./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3acc872b-8d23-4285-b98d-211dc46529a1/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3acc872b-8d23-4285-b98d-211dc46529a1/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3acc872b-8d23-4285-b98d-211dc46529a1/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3acc872b-8d23-4285-b98d-211dc46529a1/bin/uautomizer-verify-VRDe98Ueme/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_3acc872b-8d23-4285-b98d-211dc46529a1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3acc872b-8d23-4285-b98d-211dc46529a1/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 47fde0ba5912e0415b0c299af0f3ae7b3e6a5b956bf726bb77299079d74126b4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:41:46,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:41:46,102 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3acc872b-8d23-4285-b98d-211dc46529a1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:41:46,108 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:41:46,109 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:41:46,136 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:41:46,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:41:46,138 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:41:46,139 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:41:46,140 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:41:46,141 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:41:46,142 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:41:46,143 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:41:46,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:41:46,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:41:46,146 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:41:46,147 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:41:46,147 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:41:46,148 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:41:46,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:41:46,150 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:41:46,151 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:41:46,152 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:41:46,153 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:41:46,153 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:41:46,154 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:41:46,155 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:41:46,155 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:41:46,156 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:41:46,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:41:46,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:46,159 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:41:46,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:41:46,160 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:41:46,160 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:41:46,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:41:46,161 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:41:46,162 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:41:46,162 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:41:46,162 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:41:46,163 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:41:46,163 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_3acc872b-8d23-4285-b98d-211dc46529a1/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3acc872b-8d23-4285-b98d-211dc46529a1/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47fde0ba5912e0415b0c299af0f3ae7b3e6a5b956bf726bb77299079d74126b4 [2023-11-26 10:41:46,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:41:46,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:41:46,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:41:46,561 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:41:46,561 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:41:46,562 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3acc872b-8d23-4285-b98d-211dc46529a1/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2023-11-26 10:41:49,803 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:41:50,008 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:41:50,008 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3acc872b-8d23-4285-b98d-211dc46529a1/sv-benchmarks/c/weaver/popl20-min-max-inc-dec.wvr.c [2023-11-26 10:41:50,017 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3acc872b-8d23-4285-b98d-211dc46529a1/bin/uautomizer-verify-VRDe98Ueme/data/0de49d1b1/cb44e7861df5428aac9f8bab907410f7/FLAG98d70b5d8 [2023-11-26 10:41:50,033 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3acc872b-8d23-4285-b98d-211dc46529a1/bin/uautomizer-verify-VRDe98Ueme/data/0de49d1b1/cb44e7861df5428aac9f8bab907410f7 [2023-11-26 10:41:50,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:41:50,037 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:41:50,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:50,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:41:50,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:41:50,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:50" (1/1) ... [2023-11-26 10:41:50,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@528833e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:50, skipping insertion in model container [2023-11-26 10:41:50,050 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:50" (1/1) ... [2023-11-26 10:41:50,088 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:41:50,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:50,377 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:41:50,433 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:50,442 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:41:50,443 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:41:50,451 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:41:50,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:50 WrapperNode [2023-11-26 10:41:50,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:50,453 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:50,453 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:41:50,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:41:50,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:50" (1/1) ... [2023-11-26 10:41:50,482 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:50" (1/1) ... [2023-11-26 10:41:50,535 INFO L138 Inliner]: procedures = 27, calls = 76, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 274 [2023-11-26 10:41:50,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:50,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:41:50,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:41:50,537 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:41:50,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:50" (1/1) ... [2023-11-26 10:41:50,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:50" (1/1) ... [2023-11-26 10:41:50,557 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:50" (1/1) ... [2023-11-26 10:41:50,557 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:50" (1/1) ... [2023-11-26 10:41:50,593 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:50" (1/1) ... [2023-11-26 10:41:50,611 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:50" (1/1) ... [2023-11-26 10:41:50,624 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:50" (1/1) ... [2023-11-26 10:41:50,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:50" (1/1) ... [2023-11-26 10:41:50,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:41:50,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:41:50,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:41:50,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:41:50,636 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:50" (1/1) ... [2023-11-26 10:41:50,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:50,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3acc872b-8d23-4285-b98d-211dc46529a1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:50,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3acc872b-8d23-4285-b98d-211dc46529a1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:41:50,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3acc872b-8d23-4285-b98d-211dc46529a1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:41:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:41:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:41:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:41:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:41:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 10:41:50,722 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 10:41:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 10:41:50,723 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 10:41:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 10:41:50,723 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 10:41:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-26 10:41:50,724 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-26 10:41:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:41:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-26 10:41:50,726 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-26 10:41:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 10:41:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 10:41:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 10:41:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:41:50,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:41:50,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:41:50,730 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:41:50,923 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:41:50,926 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:41:51,765 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:41:52,216 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:41:52,216 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-26 10:41:52,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:52 BoogieIcfgContainer [2023-11-26 10:41:52,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:41:52,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:41:52,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:41:52,224 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:41:52,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:41:50" (1/3) ... [2023-11-26 10:41:52,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34745d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:52, skipping insertion in model container [2023-11-26 10:41:52,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:50" (2/3) ... [2023-11-26 10:41:52,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34745d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:52, skipping insertion in model container [2023-11-26 10:41:52,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:52" (3/3) ... [2023-11-26 10:41:52,227 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2023-11-26 10:41:52,237 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:41:52,249 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:41:52,249 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2023-11-26 10:41:52,249 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:41:52,377 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-11-26 10:41:52,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 314 places, 312 transitions, 659 flow [2023-11-26 10:41:52,602 INFO L124 PetriNetUnfolderBase]: 14/307 cut-off events. [2023-11-26 10:41:52,603 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-26 10:41:52,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 307 events. 14/307 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 478 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 228. Up to 2 conditions per place. [2023-11-26 10:41:52,620 INFO L82 GeneralOperation]: Start removeDead. Operand has 314 places, 312 transitions, 659 flow [2023-11-26 10:41:52,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 283 places, 280 transitions, 590 flow [2023-11-26 10:41:52,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:41:52,660 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;@48aca8d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:41:52,661 INFO L358 AbstractCegarLoop]: Starting to check reachability of 100 error locations. [2023-11-26 10:41:52,677 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:41:52,677 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2023-11-26 10:41:52,677 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:41:52,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:52,678 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] [2023-11-26 10:41:52,679 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)] === [2023-11-26 10:41:52,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:52,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1043652791, now seen corresponding path program 1 times [2023-11-26 10:41:52,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:52,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88791863] [2023-11-26 10:41:52,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:52,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:53,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:53,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:53,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88791863] [2023-11-26 10:41:53,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88791863] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:53,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:53,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:53,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307208040] [2023-11-26 10:41:53,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:53,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:53,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:53,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:53,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:53,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 312 [2023-11-26 10:41:53,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 280 transitions, 590 flow. Second operand has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:53,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:53,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 312 [2023-11-26 10:41:53,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:55,563 INFO L124 PetriNetUnfolderBase]: 2758/7702 cut-off events. [2023-11-26 10:41:55,563 INFO L125 PetriNetUnfolderBase]: For 682/682 co-relation queries the response was YES. [2023-11-26 10:41:55,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12089 conditions, 7702 events. 2758/7702 cut-off events. For 682/682 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 75030 event pairs, 2248 based on Foata normal form. 4/6858 useless extension candidates. Maximal degree in co-relation 11590. Up to 3600 conditions per place. [2023-11-26 10:41:55,711 INFO L140 encePairwiseOnDemand]: 263/312 looper letters, 28 selfloop transitions, 2 changer transitions 3/233 dead transitions. [2023-11-26 10:41:55,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 233 transitions, 556 flow [2023-11-26 10:41:55,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:55,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:41:55,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 773 transitions. [2023-11-26 10:41:55,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8258547008547008 [2023-11-26 10:41:55,731 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 773 transitions. [2023-11-26 10:41:55,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 773 transitions. [2023-11-26 10:41:55,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:55,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 773 transitions. [2023-11-26 10:41:55,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 257.6666666666667) internal successors, (773), 3 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:55,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:55,752 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:55,754 INFO L175 Difference]: Start difference. First operand has 283 places, 280 transitions, 590 flow. Second operand 3 states and 773 transitions. [2023-11-26 10:41:55,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 233 transitions, 556 flow [2023-11-26 10:41:55,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 233 transitions, 536 flow, removed 0 selfloop flow, removed 10 redundant places. [2023-11-26 10:41:55,769 INFO L231 Difference]: Finished difference. Result has 236 places, 230 transitions, 474 flow [2023-11-26 10:41:55,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=474, PETRI_PLACES=236, PETRI_TRANSITIONS=230} [2023-11-26 10:41:55,776 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -47 predicate places. [2023-11-26 10:41:55,776 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 230 transitions, 474 flow [2023-11-26 10:41:55,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:55,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:55,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:55,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:41:55,778 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-26 10:41:55,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:55,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1694198436, now seen corresponding path program 1 times [2023-11-26 10:41:55,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:55,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314241935] [2023-11-26 10:41:55,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:55,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:55,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:55,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:55,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314241935] [2023-11-26 10:41:55,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314241935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:55,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:55,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:55,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032432554] [2023-11-26 10:41:55,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:55,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:55,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:55,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:55,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:55,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 312 [2023-11-26 10:41:55,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 230 transitions, 474 flow. Second operand has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:55,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:55,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 312 [2023-11-26 10:41:55,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:59,284 INFO L124 PetriNetUnfolderBase]: 6997/15234 cut-off events. [2023-11-26 10:41:59,284 INFO L125 PetriNetUnfolderBase]: For 236/236 co-relation queries the response was YES. [2023-11-26 10:41:59,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25097 conditions, 15234 events. 6997/15234 cut-off events. For 236/236 co-relation queries the response was YES. Maximal size of possible extension queue 772. Compared 148437 event pairs, 5929 based on Foata normal form. 0/14388 useless extension candidates. Maximal degree in co-relation 25063. Up to 9094 conditions per place. [2023-11-26 10:41:59,511 INFO L140 encePairwiseOnDemand]: 305/312 looper letters, 31 selfloop transitions, 1 changer transitions 0/224 dead transitions. [2023-11-26 10:41:59,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 224 transitions, 526 flow [2023-11-26 10:41:59,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:59,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:41:59,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 716 transitions. [2023-11-26 10:41:59,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7649572649572649 [2023-11-26 10:41:59,516 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 716 transitions. [2023-11-26 10:41:59,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 716 transitions. [2023-11-26 10:41:59,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:59,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 716 transitions. [2023-11-26 10:41:59,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.66666666666666) internal successors, (716), 3 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:59,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:59,525 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:59,526 INFO L175 Difference]: Start difference. First operand has 236 places, 230 transitions, 474 flow. Second operand 3 states and 716 transitions. [2023-11-26 10:41:59,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 224 transitions, 526 flow [2023-11-26 10:41:59,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 224 transitions, 522 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:41:59,543 INFO L231 Difference]: Finished difference. Result has 227 places, 224 transitions, 460 flow [2023-11-26 10:41:59,544 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=227, PETRI_TRANSITIONS=224} [2023-11-26 10:41:59,545 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -56 predicate places. [2023-11-26 10:41:59,546 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 224 transitions, 460 flow [2023-11-26 10:41:59,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:59,548 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:59,549 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:59,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:41:59,555 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-26 10:41:59,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:59,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1807955111, now seen corresponding path program 1 times [2023-11-26 10:41:59,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:59,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29520127] [2023-11-26 10:41:59,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:59,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:00,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:00,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:00,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29520127] [2023-11-26 10:42:00,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29520127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:00,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:00,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:42:00,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005840559] [2023-11-26 10:42:00,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:00,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:42:00,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:00,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:42:00,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:42:00,829 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 312 [2023-11-26 10:42:00,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 224 transitions, 460 flow. Second operand has 6 states, 6 states have (on average 212.5) internal successors, (1275), 6 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:00,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:00,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 312 [2023-11-26 10:42:00,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:02,751 INFO L124 PetriNetUnfolderBase]: 2982/6410 cut-off events. [2023-11-26 10:42:02,751 INFO L125 PetriNetUnfolderBase]: For 49/112 co-relation queries the response was YES. [2023-11-26 10:42:02,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10452 conditions, 6410 events. 2982/6410 cut-off events. For 49/112 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 51859 event pairs, 2489 based on Foata normal form. 0/5753 useless extension candidates. Maximal degree in co-relation 10419. Up to 3917 conditions per place. [2023-11-26 10:42:02,834 INFO L140 encePairwiseOnDemand]: 306/312 looper letters, 47 selfloop transitions, 5 changer transitions 0/223 dead transitions. [2023-11-26 10:42:02,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 223 transitions, 562 flow [2023-11-26 10:42:02,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:42:02,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:42:02,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1319 transitions. [2023-11-26 10:42:02,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7045940170940171 [2023-11-26 10:42:02,840 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1319 transitions. [2023-11-26 10:42:02,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1319 transitions. [2023-11-26 10:42:02,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:02,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1319 transitions. [2023-11-26 10:42:02,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 219.83333333333334) internal successors, (1319), 6 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:02,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:02,853 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:02,853 INFO L175 Difference]: Start difference. First operand has 227 places, 224 transitions, 460 flow. Second operand 6 states and 1319 transitions. [2023-11-26 10:42:02,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 223 transitions, 562 flow [2023-11-26 10:42:02,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 223 transitions, 561 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:42:02,859 INFO L231 Difference]: Finished difference. Result has 230 places, 223 transitions, 467 flow [2023-11-26 10:42:02,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=467, PETRI_PLACES=230, PETRI_TRANSITIONS=223} [2023-11-26 10:42:02,862 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -53 predicate places. [2023-11-26 10:42:02,862 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 223 transitions, 467 flow [2023-11-26 10:42:02,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.5) internal successors, (1275), 6 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:02,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:02,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:02,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:42:02,864 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-26 10:42:02,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:02,865 INFO L85 PathProgramCache]: Analyzing trace with hash -749727835, now seen corresponding path program 1 times [2023-11-26 10:42:02,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:02,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443916956] [2023-11-26 10:42:02,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:02,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:02,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:02,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:02,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443916956] [2023-11-26 10:42:02,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443916956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:02,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:02,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:42:02,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332596230] [2023-11-26 10:42:02,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:02,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:42:02,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:02,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:42:02,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:02,952 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 312 [2023-11-26 10:42:02,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 223 transitions, 467 flow. Second operand has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:02,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:02,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 312 [2023-11-26 10:42:02,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:03,631 INFO L124 PetriNetUnfolderBase]: 743/2952 cut-off events. [2023-11-26 10:42:03,632 INFO L125 PetriNetUnfolderBase]: For 49/51 co-relation queries the response was YES. [2023-11-26 10:42:03,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4059 conditions, 2952 events. 743/2952 cut-off events. For 49/51 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 24725 event pairs, 597 based on Foata normal form. 0/2704 useless extension candidates. Maximal degree in co-relation 4041. Up to 980 conditions per place. [2023-11-26 10:42:03,670 INFO L140 encePairwiseOnDemand]: 309/312 looper letters, 22 selfloop transitions, 2 changer transitions 0/222 dead transitions. [2023-11-26 10:42:03,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 222 transitions, 513 flow [2023-11-26 10:42:03,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:42:03,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:42:03,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2023-11-26 10:42:03,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7895299145299145 [2023-11-26 10:42:03,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 739 transitions. [2023-11-26 10:42:03,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 739 transitions. [2023-11-26 10:42:03,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:03,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 739 transitions. [2023-11-26 10:42:03,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:03,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:03,683 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:03,683 INFO L175 Difference]: Start difference. First operand has 230 places, 223 transitions, 467 flow. Second operand 3 states and 739 transitions. [2023-11-26 10:42:03,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 222 transitions, 513 flow [2023-11-26 10:42:03,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 222 transitions, 503 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:42:03,690 INFO L231 Difference]: Finished difference. Result has 226 places, 222 transitions, 459 flow [2023-11-26 10:42:03,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=459, PETRI_PLACES=226, PETRI_TRANSITIONS=222} [2023-11-26 10:42:03,691 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -57 predicate places. [2023-11-26 10:42:03,692 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 222 transitions, 459 flow [2023-11-26 10:42:03,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:03,693 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:03,693 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:03,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:42:03,693 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)] === [2023-11-26 10:42:03,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:03,694 INFO L85 PathProgramCache]: Analyzing trace with hash -579479088, now seen corresponding path program 1 times [2023-11-26 10:42:03,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:03,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837016895] [2023-11-26 10:42:03,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:03,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:04,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:04,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:04,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837016895] [2023-11-26 10:42:04,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837016895] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:04,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:04,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:42:04,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069204379] [2023-11-26 10:42:04,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:04,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:42:04,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:04,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:42:04,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:42:04,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 312 [2023-11-26 10:42:04,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 222 transitions, 459 flow. Second operand has 6 states, 6 states have (on average 233.0) internal successors, (1398), 6 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:04,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:04,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 312 [2023-11-26 10:42:04,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:07,003 INFO L124 PetriNetUnfolderBase]: 5111/9548 cut-off events. [2023-11-26 10:42:07,004 INFO L125 PetriNetUnfolderBase]: For 56/58 co-relation queries the response was YES. [2023-11-26 10:42:07,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16254 conditions, 9548 events. 5111/9548 cut-off events. For 56/58 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 72666 event pairs, 1898 based on Foata normal form. 0/8780 useless extension candidates. Maximal degree in co-relation 16219. Up to 4472 conditions per place. [2023-11-26 10:42:07,154 INFO L140 encePairwiseOnDemand]: 304/312 looper letters, 63 selfloop transitions, 13 changer transitions 0/267 dead transitions. [2023-11-26 10:42:07,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 267 transitions, 706 flow [2023-11-26 10:42:07,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:42:07,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:42:07,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1463 transitions. [2023-11-26 10:42:07,161 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.781517094017094 [2023-11-26 10:42:07,161 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1463 transitions. [2023-11-26 10:42:07,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1463 transitions. [2023-11-26 10:42:07,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:07,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1463 transitions. [2023-11-26 10:42:07,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 243.83333333333334) internal successors, (1463), 6 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:07,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:07,176 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:07,177 INFO L175 Difference]: Start difference. First operand has 226 places, 222 transitions, 459 flow. Second operand 6 states and 1463 transitions. [2023-11-26 10:42:07,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 267 transitions, 706 flow [2023-11-26 10:42:07,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 267 transitions, 702 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:42:07,185 INFO L231 Difference]: Finished difference. Result has 234 places, 234 transitions, 545 flow [2023-11-26 10:42:07,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=545, PETRI_PLACES=234, PETRI_TRANSITIONS=234} [2023-11-26 10:42:07,187 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -49 predicate places. [2023-11-26 10:42:07,187 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 234 transitions, 545 flow [2023-11-26 10:42:07,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 233.0) internal successors, (1398), 6 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:07,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:07,189 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:07,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:42:07,189 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-26 10:42:07,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:07,190 INFO L85 PathProgramCache]: Analyzing trace with hash -834990245, now seen corresponding path program 1 times [2023-11-26 10:42:07,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:07,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386967585] [2023-11-26 10:42:07,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:07,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:07,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:07,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:07,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386967585] [2023-11-26 10:42:07,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386967585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:07,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:07,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:42:07,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091956900] [2023-11-26 10:42:07,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:07,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:42:07,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:07,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:42:07,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:42:07,710 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 312 [2023-11-26 10:42:07,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 234 transitions, 545 flow. Second operand has 7 states, 7 states have (on average 232.57142857142858) internal successors, (1628), 7 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:07,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:07,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 312 [2023-11-26 10:42:07,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:13,954 INFO L124 PetriNetUnfolderBase]: 13317/28427 cut-off events. [2023-11-26 10:42:13,954 INFO L125 PetriNetUnfolderBase]: For 13481/14581 co-relation queries the response was YES. [2023-11-26 10:42:14,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58315 conditions, 28427 events. 13317/28427 cut-off events. For 13481/14581 co-relation queries the response was YES. Maximal size of possible extension queue 1372. Compared 293307 event pairs, 7581 based on Foata normal form. 301/26916 useless extension candidates. Maximal degree in co-relation 58276. Up to 11963 conditions per place. [2023-11-26 10:42:14,344 INFO L140 encePairwiseOnDemand]: 299/312 looper letters, 73 selfloop transitions, 14 changer transitions 0/279 dead transitions. [2023-11-26 10:42:14,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 279 transitions, 859 flow [2023-11-26 10:42:14,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 10:42:14,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 10:42:14,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2372 transitions. [2023-11-26 10:42:14,352 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7602564102564102 [2023-11-26 10:42:14,352 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2372 transitions. [2023-11-26 10:42:14,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2372 transitions. [2023-11-26 10:42:14,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:14,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2372 transitions. [2023-11-26 10:42:14,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 237.2) internal successors, (2372), 10 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) [2023-11-26 10:42:14,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 312.0) internal successors, (3432), 11 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:14,377 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 312.0) internal successors, (3432), 11 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:14,377 INFO L175 Difference]: Start difference. First operand has 234 places, 234 transitions, 545 flow. Second operand 10 states and 2372 transitions. [2023-11-26 10:42:14,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 279 transitions, 859 flow [2023-11-26 10:42:14,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 279 transitions, 859 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:42:14,522 INFO L231 Difference]: Finished difference. Result has 247 places, 241 transitions, 611 flow [2023-11-26 10:42:14,523 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=611, PETRI_PLACES=247, PETRI_TRANSITIONS=241} [2023-11-26 10:42:14,526 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -36 predicate places. [2023-11-26 10:42:14,526 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 241 transitions, 611 flow [2023-11-26 10:42:14,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 232.57142857142858) internal successors, (1628), 7 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:14,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:14,528 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:14,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:42:14,528 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-26 10:42:14,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:14,529 INFO L85 PathProgramCache]: Analyzing trace with hash -796702111, now seen corresponding path program 1 times [2023-11-26 10:42:14,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:14,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705147128] [2023-11-26 10:42:14,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:14,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:14,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:14,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:14,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705147128] [2023-11-26 10:42:14,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705147128] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:14,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:14,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 10:42:14,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19296359] [2023-11-26 10:42:14,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:14,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:42:14,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:14,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:42:14,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 10:42:14,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 312 [2023-11-26 10:42:14,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 241 transitions, 611 flow. Second operand has 7 states, 7 states have (on average 232.57142857142858) internal successors, (1628), 7 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:14,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:14,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 312 [2023-11-26 10:42:14,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:18,912 INFO L124 PetriNetUnfolderBase]: 8786/17386 cut-off events. [2023-11-26 10:42:18,912 INFO L125 PetriNetUnfolderBase]: For 5676/7011 co-relation queries the response was YES. [2023-11-26 10:42:19,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34695 conditions, 17386 events. 8786/17386 cut-off events. For 5676/7011 co-relation queries the response was YES. Maximal size of possible extension queue 1135. Compared 160603 event pairs, 6247 based on Foata normal form. 60/16288 useless extension candidates. Maximal degree in co-relation 34648. Up to 10223 conditions per place. [2023-11-26 10:42:19,177 INFO L140 encePairwiseOnDemand]: 299/312 looper letters, 63 selfloop transitions, 14 changer transitions 0/271 dead transitions. [2023-11-26 10:42:19,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 271 transitions, 839 flow [2023-11-26 10:42:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 10:42:19,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 10:42:19,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2370 transitions. [2023-11-26 10:42:19,186 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7596153846153846 [2023-11-26 10:42:19,186 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2370 transitions. [2023-11-26 10:42:19,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2370 transitions. [2023-11-26 10:42:19,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:19,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2370 transitions. [2023-11-26 10:42:19,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 237.0) internal successors, (2370), 10 states have internal predecessors, (2370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:19,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 312.0) internal successors, (3432), 11 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:19,205 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 312.0) internal successors, (3432), 11 states have internal predecessors, (3432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:19,205 INFO L175 Difference]: Start difference. First operand has 247 places, 241 transitions, 611 flow. Second operand 10 states and 2370 transitions. [2023-11-26 10:42:19,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 271 transitions, 839 flow [2023-11-26 10:42:19,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 271 transitions, 835 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:42:19,231 INFO L231 Difference]: Finished difference. Result has 257 places, 243 transitions, 652 flow [2023-11-26 10:42:19,231 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=652, PETRI_PLACES=257, PETRI_TRANSITIONS=243} [2023-11-26 10:42:19,232 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -26 predicate places. [2023-11-26 10:42:19,232 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 243 transitions, 652 flow [2023-11-26 10:42:19,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 232.57142857142858) internal successors, (1628), 7 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:19,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:19,234 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:19,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:42:19,234 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)] === [2023-11-26 10:42:19,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:19,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1487521122, now seen corresponding path program 1 times [2023-11-26 10:42:19,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:19,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548586913] [2023-11-26 10:42:19,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:19,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:19,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:19,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:19,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548586913] [2023-11-26 10:42:19,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548586913] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:19,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:19,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:42:19,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940964022] [2023-11-26 10:42:19,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:19,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:42:19,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:19,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:42:19,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:42:20,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 312 [2023-11-26 10:42:20,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 243 transitions, 652 flow. Second operand has 6 states, 6 states have (on average 233.5) internal successors, (1401), 6 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:20,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:20,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 312 [2023-11-26 10:42:20,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:23,571 INFO L124 PetriNetUnfolderBase]: 5363/13285 cut-off events. [2023-11-26 10:42:23,572 INFO L125 PetriNetUnfolderBase]: For 6742/6959 co-relation queries the response was YES. [2023-11-26 10:42:23,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27098 conditions, 13285 events. 5363/13285 cut-off events. For 6742/6959 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 123834 event pairs, 2084 based on Foata normal form. 2/12528 useless extension candidates. Maximal degree in co-relation 27047. Up to 5770 conditions per place. [2023-11-26 10:42:23,824 INFO L140 encePairwiseOnDemand]: 304/312 looper letters, 58 selfloop transitions, 21 changer transitions 0/283 dead transitions. [2023-11-26 10:42:23,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 283 transitions, 942 flow [2023-11-26 10:42:23,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:42:23,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:42:23,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1450 transitions. [2023-11-26 10:42:23,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7745726495726496 [2023-11-26 10:42:23,832 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1450 transitions. [2023-11-26 10:42:23,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1450 transitions. [2023-11-26 10:42:23,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:23,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1450 transitions. [2023-11-26 10:42:23,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 241.66666666666666) internal successors, (1450), 6 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:23,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:23,860 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 312.0) internal successors, (2184), 7 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:23,860 INFO L175 Difference]: Start difference. First operand has 257 places, 243 transitions, 652 flow. Second operand 6 states and 1450 transitions. [2023-11-26 10:42:23,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 283 transitions, 942 flow [2023-11-26 10:42:23,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 283 transitions, 921 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-26 10:42:23,971 INFO L231 Difference]: Finished difference. Result has 260 places, 263 transitions, 821 flow [2023-11-26 10:42:23,972 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=821, PETRI_PLACES=260, PETRI_TRANSITIONS=263} [2023-11-26 10:42:23,976 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -23 predicate places. [2023-11-26 10:42:23,976 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 263 transitions, 821 flow [2023-11-26 10:42:23,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 233.5) internal successors, (1401), 6 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:23,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:23,978 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:23,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:42:23,978 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-26 10:42:23,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:23,979 INFO L85 PathProgramCache]: Analyzing trace with hash 2090708427, now seen corresponding path program 1 times [2023-11-26 10:42:23,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:23,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921158581] [2023-11-26 10:42:23,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:23,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:25,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 10:42:25,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:25,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921158581] [2023-11-26 10:42:25,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921158581] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:25,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:25,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 10:42:25,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573985382] [2023-11-26 10:42:25,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:25,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 10:42:25,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:25,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 10:42:25,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:42:26,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 312 [2023-11-26 10:42:26,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 263 transitions, 821 flow. Second operand has 13 states, 13 states have (on average 222.15384615384616) internal successors, (2888), 13 states have internal predecessors, (2888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:26,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:26,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 312 [2023-11-26 10:42:26,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:30,912 INFO L124 PetriNetUnfolderBase]: 6753/17767 cut-off events. [2023-11-26 10:42:30,912 INFO L125 PetriNetUnfolderBase]: For 11209/11789 co-relation queries the response was YES. [2023-11-26 10:42:31,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39262 conditions, 17767 events. 6753/17767 cut-off events. For 11209/11789 co-relation queries the response was YES. Maximal size of possible extension queue 685. Compared 180501 event pairs, 648 based on Foata normal form. 672/18243 useless extension candidates. Maximal degree in co-relation 39207. Up to 3774 conditions per place. [2023-11-26 10:42:31,189 INFO L140 encePairwiseOnDemand]: 298/312 looper letters, 89 selfloop transitions, 17 changer transitions 0/298 dead transitions. [2023-11-26 10:42:31,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 298 transitions, 1133 flow [2023-11-26 10:42:31,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 10:42:31,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-26 10:42:31,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3378 transitions. [2023-11-26 10:42:31,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7217948717948718 [2023-11-26 10:42:31,203 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3378 transitions. [2023-11-26 10:42:31,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3378 transitions. [2023-11-26 10:42:31,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:31,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3378 transitions. [2023-11-26 10:42:31,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 225.2) internal successors, (3378), 15 states have internal predecessors, (3378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:31,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 312.0) internal successors, (4992), 16 states have internal predecessors, (4992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:31,238 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 312.0) internal successors, (4992), 16 states have internal predecessors, (4992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:31,238 INFO L175 Difference]: Start difference. First operand has 260 places, 263 transitions, 821 flow. Second operand 15 states and 3378 transitions. [2023-11-26 10:42:31,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 298 transitions, 1133 flow [2023-11-26 10:42:31,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 298 transitions, 1121 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:42:31,692 INFO L231 Difference]: Finished difference. Result has 272 places, 262 transitions, 839 flow [2023-11-26 10:42:31,692 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=312, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=839, PETRI_PLACES=272, PETRI_TRANSITIONS=262} [2023-11-26 10:42:31,693 INFO L281 CegarLoopForPetriNet]: 283 programPoint places, -11 predicate places. [2023-11-26 10:42:31,693 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 262 transitions, 839 flow [2023-11-26 10:42:31,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 222.15384615384616) internal successors, (2888), 13 states have internal predecessors, (2888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:31,694 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:31,694 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:31,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:42:31,695 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 96 more)] === [2023-11-26 10:42:31,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:31,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1538208113, now seen corresponding path program 1 times [2023-11-26 10:42:31,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:31,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969656679] [2023-11-26 10:42:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:31,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:32,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:32,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:32,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969656679] [2023-11-26 10:42:32,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969656679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:32,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:32,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:42:32,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538167760] [2023-11-26 10:42:32,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:32,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:42:32,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:32,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:42:32,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:42:32,618 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 312 [2023-11-26 10:42:32,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 262 transitions, 839 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) [2023-11-26 10:42:32,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:32,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 312 [2023-11-26 10:42:32,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand