./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056b286-35e1-4958-ba7a-1624958c35e5/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056b286-35e1-4958-ba7a-1624958c35e5/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056b286-35e1-4958-ba7a-1624958c35e5/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056b286-35e1-4958-ba7a-1624958c35e5/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056b286-35e1-4958-ba7a-1624958c35e5/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056b286-35e1-4958-ba7a-1624958c35e5/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d0975dc4466296431d96c26938a2e71864de63aba998f18ecd8a32ca341796b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:49:38,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:49:38,519 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056b286-35e1-4958-ba7a-1624958c35e5/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:49:38,524 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:49:38,525 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:49:38,549 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:49:38,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:49:38,551 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:49:38,552 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:49:38,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:49:38,554 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:49:38,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:49:38,555 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:49:38,555 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:49:38,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:49:38,557 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:49:38,557 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:49:38,558 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:49:38,559 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:49:38,559 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:49:38,560 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:49:38,561 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:49:38,562 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:49:38,562 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:49:38,563 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:49:38,564 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:49:38,564 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:49:38,565 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:49:38,565 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:49:38,566 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:49:38,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:49:38,567 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:49:38,568 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:49:38,568 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:49:38,568 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:49:38,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:49:38,569 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:49:38,570 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:49:38,570 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:49:38,570 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:49:38,570 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:49:38,571 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_8056b286-35e1-4958-ba7a-1624958c35e5/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056b286-35e1-4958-ba7a-1624958c35e5/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d0975dc4466296431d96c26938a2e71864de63aba998f18ecd8a32ca341796b [2023-11-26 10:49:38,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:49:38,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:49:38,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:49:38,931 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:49:38,931 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:49:38,933 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056b286-35e1-4958-ba7a-1624958c35e5/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2023-11-26 10:49:42,078 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:49:42,419 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:49:42,421 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056b286-35e1-4958-ba7a-1624958c35e5/sv-benchmarks/c/weaver/chl-nzb-file-trans.wvr.c [2023-11-26 10:49:42,432 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056b286-35e1-4958-ba7a-1624958c35e5/bin/uautomizer-verify-VRDe98Ueme/data/9e9d5c0f5/6b8b9b6fa188460eb377261453faff2f/FLAGfa7024294 [2023-11-26 10:49:42,663 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056b286-35e1-4958-ba7a-1624958c35e5/bin/uautomizer-verify-VRDe98Ueme/data/9e9d5c0f5/6b8b9b6fa188460eb377261453faff2f [2023-11-26 10:49:42,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:49:42,669 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:49:42,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:42,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:49:42,685 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:49:42,688 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:42" (1/1) ... [2023-11-26 10:49:42,692 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87111d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:42, skipping insertion in model container [2023-11-26 10:49:42,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:49:42" (1/1) ... [2023-11-26 10:49:42,748 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:49:43,042 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:43,055 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:49:43,204 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:49:43,223 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:49:43,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:43 WrapperNode [2023-11-26 10:49:43,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:49:43,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:49:43,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:49:43,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:49:43,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:43" (1/1) ... [2023-11-26 10:49:43,264 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:43" (1/1) ... [2023-11-26 10:49:43,333 INFO L138 Inliner]: procedures = 26, calls = 77, calls flagged for inlining = 29, calls inlined = 43, statements flattened = 1339 [2023-11-26 10:49:43,334 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:49:43,335 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:49:43,335 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:49:43,335 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:49:43,345 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:43" (1/1) ... [2023-11-26 10:49:43,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:43" (1/1) ... [2023-11-26 10:49:43,363 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:43" (1/1) ... [2023-11-26 10:49:43,375 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:43" (1/1) ... [2023-11-26 10:49:43,438 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:43" (1/1) ... [2023-11-26 10:49:43,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:43" (1/1) ... [2023-11-26 10:49:43,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:43" (1/1) ... [2023-11-26 10:49:43,495 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:43" (1/1) ... [2023-11-26 10:49:43,505 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:49:43,517 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:49:43,517 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:49:43,518 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:49:43,519 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:43" (1/1) ... [2023-11-26 10:49:43,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:49:43,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056b286-35e1-4958-ba7a-1624958c35e5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:49:43,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056b286-35e1-4958-ba7a-1624958c35e5/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:49:43,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8056b286-35e1-4958-ba7a-1624958c35e5/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:49:43,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:49:43,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:49:43,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:49:43,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:49:43,613 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 10:49:43,614 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 10:49:43,614 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 10:49:43,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 10:49:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 10:49:43,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 10:49:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:49:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 10:49:43,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:49:43,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:49:43,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:49:43,620 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:49:43,817 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:49:43,819 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:49:45,799 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:49:45,832 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:49:45,833 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-26 10:49:45,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:45 BoogieIcfgContainer [2023-11-26 10:49:45,836 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:49:45,838 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:49:45,838 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:49:45,842 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:49:45,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:49:42" (1/3) ... [2023-11-26 10:49:45,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662c685a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:45, skipping insertion in model container [2023-11-26 10:49:45,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:49:43" (2/3) ... [2023-11-26 10:49:45,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662c685a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:49:45, skipping insertion in model container [2023-11-26 10:49:45,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:49:45" (3/3) ... [2023-11-26 10:49:45,846 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.c [2023-11-26 10:49:45,856 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:49:45,868 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:49:45,869 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 228 error locations. [2023-11-26 10:49:45,869 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:49:46,341 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-26 10:49:46,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1688 places, 1789 transitions, 3599 flow [2023-11-26 10:49:48,663 INFO L124 PetriNetUnfolderBase]: 111/1786 cut-off events. [2023-11-26 10:49:48,664 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 10:49:48,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1799 conditions, 1786 events. 111/1786 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 7773 event pairs, 0 based on Foata normal form. 0/1447 useless extension candidates. Maximal degree in co-relation 1391. Up to 2 conditions per place. [2023-11-26 10:49:48,816 INFO L82 GeneralOperation]: Start removeDead. Operand has 1688 places, 1789 transitions, 3599 flow [2023-11-26 10:49:48,919 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1660 places, 1759 transitions, 3536 flow [2023-11-26 10:49:48,936 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:49:48,944 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;@78665e57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:49:48,944 INFO L358 AbstractCegarLoop]: Starting to check reachability of 429 error locations. [2023-11-26 10:49:48,950 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:49:48,951 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2023-11-26 10:49:48,951 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:49:48,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:48,952 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:48,952 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-26 10:49:48,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:48,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1226712167, now seen corresponding path program 1 times [2023-11-26 10:49:48,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:48,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670683870] [2023-11-26 10:49:48,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:48,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:49,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:49,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:49,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670683870] [2023-11-26 10:49:49,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670683870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:49,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:49,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:49,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776014030] [2023-11-26 10:49:49,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:49,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:49,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:49,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:49,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:49,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1736 out of 1789 [2023-11-26 10:49:49,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1660 places, 1759 transitions, 3536 flow. Second operand has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:49,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:49,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1736 of 1789 [2023-11-26 10:49:49,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:52,038 INFO L124 PetriNetUnfolderBase]: 124/2651 cut-off events. [2023-11-26 10:49:52,038 INFO L125 PetriNetUnfolderBase]: For 22/24 co-relation queries the response was YES. [2023-11-26 10:49:52,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2694 conditions, 2651 events. 124/2651 cut-off events. For 22/24 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 14845 event pairs, 5 based on Foata normal form. 110/2232 useless extension candidates. Maximal degree in co-relation 2283. Up to 22 conditions per place. [2023-11-26 10:49:52,229 INFO L140 encePairwiseOnDemand]: 1750/1789 looper letters, 11 selfloop transitions, 2 changer transitions 6/1722 dead transitions. [2023-11-26 10:49:52,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1661 places, 1722 transitions, 3488 flow [2023-11-26 10:49:52,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:52,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:52,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5258 transitions. [2023-11-26 10:49:52,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9796907024408422 [2023-11-26 10:49:52,272 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5258 transitions. [2023-11-26 10:49:52,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5258 transitions. [2023-11-26 10:49:52,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:52,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5258 transitions. [2023-11-26 10:49:52,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1752.6666666666667) internal successors, (5258), 3 states have internal predecessors, (5258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:52,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:52,345 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:52,348 INFO L175 Difference]: Start difference. First operand has 1660 places, 1759 transitions, 3536 flow. Second operand 3 states and 5258 transitions. [2023-11-26 10:49:52,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1661 places, 1722 transitions, 3488 flow [2023-11-26 10:49:52,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1655 places, 1722 transitions, 3476 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-26 10:49:52,422 INFO L231 Difference]: Finished difference. Result has 1655 places, 1716 transitions, 3442 flow [2023-11-26 10:49:52,428 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3450, PETRI_DIFFERENCE_MINUEND_PLACES=1653, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1722, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1720, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3442, PETRI_PLACES=1655, PETRI_TRANSITIONS=1716} [2023-11-26 10:49:52,432 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -5 predicate places. [2023-11-26 10:49:52,433 INFO L495 AbstractCegarLoop]: Abstraction has has 1655 places, 1716 transitions, 3442 flow [2023-11-26 10:49:52,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:52,438 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:52,438 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:52,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:49:52,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-26 10:49:52,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:52,440 INFO L85 PathProgramCache]: Analyzing trace with hash -663947919, now seen corresponding path program 1 times [2023-11-26 10:49:52,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:52,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153807464] [2023-11-26 10:49:52,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:52,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:52,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:52,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:52,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153807464] [2023-11-26 10:49:52,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153807464] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:52,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:52,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:52,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151676274] [2023-11-26 10:49:52,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:52,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:52,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:52,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:52,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:52,664 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1736 out of 1789 [2023-11-26 10:49:52,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1655 places, 1716 transitions, 3442 flow. Second operand has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:52,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:52,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1736 of 1789 [2023-11-26 10:49:52,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:54,879 INFO L124 PetriNetUnfolderBase]: 124/2644 cut-off events. [2023-11-26 10:49:54,879 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-11-26 10:49:55,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2677 conditions, 2644 events. 124/2644 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 15368 event pairs, 5 based on Foata normal form. 0/2123 useless extension candidates. Maximal degree in co-relation 2631. Up to 22 conditions per place. [2023-11-26 10:49:55,084 INFO L140 encePairwiseOnDemand]: 1786/1789 looper letters, 11 selfloop transitions, 2 changer transitions 0/1715 dead transitions. [2023-11-26 10:49:55,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1650 places, 1715 transitions, 3466 flow [2023-11-26 10:49:55,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:55,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:55,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5222 transitions. [2023-11-26 10:49:55,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9729830445313956 [2023-11-26 10:49:55,101 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5222 transitions. [2023-11-26 10:49:55,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5222 transitions. [2023-11-26 10:49:55,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:55,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5222 transitions. [2023-11-26 10:49:55,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1740.6666666666667) internal successors, (5222), 3 states have internal predecessors, (5222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:55,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:55,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:55,148 INFO L175 Difference]: Start difference. First operand has 1655 places, 1716 transitions, 3442 flow. Second operand 3 states and 5222 transitions. [2023-11-26 10:49:55,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1650 places, 1715 transitions, 3466 flow [2023-11-26 10:49:55,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1648 places, 1715 transitions, 3462 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:55,187 INFO L231 Difference]: Finished difference. Result has 1648 places, 1715 transitions, 3440 flow [2023-11-26 10:49:55,191 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3436, PETRI_DIFFERENCE_MINUEND_PLACES=1646, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1715, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1713, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3440, PETRI_PLACES=1648, PETRI_TRANSITIONS=1715} [2023-11-26 10:49:55,192 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -12 predicate places. [2023-11-26 10:49:55,192 INFO L495 AbstractCegarLoop]: Abstraction has has 1648 places, 1715 transitions, 3440 flow [2023-11-26 10:49:55,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:55,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:55,200 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:55,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:49:55,202 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-26 10:49:55,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:55,202 INFO L85 PathProgramCache]: Analyzing trace with hash 879587352, now seen corresponding path program 1 times [2023-11-26 10:49:55,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:55,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953982646] [2023-11-26 10:49:55,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:55,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:55,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:55,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:55,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953982646] [2023-11-26 10:49:55,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953982646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:55,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:55,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:55,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548326507] [2023-11-26 10:49:55,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:55,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:55,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:55,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:55,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:55,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1736 out of 1789 [2023-11-26 10:49:55,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1648 places, 1715 transitions, 3440 flow. Second operand has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:55,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:55,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1736 of 1789 [2023-11-26 10:49:55,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:58,436 INFO L124 PetriNetUnfolderBase]: 172/3546 cut-off events. [2023-11-26 10:49:58,436 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2023-11-26 10:49:58,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3584 conditions, 3546 events. 172/3546 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 22116 event pairs, 7 based on Foata normal form. 0/2829 useless extension candidates. Maximal degree in co-relation 3530. Up to 25 conditions per place. [2023-11-26 10:49:58,656 INFO L140 encePairwiseOnDemand]: 1786/1789 looper letters, 11 selfloop transitions, 2 changer transitions 0/1714 dead transitions. [2023-11-26 10:49:58,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1649 places, 1714 transitions, 3464 flow [2023-11-26 10:49:58,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:58,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:58,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5222 transitions. [2023-11-26 10:49:58,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9729830445313956 [2023-11-26 10:49:58,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5222 transitions. [2023-11-26 10:49:58,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5222 transitions. [2023-11-26 10:49:58,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:58,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5222 transitions. [2023-11-26 10:49:58,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1740.6666666666667) internal successors, (5222), 3 states have internal predecessors, (5222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:58,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:58,720 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:58,720 INFO L175 Difference]: Start difference. First operand has 1648 places, 1715 transitions, 3440 flow. Second operand 3 states and 5222 transitions. [2023-11-26 10:49:58,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1649 places, 1714 transitions, 3464 flow [2023-11-26 10:49:58,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1647 places, 1714 transitions, 3460 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:58,918 INFO L231 Difference]: Finished difference. Result has 1647 places, 1714 transitions, 3438 flow [2023-11-26 10:49:58,922 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3434, PETRI_DIFFERENCE_MINUEND_PLACES=1645, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1714, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1712, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3438, PETRI_PLACES=1647, PETRI_TRANSITIONS=1714} [2023-11-26 10:49:58,923 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -13 predicate places. [2023-11-26 10:49:58,924 INFO L495 AbstractCegarLoop]: Abstraction has has 1647 places, 1714 transitions, 3438 flow [2023-11-26 10:49:58,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:58,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:58,926 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:58,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:49:58,927 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-26 10:49:58,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:58,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1385452071, now seen corresponding path program 1 times [2023-11-26 10:49:58,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:58,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183226349] [2023-11-26 10:49:58,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:58,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:59,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:59,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:59,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183226349] [2023-11-26 10:49:59,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183226349] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:59,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:59,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:59,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298037271] [2023-11-26 10:49:59,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:59,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:59,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:59,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:59,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:59,066 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1736 out of 1789 [2023-11-26 10:49:59,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1647 places, 1714 transitions, 3438 flow. Second operand has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:59,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:59,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1736 of 1789 [2023-11-26 10:49:59,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:50:01,525 INFO L124 PetriNetUnfolderBase]: 172/3545 cut-off events. [2023-11-26 10:50:01,525 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2023-11-26 10:50:01,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3583 conditions, 3545 events. 172/3545 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 23163 event pairs, 7 based on Foata normal form. 0/2829 useless extension candidates. Maximal degree in co-relation 3521. Up to 25 conditions per place. [2023-11-26 10:50:01,706 INFO L140 encePairwiseOnDemand]: 1786/1789 looper letters, 11 selfloop transitions, 2 changer transitions 0/1713 dead transitions. [2023-11-26 10:50:01,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1648 places, 1713 transitions, 3462 flow [2023-11-26 10:50:01,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:50:01,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:50:01,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5222 transitions. [2023-11-26 10:50:01,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9729830445313956 [2023-11-26 10:50:01,723 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5222 transitions. [2023-11-26 10:50:01,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5222 transitions. [2023-11-26 10:50:01,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:50:01,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5222 transitions. [2023-11-26 10:50:01,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1740.6666666666667) internal successors, (5222), 3 states have internal predecessors, (5222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:01,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:01,904 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:01,905 INFO L175 Difference]: Start difference. First operand has 1647 places, 1714 transitions, 3438 flow. Second operand 3 states and 5222 transitions. [2023-11-26 10:50:01,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1648 places, 1713 transitions, 3462 flow [2023-11-26 10:50:01,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1646 places, 1713 transitions, 3458 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:50:01,960 INFO L231 Difference]: Finished difference. Result has 1646 places, 1713 transitions, 3436 flow [2023-11-26 10:50:01,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3432, PETRI_DIFFERENCE_MINUEND_PLACES=1644, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1713, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1711, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3436, PETRI_PLACES=1646, PETRI_TRANSITIONS=1713} [2023-11-26 10:50:01,966 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -14 predicate places. [2023-11-26 10:50:01,966 INFO L495 AbstractCegarLoop]: Abstraction has has 1646 places, 1713 transitions, 3436 flow [2023-11-26 10:50:01,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:01,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:50:01,968 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:01,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:50:01,968 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-26 10:50:01,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:01,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1341153435, now seen corresponding path program 1 times [2023-11-26 10:50:01,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:01,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243278042] [2023-11-26 10:50:01,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:01,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:02,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:02,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:02,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243278042] [2023-11-26 10:50:02,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243278042] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:02,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:02,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:02,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143285717] [2023-11-26 10:50:02,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:02,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:50:02,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:02,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:50:02,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:50:02,117 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1736 out of 1789 [2023-11-26 10:50:02,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1646 places, 1713 transitions, 3436 flow. Second operand has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:02,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:50:02,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1736 of 1789 [2023-11-26 10:50:02,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:50:03,997 INFO L124 PetriNetUnfolderBase]: 103/2210 cut-off events. [2023-11-26 10:50:03,997 INFO L125 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2023-11-26 10:50:04,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2245 conditions, 2210 events. 103/2210 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 11479 event pairs, 7 based on Foata normal form. 0/1786 useless extension candidates. Maximal degree in co-relation 2175. Up to 25 conditions per place. [2023-11-26 10:50:04,133 INFO L140 encePairwiseOnDemand]: 1786/1789 looper letters, 11 selfloop transitions, 2 changer transitions 0/1712 dead transitions. [2023-11-26 10:50:04,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1647 places, 1712 transitions, 3460 flow [2023-11-26 10:50:04,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:50:04,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:50:04,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5222 transitions. [2023-11-26 10:50:04,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9729830445313956 [2023-11-26 10:50:04,147 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5222 transitions. [2023-11-26 10:50:04,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5222 transitions. [2023-11-26 10:50:04,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:50:04,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5222 transitions. [2023-11-26 10:50:04,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1740.6666666666667) internal successors, (5222), 3 states have internal predecessors, (5222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:04,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:04,180 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:04,181 INFO L175 Difference]: Start difference. First operand has 1646 places, 1713 transitions, 3436 flow. Second operand 3 states and 5222 transitions. [2023-11-26 10:50:04,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1647 places, 1712 transitions, 3460 flow [2023-11-26 10:50:04,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1645 places, 1712 transitions, 3456 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:50:04,219 INFO L231 Difference]: Finished difference. Result has 1645 places, 1712 transitions, 3434 flow [2023-11-26 10:50:04,222 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3430, PETRI_DIFFERENCE_MINUEND_PLACES=1643, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1712, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1710, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3434, PETRI_PLACES=1645, PETRI_TRANSITIONS=1712} [2023-11-26 10:50:04,222 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -15 predicate places. [2023-11-26 10:50:04,223 INFO L495 AbstractCegarLoop]: Abstraction has has 1645 places, 1712 transitions, 3434 flow [2023-11-26 10:50:04,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:04,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:50:04,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:04,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:50:04,225 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-26 10:50:04,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:04,225 INFO L85 PathProgramCache]: Analyzing trace with hash -570911808, now seen corresponding path program 1 times [2023-11-26 10:50:04,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:04,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095024721] [2023-11-26 10:50:04,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:04,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:04,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:04,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:04,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095024721] [2023-11-26 10:50:04,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095024721] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:04,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:04,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:04,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936710711] [2023-11-26 10:50:04,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:04,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:50:04,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:04,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:50:04,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:50:04,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1736 out of 1789 [2023-11-26 10:50:04,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1645 places, 1712 transitions, 3434 flow. Second operand has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:04,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:50:04,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1736 of 1789 [2023-11-26 10:50:04,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:50:06,140 INFO L124 PetriNetUnfolderBase]: 103/2209 cut-off events. [2023-11-26 10:50:06,140 INFO L125 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2023-11-26 10:50:06,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2244 conditions, 2209 events. 103/2209 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 11758 event pairs, 7 based on Foata normal form. 0/1788 useless extension candidates. Maximal degree in co-relation 2166. Up to 25 conditions per place. [2023-11-26 10:50:06,280 INFO L140 encePairwiseOnDemand]: 1786/1789 looper letters, 11 selfloop transitions, 2 changer transitions 0/1711 dead transitions. [2023-11-26 10:50:06,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1646 places, 1711 transitions, 3458 flow [2023-11-26 10:50:06,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:50:06,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:50:06,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5222 transitions. [2023-11-26 10:50:06,296 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9729830445313956 [2023-11-26 10:50:06,296 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5222 transitions. [2023-11-26 10:50:06,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5222 transitions. [2023-11-26 10:50:06,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:50:06,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5222 transitions. [2023-11-26 10:50:06,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1740.6666666666667) internal successors, (5222), 3 states have internal predecessors, (5222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:06,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:06,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:06,335 INFO L175 Difference]: Start difference. First operand has 1645 places, 1712 transitions, 3434 flow. Second operand 3 states and 5222 transitions. [2023-11-26 10:50:06,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1646 places, 1711 transitions, 3458 flow [2023-11-26 10:50:06,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1644 places, 1711 transitions, 3454 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:50:06,384 INFO L231 Difference]: Finished difference. Result has 1644 places, 1711 transitions, 3432 flow [2023-11-26 10:50:06,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3428, PETRI_DIFFERENCE_MINUEND_PLACES=1642, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1711, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1709, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3432, PETRI_PLACES=1644, PETRI_TRANSITIONS=1711} [2023-11-26 10:50:06,389 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -16 predicate places. [2023-11-26 10:50:06,389 INFO L495 AbstractCegarLoop]: Abstraction has has 1644 places, 1711 transitions, 3432 flow [2023-11-26 10:50:06,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1737.3333333333333) internal successors, (5212), 3 states have internal predecessors, (5212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:06,391 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:50:06,392 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:06,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:50:06,392 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-26 10:50:06,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:06,393 INFO L85 PathProgramCache]: Analyzing trace with hash -212333697, now seen corresponding path program 1 times [2023-11-26 10:50:06,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:06,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188384163] [2023-11-26 10:50:06,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:06,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:06,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:06,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:06,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188384163] [2023-11-26 10:50:06,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188384163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:06,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:06,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:06,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994116003] [2023-11-26 10:50:06,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:06,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:50:06,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:06,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:50:06,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:50:06,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1728 out of 1789 [2023-11-26 10:50:06,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1644 places, 1711 transitions, 3432 flow. Second operand has 3 states, 3 states have (on average 1729.3333333333333) internal successors, (5188), 3 states have internal predecessors, (5188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:06,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:50:06,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1728 of 1789 [2023-11-26 10:50:06,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:50:12,877 INFO L124 PetriNetUnfolderBase]: 505/9882 cut-off events. [2023-11-26 10:50:12,878 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-26 10:50:13,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9965 conditions, 9882 events. 505/9882 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 89687 event pairs, 18 based on Foata normal form. 0/7794 useless extension candidates. Maximal degree in co-relation 9879. Up to 56 conditions per place. [2023-11-26 10:50:13,425 INFO L140 encePairwiseOnDemand]: 1786/1789 looper letters, 19 selfloop transitions, 2 changer transitions 0/1710 dead transitions. [2023-11-26 10:50:13,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1645 places, 1710 transitions, 3472 flow [2023-11-26 10:50:13,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:50:13,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:50:13,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5206 transitions. [2023-11-26 10:50:13,435 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9700018632383082 [2023-11-26 10:50:13,435 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5206 transitions. [2023-11-26 10:50:13,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5206 transitions. [2023-11-26 10:50:13,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:50:13,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5206 transitions. [2023-11-26 10:50:13,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1735.3333333333333) internal successors, (5206), 3 states have internal predecessors, (5206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:13,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:13,455 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:13,455 INFO L175 Difference]: Start difference. First operand has 1644 places, 1711 transitions, 3432 flow. Second operand 3 states and 5206 transitions. [2023-11-26 10:50:13,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1645 places, 1710 transitions, 3472 flow [2023-11-26 10:50:13,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1643 places, 1710 transitions, 3468 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:50:13,495 INFO L231 Difference]: Finished difference. Result has 1643 places, 1710 transitions, 3430 flow [2023-11-26 10:50:13,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3426, PETRI_DIFFERENCE_MINUEND_PLACES=1641, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1710, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1708, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3430, PETRI_PLACES=1643, PETRI_TRANSITIONS=1710} [2023-11-26 10:50:13,499 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -17 predicate places. [2023-11-26 10:50:13,500 INFO L495 AbstractCegarLoop]: Abstraction has has 1643 places, 1710 transitions, 3430 flow [2023-11-26 10:50:13,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1729.3333333333333) internal successors, (5188), 3 states have internal predecessors, (5188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:13,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:50:13,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:13,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:50:13,502 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-26 10:50:13,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:13,502 INFO L85 PathProgramCache]: Analyzing trace with hash 476182430, now seen corresponding path program 1 times [2023-11-26 10:50:13,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:13,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717966588] [2023-11-26 10:50:13,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:13,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:13,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:13,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:13,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717966588] [2023-11-26 10:50:13,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717966588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:13,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:13,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:13,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523863842] [2023-11-26 10:50:13,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:13,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:50:13,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:13,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:50:13,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:50:13,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1723 out of 1789 [2023-11-26 10:50:13,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1643 places, 1710 transitions, 3430 flow. Second operand has 3 states, 3 states have (on average 1724.3333333333333) internal successors, (5173), 3 states have internal predecessors, (5173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:13,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:50:13,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1723 of 1789 [2023-11-26 10:50:13,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:50:23,596 INFO L124 PetriNetUnfolderBase]: 793/15329 cut-off events. [2023-11-26 10:50:23,596 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-26 10:50:24,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15453 conditions, 15329 events. 793/15329 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 155440 event pairs, 30 based on Foata normal form. 0/12064 useless extension candidates. Maximal degree in co-relation 15359. Up to 85 conditions per place. [2023-11-26 10:50:24,355 INFO L140 encePairwiseOnDemand]: 1786/1789 looper letters, 24 selfloop transitions, 2 changer transitions 0/1709 dead transitions. [2023-11-26 10:50:24,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1644 places, 1709 transitions, 3480 flow [2023-11-26 10:50:24,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:50:24,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:50:24,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5196 transitions. [2023-11-26 10:50:24,367 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9681386249301286 [2023-11-26 10:50:24,367 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5196 transitions. [2023-11-26 10:50:24,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5196 transitions. [2023-11-26 10:50:24,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:50:24,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5196 transitions. [2023-11-26 10:50:24,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1732.0) internal successors, (5196), 3 states have internal predecessors, (5196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:24,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:24,382 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:24,382 INFO L175 Difference]: Start difference. First operand has 1643 places, 1710 transitions, 3430 flow. Second operand 3 states and 5196 transitions. [2023-11-26 10:50:24,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1644 places, 1709 transitions, 3480 flow [2023-11-26 10:50:24,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1642 places, 1709 transitions, 3476 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:50:24,411 INFO L231 Difference]: Finished difference. Result has 1642 places, 1709 transitions, 3428 flow [2023-11-26 10:50:24,414 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3424, PETRI_DIFFERENCE_MINUEND_PLACES=1640, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1709, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1707, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3428, PETRI_PLACES=1642, PETRI_TRANSITIONS=1709} [2023-11-26 10:50:24,415 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -18 predicate places. [2023-11-26 10:50:24,415 INFO L495 AbstractCegarLoop]: Abstraction has has 1642 places, 1709 transitions, 3428 flow [2023-11-26 10:50:24,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1724.3333333333333) internal successors, (5173), 3 states have internal predecessors, (5173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:24,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:50:24,416 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:24,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:50:24,417 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-26 10:50:24,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:24,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1908729497, now seen corresponding path program 1 times [2023-11-26 10:50:24,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:24,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808394723] [2023-11-26 10:50:24,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:24,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:24,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:24,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:24,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808394723] [2023-11-26 10:50:24,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808394723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:24,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:24,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:24,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609676933] [2023-11-26 10:50:24,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:24,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:50:24,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:24,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:50:24,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:50:24,529 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1728 out of 1789 [2023-11-26 10:50:24,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1642 places, 1709 transitions, 3428 flow. Second operand has 3 states, 3 states have (on average 1729.3333333333333) internal successors, (5188), 3 states have internal predecessors, (5188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:24,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:50:24,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1728 of 1789 [2023-11-26 10:50:24,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:50:29,161 INFO L124 PetriNetUnfolderBase]: 298/5902 cut-off events. [2023-11-26 10:50:29,161 INFO L125 PetriNetUnfolderBase]: For 12/15 co-relation queries the response was YES. [2023-11-26 10:50:29,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5976 conditions, 5902 events. 298/5902 cut-off events. For 12/15 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 44507 event pairs, 18 based on Foata normal form. 0/4687 useless extension candidates. Maximal degree in co-relation 5874. Up to 56 conditions per place. [2023-11-26 10:50:29,625 INFO L140 encePairwiseOnDemand]: 1786/1789 looper letters, 19 selfloop transitions, 2 changer transitions 0/1708 dead transitions. [2023-11-26 10:50:29,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1643 places, 1708 transitions, 3468 flow [2023-11-26 10:50:29,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:50:29,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:50:29,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5206 transitions. [2023-11-26 10:50:29,636 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9700018632383082 [2023-11-26 10:50:29,636 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5206 transitions. [2023-11-26 10:50:29,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5206 transitions. [2023-11-26 10:50:29,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:50:29,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5206 transitions. [2023-11-26 10:50:29,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1735.3333333333333) internal successors, (5206), 3 states have internal predecessors, (5206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:29,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:29,655 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1789.0) internal successors, (7156), 4 states have internal predecessors, (7156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:29,655 INFO L175 Difference]: Start difference. First operand has 1642 places, 1709 transitions, 3428 flow. Second operand 3 states and 5206 transitions. [2023-11-26 10:50:29,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1643 places, 1708 transitions, 3468 flow [2023-11-26 10:50:29,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1641 places, 1708 transitions, 3464 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:50:29,698 INFO L231 Difference]: Finished difference. Result has 1641 places, 1708 transitions, 3426 flow [2023-11-26 10:50:29,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1789, PETRI_DIFFERENCE_MINUEND_FLOW=3422, PETRI_DIFFERENCE_MINUEND_PLACES=1639, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1708, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1706, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3426, PETRI_PLACES=1641, PETRI_TRANSITIONS=1708} [2023-11-26 10:50:29,702 INFO L281 CegarLoopForPetriNet]: 1660 programPoint places, -19 predicate places. [2023-11-26 10:50:29,703 INFO L495 AbstractCegarLoop]: Abstraction has has 1641 places, 1708 transitions, 3426 flow [2023-11-26 10:50:29,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1729.3333333333333) internal successors, (5188), 3 states have internal predecessors, (5188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:29,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:50:29,704 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:29,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:50:29,705 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-11-26 10:50:29,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:29,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1630514789, now seen corresponding path program 1 times [2023-11-26 10:50:29,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:29,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6072920] [2023-11-26 10:50:29,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:29,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:29,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:29,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:29,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:29,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6072920] [2023-11-26 10:50:29,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6072920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:29,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:29,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:29,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584675676] [2023-11-26 10:50:29,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:29,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:50:29,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:29,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:50:29,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:50:29,857 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1723 out of 1789 [2023-11-26 10:50:29,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1641 places, 1708 transitions, 3426 flow. Second operand has 3 states, 3 states have (on average 1724.3333333333333) internal successors, (5173), 3 states have internal predecessors, (5173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:29,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:50:29,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1723 of 1789 [2023-11-26 10:50:29,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand