./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87acc4ca-9027-4dfa-b1bd-3747dd8ce99a/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87acc4ca-9027-4dfa-b1bd-3747dd8ce99a/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_87acc4ca-9027-4dfa-b1bd-3747dd8ce99a/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87acc4ca-9027-4dfa-b1bd-3747dd8ce99a/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87acc4ca-9027-4dfa-b1bd-3747dd8ce99a/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_87acc4ca-9027-4dfa-b1bd-3747dd8ce99a/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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:46:25,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:46:25,903 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87acc4ca-9027-4dfa-b1bd-3747dd8ce99a/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:46:25,917 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:46:25,918 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:46:25,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:46:25,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:46:25,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:46:25,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:46:25,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:46:25,984 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:46:25,985 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:46:25,985 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:46:25,988 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:46:25,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:46:25,989 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:46:25,989 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:46:25,990 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:46:25,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:46:25,991 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:46:25,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:46:25,992 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:46:25,992 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:46:25,993 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:46:25,993 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:46:25,994 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:46:25,994 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:46:25,995 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:46:25,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:46:25,996 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:46:25,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:46:25,998 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:46:25,999 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:46:25,999 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:46:25,999 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:46:26,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:46:26,001 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:46:26,001 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:46:26,001 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:46:26,002 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:46:26,002 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:46:26,003 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_87acc4ca-9027-4dfa-b1bd-3747dd8ce99a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87acc4ca-9027-4dfa-b1bd-3747dd8ce99a/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2023-11-26 10:46:26,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:46:26,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:46:26,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:46:26,453 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:46:26,454 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:46:26,456 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87acc4ca-9027-4dfa-b1bd-3747dd8ce99a/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2023-11-26 10:46:29,676 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:46:30,029 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:46:30,030 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87acc4ca-9027-4dfa-b1bd-3747dd8ce99a/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2023-11-26 10:46:30,050 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87acc4ca-9027-4dfa-b1bd-3747dd8ce99a/bin/uautomizer-verify-VRDe98Ueme/data/019e1453d/0fe524b0d74d47488aef4e7128efec01/FLAGc2099d2c5 [2023-11-26 10:46:30,067 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87acc4ca-9027-4dfa-b1bd-3747dd8ce99a/bin/uautomizer-verify-VRDe98Ueme/data/019e1453d/0fe524b0d74d47488aef4e7128efec01 [2023-11-26 10:46:30,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:46:30,072 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:46:30,074 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:30,074 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:46:30,086 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:46:30,090 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:30" (1/1) ... [2023-11-26 10:46:30,091 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@771b62ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:30, skipping insertion in model container [2023-11-26 10:46:30,091 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:30" (1/1) ... [2023-11-26 10:46:30,174 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:46:30,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:46:30,878 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:46:30,966 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:46:31,086 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:46:31,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31 WrapperNode [2023-11-26 10:46:31,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:31,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:46:31,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:46:31,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:46:31,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,138 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,200 INFO L138 Inliner]: procedures = 264, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2023-11-26 10:46:31,200 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:46:31,201 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:46:31,201 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:46:31,201 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:46:31,215 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,229 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,230 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,246 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,248 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,251 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,262 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,269 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:46:31,270 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:46:31,270 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:46:31,270 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:46:31,271 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (1/1) ... [2023-11-26 10:46:31,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:46:31,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87acc4ca-9027-4dfa-b1bd-3747dd8ce99a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:31,320 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87acc4ca-9027-4dfa-b1bd-3747dd8ce99a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:31,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87acc4ca-9027-4dfa-b1bd-3747dd8ce99a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:46:31,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:46:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:46:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 10:46:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:46:31,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:46:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 10:46:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:46:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-26 10:46:31,370 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-26 10:46:31,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:46:31,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:46:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:46:31,373 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 10:46:31,600 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:46:31,603 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:46:31,997 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:46:32,025 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:46:32,025 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 10:46:32,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:32 BoogieIcfgContainer [2023-11-26 10:46:32,027 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:46:32,030 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:46:32,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:46:32,042 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:46:32,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:46:30" (1/3) ... [2023-11-26 10:46:32,043 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5f7c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:46:32, skipping insertion in model container [2023-11-26 10:46:32,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:31" (2/3) ... [2023-11-26 10:46:32,044 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5f7c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:46:32, skipping insertion in model container [2023-11-26 10:46:32,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:32" (3/3) ... [2023-11-26 10:46:32,046 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2023-11-26 10:46:32,056 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:46:32,070 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:46:32,070 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-11-26 10:46:32,070 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:46:32,218 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-26 10:46:32,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 104 transitions, 215 flow [2023-11-26 10:46:32,337 INFO L124 PetriNetUnfolderBase]: 0/103 cut-off events. [2023-11-26 10:46:32,337 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 10:46:32,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 103 events. 0/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-26 10:46:32,341 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 104 transitions, 215 flow [2023-11-26 10:46:32,347 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 95 transitions, 193 flow [2023-11-26 10:46:32,359 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:46:32,367 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;@12ca9608, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:46:32,368 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-26 10:46:32,387 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:46:32,387 INFO L124 PetriNetUnfolderBase]: 0/54 cut-off events. [2023-11-26 10:46:32,387 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:46:32,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:32,388 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 10:46:32,389 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 10:46:32,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:32,395 INFO L85 PathProgramCache]: Analyzing trace with hash 342145545, now seen corresponding path program 1 times [2023-11-26 10:46:32,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:32,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895427795] [2023-11-26 10:46:32,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:32,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:33,652 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 10:46:33,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:33,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895427795] [2023-11-26 10:46:33,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895427795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:33,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:33,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:46:33,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137232000] [2023-11-26 10:46:33,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:33,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:46:33,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:33,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:46:33,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:46:34,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 104 [2023-11-26 10:46:34,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 95 transitions, 193 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 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 10:46:34,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:34,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 104 [2023-11-26 10:46:34,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:34,418 INFO L124 PetriNetUnfolderBase]: 114/583 cut-off events. [2023-11-26 10:46:34,419 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 10:46:34,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 844 conditions, 583 events. 114/583 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3269 event pairs, 61 based on Foata normal form. 0/535 useless extension candidates. Maximal degree in co-relation 809. Up to 207 conditions per place. [2023-11-26 10:46:34,435 INFO L140 encePairwiseOnDemand]: 93/104 looper letters, 30 selfloop transitions, 22 changer transitions 0/124 dead transitions. [2023-11-26 10:46:34,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 124 transitions, 355 flow [2023-11-26 10:46:34,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:46:34,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:46:34,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 533 transitions. [2023-11-26 10:46:34,465 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8541666666666666 [2023-11-26 10:46:34,466 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 533 transitions. [2023-11-26 10:46:34,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 533 transitions. [2023-11-26 10:46:34,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:34,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 533 transitions. [2023-11-26 10:46:34,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.83333333333333) internal successors, (533), 6 states have internal predecessors, (533), 0 states have call successors, (0), 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 10:46:34,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 0 states have call successors, (0), 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 10:46:34,493 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 0 states have call successors, (0), 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 10:46:34,495 INFO L175 Difference]: Start difference. First operand has 99 places, 95 transitions, 193 flow. Second operand 6 states and 533 transitions. [2023-11-26 10:46:34,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 124 transitions, 355 flow [2023-11-26 10:46:34,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 124 transitions, 354 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:46:34,510 INFO L231 Difference]: Finished difference. Result has 108 places, 116 transitions, 342 flow [2023-11-26 10:46:34,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=342, PETRI_PLACES=108, PETRI_TRANSITIONS=116} [2023-11-26 10:46:34,517 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 9 predicate places. [2023-11-26 10:46:34,518 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 116 transitions, 342 flow [2023-11-26 10:46:34,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 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 10:46:34,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:34,519 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] [2023-11-26 10:46:34,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:46:34,520 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 10:46:34,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:34,522 INFO L85 PathProgramCache]: Analyzing trace with hash 426447221, now seen corresponding path program 1 times [2023-11-26 10:46:34,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:34,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790253303] [2023-11-26 10:46:34,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:34,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:35,180 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 10:46:35,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:35,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790253303] [2023-11-26 10:46:35,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790253303] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:35,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:35,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:46:35,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676810335] [2023-11-26 10:46:35,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:35,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:46:35,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:35,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:46:35,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:46:35,554 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 104 [2023-11-26 10:46:35,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 116 transitions, 342 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 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 10:46:35,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:35,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 104 [2023-11-26 10:46:35,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:35,830 INFO L124 PetriNetUnfolderBase]: 152/672 cut-off events. [2023-11-26 10:46:35,831 INFO L125 PetriNetUnfolderBase]: For 136/155 co-relation queries the response was YES. [2023-11-26 10:46:35,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1190 conditions, 672 events. 152/672 cut-off events. For 136/155 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3935 event pairs, 61 based on Foata normal form. 5/636 useless extension candidates. Maximal degree in co-relation 1151. Up to 264 conditions per place. [2023-11-26 10:46:35,843 INFO L140 encePairwiseOnDemand]: 93/104 looper letters, 43 selfloop transitions, 26 changer transitions 0/145 dead transitions. [2023-11-26 10:46:35,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 145 transitions, 556 flow [2023-11-26 10:46:35,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:46:35,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:46:35,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 533 transitions. [2023-11-26 10:46:35,847 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8541666666666666 [2023-11-26 10:46:35,847 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 533 transitions. [2023-11-26 10:46:35,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 533 transitions. [2023-11-26 10:46:35,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:35,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 533 transitions. [2023-11-26 10:46:35,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.83333333333333) internal successors, (533), 6 states have internal predecessors, (533), 0 states have call successors, (0), 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 10:46:35,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 0 states have call successors, (0), 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 10:46:35,855 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 0 states have call successors, (0), 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 10:46:35,856 INFO L175 Difference]: Start difference. First operand has 108 places, 116 transitions, 342 flow. Second operand 6 states and 533 transitions. [2023-11-26 10:46:35,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 145 transitions, 556 flow [2023-11-26 10:46:35,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 145 transitions, 556 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:46:35,885 INFO L231 Difference]: Finished difference. Result has 118 places, 137 transitions, 526 flow [2023-11-26 10:46:35,886 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=526, PETRI_PLACES=118, PETRI_TRANSITIONS=137} [2023-11-26 10:46:35,887 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 19 predicate places. [2023-11-26 10:46:35,887 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 137 transitions, 526 flow [2023-11-26 10:46:35,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 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 10:46:35,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:35,889 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 10:46:35,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:46:35,891 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 10:46:35,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:35,897 INFO L85 PathProgramCache]: Analyzing trace with hash -581066231, now seen corresponding path program 1 times [2023-11-26 10:46:35,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:35,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797965723] [2023-11-26 10:46:35,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:35,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:36,365 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 10:46:36,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:36,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797965723] [2023-11-26 10:46:36,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797965723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:36,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:36,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:46:36,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744491765] [2023-11-26 10:46:36,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:36,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:46:36,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:36,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:46:36,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:46:36,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 104 [2023-11-26 10:46:36,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 137 transitions, 526 flow. Second operand has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 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 10:46:36,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:36,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 104 [2023-11-26 10:46:36,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:36,936 INFO L124 PetriNetUnfolderBase]: 408/1252 cut-off events. [2023-11-26 10:46:36,936 INFO L125 PetriNetUnfolderBase]: For 683/707 co-relation queries the response was YES. [2023-11-26 10:46:36,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2946 conditions, 1252 events. 408/1252 cut-off events. For 683/707 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 7826 event pairs, 153 based on Foata normal form. 7/1185 useless extension candidates. Maximal degree in co-relation 2902. Up to 736 conditions per place. [2023-11-26 10:46:36,948 INFO L140 encePairwiseOnDemand]: 85/104 looper letters, 76 selfloop transitions, 69 changer transitions 0/208 dead transitions. [2023-11-26 10:46:36,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 208 transitions, 1092 flow [2023-11-26 10:46:36,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:46:36,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:46:36,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 515 transitions. [2023-11-26 10:46:36,952 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8253205128205128 [2023-11-26 10:46:36,952 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 515 transitions. [2023-11-26 10:46:36,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 515 transitions. [2023-11-26 10:46:36,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:36,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 515 transitions. [2023-11-26 10:46:36,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 0 states have call successors, (0), 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 10:46:36,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 0 states have call successors, (0), 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 10:46:36,957 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 0 states have call successors, (0), 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 10:46:36,958 INFO L175 Difference]: Start difference. First operand has 118 places, 137 transitions, 526 flow. Second operand 6 states and 515 transitions. [2023-11-26 10:46:36,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 208 transitions, 1092 flow [2023-11-26 10:46:36,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 208 transitions, 1092 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:46:36,970 INFO L231 Difference]: Finished difference. Result has 128 places, 200 transitions, 1112 flow [2023-11-26 10:46:36,970 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1112, PETRI_PLACES=128, PETRI_TRANSITIONS=200} [2023-11-26 10:46:36,971 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 29 predicate places. [2023-11-26 10:46:36,972 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 200 transitions, 1112 flow [2023-11-26 10:46:36,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 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 10:46:36,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:36,973 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] [2023-11-26 10:46:36,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:46:36,973 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 10:46:36,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:36,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1328891558, now seen corresponding path program 1 times [2023-11-26 10:46:36,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:36,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055721258] [2023-11-26 10:46:36,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:36,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:37,366 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 10:46:37,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:37,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055721258] [2023-11-26 10:46:37,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055721258] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:37,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:37,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:46:37,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723197372] [2023-11-26 10:46:37,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:37,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:46:37,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:37,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:46:37,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:46:37,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 104 [2023-11-26 10:46:37,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 200 transitions, 1112 flow. Second operand has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 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 10:46:37,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:37,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 104 [2023-11-26 10:46:37,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:38,012 INFO L124 PetriNetUnfolderBase]: 485/1455 cut-off events. [2023-11-26 10:46:38,013 INFO L125 PetriNetUnfolderBase]: For 1753/1804 co-relation queries the response was YES. [2023-11-26 10:46:38,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4290 conditions, 1455 events. 485/1455 cut-off events. For 1753/1804 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 9415 event pairs, 135 based on Foata normal form. 8/1414 useless extension candidates. Maximal degree in co-relation 4241. Up to 838 conditions per place. [2023-11-26 10:46:38,031 INFO L140 encePairwiseOnDemand]: 89/104 looper letters, 129 selfloop transitions, 67 changer transitions 0/261 dead transitions. [2023-11-26 10:46:38,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 261 transitions, 1850 flow [2023-11-26 10:46:38,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:46:38,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:46:38,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 499 transitions. [2023-11-26 10:46:38,034 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7996794871794872 [2023-11-26 10:46:38,035 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 499 transitions. [2023-11-26 10:46:38,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 499 transitions. [2023-11-26 10:46:38,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:38,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 499 transitions. [2023-11-26 10:46:38,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 0 states have call successors, (0), 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 10:46:38,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 0 states have call successors, (0), 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 10:46:38,041 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 0 states have call successors, (0), 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 10:46:38,042 INFO L175 Difference]: Start difference. First operand has 128 places, 200 transitions, 1112 flow. Second operand 6 states and 499 transitions. [2023-11-26 10:46:38,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 261 transitions, 1850 flow [2023-11-26 10:46:38,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 261 transitions, 1786 flow, removed 32 selfloop flow, removed 0 redundant places. [2023-11-26 10:46:38,072 INFO L231 Difference]: Finished difference. Result has 138 places, 253 transitions, 1700 flow [2023-11-26 10:46:38,073 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1054, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1700, PETRI_PLACES=138, PETRI_TRANSITIONS=253} [2023-11-26 10:46:38,075 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 39 predicate places. [2023-11-26 10:46:38,075 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 253 transitions, 1700 flow [2023-11-26 10:46:38,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 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 10:46:38,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:38,076 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] [2023-11-26 10:46:38,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:46:38,077 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 10:46:38,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:38,077 INFO L85 PathProgramCache]: Analyzing trace with hash 12029893, now seen corresponding path program 1 times [2023-11-26 10:46:38,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:38,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458551183] [2023-11-26 10:46:38,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:38,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:38,881 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 10:46:38,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:38,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458551183] [2023-11-26 10:46:38,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458551183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:38,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:38,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 10:46:38,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361550722] [2023-11-26 10:46:38,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:38,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 10:46:38,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:38,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 10:46:38,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:46:39,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 104 [2023-11-26 10:46:39,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 253 transitions, 1700 flow. Second operand has 13 states, 13 states have (on average 72.3076923076923) internal successors, (940), 13 states have internal predecessors, (940), 0 states have call successors, (0), 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 10:46:39,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:39,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 104 [2023-11-26 10:46:39,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:41,222 INFO L124 PetriNetUnfolderBase]: 864/2501 cut-off events. [2023-11-26 10:46:41,222 INFO L125 PetriNetUnfolderBase]: For 5298/5402 co-relation queries the response was YES. [2023-11-26 10:46:41,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8452 conditions, 2501 events. 864/2501 cut-off events. For 5298/5402 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 18264 event pairs, 63 based on Foata normal form. 42/2511 useless extension candidates. Maximal degree in co-relation 8396. Up to 629 conditions per place. [2023-11-26 10:46:41,260 INFO L140 encePairwiseOnDemand]: 83/104 looper letters, 318 selfloop transitions, 86 changer transitions 0/509 dead transitions. [2023-11-26 10:46:41,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 509 transitions, 4458 flow [2023-11-26 10:46:41,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 10:46:41,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-26 10:46:41,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1210 transitions. [2023-11-26 10:46:41,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7756410256410257 [2023-11-26 10:46:41,271 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1210 transitions. [2023-11-26 10:46:41,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1210 transitions. [2023-11-26 10:46:41,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:41,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1210 transitions. [2023-11-26 10:46:41,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 80.66666666666667) internal successors, (1210), 15 states have internal predecessors, (1210), 0 states have call successors, (0), 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 10:46:41,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 104.0) internal successors, (1664), 16 states have internal predecessors, (1664), 0 states have call successors, (0), 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 10:46:41,285 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 104.0) internal successors, (1664), 16 states have internal predecessors, (1664), 0 states have call successors, (0), 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 10:46:41,285 INFO L175 Difference]: Start difference. First operand has 138 places, 253 transitions, 1700 flow. Second operand 15 states and 1210 transitions. [2023-11-26 10:46:41,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 509 transitions, 4458 flow [2023-11-26 10:46:41,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 509 transitions, 4328 flow, removed 65 selfloop flow, removed 0 redundant places. [2023-11-26 10:46:41,363 INFO L231 Difference]: Finished difference. Result has 164 places, 324 transitions, 2635 flow [2023-11-26 10:46:41,364 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1626, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2635, PETRI_PLACES=164, PETRI_TRANSITIONS=324} [2023-11-26 10:46:41,367 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 65 predicate places. [2023-11-26 10:46:41,367 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 324 transitions, 2635 flow [2023-11-26 10:46:41,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 72.3076923076923) internal successors, (940), 13 states have internal predecessors, (940), 0 states have call successors, (0), 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 10:46:41,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:41,369 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] [2023-11-26 10:46:41,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:46:41,369 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 10:46:41,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:41,371 INFO L85 PathProgramCache]: Analyzing trace with hash -999243145, now seen corresponding path program 2 times [2023-11-26 10:46:41,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:41,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949826941] [2023-11-26 10:46:41,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:41,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:42,204 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 10:46:42,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:42,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949826941] [2023-11-26 10:46:42,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949826941] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:42,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:42,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 10:46:42,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815739480] [2023-11-26 10:46:42,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:42,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 10:46:42,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:42,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 10:46:42,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:46:43,064 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 104 [2023-11-26 10:46:43,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 324 transitions, 2635 flow. Second operand has 13 states, 13 states have (on average 72.3076923076923) internal successors, (940), 13 states have internal predecessors, (940), 0 states have call successors, (0), 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 10:46:43,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:43,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 104 [2023-11-26 10:46:43,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:44,804 INFO L124 PetriNetUnfolderBase]: 1320/3657 cut-off events. [2023-11-26 10:46:44,804 INFO L125 PetriNetUnfolderBase]: For 12087/12321 co-relation queries the response was YES. [2023-11-26 10:46:44,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14008 conditions, 3657 events. 1320/3657 cut-off events. For 12087/12321 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 29118 event pairs, 116 based on Foata normal form. 89/3701 useless extension candidates. Maximal degree in co-relation 13937. Up to 945 conditions per place. [2023-11-26 10:46:44,871 INFO L140 encePairwiseOnDemand]: 83/104 looper letters, 340 selfloop transitions, 137 changer transitions 0/582 dead transitions. [2023-11-26 10:46:44,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 582 transitions, 5881 flow [2023-11-26 10:46:44,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 10:46:44,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-26 10:46:44,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1152 transitions. [2023-11-26 10:46:44,877 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7912087912087912 [2023-11-26 10:46:44,878 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1152 transitions. [2023-11-26 10:46:44,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1152 transitions. [2023-11-26 10:46:44,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:44,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1152 transitions. [2023-11-26 10:46:44,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 82.28571428571429) internal successors, (1152), 14 states have internal predecessors, (1152), 0 states have call successors, (0), 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 10:46:44,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 104.0) internal successors, (1560), 15 states have internal predecessors, (1560), 0 states have call successors, (0), 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 10:46:44,891 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 104.0) internal successors, (1560), 15 states have internal predecessors, (1560), 0 states have call successors, (0), 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 10:46:44,892 INFO L175 Difference]: Start difference. First operand has 164 places, 324 transitions, 2635 flow. Second operand 14 states and 1152 transitions. [2023-11-26 10:46:44,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 582 transitions, 5881 flow [2023-11-26 10:46:45,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 582 transitions, 5858 flow, removed 10 selfloop flow, removed 2 redundant places. [2023-11-26 10:46:45,154 INFO L231 Difference]: Finished difference. Result has 185 places, 413 transitions, 4292 flow [2023-11-26 10:46:45,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=2616, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4292, PETRI_PLACES=185, PETRI_TRANSITIONS=413} [2023-11-26 10:46:45,158 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 86 predicate places. [2023-11-26 10:46:45,159 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 413 transitions, 4292 flow [2023-11-26 10:46:45,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 72.3076923076923) internal successors, (940), 13 states have internal predecessors, (940), 0 states have call successors, (0), 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 10:46:45,160 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:45,160 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] [2023-11-26 10:46:45,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:46:45,160 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 10:46:45,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:45,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2105302477, now seen corresponding path program 3 times [2023-11-26 10:46:45,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:45,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688194205] [2023-11-26 10:46:45,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:45,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:45,918 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 10:46:45,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:45,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688194205] [2023-11-26 10:46:45,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688194205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:45,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:45,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 10:46:45,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958892121] [2023-11-26 10:46:45,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:45,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 10:46:45,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:45,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 10:46:45,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:46:46,787 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 104 [2023-11-26 10:46:46,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 413 transitions, 4292 flow. Second operand has 13 states, 13 states have (on average 72.3076923076923) internal successors, (940), 13 states have internal predecessors, (940), 0 states have call successors, (0), 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 10:46:46,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:46,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 104 [2023-11-26 10:46:46,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:49,025 INFO L124 PetriNetUnfolderBase]: 1659/4590 cut-off events. [2023-11-26 10:46:49,025 INFO L125 PetriNetUnfolderBase]: For 22070/22469 co-relation queries the response was YES. [2023-11-26 10:46:49,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19151 conditions, 4590 events. 1659/4590 cut-off events. For 22070/22469 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 38837 event pairs, 141 based on Foata normal form. 156/4691 useless extension candidates. Maximal degree in co-relation 19069. Up to 917 conditions per place. [2023-11-26 10:46:49,113 INFO L140 encePairwiseOnDemand]: 83/104 looper letters, 571 selfloop transitions, 161 changer transitions 0/837 dead transitions. [2023-11-26 10:46:49,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 837 transitions, 9752 flow [2023-11-26 10:46:49,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-26 10:46:49,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-26 10:46:49,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1322 transitions. [2023-11-26 10:46:49,120 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7944711538461539 [2023-11-26 10:46:49,120 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1322 transitions. [2023-11-26 10:46:49,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1322 transitions. [2023-11-26 10:46:49,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:49,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1322 transitions. [2023-11-26 10:46:49,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 82.625) internal successors, (1322), 16 states have internal predecessors, (1322), 0 states have call successors, (0), 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 10:46:49,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 104.0) internal successors, (1768), 17 states have internal predecessors, (1768), 0 states have call successors, (0), 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 10:46:49,132 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 104.0) internal successors, (1768), 17 states have internal predecessors, (1768), 0 states have call successors, (0), 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 10:46:49,132 INFO L175 Difference]: Start difference. First operand has 185 places, 413 transitions, 4292 flow. Second operand 16 states and 1322 transitions. [2023-11-26 10:46:49,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 837 transitions, 9752 flow [2023-11-26 10:46:49,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 837 transitions, 9697 flow, removed 26 selfloop flow, removed 2 redundant places. [2023-11-26 10:46:49,316 INFO L231 Difference]: Finished difference. Result has 209 places, 488 transitions, 5973 flow [2023-11-26 10:46:49,317 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=4245, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=5973, PETRI_PLACES=209, PETRI_TRANSITIONS=488} [2023-11-26 10:46:49,317 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 110 predicate places. [2023-11-26 10:46:49,318 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 488 transitions, 5973 flow [2023-11-26 10:46:49,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 72.3076923076923) internal successors, (940), 13 states have internal predecessors, (940), 0 states have call successors, (0), 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 10:46:49,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:49,319 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] [2023-11-26 10:46:49,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:46:49,319 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 10:46:49,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:49,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1059690299, now seen corresponding path program 4 times [2023-11-26 10:46:49,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:49,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196261531] [2023-11-26 10:46:49,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:49,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:50,060 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 10:46:50,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:50,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196261531] [2023-11-26 10:46:50,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196261531] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:50,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:50,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 10:46:50,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004433624] [2023-11-26 10:46:50,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:50,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 10:46:50,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:50,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 10:46:50,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:46:51,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 104 [2023-11-26 10:46:51,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 488 transitions, 5973 flow. Second operand has 13 states, 13 states have (on average 72.3076923076923) internal successors, (940), 13 states have internal predecessors, (940), 0 states have call successors, (0), 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 10:46:51,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:51,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 104 [2023-11-26 10:46:51,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:54,214 INFO L124 PetriNetUnfolderBase]: 2194/5972 cut-off events. [2023-11-26 10:46:54,215 INFO L125 PetriNetUnfolderBase]: For 40867/41503 co-relation queries the response was YES. [2023-11-26 10:46:54,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26942 conditions, 5972 events. 2194/5972 cut-off events. For 40867/41503 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 53225 event pairs, 174 based on Foata normal form. 175/6081 useless extension candidates. Maximal degree in co-relation 26848. Up to 2256 conditions per place. [2023-11-26 10:46:54,336 INFO L140 encePairwiseOnDemand]: 83/104 looper letters, 481 selfloop transitions, 216 changer transitions 0/802 dead transitions. [2023-11-26 10:46:54,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 802 transitions, 10895 flow [2023-11-26 10:46:54,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 10:46:54,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-26 10:46:54,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1152 transitions. [2023-11-26 10:46:54,342 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7912087912087912 [2023-11-26 10:46:54,342 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1152 transitions. [2023-11-26 10:46:54,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1152 transitions. [2023-11-26 10:46:54,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:54,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1152 transitions. [2023-11-26 10:46:54,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 82.28571428571429) internal successors, (1152), 14 states have internal predecessors, (1152), 0 states have call successors, (0), 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 10:46:54,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 104.0) internal successors, (1560), 15 states have internal predecessors, (1560), 0 states have call successors, (0), 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 10:46:54,354 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 104.0) internal successors, (1560), 15 states have internal predecessors, (1560), 0 states have call successors, (0), 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 10:46:54,354 INFO L175 Difference]: Start difference. First operand has 209 places, 488 transitions, 5973 flow. Second operand 14 states and 1152 transitions. [2023-11-26 10:46:54,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 802 transitions, 10895 flow [2023-11-26 10:46:54,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 802 transitions, 10597 flow, removed 73 selfloop flow, removed 4 redundant places. [2023-11-26 10:46:54,821 INFO L231 Difference]: Finished difference. Result has 227 places, 594 transitions, 8292 flow [2023-11-26 10:46:54,823 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=5777, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8292, PETRI_PLACES=227, PETRI_TRANSITIONS=594} [2023-11-26 10:46:54,826 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 128 predicate places. [2023-11-26 10:46:54,826 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 594 transitions, 8292 flow [2023-11-26 10:46:54,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 72.3076923076923) internal successors, (940), 13 states have internal predecessors, (940), 0 states have call successors, (0), 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 10:46:54,827 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:54,828 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] [2023-11-26 10:46:54,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:46:54,828 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 10:46:54,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:54,829 INFO L85 PathProgramCache]: Analyzing trace with hash -990549235, now seen corresponding path program 1 times [2023-11-26 10:46:54,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:54,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845299372] [2023-11-26 10:46:54,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:54,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:55,498 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 10:46:55,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:55,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845299372] [2023-11-26 10:46:55,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845299372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:55,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:55,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 10:46:55,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045324939] [2023-11-26 10:46:55,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:55,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 10:46:55,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:55,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 10:46:55,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:46:56,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 104 [2023-11-26 10:46:56,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 594 transitions, 8292 flow. Second operand has 13 states, 13 states have (on average 62.76923076923077) internal successors, (816), 13 states have internal predecessors, (816), 0 states have call successors, (0), 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 10:46:56,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:56,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 104 [2023-11-26 10:46:56,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:59,929 INFO L124 PetriNetUnfolderBase]: 2819/7149 cut-off events. [2023-11-26 10:46:59,929 INFO L125 PetriNetUnfolderBase]: For 57839/58331 co-relation queries the response was YES. [2023-11-26 10:47:00,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34659 conditions, 7149 events. 2819/7149 cut-off events. For 57839/58331 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 62607 event pairs, 420 based on Foata normal form. 98/7181 useless extension candidates. Maximal degree in co-relation 34555. Up to 2413 conditions per place. [2023-11-26 10:47:00,083 INFO L140 encePairwiseOnDemand]: 75/104 looper letters, 673 selfloop transitions, 212 changer transitions 0/976 dead transitions. [2023-11-26 10:47:00,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 976 transitions, 13594 flow [2023-11-26 10:47:00,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 10:47:00,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-26 10:47:00,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1091 transitions. [2023-11-26 10:47:00,089 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7493131868131868 [2023-11-26 10:47:00,089 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1091 transitions. [2023-11-26 10:47:00,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1091 transitions. [2023-11-26 10:47:00,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:00,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1091 transitions. [2023-11-26 10:47:00,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 77.92857142857143) internal successors, (1091), 14 states have internal predecessors, (1091), 0 states have call successors, (0), 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 10:47:00,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 104.0) internal successors, (1560), 15 states have internal predecessors, (1560), 0 states have call successors, (0), 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 10:47:00,102 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 104.0) internal successors, (1560), 15 states have internal predecessors, (1560), 0 states have call successors, (0), 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 10:47:00,102 INFO L175 Difference]: Start difference. First operand has 227 places, 594 transitions, 8292 flow. Second operand 14 states and 1091 transitions. [2023-11-26 10:47:00,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 976 transitions, 13594 flow [2023-11-26 10:47:00,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 976 transitions, 13344 flow, removed 93 selfloop flow, removed 4 redundant places. [2023-11-26 10:47:00,584 INFO L231 Difference]: Finished difference. Result has 246 places, 709 transitions, 10448 flow [2023-11-26 10:47:00,585 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=8101, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=594, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10448, PETRI_PLACES=246, PETRI_TRANSITIONS=709} [2023-11-26 10:47:00,585 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 147 predicate places. [2023-11-26 10:47:00,585 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 709 transitions, 10448 flow [2023-11-26 10:47:00,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.76923076923077) internal successors, (816), 13 states have internal predecessors, (816), 0 states have call successors, (0), 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 10:47:00,586 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:00,587 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] [2023-11-26 10:47:00,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:47:00,587 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 10:47:00,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:00,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1149814267, now seen corresponding path program 5 times [2023-11-26 10:47:00,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:00,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745803855] [2023-11-26 10:47:00,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:00,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:01,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:01,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:01,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745803855] [2023-11-26 10:47:01,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745803855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:01,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:01,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 10:47:01,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873355551] [2023-11-26 10:47:01,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:01,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 10:47:01,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:01,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 10:47:01,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:47:02,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 104 [2023-11-26 10:47:02,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 709 transitions, 10448 flow. Second operand has 13 states, 13 states have (on average 72.3076923076923) internal successors, (940), 13 states have internal predecessors, (940), 0 states have call successors, (0), 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 10:47:02,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:02,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 104 [2023-11-26 10:47:02,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:05,785 INFO L124 PetriNetUnfolderBase]: 2565/7005 cut-off events. [2023-11-26 10:47:05,785 INFO L125 PetriNetUnfolderBase]: For 67528/68311 co-relation queries the response was YES. [2023-11-26 10:47:05,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35909 conditions, 7005 events. 2565/7005 cut-off events. For 67528/68311 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 64665 event pairs, 233 based on Foata normal form. 222/7166 useless extension candidates. Maximal degree in co-relation 35795. Up to 1879 conditions per place. [2023-11-26 10:47:05,922 INFO L140 encePairwiseOnDemand]: 83/104 looper letters, 660 selfloop transitions, 249 changer transitions 0/1030 dead transitions. [2023-11-26 10:47:05,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 1030 transitions, 15902 flow [2023-11-26 10:47:05,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 10:47:05,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-26 10:47:05,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1229 transitions. [2023-11-26 10:47:05,929 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7878205128205128 [2023-11-26 10:47:05,929 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1229 transitions. [2023-11-26 10:47:05,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1229 transitions. [2023-11-26 10:47:05,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:05,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1229 transitions. [2023-11-26 10:47:05,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.93333333333334) internal successors, (1229), 15 states have internal predecessors, (1229), 0 states have call successors, (0), 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 10:47:05,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 104.0) internal successors, (1664), 16 states have internal predecessors, (1664), 0 states have call successors, (0), 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 10:47:05,942 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 104.0) internal successors, (1664), 16 states have internal predecessors, (1664), 0 states have call successors, (0), 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 10:47:05,942 INFO L175 Difference]: Start difference. First operand has 246 places, 709 transitions, 10448 flow. Second operand 15 states and 1229 transitions. [2023-11-26 10:47:05,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 1030 transitions, 15902 flow [2023-11-26 10:47:06,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 1030 transitions, 15771 flow, removed 52 selfloop flow, removed 3 redundant places. [2023-11-26 10:47:06,895 INFO L231 Difference]: Finished difference. Result has 268 places, 785 transitions, 12786 flow [2023-11-26 10:47:06,896 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=10344, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=709, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=175, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12786, PETRI_PLACES=268, PETRI_TRANSITIONS=785} [2023-11-26 10:47:06,897 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 169 predicate places. [2023-11-26 10:47:06,897 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 785 transitions, 12786 flow [2023-11-26 10:47:06,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 72.3076923076923) internal successors, (940), 13 states have internal predecessors, (940), 0 states have call successors, (0), 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 10:47:06,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:06,898 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] [2023-11-26 10:47:06,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 10:47:06,898 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 10:47:06,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:06,899 INFO L85 PathProgramCache]: Analyzing trace with hash 561013423, now seen corresponding path program 6 times [2023-11-26 10:47:06,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:06,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096697339] [2023-11-26 10:47:06,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:06,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:07,382 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 10:47:07,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:07,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096697339] [2023-11-26 10:47:07,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096697339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:07,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:07,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 10:47:07,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737119869] [2023-11-26 10:47:07,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:07,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 10:47:07,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:07,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 10:47:07,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:47:08,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 104 [2023-11-26 10:47:08,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 785 transitions, 12786 flow. Second operand has 13 states, 13 states have (on average 72.3076923076923) internal successors, (940), 13 states have internal predecessors, (940), 0 states have call successors, (0), 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 10:47:08,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:08,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 104 [2023-11-26 10:47:08,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:11,985 INFO L124 PetriNetUnfolderBase]: 2618/7088 cut-off events. [2023-11-26 10:47:11,985 INFO L125 PetriNetUnfolderBase]: For 86837/87790 co-relation queries the response was YES. [2023-11-26 10:47:12,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38545 conditions, 7088 events. 2618/7088 cut-off events. For 86837/87790 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 65465 event pairs, 263 based on Foata normal form. 262/7292 useless extension candidates. Maximal degree in co-relation 38420. Up to 2064 conditions per place. [2023-11-26 10:47:12,077 INFO L140 encePairwiseOnDemand]: 83/104 looper letters, 685 selfloop transitions, 266 changer transitions 0/1072 dead transitions. [2023-11-26 10:47:12,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 1072 transitions, 17878 flow [2023-11-26 10:47:12,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 10:47:12,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-26 10:47:12,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1234 transitions. [2023-11-26 10:47:12,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.791025641025641 [2023-11-26 10:47:12,087 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1234 transitions. [2023-11-26 10:47:12,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1234 transitions. [2023-11-26 10:47:12,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:12,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1234 transitions. [2023-11-26 10:47:12,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 82.26666666666667) internal successors, (1234), 15 states have internal predecessors, (1234), 0 states have call successors, (0), 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 10:47:12,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 104.0) internal successors, (1664), 16 states have internal predecessors, (1664), 0 states have call successors, (0), 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 10:47:12,101 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 104.0) internal successors, (1664), 16 states have internal predecessors, (1664), 0 states have call successors, (0), 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 10:47:12,101 INFO L175 Difference]: Start difference. First operand has 268 places, 785 transitions, 12786 flow. Second operand 15 states and 1234 transitions. [2023-11-26 10:47:12,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 1072 transitions, 17878 flow