./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-20.i --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_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/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_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/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_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/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 fd7555e2b4abe63429c1be22a8b482f63bbf931ffcb895a158eac84b789e7c88 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:57:13,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:57:14,071 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:57:14,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:57:14,084 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:57:14,121 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:57:14,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:57:14,124 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:57:14,126 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:57:14,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:57:14,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:57:14,132 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:57:14,132 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:57:14,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:57:14,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:57:14,135 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:57:14,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:57:14,136 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:57:14,136 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:57:14,137 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:57:14,137 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:57:14,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:57:14,138 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:57:14,139 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:57:14,139 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:57:14,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:57:14,140 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:57:14,141 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:57:14,141 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:57:14,141 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:57:14,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:14,143 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:57:14,143 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:57:14,143 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:57:14,144 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:57:14,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:57:14,144 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:57:14,144 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:57:14,145 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:57:14,145 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:57:14,145 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:57:14,145 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_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd7555e2b4abe63429c1be22a8b482f63bbf931ffcb895a158eac84b789e7c88 [2023-11-19 07:57:14,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:57:14,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:57:14,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:57:14,432 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:57:14,433 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:57:14,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-deagle/reorder_c11_bad-20.i [2023-11-19 07:57:17,643 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:57:17,957 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:57:17,958 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/sv-benchmarks/c/pthread-deagle/reorder_c11_bad-20.i [2023-11-19 07:57:17,988 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/bin/uautomizer-verify-uCwYo4JHxu/data/ad3464323/b33e87b9d0f341ed86ff252efe7ec496/FLAG36fcf6a7b [2023-11-19 07:57:18,003 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/bin/uautomizer-verify-uCwYo4JHxu/data/ad3464323/b33e87b9d0f341ed86ff252efe7ec496 [2023-11-19 07:57:18,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:57:18,007 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:57:18,008 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:18,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:57:18,014 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:57:18,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:18" (1/1) ... [2023-11-19 07:57:18,016 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ceab80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:18, skipping insertion in model container [2023-11-19 07:57:18,016 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:18" (1/1) ... [2023-11-19 07:57:18,068 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:57:18,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:18,464 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:57:18,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:18,585 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:57:18,585 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:57:18,593 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:57:18,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:18 WrapperNode [2023-11-19 07:57:18,594 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:18,595 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:18,596 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:57:18,596 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:57:18,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:18" (1/1) ... [2023-11-19 07:57:18,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:18" (1/1) ... [2023-11-19 07:57:18,665 INFO L138 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 169 [2023-11-19 07:57:18,666 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:18,666 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:57:18,667 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:57:18,667 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:57:18,677 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:18" (1/1) ... [2023-11-19 07:57:18,677 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:18" (1/1) ... [2023-11-19 07:57:18,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:18" (1/1) ... [2023-11-19 07:57:18,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:18" (1/1) ... [2023-11-19 07:57:18,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:18" (1/1) ... [2023-11-19 07:57:18,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:18" (1/1) ... [2023-11-19 07:57:18,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:18" (1/1) ... [2023-11-19 07:57:18,742 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:18" (1/1) ... [2023-11-19 07:57:18,746 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:57:18,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:57:18,747 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:57:18,747 