./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya --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 3e2f466b16db44ce2fec1aabf9e70b4ab734ef2801c32e66d10c5bcbcceb5301 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:23:57,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:23:57,764 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-28 20:23:57,770 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:23:57,770 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:23:57,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:23:57,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:23:57,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:23:57,799 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:23:57,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:23:57,800 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:23:57,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:23:57,801 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:23:57,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:23:57,802 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:23:57,803 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:23:57,803 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:23:57,804 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:23:57,804 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:23:57,805 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:23:57,805 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:23:57,806 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:23:57,807 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-28 20:23:57,807 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:23:57,807 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:23:57,808 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:23:57,808 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:23:57,809 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:23:57,809 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:23:57,810 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:23:57,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:23:57,811 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:23:57,811 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:23:57,811 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:23:57,811 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:23:57,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:23:57,812 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:23:57,812 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:23:57,812 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:23:57,812 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:23:57,812 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:23:57,813 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_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e2f466b16db44ce2fec1aabf9e70b4ab734ef2801c32e66d10c5bcbcceb5301 [2023-11-28 20:23:58,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:23:58,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:23:58,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:23:58,069 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:23:58,070 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:23:58,071 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i [2023-11-28 20:24:00,813 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:24:01,030 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:24:01,031 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/sv-benchmarks/c/pthread-atomic/read_write_lock-2.i [2023-11-28 20:24:01,044 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya/data/6d103c80e/7a697ea6d24847e7af332f1546416977/FLAGb17e999bf [2023-11-28 20:24:01,056 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya/data/6d103c80e/7a697ea6d24847e7af332f1546416977 [2023-11-28 20:24:01,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:24:01,059 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:24:01,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:24:01,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:24:01,064 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:24:01,064 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:24:01" (1/1) ... [2023-11-28 20:24:01,065 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62008bd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:01, skipping insertion in model container [2023-11-28 20:24:01,065 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:24:01" (1/1) ... [2023-11-28 20:24:01,111 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:24:01,409 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:24:01,420 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:24:01,469 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:24:01,503 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:24:01,504 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:24:01,511 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:24:01,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:01 WrapperNode [2023-11-28 20:24:01,512 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:24:01,513 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:24:01,513 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:24:01,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:24:01,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:01" (1/1) ... [2023-11-28 20:24:01,537 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:01" (1/1) ... [2023-11-28 20:24:01,567 INFO L138 Inliner]: procedures = 173, calls = 51, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 185 [2023-11-28 20:24:01,567 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:24:01,568 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:24:01,568 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:24:01,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:24:01,579 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:01" (1/1) ... [2023-11-28 20:24:01,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:01" (1/1) ... [2023-11-28 20:24:01,584 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:01" (1/1) ... [2023-11-28 20:24:01,584 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:01" (1/1) ... [2023-11-28 20:24:01,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:01" (1/1) ... [2023-11-28 20:24:01,598 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:01" (1/1) ... [2023-11-28 20:24:01,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:01" (1/1) ... [2023-11-28 20:24:01,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:01" (1/1) ... [2023-11-28 20:24:01,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:24:01,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:24:01,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:24:01,608 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:24:01,609 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:01" (1/1) ... [2023-11-28 20:24:01,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:24:01,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:24:01,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:24:01,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:24:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-28 20:24:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-28 20:24:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-28 20:24:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:24:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2023-11-28 20:24:01,697 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2023-11-28 