./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a659e0c-3f10-4854-93d9-0dac922f8929/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a659e0c-3f10-4854-93d9-0dac922f8929/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a659e0c-3f10-4854-93d9-0dac922f8929/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a659e0c-3f10-4854-93d9-0dac922f8929/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a659e0c-3f10-4854-93d9-0dac922f8929/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a659e0c-3f10-4854-93d9-0dac922f8929/bin/uautomizer-verify-bycVGegfSx --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 0d0975dc4466296431d96c26938a2e71864de63aba998f18ecd8a32ca341796b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:03:40,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:03:40,869 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a659e0c-3f10-4854-93d9-0dac922f8929/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 21:03:40,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:03:40,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:03:40,899 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:03:40,900 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:03:40,901 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:03:40,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:03:40,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:03:40,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:03:40,903 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:03:40,904 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:03:40,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:03:40,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:03:40,906 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:03:40,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:03:40,907 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:03:40,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:03:40,908 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:03:40,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:03:40,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:03:40,910 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 21:03:40,910 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:03:40,911 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:03:40,911 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:03:40,911 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:03:40,912 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:03:40,912 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:03:40,913 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:03:40,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:03:40,914 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:03:40,914 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:03:40,915 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:03:40,915 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:03:40,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:03:40,916 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:03:40,916 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:03:40,917 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:03:40,917 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:03:40,917 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:03:40,918 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_5a659e0c-3f10-4854-93d9-0dac922f8929/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a659e0c-3f10-4854-93d9-0dac922f8929/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d0975dc4466296431d96c26938a2e71864de63aba998f18ecd8a32ca341796b [2023-11-21 21:03:41,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:03:41,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:03:41,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:03:41,264 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:03:41,265 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:03:41,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a659e0c-3f10-4854-93d9-0dac922f8929/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2023-11-21 21:03:44,300 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:03:44,547 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:03:44,552 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a659e0c-3f10-4854-93d9-0dac922f8929/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2023-11-21 21:03:44,567 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a659e0c-3f10-4854-93d9-0dac922f8929/bin/uautomizer-verify-bycVGegfSx/data/f3fc7aea0/cae95f6cc04d442c85b96b0e48182d2c/FLAG546ef2844 [2023-11-21 21:03:44,586 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a659e0c-3f10-4854-93d9-0dac922f8929/bin/uautomizer-verify-bycVGegfSx/data/f3fc7aea0/cae95f6cc04d442c85b96b0e48182d2c [2023-11-21 21:03:44,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:03:44,591 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:03:44,593 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:03:44,593 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:03:44,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:03:44,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:03:44" (1/1) ... [2023-11-21 21:03:44,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79cc7a3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:44, skipping insertion in model container [2023-11-21 21:03:44,600 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:03:44" (1/1) ... [2023-11-21 21:03:44,633 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:03:44,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:03:44,926 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:03:45,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:03:45,026 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:03:45,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:45 WrapperNode [2023-11-21 21:03:45,026 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:03:45,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:03:45,028 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:03:45,028 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:03:45,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:45" (1/1) ... [2023-11-21 21:03:45,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:45" (1/1) ... [2023-11-21 21:03:45,182 INFO L138 Inliner]: procedures = 26, calls = 77, calls flagged for inlining = 29, calls inlined = 43, statements flattened = 1339 [2023-11-21 21:03:45,182 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:03:45,183 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:03:45,183 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:03:45,183 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:03:45,201 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:45" (1/1) ... [2023-11-21 21:03:45,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:45" (1/1) ... [2023-11-21 21:03:45,212 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:45" (1/1) ... [2023-11-21 21:03:45,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:45" (1/1) ... [2023-11-21 21:03:45,293 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:45" (1/1) ... [2023-11-21 21:03:45,303 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:45" (1/1) ... [2023-11-21 21:03:45,307 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:45" (1/1) ... [2023-11-21 21:03:45,313 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:45" (1/1) ... [2023-11-21 21:03:45,325 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:03:45,326 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:03:45,326 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:03:45,326 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:03:45,373 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:45" (1/1) ... [2023-11-21 21:03:45,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:03:45,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a659e0c-3f10-4854-93d9-0dac922f8929/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:03:45,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a659e0c-3f10-4854-93d9-0dac922f8929/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:03:45,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a659e0c-3f10-4854-93d9-0dac922f8929/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:03:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:03:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:03:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 21:03:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 21:03:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 21:03:45,523 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 21:03:45,524 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 21:03:45,524 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 21:03:45,524 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-21 21:03:45,525 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-21 21:03:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 21:03:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 21:03:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:03:45,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:03:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:03:45,529 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 21:03:45,712 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:03:45,714 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:03:47,456 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:03:47,497 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:03:47,501 INFO L308 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-21 21:03:47,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:47 BoogieIcfgContainer [2023-11-21 21:03:47,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:03:47,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:03:47,507 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:03:47,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:03:47,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:03:44" (1/3) ... [2023-11-21 21:03:47,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763cef0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:03:47, skipping insertion in model container [2023-11-21 21:03:47,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:45" (2/3) ... [2023-11-21 21:03:47,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763cef0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:03:47, skipping insertion in model container [2023-11-21 21:03:47,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:47" (3/3) ... [2023-11-21 21:03:47,514 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.c [2023-11-21 21:03:47,520 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 21:03:47,528 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:03:47,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 228 error locations. [2023-11-21 21:03:47,529 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 21:03:47,874 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-21 21:03:47,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1688 places, 1789 transitions, 3599 flow [2023-11-21 21:03:50,109 INFO L124 PetriNetUnfolderBase]: 111/1786 cut-off events. [2023-11-21 21:03:50,109 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 21:03:50,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1799 conditions, 1786 events. 111/1786 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 7773 event pairs, 0 based on Foata normal form. 0/1447 useless extension candidates. Maximal degree in co-relation 1391. Up to 2 conditions per place. [2023-11-21 21:03:50,252 INFO L82 GeneralOperation]: Start removeDead. Operand has 1688 places, 1789 transitions, 3599 flow [2023-11-21 21:03:50,355 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1660 places, 1759 transitions, 3536 flow [2023-11-21 21:03:50,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:03:50,383 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;@64bbd1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:03:50,383 INFO L358 AbstractCegarLoop]: Starting to check reachability of 429 error locations. [2023-11-21 21:03:50,398 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 21:03:50,408 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2023-11-21 21:03:50,408 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 21:03:50,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:03:50,409 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] [2023-11-21 21:03:50,410 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-21 21:03:50,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:50,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1226712167, now seen corresponding path program 1 times [2023-11-21 21:03:50,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:50,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065749228] [2023-11-21 21:03:50,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:50,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:50,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:03:50,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:50,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065749228] [2023-11-21 21:03:50,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065749228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:03:50,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:03:50,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:03:50,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592562823] [2023-11-21 21:03:50,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:03:50,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:03:50,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:50,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:03:50,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:03:50,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1736 out of 1789 [2023-11-21 21:03:50,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1660 places, 1759 transitions, 3536 flow. Second operand has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:50,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:03:50,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1736 of 1789 [2023-11-21 21:03:50,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:03:53,341 INFO L124 PetriNetUnfolderBase]: 124/2651 cut-off events. [2023-11-21 21:03:53,342 INFO L125 PetriNetUnfolderBase]: For 20/22 co-relation queries the response was YES. [2023-11-21 21:03:53,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2694 conditions, 2651 events. 124/2651 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 14845 event pairs, 5 based on Foata normal form. 110/2232 useless extension candidates. Maximal degree in co-relation 2283. Up to 22 conditions per place. [2023-11-21 21:03:53,508 INFO L140 encePairwiseOnDemand]: 1750/1789 looper letters, 11 selfloop transitions, 2 changer transitions 6/1722 dead transitions. [2023-11-21 21:03:53,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1661 places, 1722 transitions, 3488 flow [2023-11-21 21:03:53,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:03:53,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:03:53,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5258 transitions. [2023-11-21 21:03:53,550 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9796907024408422 [2023-11-21 21:03:53,551 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5258 transitions. [2023-11-21 21:03:53,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5258 transitions. [2023-11-21 21:03:53,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:03:53,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5258 transitions. [2023-11-21 21:03:53,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1752.6666666666667) internal successors, (5258), 3 states have internal predecessors, (5258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:53,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:53,616 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:53,618 INFO L175 Difference]: Start difference. First operand has 1660 places, 1759 transitions, 3536 flow. Second operand 3 states and 5258 transitions. [2023-11-21 21:03:53,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1661 places, 1722 transitions, 3488 flow [2023-11-21 21:03:53,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1655 places, 1722 transitions, 3476 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-21 21:03:53,683 INFO L231 Difference]: Finished difference. Result has 1655 places, 1716 transitions, 3442 flow [2023-11-21 21:03:53,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3450, PETRI_DIFFERENCE_MINUEND_PLACES=1653, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1722, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1720, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3442, PETRI_PLACES=1655, PETRI_TRANSITIONS=1716} [2023-11-21 21:03:53,693 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -5 predicate places. [2023-11-21 21:03:53,694 INFO L495 AbstractCegarLoop]: Abstraction has has 1655 places, 1716 transitions, 3442 flow [2023-11-21 21:03:53,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:53,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:03:53,699 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] [2023-11-21 21:03:53,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:03:53,700 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-21 21:03:53,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:53,701 INFO L85 PathProgramCache]: Analyzing trace with hash -663947919, now seen corresponding path program 1 times [2023-11-21 21:03:53,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:53,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532193944] [2023-11-21 21:03:53,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:53,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:53,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:03:53,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:53,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532193944] [2023-11-21 21:03:53,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532193944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:03:53,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:03:53,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:03:53,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507611922] [2023-11-21 21:03:53,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:03:53,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:03:53,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:53,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:03:53,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:03:53,869 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1736 out of 1789 [2023-11-21 21:03:53,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1655 places, 1716 transitions, 3442 flow. Second operand has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:53,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:03:53,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1736 of 1789 [2023-11-21 21:03:53,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:03:56,208 INFO L124 PetriNetUnfolderBase]: 124/2644 cut-off events. [2023-11-21 21:03:56,209 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-11-21 21:03:56,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2677 conditions, 2644 events. 124/2644 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 15368 event pairs, 5 based on Foata normal form. 0/2123 useless extension candidates. Maximal degree in co-relation 2631. Up to 22 conditions per place. [2023-11-21 21:03:56,401 INFO L140 encePairwiseOnDemand]: 1786/1789 looper letters, 11 selfloop transitions, 2 changer transitions 0/1715 dead transitions. [2023-11-21 21:03:56,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1650 places, 1715 transitions, 3466 flow [2023-11-21 21:03:56,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:03:56,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:03:56,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5222 transitions. [2023-11-21 21:03:56,418 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9729830445313956 [2023-11-21 21:03:56,419 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5222 transitions. [2023-11-21 21:03:56,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5222 transitions. [2023-11-21 21:03:56,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:03:56,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5222 transitions. [2023-11-21 21:03:56,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1740.6666666666667) internal successors, (5222), 3 states have internal predecessors, (5222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:56,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:56,466 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:56,467 INFO L175 Difference]: Start difference. First operand has 1655 places, 1716 transitions, 3442 flow. Second operand 3 states and 5222 transitions. [2023-11-21 21:03:56,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1650 places, 1715 transitions, 3466 flow [2023-11-21 21:03:56,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1648 places, 1715 transitions, 3462 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:03:56,505 INFO L231 Difference]: Finished difference. Result has 1648 places, 1715 transitions, 3440 flow [2023-11-21 21:03:56,509 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3436, PETRI_DIFFERENCE_MINUEND_PLACES=1646, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1715, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1713, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3440, PETRI_PLACES=1648, PETRI_TRANSITIONS=1715} [2023-11-21 21:03:56,510 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -12 predicate places. [2023-11-21 21:03:56,510 INFO L495 AbstractCegarLoop]: Abstraction has has 1648 places, 1715 transitions, 3440 flow [2023-11-21 21:03:56,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:56,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:03:56,519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:56,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 21:03:56,520 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-21 21:03:56,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:56,521 INFO L85 PathProgramCache]: Analyzing trace with hash 879587352, now seen corresponding path program 1 times [2023-11-21 21:03:56,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:56,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738781477] [2023-11-21 21:03:56,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:56,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:56,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:03:56,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:56,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738781477] [2023-11-21 21:03:56,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738781477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:03:56,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:03:56,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:03:56,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804795477] [2023-11-21 21:03:56,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:03:56,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:03:56,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:56,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:03:56,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:03:56,664 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1736 out of 1789 [2023-11-21 21:03:56,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1648 places, 1715 transitions, 3440 flow. Second operand has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:56,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:03:56,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1736 of 1789 [2023-11-21 21:03:56,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:03:59,467 INFO L124 PetriNetUnfolderBase]: 172/3546 cut-off events. [2023-11-21 21:03:59,467 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2023-11-21 21:03:59,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3584 conditions, 3546 events. 172/3546 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 22116 event pairs, 7 based on Foata normal form. 0/2829 useless extension candidates. Maximal degree in co-relation 3530. Up to 25 conditions per place. [2023-11-21 21:03:59,733 INFO L140 encePairwiseOnDemand]: 1786/1789 looper letters, 11 selfloop transitions, 2 changer transitions 0/1714 dead transitions. [2023-11-21 21:03:59,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1649 places, 1714 transitions, 3464 flow [2023-11-21 21:03:59,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:03:59,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:03:59,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5222 transitions. [2023-11-21 21:03:59,750 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9729830445313956 [2023-11-21 21:03:59,751 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5222 transitions. [2023-11-21 21:03:59,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5222 transitions. [2023-11-21 21:03:59,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:03:59,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5222 transitions. [2023-11-21 21:03:59,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1740.6666666666667) internal successors, (5222), 3 states have internal predecessors, (5222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:59,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:59,807 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:59,808 INFO L175 Difference]: Start difference. First operand has 1648 places, 1715 transitions, 3440 flow. Second operand 3 states and 5222 transitions. [2023-11-21 21:03:59,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1649 places, 1714 transitions, 3464 flow [2023-11-21 21:03:59,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1647 places, 1714 transitions, 3460 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:03:59,846 INFO L231 Difference]: Finished difference. Result has 1647 places, 1714 transitions, 3438 flow [2023-11-21 21:03:59,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3434, PETRI_DIFFERENCE_MINUEND_PLACES=1645, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1714, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1712, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3438, PETRI_PLACES=1647, PETRI_TRANSITIONS=1714} [2023-11-21 21:03:59,851 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -13 predicate places. [2023-11-21 21:03:59,851 INFO L495 AbstractCegarLoop]: Abstraction has has 1647 places, 1714 transitions, 3438 flow [2023-11-21 21:03:59,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:59,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:03:59,854 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:59,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 21:03:59,854 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-21 21:03:59,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:59,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1385452071, now seen corresponding path program 1 times [2023-11-21 21:03:59,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:59,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950015122] [2023-11-21 21:03:59,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:59,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:59,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:03:59,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:59,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950015122] [2023-11-21 21:03:59,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950015122] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:03:59,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:03:59,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:03:59,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549034561] [2023-11-21 21:03:59,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:03:59,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:03:59,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:59,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:03:59,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:03:59,989 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1736 out of 1789 [2023-11-21 21:03:59,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1647 places, 1714 transitions, 3438 flow. Second operand has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:59,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:03:59,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1736 of 1789 [2023-11-21 21:03:59,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:04:02,456 INFO L124 PetriNetUnfolderBase]: 172/3545 cut-off events. [2023-11-21 21:04:02,457 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2023-11-21 21:04:02,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3583 conditions, 3545 events. 172/3545 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 23163 event pairs, 7 based on Foata normal form. 0/2829 useless extension candidates. Maximal degree in co-relation 3521. Up to 25 conditions per place. [2023-11-21 21:04:02,713 INFO L140 encePairwiseOnDemand]: 1786/1789 looper letters, 11 selfloop transitions, 2 changer transitions 0/1713 dead transitions. [2023-11-21 21:04:02,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1648 places, 1713 transitions, 3462 flow [2023-11-21 21:04:02,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:04:02,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:04:02,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5222 transitions. [2023-11-21 21:04:02,734 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9729830445313956 [2023-11-21 21:04:02,734 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5222 transitions. [2023-11-21 21:04:02,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5222 transitions. [2023-11-21 21:04:02,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:04:02,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5222 transitions. [2023-11-21 21:04:02,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1740.6666666666667) internal successors, (5222), 3 states have internal predecessors, (5222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:02,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:02,775 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:02,775 INFO L175 Difference]: Start difference. First operand has 1647 places, 1714 transitions, 3438 flow. Second operand 3 states and 5222 transitions. [2023-11-21 21:04:02,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1648 places, 1713 transitions, 3462 flow [2023-11-21 21:04:02,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1646 places, 1713 transitions, 3458 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:04:02,819 INFO L231 Difference]: Finished difference. Result has 1646 places, 1713 transitions, 3436 flow [2023-11-21 21:04:02,823 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3432, PETRI_DIFFERENCE_MINUEND_PLACES=1644, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1713, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1711, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3436, PETRI_PLACES=1646, PETRI_TRANSITIONS=1713} [2023-11-21 21:04:02,824 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -14 predicate places. [2023-11-21 21:04:02,824 INFO L495 AbstractCegarLoop]: Abstraction has has 1646 places, 1713 transitions, 3436 flow [2023-11-21 21:04:02,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:02,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:04:02,827 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] [2023-11-21 21:04:02,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 21:04:02,827 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-21 21:04:02,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:04:02,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1341153435, now seen corresponding path program 1 times [2023-11-21 21:04:02,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:04:02,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544429026] [2023-11-21 21:04:02,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:04:02,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:04:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:04:02,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:04:02,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:04:02,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544429026] [2023-11-21 21:04:02,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544429026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:04:02,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:04:02,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:04:02,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310544347] [2023-11-21 21:04:02,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:04:02,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:04:02,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:04:02,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:04:02,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:04:02,948 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1736 out of 1789 [2023-11-21 21:04:02,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1646 places, 1713 transitions, 3436 flow. Second operand has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:02,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:04:02,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1736 of 1789 [2023-11-21 21:04:02,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:04:04,633 INFO L124 PetriNetUnfolderBase]: 103/2210 cut-off events. [2023-11-21 21:04:04,633 INFO L125 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2023-11-21 21:04:04,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2245 conditions, 2210 events. 103/2210 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 11479 event pairs, 7 based on Foata normal form. 0/1786 useless extension candidates. Maximal degree in co-relation 2175. Up to 25 conditions per place. [2023-11-21 21:04:04,757 INFO L140 encePairwiseOnDemand]: 1786/1789 looper letters, 11 selfloop transitions, 2 changer transitions 0/1712 dead transitions. [2023-11-21 21:04:04,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1647 places, 1712 transitions, 3460 flow [2023-11-21 21:04:04,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:04:04,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:04:04,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5222 transitions. [2023-11-21 21:04:04,775 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9729830445313956 [2023-11-21 21:04:04,775 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5222 transitions. [2023-11-21 21:04:04,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5222 transitions. [2023-11-21 21:04:04,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:04:04,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5222 transitions. [2023-11-21 21:04:04,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1740.6666666666667) internal successors, (5222), 3 states have internal predecessors, (5222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:04,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:04,810 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:04,810 INFO L175 Difference]: Start difference. First operand has 1646 places, 1713 transitions, 3436 flow. Second operand 3 states and 5222 transitions. [2023-11-21 21:04:04,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1647 places, 1712 transitions, 3460 flow [2023-11-21 21:04:04,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1645 places, 1712 transitions, 3456 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:04:04,845 INFO L231 Difference]: Finished difference. Result has 1645 places, 1712 transitions, 3434 flow [2023-11-21 21:04:04,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3430, PETRI_DIFFERENCE_MINUEND_PLACES=1643, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1712, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1710, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3434, PETRI_PLACES=1645, PETRI_TRANSITIONS=1712} [2023-11-21 21:04:04,850 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -15 predicate places. [2023-11-21 21:04:04,850 INFO L495 AbstractCegarLoop]: Abstraction has has 1645 places, 1712 transitions, 3434 flow [2023-11-21 21:04:04,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:04,852 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:04:04,852 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] [2023-11-21 21:04:04,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 21:04:04,853 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-21 21:04:04,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:04:04,853 INFO L85 PathProgramCache]: Analyzing trace with hash -570911808, now seen corresponding path program 1 times [2023-11-21 21:04:04,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:04:04,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958726931] [2023-11-21 21:04:04,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:04:04,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:04:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:04:04,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:04:04,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:04:04,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958726931] [2023-11-21 21:04:04,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958726931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:04:04,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:04:04,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:04:04,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258689321] [2023-11-21 21:04:04,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:04:04,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:04:04,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:04:04,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:04:04,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:04:04,945 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1736 out of 1789 [2023-11-21 21:04:04,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1645 places, 1712 transitions, 3434 flow. Second operand has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:04,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:04:04,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1736 of 1789 [2023-11-21 21:04:04,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:04:06,765 INFO L124 PetriNetUnfolderBase]: 103/2209 cut-off events. [2023-11-21 21:04:06,765 INFO L125 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2023-11-21 21:04:06,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2244 conditions, 2209 events. 103/2209 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 11758 event pairs, 7 based on Foata normal form. 0/1788 useless extension candidates. Maximal degree in co-relation 2166. Up to 25 conditions per place. [2023-11-21 21:04:06,893 INFO L140 encePairwiseOnDemand]: 1786/1789 looper letters, 11 selfloop transitions, 2 changer transitions 0/1711 dead transitions. [2023-11-21 21:04:06,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1646 places, 1711 transitions, 3458 flow [2023-11-21 21:04:06,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:04:06,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:04:06,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5222 transitions. [2023-11-21 21:04:06,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9729830445313956 [2023-11-21 21:04:06,909 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5222 transitions. [2023-11-21 21:04:06,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5222 transitions. [2023-11-21 21:04:06,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:04:06,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5222 transitions. [2023-11-21 21:04:06,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1740.6666666666667) internal successors, (5222), 3 states have internal predecessors, (5222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:06,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:06,944 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:06,944 INFO L175 Difference]: Start difference. First operand has 1645 places, 1712 transitions, 3434 flow. Second operand 3 states and 5222 transitions. [2023-11-21 21:04:06,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1646 places, 1711 transitions, 3458 flow [2023-11-21 21:04:06,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1644 places, 1711 transitions, 3454 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:04:06,981 INFO L231 Difference]: Finished difference. Result has 1644 places, 1711 transitions, 3432 flow [2023-11-21 21:04:06,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3428, PETRI_DIFFERENCE_MINUEND_PLACES=1642, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1711, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1709, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3432, PETRI_PLACES=1644, PETRI_TRANSITIONS=1711} [2023-11-21 21:04:06,985 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -16 predicate places. [2023-11-21 21:04:06,986 INFO L495 AbstractCegarLoop]: Abstraction has has 1644 places, 1711 transitions, 3432 flow [2023-11-21 21:04:06,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:06,988 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:04:06,988 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:04:06,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 21:04:06,988 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-21 21:04:06,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:04:06,989 INFO L85 PathProgramCache]: Analyzing trace with hash -212333697, now seen corresponding path program 1 times [2023-11-21 21:04:06,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:04:06,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616700954] [2023-11-21 21:04:06,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:04:06,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:04:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:04:07,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:04:07,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:04:07,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616700954] [2023-11-21 21:04:07,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616700954] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:04:07,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:04:07,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:04:07,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948483265] [2023-11-21 21:04:07,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:04:07,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:04:07,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:04:07,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:04:07,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:04:07,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1728 out of 1789 [2023-11-21 21:04:07,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1644 places, 1711 transitions, 3432 flow. Second operand has 3 states, 3 states have (on average 1729.3333333333333) internal successors, (5188), 3 states have internal predecessors, (5188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:07,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:04:07,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1728 of 1789 [2023-11-21 21:04:07,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:04:13,452 INFO L124 PetriNetUnfolderBase]: 505/9882 cut-off events. [2023-11-21 21:04:13,452 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-21 21:04:13,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9965 conditions, 9882 events. 505/9882 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 89687 event pairs, 18 based on Foata normal form. 0/7794 useless extension candidates. Maximal degree in co-relation 9879. Up to 56 conditions per place. [2023-11-21 21:04:14,171 INFO L140 encePairwiseOnDemand]: 1786/1789 looper letters, 19 selfloop transitions, 2 changer transitions 0/1710 dead transitions. [2023-11-21 21:04:14,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1645 places, 1710 transitions, 3472 flow [2023-11-21 21:04:14,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:04:14,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:04:14,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5206 transitions. [2023-11-21 21:04:14,186 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9700018632383082 [2023-11-21 21:04:14,186 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5206 transitions. [2023-11-21 21:04:14,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5206 transitions. [2023-11-21 21:04:14,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:04:14,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5206 transitions. [2023-11-21 21:04:14,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1735.3333333333333) internal successors, (5206), 3 states have internal predecessors, (5206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:14,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:14,216 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:14,216 INFO L175 Difference]: Start difference. First operand has 1644 places, 1711 transitions, 3432 flow. Second operand 3 states and 5206 transitions. [2023-11-21 21:04:14,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1645 places, 1710 transitions, 3472 flow [2023-11-21 21:04:14,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1643 places, 1710 transitions, 3468 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:04:14,254 INFO L231 Difference]: Finished difference. Result has 1643 places, 1710 transitions, 3430 flow [2023-11-21 21:04:14,258 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3426, PETRI_DIFFERENCE_MINUEND_PLACES=1641, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1710, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1708, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3430, PETRI_PLACES=1643, PETRI_TRANSITIONS=1710} [2023-11-21 21:04:14,259 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -17 predicate places. [2023-11-21 21:04:14,259 INFO L495 AbstractCegarLoop]: Abstraction has has 1643 places, 1710 transitions, 3430 flow [2023-11-21 21:04:14,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1729.3333333333333) internal successors, (5188), 3 states have internal predecessors, (5188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:14,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:04:14,262 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:04:14,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 21:04:14,262 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-21 21:04:14,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:04:14,263 INFO L85 PathProgramCache]: Analyzing trace with hash 476182430, now seen corresponding path program 1 times [2023-11-21 21:04:14,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:04:14,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094425393] [2023-11-21 21:04:14,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:04:14,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:04:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:04:14,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:04:14,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:04:14,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094425393] [2023-11-21 21:04:14,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094425393] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:04:14,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:04:14,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:04:14,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879899791] [2023-11-21 21:04:14,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:04:14,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:04:14,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:04:14,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:04:14,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:04:14,457 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1723 out of 1789 [2023-11-21 21:04:14,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1643 places, 1710 transitions, 3430 flow. Second operand has 3 states, 3 states have (on average 1724.3333333333333) internal successors, (5173), 3 states have internal predecessors, (5173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:14,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:04:14,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1723 of 1789 [2023-11-21 21:04:14,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:04:24,462 INFO L124 PetriNetUnfolderBase]: 793/15329 cut-off events. [2023-11-21 21:04:24,462 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-21 21:04:25,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15453 conditions, 15329 events. 793/15329 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 155440 event pairs, 30 based on Foata normal form. 0/12064 useless extension candidates. Maximal degree in co-relation 15359. Up to 85 conditions per place. [2023-11-21 21:04:25,646 INFO L140 encePairwiseOnDemand]: 1786/1789 looper letters, 24 selfloop transitions, 2 changer transitions 0/1709 dead transitions. [2023-11-21 21:04:25,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1644 places, 1709 transitions, 3480 flow [2023-11-21 21:04:25,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:04:25,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:04:25,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5196 transitions. [2023-11-21 21:04:25,656 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9681386249301286 [2023-11-21 21:04:25,656 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5196 transitions. [2023-11-21 21:04:25,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5196 transitions. [2023-11-21 21:04:25,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:04:25,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5196 transitions. [2023-11-21 21:04:25,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1732.0) internal successors, (5196), 3 states have internal predecessors, (5196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:25,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:25,681 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:25,682 INFO L175 Difference]: Start difference. First operand has 1643 places, 1710 transitions, 3430 flow. Second operand 3 states and 5196 transitions. [2023-11-21 21:04:25,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1644 places, 1709 transitions, 3480 flow [2023-11-21 21:04:25,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1642 places, 1709 transitions, 3476 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:04:25,718 INFO L231 Difference]: Finished difference. Result has 1642 places, 1709 transitions, 3428 flow [2023-11-21 21:04:25,721 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3424, PETRI_DIFFERENCE_MINUEND_PLACES=1640, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1709, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1707, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3428, PETRI_PLACES=1642, PETRI_TRANSITIONS=1709} [2023-11-21 21:04:25,722 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -18 predicate places. [2023-11-21 21:04:25,722 INFO L495 AbstractCegarLoop]: Abstraction has has 1642 places, 1709 transitions, 3428 flow [2023-11-21 21:04:25,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1724.3333333333333) internal successors, (5173), 3 states have internal predecessors, (5173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:25,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:04:25,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:04:25,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 21:04:25,725 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-21 21:04:25,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:04:25,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1908729497, now seen corresponding path program 1 times [2023-11-21 21:04:25,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:04:25,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875334623] [2023-11-21 21:04:25,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:04:25,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:04:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:04:25,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:04:25,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:04:25,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875334623] [2023-11-21 21:04:25,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875334623] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:04:25,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:04:25,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:04:25,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499500942] [2023-11-21 21:04:25,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:04:25,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:04:25,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:04:25,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:04:25,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:04:25,836 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1728 out of 1789 [2023-11-21 21:04:25,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1642 places, 1709 transitions, 3428 flow. Second operand has 3 states, 3 states have (on average 1729.3333333333333) internal successors, (5188), 3 states have internal predecessors, (5188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:25,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:04:25,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1728 of 1789 [2023-11-21 21:04:25,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:04:31,317 INFO L124 PetriNetUnfolderBase]: 298/5902 cut-off events. [2023-11-21 21:04:31,317 INFO L125 PetriNetUnfolderBase]: For 12/15 co-relation queries the response was YES. [2023-11-21 21:04:31,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5976 conditions, 5902 events. 298/5902 cut-off events. For 12/15 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 44507 event pairs, 18 based on Foata normal form. 0/4687 useless extension candidates. Maximal degree in co-relation 5874. Up to 56 conditions per place. [2023-11-21 21:04:31,727 INFO L140 encePairwiseOnDemand]: 1786/1789 looper letters, 19 selfloop transitions, 2 changer transitions 0/1708 dead transitions. [2023-11-21 21:04:31,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1643 places, 1708 transitions, 3468 flow [2023-11-21 21:04:31,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:04:31,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:04:31,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5206 transitions. [2023-11-21 21:04:31,740 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9700018632383082 [2023-11-21 21:04:31,740 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5206 transitions. [2023-11-21 21:04:31,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5206 transitions. [2023-11-21 21:04:31,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:04:31,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5206 transitions. [2023-11-21 21:04:31,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1735.3333333333333) internal successors, (5206), 3 states have internal predecessors, (5206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:31,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:31,759 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:31,759 INFO L175 Difference]: Start difference. First operand has 1642 places, 1709 transitions, 3428 flow. Second operand 3 states and 5206 transitions. [2023-11-21 21:04:31,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1643 places, 1708 transitions, 3468 flow [2023-11-21 21:04:31,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1641 places, 1708 transitions, 3464 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:04:31,795 INFO L231 Difference]: Finished difference. Result has 1641 places, 1708 transitions, 3426 flow [2023-11-21 21:04:31,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3422, PETRI_DIFFERENCE_MINUEND_PLACES=1639, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1708, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1706, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3426, PETRI_PLACES=1641, PETRI_TRANSITIONS=1708} [2023-11-21 21:04:31,799 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -19 predicate places. [2023-11-21 21:04:31,799 INFO L495 AbstractCegarLoop]: Abstraction has has 1641 places, 1708 transitions, 3426 flow [2023-11-21 21:04:31,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1729.3333333333333) internal successors, (5188), 3 states have internal predecessors, (5188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:31,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:04:31,801 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:04:31,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 21:04:31,801 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-21 21:04:31,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:04:31,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1630514789, now seen corresponding path program 1 times [2023-11-21 21:04:31,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:04:31,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807360394] [2023-11-21 21:04:31,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:04:31,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:04:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:04:31,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:04:31,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:04:31,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807360394] [2023-11-21 21:04:31,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807360394] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:04:31,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:04:31,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:04:31,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201838923] [2023-11-21 21:04:31,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:04:31,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:04:31,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:04:31,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:04:31,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:04:31,926 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1723 out of 1789 [2023-11-21 21:04:31,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1641 places, 1708 transitions, 3426 flow. Second operand has 3 states, 3 states have (on average 1724.3333333333333) internal successors, (5173), 3 states have internal predecessors, (5173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:04:31,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:04:31,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1723 of 1789 [2023-11-21 21:04:31,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand