./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/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_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/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_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/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 b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:42:26,345 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:42:26,413 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 03:42:26,418 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:42:26,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:42:26,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:42:26,443 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:42:26,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:42:26,444 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:42:26,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:42:26,445 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:42:26,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:42:26,446 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:42:26,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:42:26,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:42:26,448 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:42:26,448 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:42:26,449 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:42:26,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:42:26,450 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:42:26,450 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:42:26,451 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:42:26,451 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 03:42:26,452 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:42:26,452 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:42:26,452 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:42:26,453 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:42:26,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:42:26,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:42:26,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:42:26,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:42:26,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:42:26,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:42:26,455 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:42:26,456 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:42:26,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:42:26,456 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:42:26,456 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:42:26,457 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:42:26,457 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:42:26,457 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:42:26,457 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_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b [2023-11-29 03:42:26,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:42:26,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:42:26,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:42:26,712 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:42:26,713 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:42:26,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2023-11-29 03:42:29,477 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:42:29,783 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:42:29,784 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2023-11-29 03:42:29,803 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/data/7fcaf8bee/51adb382698d434ba46d97800aeb6964/FLAG1df753d9d [2023-11-29 03:42:29,817 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/data/7fcaf8bee/51adb382698d434ba46d97800aeb6964 [2023-11-29 03:42:29,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:42:29,823 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:42:29,824 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:42:29,824 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:42:29,833 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:42:29,833 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:42:29" (1/1) ... [2023-11-29 03:42:29,834 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66c92a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:42:29, skipping insertion in model container [2023-11-29 03:42:29,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:42:29" (1/1) ... [2023-11-29 03:42:29,886 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:42:30,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:42:30,529 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:42:30,589 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:42:30,682 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:42:30,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:42:30 WrapperNode [2023-11-29 03:42:30,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:42:30,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:42:30,684 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:42:30,684 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:42:30,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:42:30" (1/1) ... [2023-11-29 03:42:30,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:42:30" (1/1) ... [2023-11-29 03:42:30,764 INFO L138 Inliner]: procedures = 371, calls = 39, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 362 [2023-11-29 03:42:30,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:42:30,765 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:42:30,765 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:42:30,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:42:30,773 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:42:30" (1/1) ... [2023-11-29 03:42:30,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:42:30" (1/1) ... [2023-11-29 03:42:30,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:42:30" (1/1) ... [2023-11-29 03:42:30,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:42:30" (1/1) ... [2023-11-29 03:42:30,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:42:30" (1/1) ... [2023-11-29 03:42:30,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:42:30" (1/1) ... [2023-11-29 03:42:30,832 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:42:30" (1/1) ... [2023-11-29 03:42:30,836 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:42:30" (1/1) ... [2023-11-29 03:42:30,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:42:30,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:42:30,845 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:42:30,845 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:42:30,846 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:42:30" (1/1) ... [2023-11-29 03:42:30,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:42:30,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:30,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:42:30,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:42:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 03:42:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-29 03:42:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 03:42:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 03:42:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 03:42:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 03:42:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 03:42:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 03:42:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:42:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-29 03:42:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-29 03:42:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-29 03:42:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:42:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:42:30,937 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 03:42:31,109 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:42:31,111 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:42:31,804 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:42:31,831 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:42:31,831 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:42:31,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:42:31 BoogieIcfgContainer [2023-11-29 03:42:31,833 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:42:31,835 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:42:31,835 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:42:31,838 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:42:31,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:42:29" (1/3) ... [2023-11-29 03:42:31,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a82bb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:42:31, skipping insertion in model container [2023-11-29 03:42:31,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:42:30" (2/3) ... [2023-11-29 03:42:31,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a82bb98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:42:31, skipping insertion in model container [2023-11-29 03:42:31,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:42:31" (3/3) ... [2023-11-29 03:42:31,841 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_13-arraycollapse_nr.i [2023-11-29 03:42:31,848 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 03:42:31,857 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:42:31,857 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-29 03:42:31,857 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 03:42:31,949 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 03:42:31,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 431 places, 432 transitions, 868 flow [2023-11-29 03:42:32,170 INFO L124 PetriNetUnfolderBase]: 5/431 cut-off events. [2023-11-29 03:42:32,170 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 03:42:32,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 431 events. 5/431 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 366 event pairs, 0 based on Foata normal form. 0/396 useless extension candidates. Maximal degree in co-relation 302. Up to 2 conditions per place. [2023-11-29 03:42:32,176 INFO L82 GeneralOperation]: Start removeDead. Operand has 431 places, 432 transitions, 868 flow [2023-11-29 03:42:32,186 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 430 places, 431 transitions, 865 flow [2023-11-29 03:42:32,196 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:42:32,203 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;@39a7a532, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:42:32,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-11-29 03:42:32,211 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 03:42:32,211 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2023-11-29 03:42:32,211 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 03:42:32,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:42:32,212 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] [2023-11-29 03:42:32,213 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 03:42:32,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:32,219 INFO L85 PathProgramCache]: Analyzing trace with hash -410546215, now seen corresponding path program 1 times [2023-11-29 03:42:32,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:32,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710822367] [2023-11-29 03:42:32,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:32,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:32,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:32,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:32,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710822367] [2023-11-29 03:42:32,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710822367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:32,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:42:32,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:42:32,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932050433] [2023-11-29 03:42:32,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:32,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:42:32,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:32,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:42:32,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:42:33,816 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 432 [2023-11-29 03:42:33,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 431 transitions, 865 flow. Second operand has 6 states, 6 states have (on average 292.3333333333333) internal successors, (1754), 6 states have internal predecessors, (1754), 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) [2023-11-29 03:42:33,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:42:33,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 432 [2023-11-29 03:42:33,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:42:34,487 INFO L124 PetriNetUnfolderBase]: 365/1779 cut-off events. [2023-11-29 03:42:34,487 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 03:42:34,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2645 conditions, 1779 events. 365/1779 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9438 event pairs, 364 based on Foata normal form. 13/1654 useless extension candidates. Maximal degree in co-relation 2251. Up to 842 conditions per place. [2023-11-29 03:42:34,504 INFO L140 encePairwiseOnDemand]: 404/432 looper letters, 113 selfloop transitions, 20 changer transitions 2/423 dead transitions. [2023-11-29 03:42:34,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 423 transitions, 1115 flow [2023-11-29 03:42:34,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:42:34,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:42:34,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1887 transitions. [2023-11-29 03:42:34,525 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7280092592592593 [2023-11-29 03:42:34,525 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1887 transitions. [2023-11-29 03:42:34,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1887 transitions. [2023-11-29 03:42:34,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:42:34,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1887 transitions. [2023-11-29 03:42:34,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 314.5) internal successors, (1887), 6 states have internal predecessors, (1887), 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) [2023-11-29 03:42:34,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:34,556 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:34,558 INFO L175 Difference]: Start difference. First operand has 430 places, 431 transitions, 865 flow. Second operand 6 states and 1887 transitions. [2023-11-29 03:42:34,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 423 transitions, 1115 flow [2023-11-29 03:42:34,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 423 transitions, 1114 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 03:42:34,576 INFO L231 Difference]: Finished difference. Result has 430 places, 421 transitions, 884 flow [2023-11-29 03:42:34,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=884, PETRI_PLACES=430, PETRI_TRANSITIONS=421} [2023-11-29 03:42:34,582 INFO L281 CegarLoopForPetriNet]: 430 programPoint places, 0 predicate places. [2023-11-29 03:42:34,583 INFO L495 AbstractCegarLoop]: Abstraction has has 430 places, 421 transitions, 884 flow [2023-11-29 03:42:34,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 292.3333333333333) internal successors, (1754), 6 states have internal predecessors, (1754), 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) [2023-11-29 03:42:34,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:42:34,585 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] [2023-11-29 03:42:34,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:42:34,585 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 03:42:34,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:34,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1975994147, now seen corresponding path program 1 times [2023-11-29 03:42:34,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:34,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934328114] [2023-11-29 03:42:34,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:34,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:34,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:34,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:34,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934328114] [2023-11-29 03:42:34,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934328114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:34,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:42:34,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:42:34,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445753872] [2023-11-29 03:42:34,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:34,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:42:34,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:34,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:42:34,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:42:35,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 432 [2023-11-29 03:42:35,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 421 transitions, 884 flow. Second operand has 6 states, 6 states have (on average 292.3333333333333) internal successors, (1754), 6 states have internal predecessors, (1754), 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) [2023-11-29 03:42:35,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:42:35,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 432 [2023-11-29 03:42:35,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:42:36,266 INFO L124 PetriNetUnfolderBase]: 365/1773 cut-off events. [2023-11-29 03:42:36,267 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 03:42:36,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2659 conditions, 1773 events. 365/1773 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9449 event pairs, 364 based on Foata normal form. 0/1641 useless extension candidates. Maximal degree in co-relation 2337. Up to 842 conditions per place. [2023-11-29 03:42:36,279 INFO L140 encePairwiseOnDemand]: 408/432 looper letters, 113 selfloop transitions, 20 changer transitions 0/417 dead transitions. [2023-11-29 03:42:36,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 417 transitions, 1142 flow [2023-11-29 03:42:36,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:42:36,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:42:36,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1883 transitions. [2023-11-29 03:42:36,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7264660493827161 [2023-11-29 03:42:36,286 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1883 transitions. [2023-11-29 03:42:36,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1883 transitions. [2023-11-29 03:42:36,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:42:36,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1883 transitions. [2023-11-29 03:42:36,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 313.8333333333333) internal successors, (1883), 6 states have internal predecessors, (1883), 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) [2023-11-29 03:42:36,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:36,305 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:36,306 INFO L175 Difference]: Start difference. First operand has 430 places, 421 transitions, 884 flow. Second operand 6 states and 1883 transitions. [2023-11-29 03:42:36,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 417 transitions, 1142 flow [2023-11-29 03:42:36,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 417 transitions, 1102 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:42:36,318 INFO L231 Difference]: Finished difference. Result has 424 places, 417 transitions, 876 flow [2023-11-29 03:42:36,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=876, PETRI_PLACES=424, PETRI_TRANSITIONS=417} [2023-11-29 03:42:36,320 INFO L281 CegarLoopForPetriNet]: 430 programPoint places, -6 predicate places. [2023-11-29 03:42:36,320 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 417 transitions, 876 flow [2023-11-29 03:42:36,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 292.3333333333333) internal successors, (1754), 6 states have internal predecessors, (1754), 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) [2023-11-29 03:42:36,322 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:42:36,322 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] [2023-11-29 03:42:36,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:42:36,322 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 03:42:36,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:36,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1735557152, now seen corresponding path program 1 times [2023-11-29 03:42:36,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:36,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779223919] [2023-11-29 03:42:36,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:36,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:36,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:36,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:36,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779223919] [2023-11-29 03:42:36,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779223919] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:36,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:42:36,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:42:36,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051468954] [2023-11-29 03:42:36,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:36,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:42:36,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:36,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:42:36,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:42:37,296 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 292 out of 432 [2023-11-29 03:42:37,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 417 transitions, 876 flow. Second operand has 6 states, 6 states have (on average 294.8333333333333) internal successors, (1769), 6 states have internal predecessors, (1769), 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) [2023-11-29 03:42:37,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:42:37,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 292 of 432 [2023-11-29 03:42:37,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:42:37,594 INFO L124 PetriNetUnfolderBase]: 391/1862 cut-off events. [2023-11-29 03:42:37,594 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-29 03:42:37,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2802 conditions, 1862 events. 391/1862 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 10259 event pairs, 390 based on Foata normal form. 0/1724 useless extension candidates. Maximal degree in co-relation 2464. Up to 911 conditions per place. [2023-11-29 03:42:37,603 INFO L140 encePairwiseOnDemand]: 426/432 looper letters, 130 selfloop transitions, 5 changer transitions 0/416 dead transitions. [2023-11-29 03:42:37,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 416 transitions, 1144 flow [2023-11-29 03:42:37,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:42:37,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:42:37,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1888 transitions. [2023-11-29 03:42:37,610 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7283950617283951 [2023-11-29 03:42:37,610 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1888 transitions. [2023-11-29 03:42:37,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1888 transitions. [2023-11-29 03:42:37,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:42:37,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1888 transitions. [2023-11-29 03:42:37,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 314.6666666666667) internal successors, (1888), 6 states have internal predecessors, (1888), 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) [2023-11-29 03:42:37,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:37,623 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:37,623 INFO L175 Difference]: Start difference. First operand has 424 places, 417 transitions, 876 flow. Second operand 6 states and 1888 transitions. [2023-11-29 03:42:37,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 416 transitions, 1144 flow [2023-11-29 03:42:37,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 416 transitions, 1104 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:42:37,632 INFO L231 Difference]: Finished difference. Result has 423 places, 416 transitions, 844 flow [2023-11-29 03:42:37,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=844, PETRI_PLACES=423, PETRI_TRANSITIONS=416} [2023-11-29 03:42:37,633 INFO L281 CegarLoopForPetriNet]: 430 programPoint places, -7 predicate places. [2023-11-29 03:42:37,633 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 416 transitions, 844 flow [2023-11-29 03:42:37,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 294.8333333333333) internal successors, (1769), 6 states have internal predecessors, (1769), 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) [2023-11-29 03:42:37,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:42:37,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:42:37,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:42:37,635 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 03:42:37,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:37,636 INFO L85 PathProgramCache]: Analyzing trace with hash 19968795, now seen corresponding path program 1 times [2023-11-29 03:42:37,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:37,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423480511] [2023-11-29 03:42:37,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:37,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:37,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:37,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:37,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423480511] [2023-11-29 03:42:37,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423480511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:37,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:42:37,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:42:37,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646304039] [2023-11-29 03:42:37,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:37,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:42:37,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:37,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:42:37,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:42:37,759 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 432 [2023-11-29 03:42:37,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 416 transitions, 844 flow. Second operand has 3 states, 3 states have (on average 418.3333333333333) internal successors, (1255), 3 states have internal predecessors, (1255), 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) [2023-11-29 03:42:37,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:42:37,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 432 [2023-11-29 03:42:37,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:42:37,833 INFO L124 PetriNetUnfolderBase]: 7/603 cut-off events. [2023-11-29 03:42:37,834 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 03:42:37,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 642 conditions, 603 events. 7/603 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 637 event pairs, 6 based on Foata normal form. 1/568 useless extension candidates. Maximal degree in co-relation 499. Up to 24 conditions per place. [2023-11-29 03:42:37,836 INFO L140 encePairwiseOnDemand]: 429/432 looper letters, 10 selfloop transitions, 2 changer transitions 0/417 dead transitions. [2023-11-29 03:42:37,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 417 transitions, 870 flow [2023-11-29 03:42:37,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:42:37,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:42:37,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1264 transitions. [2023-11-29 03:42:37,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9753086419753086 [2023-11-29 03:42:37,840 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1264 transitions. [2023-11-29 03:42:37,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1264 transitions. [2023-11-29 03:42:37,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:42:37,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1264 transitions. [2023-11-29 03:42:37,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 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) [2023-11-29 03:42:37,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 432.0) internal successors, (1728), 4 states have internal predecessors, (1728), 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) [2023-11-29 03:42:37,848 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 432.0) internal successors, (1728), 4 states have internal predecessors, (1728), 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) [2023-11-29 03:42:37,849 INFO L175 Difference]: Start difference. First operand has 423 places, 416 transitions, 844 flow. Second operand 3 states and 1264 transitions. [2023-11-29 03:42:37,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 417 transitions, 870 flow [2023-11-29 03:42:37,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 417 transitions, 860 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:42:37,859 INFO L231 Difference]: Finished difference. Result has 421 places, 417 transitions, 846 flow [2023-11-29 03:42:37,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=846, PETRI_PLACES=421, PETRI_TRANSITIONS=417} [2023-11-29 03:42:37,861 INFO L281 CegarLoopForPetriNet]: 430 programPoint places, -9 predicate places. [2023-11-29 03:42:37,861 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 417 transitions, 846 flow [2023-11-29 03:42:37,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 418.3333333333333) internal successors, (1255), 3 states have internal predecessors, (1255), 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) [2023-11-29 03:42:37,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:42:37,862 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] [2023-11-29 03:42:37,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 03:42:37,863 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 03:42:37,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:37,863 INFO L85 PathProgramCache]: Analyzing trace with hash -424984831, now seen corresponding path program 1 times [2023-11-29 03:42:37,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:37,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013415857] [2023-11-29 03:42:37,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:37,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:38,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:38,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:38,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013415857] [2023-11-29 03:42:38,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013415857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:38,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:42:38,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:42:38,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057299157] [2023-11-29 03:42:38,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:38,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:42:38,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:38,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:42:38,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:42:39,253 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 432 [2023-11-29 03:42:39,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 417 transitions, 846 flow. Second operand has 6 states, 6 states have (on average 338.8333333333333) internal successors, (2033), 6 states have internal predecessors, (2033), 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) [2023-11-29 03:42:39,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:42:39,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 432 [2023-11-29 03:42:39,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:42:39,398 INFO L124 PetriNetUnfolderBase]: 55/844 cut-off events. [2023-11-29 03:42:39,399 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 03:42:39,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 844 events. 55/844 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2302 event pairs, 54 based on Foata normal form. 0/784 useless extension candidates. Maximal degree in co-relation 927. Up to 227 conditions per place. [2023-11-29 03:42:39,403 INFO L140 encePairwiseOnDemand]: 426/432 looper letters, 89 selfloop transitions, 5 changer transitions 0/416 dead transitions. [2023-11-29 03:42:39,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 416 transitions, 1032 flow [2023-11-29 03:42:39,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:42:39,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:42:39,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2098 transitions. [2023-11-29 03:42:39,410 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8094135802469136 [2023-11-29 03:42:39,411 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2098 transitions. [2023-11-29 03:42:39,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2098 transitions. [2023-11-29 03:42:39,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:42:39,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2098 transitions. [2023-11-29 03:42:39,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 349.6666666666667) internal successors, (2098), 6 states have internal predecessors, (2098), 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) [2023-11-29 03:42:39,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:39,423 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:39,423 INFO L175 Difference]: Start difference. First operand has 421 places, 417 transitions, 846 flow. Second operand 6 states and 2098 transitions. [2023-11-29 03:42:39,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 416 transitions, 1032 flow [2023-11-29 03:42:39,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 416 transitions, 1030 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 03:42:39,430 INFO L231 Difference]: Finished difference. Result has 424 places, 416 transitions, 852 flow [2023-11-29 03:42:39,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=852, PETRI_PLACES=424, PETRI_TRANSITIONS=416} [2023-11-29 03:42:39,432 INFO L281 CegarLoopForPetriNet]: 430 programPoint places, -6 predicate places. [2023-11-29 03:42:39,433 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 416 transitions, 852 flow [2023-11-29 03:42:39,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 338.8333333333333) internal successors, (2033), 6 states have internal predecessors, (2033), 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) [2023-11-29 03:42:39,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:42:39,434 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] [2023-11-29 03:42:39,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 03:42:39,434 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 03:42:39,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:39,435 INFO L85 PathProgramCache]: Analyzing trace with hash -289859891, now seen corresponding path program 1 times [2023-11-29 03:42:39,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:39,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372952955] [2023-11-29 03:42:39,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:39,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:39,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:39,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:39,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372952955] [2023-11-29 03:42:39,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372952955] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:39,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:42:39,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:42:39,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677559997] [2023-11-29 03:42:39,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:39,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:42:39,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:39,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:42:39,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:42:40,613 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 432 [2023-11-29 03:42:40,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 416 transitions, 852 flow. Second operand has 6 states, 6 states have (on average 321.5) internal successors, (1929), 6 states have internal predecessors, (1929), 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) [2023-11-29 03:42:40,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:42:40,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 432 [2023-11-29 03:42:40,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:42:40,904 INFO L124 PetriNetUnfolderBase]: 37/757 cut-off events. [2023-11-29 03:42:40,904 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 03:42:40,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 994 conditions, 757 events. 37/757 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1756 event pairs, 36 based on Foata normal form. 0/714 useless extension candidates. Maximal degree in co-relation 795. Up to 198 conditions per place. [2023-11-29 03:42:40,909 INFO L140 encePairwiseOnDemand]: 414/432 looper letters, 93 selfloop transitions, 15 changer transitions 0/413 dead transitions. [2023-11-29 03:42:40,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 413 transitions, 1062 flow [2023-11-29 03:42:40,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:42:40,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:42:40,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2013 transitions. [2023-11-29 03:42:40,918 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7766203703703703 [2023-11-29 03:42:40,918 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2013 transitions. [2023-11-29 03:42:40,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2013 transitions. [2023-11-29 03:42:40,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:42:40,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2013 transitions. [2023-11-29 03:42:40,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 335.5) internal successors, (2013), 6 states have internal predecessors, (2013), 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) [2023-11-29 03:42:40,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:40,937 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:40,937 INFO L175 Difference]: Start difference. First operand has 424 places, 416 transitions, 852 flow. Second operand 6 states and 2013 transitions. [2023-11-29 03:42:40,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 413 transitions, 1062 flow [2023-11-29 03:42:40,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 413 transitions, 1052 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:42:40,949 INFO L231 Difference]: Finished difference. Result has 421 places, 413 transitions, 866 flow [2023-11-29 03:42:40,950 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=866, PETRI_PLACES=421, PETRI_TRANSITIONS=413} [2023-11-29 03:42:40,951 INFO L281 CegarLoopForPetriNet]: 430 programPoint places, -9 predicate places. [2023-11-29 03:42:40,952 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 413 transitions, 866 flow [2023-11-29 03:42:40,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 321.5) internal successors, (1929), 6 states have internal predecessors, (1929), 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) [2023-11-29 03:42:40,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:42:40,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:42:40,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 03:42:40,953 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 03:42:40,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:40,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1020050489, now seen corresponding path program 1 times [2023-11-29 03:42:40,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:40,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77979157] [2023-11-29 03:42:40,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:40,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:41,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:41,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77979157] [2023-11-29 03:42:41,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77979157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:41,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:42:41,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:42:41,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042579968] [2023-11-29 03:42:41,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:41,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:42:41,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:41,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:42:41,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:42:42,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 432 [2023-11-29 03:42:42,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 413 transitions, 866 flow. Second operand has 6 states, 6 states have (on average 285.1666666666667) internal successors, (1711), 6 states have internal predecessors, (1711), 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) [2023-11-29 03:42:42,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:42:42,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 432 [2023-11-29 03:42:42,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:42:42,772 INFO L124 PetriNetUnfolderBase]: 365/1871 cut-off events. [2023-11-29 03:42:42,772 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-29 03:42:42,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2818 conditions, 1871 events. 365/1871 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9364 event pairs, 364 based on Foata normal form. 0/1747 useless extension candidates. Maximal degree in co-relation 2489. Up to 898 conditions per place. [2023-11-29 03:42:42,784 INFO L140 encePairwiseOnDemand]: 414/432 looper letters, 131 selfloop transitions, 15 changer transitions 0/410 dead transitions. [2023-11-29 03:42:42,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 410 transitions, 1152 flow [2023-11-29 03:42:42,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:42:42,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:42:42,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1823 transitions. [2023-11-29 03:42:42,791 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7033179012345679 [2023-11-29 03:42:42,791 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1823 transitions. [2023-11-29 03:42:42,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1823 transitions. [2023-11-29 03:42:42,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:42:42,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1823 transitions. [2023-11-29 03:42:42,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 303.8333333333333) internal successors, (1823), 6 states have internal predecessors, (1823), 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) [2023-11-29 03:42:42,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:42,806 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:42,806 INFO L175 Difference]: Start difference. First operand has 421 places, 413 transitions, 866 flow. Second operand 6 states and 1823 transitions. [2023-11-29 03:42:42,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 410 transitions, 1152 flow [2023-11-29 03:42:42,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 410 transitions, 1122 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:42:42,817 INFO L231 Difference]: Finished difference. Result has 418 places, 410 transitions, 860 flow [2023-11-29 03:42:42,818 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=860, PETRI_PLACES=418, PETRI_TRANSITIONS=410} [2023-11-29 03:42:42,819 INFO L281 CegarLoopForPetriNet]: 430 programPoint places, -12 predicate places. [2023-11-29 03:42:42,819 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 410 transitions, 860 flow [2023-11-29 03:42:42,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 285.1666666666667) internal successors, (1711), 6 states have internal predecessors, (1711), 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) [2023-11-29 03:42:42,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:42:42,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:42:42,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 03:42:42,821 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 03:42:42,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:42,822 INFO L85 PathProgramCache]: Analyzing trace with hash -833200122, now seen corresponding path program 1 times [2023-11-29 03:42:42,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:42,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351425060] [2023-11-29 03:42:42,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:42,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:42,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:43,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:43,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:43,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351425060] [2023-11-29 03:42:43,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351425060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:43,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:42:43,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:42:43,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395891423] [2023-11-29 03:42:43,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:43,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:42:43,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:43,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:42:43,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:42:44,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 432 [2023-11-29 03:42:44,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 410 transitions, 860 flow. Second operand has 6 states, 6 states have (on average 288.6666666666667) internal successors, (1732), 6 states have internal predecessors, (1732), 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) [2023-11-29 03:42:44,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:42:44,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 432 [2023-11-29 03:42:44,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:42:44,737 INFO L124 PetriNetUnfolderBase]: 365/1867 cut-off events. [2023-11-29 03:42:44,738 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-29 03:42:44,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2810 conditions, 1867 events. 365/1867 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9374 event pairs, 364 based on Foata normal form. 0/1747 useless extension candidates. Maximal degree in co-relation 2485. Up to 894 conditions per place. [2023-11-29 03:42:44,751 INFO L140 encePairwiseOnDemand]: 414/432 looper letters, 128 selfloop transitions, 15 changer transitions 0/407 dead transitions. [2023-11-29 03:42:44,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 407 transitions, 1140 flow [2023-11-29 03:42:44,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:42:44,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:42:44,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1838 transitions. [2023-11-29 03:42:44,758 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7091049382716049 [2023-11-29 03:42:44,758 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1838 transitions. [2023-11-29 03:42:44,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1838 transitions. [2023-11-29 03:42:44,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:42:44,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1838 transitions. [2023-11-29 03:42:44,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 306.3333333333333) internal successors, (1838), 6 states have internal predecessors, (1838), 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) [2023-11-29 03:42:44,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:44,771 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:44,772 INFO L175 Difference]: Start difference. First operand has 418 places, 410 transitions, 860 flow. Second operand 6 states and 1838 transitions. [2023-11-29 03:42:44,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 407 transitions, 1140 flow [2023-11-29 03:42:44,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 407 transitions, 1110 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:42:44,782 INFO L231 Difference]: Finished difference. Result has 415 places, 407 transitions, 854 flow [2023-11-29 03:42:44,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=854, PETRI_PLACES=415, PETRI_TRANSITIONS=407} [2023-11-29 03:42:44,784 INFO L281 CegarLoopForPetriNet]: 430 programPoint places, -15 predicate places. [2023-11-29 03:42:44,784 INFO L495 AbstractCegarLoop]: Abstraction has has 415 places, 407 transitions, 854 flow [2023-11-29 03:42:44,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 288.6666666666667) internal successors, (1732), 6 states have internal predecessors, (1732), 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) [2023-11-29 03:42:44,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:42:44,785 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:42:44,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 03:42:44,786 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 03:42:44,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:44,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1909078961, now seen corresponding path program 1 times [2023-11-29 03:42:44,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:44,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406432763] [2023-11-29 03:42:44,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:44,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:45,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:45,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:45,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406432763] [2023-11-29 03:42:45,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406432763] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:42:45,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813698043] [2023-11-29 03:42:45,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:45,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:45,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:45,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:45,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:42:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:45,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:42:45,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:45,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:45,520 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:45,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:45,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813698043] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:42:45,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:42:45,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-29 03:42:45,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799103489] [2023-11-29 03:42:45,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:45,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:42:45,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:45,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:42:45,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:42:45,846 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 432 [2023-11-29 03:42:45,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 407 transitions, 854 flow. Second operand has 10 states, 10 states have (on average 415.8) internal successors, (4158), 10 states have internal predecessors, (4158), 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) [2023-11-29 03:42:45,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:42:45,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 432 [2023-11-29 03:42:45,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:42:45,992 INFO L124 PetriNetUnfolderBase]: 7/697 cut-off events. [2023-11-29 03:42:45,993 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 03:42:45,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 768 conditions, 697 events. 7/697 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 396 event pairs, 6 based on Foata normal form. 2/677 useless extension candidates. Maximal degree in co-relation 397. Up to 24 conditions per place. [2023-11-29 03:42:45,995 INFO L140 encePairwiseOnDemand]: 426/432 looper letters, 14 selfloop transitions, 9 changer transitions 0/415 dead transitions. [2023-11-29 03:42:45,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 415 transitions, 918 flow [2023-11-29 03:42:45,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:42:45,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 03:42:46,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3751 transitions. [2023-11-29 03:42:46,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9647633744855967 [2023-11-29 03:42:46,005 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3751 transitions. [2023-11-29 03:42:46,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3751 transitions. [2023-11-29 03:42:46,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:42:46,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3751 transitions. [2023-11-29 03:42:46,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 416.77777777777777) internal successors, (3751), 9 states have internal predecessors, (3751), 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) [2023-11-29 03:42:46,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 432.0) internal successors, (4320), 10 states have internal predecessors, (4320), 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) [2023-11-29 03:42:46,021 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 432.0) internal successors, (4320), 10 states have internal predecessors, (4320), 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) [2023-11-29 03:42:46,021 INFO L175 Difference]: Start difference. First operand has 415 places, 407 transitions, 854 flow. Second operand 9 states and 3751 transitions. [2023-11-29 03:42:46,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 415 transitions, 918 flow [2023-11-29 03:42:46,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 415 transitions, 888 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:42:46,028 INFO L231 Difference]: Finished difference. Result has 421 places, 413 transitions, 874 flow [2023-11-29 03:42:46,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=874, PETRI_PLACES=421, PETRI_TRANSITIONS=413} [2023-11-29 03:42:46,030 INFO L281 CegarLoopForPetriNet]: 430 programPoint places, -9 predicate places. [2023-11-29 03:42:46,030 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 413 transitions, 874 flow [2023-11-29 03:42:46,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 415.8) internal successors, (4158), 10 states have internal predecessors, (4158), 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) [2023-11-29 03:42:46,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:42:46,033 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:42:46,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:42:46,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 03:42:46,234 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 03:42:46,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:46,234 INFO L85 PathProgramCache]: Analyzing trace with hash 360401501, now seen corresponding path program 2 times [2023-11-29 03:42:46,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:46,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760243412] [2023-11-29 03:42:46,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:46,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:47,000 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:47,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:47,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760243412] [2023-11-29 03:42:47,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760243412] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:42:47,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417206524] [2023-11-29 03:42:47,001 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:42:47,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:47,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:47,002 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:47,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:42:47,315 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:42:47,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:42:47,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 03:42:47,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:47,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 03:42:47,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-29 03:42:47,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:42:47,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-11-29 03:42:47,452 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:42:47,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-11-29 03:42:47,483 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2023-11-29 03:42:47,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:42:47,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417206524] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:47,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:42:47,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2023-11-29 03:42:47,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122212282] [2023-11-29 03:42:47,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:47,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:42:47,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:47,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:42:47,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:42:48,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 432 [2023-11-29 03:42:48,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 413 transitions, 874 flow. Second operand has 6 states, 6 states have (on average 338.3333333333333) internal successors, (2030), 6 states have internal predecessors, (2030), 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) [2023-11-29 03:42:48,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:42:48,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 432 [2023-11-29 03:42:48,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:42:48,858 INFO L124 PetriNetUnfolderBase]: 257/2019 cut-off events. [2023-11-29 03:42:48,858 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-29 03:42:48,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2722 conditions, 2019 events. 257/2019 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10251 event pairs, 34 based on Foata normal form. 0/1892 useless extension candidates. Maximal degree in co-relation 2278. Up to 523 conditions per place. [2023-11-29 03:42:48,867 INFO L140 encePairwiseOnDemand]: 403/432 looper letters, 99 selfloop transitions, 75 changer transitions 0/490 dead transitions. [2023-11-29 03:42:48,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 490 transitions, 1376 flow [2023-11-29 03:42:48,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:42:48,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:42:48,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2162 transitions. [2023-11-29 03:42:48,875 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8341049382716049 [2023-11-29 03:42:48,875 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2162 transitions. [2023-11-29 03:42:48,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2162 transitions. [2023-11-29 03:42:48,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:42:48,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2162 transitions. [2023-11-29 03:42:48,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 360.3333333333333) internal successors, (2162), 6 states have internal predecessors, (2162), 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) [2023-11-29 03:42:48,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:48,889 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:48,889 INFO L175 Difference]: Start difference. First operand has 421 places, 413 transitions, 874 flow. Second operand 6 states and 2162 transitions. [2023-11-29 03:42:48,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 490 transitions, 1376 flow [2023-11-29 03:42:48,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 490 transitions, 1370 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-29 03:42:48,903 INFO L231 Difference]: Finished difference. Result has 429 places, 481 transitions, 1348 flow [2023-11-29 03:42:48,904 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=866, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1348, PETRI_PLACES=429, PETRI_TRANSITIONS=481} [2023-11-29 03:42:48,905 INFO L281 CegarLoopForPetriNet]: 430 programPoint places, -1 predicate places. [2023-11-29 03:42:48,905 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 481 transitions, 1348 flow [2023-11-29 03:42:48,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 338.3333333333333) internal successors, (2030), 6 states have internal predecessors, (2030), 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) [2023-11-29 03:42:48,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:42:48,907 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:42:48,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:42:49,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 03:42:49,108 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 03:42:49,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:49,108 INFO L85 PathProgramCache]: Analyzing trace with hash -897383726, now seen corresponding path program 1 times [2023-11-29 03:42:49,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:49,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29173465] [2023-11-29 03:42:49,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:49,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:49,845 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:49,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:49,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29173465] [2023-11-29 03:42:49,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29173465] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:42:49,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302499755] [2023-11-29 03:42:49,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:49,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:49,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:49,848 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:49,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:42:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:50,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 1755 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:42:50,451 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:50,846 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:50,846 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:51,260 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:51,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302499755] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:42:51,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:42:51,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-29 03:42:51,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478799057] [2023-11-29 03:42:51,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:51,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 03:42:51,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:51,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 03:42:51,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:42:51,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 432 [2023-11-29 03:42:51,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 481 transitions, 1348 flow. Second operand has 18 states, 18 states have (on average 415.8888888888889) internal successors, (7486), 18 states have internal predecessors, (7486), 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) [2023-11-29 03:42:51,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:42:51,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 432 [2023-11-29 03:42:51,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:42:52,164 INFO L124 PetriNetUnfolderBase]: 136/2127 cut-off events. [2023-11-29 03:42:52,164 INFO L125 PetriNetUnfolderBase]: For 184/204 co-relation queries the response was YES. [2023-11-29 03:42:52,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2818 conditions, 2127 events. 136/2127 cut-off events. For 184/204 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 7455 event pairs, 21 based on Foata normal form. 4/2043 useless extension candidates. Maximal degree in co-relation 1979. Up to 207 conditions per place. [2023-11-29 03:42:52,176 INFO L140 encePairwiseOnDemand]: 426/432 looper letters, 19 selfloop transitions, 21 changer transitions 0/499 dead transitions. [2023-11-29 03:42:52,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 499 transitions, 1516 flow [2023-11-29 03:42:52,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 03:42:52,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 03:42:52,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8737 transitions. [2023-11-29 03:42:52,199 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9630731922398589 [2023-11-29 03:42:52,199 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 8737 transitions. [2023-11-29 03:42:52,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 8737 transitions. [2023-11-29 03:42:52,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:42:52,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 8737 transitions. [2023-11-29 03:42:52,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 416.04761904761904) internal successors, (8737), 21 states have internal predecessors, (8737), 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) [2023-11-29 03:42:52,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 432.0) internal successors, (9504), 22 states have internal predecessors, (9504), 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) [2023-11-29 03:42:52,247 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 432.0) internal successors, (9504), 22 states have internal predecessors, (9504), 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) [2023-11-29 03:42:52,247 INFO L175 Difference]: Start difference. First operand has 429 places, 481 transitions, 1348 flow. Second operand 21 states and 8737 transitions. [2023-11-29 03:42:52,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 499 transitions, 1516 flow [2023-11-29 03:42:52,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 499 transitions, 1516 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 03:42:52,263 INFO L231 Difference]: Finished difference. Result has 454 places, 494 transitions, 1478 flow [2023-11-29 03:42:52,264 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=1348, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1478, PETRI_PLACES=454, PETRI_TRANSITIONS=494} [2023-11-29 03:42:52,265 INFO L281 CegarLoopForPetriNet]: 430 programPoint places, 24 predicate places. [2023-11-29 03:42:52,265 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 494 transitions, 1478 flow [2023-11-29 03:42:52,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 415.8888888888889) internal successors, (7486), 18 states have internal predecessors, (7486), 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) [2023-11-29 03:42:52,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:42:52,268 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:42:52,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 03:42:52,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 03:42:52,469 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 03:42:52,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:52,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1601609686, now seen corresponding path program 2 times [2023-11-29 03:42:52,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:52,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622762318] [2023-11-29 03:42:52,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:52,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:54,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:54,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:54,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622762318] [2023-11-29 03:42:54,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622762318] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:42:54,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602071881] [2023-11-29 03:42:54,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:42:54,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:54,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:54,508 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:54,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:42:55,054 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:42:55,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:42:55,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 03:42:55,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:55,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 03:42:55,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-29 03:42:55,167 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:42:55,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-11-29 03:42:55,207 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:42:55,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-11-29 03:42:55,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2233 trivial. 0 not checked. [2023-11-29 03:42:55,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:42:55,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602071881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:55,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:42:55,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-29 03:42:55,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120636639] [2023-11-29 03:42:55,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:55,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:42:55,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:55,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:42:55,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:42:56,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 432 [2023-11-29 03:42:56,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 494 transitions, 1478 flow. Second operand has 6 states, 6 states have (on average 347.0) internal successors, (2082), 6 states have internal predecessors, (2082), 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) [2023-11-29 03:42:56,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:42:56,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 432 [2023-11-29 03:42:56,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:42:56,733 INFO L124 PetriNetUnfolderBase]: 212/2302 cut-off events. [2023-11-29 03:42:56,734 INFO L125 PetriNetUnfolderBase]: For 446/475 co-relation queries the response was YES. [2023-11-29 03:42:56,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3602 conditions, 2302 events. 212/2302 cut-off events. For 446/475 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9273 event pairs, 54 based on Foata normal form. 0/2200 useless extension candidates. Maximal degree in co-relation 2558. Up to 572 conditions per place. [2023-11-29 03:42:56,744 INFO L140 encePairwiseOnDemand]: 426/432 looper letters, 150 selfloop transitions, 5 changer transitions 0/493 dead transitions. [2023-11-29 03:42:56,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 493 transitions, 1786 flow [2023-11-29 03:42:56,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:42:56,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:42:56,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2113 transitions. [2023-11-29 03:42:56,749 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8152006172839507 [2023-11-29 03:42:56,749 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2113 transitions. [2023-11-29 03:42:56,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2113 transitions. [2023-11-29 03:42:56,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:42:56,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2113 transitions. [2023-11-29 03:42:56,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 352.1666666666667) internal successors, (2113), 6 states have internal predecessors, (2113), 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) [2023-11-29 03:42:56,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:56,759 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:42:56,759 INFO L175 Difference]: Start difference. First operand has 454 places, 494 transitions, 1478 flow. Second operand 6 states and 2113 transitions. [2023-11-29 03:42:56,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 493 transitions, 1786 flow [2023-11-29 03:42:56,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 493 transitions, 1762 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-29 03:42:56,769 INFO L231 Difference]: Finished difference. Result has 452 places, 493 transitions, 1462 flow [2023-11-29 03:42:56,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=1452, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1462, PETRI_PLACES=452, PETRI_TRANSITIONS=493} [2023-11-29 03:42:56,771 INFO L281 CegarLoopForPetriNet]: 430 programPoint places, 22 predicate places. [2023-11-29 03:42:56,771 INFO L495 AbstractCegarLoop]: Abstraction has has 452 places, 493 transitions, 1462 flow [2023-11-29 03:42:56,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 347.0) internal successors, (2082), 6 states have internal predecessors, (2082), 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) [2023-11-29 03:42:56,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:42:56,773 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:42:56,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 03:42:56,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:56,974 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 03:42:56,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:56,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1548285974, now seen corresponding path program 1 times [2023-11-29 03:42:56,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:56,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679734036] [2023-11-29 03:42:56,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:56,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:58,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:42:58,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:58,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679734036] [2023-11-29 03:42:58,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679734036] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:42:58,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881699860] [2023-11-29 03:42:58,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:58,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:58,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:58,968 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:58,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:42:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:59,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 3675 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:42:59,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:43:00,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:43:00,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:43:01,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:43:01,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881699860] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:43:01,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:43:01,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-29 03:43:01,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382335876] [2023-11-29 03:43:01,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:43:01,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 03:43:01,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:43:01,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 03:43:01,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-29 03:43:01,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 432 [2023-11-29 03:43:01,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 493 transitions, 1462 flow. Second operand has 23 states, 23 states have (on average 416.0869565217391) internal successors, (9570), 23 states have internal predecessors, (9570), 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) [2023-11-29 03:43:01,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:43:01,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 432 [2023-11-29 03:43:01,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:43:02,607 INFO L124 PetriNetUnfolderBase]: 136/2444 cut-off events. [2023-11-29 03:43:02,608 INFO L125 PetriNetUnfolderBase]: For 301/321 co-relation queries the response was YES. [2023-11-29 03:43:02,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3216 conditions, 2444 events. 136/2444 cut-off events. For 301/321 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 7402 event pairs, 21 based on Foata normal form. 3/2360 useless extension candidates. Maximal degree in co-relation 1990. Up to 207 conditions per place. [2023-11-29 03:43:02,619 INFO L140 encePairwiseOnDemand]: 426/432 looper letters, 22 selfloop transitions, 30 changer transitions 0/510 dead transitions. [2023-11-29 03:43:02,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 510 transitions, 1688 flow [2023-11-29 03:43:02,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-29 03:43:02,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-29 03:43:02,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 12474 transitions. [2023-11-29 03:43:02,635 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9625 [2023-11-29 03:43:02,635 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 12474 transitions. [2023-11-29 03:43:02,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 12474 transitions. [2023-11-29 03:43:02,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:43:02,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 12474 transitions. [2023-11-29 03:43:02,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 415.8) internal successors, (12474), 30 states have internal predecessors, (12474), 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) [2023-11-29 03:43:02,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 432.0) internal successors, (13392), 31 states have internal predecessors, (13392), 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) [2023-11-29 03:43:02,666 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 432.0) internal successors, (13392), 31 states have internal predecessors, (13392), 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) [2023-11-29 03:43:02,667 INFO L175 Difference]: Start difference. First operand has 452 places, 493 transitions, 1462 flow. Second operand 30 states and 12474 transitions. [2023-11-29 03:43:02,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 510 transitions, 1688 flow [2023-11-29 03:43:02,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 510 transitions, 1678 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:43:02,685 INFO L231 Difference]: Finished difference. Result has 480 places, 503 transitions, 1604 flow [2023-11-29 03:43:02,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=1452, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1604, PETRI_PLACES=480, PETRI_TRANSITIONS=503} [2023-11-29 03:43:02,687 INFO L281 CegarLoopForPetriNet]: 430 programPoint places, 50 predicate places. [2023-11-29 03:43:02,687 INFO L495 AbstractCegarLoop]: Abstraction has has 480 places, 503 transitions, 1604 flow [2023-11-29 03:43:02,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 416.0869565217391) internal successors, (9570), 23 states have internal predecessors, (9570), 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) [2023-11-29 03:43:02,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:02,690 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:02,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 03:43:02,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:43:02,891 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 03:43:02,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:02,891 INFO L85 PathProgramCache]: Analyzing trace with hash 2021504916, now seen corresponding path program 2 times [2023-11-29 03:43:02,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:02,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586638444] [2023-11-29 03:43:02,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:02,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:43:07,376 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2023-11-29 03:43:07,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:43:07,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586638444] [2023-11-29 03:43:07,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586638444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:43:07,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:43:07,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:43:07,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326742081] [2023-11-29 03:43:07,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:43:07,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:43:07,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:43:07,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:43:07,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:43:08,036 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 432 [2023-11-29 03:43:08,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 503 transitions, 1604 flow. Second operand has 6 states, 6 states have (on average 348.5) internal successors, (2091), 6 states have internal predecessors, (2091), 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) [2023-11-29 03:43:08,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:43:08,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 432 [2023-11-29 03:43:08,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:43:09,424 INFO L124 PetriNetUnfolderBase]: 530/3525 cut-off events. [2023-11-29 03:43:09,424 INFO L125 PetriNetUnfolderBase]: For 931/994 co-relation queries the response was YES. [2023-11-29 03:43:09,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6013 conditions, 3525 events. 530/3525 cut-off events. For 931/994 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 16284 event pairs, 92 based on Foata normal form. 16/3385 useless extension candidates. Maximal degree in co-relation 4506. Up to 1097 conditions per place. [2023-11-29 03:43:09,440 INFO L140 encePairwiseOnDemand]: 409/432 looper letters, 163 selfloop transitions, 130 changer transitions 0/640 dead transitions. [2023-11-29 03:43:09,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 640 transitions, 2840 flow [2023-11-29 03:43:09,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:43:09,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:43:09,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2191 transitions. [2023-11-29 03:43:09,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8452932098765432 [2023-11-29 03:43:09,443 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2191 transitions. [2023-11-29 03:43:09,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2191 transitions. [2023-11-29 03:43:09,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:43:09,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2191 transitions. [2023-11-29 03:43:09,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 365.1666666666667) internal successors, (2191), 6 states have internal predecessors, (2191), 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) [2023-11-29 03:43:09,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:43:09,449 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:43:09,449 INFO L175 Difference]: Start difference. First operand has 480 places, 503 transitions, 1604 flow. Second operand 6 states and 2191 transitions. [2023-11-29 03:43:09,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 640 transitions, 2840 flow [2023-11-29 03:43:09,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 640 transitions, 2794 flow, removed 5 selfloop flow, removed 18 redundant places. [2023-11-29 03:43:09,464 INFO L231 Difference]: Finished difference. Result has 472 places, 632 transitions, 2786 flow [2023-11-29 03:43:09,465 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=1558, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2786, PETRI_PLACES=472, PETRI_TRANSITIONS=632} [2023-11-29 03:43:09,465 INFO L281 CegarLoopForPetriNet]: 430 programPoint places, 42 predicate places. [2023-11-29 03:43:09,465 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 632 transitions, 2786 flow [2023-11-29 03:43:09,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 348.5) internal successors, (2091), 6 states have internal predecessors, (2091), 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) [2023-11-29 03:43:09,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:09,466 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:09,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 03:43:09,466 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 03:43:09,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:09,467 INFO L85 PathProgramCache]: Analyzing trace with hash 730751733, now seen corresponding path program 1 times [2023-11-29 03:43:09,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:09,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374641105] [2023-11-29 03:43:09,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:09,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:43:13,632 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2023-11-29 03:43:13,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:43:13,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374641105] [2023-11-29 03:43:13,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374641105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:43:13,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:43:13,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:43:13,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114545785] [2023-11-29 03:43:13,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:43:13,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:43:13,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:43:13,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:43:13,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:43:14,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 432 [2023-11-29 03:43:14,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 632 transitions, 2786 flow. Second operand has 6 states, 6 states have (on average 347.0) internal successors, (2082), 6 states have internal predecessors, (2082), 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) [2023-11-29 03:43:14,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:43:14,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 432 [2023-11-29 03:43:14,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:43:16,660 INFO L124 PetriNetUnfolderBase]: 806/4337 cut-off events. [2023-11-29 03:43:16,660 INFO L125 PetriNetUnfolderBase]: For 3315/3531 co-relation queries the response was YES. [2023-11-29 03:43:16,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8933 conditions, 4337 events. 806/4337 cut-off events. For 3315/3531 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 22752 event pairs, 74 based on Foata normal form. 78/4240 useless extension candidates. Maximal degree in co-relation 7443. Up to 1357 conditions per place. [2023-11-29 03:43:16,683 INFO L140 encePairwiseOnDemand]: 409/432 looper letters, 285 selfloop transitions, 131 changer transitions 5/770 dead transitions. [2023-11-29 03:43:16,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 770 transitions, 4528 flow [2023-11-29 03:43:16,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:43:16,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:43:16,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2182 transitions. [2023-11-29 03:43:16,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.841820987654321 [2023-11-29 03:43:16,688 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2182 transitions. [2023-11-29 03:43:16,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2182 transitions. [2023-11-29 03:43:16,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:43:16,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2182 transitions. [2023-11-29 03:43:16,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 363.6666666666667) internal successors, (2182), 6 states have internal predecessors, (2182), 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) [2023-11-29 03:43:16,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:43:16,700 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:43:16,701 INFO L175 Difference]: Start difference. First operand has 472 places, 632 transitions, 2786 flow. Second operand 6 states and 2182 transitions. [2023-11-29 03:43:16,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 770 transitions, 4528 flow [2023-11-29 03:43:16,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 770 transitions, 4528 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 03:43:16,734 INFO L231 Difference]: Finished difference. Result has 482 places, 760 transitions, 4266 flow [2023-11-29 03:43:16,735 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=2786, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=594, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4266, PETRI_PLACES=482, PETRI_TRANSITIONS=760} [2023-11-29 03:43:16,736 INFO L281 CegarLoopForPetriNet]: 430 programPoint places, 52 predicate places. [2023-11-29 03:43:16,736 INFO L495 AbstractCegarLoop]: Abstraction has has 482 places, 760 transitions, 4266 flow [2023-11-29 03:43:16,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 347.0) internal successors, (2082), 6 states have internal predecessors, (2082), 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) [2023-11-29 03:43:16,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:16,737 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:16,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 03:43:16,738 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 03:43:16,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:16,738 INFO L85 PathProgramCache]: Analyzing trace with hash -103979776, now seen corresponding path program 1 times [2023-11-29 03:43:16,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:16,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26654616] [2023-11-29 03:43:16,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:16,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:43:20,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2023-11-29 03:43:20,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:43:20,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26654616] [2023-11-29 03:43:20,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26654616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:43:20,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:43:20,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:43:20,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410457296] [2023-11-29 03:43:20,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:43:20,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:43:20,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:43:20,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:43:20,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:43:21,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 432 [2023-11-29 03:43:21,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 760 transitions, 4266 flow. Second operand has 6 states, 6 states have (on average 315.6666666666667) internal successors, (1894), 6 states have internal predecessors, (1894), 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) [2023-11-29 03:43:21,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:43:21,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 432 [2023-11-29 03:43:21,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:43:24,061 INFO L124 PetriNetUnfolderBase]: 1308/5700 cut-off events. [2023-11-29 03:43:24,061 INFO L125 PetriNetUnfolderBase]: For 4861/4918 co-relation queries the response was YES. [2023-11-29 03:43:24,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13637 conditions, 5700 events. 1308/5700 cut-off events. For 4861/4918 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 34388 event pairs, 369 based on Foata normal form. 11/5476 useless extension candidates. Maximal degree in co-relation 12063. Up to 2597 conditions per place. [2023-11-29 03:43:24,087 INFO L140 encePairwiseOnDemand]: 413/432 looper letters, 364 selfloop transitions, 84 changer transitions 0/839 dead transitions. [2023-11-29 03:43:24,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 839 transitions, 5560 flow [2023-11-29 03:43:24,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:43:24,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:43:24,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1990 transitions. [2023-11-29 03:43:24,090 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7677469135802469 [2023-11-29 03:43:24,090 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1990 transitions. [2023-11-29 03:43:24,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1990 transitions. [2023-11-29 03:43:24,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:43:24,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1990 transitions. [2023-11-29 03:43:24,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 331.6666666666667) internal successors, (1990), 6 states have internal predecessors, (1990), 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) [2023-11-29 03:43:24,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:43:24,096 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 432.0) internal successors, (3024), 7 states have internal predecessors, (3024), 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) [2023-11-29 03:43:24,096 INFO L175 Difference]: Start difference. First operand has 482 places, 760 transitions, 4266 flow. Second operand 6 states and 1990 transitions. [2023-11-29 03:43:24,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 839 transitions, 5560 flow [2023-11-29 03:43:24,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 839 transitions, 5306 flow, removed 127 selfloop flow, removed 0 redundant places. [2023-11-29 03:43:24,124 INFO L231 Difference]: Finished difference. Result has 491 places, 831 transitions, 4802 flow [2023-11-29 03:43:24,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=4018, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=760, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=712, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4802, PETRI_PLACES=491, PETRI_TRANSITIONS=831} [2023-11-29 03:43:24,125 INFO L281 CegarLoopForPetriNet]: 430 programPoint places, 61 predicate places. [2023-11-29 03:43:24,125 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 831 transitions, 4802 flow [2023-11-29 03:43:24,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 315.6666666666667) internal successors, (1894), 6 states have internal predecessors, (1894), 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) [2023-11-29 03:43:24,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:24,126 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:24,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 03:43:24,126 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-29 03:43:24,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:24,126 INFO L85 PathProgramCache]: Analyzing trace with hash -197838042, now seen corresponding path program 1 times [2023-11-29 03:43:24,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:24,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096203508] [2023-11-29 03:43:24,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:24,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:44:02,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 534 proven. 1069 refuted. 0 times theorem prover too weak. 3177 trivial. 0 not checked. [2023-11-29 03:44:02,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:44:02,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096203508] [2023-11-29 03:44:02,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096203508] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:44:02,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724605374] [2023-11-29 03:44:02,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:44:02,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:44:02,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:44:02,827 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:44:02,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7ff2e8-7f69-4f36-8e7b-fdf8d56c6811/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:44:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:44:08,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 4989 conjuncts, 255 conjunts are in the unsatisfiable core [2023-11-29 03:44:08,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:44:08,329 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-29 03:44:08,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-29 03:44:08,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 03:44:08,744 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-29 03:44:08,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-11-29 03:44:08,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-29 03:44:08,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2023-11-29 03:44:09,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2023-11-29 03:44:09,946 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2023-11-29 03:44:09,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2023-11-29 03:44:10,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 03:44:10,795 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2023-11-29 03:44:10,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2023-11-29 03:44:11,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2023-11-29 03:44:11,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2023-11-29 03:44:11,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2023-11-29 03:44:12,485 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-11-29 03:44:12,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-11-29 03:44:13,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 03:44:13,528 INFO L349 Elim1Store]: treesize reduction 72, result has 35.7 percent of original size [2023-11-29 03:44:13,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 57 [2023-11-29 03:44:13,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 39 [2023-11-29 03:44:14,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 39 [2023-11-29 03:44:14,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2023-11-29 03:44:16,626 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2023-11-29 03:44:16,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2023-11-29 03:44:18,060 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2023-11-29 03:44:18,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2023-11-29 03:44:21,353 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2023-11-29 03:44:21,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2023-11-29 03:44:22,449 INFO L349 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2023-11-29 03:44:22,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 32 treesize of output 57 [2023-11-29 03:44:26,720 INFO L349 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2023-11-29 03:44:26,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 69 [2023-11-29 03:44:30,304 INFO L349 Elim1Store]: treesize reduction 120, result has 31.4 percent of original size [2023-11-29 03:44:30,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 76 [2023-11-29 03:44:39,308 INFO L349 Elim1Store]: treesize reduction 120, result has 31.4 percent of original size [2023-11-29 03:44:39,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 76 [2023-11-29 03:44:42,819 INFO L349 Elim1Store]: treesize reduction 108, result has 33.7 percent of original size [2023-11-29 03:44:42,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 42 treesize of output 81 [2023-11-29 03:45:03,816 INFO L349 Elim1Store]: treesize reduction 140, result has 31.4 percent of original size [2023-11-29 03:45:03,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 49 treesize of output 88 [2023-11-29 03:45:07,798 INFO L349 Elim1Store]: treesize reduction 140, result has 31.4 percent of original size [2023-11-29 03:45:07,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 49 treesize of output 88 [2023-11-29 03:45:33,900 INFO L349 Elim1Store]: treesize reduction 98, result has 26.9 percent of original size [2023-11-29 03:45:33,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 42 treesize of output 62 [2023-11-29 03:45:46,911 INFO L349 Elim1Store]: treesize reduction 98, result has 26.9 percent of original size [2023-11-29 03:45:46,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 42 treesize of output 62 [2023-11-29 03:46:10,006 INFO L349 Elim1Store]: treesize reduction 98, result has 26.9 percent of original size [2023-11-29 03:46:10,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 42 treesize of output 62 [2023-11-29 03:46:24,700 INFO L349 Elim1Store]: treesize reduction 98, result has 26.9 percent of original size [2023-11-29 03:46:24,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 42 treesize of output 62 [2023-11-29 03:46:49,138 INFO L349 Elim1Store]: treesize reduction 84, result has 43.2 percent of original size [2023-11-29 03:46:49,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 44 treesize of output 85 [2023-11-29 03:47:11,132 WARN L293 SmtUtils]: Spent 13.44s on a formula simplification. DAG size of input: 3076 DAG size of output: 337 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-29 03:47:11,132 INFO L349 Elim1Store]: treesize reduction 5772, result has 9.8 percent of original size [2023-11-29 03:47:11,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 38 select indices, 38 select index equivalence classes, 0 disjoint index pairs (out of 703 index pairs), introduced 38 new quantified variables, introduced 740 case distinctions, treesize of input 652 treesize of output 1197 [2023-11-29 03:55:47,551 WARN L293 SmtUtils]: Spent 6.06s on a formula simplification. DAG size of input: 442 DAG size of output: 443 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)