20:24:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:24:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:24:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-28 20:24:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-28 20:24:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:24:01,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:24:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2023-11-28 20:24:01,701 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2023-11-28 20:24:01,703 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-28 20:24:01,884 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:24:01,886 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:24:02,163 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:24:02,251 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:24:02,252 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-28 20:24:02,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:24:02 BoogieIcfgContainer [2023-11-28 20:24:02,254 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:24:02,257 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:24:02,257 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:24:02,260 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:24:02,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:24:01" (1/3) ... [2023-11-28 20:24:02,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bab9a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:24:02, skipping insertion in model container [2023-11-28 20:24:02,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:24:01" (2/3) ... [2023-11-28 20:24:02,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bab9a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:24:02, skipping insertion in model container [2023-11-28 20:24:02,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:24:02" (3/3) ... [2023-11-28 20:24:02,263 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2023-11-28 20:24:02,270 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-28 20:24:02,278 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:24:02,279 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-28 20:24:02,279 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-28 20:24:02,354 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-28 20:24:02,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 170 transitions, 368 flow [2023-11-28 20:24:02,453 INFO L124 PetriNetUnfolderBase]: 4/166 cut-off events. [2023-11-28 20:24:02,454 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-28 20:24:02,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 166 events. 4/166 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 269 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2023-11-28 20:24:02,460 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 170 transitions, 368 flow [2023-11-28 20:24:02,466 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 152 transitions, 325 flow [2023-11-28 20:24:02,475 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:24:02,481 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;@54ab0b88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:24:02,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-11-28 20:24:02,489 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-28 20:24:02,489 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2023-11-28 20:24:02,489 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:24:02,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:24:02,490 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:24:02,490 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-28 20:24:02,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:24:02,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1288615098, now seen corresponding path program 1 times [2023-11-28 20:24:02,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:24:02,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887628051] [2023-11-28 20:24:02,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:24:02,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:24:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:02,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:24:02,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:24:02,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887628051] [2023-11-28 20:24:02,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887628051] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:24:02,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:24:02,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-28 20:24:02,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352202916] [2023-11-28 20:24:02,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:24:02,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 20:24:02,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:24:02,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 20:24:02,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 20:24:02,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 170 [2023-11-28 20:24:02,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 152 transitions, 325 flow. Second operand has 2 states, 2 states have (on average 111.0) internal successors, (222), 2 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:02,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:24:02,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 170 [2023-11-28 20:24:02,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:24:03,856 INFO L124 PetriNetUnfolderBase]: 3363/6400 cut-off events. [2023-11-28 20:24:03,857 INFO L125 PetriNetUnfolderBase]: For 1053/1125 co-relation queries the response was YES. [2023-11-28 20:24:03,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11879 conditions, 6400 events. 3363/6400 cut-off events. For 1053/1125 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 50167 event pairs, 3363 based on Foata normal form. 628/6786 useless extension candidates. Maximal degree in co-relation 11496. Up to 4848 conditions per place. [2023-11-28 20:24:03,939 INFO L140 encePairwiseOnDemand]: 138/170 looper letters, 27 selfloop transitions, 0 changer transitions 0/116 dead transitions. [2023-11-28 20:24:03,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 116 transitions, 307 flow [2023-11-28 20:24:03,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 20:24:03,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-28 20:24:03,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 279 transitions. [2023-11-28 20:24:03,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8205882352941176 [2023-11-28 20:24:03,954 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 279 transitions. [2023-11-28 20:24:03,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 279 transitions. [2023-11-28 20:24:03,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:24:03,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 279 transitions. [2023-11-28 20:24:03,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 139.5) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:03,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:03,967 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:03,968 INFO L175 Difference]: Start difference. First operand has 161 places, 152 transitions, 325 flow. Second operand 2 states and 279 transitions. [2023-11-28 20:24:03,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 116 transitions, 307 flow [2023-11-28 20:24:03,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 116 transitions, 294 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-28 20:24:03,978 INFO L231 Difference]: Finished difference. Result has 123 places, 116 transitions, 240 flow [2023-11-28 20:24:03,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=240, PETRI_PLACES=123, PETRI_TRANSITIONS=116} [2023-11-28 20:24:03,984 INFO L281 CegarLoopForPetriNet]: 161 programPoint places, -38 predicate places. [2023-11-28 20:24:03,984 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 116 transitions, 240 flow [2023-11-28 20:24:03,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 111.0) internal successors, (222), 2 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:03,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:24:03,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:24:03,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:24:03,985 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-28 20:24:03,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:24:03,986 INFO L85 PathProgramCache]: Analyzing trace with hash -911747748, now seen corresponding path program 1 times [2023-11-28 20:24:03,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:24:03,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678155817] [2023-11-28 20:24:03,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:24:03,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:24:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:04,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:24:04,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:24:04,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678155817] [2023-11-28 20:24:04,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678155817] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:24:04,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:24:04,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:24:04,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256646258] [2023-11-28 20:24:04,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:24:04,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:24:04,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:24:04,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:24:04,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:24:04,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 170 [2023-11-28 20:24:04,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 116 transitions, 240 flow. Second operand has 6 states, 6 states have (on average 101.83333333333333) internal successors, (611), 6 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:04,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:24:04,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 170 [2023-11-28 20:24:04,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:24:08,169 INFO L124 PetriNetUnfolderBase]: 20003/30152 cut-off events. [2023-11-28 20:24:08,169 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2023-11-28 20:24:08,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57057 conditions, 30152 events. 20003/30152 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 1138. Compared 206422 event pairs, 2664 based on Foata normal form. 0/29677 useless extension candidates. Maximal degree in co-relation 57054. Up to 9699 conditions per place. [2023-11-28 20:24:08,377 INFO L140 encePairwiseOnDemand]: 165/170 looper letters, 110 selfloop transitions, 4 changer transitions 0/195 dead transitions. [2023-11-28 20:24:08,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 195 transitions, 626 flow [2023-11-28 20:24:08,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:24:08,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:24:08,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 715 transitions. [2023-11-28 20:24:08,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7009803921568627 [2023-11-28 20:24:08,384 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 715 transitions. [2023-11-28 20:24:08,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 715 transitions. [2023-11-28 20:24:08,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:24:08,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 715 transitions. [2023-11-28 20:24:08,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 119.16666666666667) internal successors, (715), 6 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:08,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:08,394 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:08,394 INFO L175 Difference]: Start difference. First operand has 123 places, 116 transitions, 240 flow. Second operand 6 states and 715 transitions. [2023-11-28 20:24:08,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 195 transitions, 626 flow [2023-11-28 20:24:08,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 195 transitions, 626 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 20:24:08,400 INFO L231 Difference]: Finished difference. Result has 127 places, 115 transitions, 246 flow [2023-11-28 20:24:08,401 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=246, PETRI_PLACES=127, PETRI_TRANSITIONS=115} [2023-11-28 20:24:08,402 INFO L281 CegarLoopForPetriNet]: 161 programPoint places, -34 predicate places. [2023-11-28 20:24:08,402 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 115 transitions, 246 flow [2023-11-28 20:24:08,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.83333333333333) internal successors, (611), 6 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:08,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:24:08,403 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] [2023-11-28 20:24:08,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 20:24:08,403 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-28 20:24:08,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:24:08,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1517413790, now seen corresponding path program 1 times [2023-11-28 20:24:08,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:24:08,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039343216] [2023-11-28 20:24:08,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:24:08,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:24:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:08,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:24:08,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:24:08,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039343216] [2023-11-28 20:24:08,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039343216] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:24:08,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:24:08,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:24:08,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658515741] [2023-11-28 20:24:08,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:24:08,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:24:08,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:24:08,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:24:08,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:24:09,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 170 [2023-11-28 20:24:09,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 115 transitions, 246 flow. Second operand has 6 states, 6 states have (on average 102.5) internal successors, (615), 6 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:09,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:24:09,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 170 [2023-11-28 20:24:09,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:24:10,409 INFO L124 PetriNetUnfolderBase]: 6563/11077 cut-off events. [2023-11-28 20:24:10,409 INFO L125 PetriNetUnfolderBase]: For 264/336 co-relation queries the response was YES. [2023-11-28 20:24:10,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20707 conditions, 11077 events. 6563/11077 cut-off events. For 264/336 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 76661 event pairs, 3304 based on Foata normal form. 0/10819 useless extension candidates. Maximal degree in co-relation 20703. Up to 4751 conditions per place. [2023-11-28 20:24:10,454 INFO L140 encePairwiseOnDemand]: 165/170 looper letters, 98 selfloop transitions, 4 changer transitions 0/182 dead transitions. [2023-11-28 20:24:10,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 182 transitions, 584 flow [2023-11-28 20:24:10,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:24:10,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:24:10,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 703 transitions. [2023-11-28 20:24:10,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6892156862745098 [2023-11-28 20:24:10,458 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 703 transitions. [2023-11-28 20:24:10,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 703 transitions. [2023-11-28 20:24:10,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:24:10,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 703 transitions. [2023-11-28 20:24:10,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:10,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:10,466 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:10,466 INFO L175 Difference]: Start difference. First operand has 127 places, 115 transitions, 246 flow. Second operand 6 states and 703 transitions. [2023-11-28 20:24:10,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 182 transitions, 584 flow [2023-11-28 20:24:10,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 182 transitions, 577 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-28 20:24:10,471 INFO L231 Difference]: Finished difference. Result has 127 places, 114 transitions, 245 flow [2023-11-28 20:24:10,472 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=245, PETRI_PLACES=127, PETRI_TRANSITIONS=114} [2023-11-28 20:24:10,472 INFO L281 CegarLoopForPetriNet]: 161 programPoint places, -34 predicate places. [2023-11-28 20:24:10,473 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 114 transitions, 245 flow [2023-11-28 20:24:10,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.5) internal successors, (615), 6 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:10,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:24:10,474 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] [2023-11-28 20:24:10,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 20:24:10,474 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-28 20:24:10,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:24:10,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1996220546, now seen corresponding path program 1 times [2023-11-28 20:24:10,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:24:10,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527157135] [2023-11-28 20:24:10,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:24:10,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:24:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:11,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:24:11,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:24:11,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527157135] [2023-11-28 20:24:11,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527157135] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:24:11,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:24:11,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:24:11,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239832653] [2023-11-28 20:24:11,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:24:11,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:24:11,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:24:11,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:24:11,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:24:11,232 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 170 [2023-11-28 20:24:11,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 114 transitions, 245 flow. Second operand has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:11,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:24:11,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 170 [2023-11-28 20:24:11,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:24:11,900 INFO L124 PetriNetUnfolderBase]: 3623/6811 cut-off events. [2023-11-28 20:24:11,900 INFO L125 PetriNetUnfolderBase]: For 288/360 co-relation queries the response was YES. [2023-11-28 20:24:11,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12386 conditions, 6811 events. 3623/6811 cut-off events. For 288/360 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 52019 event pairs, 3356 based on Foata normal form. 0/6573 useless extension candidates. Maximal degree in co-relation 12382. Up to 4835 conditions per place. [2023-11-28 20:24:12,018 INFO L140 encePairwiseOnDemand]: 165/170 looper letters, 70 selfloop transitions, 4 changer transitions 0/153 dead transitions. [2023-11-28 20:24:12,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 153 transitions, 471 flow [2023-11-28 20:24:12,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:24:12,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:24:12,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 675 transitions. [2023-11-28 20:24:12,021 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6617647058823529 [2023-11-28 20:24:12,022 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 675 transitions. [2023-11-28 20:24:12,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 675 transitions. [2023-11-28 20:24:12,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:24:12,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 675 transitions. [2023-11-28 20:24:12,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:12,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:12,029 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:12,030 INFO L175 Difference]: Start difference. First operand has 127 places, 114 transitions, 245 flow. Second operand 6 states and 675 transitions. [2023-11-28 20:24:12,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 153 transitions, 471 flow [2023-11-28 20:24:12,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 153 transitions, 464 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-28 20:24:12,033 INFO L231 Difference]: Finished difference. Result has 127 places, 113 transitions, 244 flow [2023-11-28 20:24:12,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=244, PETRI_PLACES=127, PETRI_TRANSITIONS=113} [2023-11-28 20:24:12,034 INFO L281 CegarLoopForPetriNet]: 161 programPoint places, -34 predicate places. [2023-11-28 20:24:12,034 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 113 transitions, 244 flow [2023-11-28 20:24:12,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:12,035 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:24:12,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:24:12,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 20:24:12,036 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-28 20:24:12,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:24:12,036 INFO L85 PathProgramCache]: Analyzing trace with hash 553460004, now seen corresponding path program 1 times [2023-11-28 20:24:12,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:24:12,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139174967] [2023-11-28 20:24:12,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:24:12,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:24:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:12,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:24:12,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:24:12,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139174967] [2023-11-28 20:24:12,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139174967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:24:12,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:24:12,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:24:12,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301358934] [2023-11-28 20:24:12,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:24:12,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:24:12,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:24:12,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:24:12,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:24:12,250 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 170 [2023-11-28 20:24:12,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 113 transitions, 244 flow. Second operand has 5 states, 5 states have (on average 112.4) internal successors, (562), 5 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:12,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:24:12,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 170 [2023-11-28 20:24:12,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:24:13,131 INFO L124 PetriNetUnfolderBase]: 3852/9313 cut-off events. [2023-11-28 20:24:13,131 INFO L125 PetriNetUnfolderBase]: For 522/692 co-relation queries the response was YES. [2023-11-28 20:24:13,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16090 conditions, 9313 events. 3852/9313 cut-off events. For 522/692 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 86292 event pairs, 1143 based on Foata normal form. 576/9583 useless extension candidates. Maximal degree in co-relation 16086. Up to 3678 conditions per place. [2023-11-28 20:24:13,186 INFO L140 encePairwiseOnDemand]: 161/170 looper letters, 85 selfloop transitions, 17 changer transitions 0/186 dead transitions. [2023-11-28 20:24:13,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 186 transitions, 612 flow [2023-11-28 20:24:13,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:24:13,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-28 20:24:13,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 644 transitions. [2023-11-28 20:24:13,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7576470588235295 [2023-11-28 20:24:13,190 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 644 transitions. [2023-11-28 20:24:13,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 644 transitions. [2023-11-28 20:24:13,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:24:13,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 644 transitions. [2023-11-28 20:24:13,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:13,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:13,195 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:13,196 INFO L175 Difference]: Start difference. First operand has 127 places, 113 transitions, 244 flow. Second operand 5 states and 644 transitions. [2023-11-28 20:24:13,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 186 transitions, 612 flow [2023-11-28 20:24:13,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 186 transitions, 605 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-28 20:24:13,205 INFO L231 Difference]: Finished difference. Result has 129 places, 129 transitions, 342 flow [2023-11-28 20:24:13,205 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=342, PETRI_PLACES=129, PETRI_TRANSITIONS=129} [2023-11-28 20:24:13,206 INFO L281 CegarLoopForPetriNet]: 161 programPoint places, -32 predicate places. [2023-11-28 20:24:13,206 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 129 transitions, 342 flow [2023-11-28 20:24:13,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 112.4) internal successors, (562), 5 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:13,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:24:13,207 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:24:13,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-28 20:24:13,208 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-28 20:24:13,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:24:13,208 INFO L85 PathProgramCache]: Analyzing trace with hash 2105867260, now seen corresponding path program 2 times [2023-11-28 20:24:13,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:24:13,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879314731] [2023-11-28 20:24:13,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:24:13,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:24:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:13,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:24:13,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:24:13,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879314731] [2023-11-28 20:24:13,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879314731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:24:13,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:24:13,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:24:13,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776670149] [2023-11-28 20:24:13,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:24:13,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:24:13,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:24:13,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:24:13,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:24:13,303 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 170 [2023-11-28 20:24:13,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 129 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:13,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:24:13,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 170 [2023-11-28 20:24:13,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:24:13,591 INFO L124 PetriNetUnfolderBase]: 928/2589 cut-off events. [2023-11-28 20:24:13,591 INFO L125 PetriNetUnfolderBase]: For 1014/1064 co-relation queries the response was YES. [2023-11-28 20:24:13,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5361 conditions, 2589 events. 928/2589 cut-off events. For 1014/1064 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 22192 event pairs, 581 based on Foata normal form. 128/2589 useless extension candidates. Maximal degree in co-relation 5355. Up to 1314 conditions per place. [2023-11-28 20:24:13,604 INFO L140 encePairwiseOnDemand]: 164/170 looper letters, 49 selfloop transitions, 10 changer transitions 0/144 dead transitions. [2023-11-28 20:24:13,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 144 transitions, 496 flow [2023-11-28 20:24:13,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:24:13,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:24:13,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions. [2023-11-28 20:24:13,606 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7372549019607844 [2023-11-28 20:24:13,606 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 376 transitions. [2023-11-28 20:24:13,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 376 transitions. [2023-11-28 20:24:13,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:24:13,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 376 transitions. [2023-11-28 20:24:13,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:13,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:13,609 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:13,609 INFO L175 Difference]: Start difference. First operand has 129 places, 129 transitions, 342 flow. Second operand 3 states and 376 transitions. [2023-11-28 20:24:13,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 144 transitions, 496 flow [2023-11-28 20:24:13,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 144 transitions, 496 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 20:24:13,613 INFO L231 Difference]: Finished difference. Result has 132 places, 129 transitions, 376 flow [2023-11-28 20:24:13,613 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=132, PETRI_TRANSITIONS=129} [2023-11-28 20:24:13,614 INFO L281 CegarLoopForPetriNet]: 161 programPoint places, -29 predicate places. [2023-11-28 20:24:13,614 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 129 transitions, 376 flow [2023-11-28 20:24:13,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:13,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:24:13,615 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:24:13,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-28 20:24:13,616 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-28 20:24:13,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:24:13,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1256252002, now seen corresponding path program 3 times [2023-11-28 20:24:13,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:24:13,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434651513] [2023-11-28 20:24:13,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:24:13,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:24:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:24:14,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:24:14,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:24:14,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434651513] [2023-11-28 20:24:14,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434651513] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:24:14,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:24:14,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:24:14,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501712391] [2023-11-28 20:24:14,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:24:14,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:24:14,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:24:14,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:24:14,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:24:14,203 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 170 [2023-11-28 20:24:14,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 129 transitions, 376 flow. Second operand has 6 states, 6 states have (on average 104.5) internal successors, (627), 6 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:14,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:24:14,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 170 [2023-11-28 20:24:14,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:24:14,551 INFO L124 PetriNetUnfolderBase]: 1028/2817 cut-off events. [2023-11-28 20:24:14,551 INFO L125 PetriNetUnfolderBase]: For 2028/2076 co-relation queries the response was YES. [2023-11-28 20:24:14,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6210 conditions, 2817 events. 1028/2817 cut-off events. For 2028/2076 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 23728 event pairs, 765 based on Foata normal form. 0/2675 useless extension candidates. Maximal degree in co-relation 6202. Up to 1780 conditions per place. [2023-11-28 20:24:14,558 INFO L140 encePairwiseOnDemand]: 165/170 looper letters, 0 selfloop transitions, 0 changer transitions 168/168 dead transitions. [2023-11-28 20:24:14,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 168 transitions, 690 flow [2023-11-28 20:24:14,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:24:14,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:24:14,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 663 transitions. [2023-11-28 20:24:14,560 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.65 [2023-11-28 20:24:14,561 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 663 transitions. [2023-11-28 20:24:14,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 663 transitions. [2023-11-28 20:24:14,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:24:14,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 663 transitions. [2023-11-28 20:24:14,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:14,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:14,565 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:14,565 INFO L175 Difference]: Start difference. First operand has 132 places, 129 transitions, 376 flow. Second operand 6 states and 663 transitions. [2023-11-28 20:24:14,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 168 transitions, 690 flow [2023-11-28 20:24:14,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 168 transitions, 670 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 20:24:14,569 INFO L231 Difference]: Finished difference. Result has 134 places, 0 transitions, 0 flow [2023-11-28 20:24:14,570 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=134, PETRI_TRANSITIONS=0} [2023-11-28 20:24:14,570 INFO L281 CegarLoopForPetriNet]: 161 programPoint places, -27 predicate places. [2023-11-28 20:24:14,570 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 0 transitions, 0 flow [2023-11-28 20:24:14,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.5) internal successors, (627), 6 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:24:14,572 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (49 of 50 remaining) [2023-11-28 20:24:14,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2023-11-28 20:24:14,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2023-11-28 20:24:14,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2023-11-28 20:24:14,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2023-11-28 20:24:14,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2023-11-28 20:24:14,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (43 of 50 remaining) [2023-11-28 20:24:14,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2023-11-28 20:24:14,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2023-11-28 20:24:14,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2023-11-28 20:24:14,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2023-11-28 20:24:14,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2023-11-28 20:24:14,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2023-11-28 20:24:14,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 50 remaining) [2023-11-28 20:24:14,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 50 remaining) [2023-11-28 20:24:14,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 50 remaining) [2023-11-28 20:24:14,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 50 remaining) [2023-11-28 20:24:14,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (32 of 50 remaining) [2023-11-28 20:24:14,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2023-11-28 20:24:14,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2023-11-28 20:24:14,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2023-11-28 20:24:14,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2023-11-28 20:24:14,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2023-11-28 20:24:14,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2023-11-28 20:24:14,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2023-11-28 20:24:14,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2023-11-28 20:24:14,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2023-11-28 20:24:14,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (22 of 50 remaining) [2023-11-28 20:24:14,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (21 of 50 remaining) [2023-11-28 20:24:14,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (20 of 50 remaining) [2023-11-28 20:24:14,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2023-11-28 20:24:14,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2023-11-28 20:24:14,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2023-11-28 20:24:14,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2023-11-28 20:24:14,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2023-11-28 20:24:14,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2023-11-28 20:24:14,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2023-11-28 20:24:14,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2023-11-28 20:24:14,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2023-11-28 20:24:14,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2023-11-28 20:24:14,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2023-11-28 20:24:14,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2023-11-28 20:24:14,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2023-11-28 20:24:14,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2023-11-28 20:24:14,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2023-11-28 20:24:14,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2023-11-28 20:24:14,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2023-11-28 20:24:14,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2023-11-28 20:24:14,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2023-11-28 20:24:14,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2023-11-28 20:24:14,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-28 20:24:14,580 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2023-11-28 20:24:14,585 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-28 20:24:14,585 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:24:14,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:24:14 BasicIcfg [2023-11-28 20:24:14,589 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:24:14,590 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:24:14,590 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:24:14,590 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:24:14,590 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:24:02" (3/4) ... [2023-11-28 20:24:14,591 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-28 20:24:14,595 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2023-11-28 20:24:14,595 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2023-11-28 20:24:14,600 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-28 20:24:14,600 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-28 20:24:14,600 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-28 20:24:14,601 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-28 20:24:14,687 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-28 20:24:14,688 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-28 20:24:14,688 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:24:14,689 INFO L158 Benchmark]: Toolchain (without parser) took 13630.15ms. Allocated memory was 146.8MB in the beginning and 1.1GB in the end (delta: 918.6MB). Free memory was 100.0MB in the beginning and 300.2MB in the end (delta: -200.2MB). Peak memory consumption was 720.4MB. Max. memory is 16.1GB. [2023-11-28 20:24:14,689 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 146.8MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:24:14,690 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.81ms. Allocated memory is still 146.8MB. Free memory was 99.5MB in the beginning and 78.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-28 20:24:14,690 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.91ms. Allocated memory is still 146.8MB. Free memory was 78.9MB in the beginning and 76.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:24:14,691 INFO L158 Benchmark]: Boogie Preprocessor took 39.49ms. Allocated memory is still 146.8MB. Free memory was 76.5MB in the beginning and 74.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:24:14,691 INFO L158 Benchmark]: RCFGBuilder took 645.79ms. Allocated memory was 146.8MB in the beginning and 182.5MB in the end (delta: 35.7MB). Free memory was 74.4MB in the beginning and 131.5MB in the end (delta: -57.1MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2023-11-28 20:24:14,692 INFO L158 Benchmark]: TraceAbstraction took 12332.84ms. Allocated memory was 182.5MB in the beginning and 1.1GB in the end (delta: 882.9MB). Free memory was 130.5MB in the beginning and 305.4MB in the end (delta: -174.9MB). Peak memory consumption was 707.9MB. Max. memory is 16.1GB. [2023-11-28 20:24:14,692 INFO L158 Benchmark]: Witness Printer took 98.71ms. Allocated memory is still 1.1GB. Free memory was 305.4MB in the beginning and 300.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-28 20:24:14,694 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 146.8MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 452.81ms. Allocated memory is still 146.8MB. Free memory was 99.5MB in the beginning and 78.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.91ms. Allocated memory is still 146.8MB. Free memory was 78.9MB in the beginning and 76.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.49ms. Allocated memory is still 146.8MB. Free memory was 76.5MB in the beginning and 74.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 645.79ms. Allocated memory was 146.8MB in the beginning and 182.5MB in the end (delta: 35.7MB). Free memory was 74.4MB in the beginning and 131.5MB in the end (delta: -57.1MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * TraceAbstraction took 12332.84ms. Allocated memory was 182.5MB in the beginning and 1.1GB in the end (delta: 882.9MB). Free memory was 130.5MB in the beginning and 305.4MB in the end (delta: -174.9MB). Peak memory consumption was 707.9MB. Max. memory is 16.1GB. * Witness Printer took 98.71ms. Allocated memory is still 1.1GB. Free memory was 305.4MB in the beginning and 300.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 740]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 753]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 754]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 756]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 716]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 719]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 210 locations, 50 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 615 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 458 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 229 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1675 IncrementalHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 229 mSolverCounterUnsat, 1 mSDtfsCounter, 1675 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=376occurred in iteration=6, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 490 NumberOfCodeBlocks, 490 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 483 ConstructedInterpolants, 0 QuantifiedInterpolants, 1031 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-28 20:24:14,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fba84f8-6d0e-4fde-be5c-b9637a17e2a8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE