./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 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_6e33a4b5-16bc-4824-995b-b8f916155be8/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e33a4b5-16bc-4824-995b-b8f916155be8/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e33a4b5-16bc-4824-995b-b8f916155be8/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e33a4b5-16bc-4824-995b-b8f916155be8/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e33a4b5-16bc-4824-995b-b8f916155be8/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e33a4b5-16bc-4824-995b-b8f916155be8/bin/uautomizer-verify-zZY32mL2XJ --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 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:42:49,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:42:49,548 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e33a4b5-16bc-4824-995b-b8f916155be8/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 22:42:49,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:42:49,554 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:42:49,582 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:42:49,582 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:42:49,583 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:42:49,584 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:42:49,585 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:42:49,585 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:42:49,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:42:49,587 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:42:49,587 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:42:49,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:42:49,588 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:42:49,589 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:42:49,590 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:42:49,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:42:49,591 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:42:49,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:42:49,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:42:49,601 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 22:42:49,602 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:42:49,603 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:42:49,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:42:49,604 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:42:49,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:42:49,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:42:49,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:42:49,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:42:49,607 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:42:49,607 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:42:49,608 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:42:49,608 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:42:49,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:42:49,608 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:42:49,609 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:42:49,609 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:42:49,609 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:42:49,609 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:42:49,610 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_6e33a4b5-16bc-4824-995b-b8f916155be8/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e33a4b5-16bc-4824-995b-b8f916155be8/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 [2023-11-23 22:42:49,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:42:50,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:42:50,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:42:50,009 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:42:50,010 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:42:50,011 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e33a4b5-16bc-4824-995b-b8f916155be8/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2023-11-23 22:42:53,185 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:42:53,521 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:42:53,522 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e33a4b5-16bc-4824-995b-b8f916155be8/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2023-11-23 22:42:53,533 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e33a4b5-16bc-4824-995b-b8f916155be8/bin/uautomizer-verify-zZY32mL2XJ/data/1ae138dd5/d9fef667b50641489e11470ebe8479b5/FLAG449e46ee2 [2023-11-23 22:42:53,837 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e33a4b5-16bc-4824-995b-b8f916155be8/bin/uautomizer-verify-zZY32mL2XJ/data/1ae138dd5/d9fef667b50641489e11470ebe8479b5 [2023-11-23 22:42:53,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:42:53,841 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:42:53,843 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:42:53,843 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:42:53,851 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:42:53,852 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:42:53" (1/1) ... [2023-11-23 22:42:53,853 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@490ce1c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:53, skipping insertion in model container [2023-11-23 22:42:53,853 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:42:53" (1/1) ... [2023-11-23 22:42:53,883 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:42:54,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:42:54,154 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:42:54,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:42:54,246 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:42:54,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:54 WrapperNode [2023-11-23 22:42:54,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:42:54,248 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:42:54,248 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:42:54,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:42:54,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:54" (1/1) ... [2023-11-23 22:42:54,276 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:54" (1/1) ... [2023-11-23 22:42:54,349 INFO L138 Inliner]: procedures = 27, calls = 67, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 827 [2023-11-23 22:42:54,350 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:42:54,351 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:42:54,351 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:42:54,351 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:42:54,362 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:54" (1/1) ... [2023-11-23 22:42:54,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:54" (1/1) ... [2023-11-23 22:42:54,374 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:54" (1/1) ... [2023-11-23 22:42:54,375 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:54" (1/1) ... [2023-11-23 22:42:54,413 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:54" (1/1) ... [2023-11-23 22:42:54,423 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:54" (1/1) ... [2023-11-23 22:42:54,429 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:54" (1/1) ... [2023-11-23 22:42:54,452 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:54" (1/1) ... [2023-11-23 22:42:54,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:42:54,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:42:54,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:42:54,462 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:42:54,463 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:54" (1/1) ... [2023-11-23 22:42:54,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:42:54,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e33a4b5-16bc-4824-995b-b8f916155be8/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:42:54,506 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e33a4b5-16bc-4824-995b-b8f916155be8/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:42:54,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e33a4b5-16bc-4824-995b-b8f916155be8/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:42:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:42:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:42:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 22:42:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 22:42:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 22:42:54,555 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 22:42:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 22:42:54,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 22:42:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-23 22:42:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-23 22:42:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 22:42:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:42:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:42:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:42:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:42:54,562 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 22:42:54,780 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:42:54,786 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:42:56,365 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:42:56,392 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:42:56,393 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-23 22:42:56,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:42:56 BoogieIcfgContainer [2023-11-23 22:42:56,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:42:56,398 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:42:56,399 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:42:56,402 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:42:56,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:42:53" (1/3) ... [2023-11-23 22:42:56,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746ce4a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:42:56, skipping insertion in model container [2023-11-23 22:42:56,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:42:54" (2/3) ... [2023-11-23 22:42:56,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746ce4a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:42:56, skipping insertion in model container [2023-11-23 22:42:56,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:42:56" (3/3) ... [2023-11-23 22:42:56,405 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2023-11-23 22:42:56,415 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:42:56,427 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:42:56,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 119 error locations. [2023-11-23 22:42:56,428 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:42:56,688 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-23 22:42:56,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1043 places, 1081 transitions, 2183 flow [2023-11-23 22:42:57,395 INFO L124 PetriNetUnfolderBase]: 48/1078 cut-off events. [2023-11-23 22:42:57,396 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-23 22:42:57,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 1078 events. 48/1078 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2239 event pairs, 0 based on Foata normal form. 0/911 useless extension candidates. Maximal degree in co-relation 852. Up to 2 conditions per place. [2023-11-23 22:42:57,430 INFO L82 GeneralOperation]: Start removeDead. Operand has 1043 places, 1081 transitions, 2183 flow [2023-11-23 22:42:57,459 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1014 places, 1049 transitions, 2116 flow [2023-11-23 22:42:57,475 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:42:57,482 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;@68614914, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:42:57,483 INFO L358 AbstractCegarLoop]: Starting to check reachability of 197 error locations. [2023-11-23 22:42:57,489 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:42:57,490 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2023-11-23 22:42:57,490 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:42:57,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:42:57,491 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:42:57,492 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-23 22:42:57,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:42:57,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1359890543, now seen corresponding path program 1 times [2023-11-23 22:42:57,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:42:57,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160136957] [2023-11-23 22:42:57,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:42:57,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:42:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:57,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:42:57,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:42:57,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160136957] [2023-11-23 22:42:57,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160136957] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:42:57,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:42:57,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:42:57,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520065279] [2023-11-23 22:42:57,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:42:57,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:42:57,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:42:57,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:42:57,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:42:57,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1028 out of 1081 [2023-11-23 22:42:57,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1014 places, 1049 transitions, 2116 flow. Second operand has 3 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:42:57,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:42:57,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1028 of 1081 [2023-11-23 22:42:57,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:42:59,246 INFO L124 PetriNetUnfolderBase]: 86/2529 cut-off events. [2023-11-23 22:42:59,247 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-11-23 22:42:59,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2672 conditions, 2529 events. 86/2529 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 14487 event pairs, 39 based on Foata normal form. 70/2145 useless extension candidates. Maximal degree in co-relation 1944. Up to 89 conditions per place. [2023-11-23 22:42:59,339 INFO L140 encePairwiseOnDemand]: 1050/1081 looper letters, 19 selfloop transitions, 2 changer transitions 16/1020 dead transitions. [2023-11-23 22:42:59,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1015 places, 1020 transitions, 2100 flow [2023-11-23 22:42:59,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:42:59,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:42:59,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3134 transitions. [2023-11-23 22:42:59,374 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9663891458526056 [2023-11-23 22:42:59,375 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3134 transitions. [2023-11-23 22:42:59,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3134 transitions. [2023-11-23 22:42:59,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:42:59,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3134 transitions. [2023-11-23 22:42:59,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1044.6666666666667) internal successors, (3134), 3 states have internal predecessors, (3134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:42:59,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:42:59,421 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:42:59,424 INFO L175 Difference]: Start difference. First operand has 1014 places, 1049 transitions, 2116 flow. Second operand 3 states and 3134 transitions. [2023-11-23 22:42:59,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1015 places, 1020 transitions, 2100 flow [2023-11-23 22:42:59,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1009 places, 1020 transitions, 2088 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-23 22:42:59,465 INFO L231 Difference]: Finished difference. Result has 1009 places, 1004 transitions, 2018 flow [2023-11-23 22:42:59,469 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=2046, PETRI_DIFFERENCE_MINUEND_PLACES=1007, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1020, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1018, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2018, PETRI_PLACES=1009, PETRI_TRANSITIONS=1004} [2023-11-23 22:42:59,474 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -5 predicate places. [2023-11-23 22:42:59,475 INFO L495 AbstractCegarLoop]: Abstraction has has 1009 places, 1004 transitions, 2018 flow [2023-11-23 22:42:59,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:42:59,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:42:59,479 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] [2023-11-23 22:42:59,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:42:59,479 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-23 22:42:59,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:42:59,481 INFO L85 PathProgramCache]: Analyzing trace with hash -328154300, now seen corresponding path program 1 times [2023-11-23 22:42:59,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:42:59,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829006424] [2023-11-23 22:42:59,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:42:59,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:42:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:42:59,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:42:59,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:42:59,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829006424] [2023-11-23 22:42:59,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829006424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:42:59,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:42:59,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:42:59,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751235533] [2023-11-23 22:42:59,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:42:59,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:42:59,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:42:59,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:42:59,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:42:59,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1014 out of 1081 [2023-11-23 22:42:59,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1009 places, 1004 transitions, 2018 flow. Second operand has 3 states, 3 states have (on average 1015.0) internal successors, (3045), 3 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:42:59,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:42:59,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1014 of 1081 [2023-11-23 22:42:59,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:01,597 INFO L124 PetriNetUnfolderBase]: 212/4005 cut-off events. [2023-11-23 22:43:01,598 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-23 22:43:01,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4325 conditions, 4005 events. 212/4005 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 30022 event pairs, 132 based on Foata normal form. 0/3358 useless extension candidates. Maximal degree in co-relation 4282. Up to 257 conditions per place. [2023-11-23 22:43:01,729 INFO L140 encePairwiseOnDemand]: 1070/1081 looper letters, 26 selfloop transitions, 1 changer transitions 0/994 dead transitions. [2023-11-23 22:43:01,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 985 places, 994 transitions, 2052 flow [2023-11-23 22:43:01,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:01,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:01,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3079 transitions. [2023-11-23 22:43:01,740 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9494295405488745 [2023-11-23 22:43:01,740 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3079 transitions. [2023-11-23 22:43:01,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3079 transitions. [2023-11-23 22:43:01,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:01,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3079 transitions. [2023-11-23 22:43:01,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1026.3333333333333) internal successors, (3079), 3 states have internal predecessors, (3079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:01,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:01,768 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:01,768 INFO L175 Difference]: Start difference. First operand has 1009 places, 1004 transitions, 2018 flow. Second operand 3 states and 3079 transitions. [2023-11-23 22:43:01,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 985 places, 994 transitions, 2052 flow [2023-11-23 22:43:01,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 983 places, 994 transitions, 2048 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:43:01,793 INFO L231 Difference]: Finished difference. Result has 983 places, 994 transitions, 1996 flow [2023-11-23 22:43:01,796 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1994, PETRI_DIFFERENCE_MINUEND_PLACES=981, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=994, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=993, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1996, PETRI_PLACES=983, PETRI_TRANSITIONS=994} [2023-11-23 22:43:01,797 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -31 predicate places. [2023-11-23 22:43:01,797 INFO L495 AbstractCegarLoop]: Abstraction has has 983 places, 994 transitions, 1996 flow [2023-11-23 22:43:01,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1015.0) internal successors, (3045), 3 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:01,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:01,801 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:01,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:43:01,801 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-23 22:43:01,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:01,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1092830789, now seen corresponding path program 1 times [2023-11-23 22:43:01,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:01,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019667584] [2023-11-23 22:43:01,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:01,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:01,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:01,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:01,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019667584] [2023-11-23 22:43:01,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019667584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:01,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:01,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:01,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217351812] [2023-11-23 22:43:01,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:01,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:01,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:01,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:01,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:01,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1028 out of 1081 [2023-11-23 22:43:01,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 983 places, 994 transitions, 1996 flow. Second operand has 3 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:01,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:01,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1028 of 1081 [2023-11-23 22:43:01,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:03,151 INFO L124 PetriNetUnfolderBase]: 62/2253 cut-off events. [2023-11-23 22:43:03,152 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2023-11-23 22:43:03,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2329 conditions, 2253 events. 62/2253 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 11422 event pairs, 21 based on Foata normal form. 0/1881 useless extension candidates. Maximal degree in co-relation 2286. Up to 62 conditions per place. [2023-11-23 22:43:03,209 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 19 selfloop transitions, 2 changer transitions 0/993 dead transitions. [2023-11-23 22:43:03,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 984 places, 993 transitions, 2036 flow [2023-11-23 22:43:03,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:03,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:03,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3106 transitions. [2023-11-23 22:43:03,220 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9577551649707061 [2023-11-23 22:43:03,220 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3106 transitions. [2023-11-23 22:43:03,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3106 transitions. [2023-11-23 22:43:03,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:03,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3106 transitions. [2023-11-23 22:43:03,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1035.3333333333333) internal successors, (3106), 3 states have internal predecessors, (3106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:03,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:03,247 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:03,247 INFO L175 Difference]: Start difference. First operand has 983 places, 994 transitions, 1996 flow. Second operand 3 states and 3106 transitions. [2023-11-23 22:43:03,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 984 places, 993 transitions, 2036 flow [2023-11-23 22:43:03,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 983 places, 993 transitions, 2035 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:43:03,271 INFO L231 Difference]: Finished difference. Result has 983 places, 993 transitions, 1997 flow [2023-11-23 22:43:03,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1993, PETRI_DIFFERENCE_MINUEND_PLACES=981, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=993, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=991, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1997, PETRI_PLACES=983, PETRI_TRANSITIONS=993} [2023-11-23 22:43:03,275 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -31 predicate places. [2023-11-23 22:43:03,275 INFO L495 AbstractCegarLoop]: Abstraction has has 983 places, 993 transitions, 1997 flow [2023-11-23 22:43:03,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:03,278 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:03,278 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] [2023-11-23 22:43:03,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:43:03,280 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-23 22:43:03,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:03,281 INFO L85 PathProgramCache]: Analyzing trace with hash -659403950, now seen corresponding path program 1 times [2023-11-23 22:43:03,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:03,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558882813] [2023-11-23 22:43:03,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:03,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:03,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:03,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:03,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558882813] [2023-11-23 22:43:03,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558882813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:03,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:03,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:03,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764877256] [2023-11-23 22:43:03,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:03,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:03,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:03,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:03,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:03,435 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1014 out of 1081 [2023-11-23 22:43:03,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 983 places, 993 transitions, 1997 flow. Second operand has 3 states, 3 states have (on average 1015.0) internal successors, (3045), 3 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:03,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:03,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1014 of 1081 [2023-11-23 22:43:03,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:04,588 INFO L124 PetriNetUnfolderBase]: 119/2801 cut-off events. [2023-11-23 22:43:04,589 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-23 22:43:04,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2972 conditions, 2801 events. 119/2801 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 16637 event pairs, 60 based on Foata normal form. 0/2371 useless extension candidates. Maximal degree in co-relation 2930. Up to 149 conditions per place. [2023-11-23 22:43:04,703 INFO L140 encePairwiseOnDemand]: 1070/1081 looper letters, 26 selfloop transitions, 1 changer transitions 0/983 dead transitions. [2023-11-23 22:43:04,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 975 places, 983 transitions, 2031 flow [2023-11-23 22:43:04,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:04,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:04,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3079 transitions. [2023-11-23 22:43:04,713 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9494295405488745 [2023-11-23 22:43:04,713 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3079 transitions. [2023-11-23 22:43:04,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3079 transitions. [2023-11-23 22:43:04,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:04,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3079 transitions. [2023-11-23 22:43:04,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1026.3333333333333) internal successors, (3079), 3 states have internal predecessors, (3079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:04,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:04,755 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:04,755 INFO L175 Difference]: Start difference. First operand has 983 places, 993 transitions, 1997 flow. Second operand 3 states and 3079 transitions. [2023-11-23 22:43:04,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 975 places, 983 transitions, 2031 flow [2023-11-23 22:43:04,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 973 places, 983 transitions, 2027 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:43:04,776 INFO L231 Difference]: Finished difference. Result has 973 places, 983 transitions, 1975 flow [2023-11-23 22:43:04,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1973, PETRI_DIFFERENCE_MINUEND_PLACES=971, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=983, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=982, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1975, PETRI_PLACES=973, PETRI_TRANSITIONS=983} [2023-11-23 22:43:04,781 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -41 predicate places. [2023-11-23 22:43:04,781 INFO L495 AbstractCegarLoop]: Abstraction has has 973 places, 983 transitions, 1975 flow [2023-11-23 22:43:04,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1015.0) internal successors, (3045), 3 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:04,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:04,783 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:04,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:43:04,783 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-23 22:43:04,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:04,784 INFO L85 PathProgramCache]: Analyzing trace with hash -675579994, now seen corresponding path program 1 times [2023-11-23 22:43:04,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:04,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500693605] [2023-11-23 22:43:04,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:04,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:04,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:04,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:04,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500693605] [2023-11-23 22:43:04,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500693605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:04,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:04,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:04,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886671795] [2023-11-23 22:43:04,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:04,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:04,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:04,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:04,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:04,942 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1028 out of 1081 [2023-11-23 22:43:04,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 973 places, 983 transitions, 1975 flow. Second operand has 3 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:04,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:04,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1028 of 1081 [2023-11-23 22:43:04,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:05,769 INFO L124 PetriNetUnfolderBase]: 74/1951 cut-off events. [2023-11-23 22:43:05,770 INFO L125 PetriNetUnfolderBase]: For 21/38 co-relation queries the response was YES. [2023-11-23 22:43:05,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2052 conditions, 1951 events. 74/1951 cut-off events. For 21/38 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9258 event pairs, 39 based on Foata normal form. 0/1663 useless extension candidates. Maximal degree in co-relation 2009. Up to 89 conditions per place. [2023-11-23 22:43:05,842 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 19 selfloop transitions, 2 changer transitions 0/982 dead transitions. [2023-11-23 22:43:05,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 974 places, 982 transitions, 2015 flow [2023-11-23 22:43:05,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:05,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:05,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3106 transitions. [2023-11-23 22:43:05,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9577551649707061 [2023-11-23 22:43:05,853 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3106 transitions. [2023-11-23 22:43:05,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3106 transitions. [2023-11-23 22:43:05,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:05,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3106 transitions. [2023-11-23 22:43:05,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1035.3333333333333) internal successors, (3106), 3 states have internal predecessors, (3106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:05,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:05,929 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:05,930 INFO L175 Difference]: Start difference. First operand has 973 places, 983 transitions, 1975 flow. Second operand 3 states and 3106 transitions. [2023-11-23 22:43:05,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 974 places, 982 transitions, 2015 flow [2023-11-23 22:43:05,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 973 places, 982 transitions, 2014 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:43:05,957 INFO L231 Difference]: Finished difference. Result has 973 places, 982 transitions, 1976 flow [2023-11-23 22:43:05,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1972, PETRI_DIFFERENCE_MINUEND_PLACES=971, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=982, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=980, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1976, PETRI_PLACES=973, PETRI_TRANSITIONS=982} [2023-11-23 22:43:05,963 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -41 predicate places. [2023-11-23 22:43:05,963 INFO L495 AbstractCegarLoop]: Abstraction has has 973 places, 982 transitions, 1976 flow [2023-11-23 22:43:05,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:05,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:05,965 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] [2023-11-23 22:43:05,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:43:05,966 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-23 22:43:05,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:05,967 INFO L85 PathProgramCache]: Analyzing trace with hash 461443122, now seen corresponding path program 1 times [2023-11-23 22:43:05,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:05,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678208533] [2023-11-23 22:43:05,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:05,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:06,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:06,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:06,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678208533] [2023-11-23 22:43:06,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678208533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:06,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:06,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:06,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134906398] [2023-11-23 22:43:06,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:06,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:06,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:06,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:06,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:06,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1014 out of 1081 [2023-11-23 22:43:06,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 973 places, 982 transitions, 1976 flow. Second operand has 3 states, 3 states have (on average 1015.0) internal successors, (3045), 3 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:06,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:06,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1014 of 1081 [2023-11-23 22:43:06,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:07,744 INFO L124 PetriNetUnfolderBase]: 226/3743 cut-off events. [2023-11-23 22:43:07,744 INFO L125 PetriNetUnfolderBase]: For 65/94 co-relation queries the response was YES. [2023-11-23 22:43:07,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4034 conditions, 3743 events. 226/3743 cut-off events. For 65/94 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 27051 event pairs, 132 based on Foata normal form. 0/3189 useless extension candidates. Maximal degree in co-relation 3992. Up to 274 conditions per place. [2023-11-23 22:43:07,835 INFO L140 encePairwiseOnDemand]: 1070/1081 looper letters, 26 selfloop transitions, 1 changer transitions 0/972 dead transitions. [2023-11-23 22:43:07,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 965 places, 972 transitions, 2010 flow [2023-11-23 22:43:07,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:07,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:07,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3079 transitions. [2023-11-23 22:43:07,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9494295405488745 [2023-11-23 22:43:07,847 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3079 transitions. [2023-11-23 22:43:07,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3079 transitions. [2023-11-23 22:43:07,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:07,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3079 transitions. [2023-11-23 22:43:07,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1026.3333333333333) internal successors, (3079), 3 states have internal predecessors, (3079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:07,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:07,869 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:07,869 INFO L175 Difference]: Start difference. First operand has 973 places, 982 transitions, 1976 flow. Second operand 3 states and 3079 transitions. [2023-11-23 22:43:07,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 965 places, 972 transitions, 2010 flow [2023-11-23 22:43:07,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 963 places, 972 transitions, 2006 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:43:07,892 INFO L231 Difference]: Finished difference. Result has 963 places, 972 transitions, 1954 flow [2023-11-23 22:43:07,895 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1952, PETRI_DIFFERENCE_MINUEND_PLACES=961, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=972, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=971, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1954, PETRI_PLACES=963, PETRI_TRANSITIONS=972} [2023-11-23 22:43:07,896 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -51 predicate places. [2023-11-23 22:43:07,896 INFO L495 AbstractCegarLoop]: Abstraction has has 963 places, 972 transitions, 1954 flow [2023-11-23 22:43:07,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1015.0) internal successors, (3045), 3 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:07,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:07,898 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:07,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:43:07,898 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-23 22:43:07,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:07,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1079269308, now seen corresponding path program 1 times [2023-11-23 22:43:07,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:07,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370346618] [2023-11-23 22:43:07,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:07,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:07,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:07,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:07,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370346618] [2023-11-23 22:43:07,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370346618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:07,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:07,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:07,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989024711] [2023-11-23 22:43:07,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:07,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:07,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:07,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:07,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:07,984 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1036 out of 1081 [2023-11-23 22:43:07,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 963 places, 972 transitions, 1954 flow. Second operand has 3 states, 3 states have (on average 1037.3333333333333) internal successors, (3112), 3 states have internal predecessors, (3112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:07,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:07,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1036 of 1081 [2023-11-23 22:43:07,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:08,472 INFO L124 PetriNetUnfolderBase]: 25/1279 cut-off events. [2023-11-23 22:43:08,473 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-23 22:43:08,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1307 conditions, 1279 events. 25/1279 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3425 event pairs, 2 based on Foata normal form. 0/1121 useless extension candidates. Maximal degree in co-relation 1264. Up to 16 conditions per place. [2023-11-23 22:43:08,505 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 11 selfloop transitions, 2 changer transitions 0/971 dead transitions. [2023-11-23 22:43:08,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 964 places, 971 transitions, 1978 flow [2023-11-23 22:43:08,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:08,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:08,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3122 transitions. [2023-11-23 22:43:08,526 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9626888683317916 [2023-11-23 22:43:08,526 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3122 transitions. [2023-11-23 22:43:08,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3122 transitions. [2023-11-23 22:43:08,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:08,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3122 transitions. [2023-11-23 22:43:08,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.6666666666667) internal successors, (3122), 3 states have internal predecessors, (3122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:08,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:08,559 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:08,560 INFO L175 Difference]: Start difference. First operand has 963 places, 972 transitions, 1954 flow. Second operand 3 states and 3122 transitions. [2023-11-23 22:43:08,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 964 places, 971 transitions, 1978 flow [2023-11-23 22:43:08,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 963 places, 971 transitions, 1977 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:43:08,587 INFO L231 Difference]: Finished difference. Result has 963 places, 971 transitions, 1955 flow [2023-11-23 22:43:08,592 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1951, PETRI_DIFFERENCE_MINUEND_PLACES=961, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=971, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=969, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1955, PETRI_PLACES=963, PETRI_TRANSITIONS=971} [2023-11-23 22:43:08,592 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -51 predicate places. [2023-11-23 22:43:08,593 INFO L495 AbstractCegarLoop]: Abstraction has has 963 places, 971 transitions, 1955 flow [2023-11-23 22:43:08,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1037.3333333333333) internal successors, (3112), 3 states have internal predecessors, (3112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:08,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:08,595 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] [2023-11-23 22:43:08,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 22:43:08,595 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-23 22:43:08,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:08,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1683682130, now seen corresponding path program 1 times [2023-11-23 22:43:08,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:08,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221246560] [2023-11-23 22:43:08,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:08,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:08,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:08,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:08,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221246560] [2023-11-23 22:43:08,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221246560] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:08,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:08,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:08,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990348493] [2023-11-23 22:43:08,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:08,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:08,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:08,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:08,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:08,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1035 out of 1081 [2023-11-23 22:43:08,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 963 places, 971 transitions, 1955 flow. Second operand has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:08,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:08,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1035 of 1081 [2023-11-23 22:43:08,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:09,393 INFO L124 PetriNetUnfolderBase]: 41/1894 cut-off events. [2023-11-23 22:43:09,393 INFO L125 PetriNetUnfolderBase]: For 3/7 co-relation queries the response was YES. [2023-11-23 22:43:09,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1937 conditions, 1894 events. 41/1894 cut-off events. For 3/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 8621 event pairs, 6 based on Foata normal form. 0/1637 useless extension candidates. Maximal degree in co-relation 1894. Up to 25 conditions per place. [2023-11-23 22:43:09,450 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 12 selfloop transitions, 2 changer transitions 0/970 dead transitions. [2023-11-23 22:43:09,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 964 places, 970 transitions, 1981 flow [2023-11-23 22:43:09,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:09,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:09,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3120 transitions. [2023-11-23 22:43:09,462 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620721554116559 [2023-11-23 22:43:09,462 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3120 transitions. [2023-11-23 22:43:09,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3120 transitions. [2023-11-23 22:43:09,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:09,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3120 transitions. [2023-11-23 22:43:09,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:09,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:09,534 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:09,535 INFO L175 Difference]: Start difference. First operand has 963 places, 971 transitions, 1955 flow. Second operand 3 states and 3120 transitions. [2023-11-23 22:43:09,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 964 places, 970 transitions, 1981 flow [2023-11-23 22:43:09,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 962 places, 970 transitions, 1977 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:43:09,557 INFO L231 Difference]: Finished difference. Result has 962 places, 970 transitions, 1953 flow [2023-11-23 22:43:09,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1949, PETRI_DIFFERENCE_MINUEND_PLACES=960, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=970, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=968, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1953, PETRI_PLACES=962, PETRI_TRANSITIONS=970} [2023-11-23 22:43:09,561 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -52 predicate places. [2023-11-23 22:43:09,561 INFO L495 AbstractCegarLoop]: Abstraction has has 962 places, 970 transitions, 1953 flow [2023-11-23 22:43:09,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:09,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:09,563 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] [2023-11-23 22:43:09,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 22:43:09,563 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-23 22:43:09,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:09,564 INFO L85 PathProgramCache]: Analyzing trace with hash -132271162, now seen corresponding path program 1 times [2023-11-23 22:43:09,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:09,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716584181] [2023-11-23 22:43:09,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:09,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:09,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:09,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:09,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716584181] [2023-11-23 22:43:09,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716584181] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:09,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:09,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:09,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274648311] [2023-11-23 22:43:09,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:09,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:09,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:09,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:09,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:09,682 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1035 out of 1081 [2023-11-23 22:43:09,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 962 places, 970 transitions, 1953 flow. Second operand has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:09,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:09,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1035 of 1081 [2023-11-23 22:43:09,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:10,432 INFO L124 PetriNetUnfolderBase]: 41/1893 cut-off events. [2023-11-23 22:43:10,433 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-23 22:43:10,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1936 conditions, 1893 events. 41/1893 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 8625 event pairs, 6 based on Foata normal form. 0/1637 useless extension candidates. Maximal degree in co-relation 1893. Up to 25 conditions per place. [2023-11-23 22:43:10,473 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 12 selfloop transitions, 2 changer transitions 0/969 dead transitions. [2023-11-23 22:43:10,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 963 places, 969 transitions, 1979 flow [2023-11-23 22:43:10,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:10,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:10,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3120 transitions. [2023-11-23 22:43:10,486 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620721554116559 [2023-11-23 22:43:10,486 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3120 transitions. [2023-11-23 22:43:10,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3120 transitions. [2023-11-23 22:43:10,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:10,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3120 transitions. [2023-11-23 22:43:10,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:10,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:10,509 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:10,510 INFO L175 Difference]: Start difference. First operand has 962 places, 970 transitions, 1953 flow. Second operand 3 states and 3120 transitions. [2023-11-23 22:43:10,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 963 places, 969 transitions, 1979 flow [2023-11-23 22:43:10,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 961 places, 969 transitions, 1975 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:43:10,537 INFO L231 Difference]: Finished difference. Result has 961 places, 969 transitions, 1951 flow [2023-11-23 22:43:10,539 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1947, PETRI_DIFFERENCE_MINUEND_PLACES=959, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=969, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=967, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1951, PETRI_PLACES=961, PETRI_TRANSITIONS=969} [2023-11-23 22:43:10,540 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -53 predicate places. [2023-11-23 22:43:10,540 INFO L495 AbstractCegarLoop]: Abstraction has has 961 places, 969 transitions, 1951 flow [2023-11-23 22:43:10,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:10,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:10,542 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] [2023-11-23 22:43:10,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 22:43:10,543 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-23 22:43:10,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:10,543 INFO L85 PathProgramCache]: Analyzing trace with hash 426445876, now seen corresponding path program 1 times [2023-11-23 22:43:10,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:10,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612613309] [2023-11-23 22:43:10,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:10,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:10,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:10,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:10,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612613309] [2023-11-23 22:43:10,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612613309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:10,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:10,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:10,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713292556] [2023-11-23 22:43:10,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:10,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:10,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:10,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:10,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:10,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1035 out of 1081 [2023-11-23 22:43:10,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 961 places, 969 transitions, 1951 flow. Second operand has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:10,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:10,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1035 of 1081 [2023-11-23 22:43:10,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:10,967 INFO L124 PetriNetUnfolderBase]: 22/1134 cut-off events. [2023-11-23 22:43:10,967 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2023-11-23 22:43:10,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1164 conditions, 1134 events. 22/1134 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2649 event pairs, 2 based on Foata normal form. 0/1003 useless extension candidates. Maximal degree in co-relation 1121. Up to 17 conditions per place. [2023-11-23 22:43:10,986 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 12 selfloop transitions, 2 changer transitions 0/968 dead transitions. [2023-11-23 22:43:10,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 962 places, 968 transitions, 1977 flow [2023-11-23 22:43:10,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:10,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:10,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3120 transitions. [2023-11-23 22:43:10,996 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620721554116559 [2023-11-23 22:43:10,997 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3120 transitions. [2023-11-23 22:43:10,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3120 transitions. [2023-11-23 22:43:10,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:11,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3120 transitions. [2023-11-23 22:43:11,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:11,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:11,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:11,018 INFO L175 Difference]: Start difference. First operand has 961 places, 969 transitions, 1951 flow. Second operand 3 states and 3120 transitions. [2023-11-23 22:43:11,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 962 places, 968 transitions, 1977 flow [2023-11-23 22:43:11,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 960 places, 968 transitions, 1973 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:43:11,040 INFO L231 Difference]: Finished difference. Result has 960 places, 968 transitions, 1949 flow [2023-11-23 22:43:11,042 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1945, PETRI_DIFFERENCE_MINUEND_PLACES=958, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=966, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1949, PETRI_PLACES=960, PETRI_TRANSITIONS=968} [2023-11-23 22:43:11,043 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -54 predicate places. [2023-11-23 22:43:11,043 INFO L495 AbstractCegarLoop]: Abstraction has has 960 places, 968 transitions, 1949 flow [2023-11-23 22:43:11,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:11,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:11,045 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] [2023-11-23 22:43:11,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 22:43:11,046 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-23 22:43:11,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:11,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1177395702, now seen corresponding path program 1 times [2023-11-23 22:43:11,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:11,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883008947] [2023-11-23 22:43:11,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:11,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:11,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:11,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:11,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883008947] [2023-11-23 22:43:11,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883008947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:11,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:11,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:11,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093613869] [2023-11-23 22:43:11,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:11,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:11,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:11,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:11,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:11,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1035 out of 1081 [2023-11-23 22:43:11,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 960 places, 968 transitions, 1949 flow. Second operand has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:11,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:11,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1035 of 1081 [2023-11-23 22:43:11,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:11,691 INFO L124 PetriNetUnfolderBase]: 32/1465 cut-off events. [2023-11-23 22:43:11,691 INFO L125 PetriNetUnfolderBase]: For 6/30 co-relation queries the response was YES. [2023-11-23 22:43:11,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1505 conditions, 1465 events. 32/1465 cut-off events. For 6/30 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 5255 event pairs, 6 based on Foata normal form. 0/1280 useless extension candidates. Maximal degree in co-relation 1462. Up to 25 conditions per place. [2023-11-23 22:43:11,714 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 12 selfloop transitions, 2 changer transitions 0/967 dead transitions. [2023-11-23 22:43:11,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 961 places, 967 transitions, 1975 flow [2023-11-23 22:43:11,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:11,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:11,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3120 transitions. [2023-11-23 22:43:11,726 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620721554116559 [2023-11-23 22:43:11,727 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3120 transitions. [2023-11-23 22:43:11,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3120 transitions. [2023-11-23 22:43:11,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:11,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3120 transitions. [2023-11-23 22:43:11,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:11,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:11,746 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:11,746 INFO L175 Difference]: Start difference. First operand has 960 places, 968 transitions, 1949 flow. Second operand 3 states and 3120 transitions. [2023-11-23 22:43:11,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 961 places, 967 transitions, 1975 flow [2023-11-23 22:43:11,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 959 places, 967 transitions, 1971 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:43:11,767 INFO L231 Difference]: Finished difference. Result has 959 places, 967 transitions, 1947 flow [2023-11-23 22:43:11,769 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1943, PETRI_DIFFERENCE_MINUEND_PLACES=957, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=967, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=965, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1947, PETRI_PLACES=959, PETRI_TRANSITIONS=967} [2023-11-23 22:43:11,770 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -55 predicate places. [2023-11-23 22:43:11,770 INFO L495 AbstractCegarLoop]: Abstraction has has 959 places, 967 transitions, 1947 flow [2023-11-23 22:43:11,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:11,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:11,772 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] [2023-11-23 22:43:11,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 22:43:11,772 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-23 22:43:11,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:11,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1430699580, now seen corresponding path program 1 times [2023-11-23 22:43:11,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:11,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034967582] [2023-11-23 22:43:11,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:11,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:11,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:11,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:11,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034967582] [2023-11-23 22:43:11,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034967582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:11,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:11,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:11,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796464551] [2023-11-23 22:43:11,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:11,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:11,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:11,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:11,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:11,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1035 out of 1081 [2023-11-23 22:43:11,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 959 places, 967 transitions, 1947 flow. Second operand has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:11,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:11,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1035 of 1081 [2023-11-23 22:43:11,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:12,440 INFO L124 PetriNetUnfolderBase]: 32/1464 cut-off events. [2023-11-23 22:43:12,441 INFO L125 PetriNetUnfolderBase]: For 6/22 co-relation queries the response was YES. [2023-11-23 22:43:12,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1504 conditions, 1464 events. 32/1464 cut-off events. For 6/22 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 5229 event pairs, 6 based on Foata normal form. 0/1281 useless extension candidates. Maximal degree in co-relation 1461. Up to 25 conditions per place. [2023-11-23 22:43:12,492 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 12 selfloop transitions, 2 changer transitions 0/966 dead transitions. [2023-11-23 22:43:12,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 960 places, 966 transitions, 1973 flow [2023-11-23 22:43:12,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:12,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:12,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3120 transitions. [2023-11-23 22:43:12,503 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620721554116559 [2023-11-23 22:43:12,503 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3120 transitions. [2023-11-23 22:43:12,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3120 transitions. [2023-11-23 22:43:12,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:12,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3120 transitions. [2023-11-23 22:43:12,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:12,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:12,518 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:12,519 INFO L175 Difference]: Start difference. First operand has 959 places, 967 transitions, 1947 flow. Second operand 3 states and 3120 transitions. [2023-11-23 22:43:12,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 960 places, 966 transitions, 1973 flow [2023-11-23 22:43:12,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 958 places, 966 transitions, 1969 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:43:12,542 INFO L231 Difference]: Finished difference. Result has 958 places, 966 transitions, 1945 flow [2023-11-23 22:43:12,544 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1941, PETRI_DIFFERENCE_MINUEND_PLACES=956, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=966, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=964, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1945, PETRI_PLACES=958, PETRI_TRANSITIONS=966} [2023-11-23 22:43:12,546 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -56 predicate places. [2023-11-23 22:43:12,546 INFO L495 AbstractCegarLoop]: Abstraction has has 958 places, 966 transitions, 1945 flow [2023-11-23 22:43:12,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:12,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:12,548 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] [2023-11-23 22:43:12,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 22:43:12,548 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-23 22:43:12,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:12,549 INFO L85 PathProgramCache]: Analyzing trace with hash 40966072, now seen corresponding path program 1 times [2023-11-23 22:43:12,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:12,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789332146] [2023-11-23 22:43:12,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:12,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:12,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:12,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:12,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789332146] [2023-11-23 22:43:12,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789332146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:12,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:12,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:12,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658382347] [2023-11-23 22:43:12,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:12,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:12,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:12,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:12,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:12,646 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1035 out of 1081 [2023-11-23 22:43:12,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 958 places, 966 transitions, 1945 flow. Second operand has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:12,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:12,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1035 of 1081 [2023-11-23 22:43:12,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:12,977 INFO L124 PetriNetUnfolderBase]: 19/995 cut-off events. [2023-11-23 22:43:12,977 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-11-23 22:43:12,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1024 conditions, 995 events. 19/995 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2117 event pairs, 2 based on Foata normal form. 0/892 useless extension candidates. Maximal degree in co-relation 981. Up to 17 conditions per place. [2023-11-23 22:43:13,000 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 12 selfloop transitions, 2 changer transitions 0/965 dead transitions. [2023-11-23 22:43:13,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 965 transitions, 1971 flow [2023-11-23 22:43:13,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:13,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:13,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3120 transitions. [2023-11-23 22:43:13,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620721554116559 [2023-11-23 22:43:13,011 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3120 transitions. [2023-11-23 22:43:13,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3120 transitions. [2023-11-23 22:43:13,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:13,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3120 transitions. [2023-11-23 22:43:13,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:13,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:13,026 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:13,026 INFO L175 Difference]: Start difference. First operand has 958 places, 966 transitions, 1945 flow. Second operand 3 states and 3120 transitions. [2023-11-23 22:43:13,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 959 places, 965 transitions, 1971 flow [2023-11-23 22:43:13,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 957 places, 965 transitions, 1967 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:43:13,049 INFO L231 Difference]: Finished difference. Result has 957 places, 965 transitions, 1943 flow [2023-11-23 22:43:13,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1939, PETRI_DIFFERENCE_MINUEND_PLACES=955, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=965, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=963, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1943, PETRI_PLACES=957, PETRI_TRANSITIONS=965} [2023-11-23 22:43:13,052 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -57 predicate places. [2023-11-23 22:43:13,052 INFO L495 AbstractCegarLoop]: Abstraction has has 957 places, 965 transitions, 1943 flow [2023-11-23 22:43:13,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:13,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:13,054 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] [2023-11-23 22:43:13,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 22:43:13,054 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-23 22:43:13,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:13,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1528248307, now seen corresponding path program 1 times [2023-11-23 22:43:13,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:13,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026273677] [2023-11-23 22:43:13,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:13,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:13,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:13,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:13,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026273677] [2023-11-23 22:43:13,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026273677] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:13,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:13,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:13,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235643575] [2023-11-23 22:43:13,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:13,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:13,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:13,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:13,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:13,143 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1035 out of 1081 [2023-11-23 22:43:13,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 957 places, 965 transitions, 1943 flow. Second operand has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:13,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:13,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1035 of 1081 [2023-11-23 22:43:13,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:13,507 INFO L124 PetriNetUnfolderBase]: 29/1230 cut-off events. [2023-11-23 22:43:13,507 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2023-11-23 22:43:13,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1267 conditions, 1230 events. 29/1230 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3175 event pairs, 6 based on Foata normal form. 0/1083 useless extension candidates. Maximal degree in co-relation 1224. Up to 25 conditions per place. [2023-11-23 22:43:13,529 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 12 selfloop transitions, 2 changer transitions 0/964 dead transitions. [2023-11-23 22:43:13,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 958 places, 964 transitions, 1969 flow [2023-11-23 22:43:13,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:13,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:13,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3120 transitions. [2023-11-23 22:43:13,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620721554116559 [2023-11-23 22:43:13,539 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3120 transitions. [2023-11-23 22:43:13,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3120 transitions. [2023-11-23 22:43:13,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:13,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3120 transitions. [2023-11-23 22:43:13,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:13,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:13,555 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:13,555 INFO L175 Difference]: Start difference. First operand has 957 places, 965 transitions, 1943 flow. Second operand 3 states and 3120 transitions. [2023-11-23 22:43:13,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 958 places, 964 transitions, 1969 flow [2023-11-23 22:43:13,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 956 places, 964 transitions, 1965 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:43:13,578 INFO L231 Difference]: Finished difference. Result has 956 places, 964 transitions, 1941 flow [2023-11-23 22:43:13,580 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1937, PETRI_DIFFERENCE_MINUEND_PLACES=954, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=964, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=962, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1941, PETRI_PLACES=956, PETRI_TRANSITIONS=964} [2023-11-23 22:43:13,581 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -58 predicate places. [2023-11-23 22:43:13,581 INFO L495 AbstractCegarLoop]: Abstraction has has 956 places, 964 transitions, 1941 flow [2023-11-23 22:43:13,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:13,582 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:13,583 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] [2023-11-23 22:43:13,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 22:43:13,583 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-23 22:43:13,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:13,584 INFO L85 PathProgramCache]: Analyzing trace with hash -914159682, now seen corresponding path program 1 times [2023-11-23 22:43:13,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:13,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36952455] [2023-11-23 22:43:13,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:13,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:13,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:13,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:13,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36952455] [2023-11-23 22:43:13,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36952455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:13,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:13,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:13,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865969313] [2023-11-23 22:43:13,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:13,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:13,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:13,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:13,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:13,665 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1035 out of 1081 [2023-11-23 22:43:13,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 956 places, 964 transitions, 1941 flow. Second operand has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:13,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:13,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1035 of 1081 [2023-11-23 22:43:13,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:14,111 INFO L124 PetriNetUnfolderBase]: 29/1191 cut-off events. [2023-11-23 22:43:14,111 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2023-11-23 22:43:14,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1228 conditions, 1191 events. 29/1191 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3061 event pairs, 6 based on Foata normal form. 0/1051 useless extension candidates. Maximal degree in co-relation 1185. Up to 25 conditions per place. [2023-11-23 22:43:14,132 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 12 selfloop transitions, 2 changer transitions 0/963 dead transitions. [2023-11-23 22:43:14,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 957 places, 963 transitions, 1967 flow [2023-11-23 22:43:14,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:14,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:14,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3120 transitions. [2023-11-23 22:43:14,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620721554116559 [2023-11-23 22:43:14,144 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3120 transitions. [2023-11-23 22:43:14,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3120 transitions. [2023-11-23 22:43:14,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:14,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3120 transitions. [2023-11-23 22:43:14,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1040.0) internal successors, (3120), 3 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:14,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:14,163 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:14,164 INFO L175 Difference]: Start difference. First operand has 956 places, 964 transitions, 1941 flow. Second operand 3 states and 3120 transitions. [2023-11-23 22:43:14,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 957 places, 963 transitions, 1967 flow [2023-11-23 22:43:14,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 955 places, 963 transitions, 1963 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:43:14,190 INFO L231 Difference]: Finished difference. Result has 955 places, 963 transitions, 1939 flow [2023-11-23 22:43:14,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1935, PETRI_DIFFERENCE_MINUEND_PLACES=953, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=963, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=961, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1939, PETRI_PLACES=955, PETRI_TRANSITIONS=963} [2023-11-23 22:43:14,193 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -59 predicate places. [2023-11-23 22:43:14,193 INFO L495 AbstractCegarLoop]: Abstraction has has 955 places, 963 transitions, 1939 flow [2023-11-23 22:43:14,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1036.3333333333333) internal successors, (3109), 3 states have internal predecessors, (3109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:14,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:14,195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:14,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 22:43:14,195 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-23 22:43:14,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:14,196 INFO L85 PathProgramCache]: Analyzing trace with hash -248508112, now seen corresponding path program 1 times [2023-11-23 22:43:14,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:14,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962520928] [2023-11-23 22:43:14,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:14,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:14,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:14,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:14,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962520928] [2023-11-23 22:43:14,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962520928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:14,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:14,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:43:14,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830747477] [2023-11-23 22:43:14,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:14,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:43:14,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:14,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:43:14,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:43:14,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1034 out of 1081 [2023-11-23 22:43:14,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 955 places, 963 transitions, 1939 flow. Second operand has 3 states, 3 states have (on average 1035.3333333333333) internal successors, (3106), 3 states have internal predecessors, (3106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:14,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:14,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1034 of 1081 [2023-11-23 22:43:14,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:43:15,044 INFO L124 PetriNetUnfolderBase]: 61/2134 cut-off events. [2023-11-23 22:43:15,044 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-23 22:43:15,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2206 conditions, 2134 events. 61/2134 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 10882 event pairs, 20 based on Foata normal form. 0/1836 useless extension candidates. Maximal degree in co-relation 2163. Up to 50 conditions per place. [2023-11-23 22:43:15,085 INFO L140 encePairwiseOnDemand]: 1078/1081 looper letters, 13 selfloop transitions, 2 changer transitions 0/962 dead transitions. [2023-11-23 22:43:15,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 956 places, 962 transitions, 1967 flow [2023-11-23 22:43:15,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:43:15,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:43:15,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3118 transitions. [2023-11-23 22:43:15,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9614554424915202 [2023-11-23 22:43:15,094 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3118 transitions. [2023-11-23 22:43:15,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3118 transitions. [2023-11-23 22:43:15,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:43:15,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3118 transitions. [2023-11-23 22:43:15,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1039.3333333333333) internal successors, (3118), 3 states have internal predecessors, (3118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:15,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:15,107 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1081.0) internal successors, (4324), 4 states have internal predecessors, (4324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:15,107 INFO L175 Difference]: Start difference. First operand has 955 places, 963 transitions, 1939 flow. Second operand 3 states and 3118 transitions. [2023-11-23 22:43:15,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 956 places, 962 transitions, 1967 flow [2023-11-23 22:43:15,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 954 places, 962 transitions, 1963 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:43:15,132 INFO L231 Difference]: Finished difference. Result has 954 places, 962 transitions, 1937 flow [2023-11-23 22:43:15,133 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1081, PETRI_DIFFERENCE_MINUEND_FLOW=1933, PETRI_DIFFERENCE_MINUEND_PLACES=952, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=960, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1937, PETRI_PLACES=954, PETRI_TRANSITIONS=962} [2023-11-23 22:43:15,134 INFO L281 CegarLoopForPetriNet]: 1014 programPoint places, -60 predicate places. [2023-11-23 22:43:15,134 INFO L495 AbstractCegarLoop]: Abstraction has has 954 places, 962 transitions, 1937 flow [2023-11-23 22:43:15,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1035.3333333333333) internal successors, (3106), 3 states have internal predecessors, (3106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:15,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:43:15,135 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:43:15,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-23 22:43:15,136 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-11-23 22:43:15,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:43:15,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1016363657, now seen corresponding path program 1 times [2023-11-23 22:43:15,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:43:15,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026719690] [2023-11-23 22:43:15,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:43:15,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:43:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:43:16,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:43:16,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:43:16,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026719690] [2023-11-23 22:43:16,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026719690] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:43:16,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:43:16,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:43:16,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920950042] [2023-11-23 22:43:16,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:43:16,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:43:16,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:43:16,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:43:16,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:43:17,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 934 out of 1081 [2023-11-23 22:43:17,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 954 places, 962 transitions, 1937 flow. Second operand has 6 states, 6 states have (on average 935.5) internal successors, (5613), 6 states have internal predecessors, (5613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:43:17,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:43:17,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 934 of 1081 [2023-11-23 22:43:17,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand