./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2968a2e0-e991-4479-bb69-706a2a56195a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2968a2e0-e991-4479-bb69-706a2a56195a/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2968a2e0-e991-4479-bb69-706a2a56195a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2968a2e0-e991-4479-bb69-706a2a56195a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2968a2e0-e991-4479-bb69-706a2a56195a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2968a2e0-e991-4479-bb69-706a2a56195a/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:01:39,105 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:01:39,235 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2968a2e0-e991-4479-bb69-706a2a56195a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 23:01:39,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:01:39,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:01:39,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:01:39,286 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:01:39,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:01:39,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:01:39,293 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:01:39,294 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:01:39,295 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:01:39,296 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:01:39,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:01:39,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:01:39,299 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:01:39,299 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:01:39,300 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:01:39,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:01:39,301 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:01:39,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:01:39,302 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:01:39,303 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 23:01:39,303 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:01:39,304 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:01:39,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:01:39,305 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:01:39,306 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:01:39,306 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:01:39,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:01:39,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:01:39,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:01:39,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:01:39,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:01:39,310 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:01:39,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:01:39,311 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:01:39,311 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:01:39,311 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:01:39,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:01:39,312 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:01:39,313 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_2968a2e0-e991-4479-bb69-706a2a56195a/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2968a2e0-e991-4479-bb69-706a2a56195a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 [2023-11-06 23:01:39,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:01:39,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:01:39,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:01:39,697 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:01:39,698 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:01:39,699 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2968a2e0-e991-4479-bb69-706a2a56195a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2023-11-06 23:01:42,953 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:01:43,317 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:01:43,317 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2968a2e0-e991-4479-bb69-706a2a56195a/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2023-11-06 23:01:43,352 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2968a2e0-e991-4479-bb69-706a2a56195a/bin/uautomizer-verify-WvqO1wxjHP/data/62507626e/ad4fc20545214ff88a5953df18373a3e/FLAGd81fe54e3 [2023-11-06 23:01:43,377 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2968a2e0-e991-4479-bb69-706a2a56195a/bin/uautomizer-verify-WvqO1wxjHP/data/62507626e/ad4fc20545214ff88a5953df18373a3e [2023-11-06 23:01:43,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:01:43,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:01:43,385 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:01:43,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:01:43,395 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:01:43,396 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:01:43" (1/1) ... [2023-11-06 23:01:43,397 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b9aed1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:43, skipping insertion in model container [2023-11-06 23:01:43,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:01:43" (1/1) ... [2023-11-06 23:01:43,469 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:01:44,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:01:44,088 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:01:44,170 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:01:44,281 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:01:44,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:44 WrapperNode [2023-11-06 23:01:44,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:01:44,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:01:44,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:01:44,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:01:44,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:44" (1/1) ... [2023-11-06 23:01:44,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:44" (1/1) ... [2023-11-06 23:01:44,381 INFO L138 Inliner]: procedures = 370, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 235 [2023-11-06 23:01:44,382 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:01:44,383 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:01:44,383 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:01:44,383 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:01:44,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:44" (1/1) ... [2023-11-06 23:01:44,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:44" (1/1) ... [2023-11-06 23:01:44,403 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:44" (1/1) ... [2023-11-06 23:01:44,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:44" (1/1) ... [2023-11-06 23:01:44,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:44" (1/1) ... [2023-11-06 23:01:44,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:44" (1/1) ... [2023-11-06 23:01:44,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:44" (1/1) ... [2023-11-06 23:01:44,440 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:44" (1/1) ... [2023-11-06 23:01:44,446 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:01:44,447 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:01:44,447 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:01:44,447 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:01:44,448 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:44" (1/1) ... [2023-11-06 23:01:44,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:01:44,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2968a2e0-e991-4479-bb69-706a2a56195a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:01:44,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2968a2e0-e991-4479-bb69-706a2a56195a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:01:44,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2968a2e0-e991-4479-bb69-706a2a56195a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:01:44,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:01:44,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 23:01:44,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:01:44,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 23:01:44,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:01:44,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:01:44,566 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 23:01:44,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 23:01:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:01:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 23:01:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 23:01:44,567 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 23:01:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:01:44,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:01:44,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:01:44,569 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 23:01:44,724 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:01:44,725 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:01:45,402 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:01:45,421 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:01:45,426 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:01:45,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:01:45 BoogieIcfgContainer [2023-11-06 23:01:45,430 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:01:45,435 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:01:45,435 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:01:45,439 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:01:45,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:01:43" (1/3) ... [2023-11-06 23:01:45,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e4546e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:01:45, skipping insertion in model container [2023-11-06 23:01:45,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:01:44" (2/3) ... [2023-11-06 23:01:45,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e4546e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:01:45, skipping insertion in model container [2023-11-06 23:01:45,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:01:45" (3/3) ... [2023-11-06 23:01:45,445 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2023-11-06 23:01:45,455 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 23:01:45,467 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:01:45,468 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-06 23:01:45,468 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 23:01:45,625 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 23:01:45,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 270 transitions, 544 flow [2023-11-06 23:01:45,857 INFO L124 PetriNetUnfolderBase]: 2/269 cut-off events. [2023-11-06 23:01:45,857 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:01:45,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 269 events. 2/269 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 257 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 199. Up to 2 conditions per place. [2023-11-06 23:01:45,866 INFO L82 GeneralOperation]: Start removeDead. Operand has 272 places, 270 transitions, 544 flow [2023-11-06 23:01:45,882 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 271 places, 269 transitions, 541 flow [2023-11-06 23:01:45,887 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:01:45,907 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 271 places, 269 transitions, 541 flow [2023-11-06 23:01:45,911 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 271 places, 269 transitions, 541 flow [2023-11-06 23:01:45,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 271 places, 269 transitions, 541 flow [2023-11-06 23:01:46,014 INFO L124 PetriNetUnfolderBase]: 2/269 cut-off events. [2023-11-06 23:01:46,014 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:01:46,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 269 events. 2/269 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 257 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 199. Up to 2 conditions per place. [2023-11-06 23:01:46,032 INFO L119 LiptonReduction]: Number of co-enabled transitions 19488 [2023-11-06 23:02:34,054 WARN L293 SmtUtils]: Spent 34.26s on a formula simplification. DAG size of input: 143 DAG size of output: 137 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:02:41,090 WARN L293 SmtUtils]: Spent 7.03s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:03:12,771 WARN L293 SmtUtils]: Spent 31.68s on a formula simplification. DAG size of input: 143 DAG size of output: 137 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:03:18,013 WARN L293 SmtUtils]: Spent 5.24s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:03:32,055 INFO L134 LiptonReduction]: Checked pairs total: 145672 [2023-11-06 23:03:32,055 INFO L136 LiptonReduction]: Total number of compositions: 154 [2023-11-06 23:03:32,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:03:32,076 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@10de7a6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:03:32,077 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-06 23:03:32,079 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:03:32,079 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 23:03:32,079 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:03:32,079 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:03:32,080 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 23:03:32,080 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:03:32,086 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:32,086 INFO L85 PathProgramCache]: Analyzing trace with hash 823, now seen corresponding path program 1 times [2023-11-06 23:03:32,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:03:32,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518563298] [2023-11-06 23:03:32,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:32,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:03:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:03:32,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:03:32,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:03:32,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518563298] [2023-11-06 23:03:32,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518563298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:03:32,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:03:32,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 23:03:32,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694317899] [2023-11-06 23:03:32,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:03:32,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 23:03:32,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:03:32,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:03:32,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:03:32,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 424 [2023-11-06 23:03:32,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 132 transitions, 267 flow. Second operand has 2 states, 2 states have (on average 268.5) internal successors, (537), 2 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:32,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:03:32,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 424 [2023-11-06 23:03:32,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:03:32,829 INFO L124 PetriNetUnfolderBase]: 419/1821 cut-off events. [2023-11-06 23:03:32,830 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:03:32,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2686 conditions, 1821 events. 419/1821 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 12069 event pairs, 399 based on Foata normal form. 20/1770 useless extension candidates. Maximal degree in co-relation 2677. Up to 861 conditions per place. [2023-11-06 23:03:32,846 INFO L140 encePairwiseOnDemand]: 419/424 looper letters, 43 selfloop transitions, 0 changer transitions 0/127 dead transitions. [2023-11-06 23:03:32,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 127 transitions, 343 flow [2023-11-06 23:03:32,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:03:32,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 23:03:32,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 584 transitions. [2023-11-06 23:03:32,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6886792452830188 [2023-11-06 23:03:32,870 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 584 transitions. [2023-11-06 23:03:32,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 584 transitions. [2023-11-06 23:03:32,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:03:32,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 584 transitions. [2023-11-06 23:03:32,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 292.0) internal successors, (584), 2 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:32,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 424.0) internal successors, (1272), 3 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:32,892 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 424.0) internal successors, (1272), 3 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:32,894 INFO L175 Difference]: Start difference. First operand has 134 places, 132 transitions, 267 flow. Second operand 2 states and 584 transitions. [2023-11-06 23:03:32,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 127 transitions, 343 flow [2023-11-06 23:03:32,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 127 transitions, 342 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:03:32,904 INFO L231 Difference]: Finished difference. Result has 130 places, 127 transitions, 256 flow [2023-11-06 23:03:32,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=256, PETRI_PLACES=130, PETRI_TRANSITIONS=127} [2023-11-06 23:03:32,911 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, -4 predicate places. [2023-11-06 23:03:32,911 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 127 transitions, 256 flow [2023-11-06 23:03:32,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 268.5) internal successors, (537), 2 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:32,913 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:03:32,913 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:03:32,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:03:32,913 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:03:32,924 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:32,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1203604938, now seen corresponding path program 1 times [2023-11-06 23:03:32,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:03:32,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380043636] [2023-11-06 23:03:32,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:32,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:03:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:03:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:03:33,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:03:33,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380043636] [2023-11-06 23:03:33,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380043636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:03:33,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:03:33,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:03:33,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847978271] [2023-11-06 23:03:33,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:03:33,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:03:33,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:03:33,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:03:33,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:03:34,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 424 [2023-11-06 23:03:34,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 127 transitions, 256 flow. Second operand has 6 states, 6 states have (on average 183.5) internal successors, (1101), 6 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:34,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:03:34,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 424 [2023-11-06 23:03:34,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:03:36,154 INFO L124 PetriNetUnfolderBase]: 2494/5694 cut-off events. [2023-11-06 23:03:36,155 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:03:36,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10744 conditions, 5694 events. 2494/5694 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 34358 event pairs, 2082 based on Foata normal form. 0/5561 useless extension candidates. Maximal degree in co-relation 10741. Up to 4802 conditions per place. [2023-11-06 23:03:36,194 INFO L140 encePairwiseOnDemand]: 390/424 looper letters, 162 selfloop transitions, 117 changer transitions 0/307 dead transitions. [2023-11-06 23:03:36,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 307 transitions, 1174 flow [2023-11-06 23:03:36,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:03:36,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 23:03:36,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1372 transitions. [2023-11-06 23:03:36,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.539308176100629 [2023-11-06 23:03:36,203 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1372 transitions. [2023-11-06 23:03:36,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1372 transitions. [2023-11-06 23:03:36,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:03:36,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1372 transitions. [2023-11-06 23:03:36,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 228.66666666666666) internal successors, (1372), 6 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:36,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 424.0) internal successors, (2968), 7 states have internal predecessors, (2968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:36,223 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 424.0) internal successors, (2968), 7 states have internal predecessors, (2968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:36,224 INFO L175 Difference]: Start difference. First operand has 130 places, 127 transitions, 256 flow. Second operand 6 states and 1372 transitions. [2023-11-06 23:03:36,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 307 transitions, 1174 flow [2023-11-06 23:03:36,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 307 transitions, 1174 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:03:36,237 INFO L231 Difference]: Finished difference. Result has 139 places, 243 transitions, 908 flow [2023-11-06 23:03:36,243 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=908, PETRI_PLACES=139, PETRI_TRANSITIONS=243} [2023-11-06 23:03:36,244 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 5 predicate places. [2023-11-06 23:03:36,245 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 243 transitions, 908 flow [2023-11-06 23:03:36,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.5) internal successors, (1101), 6 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:36,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:03:36,246 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:03:36,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:03:36,247 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:03:36,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:36,251 INFO L85 PathProgramCache]: Analyzing trace with hash -11222529, now seen corresponding path program 1 times [2023-11-06 23:03:36,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:03:36,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410440096] [2023-11-06 23:03:36,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:36,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:03:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:03:36,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:03:36,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:03:36,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410440096] [2023-11-06 23:03:36,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410440096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:03:36,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:03:36,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:03:36,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351230218] [2023-11-06 23:03:36,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:03:36,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:03:36,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:03:36,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:03:36,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:03:37,288 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 424 [2023-11-06 23:03:37,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 243 transitions, 908 flow. Second operand has 6 states, 6 states have (on average 186.5) internal successors, (1119), 6 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:37,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:03:37,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 424 [2023-11-06 23:03:37,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:03:38,898 INFO L124 PetriNetUnfolderBase]: 2648/6019 cut-off events. [2023-11-06 23:03:38,899 INFO L125 PetriNetUnfolderBase]: For 1133/1156 co-relation queries the response was YES. [2023-11-06 23:03:38,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13708 conditions, 6019 events. 2648/6019 cut-off events. For 1133/1156 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 36696 event pairs, 1883 based on Foata normal form. 0/5873 useless extension candidates. Maximal degree in co-relation 13700. Up to 5024 conditions per place. [2023-11-06 23:03:38,947 INFO L140 encePairwiseOnDemand]: 382/424 looper letters, 269 selfloop transitions, 153 changer transitions 0/467 dead transitions. [2023-11-06 23:03:38,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 467 transitions, 2250 flow [2023-11-06 23:03:38,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:03:38,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 23:03:38,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1433 transitions. [2023-11-06 23:03:38,955 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5632861635220126 [2023-11-06 23:03:38,955 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1433 transitions. [2023-11-06 23:03:38,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1433 transitions. [2023-11-06 23:03:38,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:03:38,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1433 transitions. [2023-11-06 23:03:38,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 238.83333333333334) internal successors, (1433), 6 states have internal predecessors, (1433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:38,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 424.0) internal successors, (2968), 7 states have internal predecessors, (2968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:38,971 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 424.0) internal successors, (2968), 7 states have internal predecessors, (2968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:38,972 INFO L175 Difference]: Start difference. First operand has 139 places, 243 transitions, 908 flow. Second operand 6 states and 1433 transitions. [2023-11-06 23:03:38,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 467 transitions, 2250 flow [2023-11-06 23:03:38,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 467 transitions, 2250 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:03:39,004 INFO L231 Difference]: Finished difference. Result has 148 places, 391 transitions, 1790 flow [2023-11-06 23:03:39,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=908, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1790, PETRI_PLACES=148, PETRI_TRANSITIONS=391} [2023-11-06 23:03:39,006 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 14 predicate places. [2023-11-06 23:03:39,006 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 391 transitions, 1790 flow [2023-11-06 23:03:39,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.5) internal successors, (1119), 6 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:39,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:03:39,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:03:39,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 23:03:39,009 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:03:39,009 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:39,009 INFO L85 PathProgramCache]: Analyzing trace with hash -482495871, now seen corresponding path program 1 times [2023-11-06 23:03:39,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:03:39,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053274678] [2023-11-06 23:03:39,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:39,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:03:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:03:40,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:03:40,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:03:40,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053274678] [2023-11-06 23:03:40,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053274678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:03:40,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:03:40,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:03:40,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646985066] [2023-11-06 23:03:40,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:03:40,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:03:40,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:03:40,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:03:40,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:03:42,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 424 [2023-11-06 23:03:42,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 391 transitions, 1790 flow. Second operand has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:42,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:03:42,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 424 [2023-11-06 23:03:42,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:03:45,112 INFO L124 PetriNetUnfolderBase]: 3769/8514 cut-off events. [2023-11-06 23:03:45,112 INFO L125 PetriNetUnfolderBase]: For 3867/3921 co-relation queries the response was YES. [2023-11-06 23:03:45,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24157 conditions, 8514 events. 3769/8514 cut-off events. For 3867/3921 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 56782 event pairs, 1555 based on Foata normal form. 5/8327 useless extension candidates. Maximal degree in co-relation 24144. Up to 3472 conditions per place. [2023-11-06 23:03:45,190 INFO L140 encePairwiseOnDemand]: 410/424 looper letters, 773 selfloop transitions, 44 changer transitions 0/857 dead transitions. [2023-11-06 23:03:45,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 857 transitions, 5829 flow [2023-11-06 23:03:45,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:03:45,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 23:03:45,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2156 transitions. [2023-11-06 23:03:45,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46226415094339623 [2023-11-06 23:03:45,202 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2156 transitions. [2023-11-06 23:03:45,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2156 transitions. [2023-11-06 23:03:45,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:03:45,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2156 transitions. [2023-11-06 23:03:45,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 196.0) internal successors, (2156), 11 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:45,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:45,229 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:45,229 INFO L175 Difference]: Start difference. First operand has 148 places, 391 transitions, 1790 flow. Second operand 11 states and 2156 transitions. [2023-11-06 23:03:45,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 857 transitions, 5829 flow [2023-11-06 23:03:45,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 857 transitions, 5655 flow, removed 87 selfloop flow, removed 0 redundant places. [2023-11-06 23:03:45,306 INFO L231 Difference]: Finished difference. Result has 167 places, 434 transitions, 2199 flow [2023-11-06 23:03:45,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=1760, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2199, PETRI_PLACES=167, PETRI_TRANSITIONS=434} [2023-11-06 23:03:45,308 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 33 predicate places. [2023-11-06 23:03:45,308 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 434 transitions, 2199 flow [2023-11-06 23:03:45,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:45,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:03:45,310 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:03:45,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 23:03:45,310 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:03:45,311 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:45,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1254750315, now seen corresponding path program 2 times [2023-11-06 23:03:45,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:03:45,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87284397] [2023-11-06 23:03:45,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:45,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:03:45,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:03:46,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:03:46,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:03:46,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87284397] [2023-11-06 23:03:46,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87284397] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:03:46,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:03:46,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:03:46,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816494701] [2023-11-06 23:03:46,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:03:46,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:03:46,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:03:46,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:03:46,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:03:48,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 424 [2023-11-06 23:03:48,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 434 transitions, 2199 flow. Second operand has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:48,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:03:48,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 424 [2023-11-06 23:03:48,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:03:52,224 INFO L124 PetriNetUnfolderBase]: 4344/9774 cut-off events. [2023-11-06 23:03:52,224 INFO L125 PetriNetUnfolderBase]: For 7542/7648 co-relation queries the response was YES. [2023-11-06 23:03:52,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29968 conditions, 9774 events. 4344/9774 cut-off events. For 7542/7648 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 67562 event pairs, 1789 based on Foata normal form. 14/9575 useless extension candidates. Maximal degree in co-relation 29945. Up to 3768 conditions per place. [2023-11-06 23:03:52,305 INFO L140 encePairwiseOnDemand]: 409/424 looper letters, 716 selfloop transitions, 54 changer transitions 0/810 dead transitions. [2023-11-06 23:03:52,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 810 transitions, 5547 flow [2023-11-06 23:03:52,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:03:52,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 23:03:52,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2195 transitions. [2023-11-06 23:03:52,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47062607204116635 [2023-11-06 23:03:52,317 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2195 transitions. [2023-11-06 23:03:52,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2195 transitions. [2023-11-06 23:03:52,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:03:52,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2195 transitions. [2023-11-06 23:03:52,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 199.54545454545453) internal successors, (2195), 11 states have internal predecessors, (2195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:52,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:52,338 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:52,338 INFO L175 Difference]: Start difference. First operand has 167 places, 434 transitions, 2199 flow. Second operand 11 states and 2195 transitions. [2023-11-06 23:03:52,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 810 transitions, 5547 flow [2023-11-06 23:03:52,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 810 transitions, 5547 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:03:52,444 INFO L231 Difference]: Finished difference. Result has 186 places, 477 transitions, 2753 flow [2023-11-06 23:03:52,445 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=2199, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2753, PETRI_PLACES=186, PETRI_TRANSITIONS=477} [2023-11-06 23:03:52,449 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 52 predicate places. [2023-11-06 23:03:52,450 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 477 transitions, 2753 flow [2023-11-06 23:03:52,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:52,451 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:03:52,451 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:03:52,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 23:03:52,452 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:03:52,452 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:52,452 INFO L85 PathProgramCache]: Analyzing trace with hash -2137541336, now seen corresponding path program 1 times [2023-11-06 23:03:52,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:03:52,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219188898] [2023-11-06 23:03:52,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:52,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:03:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:03:53,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:03:53,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:03:53,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219188898] [2023-11-06 23:03:53,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219188898] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:03:53,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:03:53,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:03:53,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995854583] [2023-11-06 23:03:53,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:03:53,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:03:53,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:03:53,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:03:53,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:03:54,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 424 [2023-11-06 23:03:54,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 477 transitions, 2753 flow. Second operand has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:54,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:03:54,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 424 [2023-11-06 23:03:54,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:03:58,052 INFO L124 PetriNetUnfolderBase]: 4308/9887 cut-off events. [2023-11-06 23:03:58,052 INFO L125 PetriNetUnfolderBase]: For 14360/14657 co-relation queries the response was YES. [2023-11-06 23:03:58,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32810 conditions, 9887 events. 