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:57:18,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:18" (1/1) ... [2023-11-19 07:57:18,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:18,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:18,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:57:18,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:57:18,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:57:18,835 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2023-11-19 07:57:18,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2023-11-19 07:57:18,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:57:18,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:57:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:57:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:57:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:57:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2023-11-19 07:57:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2023-11-19 07:57:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:57:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:57:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:57:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:57:18,842 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 07:57:18,973 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:57:18,975 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:57:19,299 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:57:19,344 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:57:19,344 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 07:57:19,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:19 BoogieIcfgContainer [2023-11-19 07:57:19,351 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:57:19,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:57:19,361 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:57:19,364 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:57:19,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:57:18" (1/3) ... [2023-11-19 07:57:19,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a8fedc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:19, skipping insertion in model container [2023-11-19 07:57:19,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:18" (2/3) ... [2023-11-19 07:57:19,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a8fedc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:19, skipping insertion in model container [2023-11-19 07:57:19,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:19" (3/3) ... [2023-11-19 07:57:19,367 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_c11_bad-20.i [2023-11-19 07:57:19,375 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:57:19,383 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:57:19,383 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-19 07:57:19,384 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:57:19,503 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-19 07:57:19,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 212 transitions, 444 flow [2023-11-19 07:57:19,772 INFO L124 PetriNetUnfolderBase]: 32/531 cut-off events. [2023-11-19 07:57:19,772 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-19 07:57:19,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 531 events. 32/531 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2192 event pairs, 0 based on Foata normal form. 0/418 useless extension candidates. Maximal degree in co-relation 253. Up to 8 conditions per place. [2023-11-19 07:57:19,785 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 212 transitions, 444 flow [2023-11-19 07:57:19,794 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 204 places, 212 transitions, 444 flow [2023-11-19 07:57:19,798 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:57:19,814 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 204 places, 212 transitions, 444 flow [2023-11-19 07:57:19,824 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 204 places, 212 transitions, 444 flow [2023-11-19 07:57:19,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 212 transitions, 444 flow [2023-11-19 07:57:19,942 INFO L124 PetriNetUnfolderBase]: 32/531 cut-off events. [2023-11-19 07:57:19,943 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-19 07:57:19,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 531 events. 32/531 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2192 event pairs, 0 based on Foata normal form. 0/418 useless extension candidates. Maximal degree in co-relation 253. Up to 8 conditions per place. [2023-11-19 07:57:19,960 INFO L119 LiptonReduction]: Number of co-enabled transitions 11242 [2023-11-19 07:57:24,743 INFO L134 LiptonReduction]: Checked pairs total: 28047 [2023-11-19 07:57:24,744 INFO L136 LiptonReduction]: Total number of compositions: 218 [2023-11-19 07:57:24,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:57:24,775 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;@d21d2eb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:57:24,775 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-11-19 07:57:24,777 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:57:24,777 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:57:24,777 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:57:24,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:24,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:57:24,779 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:57:24,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:24,786 INFO L85 PathProgramCache]: Analyzing trace with hash 787, now seen corresponding path program 1 times [2023-11-19 07:57:24,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:24,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520933834] [2023-11-19 07:57:24,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:24,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:24,925 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 07:57:24,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:24,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520933834] [2023-11-19 07:57:24,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520933834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:24,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:24,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:57:24,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991918838] [2023-11-19 07:57:24,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:24,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:57:24,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:24,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:57:24,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:57:24,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 430 [2023-11-19 07:57:24,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 67 transitions, 154 flow. Second operand has 2 states, 2 states have (on average 195.5) internal successors, (391), 2 states have internal predecessors, (391), 0 states have call successors, (0), 0 states 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 07:57:24,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:24,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 430 [2023-11-19 07:57:24,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:25,185 INFO L124 PetriNetUnfolderBase]: 406/911 cut-off events. [2023-11-19 07:57:25,185 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-19 07:57:25,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1640 conditions, 911 events. 406/911 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 5421 event pairs, 314 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 1199. Up to 692 conditions per place. [2023-11-19 07:57:25,193 INFO L140 encePairwiseOnDemand]: 406/430 looper letters, 27 selfloop transitions, 0 changer transitions 2/43 dead transitions. [2023-11-19 07:57:25,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 43 transitions, 164 flow [2023-11-19 07:57:25,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:57:25,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:57:25,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 443 transitions. [2023-11-19 07:57:25,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5151162790697674 [2023-11-19 07:57:25,212 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 443 transitions. [2023-11-19 07:57:25,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 443 transitions. [2023-11-19 07:57:25,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:25,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 443 transitions. [2023-11-19 07:57:25,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 221.5) internal successors, (443), 2 states have internal predecessors, (443), 0 states have call successors, (0), 0 states 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 07:57:25,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 430.0) internal successors, (1290), 3 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states 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 07:57:25,230 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 430.0) internal successors, (1290), 3 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states 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 07:57:25,232 INFO L175 Difference]: Start difference. First operand has 66 places, 67 transitions, 154 flow. Second operand 2 states and 443 transitions. [2023-11-19 07:57:25,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 43 transitions, 164 flow [2023-11-19 07:57:25,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 43 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:57:25,240 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 96 flow [2023-11-19 07:57:25,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=96, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2023-11-19 07:57:25,246 INFO L281 CegarLoopForPetriNet]: 66 programPoint places, -23 predicate places. [2023-11-19 07:57:25,247 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 96 flow [2023-11-19 07:57:25,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 195.5) internal successors, (391), 2 states have internal predecessors, (391), 0 states have call successors, (0), 0 states 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 07:57:25,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:25,248 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 07:57:25,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:57:25,249 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-19 07:57:25,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:25,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1787154027, now seen corresponding path program 1 times [2023-11-19 07:57:25,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:25,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540374207] [2023-11-19 07:57:25,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:25,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:57:25,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:57:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:57:25,362 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:57:25,362 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:57:25,364 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2023-11-19 07:57:25,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2023-11-19 07:57:25,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2023-11-19 07:57:25,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2023-11-19 07:57:25,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2023-11-19 07:57:25,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2023-11-19 07:57:25,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2023-11-19 07:57:25,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2023-11-19 07:57:25,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2023-11-19 07:57:25,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2023-11-19 07:57:25,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2023-11-19 07:57:25,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2023-11-19 07:57:25,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2023-11-19 07:57:25,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2023-11-19 07:57:25,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2023-11-19 07:57:25,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2023-11-19 07:57:25,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2023-11-19 07:57:25,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2023-11-19 07:57:25,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2023-11-19 07:57:25,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2023-11-19 07:57:25,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2023-11-19 07:57:25,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2023-11-19 07:57:25,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2023-11-19 07:57:25,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2023-11-19 07:57:25,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2023-11-19 07:57:25,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2023-11-19 07:57:25,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2023-11-19 07:57:25,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2023-11-19 07:57:25,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2023-11-19 07:57:25,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 36 remaining) [2023-11-19 07:57:25,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2023-11-19 07:57:25,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2023-11-19 07:57:25,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2023-11-19 07:57:25,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2023-11-19 07:57:25,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2023-11-19 07:57:25,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2023-11-19 07:57:25,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:57:25,397 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:57:25,401 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:57:25,402 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 07:57:25,461 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-19 07:57:25,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 267 transitions, 578 flow [2023-11-19 07:57:25,882 INFO L124 PetriNetUnfolderBase]: 131/1781 cut-off events. [2023-11-19 07:57:25,883 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-19 07:57:25,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1870 conditions, 1781 events. 131/1781 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 10685 event pairs, 2 based on Foata normal form. 0/1410 useless extension candidates. Maximal degree in co-relation 1002. Up to 32 conditions per place. [2023-11-19 07:57:25,893 INFO L82 GeneralOperation]: Start removeDead. Operand has 254 places, 267 transitions, 578 flow [2023-11-19 07:57:25,912 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 267 transitions, 578 flow [2023-11-19 07:57:25,912 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:57:25,912 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 267 transitions, 578 flow [2023-11-19 07:57:25,913 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 267 transitions, 578 flow [2023-11-19 07:57:25,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 267 transitions, 578 flow [2023-11-19 07:57:26,291 INFO L124 PetriNetUnfolderBase]: 131/1781 cut-off events. [2023-11-19 07:57:26,291 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-19 07:57:26,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1870 conditions, 1781 events. 131/1781 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 10685 event pairs, 2 based on Foata normal form. 0/1410 useless extension candidates. Maximal degree in co-relation 1002. Up to 32 conditions per place. [2023-11-19 07:57:26,359 INFO L119 LiptonReduction]: Number of co-enabled transitions 28196 [2023-11-19 07:57:31,384 INFO L134 LiptonReduction]: Checked pairs total: 87271 [2023-11-19 07:57:31,384 INFO L136 LiptonReduction]: Total number of compositions: 253 [2023-11-19 07:57:31,386 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:57:31,387 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;@d21d2eb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:57:31,387 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2023-11-19 07:57:31,388 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:57:31,389 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-19 07:57:31,389 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:57:31,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:31,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:57:31,389 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-11-19 07:57:31,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:31,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1355, now seen corresponding path program 1 times [2023-11-19 07:57:31,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:31,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351115200] [2023-11-19 07:57:31,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:31,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:31,405 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 07:57:31,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:31,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351115200] [2023-11-19 07:57:31,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351115200] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:31,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:31,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:57:31,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714540723] [2023-11-19 07:57:31,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:31,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:57:31,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:31,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:57:31,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:57:31,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 520 [2023-11-19 07:57:31,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 97 transitions, 238 flow. Second operand has 2 states, 2 states have (on average 237.5) internal successors, (475), 2 states have internal predecessors, (475), 0 states have call successors, (0), 0 states 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 07:57:31,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:31,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 520 [2023-11-19 07:57:31,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:37,036 INFO L124 PetriNetUnfolderBase]: 26035/44755 cut-off events. [2023-11-19 07:57:37,036 INFO L125 PetriNetUnfolderBase]: For 3651/3651 co-relation queries the response was YES. [2023-11-19 07:57:37,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81176 conditions, 44755 events. 26035/44755 cut-off events. For 3651/3651 co-relation queries the response was YES. Maximal size of possible extension queue 1953. Compared 396544 event pairs, 20553 based on Foata normal form. 0/35462 useless extension candidates. Maximal degree in co-relation 25326. Up to 34570 conditions per place. [2023-11-19 07:57:37,367 INFO L140 encePairwiseOnDemand]: 494/520 looper letters, 45 selfloop transitions, 0 changer transitions 0/71 dead transitions. [2023-11-19 07:57:37,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 71 transitions, 276 flow [2023-11-19 07:57:37,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:57:37,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:57:37,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 545 transitions. [2023-11-19 07:57:37,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5240384615384616 [2023-11-19 07:57:37,373 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 545 transitions. [2023-11-19 07:57:37,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 545 transitions. [2023-11-19 07:57:37,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:37,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 545 transitions. [2023-11-19 07:57:37,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 272.5) internal successors, (545), 2 states have internal predecessors, (545), 0 states have call successors, (0), 0 states 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 07:57:37,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 520.0) internal successors, (1560), 3 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states 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 07:57:37,386 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 520.0) internal successors, (1560), 3 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states 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 07:57:37,386 INFO L175 Difference]: Start difference. First operand has 94 places, 97 transitions, 238 flow. Second operand 2 states and 545 transitions. [2023-11-19 07:57:37,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 71 transitions, 276 flow [2023-11-19 07:57:37,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 71 transitions, 276 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:57:37,396 INFO L231 Difference]: Finished difference. Result has 69 places, 71 transitions, 186 flow [2023-11-19 07:57:37,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=186, PETRI_PLACES=69, PETRI_TRANSITIONS=71} [2023-11-19 07:57:37,398 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, -25 predicate places. [2023-11-19 07:57:37,398 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 71 transitions, 186 flow [2023-11-19 07:57:37,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 237.5) internal successors, (475), 2 states have internal predecessors, (475), 0 states have call successors, (0), 0 states 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 07:57:37,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:37,399 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:57:37,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:57:37,399 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-11-19 07:57:37,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:37,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1373669774, now seen corresponding path program 1 times [2023-11-19 07:57:37,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:37,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578541380] [2023-11-19 07:57:37,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:37,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:37,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:37,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:37,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578541380] [2023-11-19 07:57:37,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578541380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:37,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:37,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:57:37,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680011276] [2023-11-19 07:57:37,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:37,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:37,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:37,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:37,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:57:37,613 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 520 [2023-11-19 07:57:37,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 71 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 0 states have call successors, (0), 0 states 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 07:57:37,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:37,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 520 [2023-11-19 07:57:37,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:40,461 INFO L124 PetriNetUnfolderBase]: 20024/32806 cut-off events. [2023-11-19 07:57:40,461 INFO L125 PetriNetUnfolderBase]: For 1914/1914 co-relation queries the response was YES. [2023-11-19 07:57:40,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61597 conditions, 32806 events. 20024/32806 cut-off events. For 1914/1914 co-relation queries the response was YES. Maximal size of possible extension queue 1220. Compared 263458 event pairs, 7804 based on Foata normal form. 0/27432 useless extension candidates. Maximal degree in co-relation 61590. Up to 14349 conditions per place. [2023-11-19 07:57:40,636 INFO L140 encePairwiseOnDemand]: 511/520 looper letters, 73 selfloop transitions, 8 changer transitions 0/107 dead transitions. [2023-11-19 07:57:40,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 107 transitions, 444 flow [2023-11-19 07:57:40,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:40,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:57:40,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 757 transitions. [2023-11-19 07:57:40,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48525641025641025 [2023-11-19 07:57:40,641 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 757 transitions. [2023-11-19 07:57:40,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 757 transitions. [2023-11-19 07:57:40,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:40,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 757 transitions. [2023-11-19 07:57:40,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 252.33333333333334) internal successors, (757), 3 states have internal predecessors, (757), 0 states have call successors, (0), 0 states 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 07:57:40,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 0 states have call successors, (0), 0 states 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 07:57:40,651 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 0 states have call successors, (0), 0 states 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 07:57:40,651 INFO L175 Difference]: Start difference. First operand has 69 places, 71 transitions, 186 flow. Second operand 3 states and 757 transitions. [2023-11-19 07:57:40,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 107 transitions, 444 flow [2023-11-19 07:57:40,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 107 transitions, 444 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:57:40,659 INFO L231 Difference]: Finished difference. Result has 72 places, 75 transitions, 228 flow [2023-11-19 07:57:40,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=72, PETRI_TRANSITIONS=75} [2023-11-19 07:57:40,663 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, -22 predicate places. [2023-11-19 07:57:40,663 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 75 transitions, 228 flow [2023-11-19 07:57:40,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 0 states have call successors, (0), 0 states 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 07:57:40,664 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:40,664 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:40,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:57:40,665 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-11-19 07:57:40,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:40,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1834262110, now seen corresponding path program 1 times [2023-11-19 07:57:40,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:40,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925188670] [2023-11-19 07:57:40,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:40,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:40,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:57:40,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:40,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925188670] [2023-11-19 07:57:40,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925188670] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:57:40,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314452933] [2023-11-19 07:57:40,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:40,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:40,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:40,766 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:57:40,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:57:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:40,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:57:40,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:57:40,895 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 07:57:40,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:57:40,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314452933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:40,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:57:40,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-11-19 07:57:40,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349632994] [2023-11-19 07:57:40,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:40,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:57:40,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:40,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:57:40,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:40,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 520 [2023-11-19 07:57:40,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 75 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states 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 07:57:40,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:57:40,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 520 [2023-11-19 07:57:40,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:57:51,265 INFO L124 PetriNetUnfolderBase]: 74614/116452 cut-off events. [2023-11-19 07:57:51,265 INFO L125 PetriNetUnfolderBase]: For 26689/26689 co-relation queries the response was YES. [2023-11-19 07:57:51,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239390 conditions, 116452 events. 74614/116452 cut-off events. For 26689/26689 co-relation queries the response was YES. Maximal size of possible extension queue 3512. Compared 989624 event pairs, 24288 based on Foata normal form. 0/102029 useless extension candidates. Maximal degree in co-relation 239381. Up to 53030 conditions per place. [2023-11-19 07:57:52,180 INFO L140 encePairwiseOnDemand]: 506/520 looper letters, 92 selfloop transitions, 10 changer transitions 0/120 dead transitions. [2023-11-19 07:57:52,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 120 transitions, 574 flow [2023-11-19 07:57:52,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:57:52,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:57:52,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 774 transitions. [2023-11-19 07:57:52,185 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49615384615384617 [2023-11-19 07:57:52,185 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 774 transitions. [2023-11-19 07:57:52,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 774 transitions. [2023-11-19 07:57:52,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:57:52,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 774 transitions. [2023-11-19 07:57:52,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 0 states have call successors, (0), 0 states 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 07:57:52,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 0 states have call successors, (0), 0 states 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 07:57:52,196 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 0 states have call successors, (0), 0 states 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 07:57:52,196 INFO L175 Difference]: Start difference. First operand has 72 places, 75 transitions, 228 flow. Second operand 3 states and 774 transitions. [2023-11-19 07:57:52,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 120 transitions, 574 flow [2023-11-19 07:57:52,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 120 transitions, 561 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:57:52,263 INFO L231 Difference]: Finished difference. Result has 75 places, 85 transitions, 308 flow [2023-11-19 07:57:52,264 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=75, PETRI_TRANSITIONS=85} [2023-11-19 07:57:52,265 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, -19 predicate places. [2023-11-19 07:57:52,266 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 85 transitions, 308 flow [2023-11-19 07:57:52,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states 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 07:57:52,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:57:52,267 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-19 07:57:52,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:57:52,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b57d8d-ced8-41be-bd5a-a84628f9afe1/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:57:52,483 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2023-11-19 07:57:52,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:52,484 INFO L85 PathProgramCache]: Analyzing trace with hash -13519377, now seen corresponding path program 1 times [2023-11-19 07:57:52,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:52,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064188631] [2023-11-19 07:57:52,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:52,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:57:52,518 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:57:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:57:52,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:57:52,543 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:57:52,543 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 42 remaining) [2023-11-19 07:57:52,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (40 of 42 remaining) [2023-11-19 07:57:52,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (39 of 42 remaining) [2023-11-19 07:57:52,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (38 of 42 remaining) [2023-11-19 07:57:52,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (37 of 42 remaining) [2023-11-19 07:57:52,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (36 of 42 remaining) [2023-11-19 07:57:52,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (35 of 42 remaining) [2023-11-19 07:57:52,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 42 remaining) [2023-11-19 07:57:52,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 42 remaining) [2023-11-19 07:57:52,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 42 remaining) [2023-11-19 07:57:52,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 42 remaining) [2023-11-19 07:57:52,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 42 remaining) [2023-11-19 07:57:52,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (29 of 42 remaining) [2023-11-19 07:57:52,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (28 of 42 remaining) [2023-11-19 07:57:52,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (27 of 42 remaining) [2023-11-19 07:57:52,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 42 remaining) [2023-11-19 07:57:52,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (25 of 42 remaining) [2023-11-19 07:57:52,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (24 of 42 remaining) [2023-11-19 07:57:52,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 42 remaining) [2023-11-19 07:57:52,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (22 of 42 remaining) [2023-11-19 07:57:52,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (21 of 42 remaining) [2023-11-19 07:57:52,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (20 of 42 remaining) [2023-11-19 07:57:52,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (19 of 42 remaining) [2023-11-19 07:57:52,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (18 of 42 remaining) [2023-11-19 07:57:52,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (17 of 42 remaining) [2023-11-19 07:57:52,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (16 of 42 remaining) [2023-11-19 07:57:52,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (15 of 42 remaining) [2023-11-19 07:57:52,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (14 of 42 remaining) [2023-11-19 07:57:52,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (13 of 42 remaining) [2023-11-19 07:57:52,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 42 remaining) [2023-11-19 07:57:52,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (11 of 42 remaining) [2023-11-19 07:57:52,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (10 of 42 remaining) [2023-11-19 07:57:52,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (9 of 42 remaining) [2023-11-19 07:57:52,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (8 of 42 remaining) [2023-11-19 07:57:52,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 42 remaining) [2023-11-19 07:57:52,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 42 remaining) [2023-11-19 07:57:52,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 42 remaining) [2023-11-19 07:57:52,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 42 remaining) [2023-11-19 07:57:52,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 42 remaining) [2023-11-19 07:57:52,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 42 remaining) [2023-11-19 07:57:52,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 42 remaining) [2023-11-19 07:57:52,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 42 remaining) [2023-11-19 07:57:52,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:57:52,552 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 07:57:52,553 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:57:52,553 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-19 07:57:52,615 INFO L144 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2023-11-19 07:57:52,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 304 places, 322 transitions, 716 flow [2023-11-19 07:57:54,182 INFO L124 PetriNetUnfolderBase]: 544/5963 cut-off events. [2023-11-19 07:57:54,182 INFO L125 PetriNetUnfolderBase]: For 419/419 co-relation queries the response was YES. [2023-11-19 07:57:54,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6399 conditions, 5963 events. 544/5963 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 48311 event pairs, 64 based on Foata normal form. 0/4762 useless extension candidates. Maximal degree in co-relation 3403. Up to 192 conditions per place. [2023-11-19 07:57:54,212 INFO L82 GeneralOperation]: Start removeDead. Operand has 304 places, 322 transitions, 716 flow [2023-11-19 07:57:54,284 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 304 places, 322 transitions, 716 flow [2023-11-19 07:57:54,285 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:57:54,285 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 304 places, 322 transitions, 716 flow [2023-11-19 07:57:54,285 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 304 places, 322 transitions, 716 flow [2023-11-19 07:57:54,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 304 places, 322 transitions, 716 flow [2023-11-19 07:57:55,564 INFO L124 PetriNetUnfolderBase]: 544/5963 cut-off events. [2023-11-19 07:57:55,564 INFO L125 PetriNetUnfolderBase]: For 419/419 co-relation queries the response was YES. [2023-11-19 07:57:55,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6399 conditions, 5963 events. 544/5963 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 48311 event pairs, 64 based on Foata normal form. 0/4762 useless extension candidates. Maximal degree in co-relation 3403. Up to 192 conditions per place. [2023-11-19 07:57:55,982 INFO L119 LiptonReduction]: Number of co-enabled transitions 50862 [2023-11-19 07:58:02,188 INFO L134 LiptonReduction]: Checked pairs total: 177371 [2023-11-19 07:58:02,189 INFO L136 LiptonReduction]: Total number of compositions: 294 [2023-11-19 07:58:02,191 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:58:02,191 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;@d21d2eb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:58:02,192 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2023-11-19 07:58:02,193 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:58:02,193 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-19 07:58:02,193 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:58:02,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:58:02,193 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:58:02,193 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-19 07:58:02,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:02,194 INFO L85 PathProgramCache]: Analyzing trace with hash 2022, now seen corresponding path program 1 times [2023-11-19 07:58:02,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:02,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708447186] [2023-11-19 07:58:02,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:02,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:02,201 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 07:58:02,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:02,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708447186] [2023-11-19 07:58:02,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708447186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:02,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:02,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:58:02,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669511116] [2023-11-19 07:58:02,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:02,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:58:02,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:02,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:58:02,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:58:02,204 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 616 [2023-11-19 07:58:02,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 125 transitions, 322 flow. Second operand has 2 states, 2 states have (on average 279.5) internal successors, (559), 2 states have internal predecessors, (559), 0 states have call successors, (0), 0 states 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 07:58:02,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:58:02,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 616 [2023-11-19 07:58:02,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand