./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_6c4dcf52-6538-41ce-a999-147b80570869/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4dcf52-6538-41ce-a999-147b80570869/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4dcf52-6538-41ce-a999-147b80570869/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4dcf52-6538-41ce-a999-147b80570869/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4dcf52-6538-41ce-a999-147b80570869/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4dcf52-6538-41ce-a999-147b80570869/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --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 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:56:35,179 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:56:35,254 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4dcf52-6538-41ce-a999-147b80570869/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:56:35,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:56:35,260 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:56:35,287 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:56:35,287 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:56:35,288 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:56:35,289 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:56:35,290 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:56:35,291 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:56:35,291 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:56:35,292 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:56:35,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:56:35,294 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:56:35,294 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:56:35,295 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:56:35,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:56:35,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:56:35,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:56:35,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:56:35,299 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:56:35,299 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:56:35,300 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:56:35,300 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:56:35,301 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:56:35,301 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:56:35,302 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:56:35,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:56:35,303 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:56:35,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:56:35,304 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:56:35,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:56:35,305 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:56:35,306 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:56:35,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:56:35,307 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:56:35,307 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:56:35,308 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:56:35,308 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:56:35,308 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:56:35,309 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4dcf52-6538-41ce-a999-147b80570869/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4dcf52-6538-41ce-a999-147b80570869/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb [2023-11-26 11:56:35,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:56:35,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:56:35,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:56:35,655 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:56:35,655 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:56:35,657 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4dcf52-6538-41ce-a999-147b80570869/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2023-11-26 11:56:38,727 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:56:39,103 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:56:39,104 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4dcf52-6538-41ce-a999-147b80570869/sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2023-11-26 11:56:39,136 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4dcf52-6538-41ce-a999-147b80570869/bin/uautomizer-verify-VRDe98Ueme/data/ae9de58da/6a03c909723d4c1e99a65396187bcc8a/FLAGafead6f69 [2023-11-26 11:56:39,153 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4dcf52-6538-41ce-a999-147b80570869/bin/uautomizer-verify-VRDe98Ueme/data/ae9de58da/6a03c909723d4c1e99a65396187bcc8a [2023-11-26 11:56:39,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:56:39,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:56:39,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:56:39,168 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:56:39,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:56:39,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:56:39" (1/1) ... [2023-11-26 11:56:39,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@497bc7f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:39, skipping insertion in model container [2023-11-26 11:56:39,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:56:39" (1/1) ... [2023-11-26 11:56:39,233 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:56:39,884 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:56:39,902 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:56:39,990 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:56:40,094 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:56:40,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:40 WrapperNode [2023-11-26 11:56:40,095 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:56:40,096 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:56:40,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:56:40,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:56:40,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:40" (1/1) ... [2023-11-26 11:56:40,140 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:40" (1/1) ... [2023-11-26 11:56:40,187 INFO L138 Inliner]: procedures = 370, calls = 39, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 213 [2023-11-26 11:56:40,191 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:56:40,192 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:56:40,192 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:56:40,192 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:56:40,214 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:40" (1/1) ... [2023-11-26 11:56:40,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:40" (1/1) ... [2023-11-26 11:56:40,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:40" (1/1) ... [2023-11-26 11:56:40,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:40" (1/1) ... [2023-11-26 11:56:40,289 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:40" (1/1) ... [2023-11-26 11:56:40,305 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:40" (1/1) ... [2023-11-26 11:56:40,308 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:40" (1/1) ... [2023-11-26 11:56:40,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:40" (1/1) ... [2023-11-26 11:56:40,315 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:56:40,316 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:56:40,331 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:56:40,331 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:56:40,332 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:40" (1/1) ... [2023-11-26 11:56:40,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:56:40,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4dcf52-6538-41ce-a999-147b80570869/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:40,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4dcf52-6538-41ce-a999-147b80570869/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:40,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c4dcf52-6538-41ce-a999-147b80570869/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:56:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:56:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-26 11:56:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:56:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 11:56:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:56:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:56:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 11:56:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:56:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:56:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-26 11:56:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-26 11:56:40,424 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-26 11:56:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:56:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:56:40,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:56:40,426 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:56:40,584 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:56:40,586 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:56:41,138 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:56:41,163 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:56:41,163 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:56:41,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:56:41 BoogieIcfgContainer [2023-11-26 11:56:41,166 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:56:41,168 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:56:41,169 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:56:41,172 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:56:41,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:56:39" (1/3) ... [2023-11-26 11:56:41,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f968a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:56:41, skipping insertion in model container [2023-11-26 11:56:41,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:40" (2/3) ... [2023-11-26 11:56:41,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f968a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:56:41, skipping insertion in model container [2023-11-26 11:56:41,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:56:41" (3/3) ... [2023-11-26 11:56:41,176 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_05-ptra_rc.i [2023-11-26 11:56:41,186 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:56:41,196 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:56:41,197 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-26 11:56:41,197 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:56:41,297 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 11:56:41,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 248 places, 244 transitions, 492 flow [2023-11-26 11:56:41,449 INFO L124 PetriNetUnfolderBase]: 0/243 cut-off events. [2023-11-26 11:56:41,449 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:56:41,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 243 events. 0/243 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 94 event pairs, 0 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-26 11:56:41,453 INFO L82 GeneralOperation]: Start removeDead. Operand has 248 places, 244 transitions, 492 flow [2023-11-26 11:56:41,461 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 247 places, 243 transitions, 489 flow [2023-11-26 11:56:41,471 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:56:41,479 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=LoopHeads, 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;@16f9a1b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:56:41,479 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-26 11:56:41,490 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:56:41,490 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2023-11-26 11:56:41,490 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:56:41,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:41,491 INFO L208 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] [2023-11-26 11:56:41,492 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 11:56:41,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:41,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1057674396, now seen corresponding path program 1 times [2023-11-26 11:56:41,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:41,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416950859] [2023-11-26 11:56:41,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:41,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:42,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:42,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:42,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416950859] [2023-11-26 11:56:42,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416950859] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:42,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:42,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:56:42,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553561884] [2023-11-26 11:56:42,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:42,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:56:42,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:42,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:56:42,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:56:43,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 244 [2023-11-26 11:56:43,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 243 transitions, 489 flow. Second operand has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:43,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:43,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 244 [2023-11-26 11:56:43,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:43,545 INFO L124 PetriNetUnfolderBase]: 220/1071 cut-off events. [2023-11-26 11:56:43,545 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 11:56:43,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1583 conditions, 1071 events. 220/1071 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5490 event pairs, 220 based on Foata normal form. 0/964 useless extension candidates. Maximal degree in co-relation 1410. Up to 493 conditions per place. [2023-11-26 11:56:43,595 INFO L140 encePairwiseOnDemand]: 226/244 looper letters, 52 selfloop transitions, 15 changer transitions 0/240 dead transitions. [2023-11-26 11:56:43,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 240 transitions, 617 flow [2023-11-26 11:56:43,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:56:43,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:56:43,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1114 transitions. [2023-11-26 11:56:43,629 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7609289617486339 [2023-11-26 11:56:43,630 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1114 transitions. [2023-11-26 11:56:43,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1114 transitions. [2023-11-26 11:56:43,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:43,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1114 transitions. [2023-11-26 11:56:43,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 185.66666666666666) internal successors, (1114), 6 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:43,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:43,658 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:43,660 INFO L175 Difference]: Start difference. First operand has 247 places, 243 transitions, 489 flow. Second operand 6 states and 1114 transitions. [2023-11-26 11:56:43,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 240 transitions, 617 flow [2023-11-26 11:56:43,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 240 transitions, 616 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:56:43,676 INFO L231 Difference]: Finished difference. Result has 248 places, 240 transitions, 512 flow [2023-11-26 11:56:43,679 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=512, PETRI_PLACES=248, PETRI_TRANSITIONS=240} [2023-11-26 11:56:43,685 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 1 predicate places. [2023-11-26 11:56:43,685 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 240 transitions, 512 flow [2023-11-26 11:56:43,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:43,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:43,687 INFO L208 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] [2023-11-26 11:56:43,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:56:43,687 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 11:56:43,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:43,689 INFO L85 PathProgramCache]: Analyzing trace with hash -644905690, now seen corresponding path program 1 times [2023-11-26 11:56:43,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:43,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193763287] [2023-11-26 11:56:43,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:43,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:44,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:44,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:44,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193763287] [2023-11-26 11:56:44,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193763287] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:44,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:44,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:56:44,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332731270] [2023-11-26 11:56:44,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:44,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:56:44,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:44,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:56:44,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:56:44,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 244 [2023-11-26 11:56:44,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 240 transitions, 512 flow. Second operand has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:44,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:44,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 244 [2023-11-26 11:56:44,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:45,057 INFO L124 PetriNetUnfolderBase]: 220/1068 cut-off events. [2023-11-26 11:56:45,058 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:56:45,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1595 conditions, 1068 events. 220/1068 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5474 event pairs, 220 based on Foata normal form. 0/964 useless extension candidates. Maximal degree in co-relation 1435. Up to 493 conditions per place. [2023-11-26 11:56:45,066 INFO L140 encePairwiseOnDemand]: 226/244 looper letters, 52 selfloop transitions, 15 changer transitions 0/237 dead transitions. [2023-11-26 11:56:45,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 237 transitions, 640 flow [2023-11-26 11:56:45,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:56:45,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:56:45,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1114 transitions. [2023-11-26 11:56:45,071 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7609289617486339 [2023-11-26 11:56:45,072 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1114 transitions. [2023-11-26 11:56:45,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1114 transitions. [2023-11-26 11:56:45,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:45,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1114 transitions. [2023-11-26 11:56:45,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 185.66666666666666) internal successors, (1114), 6 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:45,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:45,083 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:45,083 INFO L175 Difference]: Start difference. First operand has 248 places, 240 transitions, 512 flow. Second operand 6 states and 1114 transitions. [2023-11-26 11:56:45,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 237 transitions, 640 flow [2023-11-26 11:56:45,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 237 transitions, 610 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:56:45,096 INFO L231 Difference]: Finished difference. Result has 245 places, 237 transitions, 506 flow [2023-11-26 11:56:45,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=506, PETRI_PLACES=245, PETRI_TRANSITIONS=237} [2023-11-26 11:56:45,097 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, -2 predicate places. [2023-11-26 11:56:45,098 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 237 transitions, 506 flow [2023-11-26 11:56:45,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.33333333333334) internal successors, (1052), 6 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:45,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:45,103 INFO L208 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] [2023-11-26 11:56:45,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:56:45,104 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 11:56:45,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:45,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1012242707, now seen corresponding path program 1 times [2023-11-26 11:56:45,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:45,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219888780] [2023-11-26 11:56:45,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:45,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:45,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:45,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:45,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219888780] [2023-11-26 11:56:45,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219888780] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:45,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:45,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:45,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632613797] [2023-11-26 11:56:45,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:45,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:45,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:45,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:45,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:45,232 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 244 [2023-11-26 11:56:45,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 237 transitions, 506 flow. Second operand has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:45,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:45,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 244 [2023-11-26 11:56:45,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:45,312 INFO L124 PetriNetUnfolderBase]: 16/376 cut-off events. [2023-11-26 11:56:45,312 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:56:45,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 376 events. 16/376 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 783 event pairs, 16 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 296. Up to 47 conditions per place. [2023-11-26 11:56:45,315 INFO L140 encePairwiseOnDemand]: 241/244 looper letters, 14 selfloop transitions, 2 changer transitions 0/236 dead transitions. [2023-11-26 11:56:45,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 236 transitions, 536 flow [2023-11-26 11:56:45,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:45,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:56:45,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 698 transitions. [2023-11-26 11:56:45,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.953551912568306 [2023-11-26 11:56:45,318 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 698 transitions. [2023-11-26 11:56:45,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 698 transitions. [2023-11-26 11:56:45,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:45,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 698 transitions. [2023-11-26 11:56:45,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.66666666666666) internal successors, (698), 3 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:45,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:45,325 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:45,325 INFO L175 Difference]: Start difference. First operand has 245 places, 237 transitions, 506 flow. Second operand 3 states and 698 transitions. [2023-11-26 11:56:45,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 236 transitions, 536 flow [2023-11-26 11:56:45,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 236 transitions, 506 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:56:45,333 INFO L231 Difference]: Finished difference. Result has 241 places, 236 transitions, 478 flow [2023-11-26 11:56:45,334 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=241, PETRI_TRANSITIONS=236} [2023-11-26 11:56:45,336 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, -6 predicate places. [2023-11-26 11:56:45,336 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 236 transitions, 478 flow [2023-11-26 11:56:45,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:45,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:45,337 INFO L208 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] [2023-11-26 11:56:45,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:56:45,339 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 11:56:45,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:45,340 INFO L85 PathProgramCache]: Analyzing trace with hash 2005674951, now seen corresponding path program 1 times [2023-11-26 11:56:45,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:45,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439571387] [2023-11-26 11:56:45,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:45,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:45,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:45,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:45,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439571387] [2023-11-26 11:56:45,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439571387] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:45,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:45,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:45,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488881694] [2023-11-26 11:56:45,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:45,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:45,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:45,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:45,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:45,441 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 244 [2023-11-26 11:56:45,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 236 transitions, 478 flow. Second operand has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:45,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:45,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 244 [2023-11-26 11:56:45,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:45,529 INFO L124 PetriNetUnfolderBase]: 24/451 cut-off events. [2023-11-26 11:56:45,530 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 11:56:45,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 451 events. 24/451 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1232 event pairs, 24 based on Foata normal form. 0/418 useless extension candidates. Maximal degree in co-relation 461. Up to 63 conditions per place. [2023-11-26 11:56:45,533 INFO L140 encePairwiseOnDemand]: 238/244 looper letters, 15 selfloop transitions, 1 changer transitions 0/231 dead transitions. [2023-11-26 11:56:45,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 231 transitions, 500 flow [2023-11-26 11:56:45,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:45,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:56:45,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 690 transitions. [2023-11-26 11:56:45,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9426229508196722 [2023-11-26 11:56:45,554 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 690 transitions. [2023-11-26 11:56:45,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 690 transitions. [2023-11-26 11:56:45,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:45,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 690 transitions. [2023-11-26 11:56:45,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:45,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:45,561 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:45,561 INFO L175 Difference]: Start difference. First operand has 241 places, 236 transitions, 478 flow. Second operand 3 states and 690 transitions. [2023-11-26 11:56:45,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 231 transitions, 500 flow [2023-11-26 11:56:45,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 231 transitions, 496 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:56:45,568 INFO L231 Difference]: Finished difference. Result has 236 places, 231 transitions, 466 flow [2023-11-26 11:56:45,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=466, PETRI_PLACES=236, PETRI_TRANSITIONS=231} [2023-11-26 11:56:45,570 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, -11 predicate places. [2023-11-26 11:56:45,570 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 231 transitions, 466 flow [2023-11-26 11:56:45,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:45,571 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:45,572 INFO L208 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] [2023-11-26 11:56:45,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:56:45,572 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 11:56:45,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:45,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1703256098, now seen corresponding path program 1 times [2023-11-26 11:56:45,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:45,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758544612] [2023-11-26 11:56:45,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:45,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:46,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:46,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:46,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758544612] [2023-11-26 11:56:46,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758544612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:46,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:46,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:56:46,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450034784] [2023-11-26 11:56:46,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:46,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:56:46,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:46,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:56:46,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:56:46,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 244 [2023-11-26 11:56:46,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 231 transitions, 466 flow. Second operand has 6 states, 6 states have (on average 176.16666666666666) internal successors, (1057), 6 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:46,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:46,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 244 [2023-11-26 11:56:46,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:47,038 INFO L124 PetriNetUnfolderBase]: 288/1207 cut-off events. [2023-11-26 11:56:47,039 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:56:47,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1860 conditions, 1207 events. 288/1207 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6475 event pairs, 288 based on Foata normal form. 0/1146 useless extension candidates. Maximal degree in co-relation 1789. Up to 643 conditions per place. [2023-11-26 11:56:47,047 INFO L140 encePairwiseOnDemand]: 238/244 looper letters, 66 selfloop transitions, 5 changer transitions 0/230 dead transitions. [2023-11-26 11:56:47,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 230 transitions, 606 flow [2023-11-26 11:56:47,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:56:47,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:56:47,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1104 transitions. [2023-11-26 11:56:47,053 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7540983606557377 [2023-11-26 11:56:47,053 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1104 transitions. [2023-11-26 11:56:47,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1104 transitions. [2023-11-26 11:56:47,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:47,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1104 transitions. [2023-11-26 11:56:47,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:47,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:47,063 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:47,063 INFO L175 Difference]: Start difference. First operand has 236 places, 231 transitions, 466 flow. Second operand 6 states and 1104 transitions. [2023-11-26 11:56:47,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 230 transitions, 606 flow [2023-11-26 11:56:47,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 230 transitions, 605 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:56:47,070 INFO L231 Difference]: Finished difference. Result has 239 places, 230 transitions, 473 flow [2023-11-26 11:56:47,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=473, PETRI_PLACES=239, PETRI_TRANSITIONS=230} [2023-11-26 11:56:47,073 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, -8 predicate places. [2023-11-26 11:56:47,074 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 230 transitions, 473 flow [2023-11-26 11:56:47,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.16666666666666) internal successors, (1057), 6 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:47,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:47,075 INFO L208 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, 1, 1] [2023-11-26 11:56:47,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:56:47,075 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 11:56:47,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:47,076 INFO L85 PathProgramCache]: Analyzing trace with hash 718099715, now seen corresponding path program 1 times [2023-11-26 11:56:47,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:47,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542022382] [2023-11-26 11:56:47,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:47,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:47,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:47,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:47,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542022382] [2023-11-26 11:56:47,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542022382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:47,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:47,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:47,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549141480] [2023-11-26 11:56:47,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:47,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:47,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:47,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:47,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:47,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 244 [2023-11-26 11:56:47,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 230 transitions, 473 flow. Second operand has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:47,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:47,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 244 [2023-11-26 11:56:47,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:47,237 INFO L124 PetriNetUnfolderBase]: 6/295 cut-off events. [2023-11-26 11:56:47,238 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:56:47,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 295 events. 6/295 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 400 event pairs, 6 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 269. Up to 23 conditions per place. [2023-11-26 11:56:47,240 INFO L140 encePairwiseOnDemand]: 241/244 looper letters, 10 selfloop transitions, 2 changer transitions 0/229 dead transitions. [2023-11-26 11:56:47,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 229 transitions, 495 flow [2023-11-26 11:56:47,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:47,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:56:47,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 706 transitions. [2023-11-26 11:56:47,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9644808743169399 [2023-11-26 11:56:47,243 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 706 transitions. [2023-11-26 11:56:47,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 706 transitions. [2023-11-26 11:56:47,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:47,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 706 transitions. [2023-11-26 11:56:47,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:47,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:47,248 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:47,248 INFO L175 Difference]: Start difference. First operand has 239 places, 230 transitions, 473 flow. Second operand 3 states and 706 transitions. [2023-11-26 11:56:47,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 229 transitions, 495 flow [2023-11-26 11:56:47,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 229 transitions, 485 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:56:47,254 INFO L231 Difference]: Finished difference. Result has 235 places, 229 transitions, 465 flow [2023-11-26 11:56:47,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=465, PETRI_PLACES=235, PETRI_TRANSITIONS=229} [2023-11-26 11:56:47,258 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, -12 predicate places. [2023-11-26 11:56:47,258 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 229 transitions, 465 flow [2023-11-26 11:56:47,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:47,259 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:47,259 INFO L208 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, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:47,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:56:47,260 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 11:56:47,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:47,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1428895703, now seen corresponding path program 1 times [2023-11-26 11:56:47,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:47,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199320882] [2023-11-26 11:56:47,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:47,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:47,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:47,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:47,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199320882] [2023-11-26 11:56:47,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199320882] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:47,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:47,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:47,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317261588] [2023-11-26 11:56:47,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:47,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:47,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:47,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:47,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:47,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 244 [2023-11-26 11:56:47,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 229 transitions, 465 flow. Second operand has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:47,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:47,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 244 [2023-11-26 11:56:47,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:47,457 INFO L124 PetriNetUnfolderBase]: 4/292 cut-off events. [2023-11-26 11:56:47,458 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 11:56:47,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 292 events. 4/292 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 262 event pairs, 4 based on Foata normal form. 0/277 useless extension candidates. Maximal degree in co-relation 256. Up to 15 conditions per place. [2023-11-26 11:56:47,460 INFO L140 encePairwiseOnDemand]: 242/244 looper letters, 7 selfloop transitions, 1 changer transitions 0/228 dead transitions. [2023-11-26 11:56:47,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 228 transitions, 479 flow [2023-11-26 11:56:47,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:47,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:56:47,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 714 transitions. [2023-11-26 11:56:47,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9754098360655737 [2023-11-26 11:56:47,464 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 714 transitions. [2023-11-26 11:56:47,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 714 transitions. [2023-11-26 11:56:47,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:47,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 714 transitions. [2023-11-26 11:56:47,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:47,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:47,470 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 244.0) internal successors, (976), 4 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:47,471 INFO L175 Difference]: Start difference. First operand has 235 places, 229 transitions, 465 flow. Second operand 3 states and 714 transitions. [2023-11-26 11:56:47,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 228 transitions, 479 flow [2023-11-26 11:56:47,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 228 transitions, 475 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:56:47,478 INFO L231 Difference]: Finished difference. Result has 234 places, 228 transitions, 461 flow [2023-11-26 11:56:47,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=461, PETRI_PLACES=234, PETRI_TRANSITIONS=228} [2023-11-26 11:56:47,479 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, -13 predicate places. [2023-11-26 11:56:47,479 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 228 transitions, 461 flow [2023-11-26 11:56:47,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:47,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:47,481 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:47,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:56:47,481 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 11:56:47,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:47,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1479849926, now seen corresponding path program 1 times [2023-11-26 11:56:47,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:47,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411165015] [2023-11-26 11:56:47,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:47,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:48,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:48,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:48,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411165015] [2023-11-26 11:56:48,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411165015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:48,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:48,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:56:48,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308232966] [2023-11-26 11:56:48,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:48,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:56:48,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:48,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:56:48,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:56:48,791 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 244 [2023-11-26 11:56:48,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 228 transitions, 461 flow. Second operand has 6 states, 6 states have (on average 185.33333333333334) internal successors, (1112), 6 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:48,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:48,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 244 [2023-11-26 11:56:48,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:49,309 INFO L124 PetriNetUnfolderBase]: 316/1542 cut-off events. [2023-11-26 11:56:49,309 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:56:49,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2282 conditions, 1542 events. 316/1542 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9357 event pairs, 32 based on Foata normal form. 0/1451 useless extension candidates. Maximal degree in co-relation 2212. Up to 388 conditions per place. [2023-11-26 11:56:49,321 INFO L140 encePairwiseOnDemand]: 216/244 looper letters, 107 selfloop transitions, 70 changer transitions 0/340 dead transitions. [2023-11-26 11:56:49,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 340 transitions, 1039 flow [2023-11-26 11:56:49,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:56:49,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:56:49,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1253 transitions. [2023-11-26 11:56:49,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8558743169398907 [2023-11-26 11:56:49,326 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1253 transitions. [2023-11-26 11:56:49,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1253 transitions. [2023-11-26 11:56:49,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:49,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1253 transitions. [2023-11-26 11:56:49,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.83333333333334) internal successors, (1253), 6 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:49,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:49,336 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:49,337 INFO L175 Difference]: Start difference. First operand has 234 places, 228 transitions, 461 flow. Second operand 6 states and 1253 transitions. [2023-11-26 11:56:49,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 340 transitions, 1039 flow [2023-11-26 11:56:49,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 340 transitions, 1038 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:56:49,346 INFO L231 Difference]: Finished difference. Result has 242 places, 298 transitions, 938 flow [2023-11-26 11:56:49,347 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=938, PETRI_PLACES=242, PETRI_TRANSITIONS=298} [2023-11-26 11:56:49,348 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, -5 predicate places. [2023-11-26 11:56:49,348 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 298 transitions, 938 flow [2023-11-26 11:56:49,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.33333333333334) internal successors, (1112), 6 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:49,349 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:49,349 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:49,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:56:49,350 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 11:56:49,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:49,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1600637177, now seen corresponding path program 1 times [2023-11-26 11:56:49,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:49,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605615732] [2023-11-26 11:56:49,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:49,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:50,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:50,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:50,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605615732] [2023-11-26 11:56:50,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605615732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:50,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:50,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:56:50,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181596032] [2023-11-26 11:56:50,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:50,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:56:50,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:50,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:56:50,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:56:50,548 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 244 [2023-11-26 11:56:50,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 298 transitions, 938 flow. Second operand has 6 states, 6 states have (on average 186.16666666666666) internal successors, (1117), 6 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:50,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:50,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 244 [2023-11-26 11:56:50,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:51,283 INFO L124 PetriNetUnfolderBase]: 588/2330 cut-off events. [2023-11-26 11:56:51,283 INFO L125 PetriNetUnfolderBase]: For 609/615 co-relation queries the response was YES. [2023-11-26 11:56:51,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4728 conditions, 2330 events. 588/2330 cut-off events. For 609/615 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 15507 event pairs, 222 based on Foata normal form. 0/2221 useless extension candidates. Maximal degree in co-relation 4656. Up to 1090 conditions per place. [2023-11-26 11:56:51,306 INFO L140 encePairwiseOnDemand]: 229/244 looper letters, 114 selfloop transitions, 48 changer transitions 0/349 dead transitions. [2023-11-26 11:56:51,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 349 transitions, 1434 flow [2023-11-26 11:56:51,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:56:51,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:56:51,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1190 transitions. [2023-11-26 11:56:51,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8128415300546448 [2023-11-26 11:56:51,311 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1190 transitions. [2023-11-26 11:56:51,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1190 transitions. [2023-11-26 11:56:51,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:51,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1190 transitions. [2023-11-26 11:56:51,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,321 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,321 INFO L175 Difference]: Start difference. First operand has 242 places, 298 transitions, 938 flow. Second operand 6 states and 1190 transitions. [2023-11-26 11:56:51,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 349 transitions, 1434 flow [2023-11-26 11:56:51,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 349 transitions, 1434 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:56:51,343 INFO L231 Difference]: Finished difference. Result has 252 places, 341 transitions, 1326 flow [2023-11-26 11:56:51,343 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1326, PETRI_PLACES=252, PETRI_TRANSITIONS=341} [2023-11-26 11:56:51,345 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 5 predicate places. [2023-11-26 11:56:51,345 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 341 transitions, 1326 flow [2023-11-26 11:56:51,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.16666666666666) internal successors, (1117), 6 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:51,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:51,347 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:51,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:56:51,348 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 11:56:51,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:51,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1634965321, now seen corresponding path program 1 times [2023-11-26 11:56:51,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:51,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480440202] [2023-11-26 11:56:51,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:51,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:52,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:52,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:52,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480440202] [2023-11-26 11:56:52,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480440202] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:52,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:52,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:56:52,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990274975] [2023-11-26 11:56:52,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:52,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:56:52,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:52,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:56:52,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:56:52,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 244 [2023-11-26 11:56:52,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 341 transitions, 1326 flow. Second operand has 6 states, 6 states have (on average 191.33333333333334) internal successors, (1148), 6 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:52,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:52,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 244 [2023-11-26 11:56:52,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:53,435 INFO L124 PetriNetUnfolderBase]: 754/2875 cut-off events. [2023-11-26 11:56:53,435 INFO L125 PetriNetUnfolderBase]: For 1630/1686 co-relation queries the response was YES. [2023-11-26 11:56:53,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6642 conditions, 2875 events. 754/2875 cut-off events. For 1630/1686 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 20297 event pairs, 86 based on Foata normal form. 0/2779 useless extension candidates. Maximal degree in co-relation 6563. Up to 1017 conditions per place. [2023-11-26 11:56:53,463 INFO L140 encePairwiseOnDemand]: 221/244 looper letters, 136 selfloop transitions, 136 changer transitions 4/481 dead transitions. [2023-11-26 11:56:53,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 481 transitions, 2634 flow [2023-11-26 11:56:53,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:56:53,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:56:53,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1248 transitions. [2023-11-26 11:56:53,468 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8524590163934426 [2023-11-26 11:56:53,468 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1248 transitions. [2023-11-26 11:56:53,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1248 transitions. [2023-11-26 11:56:53,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:53,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1248 transitions. [2023-11-26 11:56:53,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.0) internal successors, (1248), 6 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,479 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,479 INFO L175 Difference]: Start difference. First operand has 252 places, 341 transitions, 1326 flow. Second operand 6 states and 1248 transitions. [2023-11-26 11:56:53,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 481 transitions, 2634 flow [2023-11-26 11:56:53,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 481 transitions, 2616 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-11-26 11:56:53,505 INFO L231 Difference]: Finished difference. Result has 262 places, 472 transitions, 2674 flow [2023-11-26 11:56:53,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=1308, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2674, PETRI_PLACES=262, PETRI_TRANSITIONS=472} [2023-11-26 11:56:53,508 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 15 predicate places. [2023-11-26 11:56:53,508 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 472 transitions, 2674 flow [2023-11-26 11:56:53,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.33333333333334) internal successors, (1148), 6 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:53,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:53,510 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:53,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:56:53,510 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 11:56:53,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:53,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1276534900, now seen corresponding path program 1 times [2023-11-26 11:56:53,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:53,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967190194] [2023-11-26 11:56:53,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:53,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:54,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:54,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:54,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967190194] [2023-11-26 11:56:54,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967190194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:54,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:54,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:56:54,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083492582] [2023-11-26 11:56:54,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:54,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:56:54,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:54,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:56:54,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:56:54,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 244 [2023-11-26 11:56:54,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 472 transitions, 2674 flow. Second operand has 6 states, 6 states have (on average 186.16666666666666) internal successors, (1117), 6 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:54,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:56:54,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 244 [2023-11-26 11:56:54,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:56:55,545 INFO L124 PetriNetUnfolderBase]: 968/3455 cut-off events. [2023-11-26 11:56:55,545 INFO L125 PetriNetUnfolderBase]: For 3841/3912 co-relation queries the response was YES. [2023-11-26 11:56:55,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9696 conditions, 3455 events. 968/3455 cut-off events. For 3841/3912 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 25090 event pairs, 207 based on Foata normal form. 0/3377 useless extension candidates. Maximal degree in co-relation 9614. Up to 1565 conditions per place. [2023-11-26 11:56:55,588 INFO L140 encePairwiseOnDemand]: 229/244 looper letters, 239 selfloop transitions, 62 changer transitions 0/529 dead transitions. [2023-11-26 11:56:55,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 529 transitions, 3618 flow [2023-11-26 11:56:55,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:56:55,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:56:55,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1190 transitions. [2023-11-26 11:56:55,592 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8128415300546448 [2023-11-26 11:56:55,592 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1190 transitions. [2023-11-26 11:56:55,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1190 transitions. [2023-11-26 11:56:55,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:56:55,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1190 transitions. [2023-11-26 11:56:55,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:55,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:55,602 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 244.0) internal successors, (1708), 7 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:55,602 INFO L175 Difference]: Start difference. First operand has 262 places, 472 transitions, 2674 flow. Second operand 6 states and 1190 transitions. [2023-11-26 11:56:55,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 529 transitions, 3618 flow [2023-11-26 11:56:55,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 529 transitions, 3582 flow, removed 18 selfloop flow, removed 0 redundant places. [2023-11-26 11:56:55,648 INFO L231 Difference]: Finished difference. Result has 272 places, 521 transitions, 3264 flow [2023-11-26 11:56:55,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=2638, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3264, PETRI_PLACES=272, PETRI_TRANSITIONS=521} [2023-11-26 11:56:55,650 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 25 predicate places. [2023-11-26 11:56:55,650 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 521 transitions, 3264 flow [2023-11-26 11:56:55,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.16666666666666) internal successors, (1117), 6 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:56:55,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:56:55,651 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:55,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:56:55,651 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 11:56:55,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:55,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1859311886, now seen corresponding path program 1 times [2023-11-26 11:56:55,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:55,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721394792] [2023-11-26 11:56:55,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:55,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:57,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:57,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:57,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721394792] [2023-11-26 11:56:57,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721394792] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:57,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:57,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 11:56:57,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506330514] [2023-11-26 11:56:57,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:57,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 11:56:57,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:57,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 11:56:57,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:57:00,157 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-26 11:57:00,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 521 transitions, 3264 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:00,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:57:00,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-26 11:57:00,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:03,071 INFO L124 PetriNetUnfolderBase]: 1622/5490 cut-off events. [2023-11-26 11:57:03,071 INFO L125 PetriNetUnfolderBase]: For 9653/9728 co-relation queries the response was YES. [2023-11-26 11:57:03,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17170 conditions, 5490 events. 1622/5490 cut-off events. For 9653/9728 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 45324 event pairs, 96 based on Foata normal form. 48/5457 useless extension candidates. Maximal degree in co-relation 17078. Up to 1060 conditions per place. [2023-11-26 11:57:03,147 INFO L140 encePairwiseOnDemand]: 210/244 looper letters, 553 selfloop transitions, 237 changer transitions 4/990 dead transitions. [2023-11-26 11:57:03,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 990 transitions, 8566 flow [2023-11-26 11:57:03,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-26 11:57:03,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-11-26 11:57:03,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4805 transitions. [2023-11-26 11:57:03,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7293564055859137 [2023-11-26 11:57:03,165 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4805 transitions. [2023-11-26 11:57:03,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4805 transitions. [2023-11-26 11:57:03,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:03,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4805 transitions. [2023-11-26 11:57:03,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 177.96296296296296) internal successors, (4805), 27 states have internal predecessors, (4805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:03,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 244.0) internal successors, (6832), 28 states have internal predecessors, (6832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:03,209 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 244.0) internal successors, (6832), 28 states have internal predecessors, (6832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:03,209 INFO L175 Difference]: Start difference. First operand has 272 places, 521 transitions, 3264 flow. Second operand 27 states and 4805 transitions. [2023-11-26 11:57:03,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 990 transitions, 8566 flow [2023-11-26 11:57:03,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 990 transitions, 8412 flow, removed 77 selfloop flow, removed 0 redundant places. [2023-11-26 11:57:03,322 INFO L231 Difference]: Finished difference. Result has 311 places, 706 transitions, 5759 flow [2023-11-26 11:57:03,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=3152, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=5759, PETRI_PLACES=311, PETRI_TRANSITIONS=706} [2023-11-26 11:57:03,324 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 64 predicate places. [2023-11-26 11:57:03,324 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 706 transitions, 5759 flow [2023-11-26 11:57:03,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:03,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:57:03,325 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:03,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:57:03,325 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 11:57:03,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:03,326 INFO L85 PathProgramCache]: Analyzing trace with hash -820008796, now seen corresponding path program 2 times [2023-11-26 11:57:03,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:03,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692885019] [2023-11-26 11:57:03,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:03,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:04,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:04,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:04,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692885019] [2023-11-26 11:57:04,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692885019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:04,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:04,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 11:57:04,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253132255] [2023-11-26 11:57:04,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:04,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 11:57:04,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:04,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 11:57:04,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:57:06,549 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-26 11:57:06,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 706 transitions, 5759 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:06,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:57:06,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-26 11:57:06,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:09,874 INFO L124 PetriNetUnfolderBase]: 2344/7987 cut-off events. [2023-11-26 11:57:09,874 INFO L125 PetriNetUnfolderBase]: For 20367/20572 co-relation queries the response was YES. [2023-11-26 11:57:09,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27414 conditions, 7987 events. 2344/7987 cut-off events. For 20367/20572 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 74351 event pairs, 182 based on Foata normal form. 112/7984 useless extension candidates. Maximal degree in co-relation 27305. Up to 1535 conditions per place. [2023-11-26 11:57:09,996 INFO L140 encePairwiseOnDemand]: 205/244 looper letters, 553 selfloop transitions, 350 changer transitions 6/1105 dead transitions. [2023-11-26 11:57:09,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 1105 transitions, 11007 flow [2023-11-26 11:57:09,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-26 11:57:09,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-26 11:57:10,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3670 transitions. [2023-11-26 11:57:10,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7520491803278688 [2023-11-26 11:57:10,009 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3670 transitions. [2023-11-26 11:57:10,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3670 transitions. [2023-11-26 11:57:10,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:10,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3670 transitions. [2023-11-26 11:57:10,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 183.5) internal successors, (3670), 20 states have internal predecessors, (3670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:10,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 244.0) internal successors, (5124), 21 states have internal predecessors, (5124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:10,037 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 244.0) internal successors, (5124), 21 states have internal predecessors, (5124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:10,037 INFO L175 Difference]: Start difference. First operand has 311 places, 706 transitions, 5759 flow. Second operand 20 states and 3670 transitions. [2023-11-26 11:57:10,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 1105 transitions, 11007 flow [2023-11-26 11:57:10,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 1105 transitions, 10939 flow, removed 32 selfloop flow, removed 2 redundant places. [2023-11-26 11:57:10,441 INFO L231 Difference]: Finished difference. Result has 345 places, 841 transitions, 8826 flow [2023-11-26 11:57:10,442 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=5709, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=706, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8826, PETRI_PLACES=345, PETRI_TRANSITIONS=841} [2023-11-26 11:57:10,443 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 98 predicate places. [2023-11-26 11:57:10,443 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 841 transitions, 8826 flow [2023-11-26 11:57:10,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:10,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:57:10,445 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:10,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:57:10,445 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 11:57:10,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:10,446 INFO L85 PathProgramCache]: Analyzing trace with hash -952803214, now seen corresponding path program 3 times [2023-11-26 11:57:10,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:10,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917754366] [2023-11-26 11:57:10,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:10,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:11,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:11,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:11,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917754366] [2023-11-26 11:57:11,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917754366] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:11,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:11,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 11:57:11,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471934366] [2023-11-26 11:57:11,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:11,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 11:57:11,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:11,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 11:57:11,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:57:13,530 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 244 [2023-11-26 11:57:13,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 841 transitions, 8826 flow. Second operand has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:13,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:57:13,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 244 [2023-11-26 11:57:13,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:57:17,217 INFO L124 PetriNetUnfolderBase]: 2414/8121 cut-off events. [2023-11-26 11:57:17,218 INFO L125 PetriNetUnfolderBase]: For 32382/32684 co-relation queries the response was YES. [2023-11-26 11:57:17,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30978 conditions, 8121 events. 2414/8121 cut-off events. For 32382/32684 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 75466 event pairs, 134 based on Foata normal form. 162/8176 useless extension candidates. Maximal degree in co-relation 30895. Up to 1559 conditions per place. [2023-11-26 11:57:17,312 INFO L140 encePairwiseOnDemand]: 217/244 looper letters, 671 selfloop transitions, 240 changer transitions 4/1111 dead transitions. [2023-11-26 11:57:17,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 1111 transitions, 13106 flow [2023-11-26 11:57:17,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-26 11:57:17,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-11-26 11:57:17,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4588 transitions. [2023-11-26 11:57:17,323 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.723203026481715 [2023-11-26 11:57:17,323 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 4588 transitions. [2023-11-26 11:57:17,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 4588 transitions. [2023-11-26 11:57:17,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:57:17,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 4588 transitions. [2023-11-26 11:57:17,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 176.46153846153845) internal successors, (4588), 26 states have internal predecessors, (4588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:17,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 244.0) internal successors, (6588), 27 states have internal predecessors, (6588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:17,351 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 244.0) internal successors, (6588), 27 states have internal predecessors, (6588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:17,351 INFO L175 Difference]: Start difference. First operand has 345 places, 841 transitions, 8826 flow. Second operand 26 states and 4588 transitions. [2023-11-26 11:57:17,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 1111 transitions, 13106 flow [2023-11-26 11:57:17,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 1111 transitions, 13046 flow, removed 28 selfloop flow, removed 2 redundant places. [2023-11-26 11:57:17,715 INFO L231 Difference]: Finished difference. Result has 377 places, 906 transitions, 10319 flow [2023-11-26 11:57:17,716 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=8774, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=841, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=623, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=10319, PETRI_PLACES=377, PETRI_TRANSITIONS=906} [2023-11-26 11:57:17,717 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, 130 predicate places. [2023-11-26 11:57:17,717 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 906 transitions, 10319 flow [2023-11-26 11:57:17,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 169.69230769230768) internal successors, (2206), 13 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:57:17,718 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:57:17,718 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:57:17,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:57:17,719 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 11:57:17,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:57:17,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1824607934, now seen corresponding path program 4 times [2023-11-26 11:57:17,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:57:17,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658102824] [2023-11-26 11:57:17,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:57:17,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:57:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:57:19,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:57:19,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:57:19,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658102824] [2023-11-26 11:57:19,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658102824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:57:19,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:57:19,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 11:57:19,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180455797] [2023-11-26 11:57:19,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:57:19,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 11:57:19,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:19,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 11:57:19,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156