4308/9887 cut-off events. For 14360/14657 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 69804 event pairs, 1854 based on Foata normal form. 19/9629 useless extension candidates. Maximal degree in co-relation 32777. Up to 3911 conditions per place. [2023-11-06 23:03:58,149 INFO L140 encePairwiseOnDemand]: 409/424 looper letters, 744 selfloop transitions, 64 changer transitions 0/853 dead transitions. [2023-11-06 23:03:58,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 853 transitions, 6653 flow [2023-11-06 23:03:58,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:03:58,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 23:03:58,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2151 transitions. [2023-11-06 23:03:58,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4611921097770154 [2023-11-06 23:03:58,160 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2151 transitions. [2023-11-06 23:03:58,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2151 transitions. [2023-11-06 23:03:58,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:03:58,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2151 transitions. [2023-11-06 23:03:58,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 195.54545454545453) internal successors, (2151), 11 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:58,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:58,183 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:58,184 INFO L175 Difference]: Start difference. First operand has 186 places, 477 transitions, 2753 flow. Second operand 11 states and 2151 transitions. [2023-11-06 23:03:58,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 853 transitions, 6653 flow [2023-11-06 23:03:58,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 853 transitions, 6569 flow, removed 42 selfloop flow, removed 0 redundant places. [2023-11-06 23:03:58,369 INFO L231 Difference]: Finished difference. Result has 205 places, 519 transitions, 3238 flow [2023-11-06 23:03:58,370 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=2669, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3238, PETRI_PLACES=205, PETRI_TRANSITIONS=519} [2023-11-06 23:03:58,371 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 71 predicate places. [2023-11-06 23:03:58,371 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 519 transitions, 3238 flow [2023-11-06 23:03:58,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:03:58,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:03:58,373 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:03:58,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 23:03:58,373 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:03:58,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:03:58,374 INFO L85 PathProgramCache]: Analyzing trace with hash 683062940, now seen corresponding path program 2 times [2023-11-06 23:03:58,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:03:58,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465524114] [2023-11-06 23:03:58,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:03:58,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:03:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:03:59,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:03:59,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:03:59,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465524114] [2023-11-06 23:03:59,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465524114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:03:59,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:03:59,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:03:59,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549546878] [2023-11-06 23:03:59,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:03:59,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:03:59,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:03:59,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:03:59,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:04:00,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 424 [2023-11-06 23:04:00,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 519 transitions, 3238 flow. Second operand has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:00,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:04:00,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 424 [2023-11-06 23:04:00,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:04:05,184 INFO L124 PetriNetUnfolderBase]: 4323/10015 cut-off events. [2023-11-06 23:04:05,184 INFO L125 PetriNetUnfolderBase]: For 19242/19499 co-relation queries the response was YES. [2023-11-06 23:04:05,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36070 conditions, 10015 events. 4323/10015 cut-off events. For 19242/19499 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 71378 event pairs, 1745 based on Foata normal form. 18/9765 useless extension candidates. Maximal degree in co-relation 36027. Up to 3912 conditions per place. [2023-11-06 23:04:05,272 INFO L140 encePairwiseOnDemand]: 375/424 looper letters, 504 selfloop transitions, 233 changer transitions 0/782 dead transitions. [2023-11-06 23:04:05,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 782 transitions, 6206 flow [2023-11-06 23:04:05,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:04:05,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 23:04:05,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2332 transitions. [2023-11-06 23:04:05,281 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-11-06 23:04:05,281 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2332 transitions. [2023-11-06 23:04:05,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2332 transitions. [2023-11-06 23:04:05,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:04:05,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2332 transitions. [2023-11-06 23:04:05,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 212.0) internal successors, (2332), 11 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:05,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:05,302 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:05,302 INFO L175 Difference]: Start difference. First operand has 205 places, 519 transitions, 3238 flow. Second operand 11 states and 2332 transitions. [2023-11-06 23:04:05,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 782 transitions, 6206 flow [2023-11-06 23:04:05,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 782 transitions, 6152 flow, removed 27 selfloop flow, removed 0 redundant places. [2023-11-06 23:04:05,573 INFO L231 Difference]: Finished difference. Result has 222 places, 538 transitions, 4307 flow [2023-11-06 23:04:05,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=3212, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=215, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4307, PETRI_PLACES=222, PETRI_TRANSITIONS=538} [2023-11-06 23:04:05,575 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 88 predicate places. [2023-11-06 23:04:05,575 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 538 transitions, 4307 flow [2023-11-06 23:04:05,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:05,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:04:05,593 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:05,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 23:04:05,594 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:04:05,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:05,594 INFO L85 PathProgramCache]: Analyzing trace with hash -390059976, now seen corresponding path program 3 times [2023-11-06 23:04:05,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:04:05,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57445356] [2023-11-06 23:04:05,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:05,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:04:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:06,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:06,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:04:06,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57445356] [2023-11-06 23:04:06,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57445356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:06,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:06,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:04:06,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440385911] [2023-11-06 23:04:06,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:06,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:04:06,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:04:06,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:04:06,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:04:08,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 424 [2023-11-06 23:04:08,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 538 transitions, 4307 flow. Second operand has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:08,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:04:08,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 424 [2023-11-06 23:04:08,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:04:12,198 INFO L124 PetriNetUnfolderBase]: 4365/10023 cut-off events. [2023-11-06 23:04:12,199 INFO L125 PetriNetUnfolderBase]: For 25904/26229 co-relation queries the response was YES. [2023-11-06 23:04:12,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40046 conditions, 10023 events. 4365/10023 cut-off events. For 25904/26229 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 71107 event pairs, 1829 based on Foata normal form. 16/9759 useless extension candidates. Maximal degree in co-relation 39995. Up to 3914 conditions per place. [2023-11-06 23:04:12,312 INFO L140 encePairwiseOnDemand]: 409/424 looper letters, 926 selfloop transitions, 68 changer transitions 0/1039 dead transitions. [2023-11-06 23:04:12,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 1039 transitions, 10462 flow [2023-11-06 23:04:12,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:04:12,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 23:04:12,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2189 transitions. [2023-11-06 23:04:12,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4693396226415094 [2023-11-06 23:04:12,323 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2189 transitions. [2023-11-06 23:04:12,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2189 transitions. [2023-11-06 23:04:12,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:04:12,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2189 transitions. [2023-11-06 23:04:12,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 199.0) internal successors, (2189), 11 states have internal predecessors, (2189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:12,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:12,344 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:12,344 INFO L175 Difference]: Start difference. First operand has 222 places, 538 transitions, 4307 flow. Second operand 11 states and 2189 transitions. [2023-11-06 23:04:12,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 1039 transitions, 10462 flow [2023-11-06 23:04:12,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 1039 transitions, 10431 flow, removed 12 selfloop flow, removed 1 redundant places. [2023-11-06 23:04:12,755 INFO L231 Difference]: Finished difference. Result has 239 places, 575 transitions, 4933 flow [2023-11-06 23:04:12,755 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=4277, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4933, PETRI_PLACES=239, PETRI_TRANSITIONS=575} [2023-11-06 23:04:12,756 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 105 predicate places. [2023-11-06 23:04:12,756 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 575 transitions, 4933 flow [2023-11-06 23:04:12,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:12,757 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:04:12,758 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:12,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 23:04:12,758 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:04:12,759 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:12,759 INFO L85 PathProgramCache]: Analyzing trace with hash 2094940395, now seen corresponding path program 3 times [2023-11-06 23:04:12,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:04:12,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848954458] [2023-11-06 23:04:12,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:12,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:04:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:13,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:13,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:04:13,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848954458] [2023-11-06 23:04:13,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848954458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:13,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:13,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:04:13,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185110379] [2023-11-06 23:04:13,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:13,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:04:13,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:04:13,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:04:13,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:04:15,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 424 [2023-11-06 23:04:15,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 575 transitions, 4933 flow. Second operand has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:15,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:04:15,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 424 [2023-11-06 23:04:15,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:04:20,040 INFO L124 PetriNetUnfolderBase]: 4623/10648 cut-off events. [2023-11-06 23:04:20,040 INFO L125 PetriNetUnfolderBase]: For 38920/39378 co-relation queries the response was YES. [2023-11-06 23:04:20,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44400 conditions, 10648 events. 4623/10648 cut-off events. For 38920/39378 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 76556 event pairs, 1365 based on Foata normal form. 12/10405 useless extension candidates. Maximal degree in co-relation 44340. Up to 3952 conditions per place. [2023-11-06 23:04:20,151 INFO L140 encePairwiseOnDemand]: 383/424 looper letters, 535 selfloop transitions, 216 changer transitions 0/791 dead transitions. [2023-11-06 23:04:20,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 791 transitions, 8056 flow [2023-11-06 23:04:20,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 23:04:20,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 23:04:20,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2084 transitions. [2023-11-06 23:04:20,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49150943396226415 [2023-11-06 23:04:20,160 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2084 transitions. [2023-11-06 23:04:20,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2084 transitions. [2023-11-06 23:04:20,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:04:20,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2084 transitions. [2023-11-06 23:04:20,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 208.4) internal successors, (2084), 10 states have internal predecessors, (2084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:20,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 424.0) internal successors, (4664), 11 states have internal predecessors, (4664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:20,177 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 424.0) internal successors, (4664), 11 states have internal predecessors, (4664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:20,177 INFO L175 Difference]: Start difference. First operand has 239 places, 575 transitions, 4933 flow. Second operand 10 states and 2084 transitions. [2023-11-06 23:04:20,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 791 transitions, 8056 flow [2023-11-06 23:04:20,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 791 transitions, 7845 flow, removed 57 selfloop flow, removed 2 redundant places. [2023-11-06 23:04:20,585 INFO L231 Difference]: Finished difference. Result has 249 places, 584 transitions, 5425 flow [2023-11-06 23:04:20,586 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=4804, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=208, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5425, PETRI_PLACES=249, PETRI_TRANSITIONS=584} [2023-11-06 23:04:20,588 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 115 predicate places. [2023-11-06 23:04:20,588 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 584 transitions, 5425 flow [2023-11-06 23:04:20,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:20,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:04:20,589 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:20,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 23:04:20,590 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:04:20,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:20,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1264985489, now seen corresponding path program 4 times [2023-11-06 23:04:20,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:04:20,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821879645] [2023-11-06 23:04:20,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:20,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:04:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:21,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:21,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:04:21,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821879645] [2023-11-06 23:04:21,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821879645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:21,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:21,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:04:21,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180495655] [2023-11-06 23:04:21,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:21,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:04:21,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:04:21,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:04:21,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:04:22,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 424 [2023-11-06 23:04:22,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 584 transitions, 5425 flow. Second operand has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:22,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:04:22,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 424 [2023-11-06 23:04:22,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:04:26,480 INFO L124 PetriNetUnfolderBase]: 4600/10542 cut-off events. [2023-11-06 23:04:26,480 INFO L125 PetriNetUnfolderBase]: For 42204/42698 co-relation queries the response was YES. [2023-11-06 23:04:26,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45443 conditions, 10542 events. 4600/10542 cut-off events. For 42204/42698 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 75605 event pairs, 1178 based on Foata normal form. 40/10442 useless extension candidates. Maximal degree in co-relation 45380. Up to 5047 conditions per place. [2023-11-06 23:04:26,593 INFO L140 encePairwiseOnDemand]: 410/424 looper letters, 869 selfloop transitions, 58 changer transitions 0/967 dead transitions. [2023-11-06 23:04:26,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 967 transitions, 10694 flow [2023-11-06 23:04:26,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:04:26,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 23:04:26,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2161 transitions. [2023-11-06 23:04:26,606 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.463336192109777 [2023-11-06 23:04:26,606 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2161 transitions. [2023-11-06 23:04:26,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2161 transitions. [2023-11-06 23:04:26,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:04:26,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2161 transitions. [2023-11-06 23:04:26,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 196.45454545454547) internal successors, (2161), 11 states have internal predecessors, (2161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:26,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:26,621 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:26,621 INFO L175 Difference]: Start difference. First operand has 249 places, 584 transitions, 5425 flow. Second operand 11 states and 2161 transitions. [2023-11-06 23:04:26,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 967 transitions, 10694 flow [2023-11-06 23:04:27,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 967 transitions, 10405 flow, removed 15 selfloop flow, removed 5 redundant places. [2023-11-06 23:04:27,026 INFO L231 Difference]: Finished difference. Result has 262 places, 621 transitions, 5955 flow [2023-11-06 23:04:27,026 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=5215, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=584, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=533, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5955, PETRI_PLACES=262, PETRI_TRANSITIONS=621} [2023-11-06 23:04:27,027 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 128 predicate places. [2023-11-06 23:04:27,027 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 621 transitions, 5955 flow [2023-11-06 23:04:27,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:27,028 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:04:27,028 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:27,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 23:04:27,028 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:04:27,029 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:27,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1569501283, now seen corresponding path program 5 times [2023-11-06 23:04:27,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:04:27,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452088370] [2023-11-06 23:04:27,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:27,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:04:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:27,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:27,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:04:27,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452088370] [2023-11-06 23:04:27,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452088370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:27,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:27,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:04:27,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632862168] [2023-11-06 23:04:27,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:27,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:04:27,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:04:27,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:04:27,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:04:29,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 424 [2023-11-06 23:04:29,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 621 transitions, 5955 flow. Second operand has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:29,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:04:29,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 424 [2023-11-06 23:04:29,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:04:33,404 INFO L124 PetriNetUnfolderBase]: 4733/10641 cut-off events. [2023-11-06 23:04:33,404 INFO L125 PetriNetUnfolderBase]: For 53016/53490 co-relation queries the response was YES. [2023-11-06 23:04:33,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48275 conditions, 10641 events. 4733/10641 cut-off events. For 53016/53490 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 75389 event pairs, 1838 based on Foata normal form. 25/10538 useless extension candidates. Maximal degree in co-relation 48204. Up to 3809 conditions per place. [2023-11-06 23:04:33,516 INFO L140 encePairwiseOnDemand]: 401/424 looper letters, 774 selfloop transitions, 166 changer transitions 0/980 dead transitions. [2023-11-06 23:04:33,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 980 transitions, 11197 flow [2023-11-06 23:04:33,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:04:33,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 23:04:33,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2171 transitions. [2023-11-06 23:04:33,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4654802744425386 [2023-11-06 23:04:33,524 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2171 transitions. [2023-11-06 23:04:33,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2171 transitions. [2023-11-06 23:04:33,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:04:33,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2171 transitions. [2023-11-06 23:04:33,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 197.36363636363637) internal successors, (2171), 11 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:33,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:33,539 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:33,539 INFO L175 Difference]: Start difference. First operand has 262 places, 621 transitions, 5955 flow. Second operand 11 states and 2171 transitions. [2023-11-06 23:04:33,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 980 transitions, 11197 flow [2023-11-06 23:04:34,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 980 transitions, 11049 flow, removed 69 selfloop flow, removed 1 redundant places. [2023-11-06 23:04:34,260 INFO L231 Difference]: Finished difference. Result has 278 places, 699 transitions, 7519 flow [2023-11-06 23:04:34,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=5807, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=621, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7519, PETRI_PLACES=278, PETRI_TRANSITIONS=699} [2023-11-06 23:04:34,262 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 144 predicate places. [2023-11-06 23:04:34,262 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 699 transitions, 7519 flow [2023-11-06 23:04:34,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:34,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:04:34,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:34,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 23:04:34,263 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:04:34,263 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:34,264 INFO L85 PathProgramCache]: Analyzing trace with hash 840359420, now seen corresponding path program 4 times [2023-11-06 23:04:34,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:04:34,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250523004] [2023-11-06 23:04:34,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:34,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:04:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:35,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:35,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:04:35,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250523004] [2023-11-06 23:04:35,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250523004] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:35,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:35,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:04:35,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26503546] [2023-11-06 23:04:35,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:35,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:04:35,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:04:35,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:04:35,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:04:36,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 424 [2023-11-06 23:04:36,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 699 transitions, 7519 flow. Second operand has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:36,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:04:36,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 424 [2023-11-06 23:04:36,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:04:41,652 INFO L124 PetriNetUnfolderBase]: 4492/10251 cut-off events. [2023-11-06 23:04:41,652 INFO L125 PetriNetUnfolderBase]: For 57354/57901 co-relation queries the response was YES. [2023-11-06 23:04:41,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48631 conditions, 10251 events. 4492/10251 cut-off events. For 57354/57901 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 73064 event pairs, 1894 based on Foata normal form. 15/9993 useless extension candidates. Maximal degree in co-relation 48553. Up to 3937 conditions per place. [2023-11-06 23:04:41,790 INFO L140 encePairwiseOnDemand]: 375/424 looper letters, 589 selfloop transitions, 316 changer transitions 0/966 dead transitions. [2023-11-06 23:04:41,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 966 transitions, 11443 flow [2023-11-06 23:04:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 23:04:41,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 23:04:41,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2506 transitions. [2023-11-06 23:04:41,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4925314465408805 [2023-11-06 23:04:41,796 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2506 transitions. [2023-11-06 23:04:41,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2506 transitions. [2023-11-06 23:04:41,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:04:41,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2506 transitions. [2023-11-06 23:04:41,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 208.83333333333334) internal successors, (2506), 12 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:41,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 424.0) internal successors, (5512), 13 states have internal predecessors, (5512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:41,813 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 424.0) internal successors, (5512), 13 states have internal predecessors, (5512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:41,813 INFO L175 Difference]: Start difference. First operand has 278 places, 699 transitions, 7519 flow. Second operand 12 states and 2506 transitions. [2023-11-06 23:04:41,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 966 transitions, 11443 flow [2023-11-06 23:04:42,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 966 transitions, 11096 flow, removed 144 selfloop flow, removed 1 redundant places. [2023-11-06 23:04:42,483 INFO L231 Difference]: Finished difference. Result has 291 places, 711 transitions, 8217 flow [2023-11-06 23:04:42,484 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=7284, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=699, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=305, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=8217, PETRI_PLACES=291, PETRI_TRANSITIONS=711} [2023-11-06 23:04:42,485 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 157 predicate places. [2023-11-06 23:04:42,485 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 711 transitions, 8217 flow [2023-11-06 23:04:42,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:42,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:04:42,486 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:42,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 23:04:42,486 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:04:42,487 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:42,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1951569961, now seen corresponding path program 6 times [2023-11-06 23:04:42,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:04:42,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998507124] [2023-11-06 23:04:42,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:42,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:04:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:43,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:43,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:04:43,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998507124] [2023-11-06 23:04:43,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998507124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:43,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:43,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:04:43,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481708581] [2023-11-06 23:04:43,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:43,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:04:43,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:04:43,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:04:43,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:04:44,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 424 [2023-11-06 23:04:44,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 711 transitions, 8217 flow. Second operand has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:44,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:04:44,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 424 [2023-11-06 23:04:44,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:04:49,572 INFO L124 PetriNetUnfolderBase]: 4753/10880 cut-off events. [2023-11-06 23:04:49,572 INFO L125 PetriNetUnfolderBase]: For 73143/73733 co-relation queries the response was YES. [2023-11-06 23:04:49,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52935 conditions, 10880 events. 4753/10880 cut-off events. For 73143/73733 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 77825 event pairs, 1903 based on Foata normal form. 25/10782 useless extension candidates. Maximal degree in co-relation 52853. Up to 3961 conditions per place. [2023-11-06 23:04:49,696 INFO L140 encePairwiseOnDemand]: 383/424 looper letters, 593 selfloop transitions, 295 changer transitions 0/928 dead transitions. [2023-11-06 23:04:49,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 928 transitions, 11981 flow [2023-11-06 23:04:49,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:04:49,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 23:04:49,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2258 transitions. [2023-11-06 23:04:49,700 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4841337907375643 [2023-11-06 23:04:49,700 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2258 transitions. [2023-11-06 23:04:49,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2258 transitions. [2023-11-06 23:04:49,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:04:49,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2258 transitions. [2023-11-06 23:04:49,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 205.27272727272728) internal successors, (2258), 11 states have internal predecessors, (2258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:49,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:49,708 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:49,709 INFO L175 Difference]: Start difference. First operand has 291 places, 711 transitions, 8217 flow. Second operand 11 states and 2258 transitions. [2023-11-06 23:04:49,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 928 transitions, 11981 flow [2023-11-06 23:04:50,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 928 transitions, 11230 flow, removed 49 selfloop flow, removed 7 redundant places. [2023-11-06 23:04:50,332 INFO L231 Difference]: Finished difference. Result has 298 places, 723 transitions, 8617 flow [2023-11-06 23:04:50,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=7628, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=711, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=285, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8617, PETRI_PLACES=298, PETRI_TRANSITIONS=723} [2023-11-06 23:04:50,334 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 164 predicate places. [2023-11-06 23:04:50,334 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 723 transitions, 8617 flow [2023-11-06 23:04:50,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:50,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:04:50,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:50,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 23:04:50,335 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:04:50,335 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:50,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1053950677, now seen corresponding path program 7 times [2023-11-06 23:04:50,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:04:50,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278149185] [2023-11-06 23:04:50,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:50,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:04:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:50,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:50,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:04:50,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278149185] [2023-11-06 23:04:50,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278149185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:50,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:50,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:04:50,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050589028] [2023-11-06 23:04:50,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:50,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:04:50,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:04:50,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:04:50,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:04:52,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 424 [2023-11-06 23:04:52,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 723 transitions, 8617 flow. Second operand has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:52,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:04:52,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 424 [2023-11-06 23:04:52,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:04:57,258 INFO L124 PetriNetUnfolderBase]: 4817/11067 cut-off events. [2023-11-06 23:04:57,258 INFO L125 PetriNetUnfolderBase]: For 79252/79909 co-relation queries the response was YES. [2023-11-06 23:04:57,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54661 conditions, 11067 events. 4817/11067 cut-off events. For 79252/79909 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 80422 event pairs, 1393 based on Foata normal form. 36/10959 useless extension candidates. Maximal degree in co-relation 54575. Up to 3961 conditions per place. [2023-11-06 23:04:57,345 INFO L140 encePairwiseOnDemand]: 410/424 looper letters, 868 selfloop transitions, 81 changer transitions 0/989 dead transitions. [2023-11-06 23:04:57,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 989 transitions, 13463 flow [2023-11-06 23:04:57,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:04:57,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 23:04:57,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2142 transitions. [2023-11-06 23:04:57,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45926243567753 [2023-11-06 23:04:57,348 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2142 transitions. [2023-11-06 23:04:57,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2142 transitions. [2023-11-06 23:04:57,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:04:57,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2142 transitions. [2023-11-06 23:04:57,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 194.72727272727272) internal successors, (2142), 11 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:57,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:57,357 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:57,357 INFO L175 Difference]: Start difference. First operand has 298 places, 723 transitions, 8617 flow. Second operand 11 states and 2142 transitions. [2023-11-06 23:04:57,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 989 transitions, 13463 flow [2023-11-06 23:04:57,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 989 transitions, 13017 flow, removed 80 selfloop flow, removed 5 redundant places. [2023-11-06 23:04:57,961 INFO L231 Difference]: Finished difference. Result has 311 places, 756 transitions, 9227 flow [2023-11-06 23:04:57,961 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=8281, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=723, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=648, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=9227, PETRI_PLACES=311, PETRI_TRANSITIONS=756} [2023-11-06 23:04:57,962 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 177 predicate places. [2023-11-06 23:04:57,962 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 756 transitions, 9227 flow [2023-11-06 23:04:57,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:04:57,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:04:57,962 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:04:57,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 23:04:57,963 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:04:57,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:04:57,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1393015526, now seen corresponding path program 5 times [2023-11-06 23:04:57,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:04:57,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438915764] [2023-11-06 23:04:57,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:04:57,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:04:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:04:58,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:04:58,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:04:58,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438915764] [2023-11-06 23:04:58,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438915764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:04:58,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:04:58,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:04:58,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409505810] [2023-11-06 23:04:58,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:04:58,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:04:58,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:04:58,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:04:58,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:05:00,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 424 [2023-11-06 23:05:00,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 756 transitions, 9227 flow. Second operand has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:00,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:05:00,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 424 [2023-11-06 23:05:00,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:05:05,508 INFO L124 PetriNetUnfolderBase]: 4587/10404 cut-off events. [2023-11-06 23:05:05,508 INFO L125 PetriNetUnfolderBase]: For 76880/77465 co-relation queries the response was YES. [2023-11-06 23:05:05,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53066 conditions, 10404 events. 4587/10404 cut-off events. For 76880/77465 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 74124 event pairs, 1821 based on Foata normal form. 17/10142 useless extension candidates. Maximal degree in co-relation 52972. Up to 5114 conditions per place. [2023-11-06 23:05:05,647 INFO L140 encePairwiseOnDemand]: 386/424 looper letters, 788 selfloop transitions, 203 changer transitions 0/1052 dead transitions. [2023-11-06 23:05:05,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 1052 transitions, 13943 flow [2023-11-06 23:05:05,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:05:05,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 23:05:05,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2242 transitions. [2023-11-06 23:05:05,651 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4807032590051458 [2023-11-06 23:05:05,651 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2242 transitions. [2023-11-06 23:05:05,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2242 transitions. [2023-11-06 23:05:05,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:05:05,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2242 transitions. [2023-11-06 23:05:05,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 203.8181818181818) internal successors, (2242), 11 states have internal predecessors, (2242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:05,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:05,657 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:05,657 INFO L175 Difference]: Start difference. First operand has 311 places, 756 transitions, 9227 flow. Second operand 11 states and 2242 transitions. [2023-11-06 23:05:05,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 1052 transitions, 13943 flow [2023-11-06 23:05:06,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 1052 transitions, 13538 flow, removed 195 selfloop flow, removed 1 redundant places. [2023-11-06 23:05:06,580 INFO L231 Difference]: Finished difference. Result has 327 places, 867 transitions, 11162 flow [2023-11-06 23:05:06,581 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=8930, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=756, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11162, PETRI_PLACES=327, PETRI_TRANSITIONS=867} [2023-11-06 23:05:06,582 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 193 predicate places. [2023-11-06 23:05:06,582 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 867 transitions, 11162 flow [2023-11-06 23:05:06,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:06,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:05:06,583 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:05:06,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 23:05:06,583 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:05:06,583 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:06,583 INFO L85 PathProgramCache]: Analyzing trace with hash 181945835, now seen corresponding path program 8 times [2023-11-06 23:05:06,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:06,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200970312] [2023-11-06 23:05:06,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:06,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:07,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:07,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:07,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200970312] [2023-11-06 23:05:07,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200970312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:05:07,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:05:07,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:05:07,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682383180] [2023-11-06 23:05:07,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:05:07,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:05:07,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:07,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:05:07,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:05:09,216 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 424 [2023-11-06 23:05:09,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 867 transitions, 11162 flow. Second operand has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:09,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:05:09,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 424 [2023-11-06 23:05:09,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:05:14,201 INFO L124 PetriNetUnfolderBase]: 4839/11080 cut-off events. [2023-11-06 23:05:14,201 INFO L125 PetriNetUnfolderBase]: For 93578/94214 co-relation queries the response was YES. [2023-11-06 23:05:14,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57271 conditions, 11080 events. 4839/11080 cut-off events. For 93578/94214 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 80505 event pairs, 1356 based on Foata normal form. 26/10966 useless extension candidates. Maximal degree in co-relation 57170. Up to 5337 conditions per place. [2023-11-06 23:05:14,379 INFO L140 encePairwiseOnDemand]: 402/424 looper letters, 902 selfloop transitions, 118 changer transitions 0/1072 dead transitions. [2023-11-06 23:05:14,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 1072 transitions, 15639 flow [2023-11-06 23:05:14,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:05:14,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 23:05:14,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2153 transitions. [2023-11-06 23:05:14,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46162092624356776 [2023-11-06 23:05:14,384 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2153 transitions. [2023-11-06 23:05:14,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2153 transitions. [2023-11-06 23:05:14,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:05:14,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2153 transitions. [2023-11-06 23:05:14,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 195.72727272727272) internal successors, (2153), 11 states have internal predecessors, (2153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:14,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:14,390 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:14,390 INFO L175 Difference]: Start difference. First operand has 327 places, 867 transitions, 11162 flow. Second operand 11 states and 2153 transitions. [2023-11-06 23:05:14,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 1072 transitions, 15639 flow [2023-11-06 23:05:15,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 1072 transitions, 15289 flow, removed 145 selfloop flow, removed 2 redundant places. [2023-11-06 23:05:15,542 INFO L231 Difference]: Finished difference. Result has 342 places, 918 transitions, 12294 flow [2023-11-06 23:05:15,543 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=10977, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=867, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=760, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12294, PETRI_PLACES=342, PETRI_TRANSITIONS=918} [2023-11-06 23:05:15,543 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 208 predicate places. [2023-11-06 23:05:15,544 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 918 transitions, 12294 flow [2023-11-06 23:05:15,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:15,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:05:15,544 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:05:15,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 23:05:15,544 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:05:15,544 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:15,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1046483307, now seen corresponding path program 9 times [2023-11-06 23:05:15,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:15,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078113245] [2023-11-06 23:05:15,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:15,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:16,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:16,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:16,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078113245] [2023-11-06 23:05:16,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078113245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:05:16,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:05:16,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:05:16,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306753573] [2023-11-06 23:05:16,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:05:16,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:05:16,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:16,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:05:16,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:05:18,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 424 [2023-11-06 23:05:18,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 918 transitions, 12294 flow. Second operand has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:18,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:05:18,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 424 [2023-11-06 23:05:18,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:05:23,984 INFO L124 PetriNetUnfolderBase]: 4943/11333 cut-off events. [2023-11-06 23:05:23,984 INFO L125 PetriNetUnfolderBase]: For 109863/110527 co-relation queries the response was YES. [2023-11-06 23:05:24,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60020 conditions, 11333 events. 4943/11333 cut-off events. For 109863/110527 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 82821 event pairs, 1392 based on Foata normal form. 36/11222 useless extension candidates. Maximal degree in co-relation 59911. Up to 3972 conditions per place. [2023-11-06 23:05:24,112 INFO L140 encePairwiseOnDemand]: 383/424 looper letters, 740 selfloop transitions, 358 changer transitions 0/1150 dead transitions. [2023-11-06 23:05:24,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 1150 transitions, 16981 flow [2023-11-06 23:05:24,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:05:24,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 23:05:24,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2201 transitions. [2023-11-06 23:05:24,116 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47191252144082335 [2023-11-06 23:05:24,116 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2201 transitions. [2023-11-06 23:05:24,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2201 transitions. [2023-11-06 23:05:24,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:05:24,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2201 transitions. [2023-11-06 23:05:24,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 200.0909090909091) internal successors, (2201), 11 states have internal predecessors, (2201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:24,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:24,123 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:24,124 INFO L175 Difference]: Start difference. First operand has 342 places, 918 transitions, 12294 flow. Second operand 11 states and 2201 transitions. [2023-11-06 23:05:24,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 1150 transitions, 16981 flow [2023-11-06 23:05:25,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 1150 transitions, 16712 flow, removed 110 selfloop flow, removed 2 redundant places. [2023-11-06 23:05:25,467 INFO L231 Difference]: Finished difference. Result has 356 places, 948 transitions, 13756 flow [2023-11-06 23:05:25,469 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=12040, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=918, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=330, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=570, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13756, PETRI_PLACES=356, PETRI_TRANSITIONS=948} [2023-11-06 23:05:25,469 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 222 predicate places. [2023-11-06 23:05:25,470 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 948 transitions, 13756 flow [2023-11-06 23:05:25,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:25,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:05:25,470 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:05:25,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-06 23:05:25,471 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:05:25,471 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:25,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1528024727, now seen corresponding path program 10 times [2023-11-06 23:05:25,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:25,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185115830] [2023-11-06 23:05:25,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:25,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:26,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:26,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:26,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185115830] [2023-11-06 23:05:26,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185115830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:05:26,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:05:26,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:05:26,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684062151] [2023-11-06 23:05:26,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:05:26,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:05:26,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:26,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:05:26,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:05:28,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 424 [2023-11-06 23:05:28,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 948 transitions, 13756 flow. Second operand has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:28,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:05:28,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 424 [2023-11-06 23:05:28,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:05:34,100 INFO L124 PetriNetUnfolderBase]: 5072/11455 cut-off events. [2023-11-06 23:05:34,100 INFO L125 PetriNetUnfolderBase]: For 134716/135376 co-relation queries the response was YES. [2023-11-06 23:05:34,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64531 conditions, 11455 events. 5072/11455 cut-off events. For 134716/135376 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 82636 event pairs, 2011 based on Foata normal form. 21/11352 useless extension candidates. Maximal degree in co-relation 64416. Up to 3974 conditions per place. [2023-11-06 23:05:34,285 INFO L140 encePairwiseOnDemand]: 402/424 looper letters, 1023 selfloop transitions, 132 changer transitions 0/1207 dead transitions. [2023-11-06 23:05:34,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 1207 transitions, 19444 flow [2023-11-06 23:05:34,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:05:34,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 23:05:34,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2156 transitions. [2023-11-06 23:05:34,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46226415094339623 [2023-11-06 23:05:34,289 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2156 transitions. [2023-11-06 23:05:34,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2156 transitions. [2023-11-06 23:05:34,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:05:34,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2156 transitions. [2023-11-06 23:05:34,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 196.0) internal successors, (2156), 11 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:34,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:34,294 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 424.0) internal successors, (5088), 12 states have internal predecessors, (5088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:34,294 INFO L175 Difference]: Start difference. First operand has 356 places, 948 transitions, 13756 flow. Second operand 11 states and 2156 transitions. [2023-11-06 23:05:34,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 1207 transitions, 19444 flow [2023-11-06 23:05:35,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 1207 transitions, 19082 flow, removed 102 selfloop flow, removed 3 redundant places. [2023-11-06 23:05:35,850 INFO L231 Difference]: Finished difference. Result has 370 places, 988 transitions, 14888 flow [2023-11-06 23:05:35,851 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=424, PETRI_DIFFERENCE_MINUEND_FLOW=13400, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=948, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=828, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=14888, PETRI_PLACES=370, PETRI_TRANSITIONS=988} [2023-11-06 23:05:35,852 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 236 predicate places. [2023-11-06 23:05:35,852 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 988 transitions, 14888 flow [2023-11-06 23:05:35,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 171.0909090909091) internal successors, (1882), 11 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:05:35,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:05:35,853 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:05:35,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-06 23:05:35,853 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-06 23:05:35,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:05:35,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1922993776, now seen corresponding path program 6 times [2023-11-06 23:05:35,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:05:35,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901227236] [2023-11-06 23:05:35,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:05:35,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:05:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:05:36,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:05:36,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:05:36,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901227236] [2023-11-06 23:05:36,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901227236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:05:36,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:05:36,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 23:05:36,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232523501] [2023-11-06 23:05:36,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:05:36,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 23:05:36,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:05:36,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 23:05:36,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110