./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e8504c-abec-45bd-af35-2cec1f45c306/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e8504c-abec-45bd-af35-2cec1f45c306/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e8504c-abec-45bd-af35-2cec1f45c306/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e8504c-abec-45bd-af35-2cec1f45c306/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e8504c-abec-45bd-af35-2cec1f45c306/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e8504c-abec-45bd-af35-2cec1f45c306/bin/uautomizer-verify-BQ2R08f2Ya --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 0cfb19cf4d2e91498cc6b9015bdada7a33dfe09887340d8a9d79513b784b8b5a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:20:05,722 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:20:05,784 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e8504c-abec-45bd-af35-2cec1f45c306/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 02:20:05,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:20:05,788 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:20:05,811 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:20:05,811 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:20:05,812 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:20:05,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:20:05,813 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:20:05,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:20:05,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:20:05,815 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:20:05,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:20:05,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:20:05,816 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:20:05,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:20:05,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:20:05,818 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:20:05,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:20:05,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:20:05,820 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:20:05,820 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 02:20:05,821 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:20:05,821 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:20:05,821 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:20:05,822 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:20:05,822 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:20:05,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:20:05,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:20:05,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:20:05,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:20:05,825 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:20:05,825 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:20:05,825 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:20:05,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:20:05,826 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:20:05,827 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:20:05,827 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:20:05,827 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:20:05,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:20:05,828 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_86e8504c-abec-45bd-af35-2cec1f45c306/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e8504c-abec-45bd-af35-2cec1f45c306/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cfb19cf4d2e91498cc6b9015bdada7a33dfe09887340d8a9d79513b784b8b5a [2023-11-29 02:20:06,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:20:06,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:20:06,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:20:06,075 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:20:06,075 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:20:06,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e8504c-abec-45bd-af35-2cec1f45c306/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2023-11-29 02:20:08,828 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:20:09,008 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:20:09,008 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e8504c-abec-45bd-af35-2cec1f45c306/sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2023-11-29 02:20:09,017 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e8504c-abec-45bd-af35-2cec1f45c306/bin/uautomizer-verify-BQ2R08f2Ya/data/6afcb4fec/4bd6e5c5427044abbbc2349a73384979/FLAGf82b8fd19 [2023-11-29 02:20:09,029 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e8504c-abec-45bd-af35-2cec1f45c306/bin/uautomizer-verify-BQ2R08f2Ya/data/6afcb4fec/4bd6e5c5427044abbbc2349a73384979 [2023-11-29 02:20:09,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:20:09,032 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:20:09,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:20:09,034 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:20:09,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:20:09,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:20:09" (1/1) ... [2023-11-29 02:20:09,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4aae7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:09, skipping insertion in model container [2023-11-29 02:20:09,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:20:09" (1/1) ... [2023-11-29 02:20:09,069 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:20:09,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:20:09,281 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:20:09,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:20:09,336 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 02:20:09,336 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 02:20:09,343 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:20:09,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:09 WrapperNode [2023-11-29 02:20:09,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:20:09,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:20:09,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:20:09,344 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:20:09,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:09" (1/1) ... [2023-11-29 02:20:09,366 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:09" (1/1) ... [2023-11-29 02:20:09,407 INFO L138 Inliner]: procedures = 25, calls = 101, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 591 [2023-11-29 02:20:09,408 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:20:09,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:20:09,409 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:20:09,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:20:09,419 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:09" (1/1) ... [2023-11-29 02:20:09,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:09" (1/1) ... [2023-11-29 02:20:09,426 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:09" (1/1) ... [2023-11-29 02:20:09,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:09" (1/1) ... [2023-11-29 02:20:09,445 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:09" (1/1) ... [2023-11-29 02:20:09,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:09" (1/1) ... [2023-11-29 02:20:09,452 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:09" (1/1) ... [2023-11-29 02:20:09,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:09" (1/1) ... [2023-11-29 02:20:09,461 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:20:09,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:20:09,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:20:09,462 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:20:09,463 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:09" (1/1) ... [2023-11-29 02:20:09,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:20:09,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e8504c-abec-45bd-af35-2cec1f45c306/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:20:09,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e8504c-abec-45bd-af35-2cec1f45c306/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:20:09,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e8504c-abec-45bd-af35-2cec1f45c306/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:20:09,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:20:09,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 02:20:09,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 02:20:09,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 02:20:09,529 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 02:20:09,529 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 02:20:09,529 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 02:20:09,529 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 02:20:09,529 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-29 02:20:09,529 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-29 02:20:09,529 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-29 02:20:09,529 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-29 02:20:09,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 02:20:09,530 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-29 02:20:09,530 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-29 02:20:09,530 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-29 02:20:09,530 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-29 02:20:09,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 02:20:09,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 02:20:09,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:20:09,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:20:09,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 02:20:09,533 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 02:20:09,656 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:20:09,658 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:20:10,294 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:20:10,602 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:20:10,602 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 02:20:10,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:20:10 BoogieIcfgContainer [2023-11-29 02:20:10,605 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:20:10,607 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:20:10,607 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:20:10,610 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:20:10,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:20:09" (1/3) ... [2023-11-29 02:20:10,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791c67a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:20:10, skipping insertion in model container [2023-11-29 02:20:10,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:20:09" (2/3) ... [2023-11-29 02:20:10,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791c67a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:20:10, skipping insertion in model container [2023-11-29 02:20:10,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:20:10" (3/3) ... [2023-11-29 02:20:10,613 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-6.wvr.c [2023-11-29 02:20:10,621 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 02:20:10,629 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:20:10,629 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 88 error locations. [2023-11-29 02:20:10,629 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 02:20:10,732 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2023-11-29 02:20:10,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 403 places, 389 transitions, 820 flow [2023-11-29 02:20:10,907 INFO L124 PetriNetUnfolderBase]: 5/383 cut-off events. [2023-11-29 02:20:10,908 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 02:20:10,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 408 conditions, 383 events. 5/383 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 429 event pairs, 0 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 287. Up to 2 conditions per place. [2023-11-29 02:20:10,913 INFO L82 GeneralOperation]: Start removeDead. Operand has 403 places, 389 transitions, 820 flow [2023-11-29 02:20:10,925 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 369 places, 354 transitions, 744 flow [2023-11-29 02:20:10,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:20:10,942 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;@32911169, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:20:10,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 159 error locations. [2023-11-29 02:20:10,948 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 02:20:10,948 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2023-11-29 02:20:10,948 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 02:20:10,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:20:10,949 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] [2023-11-29 02:20:10,950 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 155 more)] === [2023-11-29 02:20:10,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:20:10,955 INFO L85 PathProgramCache]: Analyzing trace with hash -517176117, now seen corresponding path program 1 times [2023-11-29 02:20:10,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:20:10,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828384413] [2023-11-29 02:20:10,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:10,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:20:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:20:11,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:20:11,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:20:11,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828384413] [2023-11-29 02:20:11,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828384413] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:20:11,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:20:11,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:20:11,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450268448] [2023-11-29 02:20:11,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:20:11,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:20:11,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:20:11,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:20:11,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:20:11,252 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 389 [2023-11-29 02:20:11,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 354 transitions, 744 flow. Second operand has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:20:11,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:20:11,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 389 [2023-11-29 02:20:11,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:20:34,756 INFO L124 PetriNetUnfolderBase]: 104692/148697 cut-off events. [2023-11-29 02:20:34,756 INFO L125 PetriNetUnfolderBase]: For 16782/17748 co-relation queries the response was YES. [2023-11-29 02:20:35,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294021 conditions, 148697 events. 104692/148697 cut-off events. For 16782/17748 co-relation queries the response was YES. Maximal size of possible extension queue 5410. Compared 1180757 event pairs, 104689 based on Foata normal form. 1/148526 useless extension candidates. Maximal degree in co-relation 292272. Up to 132035 conditions per place. [2023-11-29 02:20:36,209 INFO L140 encePairwiseOnDemand]: 320/389 looper letters, 40 selfloop transitions, 2 changer transitions 1/287 dead transitions. [2023-11-29 02:20:36,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 287 transitions, 694 flow [2023-11-29 02:20:36,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:20:36,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 02:20:36,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 940 transitions. [2023-11-29 02:20:36,229 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.805484147386461 [2023-11-29 02:20:36,230 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 940 transitions. [2023-11-29 02:20:36,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 940 transitions. [2023-11-29 02:20:36,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:20:36,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 940 transitions. [2023-11-29 02:20:36,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 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) [2023-11-29 02:20:36,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:20:36,252 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:20:36,253 INFO L175 Difference]: Start difference. First operand has 369 places, 354 transitions, 744 flow. Second operand 3 states and 940 transitions. [2023-11-29 02:20:36,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 287 transitions, 694 flow [2023-11-29 02:20:36,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 287 transitions, 670 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-29 02:20:36,330 INFO L231 Difference]: Finished difference. Result has 293 places, 286 transitions, 588 flow [2023-11-29 02:20:36,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=389, PETRI_DIFFERENCE_MINUEND_FLOW=586, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=588, PETRI_PLACES=293, PETRI_TRANSITIONS=286} [2023-11-29 02:20:36,336 INFO L281 CegarLoopForPetriNet]: 369 programPoint places, -76 predicate places. [2023-11-29 02:20:36,336 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 286 transitions, 588 flow [2023-11-29 02:20:36,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:20:36,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:20:36,337 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:20:36,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:20:36,338 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 155 more)] === [2023-11-29 02:20:36,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:20:36,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1555267370, now seen corresponding path program 1 times [2023-11-29 02:20:36,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:20:36,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503393510] [2023-11-29 02:20:36,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:36,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:20:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:20:36,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:20:36,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:20:36,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503393510] [2023-11-29 02:20:36,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503393510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:20:36,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:20:36,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:20:36,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128516801] [2023-11-29 02:20:36,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:20:36,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:20:36,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:20:36,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:20:36,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:20:36,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 389 [2023-11-29 02:20:36,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 286 transitions, 588 flow. Second operand has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:20:36,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:20:36,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 389 [2023-11-29 02:20:36,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:20:56,485 INFO L124 PetriNetUnfolderBase]: 104692/148695 cut-off events. [2023-11-29 02:20:56,486 INFO L125 PetriNetUnfolderBase]: For 3906/4872 co-relation queries the response was YES. [2023-11-29 02:20:57,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285423 conditions, 148695 events. 104692/148695 cut-off events. For 3906/4872 co-relation queries the response was YES. Maximal size of possible extension queue 5410. Compared 1181558 event pairs, 104689 based on Foata normal form. 0/148525 useless extension candidates. Maximal degree in co-relation 285385. Up to 132035 conditions per place. [2023-11-29 02:20:57,896 INFO L140 encePairwiseOnDemand]: 386/389 looper letters, 40 selfloop transitions, 2 changer transitions 0/285 dead transitions. [2023-11-29 02:20:57,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 285 transitions, 670 flow [2023-11-29 02:20:57,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:20:57,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 02:20:57,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 874 transitions. [2023-11-29 02:20:57,900 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7489288774635818 [2023-11-29 02:20:57,901 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 874 transitions. [2023-11-29 02:20:57,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 874 transitions. [2023-11-29 02:20:57,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:20:57,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 874 transitions. [2023-11-29 02:20:57,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:20:57,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:20:57,910 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:20:57,910 INFO L175 Difference]: Start difference. First operand has 293 places, 286 transitions, 588 flow. Second operand 3 states and 874 transitions. [2023-11-29 02:20:57,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 285 transitions, 670 flow [2023-11-29 02:20:57,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 285 transitions, 666 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 02:20:57,918 INFO L231 Difference]: Finished difference. Result has 291 places, 285 transitions, 586 flow [2023-11-29 02:20:57,919 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=389, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=586, PETRI_PLACES=291, PETRI_TRANSITIONS=285} [2023-11-29 02:20:57,920 INFO L281 CegarLoopForPetriNet]: 369 programPoint places, -78 predicate places. [2023-11-29 02:20:57,920 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 285 transitions, 586 flow [2023-11-29 02:20:57,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:20:57,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:20:57,921 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] [2023-11-29 02:20:57,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 02:20:57,922 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 155 more)] === [2023-11-29 02:20:57,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:20:57,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1776869600, now seen corresponding path program 1 times [2023-11-29 02:20:57,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:20:57,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925004263] [2023-11-29 02:20:57,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:20:57,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:20:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:20:57,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:20:57,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:20:57,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925004263] [2023-11-29 02:20:57,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925004263] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:20:57,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:20:57,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:20:57,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259488720] [2023-11-29 02:20:57,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:20:57,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:20:57,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:20:57,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:20:57,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:20:57,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 389 [2023-11-29 02:20:58,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 285 transitions, 586 flow. Second operand has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:20:58,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:20:58,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 389 [2023-11-29 02:20:58,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:21:17,989 INFO L124 PetriNetUnfolderBase]: 104692/148694 cut-off events. [2023-11-29 02:21:17,989 INFO L125 PetriNetUnfolderBase]: For 3906/4872 co-relation queries the response was YES. [2023-11-29 02:21:18,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285422 conditions, 148694 events. 104692/148694 cut-off events. For 3906/4872 co-relation queries the response was YES. Maximal size of possible extension queue 5410. Compared 1181821 event pairs, 104689 based on Foata normal form. 0/148525 useless extension candidates. Maximal degree in co-relation 285376. Up to 132035 conditions per place. [2023-11-29 02:21:19,182 INFO L140 encePairwiseOnDemand]: 386/389 looper letters, 40 selfloop transitions, 2 changer transitions 0/284 dead transitions. [2023-11-29 02:21:19,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 284 transitions, 668 flow [2023-11-29 02:21:19,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:21:19,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 02:21:19,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 874 transitions. [2023-11-29 02:21:19,186 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7489288774635818 [2023-11-29 02:21:19,186 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 874 transitions. [2023-11-29 02:21:19,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 874 transitions. [2023-11-29 02:21:19,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:21:19,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 874 transitions. [2023-11-29 02:21:19,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:21:19,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:21:19,194 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:21:19,194 INFO L175 Difference]: Start difference. First operand has 291 places, 285 transitions, 586 flow. Second operand 3 states and 874 transitions. [2023-11-29 02:21:19,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 284 transitions, 668 flow [2023-11-29 02:21:19,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 284 transitions, 664 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 02:21:19,199 INFO L231 Difference]: Finished difference. Result has 290 places, 284 transitions, 584 flow [2023-11-29 02:21:19,200 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=389, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=584, PETRI_PLACES=290, PETRI_TRANSITIONS=284} [2023-11-29 02:21:19,201 INFO L281 CegarLoopForPetriNet]: 369 programPoint places, -79 predicate places. [2023-11-29 02:21:19,201 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 284 transitions, 584 flow [2023-11-29 02:21:19,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:21:19,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:21:19,202 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] [2023-11-29 02:21:19,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 02:21:19,202 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 155 more)] === [2023-11-29 02:21:19,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:21:19,203 INFO L85 PathProgramCache]: Analyzing trace with hash 815340776, now seen corresponding path program 1 times [2023-11-29 02:21:19,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:21:19,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486761081] [2023-11-29 02:21:19,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:21:19,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:21:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:21:19,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:21:19,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:21:19,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486761081] [2023-11-29 02:21:19,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486761081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:21:19,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:21:19,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:21:19,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110226897] [2023-11-29 02:21:19,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:21:19,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:21:19,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:21:19,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:21:19,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:21:19,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 389 [2023-11-29 02:21:19,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 284 transitions, 584 flow. Second operand has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:21:19,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:21:19,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 389 [2023-11-29 02:21:19,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:21:37,777 INFO L124 PetriNetUnfolderBase]: 104692/148693 cut-off events. [2023-11-29 02:21:37,778 INFO L125 PetriNetUnfolderBase]: For 3906/4872 co-relation queries the response was YES. [2023-11-29 02:21:38,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285421 conditions, 148693 events. 104692/148693 cut-off events. For 3906/4872 co-relation queries the response was YES. Maximal size of possible extension queue 5410. Compared 1181730 event pairs, 104689 based on Foata normal form. 0/148525 useless extension candidates. Maximal degree in co-relation 285367. Up to 132035 conditions per place. [2023-11-29 02:21:38,971 INFO L140 encePairwiseOnDemand]: 386/389 looper letters, 40 selfloop transitions, 2 changer transitions 0/283 dead transitions. [2023-11-29 02:21:38,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 283 transitions, 666 flow [2023-11-29 02:21:38,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:21:38,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 02:21:38,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 874 transitions. [2023-11-29 02:21:38,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7489288774635818 [2023-11-29 02:21:38,975 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 874 transitions. [2023-11-29 02:21:38,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 874 transitions. [2023-11-29 02:21:38,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:21:38,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 874 transitions. [2023-11-29 02:21:38,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:21:38,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:21:38,982 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:21:38,982 INFO L175 Difference]: Start difference. First operand has 290 places, 284 transitions, 584 flow. Second operand 3 states and 874 transitions. [2023-11-29 02:21:38,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 283 transitions, 666 flow [2023-11-29 02:21:38,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 283 transitions, 662 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 02:21:38,987 INFO L231 Difference]: Finished difference. Result has 289 places, 283 transitions, 582 flow [2023-11-29 02:21:38,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=389, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=289, PETRI_TRANSITIONS=283} [2023-11-29 02:21:38,989 INFO L281 CegarLoopForPetriNet]: 369 programPoint places, -80 predicate places. [2023-11-29 02:21:38,989 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 283 transitions, 582 flow [2023-11-29 02:21:38,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:21:38,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:21:38,990 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:21:38,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 02:21:38,991 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 155 more)] === [2023-11-29 02:21:38,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:21:38,991 INFO L85 PathProgramCache]: Analyzing trace with hash -691864393, now seen corresponding path program 1 times [2023-11-29 02:21:38,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:21:38,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142269407] [2023-11-29 02:21:38,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:21:38,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:21:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:21:39,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:21:39,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:21:39,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142269407] [2023-11-29 02:21:39,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142269407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:21:39,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:21:39,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:21:39,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755035900] [2023-11-29 02:21:39,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:21:39,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:21:39,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:21:39,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:21:39,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:21:39,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 389 [2023-11-29 02:21:39,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 283 transitions, 582 flow. Second operand has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:21:39,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:21:39,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 389 [2023-11-29 02:21:39,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:21:58,563 INFO L124 PetriNetUnfolderBase]: 104692/148692 cut-off events. [2023-11-29 02:21:58,563 INFO L125 PetriNetUnfolderBase]: For 3906/4872 co-relation queries the response was YES. [2023-11-29 02:21:59,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285420 conditions, 148692 events. 104692/148692 cut-off events. For 3906/4872 co-relation queries the response was YES. Maximal size of possible extension queue 5410. Compared 1182015 event pairs, 104689 based on Foata normal form. 0/148525 useless extension candidates. Maximal degree in co-relation 285358. Up to 132035 conditions per place. [2023-11-29 02:21:59,972 INFO L140 encePairwiseOnDemand]: 386/389 looper letters, 40 selfloop transitions, 2 changer transitions 0/282 dead transitions. [2023-11-29 02:21:59,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 282 transitions, 664 flow [2023-11-29 02:21:59,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:21:59,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 02:21:59,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 874 transitions. [2023-11-29 02:21:59,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7489288774635818 [2023-11-29 02:21:59,975 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 874 transitions. [2023-11-29 02:21:59,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 874 transitions. [2023-11-29 02:21:59,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:21:59,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 874 transitions. [2023-11-29 02:21:59,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:21:59,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:21:59,983 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:21:59,983 INFO L175 Difference]: Start difference. First operand has 289 places, 283 transitions, 582 flow. Second operand 3 states and 874 transitions. [2023-11-29 02:21:59,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 282 transitions, 664 flow [2023-11-29 02:21:59,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 282 transitions, 660 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 02:21:59,988 INFO L231 Difference]: Finished difference. Result has 288 places, 282 transitions, 580 flow [2023-11-29 02:21:59,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=389, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=580, PETRI_PLACES=288, PETRI_TRANSITIONS=282} [2023-11-29 02:21:59,989 INFO L281 CegarLoopForPetriNet]: 369 programPoint places, -81 predicate places. [2023-11-29 02:21:59,989 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 282 transitions, 580 flow [2023-11-29 02:21:59,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:21:59,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:21:59,991 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:21:59,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 02:21:59,991 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 155 more)] === [2023-11-29 02:21:59,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:21:59,992 INFO L85 PathProgramCache]: Analyzing trace with hash 190401151, now seen corresponding path program 1 times [2023-11-29 02:21:59,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:21:59,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50905710] [2023-11-29 02:21:59,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:21:59,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:00,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:22:00,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:00,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50905710] [2023-11-29 02:22:00,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50905710] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:00,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:22:00,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:22:00,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307859839] [2023-11-29 02:22:00,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:00,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:22:00,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:00,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:22:00,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:22:00,050 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 389 [2023-11-29 02:22:00,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 282 transitions, 580 flow. Second operand has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:22:00,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:22:00,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 389 [2023-11-29 02:22:00,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 02:22:18,313 INFO L124 PetriNetUnfolderBase]: 104692/148691 cut-off events. [2023-11-29 02:22:18,314 INFO L125 PetriNetUnfolderBase]: For 3906/4872 co-relation queries the response was YES. [2023-11-29 02:22:18,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285419 conditions, 148691 events. 104692/148691 cut-off events. For 3906/4872 co-relation queries the response was YES. Maximal size of possible extension queue 5410. Compared 1181096 event pairs, 104689 based on Foata normal form. 0/148525 useless extension candidates. Maximal degree in co-relation 285349. Up to 132035 conditions per place. [2023-11-29 02:22:19,501 INFO L140 encePairwiseOnDemand]: 386/389 looper letters, 40 selfloop transitions, 2 changer transitions 0/281 dead transitions. [2023-11-29 02:22:19,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 281 transitions, 662 flow [2023-11-29 02:22:19,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:22:19,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 02:22:19,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 874 transitions. [2023-11-29 02:22:19,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7489288774635818 [2023-11-29 02:22:19,506 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 874 transitions. [2023-11-29 02:22:19,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 874 transitions. [2023-11-29 02:22:19,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 02:22:19,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 874 transitions. [2023-11-29 02:22:19,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 291.3333333333333) internal successors, (874), 3 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:22:19,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:22:19,513 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 389.0) internal successors, (1556), 4 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:22:19,513 INFO L175 Difference]: Start difference. First operand has 288 places, 282 transitions, 580 flow. Second operand 3 states and 874 transitions. [2023-11-29 02:22:19,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 281 transitions, 662 flow [2023-11-29 02:22:19,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 281 transitions, 658 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 02:22:19,519 INFO L231 Difference]: Finished difference. Result has 287 places, 281 transitions, 578 flow [2023-11-29 02:22:19,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=389, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=578, PETRI_PLACES=287, PETRI_TRANSITIONS=281} [2023-11-29 02:22:19,520 INFO L281 CegarLoopForPetriNet]: 369 programPoint places, -82 predicate places. [2023-11-29 02:22:19,520 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 281 transitions, 578 flow [2023-11-29 02:22:19,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:22:19,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 02:22:19,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:22:19,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 02:22:19,521 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 155 more)] === [2023-11-29 02:22:19,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:22:19,522 INFO L85 PathProgramCache]: Analyzing trace with hash 2105563247, now seen corresponding path program 1 times [2023-11-29 02:22:19,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:22:19,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943074079] [2023-11-29 02:22:19,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:22:19,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:22:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:22:19,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:22:19,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:22:19,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943074079] [2023-11-29 02:22:19,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943074079] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:22:19,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:22:19,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:22:19,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956690265] [2023-11-29 02:22:19,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:22:19,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:22:19,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:22:19,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:22:19,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:22:19,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 389 [2023-11-29 02:22:19,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 281 transitions, 578 flow. Second operand has 3 states, 3 states have (on average 275.3333333333333) internal successors, (826), 3 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:22:19,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 02:22:19,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 389 [2023-11-29 02:22:19,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand