./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 387afe7095db5eeb3a9188bc3fe181fa803bb62f73944f6d781c5c9340fce39e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:49:57,100 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:49:57,219 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:49:57,228 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:49:57,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:49:57,268 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:49:57,269 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:49:57,270 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:49:57,272 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:49:57,276 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:49:57,277 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:49:57,278 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:49:57,278 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:49:57,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:49:57,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:49:57,281 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:49:57,281 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:49:57,281 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:49:57,282 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:49:57,282 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:49:57,283 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:49:57,283 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:49:57,284 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:49:57,284 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:49:57,284 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:49:57,285 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:49:57,285 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:49:57,286 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:49:57,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:49:57,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:49:57,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:49:57,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:49:57,289 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:49:57,289 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:49:57,289 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:49:57,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:49:57,289 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:49:57,290 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:49:57,290 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:49:57,290 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:49:57,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:49:57,291 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_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 387afe7095db5eeb3a9188bc3fe181fa803bb62f73944f6d781c5c9340fce39e [2023-11-26 11:49:57,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:49:57,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:49:57,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:49:57,641 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:49:57,642 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:49:57,643 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/parallel-misc-2.wvr.c [2023-11-26 11:50:00,767 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:50:00,988 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:50:00,989 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/sv-benchmarks/c/weaver/parallel-misc-2.wvr.c [2023-11-26 11:50:00,997 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme/data/91bbea88a/95b56fb7876a418ea23f0121affe3303/FLAG35167ef7c [2023-11-26 11:50:01,013 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme/data/91bbea88a/95b56fb7876a418ea23f0121affe3303 [2023-11-26 11:50:01,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:50:01,017 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:50:01,019 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:50:01,019 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:50:01,025 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:50:01,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:50:01" (1/1) ... [2023-11-26 11:50:01,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60cdc706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:01, skipping insertion in model container [2023-11-26 11:50:01,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:50:01" (1/1) ... [2023-11-26 11:50:01,054 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:50:01,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:50:01,279 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:50:01,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:50:01,321 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:50:01,321 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:50:01,329 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:50:01,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:01 WrapperNode [2023-11-26 11:50:01,330 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:50:01,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:50:01,331 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:50:01,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:50:01,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:01" (1/1) ... [2023-11-26 11:50:01,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:01" (1/1) ... [2023-11-26 11:50:01,376 INFO L138 Inliner]: procedures = 21, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 127 [2023-11-26 11:50:01,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:50:01,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:50:01,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:50:01,377 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:50:01,388 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:01" (1/1) ... [2023-11-26 11:50:01,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:01" (1/1) ... [2023-11-26 11:50:01,393 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:01" (1/1) ... [2023-11-26 11:50:01,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:01" (1/1) ... [2023-11-26 11:50:01,405 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:01" (1/1) ... [2023-11-26 11:50:01,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:01" (1/1) ... [2023-11-26 11:50:01,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:01" (1/1) ... [2023-11-26 11:50:01,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:01" (1/1) ... [2023-11-26 11:50:01,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:50:01,418 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:50:01,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:50:01,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:50:01,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:01" (1/1) ... [2023-11-26 11:50:01,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:50:01,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:50:01,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:50:01,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:50:01,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:50:01,502 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 11:50:01,502 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 11:50:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 11:50:01,503 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 11:50:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:50:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:50:01,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:50:01,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 11:50:01,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 11:50:01,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:50:01,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:50:01,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:50:01,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:50:01,507 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:50:01,613 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:50:01,614 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:50:02,059 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:50:02,165 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:50:02,166 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 11:50:02,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:50:02 BoogieIcfgContainer [2023-11-26 11:50:02,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:50:02,174 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:50:02,174 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:50:02,177 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:50:02,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:50:01" (1/3) ... [2023-11-26 11:50:02,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758facd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:50:02, skipping insertion in model container [2023-11-26 11:50:02,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:01" (2/3) ... [2023-11-26 11:50:02,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758facd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:50:02, skipping insertion in model container [2023-11-26 11:50:02,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:50:02" (3/3) ... [2023-11-26 11:50:02,182 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2.wvr.c [2023-11-26 11:50:02,193 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:50:02,206 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:50:02,206 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-11-26 11:50:02,207 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:50:02,378 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 11:50:02,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 235 places, 238 transitions, 490 flow [2023-11-26 11:50:02,581 INFO L124 PetriNetUnfolderBase]: 10/236 cut-off events. [2023-11-26 11:50:02,582 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 11:50:02,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 236 events. 10/236 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 350 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 151. Up to 2 conditions per place. [2023-11-26 11:50:02,590 INFO L82 GeneralOperation]: Start removeDead. Operand has 235 places, 238 transitions, 490 flow [2023-11-26 11:50:02,606 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 213 places, 215 transitions, 442 flow [2023-11-26 11:50:02,623 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:50:02,634 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c318ea6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:50:02,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-11-26 11:50:02,640 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:50:02,640 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2023-11-26 11:50:02,640 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:50:02,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:02,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:02,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:02,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:02,648 INFO L85 PathProgramCache]: Analyzing trace with hash -371347633, now seen corresponding path program 1 times [2023-11-26 11:50:02,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:02,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151408763] [2023-11-26 11:50:02,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:02,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:02,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:02,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:02,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151408763] [2023-11-26 11:50:02,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151408763] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:02,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:02,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:02,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948858478] [2023-11-26 11:50:02,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:02,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:02,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:02,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:02,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:03,007 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 238 [2023-11-26 11:50:03,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 215 transitions, 442 flow. Second operand has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:03,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:03,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 238 [2023-11-26 11:50:03,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:03,118 INFO L124 PetriNetUnfolderBase]: 14/266 cut-off events. [2023-11-26 11:50:03,118 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-26 11:50:03,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 266 events. 14/266 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 643 event pairs, 3 based on Foata normal form. 7/227 useless extension candidates. Maximal degree in co-relation 159. Up to 26 conditions per place. [2023-11-26 11:50:03,124 INFO L140 encePairwiseOnDemand]: 224/238 looper letters, 15 selfloop transitions, 2 changer transitions 1/203 dead transitions. [2023-11-26 11:50:03,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 203 transitions, 452 flow [2023-11-26 11:50:03,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:03,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:50:03,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 647 transitions. [2023-11-26 11:50:03,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9061624649859944 [2023-11-26 11:50:03,149 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 647 transitions. [2023-11-26 11:50:03,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 647 transitions. [2023-11-26 11:50:03,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:03,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 647 transitions. [2023-11-26 11:50:03,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 215.66666666666666) internal successors, (647), 3 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:03,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:03,176 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:03,178 INFO L175 Difference]: Start difference. First operand has 213 places, 215 transitions, 442 flow. Second operand 3 states and 647 transitions. [2023-11-26 11:50:03,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 203 transitions, 452 flow [2023-11-26 11:50:03,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 203 transitions, 444 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:50:03,190 INFO L231 Difference]: Finished difference. Result has 202 places, 202 transitions, 412 flow [2023-11-26 11:50:03,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=412, PETRI_PLACES=202, PETRI_TRANSITIONS=202} [2023-11-26 11:50:03,197 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -11 predicate places. [2023-11-26 11:50:03,197 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 202 transitions, 412 flow [2023-11-26 11:50:03,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:03,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:03,199 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:03,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:50:03,199 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:03,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:03,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1106235019, now seen corresponding path program 1 times [2023-11-26 11:50:03,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:03,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674087668] [2023-11-26 11:50:03,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:03,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:03,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:03,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:03,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674087668] [2023-11-26 11:50:03,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674087668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:03,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:03,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:03,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186407063] [2023-11-26 11:50:03,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:03,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:03,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:03,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:03,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:03,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 238 [2023-11-26 11:50:03,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 202 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:03,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:03,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 238 [2023-11-26 11:50:03,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:03,465 INFO L124 PetriNetUnfolderBase]: 24/300 cut-off events. [2023-11-26 11:50:03,465 INFO L125 PetriNetUnfolderBase]: For 3/4 co-relation queries the response was YES. [2023-11-26 11:50:03,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 300 events. 24/300 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 899 event pairs, 9 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 326. Up to 43 conditions per place. [2023-11-26 11:50:03,471 INFO L140 encePairwiseOnDemand]: 235/238 looper letters, 15 selfloop transitions, 2 changer transitions 0/201 dead transitions. [2023-11-26 11:50:03,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 201 transitions, 444 flow [2023-11-26 11:50:03,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:03,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:50:03,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 636 transitions. [2023-11-26 11:50:03,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8907563025210085 [2023-11-26 11:50:03,476 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 636 transitions. [2023-11-26 11:50:03,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 636 transitions. [2023-11-26 11:50:03,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:03,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 636 transitions. [2023-11-26 11:50:03,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:03,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:03,484 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:03,485 INFO L175 Difference]: Start difference. First operand has 202 places, 202 transitions, 412 flow. Second operand 3 states and 636 transitions. [2023-11-26 11:50:03,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 201 transitions, 444 flow [2023-11-26 11:50:03,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 201 transitions, 440 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:50:03,498 INFO L231 Difference]: Finished difference. Result has 200 places, 201 transitions, 410 flow [2023-11-26 11:50:03,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=410, PETRI_PLACES=200, PETRI_TRANSITIONS=201} [2023-11-26 11:50:03,499 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -13 predicate places. [2023-11-26 11:50:03,500 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 201 transitions, 410 flow [2023-11-26 11:50:03,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:03,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:03,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:03,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:50:03,506 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:03,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:03,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1888140136, now seen corresponding path program 1 times [2023-11-26 11:50:03,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:03,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304684410] [2023-11-26 11:50:03,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:03,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:03,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:03,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:03,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304684410] [2023-11-26 11:50:03,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304684410] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:03,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:03,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:03,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069314216] [2023-11-26 11:50:03,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:03,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:03,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:03,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:03,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:03,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 238 [2023-11-26 11:50:03,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 201 transitions, 410 flow. Second operand has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:03,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:03,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 238 [2023-11-26 11:50:03,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:03,768 INFO L124 PetriNetUnfolderBase]: 24/300 cut-off events. [2023-11-26 11:50:03,769 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-26 11:50:03,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 300 events. 24/300 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 926 event pairs, 9 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 315. Up to 42 conditions per place. [2023-11-26 11:50:03,772 INFO L140 encePairwiseOnDemand]: 235/238 looper letters, 15 selfloop transitions, 2 changer transitions 0/200 dead transitions. [2023-11-26 11:50:03,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 200 transitions, 442 flow [2023-11-26 11:50:03,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:03,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:50:03,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 636 transitions. [2023-11-26 11:50:03,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8907563025210085 [2023-11-26 11:50:03,777 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 636 transitions. [2023-11-26 11:50:03,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 636 transitions. [2023-11-26 11:50:03,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:03,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 636 transitions. [2023-11-26 11:50:03,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:03,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:03,783 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:03,783 INFO L175 Difference]: Start difference. First operand has 200 places, 201 transitions, 410 flow. Second operand 3 states and 636 transitions. [2023-11-26 11:50:03,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 200 transitions, 442 flow [2023-11-26 11:50:03,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 200 transitions, 438 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:50:03,788 INFO L231 Difference]: Finished difference. Result has 199 places, 200 transitions, 408 flow [2023-11-26 11:50:03,789 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=199, PETRI_TRANSITIONS=200} [2023-11-26 11:50:03,791 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -14 predicate places. [2023-11-26 11:50:03,791 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 200 transitions, 408 flow [2023-11-26 11:50:03,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:03,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:03,792 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:03,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:50:03,793 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:03,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:03,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1255068621, now seen corresponding path program 1 times [2023-11-26 11:50:03,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:03,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281623590] [2023-11-26 11:50:03,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:03,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:03,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:03,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:03,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281623590] [2023-11-26 11:50:03,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281623590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:03,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:03,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:03,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483866399] [2023-11-26 11:50:03,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:03,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:03,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:03,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:03,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:03,923 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 238 [2023-11-26 11:50:03,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 200 transitions, 408 flow. Second operand has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:03,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:03,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 238 [2023-11-26 11:50:03,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:03,995 INFO L124 PetriNetUnfolderBase]: 23/342 cut-off events. [2023-11-26 11:50:03,995 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2023-11-26 11:50:03,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 391 conditions, 342 events. 23/342 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1120 event pairs, 8 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 348. Up to 39 conditions per place. [2023-11-26 11:50:03,999 INFO L140 encePairwiseOnDemand]: 235/238 looper letters, 13 selfloop transitions, 2 changer transitions 0/199 dead transitions. [2023-11-26 11:50:03,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 199 transitions, 436 flow [2023-11-26 11:50:04,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:04,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:50:04,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 640 transitions. [2023-11-26 11:50:04,003 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.896358543417367 [2023-11-26 11:50:04,003 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 640 transitions. [2023-11-26 11:50:04,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 640 transitions. [2023-11-26 11:50:04,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:04,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 640 transitions. [2023-11-26 11:50:04,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,010 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,010 INFO L175 Difference]: Start difference. First operand has 199 places, 200 transitions, 408 flow. Second operand 3 states and 640 transitions. [2023-11-26 11:50:04,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 199 transitions, 436 flow [2023-11-26 11:50:04,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 199 transitions, 432 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:50:04,016 INFO L231 Difference]: Finished difference. Result has 198 places, 199 transitions, 406 flow [2023-11-26 11:50:04,016 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=406, PETRI_PLACES=198, PETRI_TRANSITIONS=199} [2023-11-26 11:50:04,018 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -15 predicate places. [2023-11-26 11:50:04,018 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 199 transitions, 406 flow [2023-11-26 11:50:04,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:04,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:04,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:50:04,020 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:04,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:04,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1062844078, now seen corresponding path program 1 times [2023-11-26 11:50:04,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:04,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584380113] [2023-11-26 11:50:04,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:04,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:04,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:04,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:04,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584380113] [2023-11-26 11:50:04,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584380113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:04,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:04,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:04,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398891201] [2023-11-26 11:50:04,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:04,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:04,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:04,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:04,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:04,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 238 [2023-11-26 11:50:04,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 199 transitions, 406 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:04,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 238 [2023-11-26 11:50:04,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:04,224 INFO L124 PetriNetUnfolderBase]: 28/381 cut-off events. [2023-11-26 11:50:04,225 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-26 11:50:04,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 381 events. 28/381 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1383 event pairs, 9 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 387. Up to 44 conditions per place. [2023-11-26 11:50:04,229 INFO L140 encePairwiseOnDemand]: 235/238 looper letters, 14 selfloop transitions, 2 changer transitions 0/198 dead transitions. [2023-11-26 11:50:04,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 198 transitions, 436 flow [2023-11-26 11:50:04,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:04,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:50:04,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 638 transitions. [2023-11-26 11:50:04,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8935574229691877 [2023-11-26 11:50:04,234 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 638 transitions. [2023-11-26 11:50:04,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 638 transitions. [2023-11-26 11:50:04,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:04,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 638 transitions. [2023-11-26 11:50:04,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 212.66666666666666) internal successors, (638), 3 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,240 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,240 INFO L175 Difference]: Start difference. First operand has 198 places, 199 transitions, 406 flow. Second operand 3 states and 638 transitions. [2023-11-26 11:50:04,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 198 transitions, 436 flow [2023-11-26 11:50:04,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 198 transitions, 432 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:50:04,245 INFO L231 Difference]: Finished difference. Result has 197 places, 198 transitions, 404 flow [2023-11-26 11:50:04,246 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=197, PETRI_TRANSITIONS=198} [2023-11-26 11:50:04,249 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -16 predicate places. [2023-11-26 11:50:04,249 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 198 transitions, 404 flow [2023-11-26 11:50:04,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:04,251 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:04,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:50:04,251 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:04,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:04,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1740707111, now seen corresponding path program 1 times [2023-11-26 11:50:04,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:04,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438882457] [2023-11-26 11:50:04,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:04,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:04,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:04,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:04,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438882457] [2023-11-26 11:50:04,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438882457] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:04,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:04,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:04,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66017867] [2023-11-26 11:50:04,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:04,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:04,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:04,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:04,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:04,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 238 [2023-11-26 11:50:04,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 198 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:04,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 238 [2023-11-26 11:50:04,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:04,432 INFO L124 PetriNetUnfolderBase]: 25/298 cut-off events. [2023-11-26 11:50:04,432 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2023-11-26 11:50:04,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 298 events. 25/298 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 865 event pairs, 9 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 292. Up to 42 conditions per place. [2023-11-26 11:50:04,436 INFO L140 encePairwiseOnDemand]: 235/238 looper letters, 14 selfloop transitions, 2 changer transitions 0/197 dead transitions. [2023-11-26 11:50:04,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 197 transitions, 434 flow [2023-11-26 11:50:04,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:04,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:50:04,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 638 transitions. [2023-11-26 11:50:04,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8935574229691877 [2023-11-26 11:50:04,459 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 638 transitions. [2023-11-26 11:50:04,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 638 transitions. [2023-11-26 11:50:04,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:04,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 638 transitions. [2023-11-26 11:50:04,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 212.66666666666666) internal successors, (638), 3 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,466 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,466 INFO L175 Difference]: Start difference. First operand has 197 places, 198 transitions, 404 flow. Second operand 3 states and 638 transitions. [2023-11-26 11:50:04,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 197 transitions, 434 flow [2023-11-26 11:50:04,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 197 transitions, 430 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:50:04,473 INFO L231 Difference]: Finished difference. Result has 196 places, 197 transitions, 402 flow [2023-11-26 11:50:04,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=196, PETRI_TRANSITIONS=197} [2023-11-26 11:50:04,474 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -17 predicate places. [2023-11-26 11:50:04,474 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 197 transitions, 402 flow [2023-11-26 11:50:04,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:04,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:04,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:50:04,476 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:04,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:04,477 INFO L85 PathProgramCache]: Analyzing trace with hash 935006870, now seen corresponding path program 1 times [2023-11-26 11:50:04,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:04,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733297308] [2023-11-26 11:50:04,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:04,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:04,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:04,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:04,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733297308] [2023-11-26 11:50:04,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733297308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:04,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:04,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:04,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578385204] [2023-11-26 11:50:04,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:04,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:04,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:04,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:04,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:04,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 238 [2023-11-26 11:50:04,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 197 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:04,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 238 [2023-11-26 11:50:04,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:04,632 INFO L124 PetriNetUnfolderBase]: 28/366 cut-off events. [2023-11-26 11:50:04,632 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 11:50:04,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 366 events. 28/366 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1048 event pairs, 0 based on Foata normal form. 1/300 useless extension candidates. Maximal degree in co-relation 355. Up to 34 conditions per place. [2023-11-26 11:50:04,636 INFO L140 encePairwiseOnDemand]: 228/238 looper letters, 15 selfloop transitions, 5 changer transitions 5/201 dead transitions. [2023-11-26 11:50:04,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 201 transitions, 461 flow [2023-11-26 11:50:04,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:04,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:50:04,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 640 transitions. [2023-11-26 11:50:04,640 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.896358543417367 [2023-11-26 11:50:04,640 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 640 transitions. [2023-11-26 11:50:04,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 640 transitions. [2023-11-26 11:50:04,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:04,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 640 transitions. [2023-11-26 11:50:04,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,647 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,647 INFO L175 Difference]: Start difference. First operand has 196 places, 197 transitions, 402 flow. Second operand 3 states and 640 transitions. [2023-11-26 11:50:04,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 201 transitions, 461 flow [2023-11-26 11:50:04,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 201 transitions, 457 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:50:04,653 INFO L231 Difference]: Finished difference. Result has 193 places, 194 transitions, 414 flow [2023-11-26 11:50:04,654 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=414, PETRI_PLACES=193, PETRI_TRANSITIONS=194} [2023-11-26 11:50:04,655 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -20 predicate places. [2023-11-26 11:50:04,655 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 194 transitions, 414 flow [2023-11-26 11:50:04,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:04,656 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:04,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:50:04,657 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:04,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:04,657 INFO L85 PathProgramCache]: Analyzing trace with hash 893451055, now seen corresponding path program 1 times [2023-11-26 11:50:04,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:04,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901921370] [2023-11-26 11:50:04,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:04,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:04,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:04,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:04,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901921370] [2023-11-26 11:50:04,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901921370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:04,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:04,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:04,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611154461] [2023-11-26 11:50:04,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:04,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:04,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:04,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:04,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:04,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 238 [2023-11-26 11:50:04,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 194 transitions, 414 flow. Second operand has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:04,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 238 [2023-11-26 11:50:04,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:04,829 INFO L124 PetriNetUnfolderBase]: 55/428 cut-off events. [2023-11-26 11:50:04,830 INFO L125 PetriNetUnfolderBase]: For 50/52 co-relation queries the response was YES. [2023-11-26 11:50:04,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 428 events. 55/428 cut-off events. For 50/52 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1484 event pairs, 12 based on Foata normal form. 0/348 useless extension candidates. Maximal degree in co-relation 329. Up to 75 conditions per place. [2023-11-26 11:50:04,834 INFO L140 encePairwiseOnDemand]: 232/238 looper letters, 20 selfloop transitions, 3 changer transitions 0/195 dead transitions. [2023-11-26 11:50:04,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 195 transitions, 467 flow [2023-11-26 11:50:04,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:04,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:50:04,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 640 transitions. [2023-11-26 11:50:04,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.896358543417367 [2023-11-26 11:50:04,838 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 640 transitions. [2023-11-26 11:50:04,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 640 transitions. [2023-11-26 11:50:04,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:04,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 640 transitions. [2023-11-26 11:50:04,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,843 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,844 INFO L175 Difference]: Start difference. First operand has 193 places, 194 transitions, 414 flow. Second operand 3 states and 640 transitions. [2023-11-26 11:50:04,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 195 transitions, 467 flow [2023-11-26 11:50:04,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 195 transitions, 462 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:50:04,849 INFO L231 Difference]: Finished difference. Result has 189 places, 192 transitions, 416 flow [2023-11-26 11:50:04,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=416, PETRI_PLACES=189, PETRI_TRANSITIONS=192} [2023-11-26 11:50:04,853 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -24 predicate places. [2023-11-26 11:50:04,853 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 192 transitions, 416 flow [2023-11-26 11:50:04,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:04,854 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:04,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:50:04,855 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:04,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:04,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1786054222, now seen corresponding path program 1 times [2023-11-26 11:50:04,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:04,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589681555] [2023-11-26 11:50:04,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:04,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:04,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:04,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:04,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589681555] [2023-11-26 11:50:04,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589681555] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:04,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:04,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:04,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485934120] [2023-11-26 11:50:04,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:04,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:04,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:04,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:04,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:04,975 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 238 [2023-11-26 11:50:04,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 192 transitions, 416 flow. Second operand has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:04,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:04,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 238 [2023-11-26 11:50:04,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:05,076 INFO L124 PetriNetUnfolderBase]: 71/541 cut-off events. [2023-11-26 11:50:05,076 INFO L125 PetriNetUnfolderBase]: For 73/87 co-relation queries the response was YES. [2023-11-26 11:50:05,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 724 conditions, 541 events. 71/541 cut-off events. For 73/87 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2422 event pairs, 8 based on Foata normal form. 0/449 useless extension candidates. Maximal degree in co-relation 465. Up to 82 conditions per place. [2023-11-26 11:50:05,083 INFO L140 encePairwiseOnDemand]: 232/238 looper letters, 24 selfloop transitions, 3 changer transitions 0/197 dead transitions. [2023-11-26 11:50:05,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 197 transitions, 491 flow [2023-11-26 11:50:05,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:05,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:50:05,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 642 transitions. [2023-11-26 11:50:05,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8991596638655462 [2023-11-26 11:50:05,086 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 642 transitions. [2023-11-26 11:50:05,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 642 transitions. [2023-11-26 11:50:05,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:05,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 642 transitions. [2023-11-26 11:50:05,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:05,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:05,093 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:05,093 INFO L175 Difference]: Start difference. First operand has 189 places, 192 transitions, 416 flow. Second operand 3 states and 642 transitions. [2023-11-26 11:50:05,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 197 transitions, 491 flow [2023-11-26 11:50:05,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 197 transitions, 488 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:50:05,099 INFO L231 Difference]: Finished difference. Result has 188 places, 190 transitions, 420 flow [2023-11-26 11:50:05,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=420, PETRI_PLACES=188, PETRI_TRANSITIONS=190} [2023-11-26 11:50:05,100 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -25 predicate places. [2023-11-26 11:50:05,101 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 190 transitions, 420 flow [2023-11-26 11:50:05,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:05,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:05,102 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:05,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:50:05,102 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:05,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:05,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1492531029, now seen corresponding path program 1 times [2023-11-26 11:50:05,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:05,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68408704] [2023-11-26 11:50:05,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:05,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:05,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:05,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:05,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68408704] [2023-11-26 11:50:05,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68408704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:05,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:05,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:05,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365432664] [2023-11-26 11:50:05,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:05,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:05,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:05,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:05,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:05,204 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 238 [2023-11-26 11:50:05,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 190 transitions, 420 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:05,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:05,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 238 [2023-11-26 11:50:05,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:05,351 INFO L124 PetriNetUnfolderBase]: 70/690 cut-off events. [2023-11-26 11:50:05,352 INFO L125 PetriNetUnfolderBase]: For 56/63 co-relation queries the response was YES. [2023-11-26 11:50:05,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 906 conditions, 690 events. 70/690 cut-off events. For 56/63 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3583 event pairs, 14 based on Foata normal form. 2/584 useless extension candidates. Maximal degree in co-relation 436. Up to 114 conditions per place. [2023-11-26 11:50:05,357 INFO L140 encePairwiseOnDemand]: 234/238 looper letters, 17 selfloop transitions, 2 changer transitions 0/191 dead transitions. [2023-11-26 11:50:05,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 191 transitions, 461 flow [2023-11-26 11:50:05,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:05,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:50:05,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 647 transitions. [2023-11-26 11:50:05,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9061624649859944 [2023-11-26 11:50:05,360 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 647 transitions. [2023-11-26 11:50:05,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 647 transitions. [2023-11-26 11:50:05,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:05,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 647 transitions. [2023-11-26 11:50:05,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 215.66666666666666) internal successors, (647), 3 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:05,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:05,366 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:05,366 INFO L175 Difference]: Start difference. First operand has 188 places, 190 transitions, 420 flow. Second operand 3 states and 647 transitions. [2023-11-26 11:50:05,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 191 transitions, 461 flow [2023-11-26 11:50:05,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 191 transitions, 458 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:50:05,371 INFO L231 Difference]: Finished difference. Result has 188 places, 190 transitions, 427 flow [2023-11-26 11:50:05,372 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=427, PETRI_PLACES=188, PETRI_TRANSITIONS=190} [2023-11-26 11:50:05,373 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -25 predicate places. [2023-11-26 11:50:05,373 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 190 transitions, 427 flow [2023-11-26 11:50:05,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:05,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:05,374 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:05,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:50:05,374 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:05,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:05,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1803908897, now seen corresponding path program 1 times [2023-11-26 11:50:05,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:05,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219598833] [2023-11-26 11:50:05,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:05,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:05,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:05,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:05,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219598833] [2023-11-26 11:50:05,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219598833] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:05,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:05,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:05,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280112092] [2023-11-26 11:50:05,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:05,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:05,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:05,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:05,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:05,435 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 238 [2023-11-26 11:50:05,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 190 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:05,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:05,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 238 [2023-11-26 11:50:05,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:05,535 INFO L124 PetriNetUnfolderBase]: 73/550 cut-off events. [2023-11-26 11:50:05,535 INFO L125 PetriNetUnfolderBase]: For 59/77 co-relation queries the response was YES. [2023-11-26 11:50:05,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 550 events. 73/550 cut-off events. For 59/77 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2449 event pairs, 6 based on Foata normal form. 4/481 useless extension candidates. Maximal degree in co-relation 416. Up to 80 conditions per place. [2023-11-26 11:50:05,541 INFO L140 encePairwiseOnDemand]: 234/238 looper letters, 20 selfloop transitions, 2 changer transitions 0/193 dead transitions. [2023-11-26 11:50:05,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 193 transitions, 486 flow [2023-11-26 11:50:05,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:05,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:50:05,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 645 transitions. [2023-11-26 11:50:05,545 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9033613445378151 [2023-11-26 11:50:05,545 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 645 transitions. [2023-11-26 11:50:05,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 645 transitions. [2023-11-26 11:50:05,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:05,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 645 transitions. [2023-11-26 11:50:05,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:05,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:05,550 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:05,550 INFO L175 Difference]: Start difference. First operand has 188 places, 190 transitions, 427 flow. Second operand 3 states and 645 transitions. [2023-11-26 11:50:05,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 193 transitions, 486 flow [2023-11-26 11:50:05,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 193 transitions, 486 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:50:05,557 INFO L231 Difference]: Finished difference. Result has 188 places, 188 transitions, 427 flow [2023-11-26 11:50:05,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=427, PETRI_PLACES=188, PETRI_TRANSITIONS=188} [2023-11-26 11:50:05,558 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -25 predicate places. [2023-11-26 11:50:05,558 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 188 transitions, 427 flow [2023-11-26 11:50:05,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:05,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:05,559 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:05,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:50:05,559 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:05,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:05,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1237490563, now seen corresponding path program 1 times [2023-11-26 11:50:05,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:05,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422529177] [2023-11-26 11:50:05,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:05,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:06,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:06,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:06,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422529177] [2023-11-26 11:50:06,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422529177] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:06,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:06,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:50:06,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963306327] [2023-11-26 11:50:06,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:06,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:50:06,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:06,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:50:06,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:50:06,359 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 238 [2023-11-26 11:50:06,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 188 transitions, 427 flow. Second operand has 6 states, 6 states have (on average 208.5) internal successors, (1251), 6 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:06,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:06,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 238 [2023-11-26 11:50:06,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:06,519 INFO L124 PetriNetUnfolderBase]: 162/778 cut-off events. [2023-11-26 11:50:06,520 INFO L125 PetriNetUnfolderBase]: For 150/162 co-relation queries the response was YES. [2023-11-26 11:50:06,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1209 conditions, 778 events. 162/778 cut-off events. For 150/162 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3809 event pairs, 3 based on Foata normal form. 8/677 useless extension candidates. Maximal degree in co-relation 752. Up to 155 conditions per place. [2023-11-26 11:50:06,529 INFO L140 encePairwiseOnDemand]: 233/238 looper letters, 46 selfloop transitions, 4 changer transitions 0/219 dead transitions. [2023-11-26 11:50:06,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 219 transitions, 653 flow [2023-11-26 11:50:06,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:50:06,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:50:06,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1273 transitions. [2023-11-26 11:50:06,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8914565826330533 [2023-11-26 11:50:06,534 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1273 transitions. [2023-11-26 11:50:06,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1273 transitions. [2023-11-26 11:50:06,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:06,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1273 transitions. [2023-11-26 11:50:06,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 212.16666666666666) internal successors, (1273), 6 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:06,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:06,543 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:06,544 INFO L175 Difference]: Start difference. First operand has 188 places, 188 transitions, 427 flow. Second operand 6 states and 1273 transitions. [2023-11-26 11:50:06,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 219 transitions, 653 flow [2023-11-26 11:50:06,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 219 transitions, 649 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:50:06,552 INFO L231 Difference]: Finished difference. Result has 190 places, 187 transitions, 429 flow [2023-11-26 11:50:06,553 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=429, PETRI_PLACES=190, PETRI_TRANSITIONS=187} [2023-11-26 11:50:06,554 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -23 predicate places. [2023-11-26 11:50:06,554 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 187 transitions, 429 flow [2023-11-26 11:50:06,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 208.5) internal successors, (1251), 6 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:06,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:06,556 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:06,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:50:06,556 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:06,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:06,557 INFO L85 PathProgramCache]: Analyzing trace with hash -580871075, now seen corresponding path program 1 times [2023-11-26 11:50:06,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:06,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93899017] [2023-11-26 11:50:06,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:06,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:06,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:06,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:06,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93899017] [2023-11-26 11:50:06,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93899017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:06,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:06,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:06,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105989698] [2023-11-26 11:50:06,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:06,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:06,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:06,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:06,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:06,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 238 [2023-11-26 11:50:06,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 187 transitions, 429 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:06,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:06,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 238 [2023-11-26 11:50:06,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:06,715 INFO L124 PetriNetUnfolderBase]: 58/485 cut-off events. [2023-11-26 11:50:06,716 INFO L125 PetriNetUnfolderBase]: For 56/59 co-relation queries the response was YES. [2023-11-26 11:50:06,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 485 events. 58/485 cut-off events. For 56/59 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2039 event pairs, 4 based on Foata normal form. 1/437 useless extension candidates. Maximal degree in co-relation 532. Up to 58 conditions per place. [2023-11-26 11:50:06,720 INFO L140 encePairwiseOnDemand]: 234/238 looper letters, 20 selfloop transitions, 2 changer transitions 0/190 dead transitions. [2023-11-26 11:50:06,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 190 transitions, 488 flow [2023-11-26 11:50:06,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:06,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:50:06,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 645 transitions. [2023-11-26 11:50:06,741 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9033613445378151 [2023-11-26 11:50:06,742 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 645 transitions. [2023-11-26 11:50:06,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 645 transitions. [2023-11-26 11:50:06,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:06,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 645 transitions. [2023-11-26 11:50:06,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:06,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:06,747 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:06,747 INFO L175 Difference]: Start difference. First operand has 190 places, 187 transitions, 429 flow. Second operand 3 states and 645 transitions. [2023-11-26 11:50:06,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 190 transitions, 488 flow [2023-11-26 11:50:06,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 190 transitions, 481 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:50:06,753 INFO L231 Difference]: Finished difference. Result has 186 places, 185 transitions, 422 flow [2023-11-26 11:50:06,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=422, PETRI_PLACES=186, PETRI_TRANSITIONS=185} [2023-11-26 11:50:06,754 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -27 predicate places. [2023-11-26 11:50:06,754 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 185 transitions, 422 flow [2023-11-26 11:50:06,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:06,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:06,755 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:06,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:50:06,756 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:06,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:06,756 INFO L85 PathProgramCache]: Analyzing trace with hash 252837706, now seen corresponding path program 1 times [2023-11-26 11:50:06,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:06,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050496021] [2023-11-26 11:50:06,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:06,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:06,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:06,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:06,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:06,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050496021] [2023-11-26 11:50:06,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050496021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:06,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:06,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:06,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322469267] [2023-11-26 11:50:06,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:06,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:06,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:06,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:06,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:06,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 238 [2023-11-26 11:50:06,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 185 transitions, 422 flow. Second operand has 3 states, 3 states have (on average 211.66666666666666) internal successors, (635), 3 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:06,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:06,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 238 [2023-11-26 11:50:06,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:06,918 INFO L124 PetriNetUnfolderBase]: 68/607 cut-off events. [2023-11-26 11:50:06,919 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2023-11-26 11:50:06,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 856 conditions, 607 events. 68/607 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2969 event pairs, 18 based on Foata normal form. 0/549 useless extension candidates. Maximal degree in co-relation 571. Up to 91 conditions per place. [2023-11-26 11:50:06,925 INFO L140 encePairwiseOnDemand]: 235/238 looper letters, 19 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2023-11-26 11:50:06,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 187 transitions, 473 flow [2023-11-26 11:50:06,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:06,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:50:06,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 645 transitions. [2023-11-26 11:50:06,928 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9033613445378151 [2023-11-26 11:50:06,928 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 645 transitions. [2023-11-26 11:50:06,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 645 transitions. [2023-11-26 11:50:06,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:06,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 645 transitions. [2023-11-26 11:50:06,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:06,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:06,934 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:06,934 INFO L175 Difference]: Start difference. First operand has 186 places, 185 transitions, 422 flow. Second operand 3 states and 645 transitions. [2023-11-26 11:50:06,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 187 transitions, 473 flow [2023-11-26 11:50:06,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 187 transitions, 469 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:50:06,940 INFO L231 Difference]: Finished difference. Result has 185 places, 184 transitions, 420 flow [2023-11-26 11:50:06,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=420, PETRI_PLACES=185, PETRI_TRANSITIONS=184} [2023-11-26 11:50:06,943 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -28 predicate places. [2023-11-26 11:50:06,943 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 184 transitions, 420 flow [2023-11-26 11:50:06,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.66666666666666) internal successors, (635), 3 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:06,944 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:06,944 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:06,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:50:06,944 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:06,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:06,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1053509048, now seen corresponding path program 1 times [2023-11-26 11:50:06,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:06,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494829437] [2023-11-26 11:50:06,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:06,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:07,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:07,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:07,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494829437] [2023-11-26 11:50:07,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494829437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:07,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:07,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:07,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674902914] [2023-11-26 11:50:07,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:07,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:07,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:07,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:07,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:07,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 238 [2023-11-26 11:50:07,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 184 transitions, 420 flow. Second operand has 3 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:07,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:07,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 238 [2023-11-26 11:50:07,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:07,110 INFO L124 PetriNetUnfolderBase]: 58/479 cut-off events. [2023-11-26 11:50:07,110 INFO L125 PetriNetUnfolderBase]: For 56/59 co-relation queries the response was YES. [2023-11-26 11:50:07,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 676 conditions, 479 events. 58/479 cut-off events. For 56/59 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2016 event pairs, 10 based on Foata normal form. 0/436 useless extension candidates. Maximal degree in co-relation 526. Up to 80 conditions per place. [2023-11-26 11:50:07,114 INFO L140 encePairwiseOnDemand]: 235/238 looper letters, 19 selfloop transitions, 2 changer transitions 0/186 dead transitions. [2023-11-26 11:50:07,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 186 transitions, 471 flow [2023-11-26 11:50:07,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:07,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:50:07,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 645 transitions. [2023-11-26 11:50:07,118 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9033613445378151 [2023-11-26 11:50:07,118 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 645 transitions. [2023-11-26 11:50:07,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 645 transitions. [2023-11-26 11:50:07,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:07,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 645 transitions. [2023-11-26 11:50:07,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:07,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:07,123 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:07,124 INFO L175 Difference]: Start difference. First operand has 185 places, 184 transitions, 420 flow. Second operand 3 states and 645 transitions. [2023-11-26 11:50:07,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 186 transitions, 471 flow [2023-11-26 11:50:07,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 186 transitions, 467 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:50:07,129 INFO L231 Difference]: Finished difference. Result has 184 places, 183 transitions, 418 flow [2023-11-26 11:50:07,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=418, PETRI_PLACES=184, PETRI_TRANSITIONS=183} [2023-11-26 11:50:07,131 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -29 predicate places. [2023-11-26 11:50:07,132 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 183 transitions, 418 flow [2023-11-26 11:50:07,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:07,132 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:07,132 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:07,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:50:07,133 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:07,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:07,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1057703761, now seen corresponding path program 1 times [2023-11-26 11:50:07,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:07,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348194017] [2023-11-26 11:50:07,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:07,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:07,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:07,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:07,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348194017] [2023-11-26 11:50:07,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348194017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:07,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:07,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:07,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125251113] [2023-11-26 11:50:07,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:07,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:07,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:07,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:07,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:07,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 238 [2023-11-26 11:50:07,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 183 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:07,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:07,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 238 [2023-11-26 11:50:07,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:07,340 INFO L124 PetriNetUnfolderBase]: 78/601 cut-off events. [2023-11-26 11:50:07,341 INFO L125 PetriNetUnfolderBase]: For 70/76 co-relation queries the response was YES. [2023-11-26 11:50:07,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 877 conditions, 601 events. 78/601 cut-off events. For 70/76 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2646 event pairs, 18 based on Foata normal form. 0/547 useless extension candidates. Maximal degree in co-relation 679. Up to 101 conditions per place. [2023-11-26 11:50:07,383 INFO L140 encePairwiseOnDemand]: 235/238 looper letters, 21 selfloop transitions, 2 changer transitions 0/185 dead transitions. [2023-11-26 11:50:07,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 185 transitions, 473 flow [2023-11-26 11:50:07,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:07,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:50:07,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 643 transitions. [2023-11-26 11:50:07,387 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9005602240896359 [2023-11-26 11:50:07,387 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 643 transitions. [2023-11-26 11:50:07,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 643 transitions. [2023-11-26 11:50:07,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:07,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 643 transitions. [2023-11-26 11:50:07,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:07,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:07,403 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:07,411 INFO L175 Difference]: Start difference. First operand has 184 places, 183 transitions, 418 flow. Second operand 3 states and 643 transitions. [2023-11-26 11:50:07,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 185 transitions, 473 flow [2023-11-26 11:50:07,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 185 transitions, 469 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:50:07,418 INFO L231 Difference]: Finished difference. Result has 183 places, 182 transitions, 416 flow [2023-11-26 11:50:07,419 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=416, PETRI_PLACES=183, PETRI_TRANSITIONS=182} [2023-11-26 11:50:07,420 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -30 predicate places. [2023-11-26 11:50:07,420 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 182 transitions, 416 flow [2023-11-26 11:50:07,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:07,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:07,422 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:07,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 11:50:07,422 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:07,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:07,423 INFO L85 PathProgramCache]: Analyzing trace with hash 428800935, now seen corresponding path program 1 times [2023-11-26 11:50:07,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:07,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206652230] [2023-11-26 11:50:07,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:07,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:08,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:08,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:08,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206652230] [2023-11-26 11:50:08,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206652230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:08,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:08,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:50:08,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040297093] [2023-11-26 11:50:08,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:08,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:50:08,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:08,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:50:08,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:50:08,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 238 [2023-11-26 11:50:08,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 182 transitions, 416 flow. Second operand has 6 states, 6 states have (on average 208.66666666666666) internal successors, (1252), 6 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:08,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:08,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 238 [2023-11-26 11:50:08,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:08,288 INFO L124 PetriNetUnfolderBase]: 56/445 cut-off events. [2023-11-26 11:50:08,288 INFO L125 PetriNetUnfolderBase]: For 57/59 co-relation queries the response was YES. [2023-11-26 11:50:08,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 642 conditions, 445 events. 56/445 cut-off events. For 57/59 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1661 event pairs, 4 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 486. Up to 53 conditions per place. [2023-11-26 11:50:08,293 INFO L140 encePairwiseOnDemand]: 233/238 looper letters, 30 selfloop transitions, 4 changer transitions 0/197 dead transitions. [2023-11-26 11:50:08,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 197 transitions, 546 flow [2023-11-26 11:50:08,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:50:08,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:50:08,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1265 transitions. [2023-11-26 11:50:08,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8858543417366946 [2023-11-26 11:50:08,297 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1265 transitions. [2023-11-26 11:50:08,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1265 transitions. [2023-11-26 11:50:08,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:08,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1265 transitions. [2023-11-26 11:50:08,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.83333333333334) internal successors, (1265), 6 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:08,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:08,306 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 238.0) internal successors, (1666), 7 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:08,306 INFO L175 Difference]: Start difference. First operand has 183 places, 182 transitions, 416 flow. Second operand 6 states and 1265 transitions. [2023-11-26 11:50:08,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 197 transitions, 546 flow [2023-11-26 11:50:08,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 197 transitions, 542 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:50:08,311 INFO L231 Difference]: Finished difference. Result has 185 places, 181 transitions, 418 flow [2023-11-26 11:50:08,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=418, PETRI_PLACES=185, PETRI_TRANSITIONS=181} [2023-11-26 11:50:08,312 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -28 predicate places. [2023-11-26 11:50:08,312 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 181 transitions, 418 flow [2023-11-26 11:50:08,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 208.66666666666666) internal successors, (1252), 6 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:08,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:50:08,313 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:08,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 11:50:08,314 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-26 11:50:08,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:08,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1493918931, now seen corresponding path program 1 times [2023-11-26 11:50:08,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:08,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086477238] [2023-11-26 11:50:08,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:08,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:08,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:08,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:08,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086477238] [2023-11-26 11:50:08,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086477238] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:08,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:08,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:08,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829103068] [2023-11-26 11:50:08,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:08,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:08,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:08,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:08,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:08,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 238 [2023-11-26 11:50:08,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 181 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:08,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:50:08,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 238 [2023-11-26 11:50:08,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:50:08,466 INFO L124 PetriNetUnfolderBase]: 63/482 cut-off events. [2023-11-26 11:50:08,466 INFO L125 PetriNetUnfolderBase]: For 68/70 co-relation queries the response was YES. [2023-11-26 11:50:08,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 482 events. 63/482 cut-off events. For 68/70 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1978 event pairs, 10 based on Foata normal form. 0/442 useless extension candidates. Maximal degree in co-relation 662. Up to 87 conditions per place. [2023-11-26 11:50:08,469 INFO L140 encePairwiseOnDemand]: 235/238 looper letters, 0 selfloop transitions, 0 changer transitions 183/183 dead transitions. [2023-11-26 11:50:08,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 183 transitions, 473 flow [2023-11-26 11:50:08,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:08,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:50:08,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 643 transitions. [2023-11-26 11:50:08,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9005602240896359 [2023-11-26 11:50:08,472 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 643 transitions. [2023-11-26 11:50:08,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 643 transitions. [2023-11-26 11:50:08,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:50:08,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 643 transitions. [2023-11-26 11:50:08,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:08,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:08,477 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 238.0) internal successors, (952), 4 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:08,477 INFO L175 Difference]: Start difference. First operand has 185 places, 181 transitions, 418 flow. Second operand 3 states and 643 transitions. [2023-11-26 11:50:08,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 183 transitions, 473 flow [2023-11-26 11:50:08,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 183 transitions, 466 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:50:08,481 INFO L231 Difference]: Finished difference. Result has 182 places, 0 transitions, 0 flow [2023-11-26 11:50:08,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=182, PETRI_TRANSITIONS=0} [2023-11-26 11:50:08,482 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -31 predicate places. [2023-11-26 11:50:08,482 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 0 transitions, 0 flow [2023-11-26 11:50:08,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:50:08,485 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (59 of 60 remaining) [2023-11-26 11:50:08,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2023-11-26 11:50:08,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2023-11-26 11:50:08,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2023-11-26 11:50:08,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2023-11-26 11:50:08,486 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2023-11-26 11:50:08,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (53 of 60 remaining) [2023-11-26 11:50:08,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2023-11-26 11:50:08,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (51 of 60 remaining) [2023-11-26 11:50:08,487 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (50 of 60 remaining) [2023-11-26 11:50:08,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2023-11-26 11:50:08,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2023-11-26 11:50:08,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (47 of 60 remaining) [2023-11-26 11:50:08,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2023-11-26 11:50:08,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2023-11-26 11:50:08,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2023-11-26 11:50:08,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2023-11-26 11:50:08,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2023-11-26 11:50:08,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2023-11-26 11:50:08,489 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2023-11-26 11:50:08,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2023-11-26 11:50:08,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2023-11-26 11:50:08,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2023-11-26 11:50:08,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2023-11-26 11:50:08,490 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2023-11-26 11:50:08,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2023-11-26 11:50:08,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 60 remaining) [2023-11-26 11:50:08,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2023-11-26 11:50:08,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (31 of 60 remaining) [2023-11-26 11:50:08,491 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 60 remaining) [2023-11-26 11:50:08,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2023-11-26 11:50:08,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 60 remaining) [2023-11-26 11:50:08,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 60 remaining) [2023-11-26 11:50:08,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2023-11-26 11:50:08,492 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2023-11-26 11:50:08,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2023-11-26 11:50:08,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 60 remaining) [2023-11-26 11:50:08,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 60 remaining) [2023-11-26 11:50:08,493 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2023-11-26 11:50:08,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2023-11-26 11:50:08,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2023-11-26 11:50:08,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2023-11-26 11:50:08,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2023-11-26 11:50:08,494 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (16 of 60 remaining) [2023-11-26 11:50:08,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2023-11-26 11:50:08,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2023-11-26 11:50:08,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2023-11-26 11:50:08,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2023-11-26 11:50:08,495 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2023-11-26 11:50:08,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2023-11-26 11:50:08,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2023-11-26 11:50:08,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2023-11-26 11:50:08,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2023-11-26 11:50:08,496 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2023-11-26 11:50:08,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2023-11-26 11:50:08,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2023-11-26 11:50:08,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2023-11-26 11:50:08,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (2 of 60 remaining) [2023-11-26 11:50:08,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2023-11-26 11:50:08,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2023-11-26 11:50:08,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 11:50:08,498 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:08,504 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 11:50:08,504 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:50:08,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:50:08 BasicIcfg [2023-11-26 11:50:08,510 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:50:08,511 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:50:08,511 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:50:08,511 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:50:08,512 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:50:02" (3/4) ... [2023-11-26 11:50:08,513 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:50:08,516 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-26 11:50:08,517 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-26 11:50:08,523 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-26 11:50:08,523 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 11:50:08,524 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 11:50:08,524 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:50:08,638 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:50:08,638 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:50:08,639 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:50:08,640 INFO L158 Benchmark]: Toolchain (without parser) took 7622.35ms. Allocated memory was 178.3MB in the beginning and 287.3MB in the end (delta: 109.1MB). Free memory was 133.5MB in the beginning and 175.4MB in the end (delta: -41.9MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2023-11-26 11:50:08,640 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:50:08,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.72ms. Allocated memory is still 178.3MB. Free memory was 133.0MB in the beginning and 121.2MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:50:08,641 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.48ms. Allocated memory is still 178.3MB. Free memory was 121.2MB in the beginning and 119.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:50:08,641 INFO L158 Benchmark]: Boogie Preprocessor took 40.45ms. Allocated memory is still 178.3MB. Free memory was 118.8MB in the beginning and 117.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:50:08,641 INFO L158 Benchmark]: RCFGBuilder took 750.44ms. Allocated memory is still 178.3MB. Free memory was 117.3MB in the beginning and 91.6MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-26 11:50:08,642 INFO L158 Benchmark]: TraceAbstraction took 6336.69ms. Allocated memory was 178.3MB in the beginning and 287.3MB in the end (delta: 109.1MB). Free memory was 91.1MB in the beginning and 180.6MB in the end (delta: -89.6MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2023-11-26 11:50:08,642 INFO L158 Benchmark]: Witness Printer took 128.10ms. Allocated memory is still 287.3MB. Free memory was 180.6MB in the beginning and 175.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:50:08,645 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.72ms. Allocated memory is still 178.3MB. Free memory was 133.0MB in the beginning and 121.2MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.48ms. Allocated memory is still 178.3MB. Free memory was 121.2MB in the beginning and 119.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.45ms. Allocated memory is still 178.3MB. Free memory was 118.8MB in the beginning and 117.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 750.44ms. Allocated memory is still 178.3MB. Free memory was 117.3MB in the beginning and 91.6MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 6336.69ms. Allocated memory was 178.3MB in the beginning and 287.3MB in the end (delta: 109.1MB). Free memory was 91.1MB in the beginning and 180.6MB in the end (delta: -89.6MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * Witness Printer took 128.10ms. Allocated memory is still 287.3MB. Free memory was 180.6MB in the beginning and 175.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 313 locations, 60 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.1s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 562 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 224 mSDsluCounter, 114 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 851 IncrementalHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 114 mSDtfsCounter, 851 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=442occurred in iteration=0, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1286 NumberOfCodeBlocks, 1286 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1268 ConstructedInterpolants, 0 QuantifiedInterpolants, 1462 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 11:50:08,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d665d02-8ef3-4a88-b509-d7210a57f227/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE