./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_bf00ab63-fc78-49cd-a2a3-d60661078d7a/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf00ab63-fc78-49cd-a2a3-d60661078d7a/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf00ab63-fc78-49cd-a2a3-d60661078d7a/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf00ab63-fc78-49cd-a2a3-d60661078d7a/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf00ab63-fc78-49cd-a2a3-d60661078d7a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf00ab63-fc78-49cd-a2a3-d60661078d7a/bin/uautomizer-verify-uCwYo4JHxu --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 47fde0ba5912e0415b0c299af0f3ae7b3e6a5b956bf726bb77299079d74126b4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:39:15,846 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:39:15,915 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf00ab63-fc78-49cd-a2a3-d60661078d7a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:39:15,921 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:39:15,922 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:39:15,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:39:15,947 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:39:15,948 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:39:15,949 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:39:15,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:39:15,950 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:39:15,951 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:39:15,952 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:39:15,952 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:39:15,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:39:15,954 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:39:15,954 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:39:15,955 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:39:15,956 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:39:15,956 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:39:15,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:39:15,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:39:15,958 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:39:15,959 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:39:15,959 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:39:15,960 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:39:15,960 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:39:15,961 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:39:15,961 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:39:15,962 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:39:15,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:15,963 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:39:15,963 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:39:15,963 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:39:15,964 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:39:15,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:39:15,964 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:39:15,964 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:39:15,965 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:39:15,965 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:39:15,965 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:39:15,966 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_bf00ab63-fc78-49cd-a2a3-d60661078d7a/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf00ab63-fc78-49cd-a2a3-d60661078d7a/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47fde0ba5912e0415b0c299af0f3ae7b3e6a5b956bf726bb77299079d74126b4 [2023-11-19 07:39:16,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:39:16,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:39:16,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:39:16,334 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:39:16,335 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:39:16,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf00ab63-fc78-49cd-a2a3-d60661078d7a/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2023-11-19 07:39:19,539 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:39:19,763 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:39:19,763 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf00ab63-fc78-49cd-a2a3-d60661078d7a/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2023-11-19 07:39:19,773 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf00ab63-fc78-49cd-a2a3-d60661078d7a/bin/uautomizer-verify-uCwYo4JHxu/data/5af120417/cf9776f13f1943c4a8b2c546a3dfc368/FLAG8461ac669 [2023-11-19 07:39:19,790 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf00ab63-fc78-49cd-a2a3-d60661078d7a/bin/uautomizer-verify-uCwYo4JHxu/data/5af120417/cf9776f13f1943c4a8b2c546a3dfc368 [2023-11-19 07:39:19,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:39:19,795 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:39:19,796 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:19,797 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:39:19,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:39:19,804 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:19" (1/1) ... [2023-11-19 07:39:19,805 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5bb176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:19, skipping insertion in model container [2023-11-19 07:39:19,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:19" (1/1) ... [2023-11-19 07:39:19,836 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:39:20,152 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:20,164 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:39:20,226 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:20,236 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:39:20,236 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:39:20,254 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:39:20,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20 WrapperNode [2023-11-19 07:39:20,255 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:20,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:20,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:39:20,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:39:20,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2023-11-19 07:39:20,299 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2023-11-19 07:39:20,340 INFO L138 Inliner]: procedures = 27, calls = 76, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 274 [2023-11-19 07:39:20,341 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:20,342 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:39:20,342 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:39:20,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:39:20,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2023-11-19 07:39:20,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2023-11-19 07:39:20,362 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2023-11-19 07:39:20,362 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2023-11-19 07:39:20,410 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2023-11-19 07:39:20,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2023-11-19 07:39:20,420 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2023-11-19 07:39:20,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2023-11-19 07:39:20,437 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:39:20,441 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:39:20,442 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:39:20,442 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:39:20,443 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (1/1) ... [2023-11-19 07:39:20,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:20,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf00ab63-fc78-49cd-a2a3-d60661078d7a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:20,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf00ab63-fc78-49cd-a2a3-d60661078d7a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:20,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf00ab63-fc78-49cd-a2a3-d60661078d7a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:39:20,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:39:20,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:39:20,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:39:20,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:39:20,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:39:20,532 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:39:20,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:39:20,532 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:39:20,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 07:39:20,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 07:39:20,533 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-19 07:39:20,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-19 07:39:20,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:39:20,536 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-19 07:39:20,536 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-19 07:39:20,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:39:20,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:39:20,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:39:20,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:39:20,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:39:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:39:20,539 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:39:20,719 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:39:20,722 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:39:21,496 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:39:22,017 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:39:22,017 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-19 07:39:22,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:22 BoogieIcfgContainer [2023-11-19 07:39:22,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:39:22,032 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:39:22,033 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:39:22,036 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:39:22,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:39:19" (1/3) ... [2023-11-19 07:39:22,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795c234d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:22, skipping insertion in model container [2023-11-19 07:39:22,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:20" (2/3) ... [2023-11-19 07:39:22,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795c234d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:22, skipping insertion in model container [2023-11-19 07:39:22,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:22" (3/3) ... [2023-11-19 07:39:22,041 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2023-11-19 07:39:22,051 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:39:22,063 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:39:22,063 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2023-11-19 07:39:22,063 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:39:22,234 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-11-19 07:39:22,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 314 places, 329 transitions, 693 flow [2023-11-19 07:39:22,446 INFO L124 PetriNetUnfolderBase]: 31/324 cut-off events. [2023-11-19 07:39:22,447 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-19 07:39:22,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 324 events. 31/324 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 496 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 232. Up to 4 conditions per place. [2023-11-19 07:39:22,457 INFO L82 GeneralOperation]: Start removeDead. Operand has 314 places, 329 transitions, 693 flow [2023-11-19 07:39:22,475 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 283 places, 297 transitions, 624 flow [2023-11-19 07:39:22,480 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:39:22,496 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 283 places, 297 transitions, 624 flow [2023-11-19 07:39:22,500 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 283 places, 297 transitions, 624 flow [2023-11-19 07:39:22,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 283 places, 297 transitions, 624 flow [2023-11-19 07:39:22,608 INFO L124 PetriNetUnfolderBase]: 30/297 cut-off events. [2023-11-19 07:39:22,608 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-19 07:39:22,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 297 events. 30/297 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 507 event pairs, 0 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 232. Up to 4 conditions per place. [2023-11-19 07:39:22,627 INFO L119 LiptonReduction]: Number of co-enabled transitions 21450 [2023-11-19 07:39:37,011 INFO L134 LiptonReduction]: Checked pairs total: 92250 [2023-11-19 07:39:37,011 INFO L136 LiptonReduction]: Total number of compositions: 264 [2023-11-19 07:39:37,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:39:37,031 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;@37adcc7f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:39:37,032 INFO L358 AbstractCegarLoop]: Starting to check reachability of 100 error locations. [2023-11-19 07:39:37,033 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:39:37,034 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:39:37,034 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:39:37,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:37,035 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:39:37,035 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-19 07:39:37,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:37,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1639, now seen corresponding path program 1 times [2023-11-19 07:39:37,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:37,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687044834] [2023-11-19 07:39:37,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:37,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:37,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:37,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:37,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:37,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687044834] [2023-11-19 07:39:37,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687044834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:37,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:37,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:39:37,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802024651] [2023-11-19 07:39:37,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:37,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:39:37,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:37,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:39:37,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:39:37,213 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 593 [2023-11-19 07:39:37,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 122 transitions, 274 flow. Second operand has 2 states, 2 states have (on average 245.5) internal successors, (491), 2 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:37,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:37,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 593 [2023-11-19 07:39:37,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:39,009 INFO L124 PetriNetUnfolderBase]: 5386/8960 cut-off events. [2023-11-19 07:39:39,009 INFO L125 PetriNetUnfolderBase]: For 433/433 co-relation queries the response was YES. [2023-11-19 07:39:39,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16433 conditions, 8960 events. 5386/8960 cut-off events. For 433/433 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 57066 event pairs, 3905 based on Foata normal form. 1481/9392 useless extension candidates. Maximal degree in co-relation 14119. Up to 6836 conditions per place. [2023-11-19 07:39:39,108 INFO L140 encePairwiseOnDemand]: 544/593 looper letters, 35 selfloop transitions, 0 changer transitions 3/73 dead transitions. [2023-11-19 07:39:39,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 73 transitions, 252 flow [2023-11-19 07:39:39,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:39:39,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:39:39,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 577 transitions. [2023-11-19 07:39:39,132 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48650927487352447 [2023-11-19 07:39:39,133 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 577 transitions. [2023-11-19 07:39:39,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 577 transitions. [2023-11-19 07:39:39,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:39,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 577 transitions. [2023-11-19 07:39:39,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 288.5) internal successors, (577), 2 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:39,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 593.0) internal successors, (1779), 3 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:39,155 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 593.0) internal successors, (1779), 3 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:39,157 INFO L175 Difference]: Start difference. First operand has 129 places, 122 transitions, 274 flow. Second operand 2 states and 577 transitions. [2023-11-19 07:39:39,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 73 transitions, 252 flow [2023-11-19 07:39:39,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 73 transitions, 232 flow, removed 0 selfloop flow, removed 10 redundant places. [2023-11-19 07:39:39,190 INFO L231 Difference]: Finished difference. Result has 75 places, 70 transitions, 148 flow [2023-11-19 07:39:39,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=593, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=148, PETRI_PLACES=75, PETRI_TRANSITIONS=70} [2023-11-19 07:39:39,197 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -54 predicate places. [2023-11-19 07:39:39,197 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 70 transitions, 148 flow [2023-11-19 07:39:39,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 245.5) internal successors, (491), 2 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:39,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:39,199 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:39,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:39:39,200 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-19 07:39:39,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:39,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1101551577, now seen corresponding path program 1 times [2023-11-19 07:39:39,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:39,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049606116] [2023-11-19 07:39:39,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:39,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:39,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:39,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:39,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049606116] [2023-11-19 07:39:39,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049606116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:39,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:39,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:39:39,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94078900] [2023-11-19 07:39:39,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:39,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:39,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:39,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:39,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:39,494 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 593 [2023-11-19 07:39:39,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 70 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:39,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:39,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 593 [2023-11-19 07:39:39,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:44,787 INFO L124 PetriNetUnfolderBase]: 25218/37184 cut-off events. [2023-11-19 07:39:44,787 INFO L125 PetriNetUnfolderBase]: For 360/360 co-relation queries the response was YES. [2023-11-19 07:39:44,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70094 conditions, 37184 events. 25218/37184 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 1048. Compared 228246 event pairs, 20655 based on Foata normal form. 0/31511 useless extension candidates. Maximal degree in co-relation 70091. Up to 31784 conditions per place. [2023-11-19 07:39:45,059 INFO L140 encePairwiseOnDemand]: 588/593 looper letters, 41 selfloop transitions, 1 changer transitions 0/66 dead transitions. [2023-11-19 07:39:45,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 66 transitions, 224 flow [2023-11-19 07:39:45,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:45,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:39:45,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 724 transitions. [2023-11-19 07:39:45,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4069702079820124 [2023-11-19 07:39:45,068 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 724 transitions. [2023-11-19 07:39:45,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 724 transitions. [2023-11-19 07:39:45,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:45,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 724 transitions. [2023-11-19 07:39:45,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:45,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 593.0) internal successors, (2372), 4 states have internal predecessors, (2372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:45,082 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 593.0) internal successors, (2372), 4 states have internal predecessors, (2372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:45,090 INFO L175 Difference]: Start difference. First operand has 75 places, 70 transitions, 148 flow. Second operand 3 states and 724 transitions. [2023-11-19 07:39:45,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 66 transitions, 224 flow [2023-11-19 07:39:45,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 66 transitions, 224 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:39:45,095 INFO L231 Difference]: Finished difference. Result has 70 places, 66 transitions, 142 flow [2023-11-19 07:39:45,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=593, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=70, PETRI_TRANSITIONS=66} [2023-11-19 07:39:45,097 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -59 predicate places. [2023-11-19 07:39:45,097 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 142 flow [2023-11-19 07:39:45,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:45,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:45,098 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:45,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:39:45,099 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-19 07:39:45,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:45,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1881404252, now seen corresponding path program 1 times [2023-11-19 07:39:45,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:45,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662768649] [2023-11-19 07:39:45,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:45,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:45,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:45,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:45,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662768649] [2023-11-19 07:39:45,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662768649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:45,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:45,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:39:45,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911072714] [2023-11-19 07:39:45,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:45,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:45,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:45,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:45,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:45,413 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 593 [2023-11-19 07:39:45,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:45,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:45,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 593 [2023-11-19 07:39:45,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:46,628 INFO L124 PetriNetUnfolderBase]: 5384/8797 cut-off events. [2023-11-19 07:39:46,628 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2023-11-19 07:39:46,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15897 conditions, 8797 events. 5384/8797 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 382. Compared 54487 event pairs, 3903 based on Foata normal form. 0/7903 useless extension candidates. Maximal degree in co-relation 15893. Up to 6829 conditions per place. [2023-11-19 07:39:46,681 INFO L140 encePairwiseOnDemand]: 590/593 looper letters, 34 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2023-11-19 07:39:46,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 67 transitions, 216 flow [2023-11-19 07:39:46,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:46,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:39:46,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 754 transitions. [2023-11-19 07:39:46,685 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4238336143901068 [2023-11-19 07:39:46,685 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 754 transitions. [2023-11-19 07:39:46,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 754 transitions. [2023-11-19 07:39:46,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:46,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 754 transitions. [2023-11-19 07:39:46,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.33333333333334) internal successors, (754), 3 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:46,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 593.0) internal successors, (2372), 4 states have internal predecessors, (2372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:46,696 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 593.0) internal successors, (2372), 4 states have internal predecessors, (2372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:46,696 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 142 flow. Second operand 3 states and 754 transitions. [2023-11-19 07:39:46,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 67 transitions, 216 flow [2023-11-19 07:39:46,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 67 transitions, 215 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:39:46,699 INFO L231 Difference]: Finished difference. Result has 72 places, 67 transitions, 153 flow [2023-11-19 07:39:46,699 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=593, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=72, PETRI_TRANSITIONS=67} [2023-11-19 07:39:46,700 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -57 predicate places. [2023-11-19 07:39:46,700 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 67 transitions, 153 flow [2023-11-19 07:39:46,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:46,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:46,701 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:46,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:39:46,702 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-19 07:39:46,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:46,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1395277938, now seen corresponding path program 1 times [2023-11-19 07:39:46,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:46,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247884359] [2023-11-19 07:39:46,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:46,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:47,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:39:47,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:47,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247884359] [2023-11-19 07:39:47,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247884359] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:47,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:47,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:39:47,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85155596] [2023-11-19 07:39:47,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:47,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:39:47,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:47,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:39:47,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:39:47,610 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 593 [2023-11-19 07:39:47,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 67 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 234.0) internal successors, (1404), 6 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:47,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:47,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 593 [2023-11-19 07:39:47,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:52,132 INFO L124 PetriNetUnfolderBase]: 22350/30371 cut-off events. [2023-11-19 07:39:52,132 INFO L125 PetriNetUnfolderBase]: For 110/122 co-relation queries the response was YES. [2023-11-19 07:39:52,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58335 conditions, 30371 events. 22350/30371 cut-off events. For 110/122 co-relation queries the response was YES. Maximal size of possible extension queue 1122. Compared 171409 event pairs, 8777 based on Foata normal form. 6/28461 useless extension candidates. Maximal degree in co-relation 58330. Up to 17988 conditions per place. [2023-11-19 07:39:52,319 INFO L140 encePairwiseOnDemand]: 585/593 looper letters, 103 selfloop transitions, 13 changer transitions 0/141 dead transitions. [2023-11-19 07:39:52,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 141 transitions, 536 flow [2023-11-19 07:39:52,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:39:52,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:39:52,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1502 transitions. [2023-11-19 07:39:52,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42214727374929734 [2023-11-19 07:39:52,326 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1502 transitions. [2023-11-19 07:39:52,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1502 transitions. [2023-11-19 07:39:52,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:52,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1502 transitions. [2023-11-19 07:39:52,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 250.33333333333334) internal successors, (1502), 6 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:52,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 593.0) internal successors, (4151), 7 states have internal predecessors, (4151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:52,344 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 593.0) internal successors, (4151), 7 states have internal predecessors, (4151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:52,345 INFO L175 Difference]: Start difference. First operand has 72 places, 67 transitions, 153 flow. Second operand 6 states and 1502 transitions. [2023-11-19 07:39:52,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 141 transitions, 536 flow [2023-11-19 07:39:52,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 141 transitions, 532 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-19 07:39:52,350 INFO L231 Difference]: Finished difference. Result has 81 places, 79 transitions, 239 flow [2023-11-19 07:39:52,350 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=593, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=239, PETRI_PLACES=81, PETRI_TRANSITIONS=79} [2023-11-19 07:39:52,351 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -48 predicate places. [2023-11-19 07:39:52,352 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 79 transitions, 239 flow [2023-11-19 07:39:52,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 234.0) internal successors, (1404), 6 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:52,353 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:52,353 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] [2023-11-19 07:39:52,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:39:52,354 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-19 07:39:52,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:52,354 INFO L85 PathProgramCache]: Analyzing trace with hash 784024190, now seen corresponding path program 1 times [2023-11-19 07:39:52,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:52,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233604184] [2023-11-19 07:39:52,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:52,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:52,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:39:52,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:52,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233604184] [2023-11-19 07:39:52,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233604184] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:52,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:52,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:39:52,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166206992] [2023-11-19 07:39:52,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:52,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:39:52,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:52,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:39:52,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:39:53,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 593 [2023-11-19 07:39:53,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 79 transitions, 239 flow. Second operand has 9 states, 9 states have (on average 228.22222222222223) internal successors, (2054), 9 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:53,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:53,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 593 [2023-11-19 07:39:53,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:39:57,112 INFO L124 PetriNetUnfolderBase]: 20910/28931 cut-off events. [2023-11-19 07:39:57,112 INFO L125 PetriNetUnfolderBase]: For 5166/5166 co-relation queries the response was YES. [2023-11-19 07:39:57,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64709 conditions, 28931 events. 20910/28931 cut-off events. For 5166/5166 co-relation queries the response was YES. Maximal size of possible extension queue 1084. Compared 165212 event pairs, 3611 based on Foata normal form. 320/27775 useless extension candidates. Maximal degree in co-relation 64700. Up to 9002 conditions per place. [2023-11-19 07:39:57,311 INFO L140 encePairwiseOnDemand]: 586/593 looper letters, 108 selfloop transitions, 9 changer transitions 0/142 dead transitions. [2023-11-19 07:39:57,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 142 transitions, 613 flow [2023-11-19 07:39:57,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:39:57,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 07:39:57,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1913 transitions. [2023-11-19 07:39:57,320 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4032462057335582 [2023-11-19 07:39:57,320 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1913 transitions. [2023-11-19 07:39:57,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1913 transitions. [2023-11-19 07:39:57,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:39:57,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1913 transitions. [2023-11-19 07:39:57,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 239.125) internal successors, (1913), 8 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:57,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 593.0) internal successors, (5337), 9 states have internal predecessors, (5337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:57,342 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 593.0) internal successors, (5337), 9 states have internal predecessors, (5337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:57,342 INFO L175 Difference]: Start difference. First operand has 81 places, 79 transitions, 239 flow. Second operand 8 states and 1913 transitions. [2023-11-19 07:39:57,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 142 transitions, 613 flow [2023-11-19 07:39:57,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 142 transitions, 609 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:39:57,588 INFO L231 Difference]: Finished difference. Result has 86 places, 78 transitions, 249 flow [2023-11-19 07:39:57,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=593, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=249, PETRI_PLACES=86, PETRI_TRANSITIONS=78} [2023-11-19 07:39:57,589 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -43 predicate places. [2023-11-19 07:39:57,590 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 78 transitions, 249 flow [2023-11-19 07:39:57,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 228.22222222222223) internal successors, (2054), 9 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:57,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:39:57,591 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] [2023-11-19 07:39:57,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:39:57,592 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-19 07:39:57,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:57,592 INFO L85 PathProgramCache]: Analyzing trace with hash 350309739, now seen corresponding path program 1 times [2023-11-19 07:39:57,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:57,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577008462] [2023-11-19 07:39:57,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:57,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:57,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:39:57,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:57,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577008462] [2023-11-19 07:39:57,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577008462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:57,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:57,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:57,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658229516] [2023-11-19 07:39:57,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:57,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:39:57,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:57,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:39:57,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:39:57,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 593 [2023-11-19 07:39:57,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 78 transitions, 249 flow. Second operand has 4 states, 4 states have (on average 243.5) internal successors, (974), 4 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:39:57,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:39:57,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 593 [2023-11-19 07:39:57,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:00,646 INFO L124 PetriNetUnfolderBase]: 17678/25709 cut-off events. [2023-11-19 07:40:00,646 INFO L125 PetriNetUnfolderBase]: For 8615/8615 co-relation queries the response was YES. [2023-11-19 07:40:00,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56471 conditions, 25709 events. 17678/25709 cut-off events. For 8615/8615 co-relation queries the response was YES. Maximal size of possible extension queue 1029. Compared 164240 event pairs, 8413 based on Foata normal form. 0/23260 useless extension candidates. Maximal degree in co-relation 56462. Up to 15947 conditions per place. [2023-11-19 07:40:00,945 INFO L140 encePairwiseOnDemand]: 589/593 looper letters, 71 selfloop transitions, 3 changer transitions 0/108 dead transitions. [2023-11-19 07:40:00,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 108 transitions, 495 flow [2023-11-19 07:40:00,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:40:00,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:40:00,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1014 transitions. [2023-11-19 07:40:00,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4274873524451939 [2023-11-19 07:40:00,953 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1014 transitions. [2023-11-19 07:40:00,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1014 transitions. [2023-11-19 07:40:00,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:00,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1014 transitions. [2023-11-19 07:40:00,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 253.5) internal successors, (1014), 4 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:00,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 593.0) internal successors, (2965), 5 states have internal predecessors, (2965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:00,969 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 593.0) internal successors, (2965), 5 states have internal predecessors, (2965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:00,969 INFO L175 Difference]: Start difference. First operand has 86 places, 78 transitions, 249 flow. Second operand 4 states and 1014 transitions. [2023-11-19 07:40:00,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 108 transitions, 495 flow [2023-11-19 07:40:01,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 108 transitions, 479 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-19 07:40:01,273 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 247 flow [2023-11-19 07:40:01,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=593, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=247, PETRI_PLACES=84, PETRI_TRANSITIONS=79} [2023-11-19 07:40:01,274 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -45 predicate places. [2023-11-19 07:40:01,274 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 247 flow [2023-11-19 07:40:01,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 243.5) internal successors, (974), 4 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:01,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:01,276 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:01,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:40:01,276 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-19 07:40:01,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:01,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1999635025, now seen corresponding path program 1 times [2023-11-19 07:40:01,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:01,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579355664] [2023-11-19 07:40:01,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:01,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:01,910 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:40:01,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:01,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579355664] [2023-11-19 07:40:01,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579355664] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:01,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:01,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:40:01,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472423989] [2023-11-19 07:40:01,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:01,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:40:01,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:01,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:40:01,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:40:02,186 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 593 [2023-11-19 07:40:02,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 235.16666666666666) internal successors, (1411), 6 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:02,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:02,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 593 [2023-11-19 07:40:02,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:07,058 INFO L124 PetriNetUnfolderBase]: 21564/30505 cut-off events. [2023-11-19 07:40:07,059 INFO L125 PetriNetUnfolderBase]: For 12524/12536 co-relation queries the response was YES. [2023-11-19 07:40:07,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69991 conditions, 30505 events. 21564/30505 cut-off events. For 12524/12536 co-relation queries the response was YES. Maximal size of possible extension queue 1001. Compared 185123 event pairs, 12245 based on Foata normal form. 6/28457 useless extension candidates. Maximal degree in co-relation 69981. Up to 23696 conditions per place. [2023-11-19 07:40:07,297 INFO L140 encePairwiseOnDemand]: 585/593 looper letters, 90 selfloop transitions, 21 changer transitions 0/139 dead transitions. [2023-11-19 07:40:07,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 139 transitions, 631 flow [2023-11-19 07:40:07,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:40:07,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:40:07,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1480 transitions. [2023-11-19 07:40:07,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41596402473299604 [2023-11-19 07:40:07,304 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1480 transitions. [2023-11-19 07:40:07,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1480 transitions. [2023-11-19 07:40:07,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:07,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1480 transitions. [2023-11-19 07:40:07,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 246.66666666666666) internal successors, (1480), 6 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:07,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 593.0) internal successors, (4151), 7 states have internal predecessors, (4151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:07,318 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 593.0) internal successors, (4151), 7 states have internal predecessors, (4151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:07,318 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 247 flow. Second operand 6 states and 1480 transitions. [2023-11-19 07:40:07,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 139 transitions, 631 flow [2023-11-19 07:40:07,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 139 transitions, 627 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:40:07,409 INFO L231 Difference]: Finished difference. Result has 92 places, 99 transitions, 425 flow [2023-11-19 07:40:07,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=593, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=425, PETRI_PLACES=92, PETRI_TRANSITIONS=99} [2023-11-19 07:40:07,410 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -37 predicate places. [2023-11-19 07:40:07,410 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 99 transitions, 425 flow [2023-11-19 07:40:07,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 235.16666666666666) internal successors, (1411), 6 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:40:07,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:07,411 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:40:07,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:40:07,412 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-19 07:40:07,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:07,412 INFO L85 PathProgramCache]: Analyzing trace with hash -2080651361, now seen corresponding path program 1 times [2023-11-19 07:40:07,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:07,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470987877] [2023-11-19 07:40:07,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:07,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat