./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02c91ee-9f2a-408b-9490-0b8f4020f578/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02c91ee-9f2a-408b-9490-0b8f4020f578/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02c91ee-9f2a-408b-9490-0b8f4020f578/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02c91ee-9f2a-408b-9490-0b8f4020f578/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02c91ee-9f2a-408b-9490-0b8f4020f578/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02c91ee-9f2a-408b-9490-0b8f4020f578/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:23:41,505 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:23:41,599 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02c91ee-9f2a-408b-9490-0b8f4020f578/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:23:41,607 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:23:41,608 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:23:41,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:23:41,640 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:23:41,641 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:23:41,642 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:23:41,642 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:23:41,643 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:23:41,643 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:23:41,644 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:23:41,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:23:41,645 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:23:41,646 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:23:41,646 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:23:41,647 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:23:41,647 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:23:41,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:23:41,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:23:41,649 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:23:41,650 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:23:41,650 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:23:41,651 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:23:41,651 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:23:41,652 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:23:41,653 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:23:41,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:23:41,654 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:23:41,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:41,655 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:23:41,655 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:23:41,655 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:23:41,656 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:23:41,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:23:41,657 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:23:41,657 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:23:41,658 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:23:41,658 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:23:41,659 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:23:41,661 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_b02c91ee-9f2a-408b-9490-0b8f4020f578/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02c91ee-9f2a-408b-9490-0b8f4020f578/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 [2023-11-21 22:23:41,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:23:41,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:23:41,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:23:42,000 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:23:42,001 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:23:42,003 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02c91ee-9f2a-408b-9490-0b8f4020f578/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2023-11-21 22:23:45,228 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:23:45,489 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:23:45,489 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02c91ee-9f2a-408b-9490-0b8f4020f578/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2023-11-21 22:23:45,499 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02c91ee-9f2a-408b-9490-0b8f4020f578/bin/uautomizer-verify-bycVGegfSx/data/f6d1b7592/5c6973b3486a44f2884bbf88ff29c6e6/FLAG1e80d75bb [2023-11-21 22:23:45,513 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02c91ee-9f2a-408b-9490-0b8f4020f578/bin/uautomizer-verify-bycVGegfSx/data/f6d1b7592/5c6973b3486a44f2884bbf88ff29c6e6 [2023-11-21 22:23:45,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:23:45,517 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:23:45,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:45,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:23:45,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:23:45,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:45" (1/1) ... [2023-11-21 22:23:45,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d8ea49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:45, skipping insertion in model container [2023-11-21 22:23:45,525 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:45" (1/1) ... [2023-11-21 22:23:45,555 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:23:45,809 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:45,822 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:23:45,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:45,899 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:23:45,899 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:23:45,907 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:23:45,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:45 WrapperNode [2023-11-21 22:23:45,908 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:45,909 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:45,909 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:23:45,910 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:23:45,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:45" (1/1) ... [2023-11-21 22:23:45,937 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:45" (1/1) ... [2023-11-21 22:23:46,002 INFO L138 Inliner]: procedures = 26, calls = 94, calls flagged for inlining = 28, calls inlined = 34, statements flattened = 1033 [2023-11-21 22:23:46,002 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:46,003 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:23:46,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:23:46,004 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:23:46,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:45" (1/1) ... [2023-11-21 22:23:46,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:45" (1/1) ... [2023-11-21 22:23:46,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:45" (1/1) ... [2023-11-21 22:23:46,027 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:45" (1/1) ... [2023-11-21 22:23:46,112 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:45" (1/1) ... [2023-11-21 22:23:46,129 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:45" (1/1) ... [2023-11-21 22:23:46,135 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:45" (1/1) ... [2023-11-21 22:23:46,140 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:45" (1/1) ... [2023-11-21 22:23:46,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:23:46,167 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:23:46,167 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:23:46,175 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:23:46,176 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:45" (1/1) ... [2023-11-21 22:23:46,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:46,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02c91ee-9f2a-408b-9490-0b8f4020f578/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:46,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02c91ee-9f2a-408b-9490-0b8f4020f578/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:23:46,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b02c91ee-9f2a-408b-9490-0b8f4020f578/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:23:46,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:23:46,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:23:46,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:23:46,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:23:46,270 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 22:23:46,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 22:23:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 22:23:46,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 22:23:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-21 22:23:46,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-21 22:23:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-21 22:23:46,273 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-21 22:23:46,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:23:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:23:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:23:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:23:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:23:46,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:23:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:23:46,278 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:23:46,494 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:23:46,498 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:23:48,104 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:23:49,652 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:23:49,652 INFO L308 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-21 22:23:49,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:49 BoogieIcfgContainer [2023-11-21 22:23:49,655 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:23:49,658 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:23:49,658 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:23:49,661 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:23:49,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:23:45" (1/3) ... [2023-11-21 22:23:49,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f7329b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:49, skipping insertion in model container [2023-11-21 22:23:49,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:45" (2/3) ... [2023-11-21 22:23:49,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f7329b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:49, skipping insertion in model container [2023-11-21 22:23:49,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:49" (3/3) ... [2023-11-21 22:23:49,665 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-2.wvr.c [2023-11-21 22:23:49,675 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:23:49,687 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:23:49,688 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 168 error locations. [2023-11-21 22:23:49,688 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:23:49,910 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-21 22:23:50,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 650 places, 662 transitions, 1352 flow [2023-11-21 22:23:50,280 INFO L124 PetriNetUnfolderBase]: 25/658 cut-off events. [2023-11-21 22:23:50,280 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-21 22:23:50,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 675 conditions, 658 events. 25/658 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1106 event pairs, 0 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 565. Up to 2 conditions per place. [2023-11-21 22:23:50,292 INFO L82 GeneralOperation]: Start removeDead. Operand has 650 places, 662 transitions, 1352 flow [2023-11-21 22:23:50,311 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 622 places, 633 transitions, 1290 flow [2023-11-21 22:23:50,321 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:23:50,329 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;@4da5da6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:23:50,329 INFO L358 AbstractCegarLoop]: Starting to check reachability of 304 error locations. [2023-11-21 22:23:50,336 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:23:50,336 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2023-11-21 22:23:50,336 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:23:50,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:23:50,337 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:50,338 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:23:50,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:50,344 INFO L85 PathProgramCache]: Analyzing trace with hash -527386000, now seen corresponding path program 1 times [2023-11-21 22:23:50,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:50,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411788603] [2023-11-21 22:23:50,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:50,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:50,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:50,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:50,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411788603] [2023-11-21 22:23:50,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411788603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:23:50,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:23:50,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:23:50,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132811249] [2023-11-21 22:23:50,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:23:50,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:23:50,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:50,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:23:50,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:23:50,763 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 662 [2023-11-21 22:23:50,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 633 transitions, 1290 flow. Second operand has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:50,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:23:50,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 662 [2023-11-21 22:23:50,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:23:52,670 INFO L124 PetriNetUnfolderBase]: 942/2992 cut-off events. [2023-11-21 22:23:52,670 INFO L125 PetriNetUnfolderBase]: For 328/338 co-relation queries the response was YES. [2023-11-21 22:23:52,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4515 conditions, 2992 events. 942/2992 cut-off events. For 328/338 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 21270 event pairs, 586 based on Foata normal form. 626/3331 useless extension candidates. Maximal degree in co-relation 3903. Up to 1259 conditions per place. [2023-11-21 22:23:52,708 INFO L140 encePairwiseOnDemand]: 511/662 looper letters, 24 selfloop transitions, 2 changer transitions 8/484 dead transitions. [2023-11-21 22:23:52,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 484 transitions, 1044 flow [2023-11-21 22:23:52,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:23:52,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:23:52,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1627 transitions. [2023-11-21 22:23:52,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8192346424974823 [2023-11-21 22:23:52,737 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1627 transitions. [2023-11-21 22:23:52,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1627 transitions. [2023-11-21 22:23:52,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:23:52,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1627 transitions. [2023-11-21 22:23:52,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 542.3333333333334) internal successors, (1627), 3 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:52,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:52,784 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:52,786 INFO L175 Difference]: Start difference. First operand has 622 places, 633 transitions, 1290 flow. Second operand 3 states and 1627 transitions. [2023-11-21 22:23:52,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 484 transitions, 1044 flow [2023-11-21 22:23:52,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 484 transitions, 1028 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-21 22:23:52,813 INFO L231 Difference]: Finished difference. Result has 483 places, 476 transitions, 964 flow [2023-11-21 22:23:52,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=976, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=482, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=964, PETRI_PLACES=483, PETRI_TRANSITIONS=476} [2023-11-21 22:23:52,821 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -139 predicate places. [2023-11-21 22:23:52,822 INFO L495 AbstractCegarLoop]: Abstraction has has 483 places, 476 transitions, 964 flow [2023-11-21 22:23:52,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:52,824 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:23:52,824 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:52,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:23:52,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:23:52,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:52,825 INFO L85 PathProgramCache]: Analyzing trace with hash -457599684, now seen corresponding path program 1 times [2023-11-21 22:23:52,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:52,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567976807] [2023-11-21 22:23:52,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:52,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:52,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:52,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:52,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567976807] [2023-11-21 22:23:52,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567976807] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:23:52,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:23:52,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:23:52,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889771143] [2023-11-21 22:23:52,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:23:52,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:23:52,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:52,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:23:52,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:23:52,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 662 [2023-11-21 22:23:52,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 476 transitions, 964 flow. Second operand has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:52,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:23:52,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 662 [2023-11-21 22:23:52,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:23:54,363 INFO L124 PetriNetUnfolderBase]: 942/2983 cut-off events. [2023-11-21 22:23:54,363 INFO L125 PetriNetUnfolderBase]: For 79/89 co-relation queries the response was YES. [2023-11-21 22:23:54,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4337 conditions, 2983 events. 942/2983 cut-off events. For 79/89 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 21309 event pairs, 586 based on Foata normal form. 0/2705 useless extension candidates. Maximal degree in co-relation 4295. Up to 1259 conditions per place. [2023-11-21 22:23:54,399 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 24 selfloop transitions, 2 changer transitions 0/475 dead transitions. [2023-11-21 22:23:54,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 475 transitions, 1014 flow [2023-11-21 22:23:54,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:23:54,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:23:54,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1479 transitions. [2023-11-21 22:23:54,406 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7447129909365559 [2023-11-21 22:23:54,406 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1479 transitions. [2023-11-21 22:23:54,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1479 transitions. [2023-11-21 22:23:54,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:23:54,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1479 transitions. [2023-11-21 22:23:54,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.0) internal successors, (1479), 3 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:54,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:54,505 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:54,505 INFO L175 Difference]: Start difference. First operand has 483 places, 476 transitions, 964 flow. Second operand 3 states and 1479 transitions. [2023-11-21 22:23:54,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 475 transitions, 1014 flow [2023-11-21 22:23:54,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 475 transitions, 1010 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:23:54,521 INFO L231 Difference]: Finished difference. Result has 474 places, 475 transitions, 962 flow [2023-11-21 22:23:54,522 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=958, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=962, PETRI_PLACES=474, PETRI_TRANSITIONS=475} [2023-11-21 22:23:54,523 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -148 predicate places. [2023-11-21 22:23:54,523 INFO L495 AbstractCegarLoop]: Abstraction has has 474 places, 475 transitions, 962 flow [2023-11-21 22:23:54,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:54,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:23:54,526 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:54,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:23:54,527 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:23:54,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:54,533 INFO L85 PathProgramCache]: Analyzing trace with hash -415980754, now seen corresponding path program 1 times [2023-11-21 22:23:54,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:54,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619439160] [2023-11-21 22:23:54,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:54,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:54,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:54,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:54,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619439160] [2023-11-21 22:23:54,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619439160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:23:54,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:23:54,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:23:54,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111605466] [2023-11-21 22:23:54,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:23:54,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:23:54,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:54,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:23:54,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:23:54,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 662 [2023-11-21 22:23:54,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 475 transitions, 962 flow. Second operand has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:54,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:23:54,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 662 [2023-11-21 22:23:54,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:23:56,007 INFO L124 PetriNetUnfolderBase]: 942/2982 cut-off events. [2023-11-21 22:23:56,007 INFO L125 PetriNetUnfolderBase]: For 79/89 co-relation queries the response was YES. [2023-11-21 22:23:56,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4336 conditions, 2982 events. 942/2982 cut-off events. For 79/89 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 21301 event pairs, 586 based on Foata normal form. 0/2705 useless extension candidates. Maximal degree in co-relation 4286. Up to 1259 conditions per place. [2023-11-21 22:23:56,042 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 24 selfloop transitions, 2 changer transitions 0/474 dead transitions. [2023-11-21 22:23:56,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 474 transitions, 1012 flow [2023-11-21 22:23:56,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:23:56,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:23:56,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1479 transitions. [2023-11-21 22:23:56,048 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7447129909365559 [2023-11-21 22:23:56,048 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1479 transitions. [2023-11-21 22:23:56,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1479 transitions. [2023-11-21 22:23:56,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:23:56,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1479 transitions. [2023-11-21 22:23:56,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.0) internal successors, (1479), 3 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:56,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:56,065 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:56,065 INFO L175 Difference]: Start difference. First operand has 474 places, 475 transitions, 962 flow. Second operand 3 states and 1479 transitions. [2023-11-21 22:23:56,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 474 transitions, 1012 flow [2023-11-21 22:23:56,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 474 transitions, 1008 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:23:56,077 INFO L231 Difference]: Finished difference. Result has 473 places, 474 transitions, 960 flow [2023-11-21 22:23:56,078 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=472, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=960, PETRI_PLACES=473, PETRI_TRANSITIONS=474} [2023-11-21 22:23:56,080 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -149 predicate places. [2023-11-21 22:23:56,080 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 474 transitions, 960 flow [2023-11-21 22:23:56,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:56,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:23:56,082 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:56,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:23:56,083 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:23:56,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:56,084 INFO L85 PathProgramCache]: Analyzing trace with hash 780927437, now seen corresponding path program 1 times [2023-11-21 22:23:56,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:56,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189823769] [2023-11-21 22:23:56,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:56,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:56,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:56,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:56,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189823769] [2023-11-21 22:23:56,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189823769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:23:56,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:23:56,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:23:56,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101889344] [2023-11-21 22:23:56,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:23:56,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:23:56,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:56,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:23:56,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:23:56,213 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 662 [2023-11-21 22:23:56,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 474 transitions, 960 flow. Second operand has 3 states, 3 states have (on average 489.0) internal successors, (1467), 3 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:56,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:23:56,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 662 [2023-11-21 22:23:56,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:23:57,672 INFO L124 PetriNetUnfolderBase]: 1031/2800 cut-off events. [2023-11-21 22:23:57,673 INFO L125 PetriNetUnfolderBase]: For 106/117 co-relation queries the response was YES. [2023-11-21 22:23:57,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4282 conditions, 2800 events. 1031/2800 cut-off events. For 106/117 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 16406 event pairs, 122 based on Foata normal form. 1/2605 useless extension candidates. Maximal degree in co-relation 4224. Up to 1124 conditions per place. [2023-11-21 22:23:57,701 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 35 selfloop transitions, 2 changer transitions 0/487 dead transitions. [2023-11-21 22:23:57,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 487 transitions, 1067 flow [2023-11-21 22:23:57,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:23:57,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:23:57,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1502 transitions. [2023-11-21 22:23:57,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.756294058408862 [2023-11-21 22:23:57,708 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1502 transitions. [2023-11-21 22:23:57,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1502 transitions. [2023-11-21 22:23:57,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:23:57,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1502 transitions. [2023-11-21 22:23:57,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 500.6666666666667) internal successors, (1502), 3 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:57,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:57,724 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:57,724 INFO L175 Difference]: Start difference. First operand has 473 places, 474 transitions, 960 flow. Second operand 3 states and 1502 transitions. [2023-11-21 22:23:57,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 487 transitions, 1067 flow [2023-11-21 22:23:57,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 487 transitions, 1063 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:23:57,742 INFO L231 Difference]: Finished difference. Result has 473 places, 474 transitions, 964 flow [2023-11-21 22:23:57,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=954, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=964, PETRI_PLACES=473, PETRI_TRANSITIONS=474} [2023-11-21 22:23:57,745 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -149 predicate places. [2023-11-21 22:23:57,746 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 474 transitions, 964 flow [2023-11-21 22:23:57,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 489.0) internal successors, (1467), 3 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:57,748 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:23:57,748 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] [2023-11-21 22:23:57,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:23:57,748 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:23:57,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:57,749 INFO L85 PathProgramCache]: Analyzing trace with hash 671104961, now seen corresponding path program 1 times [2023-11-21 22:23:57,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:57,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189608757] [2023-11-21 22:23:57,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:57,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:57,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:57,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:57,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189608757] [2023-11-21 22:23:57,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189608757] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:23:57,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:23:57,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:23:57,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356591883] [2023-11-21 22:23:57,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:23:57,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:23:57,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:57,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:23:57,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:23:57,855 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 662 [2023-11-21 22:23:57,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 474 transitions, 964 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:57,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:23:57,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 662 [2023-11-21 22:23:57,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:23:58,979 INFO L124 PetriNetUnfolderBase]: 1031/3329 cut-off events. [2023-11-21 22:23:58,979 INFO L125 PetriNetUnfolderBase]: For 183/206 co-relation queries the response was YES. [2023-11-21 22:23:58,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4927 conditions, 3329 events. 1031/3329 cut-off events. For 183/206 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 24397 event pairs, 655 based on Foata normal form. 0/3009 useless extension candidates. Maximal degree in co-relation 2455. Up to 1388 conditions per place. [2023-11-21 22:23:59,012 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 24 selfloop transitions, 2 changer transitions 0/473 dead transitions. [2023-11-21 22:23:59,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 473 transitions, 1014 flow [2023-11-21 22:23:59,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:23:59,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:23:59,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1481 transitions. [2023-11-21 22:23:59,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7457200402819738 [2023-11-21 22:23:59,017 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1481 transitions. [2023-11-21 22:23:59,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1481 transitions. [2023-11-21 22:23:59,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:23:59,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1481 transitions. [2023-11-21 22:23:59,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.6666666666667) internal successors, (1481), 3 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:59,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:59,030 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:59,031 INFO L175 Difference]: Start difference. First operand has 473 places, 474 transitions, 964 flow. Second operand 3 states and 1481 transitions. [2023-11-21 22:23:59,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 473 transitions, 1014 flow [2023-11-21 22:23:59,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 473 transitions, 1012 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:23:59,042 INFO L231 Difference]: Finished difference. Result has 473 places, 473 transitions, 964 flow [2023-11-21 22:23:59,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=960, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=964, PETRI_PLACES=473, PETRI_TRANSITIONS=473} [2023-11-21 22:23:59,044 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -149 predicate places. [2023-11-21 22:23:59,044 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 473 transitions, 964 flow [2023-11-21 22:23:59,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:59,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:23:59,046 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:59,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:23:59,046 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:23:59,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:59,047 INFO L85 PathProgramCache]: Analyzing trace with hash -181655210, now seen corresponding path program 1 times [2023-11-21 22:23:59,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:59,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175979628] [2023-11-21 22:23:59,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:59,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:59,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:23:59,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:59,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175979628] [2023-11-21 22:23:59,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175979628] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:23:59,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:23:59,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:23:59,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856663271] [2023-11-21 22:23:59,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:23:59,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:23:59,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:59,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:23:59,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:23:59,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 662 [2023-11-21 22:23:59,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 473 transitions, 964 flow. Second operand has 3 states, 3 states have (on average 489.0) internal successors, (1467), 3 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:23:59,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:23:59,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 662 [2023-11-21 22:23:59,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:00,273 INFO L124 PetriNetUnfolderBase]: 1031/3328 cut-off events. [2023-11-21 22:24:00,273 INFO L125 PetriNetUnfolderBase]: For 182/205 co-relation queries the response was YES. [2023-11-21 22:24:00,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4889 conditions, 3328 events. 1031/3328 cut-off events. For 182/205 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 24429 event pairs, 655 based on Foata normal form. 0/3009 useless extension candidates. Maximal degree in co-relation 4822. Up to 1386 conditions per place. [2023-11-21 22:24:00,306 INFO L140 encePairwiseOnDemand]: 660/662 looper letters, 23 selfloop transitions, 1 changer transitions 0/472 dead transitions. [2023-11-21 22:24:00,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 472 transitions, 1010 flow [2023-11-21 22:24:00,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:00,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:00,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1488 transitions. [2023-11-21 22:24:00,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7492447129909365 [2023-11-21 22:24:00,312 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1488 transitions. [2023-11-21 22:24:00,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1488 transitions. [2023-11-21 22:24:00,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:00,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1488 transitions. [2023-11-21 22:24:00,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:00,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:00,327 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:00,327 INFO L175 Difference]: Start difference. First operand has 473 places, 473 transitions, 964 flow. Second operand 3 states and 1488 transitions. [2023-11-21 22:24:00,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 472 transitions, 1010 flow [2023-11-21 22:24:00,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 472 transitions, 1006 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:24:00,338 INFO L231 Difference]: Finished difference. Result has 472 places, 472 transitions, 960 flow [2023-11-21 22:24:00,339 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=958, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=960, PETRI_PLACES=472, PETRI_TRANSITIONS=472} [2023-11-21 22:24:00,340 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -150 predicate places. [2023-11-21 22:24:00,340 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 472 transitions, 960 flow [2023-11-21 22:24:00,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 489.0) internal successors, (1467), 3 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:00,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:00,342 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] [2023-11-21 22:24:00,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:24:00,343 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:00,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:00,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1835905421, now seen corresponding path program 1 times [2023-11-21 22:24:00,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:00,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248281323] [2023-11-21 22:24:00,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:00,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:01,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:01,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:01,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248281323] [2023-11-21 22:24:01,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248281323] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:01,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:01,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:24:01,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798247293] [2023-11-21 22:24:01,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:01,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:24:01,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:01,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:24:01,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:24:01,614 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 662 [2023-11-21 22:24:01,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 472 transitions, 960 flow. Second operand has 6 states, 6 states have (on average 421.5) internal successors, (2529), 6 states have internal predecessors, (2529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:01,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:01,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 662 [2023-11-21 22:24:01,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:05,833 INFO L124 PetriNetUnfolderBase]: 4871/10083 cut-off events. [2023-11-21 22:24:05,833 INFO L125 PetriNetUnfolderBase]: For 399/402 co-relation queries the response was YES. [2023-11-21 22:24:05,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16816 conditions, 10083 events. 4871/10083 cut-off events. For 399/402 co-relation queries the response was YES. Maximal size of possible extension queue 461. Compared 80706 event pairs, 3359 based on Foata normal form. 0/9239 useless extension candidates. Maximal degree in co-relation 16750. Up to 6325 conditions per place. [2023-11-21 22:24:05,944 INFO L140 encePairwiseOnDemand]: 638/662 looper letters, 69 selfloop transitions, 20 changer transitions 0/468 dead transitions. [2023-11-21 22:24:05,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 468 transitions, 1130 flow [2023-11-21 22:24:05,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:24:05,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:24:05,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2612 transitions. [2023-11-21 22:24:05,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6576032225579054 [2023-11-21 22:24:05,954 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2612 transitions. [2023-11-21 22:24:05,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2612 transitions. [2023-11-21 22:24:05,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:05,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2612 transitions. [2023-11-21 22:24:05,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 435.3333333333333) internal successors, (2612), 6 states have internal predecessors, (2612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:05,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 662.0) internal successors, (4634), 7 states have internal predecessors, (4634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:05,995 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 662.0) internal successors, (4634), 7 states have internal predecessors, (4634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:05,995 INFO L175 Difference]: Start difference. First operand has 472 places, 472 transitions, 960 flow. Second operand 6 states and 2612 transitions. [2023-11-21 22:24:05,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 468 transitions, 1130 flow [2023-11-21 22:24:06,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 468 transitions, 1129 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:24:06,008 INFO L231 Difference]: Finished difference. Result has 472 places, 468 transitions, 991 flow [2023-11-21 22:24:06,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=951, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=991, PETRI_PLACES=472, PETRI_TRANSITIONS=468} [2023-11-21 22:24:06,010 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -150 predicate places. [2023-11-21 22:24:06,011 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 468 transitions, 991 flow [2023-11-21 22:24:06,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 421.5) internal successors, (2529), 6 states have internal predecessors, (2529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:06,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:06,012 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] [2023-11-21 22:24:06,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:24:06,013 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:06,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:06,013 INFO L85 PathProgramCache]: Analyzing trace with hash 214333512, now seen corresponding path program 1 times [2023-11-21 22:24:06,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:06,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129475604] [2023-11-21 22:24:06,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:06,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:06,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:06,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:06,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129475604] [2023-11-21 22:24:06,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129475604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:06,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:06,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:06,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557065864] [2023-11-21 22:24:06,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:06,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:06,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:06,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:06,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:06,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 662 [2023-11-21 22:24:06,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 468 transitions, 991 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:06,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:06,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 662 [2023-11-21 22:24:06,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:07,279 INFO L124 PetriNetUnfolderBase]: 1031/3323 cut-off events. [2023-11-21 22:24:07,279 INFO L125 PetriNetUnfolderBase]: For 182/205 co-relation queries the response was YES. [2023-11-21 22:24:07,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4905 conditions, 3323 events. 1031/3323 cut-off events. For 182/205 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 24480 event pairs, 655 based on Foata normal form. 0/3009 useless extension candidates. Maximal degree in co-relation 4841. Up to 1388 conditions per place. [2023-11-21 22:24:07,313 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 24 selfloop transitions, 2 changer transitions 0/467 dead transitions. [2023-11-21 22:24:07,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 467 transitions, 1041 flow [2023-11-21 22:24:07,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:07,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:07,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1481 transitions. [2023-11-21 22:24:07,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7457200402819738 [2023-11-21 22:24:07,319 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1481 transitions. [2023-11-21 22:24:07,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1481 transitions. [2023-11-21 22:24:07,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:07,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1481 transitions. [2023-11-21 22:24:07,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.6666666666667) internal successors, (1481), 3 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:07,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:07,330 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:07,331 INFO L175 Difference]: Start difference. First operand has 472 places, 468 transitions, 991 flow. Second operand 3 states and 1481 transitions. [2023-11-21 22:24:07,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 467 transitions, 1041 flow [2023-11-21 22:24:07,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 467 transitions, 1001 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:24:07,342 INFO L231 Difference]: Finished difference. Result has 468 places, 467 transitions, 953 flow [2023-11-21 22:24:07,343 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=949, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=953, PETRI_PLACES=468, PETRI_TRANSITIONS=467} [2023-11-21 22:24:07,344 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -154 predicate places. [2023-11-21 22:24:07,344 INFO L495 AbstractCegarLoop]: Abstraction has has 468 places, 467 transitions, 953 flow [2023-11-21 22:24:07,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:07,345 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:07,346 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] [2023-11-21 22:24:07,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:24:07,346 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:07,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:07,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1704769461, now seen corresponding path program 1 times [2023-11-21 22:24:07,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:07,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892118977] [2023-11-21 22:24:07,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:07,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:07,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:07,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:07,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892118977] [2023-11-21 22:24:07,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892118977] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:07,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:07,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:07,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381874876] [2023-11-21 22:24:07,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:07,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:07,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:07,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:07,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:07,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 662 [2023-11-21 22:24:07,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 467 transitions, 953 flow. Second operand has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:07,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:07,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 662 [2023-11-21 22:24:07,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:08,311 INFO L124 PetriNetUnfolderBase]: 1031/3322 cut-off events. [2023-11-21 22:24:08,311 INFO L125 PetriNetUnfolderBase]: For 182/205 co-relation queries the response was YES. [2023-11-21 22:24:08,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4887 conditions, 3322 events. 1031/3322 cut-off events. For 182/205 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 24392 event pairs, 655 based on Foata normal form. 0/3009 useless extension candidates. Maximal degree in co-relation 4820. Up to 1389 conditions per place. [2023-11-21 22:24:08,350 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 25 selfloop transitions, 2 changer transitions 0/466 dead transitions. [2023-11-21 22:24:08,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 466 transitions, 1005 flow [2023-11-21 22:24:08,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:08,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:08,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1479 transitions. [2023-11-21 22:24:08,356 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7447129909365559 [2023-11-21 22:24:08,356 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1479 transitions. [2023-11-21 22:24:08,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1479 transitions. [2023-11-21 22:24:08,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:08,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1479 transitions. [2023-11-21 22:24:08,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.0) internal successors, (1479), 3 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:08,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:08,367 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:08,367 INFO L175 Difference]: Start difference. First operand has 468 places, 467 transitions, 953 flow. Second operand 3 states and 1479 transitions. [2023-11-21 22:24:08,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 466 transitions, 1005 flow [2023-11-21 22:24:08,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 466 transitions, 1001 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:24:08,378 INFO L231 Difference]: Finished difference. Result has 467 places, 466 transitions, 951 flow [2023-11-21 22:24:08,379 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=947, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=951, PETRI_PLACES=467, PETRI_TRANSITIONS=466} [2023-11-21 22:24:08,380 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -155 predicate places. [2023-11-21 22:24:08,380 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 466 transitions, 951 flow [2023-11-21 22:24:08,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:08,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:08,382 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] [2023-11-21 22:24:08,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:24:08,382 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:08,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:08,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1311756523, now seen corresponding path program 1 times [2023-11-21 22:24:08,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:08,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756749219] [2023-11-21 22:24:08,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:08,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:08,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:08,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:08,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756749219] [2023-11-21 22:24:08,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756749219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:08,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:08,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:08,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552913976] [2023-11-21 22:24:08,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:08,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:08,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:08,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:08,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:08,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 662 [2023-11-21 22:24:08,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 466 transitions, 951 flow. Second operand has 3 states, 3 states have (on average 489.0) internal successors, (1467), 3 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:08,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:08,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 662 [2023-11-21 22:24:08,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:09,613 INFO L124 PetriNetUnfolderBase]: 1298/3693 cut-off events. [2023-11-21 22:24:09,613 INFO L125 PetriNetUnfolderBase]: For 237/261 co-relation queries the response was YES. [2023-11-21 22:24:09,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5633 conditions, 3693 events. 1298/3693 cut-off events. For 237/261 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 27004 event pairs, 467 based on Foata normal form. 2/3421 useless extension candidates. Maximal degree in co-relation 5567. Up to 946 conditions per place. [2023-11-21 22:24:09,651 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 39 selfloop transitions, 2 changer transitions 0/482 dead transitions. [2023-11-21 22:24:09,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 482 transitions, 1073 flow [2023-11-21 22:24:09,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:09,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:09,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1504 transitions. [2023-11-21 22:24:09,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.75730110775428 [2023-11-21 22:24:09,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1504 transitions. [2023-11-21 22:24:09,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1504 transitions. [2023-11-21 22:24:09,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:09,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1504 transitions. [2023-11-21 22:24:09,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 501.3333333333333) internal successors, (1504), 3 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:09,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:09,668 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:09,668 INFO L175 Difference]: Start difference. First operand has 467 places, 466 transitions, 951 flow. Second operand 3 states and 1504 transitions. [2023-11-21 22:24:09,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 482 transitions, 1073 flow [2023-11-21 22:24:09,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 482 transitions, 1069 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:24:09,679 INFO L231 Difference]: Finished difference. Result has 467 places, 466 transitions, 955 flow [2023-11-21 22:24:09,680 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=955, PETRI_PLACES=467, PETRI_TRANSITIONS=466} [2023-11-21 22:24:09,681 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -155 predicate places. [2023-11-21 22:24:09,681 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 466 transitions, 955 flow [2023-11-21 22:24:09,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 489.0) internal successors, (1467), 3 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:09,682 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:09,682 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] [2023-11-21 22:24:09,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:24:09,683 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:09,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:09,683 INFO L85 PathProgramCache]: Analyzing trace with hash -412804517, now seen corresponding path program 1 times [2023-11-21 22:24:09,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:09,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594992002] [2023-11-21 22:24:09,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:09,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:09,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:09,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:09,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594992002] [2023-11-21 22:24:09,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594992002] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:09,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:09,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:09,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888009874] [2023-11-21 22:24:09,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:09,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:09,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:09,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:09,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:09,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 662 [2023-11-21 22:24:09,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 466 transitions, 955 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:09,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:09,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 662 [2023-11-21 22:24:09,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:11,212 INFO L124 PetriNetUnfolderBase]: 1298/3692 cut-off events. [2023-11-21 22:24:11,213 INFO L125 PetriNetUnfolderBase]: For 312/336 co-relation queries the response was YES. [2023-11-21 22:24:11,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5901 conditions, 3692 events. 1298/3692 cut-off events. For 312/336 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 27105 event pairs, 851 based on Foata normal form. 0/3377 useless extension candidates. Maximal degree in co-relation 5833. Up to 1747 conditions per place. [2023-11-21 22:24:11,258 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 25 selfloop transitions, 2 changer transitions 0/465 dead transitions. [2023-11-21 22:24:11,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 465 transitions, 1007 flow [2023-11-21 22:24:11,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:11,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:11,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1481 transitions. [2023-11-21 22:24:11,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7457200402819738 [2023-11-21 22:24:11,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1481 transitions. [2023-11-21 22:24:11,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1481 transitions. [2023-11-21 22:24:11,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:11,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1481 transitions. [2023-11-21 22:24:11,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.6666666666667) internal successors, (1481), 3 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:11,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:11,278 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:11,279 INFO L175 Difference]: Start difference. First operand has 467 places, 466 transitions, 955 flow. Second operand 3 states and 1481 transitions. [2023-11-21 22:24:11,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 465 transitions, 1007 flow [2023-11-21 22:24:11,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 465 transitions, 1005 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:24:11,293 INFO L231 Difference]: Finished difference. Result has 467 places, 465 transitions, 955 flow [2023-11-21 22:24:11,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=951, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=955, PETRI_PLACES=467, PETRI_TRANSITIONS=465} [2023-11-21 22:24:11,295 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -155 predicate places. [2023-11-21 22:24:11,295 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 465 transitions, 955 flow [2023-11-21 22:24:11,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:11,296 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:11,296 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] [2023-11-21 22:24:11,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:24:11,297 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:11,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:11,297 INFO L85 PathProgramCache]: Analyzing trace with hash 2118564867, now seen corresponding path program 1 times [2023-11-21 22:24:11,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:11,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511028777] [2023-11-21 22:24:11,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:11,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:11,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:11,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:11,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511028777] [2023-11-21 22:24:11,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511028777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:11,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:11,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:11,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729748413] [2023-11-21 22:24:11,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:11,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:11,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:11,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:11,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:11,368 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 662 [2023-11-21 22:24:11,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 465 transitions, 955 flow. Second operand has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:11,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:11,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 662 [2023-11-21 22:24:11,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:12,773 INFO L124 PetriNetUnfolderBase]: 1298/3691 cut-off events. [2023-11-21 22:24:12,774 INFO L125 PetriNetUnfolderBase]: For 311/335 co-relation queries the response was YES. [2023-11-21 22:24:12,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5814 conditions, 3691 events. 1298/3691 cut-off events. For 311/335 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 27141 event pairs, 851 based on Foata normal form. 0/3377 useless extension candidates. Maximal degree in co-relation 5746. Up to 1748 conditions per place. [2023-11-21 22:24:12,821 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 26 selfloop transitions, 2 changer transitions 0/464 dead transitions. [2023-11-21 22:24:12,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 464 transitions, 1009 flow [2023-11-21 22:24:12,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:12,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:12,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1479 transitions. [2023-11-21 22:24:12,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7447129909365559 [2023-11-21 22:24:12,828 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1479 transitions. [2023-11-21 22:24:12,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1479 transitions. [2023-11-21 22:24:12,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:12,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1479 transitions. [2023-11-21 22:24:12,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.0) internal successors, (1479), 3 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:12,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:12,840 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:12,840 INFO L175 Difference]: Start difference. First operand has 467 places, 465 transitions, 955 flow. Second operand 3 states and 1479 transitions. [2023-11-21 22:24:12,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 464 transitions, 1009 flow [2023-11-21 22:24:12,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 464 transitions, 1005 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:24:12,852 INFO L231 Difference]: Finished difference. Result has 466 places, 464 transitions, 953 flow [2023-11-21 22:24:12,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=949, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=953, PETRI_PLACES=466, PETRI_TRANSITIONS=464} [2023-11-21 22:24:12,854 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -156 predicate places. [2023-11-21 22:24:12,855 INFO L495 AbstractCegarLoop]: Abstraction has has 466 places, 464 transitions, 953 flow [2023-11-21 22:24:12,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:12,856 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:12,856 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] [2023-11-21 22:24:12,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 22:24:12,856 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:12,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:12,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1263842657, now seen corresponding path program 1 times [2023-11-21 22:24:12,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:12,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457373777] [2023-11-21 22:24:12,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:12,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:12,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:12,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:12,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457373777] [2023-11-21 22:24:12,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457373777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:12,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:12,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:12,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071793148] [2023-11-21 22:24:12,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:12,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:12,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:12,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:12,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:12,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 662 [2023-11-21 22:24:12,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 464 transitions, 953 flow. Second operand has 3 states, 3 states have (on average 489.0) internal successors, (1467), 3 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:12,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:12,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 662 [2023-11-21 22:24:12,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:14,297 INFO L124 PetriNetUnfolderBase]: 1298/3690 cut-off events. [2023-11-21 22:24:14,297 INFO L125 PetriNetUnfolderBase]: For 312/336 co-relation queries the response was YES. [2023-11-21 22:24:14,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5810 conditions, 3690 events. 1298/3690 cut-off events. For 312/336 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 27125 event pairs, 851 based on Foata normal form. 0/3377 useless extension candidates. Maximal degree in co-relation 5743. Up to 1745 conditions per place. [2023-11-21 22:24:14,317 INFO L140 encePairwiseOnDemand]: 660/662 looper letters, 24 selfloop transitions, 1 changer transitions 0/463 dead transitions. [2023-11-21 22:24:14,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 463 transitions, 1001 flow [2023-11-21 22:24:14,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:14,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:14,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1488 transitions. [2023-11-21 22:24:14,323 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7492447129909365 [2023-11-21 22:24:14,323 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1488 transitions. [2023-11-21 22:24:14,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1488 transitions. [2023-11-21 22:24:14,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:14,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1488 transitions. [2023-11-21 22:24:14,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:14,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:14,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:14,335 INFO L175 Difference]: Start difference. First operand has 466 places, 464 transitions, 953 flow. Second operand 3 states and 1488 transitions. [2023-11-21 22:24:14,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 463 transitions, 1001 flow [2023-11-21 22:24:14,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 463 transitions, 997 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:24:14,346 INFO L231 Difference]: Finished difference. Result has 465 places, 463 transitions, 949 flow [2023-11-21 22:24:14,348 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=947, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=949, PETRI_PLACES=465, PETRI_TRANSITIONS=463} [2023-11-21 22:24:14,348 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -157 predicate places. [2023-11-21 22:24:14,349 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 463 transitions, 949 flow [2023-11-21 22:24:14,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 489.0) internal successors, (1467), 3 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:14,349 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:14,350 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] [2023-11-21 22:24:14,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 22:24:14,350 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:14,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:14,351 INFO L85 PathProgramCache]: Analyzing trace with hash -967337238, now seen corresponding path program 1 times [2023-11-21 22:24:14,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:14,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699404353] [2023-11-21 22:24:14,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:14,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:14,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:14,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:14,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:14,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699404353] [2023-11-21 22:24:14,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699404353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:14,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:14,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:14,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607004529] [2023-11-21 22:24:14,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:14,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:14,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:14,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:14,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:14,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 662 [2023-11-21 22:24:14,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 463 transitions, 949 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:14,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:14,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 662 [2023-11-21 22:24:14,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:15,701 INFO L124 PetriNetUnfolderBase]: 1298/3689 cut-off events. [2023-11-21 22:24:15,701 INFO L125 PetriNetUnfolderBase]: For 311/335 co-relation queries the response was YES. [2023-11-21 22:24:15,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5810 conditions, 3689 events. 1298/3689 cut-off events. For 311/335 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 27176 event pairs, 851 based on Foata normal form. 0/3377 useless extension candidates. Maximal degree in co-relation 5742. Up to 1747 conditions per place. [2023-11-21 22:24:15,736 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 25 selfloop transitions, 2 changer transitions 0/462 dead transitions. [2023-11-21 22:24:15,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 462 transitions, 1001 flow [2023-11-21 22:24:15,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:15,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:15,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1481 transitions. [2023-11-21 22:24:15,742 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7457200402819738 [2023-11-21 22:24:15,742 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1481 transitions. [2023-11-21 22:24:15,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1481 transitions. [2023-11-21 22:24:15,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:15,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1481 transitions. [2023-11-21 22:24:15,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.6666666666667) internal successors, (1481), 3 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:15,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:15,755 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:15,755 INFO L175 Difference]: Start difference. First operand has 465 places, 463 transitions, 949 flow. Second operand 3 states and 1481 transitions. [2023-11-21 22:24:15,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 462 transitions, 1001 flow [2023-11-21 22:24:15,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 462 transitions, 1000 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:24:15,768 INFO L231 Difference]: Finished difference. Result has 465 places, 462 transitions, 950 flow [2023-11-21 22:24:15,769 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=950, PETRI_PLACES=465, PETRI_TRANSITIONS=462} [2023-11-21 22:24:15,770 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -157 predicate places. [2023-11-21 22:24:15,770 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 462 transitions, 950 flow [2023-11-21 22:24:15,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:15,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:15,772 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:24:15,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 22:24:15,772 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:15,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:15,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1617384860, now seen corresponding path program 1 times [2023-11-21 22:24:15,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:15,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902571855] [2023-11-21 22:24:15,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:15,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:15,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:15,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:15,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902571855] [2023-11-21 22:24:15,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902571855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:15,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:15,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:15,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282570636] [2023-11-21 22:24:15,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:15,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:15,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:15,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:15,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:15,864 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 662 [2023-11-21 22:24:15,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 462 transitions, 950 flow. Second operand has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:15,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:15,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 662 [2023-11-21 22:24:15,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:17,154 INFO L124 PetriNetUnfolderBase]: 1298/3688 cut-off events. [2023-11-21 22:24:17,155 INFO L125 PetriNetUnfolderBase]: For 311/335 co-relation queries the response was YES. [2023-11-21 22:24:17,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5812 conditions, 3688 events. 1298/3688 cut-off events. For 311/335 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 27093 event pairs, 851 based on Foata normal form. 0/3377 useless extension candidates. Maximal degree in co-relation 5744. Up to 1748 conditions per place. [2023-11-21 22:24:17,197 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 26 selfloop transitions, 2 changer transitions 0/461 dead transitions. [2023-11-21 22:24:17,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 461 transitions, 1004 flow [2023-11-21 22:24:17,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:17,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:17,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1479 transitions. [2023-11-21 22:24:17,205 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7447129909365559 [2023-11-21 22:24:17,205 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1479 transitions. [2023-11-21 22:24:17,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1479 transitions. [2023-11-21 22:24:17,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:17,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1479 transitions. [2023-11-21 22:24:17,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.0) internal successors, (1479), 3 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:17,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:17,219 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:17,220 INFO L175 Difference]: Start difference. First operand has 465 places, 462 transitions, 950 flow. Second operand 3 states and 1479 transitions. [2023-11-21 22:24:17,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 461 transitions, 1004 flow [2023-11-21 22:24:17,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 461 transitions, 1000 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:24:17,233 INFO L231 Difference]: Finished difference. Result has 464 places, 461 transitions, 948 flow [2023-11-21 22:24:17,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=948, PETRI_PLACES=464, PETRI_TRANSITIONS=461} [2023-11-21 22:24:17,237 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -158 predicate places. [2023-11-21 22:24:17,237 INFO L495 AbstractCegarLoop]: Abstraction has has 464 places, 461 transitions, 948 flow [2023-11-21 22:24:17,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:17,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:17,238 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] [2023-11-21 22:24:17,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 22:24:17,239 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:17,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:17,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1842578561, now seen corresponding path program 1 times [2023-11-21 22:24:17,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:17,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92531389] [2023-11-21 22:24:17,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:17,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:17,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:17,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:17,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92531389] [2023-11-21 22:24:17,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92531389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:17,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:17,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:17,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600686238] [2023-11-21 22:24:17,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:17,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:17,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:17,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:17,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:17,353 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 662 [2023-11-21 22:24:17,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 461 transitions, 948 flow. Second operand has 3 states, 3 states have (on average 489.0) internal successors, (1467), 3 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:17,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:17,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 662 [2023-11-21 22:24:17,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:19,269 INFO L124 PetriNetUnfolderBase]: 1340/4013 cut-off events. [2023-11-21 22:24:19,269 INFO L125 PetriNetUnfolderBase]: For 409/433 co-relation queries the response was YES. [2023-11-21 22:24:19,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6231 conditions, 4013 events. 1340/4013 cut-off events. For 409/433 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 29341 event pairs, 225 based on Foata normal form. 3/3712 useless extension candidates. Maximal degree in co-relation 6164. Up to 1311 conditions per place. [2023-11-21 22:24:19,305 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 42 selfloop transitions, 2 changer transitions 0/479 dead transitions. [2023-11-21 22:24:19,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 479 transitions, 1086 flow [2023-11-21 22:24:19,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:19,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:19,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1505 transitions. [2023-11-21 22:24:19,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7578046324269889 [2023-11-21 22:24:19,312 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1505 transitions. [2023-11-21 22:24:19,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1505 transitions. [2023-11-21 22:24:19,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:19,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1505 transitions. [2023-11-21 22:24:19,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 501.6666666666667) internal successors, (1505), 3 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:19,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:19,325 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:19,325 INFO L175 Difference]: Start difference. First operand has 464 places, 461 transitions, 948 flow. Second operand 3 states and 1505 transitions. [2023-11-21 22:24:19,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 479 transitions, 1086 flow [2023-11-21 22:24:19,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 479 transitions, 1082 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:24:19,340 INFO L231 Difference]: Finished difference. Result has 464 places, 461 transitions, 952 flow [2023-11-21 22:24:19,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=952, PETRI_PLACES=464, PETRI_TRANSITIONS=461} [2023-11-21 22:24:19,342 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -158 predicate places. [2023-11-21 22:24:19,342 INFO L495 AbstractCegarLoop]: Abstraction has has 464 places, 461 transitions, 952 flow [2023-11-21 22:24:19,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 489.0) internal successors, (1467), 3 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:19,343 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:19,343 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] [2023-11-21 22:24:19,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 22:24:19,343 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:19,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:19,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1860872964, now seen corresponding path program 1 times [2023-11-21 22:24:19,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:19,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517272566] [2023-11-21 22:24:19,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:19,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:19,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:19,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:19,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517272566] [2023-11-21 22:24:19,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517272566] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:19,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:19,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:19,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364870590] [2023-11-21 22:24:19,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:19,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:19,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:19,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:19,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:19,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 662 [2023-11-21 22:24:19,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 461 transitions, 952 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:19,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:19,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 662 [2023-11-21 22:24:19,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:21,187 INFO L124 PetriNetUnfolderBase]: 1340/3909 cut-off events. [2023-11-21 22:24:21,188 INFO L125 PetriNetUnfolderBase]: For 608/644 co-relation queries the response was YES. [2023-11-21 22:24:21,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6535 conditions, 3909 events. 1340/3909 cut-off events. For 608/644 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 29033 event pairs, 893 based on Foata normal form. 0/3576 useless extension candidates. Maximal degree in co-relation 6466. Up to 1826 conditions per place. [2023-11-21 22:24:21,220 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 26 selfloop transitions, 2 changer transitions 0/460 dead transitions. [2023-11-21 22:24:21,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 460 transitions, 1006 flow [2023-11-21 22:24:21,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:21,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:21,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1481 transitions. [2023-11-21 22:24:21,227 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7457200402819738 [2023-11-21 22:24:21,227 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1481 transitions. [2023-11-21 22:24:21,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1481 transitions. [2023-11-21 22:24:21,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:21,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1481 transitions. [2023-11-21 22:24:21,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.6666666666667) internal successors, (1481), 3 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:21,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:21,240 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:21,240 INFO L175 Difference]: Start difference. First operand has 464 places, 461 transitions, 952 flow. Second operand 3 states and 1481 transitions. [2023-11-21 22:24:21,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 460 transitions, 1006 flow [2023-11-21 22:24:21,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 460 transitions, 1004 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:24:21,255 INFO L231 Difference]: Finished difference. Result has 464 places, 460 transitions, 952 flow [2023-11-21 22:24:21,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=948, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=952, PETRI_PLACES=464, PETRI_TRANSITIONS=460} [2023-11-21 22:24:21,257 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -158 predicate places. [2023-11-21 22:24:21,257 INFO L495 AbstractCegarLoop]: Abstraction has has 464 places, 460 transitions, 952 flow [2023-11-21 22:24:21,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:21,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:21,258 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] [2023-11-21 22:24:21,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-21 22:24:21,258 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:21,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:21,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1547541937, now seen corresponding path program 1 times [2023-11-21 22:24:21,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:21,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040784267] [2023-11-21 22:24:21,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:21,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:21,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:21,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:21,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040784267] [2023-11-21 22:24:21,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040784267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:21,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:21,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:21,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617371461] [2023-11-21 22:24:21,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:21,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:21,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:21,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:21,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:21,356 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 662 [2023-11-21 22:24:21,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 460 transitions, 952 flow. Second operand has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:21,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:21,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 662 [2023-11-21 22:24:21,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:22,794 INFO L124 PetriNetUnfolderBase]: 1340/3908 cut-off events. [2023-11-21 22:24:22,794 INFO L125 PetriNetUnfolderBase]: For 607/643 co-relation queries the response was YES. [2023-11-21 22:24:22,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6402 conditions, 3908 events. 1340/3908 cut-off events. For 607/643 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 29183 event pairs, 893 based on Foata normal form. 0/3576 useless extension candidates. Maximal degree in co-relation 6333. Up to 1827 conditions per place. [2023-11-21 22:24:22,832 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 27 selfloop transitions, 2 changer transitions 0/459 dead transitions. [2023-11-21 22:24:22,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 459 transitions, 1008 flow [2023-11-21 22:24:22,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:22,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:22,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1479 transitions. [2023-11-21 22:24:22,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7447129909365559 [2023-11-21 22:24:22,838 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1479 transitions. [2023-11-21 22:24:22,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1479 transitions. [2023-11-21 22:24:22,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:22,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1479 transitions. [2023-11-21 22:24:22,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.0) internal successors, (1479), 3 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:22,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:22,848 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:22,848 INFO L175 Difference]: Start difference. First operand has 464 places, 460 transitions, 952 flow. Second operand 3 states and 1479 transitions. [2023-11-21 22:24:22,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 459 transitions, 1008 flow [2023-11-21 22:24:22,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 459 transitions, 1004 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:24:22,859 INFO L231 Difference]: Finished difference. Result has 463 places, 459 transitions, 950 flow [2023-11-21 22:24:22,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=950, PETRI_PLACES=463, PETRI_TRANSITIONS=459} [2023-11-21 22:24:22,861 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -159 predicate places. [2023-11-21 22:24:22,861 INFO L495 AbstractCegarLoop]: Abstraction has has 463 places, 459 transitions, 950 flow [2023-11-21 22:24:22,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:22,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:22,862 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] [2023-11-21 22:24:22,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-21 22:24:22,862 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:22,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:22,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1443575055, now seen corresponding path program 1 times [2023-11-21 22:24:22,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:22,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128718823] [2023-11-21 22:24:22,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:22,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:22,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:22,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:22,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128718823] [2023-11-21 22:24:22,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128718823] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:22,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:22,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:22,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769147004] [2023-11-21 22:24:22,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:22,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:22,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:22,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:22,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:22,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 662 [2023-11-21 22:24:22,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 459 transitions, 950 flow. Second operand has 3 states, 3 states have (on average 489.0) internal successors, (1467), 3 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:22,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:22,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 662 [2023-11-21 22:24:22,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:24,111 INFO L124 PetriNetUnfolderBase]: 1340/3907 cut-off events. [2023-11-21 22:24:24,111 INFO L125 PetriNetUnfolderBase]: For 608/644 co-relation queries the response was YES. [2023-11-21 22:24:24,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6398 conditions, 3907 events. 1340/3907 cut-off events. For 608/644 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 29143 event pairs, 893 based on Foata normal form. 0/3576 useless extension candidates. Maximal degree in co-relation 6330. Up to 1824 conditions per place. [2023-11-21 22:24:24,146 INFO L140 encePairwiseOnDemand]: 660/662 looper letters, 25 selfloop transitions, 1 changer transitions 0/458 dead transitions. [2023-11-21 22:24:24,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 458 transitions, 1000 flow [2023-11-21 22:24:24,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:24,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:24,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1488 transitions. [2023-11-21 22:24:24,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7492447129909365 [2023-11-21 22:24:24,152 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1488 transitions. [2023-11-21 22:24:24,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1488 transitions. [2023-11-21 22:24:24,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:24,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1488 transitions. [2023-11-21 22:24:24,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 496.0) internal successors, (1488), 3 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:24,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:24,163 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:24,163 INFO L175 Difference]: Start difference. First operand has 463 places, 459 transitions, 950 flow. Second operand 3 states and 1488 transitions. [2023-11-21 22:24:24,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 458 transitions, 1000 flow [2023-11-21 22:24:24,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 458 transitions, 996 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:24:24,175 INFO L231 Difference]: Finished difference. Result has 462 places, 458 transitions, 946 flow [2023-11-21 22:24:24,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=946, PETRI_PLACES=462, PETRI_TRANSITIONS=458} [2023-11-21 22:24:24,177 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -160 predicate places. [2023-11-21 22:24:24,177 INFO L495 AbstractCegarLoop]: Abstraction has has 462 places, 458 transitions, 946 flow [2023-11-21 22:24:24,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 489.0) internal successors, (1467), 3 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:24,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:24,178 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:24:24,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-21 22:24:24,178 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:24,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:24,178 INFO L85 PathProgramCache]: Analyzing trace with hash 937598698, now seen corresponding path program 1 times [2023-11-21 22:24:24,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:24,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762061880] [2023-11-21 22:24:24,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:24,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:24,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:24,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:24,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762061880] [2023-11-21 22:24:24,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762061880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:24,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:24,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:24,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450609311] [2023-11-21 22:24:24,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:24,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:24,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:24,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:24,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:24,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 662 [2023-11-21 22:24:24,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 458 transitions, 946 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:24,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:24,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 662 [2023-11-21 22:24:24,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:25,421 INFO L124 PetriNetUnfolderBase]: 1340/3906 cut-off events. [2023-11-21 22:24:25,421 INFO L125 PetriNetUnfolderBase]: For 607/643 co-relation queries the response was YES. [2023-11-21 22:24:25,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6398 conditions, 3906 events. 1340/3906 cut-off events. For 607/643 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 29148 event pairs, 893 based on Foata normal form. 0/3576 useless extension candidates. Maximal degree in co-relation 6329. Up to 1826 conditions per place. [2023-11-21 22:24:25,453 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 26 selfloop transitions, 2 changer transitions 0/457 dead transitions. [2023-11-21 22:24:25,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 457 transitions, 1000 flow [2023-11-21 22:24:25,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:25,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:25,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1481 transitions. [2023-11-21 22:24:25,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7457200402819738 [2023-11-21 22:24:25,458 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1481 transitions. [2023-11-21 22:24:25,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1481 transitions. [2023-11-21 22:24:25,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:25,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1481 transitions. [2023-11-21 22:24:25,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.6666666666667) internal successors, (1481), 3 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:25,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:25,469 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:25,469 INFO L175 Difference]: Start difference. First operand has 462 places, 458 transitions, 946 flow. Second operand 3 states and 1481 transitions. [2023-11-21 22:24:25,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 457 transitions, 1000 flow [2023-11-21 22:24:25,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 457 transitions, 999 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:24:25,482 INFO L231 Difference]: Finished difference. Result has 462 places, 457 transitions, 947 flow [2023-11-21 22:24:25,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=943, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=947, PETRI_PLACES=462, PETRI_TRANSITIONS=457} [2023-11-21 22:24:25,484 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -160 predicate places. [2023-11-21 22:24:25,484 INFO L495 AbstractCegarLoop]: Abstraction has has 462 places, 457 transitions, 947 flow [2023-11-21 22:24:25,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:25,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:25,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:24:25,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-21 22:24:25,486 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:25,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:25,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1298301176, now seen corresponding path program 1 times [2023-11-21 22:24:25,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:25,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393133532] [2023-11-21 22:24:25,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:25,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:25,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:25,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:25,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393133532] [2023-11-21 22:24:25,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393133532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:25,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:25,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:25,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370229205] [2023-11-21 22:24:25,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:25,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:25,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:25,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:25,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:25,577 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 662 [2023-11-21 22:24:25,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 457 transitions, 947 flow. Second operand has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:25,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:25,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 662 [2023-11-21 22:24:25,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:26,691 INFO L124 PetriNetUnfolderBase]: 1340/3905 cut-off events. [2023-11-21 22:24:26,691 INFO L125 PetriNetUnfolderBase]: For 607/643 co-relation queries the response was YES. [2023-11-21 22:24:26,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6400 conditions, 3905 events. 1340/3905 cut-off events. For 607/643 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 29153 event pairs, 893 based on Foata normal form. 0/3576 useless extension candidates. Maximal degree in co-relation 6331. Up to 1827 conditions per place. [2023-11-21 22:24:26,723 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 27 selfloop transitions, 2 changer transitions 0/456 dead transitions. [2023-11-21 22:24:26,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 456 transitions, 1003 flow [2023-11-21 22:24:26,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:26,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:26,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1479 transitions. [2023-11-21 22:24:26,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7447129909365559 [2023-11-21 22:24:26,729 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1479 transitions. [2023-11-21 22:24:26,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1479 transitions. [2023-11-21 22:24:26,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:26,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1479 transitions. [2023-11-21 22:24:26,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.0) internal successors, (1479), 3 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:26,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:26,739 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:26,739 INFO L175 Difference]: Start difference. First operand has 462 places, 457 transitions, 947 flow. Second operand 3 states and 1479 transitions. [2023-11-21 22:24:26,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 456 transitions, 1003 flow [2023-11-21 22:24:26,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 456 transitions, 999 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:24:26,751 INFO L231 Difference]: Finished difference. Result has 461 places, 456 transitions, 945 flow [2023-11-21 22:24:26,752 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=941, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=945, PETRI_PLACES=461, PETRI_TRANSITIONS=456} [2023-11-21 22:24:26,753 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -161 predicate places. [2023-11-21 22:24:26,753 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 456 transitions, 945 flow [2023-11-21 22:24:26,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:26,754 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:26,754 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:24:26,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-21 22:24:26,754 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:26,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:26,755 INFO L85 PathProgramCache]: Analyzing trace with hash -337614493, now seen corresponding path program 1 times [2023-11-21 22:24:26,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:26,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127670183] [2023-11-21 22:24:26,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:26,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:26,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:26,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:26,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127670183] [2023-11-21 22:24:26,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127670183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:26,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:26,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:26,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144472387] [2023-11-21 22:24:26,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:26,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:26,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:26,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:26,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:26,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 662 [2023-11-21 22:24:26,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 456 transitions, 945 flow. Second operand has 3 states, 3 states have (on average 489.0) internal successors, (1467), 3 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:26,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:26,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 662 [2023-11-21 22:24:26,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:28,103 INFO L124 PetriNetUnfolderBase]: 1343/4442 cut-off events. [2023-11-21 22:24:28,103 INFO L125 PetriNetUnfolderBase]: For 566/594 co-relation queries the response was YES. [2023-11-21 22:24:28,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6973 conditions, 4442 events. 1343/4442 cut-off events. For 566/594 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 35810 event pairs, 432 based on Foata normal form. 0/4065 useless extension candidates. Maximal degree in co-relation 6905. Up to 1315 conditions per place. [2023-11-21 22:24:28,143 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 43 selfloop transitions, 2 changer transitions 0/474 dead transitions. [2023-11-21 22:24:28,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 474 transitions, 1088 flow [2023-11-21 22:24:28,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:28,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:28,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1504 transitions. [2023-11-21 22:24:28,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.75730110775428 [2023-11-21 22:24:28,148 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1504 transitions. [2023-11-21 22:24:28,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1504 transitions. [2023-11-21 22:24:28,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:28,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1504 transitions. [2023-11-21 22:24:28,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 501.3333333333333) internal successors, (1504), 3 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:28,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:28,153 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:28,153 INFO L175 Difference]: Start difference. First operand has 461 places, 456 transitions, 945 flow. Second operand 3 states and 1504 transitions. [2023-11-21 22:24:28,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 474 transitions, 1088 flow [2023-11-21 22:24:28,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 474 transitions, 1084 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:24:28,162 INFO L231 Difference]: Finished difference. Result has 461 places, 456 transitions, 949 flow [2023-11-21 22:24:28,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=939, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=949, PETRI_PLACES=461, PETRI_TRANSITIONS=456} [2023-11-21 22:24:28,164 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -161 predicate places. [2023-11-21 22:24:28,164 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 456 transitions, 949 flow [2023-11-21 22:24:28,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 489.0) internal successors, (1467), 3 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:28,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:28,165 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:24:28,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-21 22:24:28,165 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:28,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:28,166 INFO L85 PathProgramCache]: Analyzing trace with hash -811600568, now seen corresponding path program 1 times [2023-11-21 22:24:28,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:28,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242756130] [2023-11-21 22:24:28,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:28,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:28,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:28,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:28,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242756130] [2023-11-21 22:24:28,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242756130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:28,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:28,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:28,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931841139] [2023-11-21 22:24:28,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:28,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:28,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:28,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:28,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:28,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 662 [2023-11-21 22:24:28,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 456 transitions, 949 flow. Second operand has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:28,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:28,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 662 [2023-11-21 22:24:28,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:29,405 INFO L124 PetriNetUnfolderBase]: 1343/4038 cut-off events. [2023-11-21 22:24:29,405 INFO L125 PetriNetUnfolderBase]: For 910/954 co-relation queries the response was YES. [2023-11-21 22:24:29,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7006 conditions, 4038 events. 1343/4038 cut-off events. For 910/954 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 30494 event pairs, 908 based on Foata normal form. 0/3700 useless extension candidates. Maximal degree in co-relation 6936. Up to 1854 conditions per place. [2023-11-21 22:24:29,439 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 27 selfloop transitions, 2 changer transitions 0/455 dead transitions. [2023-11-21 22:24:29,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 455 transitions, 1005 flow [2023-11-21 22:24:29,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:29,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:29,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1481 transitions. [2023-11-21 22:24:29,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7457200402819738 [2023-11-21 22:24:29,444 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1481 transitions. [2023-11-21 22:24:29,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1481 transitions. [2023-11-21 22:24:29,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:29,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1481 transitions. [2023-11-21 22:24:29,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.6666666666667) internal successors, (1481), 3 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:29,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:29,450 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:29,450 INFO L175 Difference]: Start difference. First operand has 461 places, 456 transitions, 949 flow. Second operand 3 states and 1481 transitions. [2023-11-21 22:24:29,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 455 transitions, 1005 flow [2023-11-21 22:24:29,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 455 transitions, 1003 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:24:29,459 INFO L231 Difference]: Finished difference. Result has 461 places, 455 transitions, 949 flow [2023-11-21 22:24:29,460 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=949, PETRI_PLACES=461, PETRI_TRANSITIONS=455} [2023-11-21 22:24:29,460 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -161 predicate places. [2023-11-21 22:24:29,461 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 455 transitions, 949 flow [2023-11-21 22:24:29,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.3333333333333) internal successors, (1459), 3 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:29,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:29,461 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:24:29,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-21 22:24:29,462 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:29,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:29,462 INFO L85 PathProgramCache]: Analyzing trace with hash 734611223, now seen corresponding path program 1 times [2023-11-21 22:24:29,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:29,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204869627] [2023-11-21 22:24:29,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:29,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:29,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:29,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:29,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:29,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204869627] [2023-11-21 22:24:29,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204869627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:29,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:29,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:29,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46272601] [2023-11-21 22:24:29,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:29,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:29,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:29,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:29,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:29,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 662 [2023-11-21 22:24:29,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 455 transitions, 949 flow. Second operand has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:29,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:29,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 662 [2023-11-21 22:24:29,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:24:30,683 INFO L124 PetriNetUnfolderBase]: 1343/4037 cut-off events. [2023-11-21 22:24:30,684 INFO L125 PetriNetUnfolderBase]: For 909/953 co-relation queries the response was YES. [2023-11-21 22:24:30,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6863 conditions, 4037 events. 1343/4037 cut-off events. For 909/953 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 30514 event pairs, 908 based on Foata normal form. 0/3700 useless extension candidates. Maximal degree in co-relation 6793. Up to 1855 conditions per place. [2023-11-21 22:24:30,718 INFO L140 encePairwiseOnDemand]: 659/662 looper letters, 28 selfloop transitions, 2 changer transitions 0/454 dead transitions. [2023-11-21 22:24:30,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 454 transitions, 1007 flow [2023-11-21 22:24:30,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:30,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:24:30,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1479 transitions. [2023-11-21 22:24:30,724 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7447129909365559 [2023-11-21 22:24:30,724 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1479 transitions. [2023-11-21 22:24:30,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1479 transitions. [2023-11-21 22:24:30,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:30,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1479 transitions. [2023-11-21 22:24:30,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 493.0) internal successors, (1479), 3 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:30,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:30,731 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:30,732 INFO L175 Difference]: Start difference. First operand has 461 places, 455 transitions, 949 flow. Second operand 3 states and 1479 transitions. [2023-11-21 22:24:30,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 454 transitions, 1007 flow [2023-11-21 22:24:30,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 454 transitions, 1003 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:24:30,744 INFO L231 Difference]: Finished difference. Result has 460 places, 454 transitions, 947 flow [2023-11-21 22:24:30,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=662, PETRI_DIFFERENCE_MINUEND_FLOW=943, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=947, PETRI_PLACES=460, PETRI_TRANSITIONS=454} [2023-11-21 22:24:30,746 INFO L281 CegarLoopForPetriNet]: 622 programPoint places, -162 predicate places. [2023-11-21 22:24:30,746 INFO L495 AbstractCegarLoop]: Abstraction has has 460 places, 454 transitions, 947 flow [2023-11-21 22:24:30,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 485.3333333333333) internal successors, (1456), 3 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:30,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:24:30,747 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:24:30,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-21 22:24:30,747 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-21 22:24:30,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:30,748 INFO L85 PathProgramCache]: Analyzing trace with hash 263732514, now seen corresponding path program 1 times [2023-11-21 22:24:30,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:30,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727670749] [2023-11-21 22:24:30,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:30,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:30,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:30,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:30,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727670749] [2023-11-21 22:24:30,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727670749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:30,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:30,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:30,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928100398] [2023-11-21 22:24:30,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:30,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:24:30,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:30,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:30,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:30,834 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 662 [2023-11-21 22:24:30,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 454 transitions, 947 flow. Second operand has 3 states, 3 states have (on average 489.0) internal successors, (1467), 3 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:30,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:24:30,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 662 [2023-11-21 22:24:30,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand