./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/bench-exp3x3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf6b72a-409c-4652-ba19-0452d088d408/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf6b72a-409c-4652-ba19-0452d088d408/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf6b72a-409c-4652-ba19-0452d088d408/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf6b72a-409c-4652-ba19-0452d088d408/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/bench-exp3x3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf6b72a-409c-4652-ba19-0452d088d408/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf6b72a-409c-4652-ba19-0452d088d408/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 21325645cf7d2c394d0eaa1628a16a96624f1addcdd1b56c7e8aa2473acfaf07 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:01:29,156 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:01:29,232 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf6b72a-409c-4652-ba19-0452d088d408/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 12:01:29,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:01:29,238 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:01:29,263 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:01:29,264 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:01:29,264 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:01:29,265 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:01:29,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:01:29,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:01:29,267 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:01:29,268 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:01:29,268 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:01:29,269 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:01:29,269 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:01:29,270 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:01:29,270 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:01:29,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:01:29,272 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:01:29,272 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:01:29,279 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:01:29,280 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 12:01:29,280 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:01:29,281 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:01:29,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:01:29,282 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:01:29,282 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:01:29,283 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:01:29,283 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:01:29,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:01:29,284 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:01:29,285 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:01:29,285 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:01:29,286 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:01:29,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:01:29,287 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:01:29,287 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:01:29,295 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:01:29,296 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:01:29,296 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:01:29,297 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_dcf6b72a-409c-4652-ba19-0452d088d408/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf6b72a-409c-4652-ba19-0452d088d408/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21325645cf7d2c394d0eaa1628a16a96624f1addcdd1b56c7e8aa2473acfaf07 [2023-11-26 12:01:29,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:01:29,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:01:29,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:01:29,618 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:01:29,619 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:01:29,620 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf6b72a-409c-4652-ba19-0452d088d408/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/bench-exp3x3.wvr.c [2023-11-26 12:01:32,895 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:01:33,128 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:01:33,129 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf6b72a-409c-4652-ba19-0452d088d408/sv-benchmarks/c/weaver/bench-exp3x3.wvr.c [2023-11-26 12:01:33,140 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf6b72a-409c-4652-ba19-0452d088d408/bin/uautomizer-verify-VRDe98Ueme/data/f66d34886/b7766c1ad59d405cae3424cb74ec3b5b/FLAGda22f3b1a [2023-11-26 12:01:33,155 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf6b72a-409c-4652-ba19-0452d088d408/bin/uautomizer-verify-VRDe98Ueme/data/f66d34886/b7766c1ad59d405cae3424cb74ec3b5b [2023-11-26 12:01:33,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:01:33,171 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:01:33,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:01:33,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:01:33,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:01:33,183 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@490bc0cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33, skipping insertion in model container [2023-11-26 12:01:33,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,221 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:01:33,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:01:33,510 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:01:33,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:01:33,561 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:01:33,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33 WrapperNode [2023-11-26 12:01:33,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:01:33,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:01:33,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:01:33,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:01:33,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,629 INFO L138 Inliner]: procedures = 22, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 249 [2023-11-26 12:01:33,630 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:01:33,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:01:33,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:01:33,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:01:33,640 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,648 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,649 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,674 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,676 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:01:33,689 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:01:33,689 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:01:33,689 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:01:33,690 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (1/1) ... [2023-11-26 12:01:33,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:01:33,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf6b72a-409c-4652-ba19-0452d088d408/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:33,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf6b72a-409c-4652-ba19-0452d088d408/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:01:33,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcf6b72a-409c-4652-ba19-0452d088d408/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:01:33,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:01:33,761 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 12:01:33,761 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 12:01:33,762 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 12:01:33,762 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 12:01:33,762 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 12:01:33,762 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 12:01:33,762 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-26 12:01:33,762 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-26 12:01:33,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 12:01:33,763 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-26 12:01:33,763 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-26 12:01:33,763 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-26 12:01:33,763 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-26 12:01:33,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:01:33,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 12:01:33,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:01:33,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:01:33,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 12:01:33,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:01:33,766 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 12:01:33,899 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:01:33,903 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:01:34,561 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:01:34,584 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:01:34,584 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-26 12:01:34,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:34 BoogieIcfgContainer [2023-11-26 12:01:34,586 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:01:34,589 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:01:34,589 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:01:34,593 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:01:34,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:01:33" (1/3) ... [2023-11-26 12:01:34,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c16bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:01:34, skipping insertion in model container [2023-11-26 12:01:34,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:33" (2/3) ... [2023-11-26 12:01:34,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c16bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:01:34, skipping insertion in model container [2023-11-26 12:01:34,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:34" (3/3) ... [2023-11-26 12:01:34,596 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3.wvr.c [2023-11-26 12:01:34,605 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 12:01:34,613 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:01:34,614 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2023-11-26 12:01:34,614 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 12:01:34,827 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2023-11-26 12:01:34,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 431 places, 433 transitions, 908 flow [2023-11-26 12:01:35,058 INFO L124 PetriNetUnfolderBase]: 21/427 cut-off events. [2023-11-26 12:01:35,058 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-26 12:01:35,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 427 events. 21/427 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 707 event pairs, 0 based on Foata normal form. 0/348 useless extension candidates. Maximal degree in co-relation 300. Up to 2 conditions per place. [2023-11-26 12:01:35,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 431 places, 433 transitions, 908 flow [2023-11-26 12:01:35,087 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 394 places, 394 transitions, 824 flow [2023-11-26 12:01:35,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:01:35,105 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;@5a0490e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:01:35,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 94 error locations. [2023-11-26 12:01:35,111 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:01:35,111 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2023-11-26 12:01:35,111 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:01:35,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:35,112 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] [2023-11-26 12:01:35,113 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:01:35,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:35,118 INFO L85 PathProgramCache]: Analyzing trace with hash -549932649, now seen corresponding path program 1 times [2023-11-26 12:01:35,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:35,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767330301] [2023-11-26 12:01:35,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:35,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:35,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:35,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:35,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767330301] [2023-11-26 12:01:35,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767330301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:35,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:35,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:35,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120228428] [2023-11-26 12:01:35,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:35,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:35,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:35,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:35,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:35,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 433 [2023-11-26 12:01:35,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 394 transitions, 824 flow. Second operand has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:35,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:35,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 433 [2023-11-26 12:01:35,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:35,816 INFO L124 PetriNetUnfolderBase]: 37/521 cut-off events. [2023-11-26 12:01:35,816 INFO L125 PetriNetUnfolderBase]: For 44/46 co-relation queries the response was YES. [2023-11-26 12:01:35,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 656 conditions, 521 events. 37/521 cut-off events. For 44/46 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1750 event pairs, 20 based on Foata normal form. 91/508 useless extension candidates. Maximal degree in co-relation 485. Up to 68 conditions per place. [2023-11-26 12:01:35,831 INFO L140 encePairwiseOnDemand]: 423/433 looper letters, 22 selfloop transitions, 2 changer transitions 1/386 dead transitions. [2023-11-26 12:01:35,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 386 transitions, 856 flow [2023-11-26 12:01:35,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:35,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:01:35,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1226 transitions. [2023-11-26 12:01:35,851 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9438029253271748 [2023-11-26 12:01:35,852 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1226 transitions. [2023-11-26 12:01:35,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1226 transitions. [2023-11-26 12:01:35,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:35,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1226 transitions. [2023-11-26 12:01:35,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 408.6666666666667) internal successors, (1226), 3 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:35,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:35,881 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:35,883 INFO L175 Difference]: Start difference. First operand has 394 places, 394 transitions, 824 flow. Second operand 3 states and 1226 transitions. [2023-11-26 12:01:35,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 386 transitions, 856 flow [2023-11-26 12:01:35,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 386 transitions, 832 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-26 12:01:35,907 INFO L231 Difference]: Finished difference. Result has 383 places, 385 transitions, 786 flow [2023-11-26 12:01:35,910 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=786, PETRI_PLACES=383, PETRI_TRANSITIONS=385} [2023-11-26 12:01:35,914 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -11 predicate places. [2023-11-26 12:01:35,915 INFO L495 AbstractCegarLoop]: Abstraction has has 383 places, 385 transitions, 786 flow [2023-11-26 12:01:35,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:35,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:35,917 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] [2023-11-26 12:01:35,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:01:35,918 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:01:35,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:35,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1657196562, now seen corresponding path program 1 times [2023-11-26 12:01:35,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:35,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062817475] [2023-11-26 12:01:35,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:35,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:36,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:36,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:36,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062817475] [2023-11-26 12:01:36,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062817475] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:36,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:36,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:36,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457311296] [2023-11-26 12:01:36,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:36,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:36,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:36,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:36,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:36,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 433 [2023-11-26 12:01:36,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 385 transitions, 786 flow. Second operand has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:36,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:36,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 433 [2023-11-26 12:01:36,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:36,349 INFO L124 PetriNetUnfolderBase]: 37/519 cut-off events. [2023-11-26 12:01:36,350 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-26 12:01:36,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 519 events. 37/519 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1681 event pairs, 20 based on Foata normal form. 0/416 useless extension candidates. Maximal degree in co-relation 580. Up to 67 conditions per place. [2023-11-26 12:01:36,363 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 21 selfloop transitions, 2 changer transitions 0/384 dead transitions. [2023-11-26 12:01:36,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 384 transitions, 830 flow [2023-11-26 12:01:36,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:36,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:01:36,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1221 transitions. [2023-11-26 12:01:36,369 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9399538106235565 [2023-11-26 12:01:36,370 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1221 transitions. [2023-11-26 12:01:36,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1221 transitions. [2023-11-26 12:01:36,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:36,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1221 transitions. [2023-11-26 12:01:36,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:36,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:36,382 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:36,382 INFO L175 Difference]: Start difference. First operand has 383 places, 385 transitions, 786 flow. Second operand 3 states and 1221 transitions. [2023-11-26 12:01:36,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 384 transitions, 830 flow [2023-11-26 12:01:36,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 384 transitions, 826 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:01:36,395 INFO L231 Difference]: Finished difference. Result has 381 places, 384 transitions, 784 flow [2023-11-26 12:01:36,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=784, PETRI_PLACES=381, PETRI_TRANSITIONS=384} [2023-11-26 12:01:36,400 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -13 predicate places. [2023-11-26 12:01:36,400 INFO L495 AbstractCegarLoop]: Abstraction has has 381 places, 384 transitions, 784 flow [2023-11-26 12:01:36,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:36,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:36,403 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] [2023-11-26 12:01:36,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:01:36,404 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:01:36,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:36,414 INFO L85 PathProgramCache]: Analyzing trace with hash -955341069, now seen corresponding path program 1 times [2023-11-26 12:01:36,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:36,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647748959] [2023-11-26 12:01:36,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:36,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:36,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:36,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:36,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647748959] [2023-11-26 12:01:36,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647748959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:36,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:36,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:36,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250735400] [2023-11-26 12:01:36,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:36,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:36,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:36,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:36,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:36,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 433 [2023-11-26 12:01:36,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 384 transitions, 784 flow. Second operand has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:36,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:36,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 433 [2023-11-26 12:01:36,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:36,736 INFO L124 PetriNetUnfolderBase]: 37/518 cut-off events. [2023-11-26 12:01:36,736 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-26 12:01:36,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 518 events. 37/518 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1638 event pairs, 20 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 569. Up to 68 conditions per place. [2023-11-26 12:01:36,750 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 22 selfloop transitions, 2 changer transitions 0/383 dead transitions. [2023-11-26 12:01:36,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 383 transitions, 830 flow [2023-11-26 12:01:36,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:36,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:01:36,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1219 transitions. [2023-11-26 12:01:36,756 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9384141647421094 [2023-11-26 12:01:36,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1219 transitions. [2023-11-26 12:01:36,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1219 transitions. [2023-11-26 12:01:36,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:36,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1219 transitions. [2023-11-26 12:01:36,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:36,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:36,768 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:36,768 INFO L175 Difference]: Start difference. First operand has 381 places, 384 transitions, 784 flow. Second operand 3 states and 1219 transitions. [2023-11-26 12:01:36,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 383 transitions, 830 flow [2023-11-26 12:01:36,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 383 transitions, 826 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:01:36,778 INFO L231 Difference]: Finished difference. Result has 380 places, 383 transitions, 782 flow [2023-11-26 12:01:36,779 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=778, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=782, PETRI_PLACES=380, PETRI_TRANSITIONS=383} [2023-11-26 12:01:36,781 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -14 predicate places. [2023-11-26 12:01:36,782 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 383 transitions, 782 flow [2023-11-26 12:01:36,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:36,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:36,783 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] [2023-11-26 12:01:36,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:01:36,784 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:01:36,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:36,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1179292841, now seen corresponding path program 1 times [2023-11-26 12:01:36,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:36,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385841412] [2023-11-26 12:01:36,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:36,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:36,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:36,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:36,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385841412] [2023-11-26 12:01:36,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385841412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:36,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:36,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:36,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702242800] [2023-11-26 12:01:36,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:36,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:36,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:36,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:36,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:36,960 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 433 [2023-11-26 12:01:36,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 383 transitions, 782 flow. Second operand has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:36,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:36,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 433 [2023-11-26 12:01:36,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:37,133 INFO L124 PetriNetUnfolderBase]: 37/517 cut-off events. [2023-11-26 12:01:37,133 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2023-11-26 12:01:37,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 517 events. 37/517 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1572 event pairs, 20 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 556. Up to 67 conditions per place. [2023-11-26 12:01:37,145 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 21 selfloop transitions, 2 changer transitions 0/382 dead transitions. [2023-11-26 12:01:37,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 382 transitions, 826 flow [2023-11-26 12:01:37,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:37,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:01:37,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1221 transitions. [2023-11-26 12:01:37,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9399538106235565 [2023-11-26 12:01:37,150 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1221 transitions. [2023-11-26 12:01:37,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1221 transitions. [2023-11-26 12:01:37,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:37,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1221 transitions. [2023-11-26 12:01:37,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:37,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:37,161 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:37,162 INFO L175 Difference]: Start difference. First operand has 380 places, 383 transitions, 782 flow. Second operand 3 states and 1221 transitions. [2023-11-26 12:01:37,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 382 transitions, 826 flow [2023-11-26 12:01:37,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 382 transitions, 822 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:01:37,171 INFO L231 Difference]: Finished difference. Result has 379 places, 382 transitions, 780 flow [2023-11-26 12:01:37,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=780, PETRI_PLACES=379, PETRI_TRANSITIONS=382} [2023-11-26 12:01:37,174 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -15 predicate places. [2023-11-26 12:01:37,175 INFO L495 AbstractCegarLoop]: Abstraction has has 379 places, 382 transitions, 780 flow [2023-11-26 12:01:37,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:37,176 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:37,176 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] [2023-11-26 12:01:37,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:01:37,177 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:01:37,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:37,177 INFO L85 PathProgramCache]: Analyzing trace with hash -192845590, now seen corresponding path program 1 times [2023-11-26 12:01:37,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:37,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449713794] [2023-11-26 12:01:37,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:37,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:37,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:37,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:37,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449713794] [2023-11-26 12:01:37,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449713794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:37,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:37,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:37,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651841665] [2023-11-26 12:01:37,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:37,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:37,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:37,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:37,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:37,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 433 [2023-11-26 12:01:37,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 382 transitions, 780 flow. Second operand has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:37,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:37,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 433 [2023-11-26 12:01:37,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:37,470 INFO L124 PetriNetUnfolderBase]: 37/516 cut-off events. [2023-11-26 12:01:37,472 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2023-11-26 12:01:37,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 516 events. 37/516 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1482 event pairs, 20 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 545. Up to 68 conditions per place. [2023-11-26 12:01:37,486 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 22 selfloop transitions, 2 changer transitions 0/381 dead transitions. [2023-11-26 12:01:37,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 381 transitions, 826 flow [2023-11-26 12:01:37,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:37,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:01:37,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1219 transitions. [2023-11-26 12:01:37,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9384141647421094 [2023-11-26 12:01:37,492 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1219 transitions. [2023-11-26 12:01:37,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1219 transitions. [2023-11-26 12:01:37,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:37,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1219 transitions. [2023-11-26 12:01:37,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:37,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:37,503 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:37,503 INFO L175 Difference]: Start difference. First operand has 379 places, 382 transitions, 780 flow. Second operand 3 states and 1219 transitions. [2023-11-26 12:01:37,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 381 transitions, 826 flow [2023-11-26 12:01:37,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 381 transitions, 822 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:01:37,513 INFO L231 Difference]: Finished difference. Result has 378 places, 381 transitions, 778 flow [2023-11-26 12:01:37,514 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=778, PETRI_PLACES=378, PETRI_TRANSITIONS=381} [2023-11-26 12:01:37,518 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -16 predicate places. [2023-11-26 12:01:37,519 INFO L495 AbstractCegarLoop]: Abstraction has has 378 places, 381 transitions, 778 flow [2023-11-26 12:01:37,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 399.3333333333333) internal successors, (1198), 3 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:37,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:37,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:37,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:01:37,521 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:01:37,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:37,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1605994722, now seen corresponding path program 1 times [2023-11-26 12:01:37,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:37,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178076967] [2023-11-26 12:01:37,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:37,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:37,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:37,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:37,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:37,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178076967] [2023-11-26 12:01:37,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178076967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:37,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:37,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:37,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526241580] [2023-11-26 12:01:37,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:37,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:37,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:37,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:37,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:37,652 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 433 [2023-11-26 12:01:37,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 381 transitions, 778 flow. Second operand has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:37,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:37,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 433 [2023-11-26 12:01:37,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:37,803 INFO L124 PetriNetUnfolderBase]: 37/515 cut-off events. [2023-11-26 12:01:37,803 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-11-26 12:01:37,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 515 events. 37/515 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1457 event pairs, 20 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 532. Up to 67 conditions per place. [2023-11-26 12:01:37,819 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 21 selfloop transitions, 2 changer transitions 0/380 dead transitions. [2023-11-26 12:01:37,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 380 transitions, 822 flow [2023-11-26 12:01:37,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:37,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:01:37,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1221 transitions. [2023-11-26 12:01:37,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9399538106235565 [2023-11-26 12:01:37,824 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1221 transitions. [2023-11-26 12:01:37,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1221 transitions. [2023-11-26 12:01:37,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:37,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1221 transitions. [2023-11-26 12:01:37,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:37,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:37,835 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:37,835 INFO L175 Difference]: Start difference. First operand has 378 places, 381 transitions, 778 flow. Second operand 3 states and 1221 transitions. [2023-11-26 12:01:37,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 380 transitions, 822 flow [2023-11-26 12:01:37,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 380 transitions, 818 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:01:37,844 INFO L231 Difference]: Finished difference. Result has 377 places, 380 transitions, 776 flow [2023-11-26 12:01:37,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=776, PETRI_PLACES=377, PETRI_TRANSITIONS=380} [2023-11-26 12:01:37,848 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -17 predicate places. [2023-11-26 12:01:37,849 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 380 transitions, 776 flow [2023-11-26 12:01:37,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:37,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:37,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:37,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:01:37,851 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:01:37,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:37,852 INFO L85 PathProgramCache]: Analyzing trace with hash -240772870, now seen corresponding path program 1 times [2023-11-26 12:01:37,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:37,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266606627] [2023-11-26 12:01:37,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:37,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:37,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:37,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:37,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266606627] [2023-11-26 12:01:37,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266606627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:37,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:37,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:37,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055084057] [2023-11-26 12:01:37,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:37,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:37,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:37,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:37,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:37,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 433 [2023-11-26 12:01:37,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 380 transitions, 776 flow. Second operand has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:37,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:37,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 433 [2023-11-26 12:01:37,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:39,165 INFO L124 PetriNetUnfolderBase]: 755/4819 cut-off events. [2023-11-26 12:01:39,165 INFO L125 PetriNetUnfolderBase]: For 63/80 co-relation queries the response was YES. [2023-11-26 12:01:39,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5824 conditions, 4819 events. 755/4819 cut-off events. For 63/80 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 45143 event pairs, 387 based on Foata normal form. 0/3549 useless extension candidates. Maximal degree in co-relation 5755. Up to 936 conditions per place. [2023-11-26 12:01:39,292 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 21 selfloop transitions, 2 changer transitions 0/379 dead transitions. [2023-11-26 12:01:39,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 379 transitions, 820 flow [2023-11-26 12:01:39,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:39,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:01:39,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1221 transitions. [2023-11-26 12:01:39,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9399538106235565 [2023-11-26 12:01:39,297 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1221 transitions. [2023-11-26 12:01:39,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1221 transitions. [2023-11-26 12:01:39,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:39,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1221 transitions. [2023-11-26 12:01:39,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:39,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:39,306 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:39,306 INFO L175 Difference]: Start difference. First operand has 377 places, 380 transitions, 776 flow. Second operand 3 states and 1221 transitions. [2023-11-26 12:01:39,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 379 transitions, 820 flow [2023-11-26 12:01:39,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 379 transitions, 816 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:01:39,315 INFO L231 Difference]: Finished difference. Result has 376 places, 379 transitions, 774 flow [2023-11-26 12:01:39,316 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=774, PETRI_PLACES=376, PETRI_TRANSITIONS=379} [2023-11-26 12:01:39,317 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -18 predicate places. [2023-11-26 12:01:39,317 INFO L495 AbstractCegarLoop]: Abstraction has has 376 places, 379 transitions, 774 flow [2023-11-26 12:01:39,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:39,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:39,321 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] [2023-11-26 12:01:39,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:01:39,321 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:01:39,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:39,322 INFO L85 PathProgramCache]: Analyzing trace with hash 262272608, now seen corresponding path program 1 times [2023-11-26 12:01:39,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:39,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588688035] [2023-11-26 12:01:39,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:39,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:39,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:39,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:39,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588688035] [2023-11-26 12:01:39,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588688035] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:39,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:39,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:39,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229123434] [2023-11-26 12:01:39,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:39,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:39,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:39,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:39,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:39,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 392 out of 433 [2023-11-26 12:01:39,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 379 transitions, 774 flow. Second operand has 3 states, 3 states have (on average 393.0) internal successors, (1179), 3 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:39,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:39,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 392 of 433 [2023-11-26 12:01:39,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:39,606 INFO L124 PetriNetUnfolderBase]: 52/509 cut-off events. [2023-11-26 12:01:39,606 INFO L125 PetriNetUnfolderBase]: For 6/10 co-relation queries the response was YES. [2023-11-26 12:01:39,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 657 conditions, 509 events. 52/509 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1811 event pairs, 30 based on Foata normal form. 0/428 useless extension candidates. Maximal degree in co-relation 581. Up to 90 conditions per place. [2023-11-26 12:01:39,617 INFO L140 encePairwiseOnDemand]: 424/433 looper letters, 29 selfloop transitions, 3 changer transitions 0/379 dead transitions. [2023-11-26 12:01:39,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 379 transitions, 843 flow [2023-11-26 12:01:39,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:39,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:01:39,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1214 transitions. [2023-11-26 12:01:39,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9345650500384911 [2023-11-26 12:01:39,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1214 transitions. [2023-11-26 12:01:39,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1214 transitions. [2023-11-26 12:01:39,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:39,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1214 transitions. [2023-11-26 12:01:39,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 404.6666666666667) internal successors, (1214), 3 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:39,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:39,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:39,631 INFO L175 Difference]: Start difference. First operand has 376 places, 379 transitions, 774 flow. Second operand 3 states and 1214 transitions. [2023-11-26 12:01:39,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 379 transitions, 843 flow [2023-11-26 12:01:39,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 379 transitions, 839 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:01:39,640 INFO L231 Difference]: Finished difference. Result has 371 places, 374 transitions, 771 flow [2023-11-26 12:01:39,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=771, PETRI_PLACES=371, PETRI_TRANSITIONS=374} [2023-11-26 12:01:39,642 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -23 predicate places. [2023-11-26 12:01:39,642 INFO L495 AbstractCegarLoop]: Abstraction has has 371 places, 374 transitions, 771 flow [2023-11-26 12:01:39,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 393.0) internal successors, (1179), 3 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:39,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:39,644 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] [2023-11-26 12:01:39,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 12:01:39,644 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:01:39,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:39,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1359064935, now seen corresponding path program 1 times [2023-11-26 12:01:39,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:39,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226361528] [2023-11-26 12:01:39,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:39,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:39,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:39,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:39,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226361528] [2023-11-26 12:01:39,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226361528] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:39,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:39,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:39,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214187033] [2023-11-26 12:01:39,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:39,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:39,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:39,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:39,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:39,719 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 395 out of 433 [2023-11-26 12:01:39,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 374 transitions, 771 flow. Second operand has 3 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:39,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:39,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 395 of 433 [2023-11-26 12:01:39,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:39,901 INFO L124 PetriNetUnfolderBase]: 52/505 cut-off events. [2023-11-26 12:01:39,902 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-26 12:01:39,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 648 conditions, 505 events. 52/505 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1785 event pairs, 30 based on Foata normal form. 0/427 useless extension candidates. Maximal degree in co-relation 563. Up to 88 conditions per place. [2023-11-26 12:01:39,913 INFO L140 encePairwiseOnDemand]: 425/433 looper letters, 27 selfloop transitions, 3 changer transitions 0/375 dead transitions. [2023-11-26 12:01:39,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 375 transitions, 838 flow [2023-11-26 12:01:39,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:39,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:01:39,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1220 transitions. [2023-11-26 12:01:39,918 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.939183987682833 [2023-11-26 12:01:39,919 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1220 transitions. [2023-11-26 12:01:39,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1220 transitions. [2023-11-26 12:01:39,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:39,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1220 transitions. [2023-11-26 12:01:39,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:39,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:39,938 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:39,938 INFO L175 Difference]: Start difference. First operand has 371 places, 374 transitions, 771 flow. Second operand 3 states and 1220 transitions. [2023-11-26 12:01:39,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 375 transitions, 838 flow [2023-11-26 12:01:39,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 375 transitions, 835 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:01:39,957 INFO L231 Difference]: Finished difference. Result has 368 places, 370 transitions, 771 flow [2023-11-26 12:01:39,958 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=771, PETRI_PLACES=368, PETRI_TRANSITIONS=370} [2023-11-26 12:01:39,959 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -26 predicate places. [2023-11-26 12:01:39,959 INFO L495 AbstractCegarLoop]: Abstraction has has 368 places, 370 transitions, 771 flow [2023-11-26 12:01:39,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:39,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:39,961 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] [2023-11-26 12:01:39,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 12:01:39,961 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:01:39,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:39,962 INFO L85 PathProgramCache]: Analyzing trace with hash -511043295, now seen corresponding path program 1 times [2023-11-26 12:01:39,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:39,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690742399] [2023-11-26 12:01:39,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:39,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:40,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:40,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:40,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690742399] [2023-11-26 12:01:40,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690742399] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:40,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:40,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:40,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894387645] [2023-11-26 12:01:40,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:40,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:40,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:40,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:40,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:40,094 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 392 out of 433 [2023-11-26 12:01:40,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 370 transitions, 771 flow. Second operand has 3 states, 3 states have (on average 393.0) internal successors, (1179), 3 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:40,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:40,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 392 of 433 [2023-11-26 12:01:40,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:40,366 INFO L124 PetriNetUnfolderBase]: 70/878 cut-off events. [2023-11-26 12:01:40,366 INFO L125 PetriNetUnfolderBase]: For 24/28 co-relation queries the response was YES. [2023-11-26 12:01:40,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1048 conditions, 878 events. 70/878 cut-off events. For 24/28 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4352 event pairs, 25 based on Foata normal form. 0/739 useless extension candidates. Maximal degree in co-relation 951. Up to 96 conditions per place. [2023-11-26 12:01:40,389 INFO L140 encePairwiseOnDemand]: 423/433 looper letters, 32 selfloop transitions, 4 changer transitions 0/374 dead transitions. [2023-11-26 12:01:40,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 374 transitions, 859 flow [2023-11-26 12:01:40,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:40,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:01:40,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1218 transitions. [2023-11-26 12:01:40,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9376443418013857 [2023-11-26 12:01:40,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1218 transitions. [2023-11-26 12:01:40,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1218 transitions. [2023-11-26 12:01:40,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:40,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1218 transitions. [2023-11-26 12:01:40,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.0) internal successors, (1218), 3 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:40,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:40,404 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:40,404 INFO L175 Difference]: Start difference. First operand has 368 places, 370 transitions, 771 flow. Second operand 3 states and 1218 transitions. [2023-11-26 12:01:40,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 374 transitions, 859 flow [2023-11-26 12:01:40,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 374 transitions, 856 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:01:40,415 INFO L231 Difference]: Finished difference. Result has 364 places, 366 transitions, 776 flow [2023-11-26 12:01:40,416 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=776, PETRI_PLACES=364, PETRI_TRANSITIONS=366} [2023-11-26 12:01:40,417 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -30 predicate places. [2023-11-26 12:01:40,417 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 366 transitions, 776 flow [2023-11-26 12:01:40,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 393.0) internal successors, (1179), 3 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:40,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:40,418 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] [2023-11-26 12:01:40,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 12:01:40,418 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:01:40,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:40,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1486304676, now seen corresponding path program 1 times [2023-11-26 12:01:40,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:40,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507240977] [2023-11-26 12:01:40,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:40,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:40,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:40,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:40,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507240977] [2023-11-26 12:01:40,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507240977] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:40,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:40,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:40,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503449558] [2023-11-26 12:01:40,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:40,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:40,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:40,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:40,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:40,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 395 out of 433 [2023-11-26 12:01:40,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 366 transitions, 776 flow. Second operand has 3 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:40,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:40,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 395 of 433 [2023-11-26 12:01:40,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:40,749 INFO L124 PetriNetUnfolderBase]: 104/1021 cut-off events. [2023-11-26 12:01:40,749 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-26 12:01:40,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1294 conditions, 1021 events. 104/1021 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 5792 event pairs, 9 based on Foata normal form. 0/878 useless extension candidates. Maximal degree in co-relation 920. Up to 151 conditions per place. [2023-11-26 12:01:40,773 INFO L140 encePairwiseOnDemand]: 425/433 looper letters, 31 selfloop transitions, 3 changer transitions 0/371 dead transitions. [2023-11-26 12:01:40,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 371 transitions, 863 flow [2023-11-26 12:01:40,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:40,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:01:40,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1224 transitions. [2023-11-26 12:01:40,777 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9422632794457275 [2023-11-26 12:01:40,777 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1224 transitions. [2023-11-26 12:01:40,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1224 transitions. [2023-11-26 12:01:40,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:40,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1224 transitions. [2023-11-26 12:01:40,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 408.0) internal successors, (1224), 3 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:40,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:40,784 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:40,785 INFO L175 Difference]: Start difference. First operand has 364 places, 366 transitions, 776 flow. Second operand 3 states and 1224 transitions. [2023-11-26 12:01:40,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 371 transitions, 863 flow [2023-11-26 12:01:40,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 371 transitions, 859 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:01:40,794 INFO L231 Difference]: Finished difference. Result has 361 places, 362 transitions, 775 flow [2023-11-26 12:01:40,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=775, PETRI_PLACES=361, PETRI_TRANSITIONS=362} [2023-11-26 12:01:40,795 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -33 predicate places. [2023-11-26 12:01:40,795 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 362 transitions, 775 flow [2023-11-26 12:01:40,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:40,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:40,796 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] [2023-11-26 12:01:40,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 12:01:40,796 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:01:40,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:40,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1081218718, now seen corresponding path program 1 times [2023-11-26 12:01:40,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:40,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730981690] [2023-11-26 12:01:40,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:40,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:40,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:40,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:40,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730981690] [2023-11-26 12:01:40,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730981690] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:40,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:40,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:40,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585131124] [2023-11-26 12:01:40,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:40,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:40,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:40,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:40,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:40,865 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 392 out of 433 [2023-11-26 12:01:40,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 362 transitions, 775 flow. Second operand has 3 states, 3 states have (on average 393.0) internal successors, (1179), 3 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:40,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:40,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 392 of 433 [2023-11-26 12:01:40,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:41,249 INFO L124 PetriNetUnfolderBase]: 153/1634 cut-off events. [2023-11-26 12:01:41,249 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2023-11-26 12:01:41,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2056 conditions, 1634 events. 153/1634 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 11217 event pairs, 12 based on Foata normal form. 0/1427 useless extension candidates. Maximal degree in co-relation 1419. Up to 235 conditions per place. [2023-11-26 12:01:41,282 INFO L140 encePairwiseOnDemand]: 423/433 looper letters, 34 selfloop transitions, 4 changer transitions 0/368 dead transitions. [2023-11-26 12:01:41,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 368 transitions, 873 flow [2023-11-26 12:01:41,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:41,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:01:41,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1220 transitions. [2023-11-26 12:01:41,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.939183987682833 [2023-11-26 12:01:41,286 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1220 transitions. [2023-11-26 12:01:41,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1220 transitions. [2023-11-26 12:01:41,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:41,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1220 transitions. [2023-11-26 12:01:41,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:41,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:41,293 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:41,294 INFO L175 Difference]: Start difference. First operand has 361 places, 362 transitions, 775 flow. Second operand 3 states and 1220 transitions. [2023-11-26 12:01:41,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 368 transitions, 873 flow [2023-11-26 12:01:41,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 368 transitions, 870 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:01:41,302 INFO L231 Difference]: Finished difference. Result has 357 places, 358 transitions, 780 flow [2023-11-26 12:01:41,303 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=780, PETRI_PLACES=357, PETRI_TRANSITIONS=358} [2023-11-26 12:01:41,304 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -37 predicate places. [2023-11-26 12:01:41,304 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 358 transitions, 780 flow [2023-11-26 12:01:41,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 393.0) internal successors, (1179), 3 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:41,304 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:41,305 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:41,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 12:01:41,305 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:01:41,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:41,305 INFO L85 PathProgramCache]: Analyzing trace with hash 330918765, now seen corresponding path program 1 times [2023-11-26 12:01:41,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:41,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793190868] [2023-11-26 12:01:41,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:41,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:41,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:41,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:41,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793190868] [2023-11-26 12:01:41,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793190868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:41,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:41,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:41,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581377546] [2023-11-26 12:01:41,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:41,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:41,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:41,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:41,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:41,370 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 395 out of 433 [2023-11-26 12:01:41,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 358 transitions, 780 flow. Second operand has 3 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:41,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:41,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 395 of 433 [2023-11-26 12:01:41,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:41,921 INFO L124 PetriNetUnfolderBase]: 222/2345 cut-off events. [2023-11-26 12:01:41,921 INFO L125 PetriNetUnfolderBase]: For 169/173 co-relation queries the response was YES. [2023-11-26 12:01:41,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2970 conditions, 2345 events. 222/2345 cut-off events. For 169/173 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 18370 event pairs, 23 based on Foata normal form. 1/2066 useless extension candidates. Maximal degree in co-relation 1891. Up to 332 conditions per place. [2023-11-26 12:01:41,966 INFO L140 encePairwiseOnDemand]: 425/433 looper letters, 30 selfloop transitions, 3 changer transitions 19/365 dead transitions. [2023-11-26 12:01:41,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 365 transitions, 875 flow [2023-11-26 12:01:41,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:41,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:01:41,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1225 transitions. [2023-11-26 12:01:41,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9430331023864511 [2023-11-26 12:01:41,971 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1225 transitions. [2023-11-26 12:01:41,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1225 transitions. [2023-11-26 12:01:41,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:41,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1225 transitions. [2023-11-26 12:01:41,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 408.3333333333333) internal successors, (1225), 3 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:41,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:41,979 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:41,979 INFO L175 Difference]: Start difference. First operand has 357 places, 358 transitions, 780 flow. Second operand 3 states and 1225 transitions. [2023-11-26 12:01:41,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 365 transitions, 875 flow [2023-11-26 12:01:41,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 365 transitions, 871 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:01:41,989 INFO L231 Difference]: Finished difference. Result has 354 places, 335 transitions, 740 flow [2023-11-26 12:01:41,990 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=740, PETRI_PLACES=354, PETRI_TRANSITIONS=335} [2023-11-26 12:01:41,991 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -40 predicate places. [2023-11-26 12:01:41,991 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 335 transitions, 740 flow [2023-11-26 12:01:41,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:41,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:41,992 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] [2023-11-26 12:01:41,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 12:01:41,992 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:01:41,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:41,993 INFO L85 PathProgramCache]: Analyzing trace with hash -498504540, now seen corresponding path program 1 times [2023-11-26 12:01:41,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:41,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642826035] [2023-11-26 12:01:41,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:41,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:42,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:42,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:42,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642826035] [2023-11-26 12:01:42,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642826035] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:42,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:42,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:42,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358946067] [2023-11-26 12:01:42,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:42,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:42,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:42,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:42,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:42,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 433 [2023-11-26 12:01:42,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 335 transitions, 740 flow. Second operand has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:42,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:42,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 433 [2023-11-26 12:01:42,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:01:56,677 INFO L124 PetriNetUnfolderBase]: 18653/70621 cut-off events. [2023-11-26 12:01:56,677 INFO L125 PetriNetUnfolderBase]: For 1780/1943 co-relation queries the response was YES. [2023-11-26 12:01:57,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102231 conditions, 70621 events. 18653/70621 cut-off events. For 1780/1943 co-relation queries the response was YES. Maximal size of possible extension queue 2585. Compared 1052028 event pairs, 8500 based on Foata normal form. 9/61071 useless extension candidates. Maximal degree in co-relation 36105. Up to 23233 conditions per place. [2023-11-26 12:01:58,047 INFO L140 encePairwiseOnDemand]: 421/433 looper letters, 29 selfloop transitions, 6 changer transitions 0/340 dead transitions. [2023-11-26 12:01:58,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 340 transitions, 825 flow [2023-11-26 12:01:58,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:58,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:01:58,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1220 transitions. [2023-11-26 12:01:58,052 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.939183987682833 [2023-11-26 12:01:58,052 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1220 transitions. [2023-11-26 12:01:58,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1220 transitions. [2023-11-26 12:01:58,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:01:58,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1220 transitions. [2023-11-26 12:01:58,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:58,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:58,062 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:58,062 INFO L175 Difference]: Start difference. First operand has 354 places, 335 transitions, 740 flow. Second operand 3 states and 1220 transitions. [2023-11-26 12:01:58,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 340 transitions, 825 flow [2023-11-26 12:01:58,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 340 transitions, 822 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:01:58,322 INFO L231 Difference]: Finished difference. Result has 332 places, 335 transitions, 767 flow [2023-11-26 12:01:58,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=725, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=767, PETRI_PLACES=332, PETRI_TRANSITIONS=335} [2023-11-26 12:01:58,324 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -62 predicate places. [2023-11-26 12:01:58,324 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 335 transitions, 767 flow [2023-11-26 12:01:58,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:58,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:01:58,325 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, 1, 1, 1] [2023-11-26 12:01:58,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 12:01:58,325 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:01:58,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:58,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1077198239, now seen corresponding path program 1 times [2023-11-26 12:01:58,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:58,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982063977] [2023-11-26 12:01:58,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:58,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:58,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:58,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:58,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982063977] [2023-11-26 12:01:58,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982063977] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:58,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:58,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:58,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553518105] [2023-11-26 12:01:58,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:58,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:58,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:58,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:58,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:58,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 433 [2023-11-26 12:01:58,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 335 transitions, 767 flow. Second operand has 3 states, 3 states have (on average 403.0) internal successors, (1209), 3 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:58,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:01:58,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 433 [2023-11-26 12:01:58,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:00,835 INFO L124 PetriNetUnfolderBase]: 2051/10903 cut-off events. [2023-11-26 12:02:00,836 INFO L125 PetriNetUnfolderBase]: For 84/102 co-relation queries the response was YES. [2023-11-26 12:02:00,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15378 conditions, 10903 events. 2051/10903 cut-off events. For 84/102 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 131268 event pairs, 546 based on Foata normal form. 0/9291 useless extension candidates. Maximal degree in co-relation 8432. Up to 2106 conditions per place. [2023-11-26 12:02:01,094 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 25 selfloop transitions, 2 changer transitions 0/339 dead transitions. [2023-11-26 12:02:01,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 339 transitions, 834 flow [2023-11-26 12:02:01,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:01,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:01,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1227 transitions. [2023-11-26 12:02:01,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9445727482678984 [2023-11-26 12:02:01,100 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1227 transitions. [2023-11-26 12:02:01,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1227 transitions. [2023-11-26 12:02:01,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:01,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1227 transitions. [2023-11-26 12:02:01,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:01,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:01,111 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:01,111 INFO L175 Difference]: Start difference. First operand has 332 places, 335 transitions, 767 flow. Second operand 3 states and 1227 transitions. [2023-11-26 12:02:01,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 339 transitions, 834 flow [2023-11-26 12:02:01,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 339 transitions, 834 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:02:01,125 INFO L231 Difference]: Finished difference. Result has 333 places, 334 transitions, 769 flow [2023-11-26 12:02:01,126 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=765, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=769, PETRI_PLACES=333, PETRI_TRANSITIONS=334} [2023-11-26 12:02:01,126 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -61 predicate places. [2023-11-26 12:02:01,126 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 334 transitions, 769 flow [2023-11-26 12:02:01,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 403.0) internal successors, (1209), 3 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:01,127 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:01,127 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:01,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 12:02:01,128 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:02:01,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:01,128 INFO L85 PathProgramCache]: Analyzing trace with hash 400150128, now seen corresponding path program 1 times [2023-11-26 12:02:01,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:01,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327333521] [2023-11-26 12:02:01,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:01,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:01,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:01,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:01,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327333521] [2023-11-26 12:02:01,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327333521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:01,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:01,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:01,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977094689] [2023-11-26 12:02:01,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:01,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:01,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:01,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:01,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:01,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 401 out of 433 [2023-11-26 12:02:01,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 334 transitions, 769 flow. Second operand has 3 states, 3 states have (on average 404.3333333333333) internal successors, (1213), 3 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:01,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:01,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 401 of 433 [2023-11-26 12:02:01,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:05,205 INFO L124 PetriNetUnfolderBase]: 3507/18059 cut-off events. [2023-11-26 12:02:05,206 INFO L125 PetriNetUnfolderBase]: For 429/438 co-relation queries the response was YES. [2023-11-26 12:02:05,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25937 conditions, 18059 events. 3507/18059 cut-off events. For 429/438 co-relation queries the response was YES. Maximal size of possible extension queue 603. Compared 236948 event pairs, 1169 based on Foata normal form. 0/15818 useless extension candidates. Maximal degree in co-relation 25148. Up to 2985 conditions per place. [2023-11-26 12:02:05,595 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 24 selfloop transitions, 2 changer transitions 0/338 dead transitions. [2023-11-26 12:02:05,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 338 transitions, 834 flow [2023-11-26 12:02:05,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:05,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:05,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1229 transitions. [2023-11-26 12:02:05,600 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9461123941493457 [2023-11-26 12:02:05,600 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1229 transitions. [2023-11-26 12:02:05,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1229 transitions. [2023-11-26 12:02:05,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:05,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1229 transitions. [2023-11-26 12:02:05,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 409.6666666666667) internal successors, (1229), 3 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:05,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:05,609 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:05,609 INFO L175 Difference]: Start difference. First operand has 333 places, 334 transitions, 769 flow. Second operand 3 states and 1229 transitions. [2023-11-26 12:02:05,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 338 transitions, 834 flow [2023-11-26 12:02:05,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 338 transitions, 830 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:02:05,624 INFO L231 Difference]: Finished difference. Result has 332 places, 333 transitions, 767 flow [2023-11-26 12:02:05,625 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=763, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=767, PETRI_PLACES=332, PETRI_TRANSITIONS=333} [2023-11-26 12:02:05,626 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -62 predicate places. [2023-11-26 12:02:05,626 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 333 transitions, 767 flow [2023-11-26 12:02:05,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 404.3333333333333) internal successors, (1213), 3 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:05,627 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:05,627 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:05,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 12:02:05,627 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:02:05,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:05,628 INFO L85 PathProgramCache]: Analyzing trace with hash 538070738, now seen corresponding path program 1 times [2023-11-26 12:02:05,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:05,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871193004] [2023-11-26 12:02:05,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:05,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:05,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:05,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:05,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871193004] [2023-11-26 12:02:05,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871193004] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:05,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:05,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:05,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218434115] [2023-11-26 12:02:05,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:05,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:05,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:05,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:05,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:05,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 433 [2023-11-26 12:02:05,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 333 transitions, 767 flow. Second operand has 3 states, 3 states have (on average 403.3333333333333) internal successors, (1210), 3 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:05,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:05,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 433 [2023-11-26 12:02:05,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:09,329 INFO L124 PetriNetUnfolderBase]: 3234/16112 cut-off events. [2023-11-26 12:02:09,330 INFO L125 PetriNetUnfolderBase]: For 631/666 co-relation queries the response was YES. [2023-11-26 12:02:09,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23628 conditions, 16112 events. 3234/16112 cut-off events. For 631/666 co-relation queries the response was YES. Maximal size of possible extension queue 552. Compared 203694 event pairs, 1093 based on Foata normal form. 0/14261 useless extension candidates. Maximal degree in co-relation 22492. Up to 2594 conditions per place. [2023-11-26 12:02:09,666 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 26 selfloop transitions, 2 changer transitions 0/337 dead transitions. [2023-11-26 12:02:09,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 337 transitions, 836 flow [2023-11-26 12:02:09,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:09,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:09,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1227 transitions. [2023-11-26 12:02:09,672 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9445727482678984 [2023-11-26 12:02:09,672 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1227 transitions. [2023-11-26 12:02:09,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1227 transitions. [2023-11-26 12:02:09,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:09,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1227 transitions. [2023-11-26 12:02:09,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:09,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:09,682 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:09,682 INFO L175 Difference]: Start difference. First operand has 332 places, 333 transitions, 767 flow. Second operand 3 states and 1227 transitions. [2023-11-26 12:02:09,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 337 transitions, 836 flow [2023-11-26 12:02:09,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 337 transitions, 832 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:02:09,697 INFO L231 Difference]: Finished difference. Result has 331 places, 332 transitions, 765 flow [2023-11-26 12:02:09,698 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=765, PETRI_PLACES=331, PETRI_TRANSITIONS=332} [2023-11-26 12:02:09,698 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -63 predicate places. [2023-11-26 12:02:09,698 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 332 transitions, 765 flow [2023-11-26 12:02:09,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 403.3333333333333) internal successors, (1210), 3 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:09,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:09,699 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:09,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 12:02:09,700 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread4Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:02:09,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:09,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1480384220, now seen corresponding path program 1 times [2023-11-26 12:02:09,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:09,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113012542] [2023-11-26 12:02:09,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:09,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:09,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:09,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:09,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113012542] [2023-11-26 12:02:09,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113012542] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:09,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:09,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:09,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331941611] [2023-11-26 12:02:09,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:09,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:09,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:09,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:09,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:09,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 401 out of 433 [2023-11-26 12:02:09,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 332 transitions, 765 flow. Second operand has 3 states, 3 states have (on average 404.6666666666667) internal successors, (1214), 3 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:09,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:09,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 401 of 433 [2023-11-26 12:02:09,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:12,666 INFO L124 PetriNetUnfolderBase]: 2711/13679 cut-off events. [2023-11-26 12:02:12,666 INFO L125 PetriNetUnfolderBase]: For 759/800 co-relation queries the response was YES. [2023-11-26 12:02:12,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19935 conditions, 13679 events. 2711/13679 cut-off events. For 759/800 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 166579 event pairs, 937 based on Foata normal form. 0/12073 useless extension candidates. Maximal degree in co-relation 18739. Up to 2226 conditions per place. [2023-11-26 12:02:12,916 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 24 selfloop transitions, 2 changer transitions 0/336 dead transitions. [2023-11-26 12:02:12,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 336 transitions, 830 flow [2023-11-26 12:02:12,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:12,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:12,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1229 transitions. [2023-11-26 12:02:12,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9461123941493457 [2023-11-26 12:02:12,921 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1229 transitions. [2023-11-26 12:02:12,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1229 transitions. [2023-11-26 12:02:12,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:12,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1229 transitions. [2023-11-26 12:02:12,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 409.6666666666667) internal successors, (1229), 3 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:12,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:12,930 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:12,930 INFO L175 Difference]: Start difference. First operand has 331 places, 332 transitions, 765 flow. Second operand 3 states and 1229 transitions. [2023-11-26 12:02:12,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 336 transitions, 830 flow [2023-11-26 12:02:12,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 336 transitions, 826 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:02:12,947 INFO L231 Difference]: Finished difference. Result has 330 places, 331 transitions, 763 flow [2023-11-26 12:02:12,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=759, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=763, PETRI_PLACES=330, PETRI_TRANSITIONS=331} [2023-11-26 12:02:12,948 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -64 predicate places. [2023-11-26 12:02:12,948 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 331 transitions, 763 flow [2023-11-26 12:02:12,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 404.6666666666667) internal successors, (1214), 3 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:12,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:12,949 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:12,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 12:02:12,950 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:02:12,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:12,950 INFO L85 PathProgramCache]: Analyzing trace with hash -675761760, now seen corresponding path program 1 times [2023-11-26 12:02:12,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:12,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326118163] [2023-11-26 12:02:12,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:12,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:14,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:14,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:14,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326118163] [2023-11-26 12:02:14,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326118163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:14,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:14,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:02:14,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682670214] [2023-11-26 12:02:14,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:14,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:02:14,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:14,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:02:14,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:02:14,515 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 433 [2023-11-26 12:02:14,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 331 transitions, 763 flow. Second operand has 6 states, 6 states have (on average 404.1666666666667) internal successors, (2425), 6 states have internal predecessors, (2425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:14,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:14,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 433 [2023-11-26 12:02:14,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:15,948 INFO L124 PetriNetUnfolderBase]: 1050/6716 cut-off events. [2023-11-26 12:02:15,949 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2023-11-26 12:02:16,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8946 conditions, 6716 events. 1050/6716 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 70012 event pairs, 188 based on Foata normal form. 0/5927 useless extension candidates. Maximal degree in co-relation 8258. Up to 1280 conditions per place. [2023-11-26 12:02:16,112 INFO L140 encePairwiseOnDemand]: 428/433 looper letters, 14 selfloop transitions, 4 changer transitions 0/330 dead transitions. [2023-11-26 12:02:16,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 330 transitions, 797 flow [2023-11-26 12:02:16,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:02:16,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:02:16,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2431 transitions. [2023-11-26 12:02:16,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9357197844495766 [2023-11-26 12:02:16,122 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2431 transitions. [2023-11-26 12:02:16,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2431 transitions. [2023-11-26 12:02:16,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:16,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2431 transitions. [2023-11-26 12:02:16,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 405.1666666666667) internal successors, (2431), 6 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:16,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 433.0) internal successors, (3031), 7 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:16,145 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 433.0) internal successors, (3031), 7 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:16,146 INFO L175 Difference]: Start difference. First operand has 330 places, 331 transitions, 763 flow. Second operand 6 states and 2431 transitions. [2023-11-26 12:02:16,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 330 transitions, 797 flow [2023-11-26 12:02:16,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 330 transitions, 793 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:02:16,159 INFO L231 Difference]: Finished difference. Result has 332 places, 330 transitions, 765 flow [2023-11-26 12:02:16,159 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=765, PETRI_PLACES=332, PETRI_TRANSITIONS=330} [2023-11-26 12:02:16,160 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -62 predicate places. [2023-11-26 12:02:16,160 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 330 transitions, 765 flow [2023-11-26 12:02:16,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 404.1666666666667) internal successors, (2425), 6 states have internal predecessors, (2425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:16,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:16,161 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:16,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-26 12:02:16,162 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread5Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:02:16,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:16,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1144326919, now seen corresponding path program 1 times [2023-11-26 12:02:16,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:16,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305730853] [2023-11-26 12:02:16,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:16,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:16,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:16,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:16,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305730853] [2023-11-26 12:02:16,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305730853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:16,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:16,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:16,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140294648] [2023-11-26 12:02:16,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:16,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:16,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:16,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:16,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:16,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 433 [2023-11-26 12:02:16,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 330 transitions, 765 flow. Second operand has 3 states, 3 states have (on average 404.0) internal successors, (1212), 3 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:16,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:16,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 433 [2023-11-26 12:02:16,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:18,467 INFO L124 PetriNetUnfolderBase]: 2159/11245 cut-off events. [2023-11-26 12:02:18,467 INFO L125 PetriNetUnfolderBase]: For 609/642 co-relation queries the response was YES. [2023-11-26 12:02:18,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16117 conditions, 11245 events. 2159/11245 cut-off events. For 609/642 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 129737 event pairs, 749 based on Foata normal form. 0/9984 useless extension candidates. Maximal degree in co-relation 10918. Up to 1912 conditions per place. [2023-11-26 12:02:18,677 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 26 selfloop transitions, 2 changer transitions 0/334 dead transitions. [2023-11-26 12:02:18,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 334 transitions, 834 flow [2023-11-26 12:02:18,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:18,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:18,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1227 transitions. [2023-11-26 12:02:18,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9445727482678984 [2023-11-26 12:02:18,681 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1227 transitions. [2023-11-26 12:02:18,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1227 transitions. [2023-11-26 12:02:18,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:18,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1227 transitions. [2023-11-26 12:02:18,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 409.0) internal successors, (1227), 3 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:18,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:18,689 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:18,690 INFO L175 Difference]: Start difference. First operand has 332 places, 330 transitions, 765 flow. Second operand 3 states and 1227 transitions. [2023-11-26 12:02:18,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 334 transitions, 834 flow [2023-11-26 12:02:18,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 334 transitions, 827 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 12:02:18,701 INFO L231 Difference]: Finished difference. Result has 329 places, 329 transitions, 760 flow [2023-11-26 12:02:18,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=760, PETRI_PLACES=329, PETRI_TRANSITIONS=329} [2023-11-26 12:02:18,702 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -65 predicate places. [2023-11-26 12:02:18,702 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 329 transitions, 760 flow [2023-11-26 12:02:18,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 404.0) internal successors, (1212), 3 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:18,703 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:18,703 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:18,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-26 12:02:18,704 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread6Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:02:18,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:18,704 INFO L85 PathProgramCache]: Analyzing trace with hash 442954409, now seen corresponding path program 1 times [2023-11-26 12:02:18,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:18,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711521871] [2023-11-26 12:02:18,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:18,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:18,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:18,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:18,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711521871] [2023-11-26 12:02:18,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711521871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:18,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:18,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:18,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410927181] [2023-11-26 12:02:18,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:18,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:18,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:18,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:18,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:18,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 401 out of 433 [2023-11-26 12:02:18,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 329 transitions, 760 flow. Second operand has 3 states, 3 states have (on average 405.3333333333333) internal successors, (1216), 3 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:18,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:18,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 401 of 433 [2023-11-26 12:02:18,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:20,622 INFO L124 PetriNetUnfolderBase]: 1557/8529 cut-off events. [2023-11-26 12:02:20,623 INFO L125 PetriNetUnfolderBase]: For 449/476 co-relation queries the response was YES. [2023-11-26 12:02:20,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11977 conditions, 8529 events. 1557/8529 cut-off events. For 449/476 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 91314 event pairs, 479 based on Foata normal form. 0/7584 useless extension candidates. Maximal degree in co-relation 11095. Up to 1561 conditions per place. [2023-11-26 12:02:20,750 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 24 selfloop transitions, 2 changer transitions 0/333 dead transitions. [2023-11-26 12:02:20,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 333 transitions, 825 flow [2023-11-26 12:02:20,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:20,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:20,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1229 transitions. [2023-11-26 12:02:20,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9461123941493457 [2023-11-26 12:02:20,755 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1229 transitions. [2023-11-26 12:02:20,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1229 transitions. [2023-11-26 12:02:20,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:20,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1229 transitions. [2023-11-26 12:02:20,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 409.6666666666667) internal successors, (1229), 3 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:20,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:20,762 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 433.0) internal successors, (1732), 4 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:20,762 INFO L175 Difference]: Start difference. First operand has 329 places, 329 transitions, 760 flow. Second operand 3 states and 1229 transitions. [2023-11-26 12:02:20,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 333 transitions, 825 flow [2023-11-26 12:02:20,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 333 transitions, 821 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:02:20,776 INFO L231 Difference]: Finished difference. Result has 328 places, 328 transitions, 758 flow [2023-11-26 12:02:20,776 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=758, PETRI_PLACES=328, PETRI_TRANSITIONS=328} [2023-11-26 12:02:20,777 INFO L281 CegarLoopForPetriNet]: 394 programPoint places, -66 predicate places. [2023-11-26 12:02:20,777 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 328 transitions, 758 flow [2023-11-26 12:02:20,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 405.3333333333333) internal successors, (1216), 3 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:20,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:20,778 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:20,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-26 12:02:20,778 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2023-11-26 12:02:20,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:20,779 INFO L85 PathProgramCache]: Analyzing trace with hash -874065746, now seen corresponding path program 1 times [2023-11-26 12:02:20,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:20,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93188258] [2023-11-26 12:02:20,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:20,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat