20 states have internal predecessors, (2713), 0 states have call successors, (0), 0 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 16:39:50,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:39:50,467 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:39:50,467 INFO L175 Difference]: Start difference. First operand has 617 places, 1402 transitions, 64032 flow. Second operand 20 states and 2713 transitions. [2022-11-21 16:39:50,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 1519 transitions, 68382 flow [2022-11-21 16:39:55,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 625 places, 1519 transitions, 67784 flow, removed 173 selfloop flow, removed 11 redundant places. [2022-11-21 16:39:55,294 INFO L231 Difference]: Finished difference. Result has 629 places, 1422 transitions, 66270 flow [2022-11-21 16:39:55,296 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=63540, PETRI_DIFFERENCE_MINUEND_PLACES=606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=728, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=666, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=66270, PETRI_PLACES=629, PETRI_TRANSITIONS=1422} [2022-11-21 16:39:55,296 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 398 predicate places. [2022-11-21 16:39:55,296 INFO L495 AbstractCegarLoop]: Abstraction has has 629 places, 1422 transitions, 66270 flow [2022-11-21 16:39:55,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:39:55,297 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:39:55,297 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:39:55,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-21 16:39:55,298 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:39:55,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:39:55,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1107912212, now seen corresponding path program 29 times [2022-11-21 16:39:55,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:39:55,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987414063] [2022-11-21 16:39:55,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:39:55,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:39:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:39:56,615 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 16:39:56,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:39:56,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987414063] [2022-11-21 16:39:56,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987414063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:39:56,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:39:56,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:39:56,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412488715] [2022-11-21 16:39:56,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:39:56,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:39:56,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:39:56,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:39:56,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:39:56,619 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:39:56,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 1422 transitions, 66270 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:39:56,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:39:56,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:39:56,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:40:05,268 INFO L130 PetriNetUnfolder]: 3324/6272 cut-off events. [2022-11-21 16:40:05,269 INFO L131 PetriNetUnfolder]: For 772012/772048 co-relation queries the response was YES. [2022-11-21 16:40:05,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117345 conditions, 6272 events. 3324/6272 cut-off events. For 772012/772048 co-relation queries the response was YES. Maximal size of possible extension queue 340. Compared 42298 event pairs, 538 based on Foata normal form. 8/6238 useless extension candidates. Maximal degree in co-relation 116889. Up to 3949 conditions per place. [2022-11-21 16:40:05,422 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 708 selfloop transitions, 737 changer transitions 0/1552 dead transitions. [2022-11-21 16:40:05,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 648 places, 1552 transitions, 71436 flow [2022-11-21 16:40:05,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:40:05,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:40:05,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2718 transitions. [2022-11-21 16:40:05,424 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5832618025751073 [2022-11-21 16:40:05,425 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2718 transitions. [2022-11-21 16:40:05,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2718 transitions. [2022-11-21 16:40:05,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:40:05,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2718 transitions. [2022-11-21 16:40:05,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.9) internal successors, (2718), 20 states have internal predecessors, (2718), 0 states have call successors, (0), 0 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 16:40:05,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:40:05,430 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:40:05,430 INFO L175 Difference]: Start difference. First operand has 629 places, 1422 transitions, 66270 flow. Second operand 20 states and 2718 transitions. [2022-11-21 16:40:05,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 648 places, 1552 transitions, 71436 flow [2022-11-21 16:40:10,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 635 places, 1552 transitions, 70984 flow, removed 32 selfloop flow, removed 13 redundant places. [2022-11-21 16:40:10,620 INFO L231 Difference]: Finished difference. Result has 642 places, 1453 transitions, 70006 flow [2022-11-21 16:40:10,621 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=65820, PETRI_DIFFERENCE_MINUEND_PLACES=616, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=709, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=700, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=70006, PETRI_PLACES=642, PETRI_TRANSITIONS=1453} [2022-11-21 16:40:10,622 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 411 predicate places. [2022-11-21 16:40:10,622 INFO L495 AbstractCegarLoop]: Abstraction has has 642 places, 1453 transitions, 70006 flow [2022-11-21 16:40:10,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:40:10,623 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:40:10,623 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:40:10,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-21 16:40:10,623 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:40:10,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:40:10,624 INFO L85 PathProgramCache]: Analyzing trace with hash -2027261298, now seen corresponding path program 30 times [2022-11-21 16:40:10,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:40:10,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681586523] [2022-11-21 16:40:10,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:40:10,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:40:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:40:12,050 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 16:40:12,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:40:12,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681586523] [2022-11-21 16:40:12,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681586523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:40:12,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:40:12,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:40:12,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486736036] [2022-11-21 16:40:12,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:40:12,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:40:12,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:40:12,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:40:12,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:40:12,055 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:40:12,056 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 642 places, 1453 transitions, 70006 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:40:12,056 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:40:12,056 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:40:12,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:40:20,336 INFO L130 PetriNetUnfolder]: 3364/6342 cut-off events. [2022-11-21 16:40:20,336 INFO L131 PetriNetUnfolder]: For 819078/819102 co-relation queries the response was YES. [2022-11-21 16:40:20,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121438 conditions, 6342 events. 3364/6342 cut-off events. For 819078/819102 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 43108 event pairs, 368 based on Foata normal form. 11/6317 useless extension candidates. Maximal degree in co-relation 120975. Up to 3793 conditions per place. [2022-11-21 16:40:20,489 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 692 selfloop transitions, 778 changer transitions 0/1577 dead transitions. [2022-11-21 16:40:20,489 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 1577 transitions, 74589 flow [2022-11-21 16:40:20,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:40:20,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:40:20,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2716 transitions. [2022-11-21 16:40:20,492 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.582832618025751 [2022-11-21 16:40:20,492 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2716 transitions. [2022-11-21 16:40:20,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2716 transitions. [2022-11-21 16:40:20,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:40:20,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2716 transitions. [2022-11-21 16:40:20,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.8) internal successors, (2716), 20 states have internal predecessors, (2716), 0 states have call successors, (0), 0 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 16:40:20,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:40:20,500 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:40:20,500 INFO L175 Difference]: Start difference. First operand has 642 places, 1453 transitions, 70006 flow. Second operand 20 states and 2716 transitions. [2022-11-21 16:40:20,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 661 places, 1577 transitions, 74589 flow [2022-11-21 16:40:26,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 650 places, 1577 transitions, 74078 flow, removed 79 selfloop flow, removed 11 redundant places. [2022-11-21 16:40:26,714 INFO L231 Difference]: Finished difference. Result has 654 places, 1475 transitions, 72390 flow [2022-11-21 16:40:26,715 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=69496, PETRI_DIFFERENCE_MINUEND_PLACES=631, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=759, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=72390, PETRI_PLACES=654, PETRI_TRANSITIONS=1475} [2022-11-21 16:40:26,716 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 423 predicate places. [2022-11-21 16:40:26,716 INFO L495 AbstractCegarLoop]: Abstraction has has 654 places, 1475 transitions, 72390 flow [2022-11-21 16:40:26,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:40:26,716 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:40:26,716 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:40:26,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-21 16:40:26,716 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:40:26,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:40:26,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1271892188, now seen corresponding path program 31 times [2022-11-21 16:40:26,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:40:26,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742117235] [2022-11-21 16:40:26,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:40:26,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:40:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:40:27,885 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 16:40:27,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:40:27,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742117235] [2022-11-21 16:40:27,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742117235] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:40:27,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:40:27,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:40:27,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848420055] [2022-11-21 16:40:27,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:40:27,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:40:27,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:40:27,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:40:27,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:40:27,889 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:40:27,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 1475 transitions, 72390 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:40:27,891 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:40:27,891 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:40:27,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:40:36,684 INFO L130 PetriNetUnfolder]: 3406/6424 cut-off events. [2022-11-21 16:40:36,684 INFO L131 PetriNetUnfolder]: For 862563/862587 co-relation queries the response was YES. [2022-11-21 16:40:36,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126012 conditions, 6424 events. 3406/6424 cut-off events. For 862563/862587 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 43753 event pairs, 418 based on Foata normal form. 11/6399 useless extension candidates. Maximal degree in co-relation 125545. Up to 4067 conditions per place. [2022-11-21 16:40:36,841 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 722 selfloop transitions, 768 changer transitions 0/1597 dead transitions. [2022-11-21 16:40:36,841 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 672 places, 1597 transitions, 77329 flow [2022-11-21 16:40:36,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-21 16:40:36,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-21 16:40:36,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2586 transitions. [2022-11-21 16:40:36,844 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5841427603343122 [2022-11-21 16:40:36,844 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2586 transitions. [2022-11-21 16:40:36,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2586 transitions. [2022-11-21 16:40:36,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:40:36,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2586 transitions. [2022-11-21 16:40:36,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.10526315789474) internal successors, (2586), 19 states have internal predecessors, (2586), 0 states have call successors, (0), 0 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 16:40:36,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:40:36,849 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 233.0) internal successors, (4660), 20 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:40:36,849 INFO L175 Difference]: Start difference. First operand has 654 places, 1475 transitions, 72390 flow. Second operand 19 states and 2586 transitions. [2022-11-21 16:40:36,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 672 places, 1597 transitions, 77329 flow [2022-11-21 16:40:43,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 660 places, 1597 transitions, 76793 flow, removed 93 selfloop flow, removed 12 redundant places. [2022-11-21 16:40:43,523 INFO L231 Difference]: Finished difference. Result has 664 places, 1498 transitions, 75644 flow [2022-11-21 16:40:43,525 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=233, PETRI_DIFFERENCE_MINUEND_FLOW=71879, PETRI_DIFFERENCE_MINUEND_PLACES=642, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=745, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=715, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=75644, PETRI_PLACES=664, PETRI_TRANSITIONS=1498} [2022-11-21 16:40:43,525 INFO L288 CegarLoopForPetriNet]: 231 programPoint places, 433 predicate places. [2022-11-21 16:40:43,525 INFO L495 AbstractCegarLoop]: Abstraction has has 664 places, 1498 transitions, 75644 flow [2022-11-21 16:40:43,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:40:43,526 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:40:43,526 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:40:43,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-21 16:40:43,527 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-21 16:40:43,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:40:43,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1267740668, now seen corresponding path program 32 times [2022-11-21 16:40:43,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:40:43,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76562435] [2022-11-21 16:40:43,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:40:43,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:40:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:40:44,925 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 16:40:44,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:40:44,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76562435] [2022-11-21 16:40:44,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76562435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:40:44,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:40:44,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-21 16:40:44,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593228732] [2022-11-21 16:40:44,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:40:44,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 16:40:44,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:40:44,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 16:40:44,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:40:44,928 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 233 [2022-11-21 16:40:44,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 664 places, 1498 transitions, 75644 flow. Second operand has 18 states, 18 states have (on average 125.05555555555556) internal successors, (2251), 18 states have internal predecessors, (2251), 0 states have call successors, (0), 0 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 16:40:44,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:40:44,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 233 [2022-11-21 16:40:44,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:40:53,887 INFO L130 PetriNetUnfolder]: 3404/6434 cut-off events. [2022-11-21 16:40:53,887 INFO L131 PetriNetUnfolder]: For 880669/880705 co-relation queries the response was YES. [2022-11-21 16:40:54,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128322 conditions, 6434 events. 3404/6434 cut-off events. For 880669/880705 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 43807 event pairs, 507 based on Foata normal form. 8/6399 useless extension candidates. Maximal degree in co-relation 127851. Up to 4029 conditions per place. [2022-11-21 16:40:54,222 INFO L137 encePairwiseOnDemand]: 213/233 looper letters, 726 selfloop transitions, 779 changer transitions 0/1612 dead transitions. [2022-11-21 16:40:54,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 683 places, 1612 transitions, 79878 flow [2022-11-21 16:40:54,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 16:40:54,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 16:40:54,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2714 transitions. [2022-11-21 16:40:54,227 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5824034334763949 [2022-11-21 16:40:54,227 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2714 transitions. [2022-11-21 16:40:54,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2714 transitions. [2022-11-21 16:40:54,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:40:54,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2714 transitions. [2022-11-21 16:40:54,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 135.7) internal successors, (2714), 20 states have internal predecessors, (2714), 0 states have call successors, (0), 0 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 16:40:54,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:40:54,234 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 233.0) internal successors, (4893), 21 states have internal predecessors, (4893), 0 states have call successors, (0), 0 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 16:40:54,234 INFO L175 Difference]: Start difference. First operand has 664 places, 1498 transitions, 75644 flow. Second operand 20 states and 2714 transitions. [2022-11-21 16:40:54,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 683 places, 1612 transitions, 79878 flow