./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12f73250-f4ad-4906-9d92-0e6faaf04700/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12f73250-f4ad-4906-9d92-0e6faaf04700/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12f73250-f4ad-4906-9d92-0e6faaf04700/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12f73250-f4ad-4906-9d92-0e6faaf04700/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12f73250-f4ad-4906-9d92-0e6faaf04700/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12f73250-f4ad-4906-9d92-0e6faaf04700/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c74b9abfd84bef3aa9e712193319c6938e59ac72c91a2b202dc32aee3a54e2e3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:02:57,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:02:57,804 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12f73250-f4ad-4906-9d92-0e6faaf04700/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 12:02:57,815 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:02:57,817 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:02:57,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:02:57,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:02:57,855 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:02:57,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:02:57,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:02:57,864 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:02:57,865 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:02:57,865 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:02:57,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:02:57,868 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:02:57,868 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:02:57,869 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:02:57,869 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:02:57,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:02:57,870 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:02:57,871 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:02:57,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:02:57,872 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 12:02:57,872 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:02:57,873 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:02:57,873 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:02:57,874 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:02:57,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:02:57,875 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:02:57,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:02:57,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:57,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:02:57,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:02:57,879 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:02:57,879 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:02:57,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:02:57,880 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:02:57,880 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:02:57,880 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:02:57,881 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:02:57,881 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:02:57,881 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_12f73250-f4ad-4906-9d92-0e6faaf04700/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12f73250-f4ad-4906-9d92-0e6faaf04700/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c74b9abfd84bef3aa9e712193319c6938e59ac72c91a2b202dc32aee3a54e2e3 [2023-11-26 12:02:58,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:02:58,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:02:58,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:02:58,267 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:02:58,267 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:02:58,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12f73250-f4ad-4906-9d92-0e6faaf04700/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2023-11-26 12:03:01,569 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:03:01,943 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:03:01,944 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12f73250-f4ad-4906-9d92-0e6faaf04700/sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2023-11-26 12:03:01,981 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12f73250-f4ad-4906-9d92-0e6faaf04700/bin/uautomizer-verify-VRDe98Ueme/data/900b1ef6c/a4cd0fdb77bc489fba6d8022cbb46470/FLAG637c5c329 [2023-11-26 12:03:01,998 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12f73250-f4ad-4906-9d92-0e6faaf04700/bin/uautomizer-verify-VRDe98Ueme/data/900b1ef6c/a4cd0fdb77bc489fba6d8022cbb46470 [2023-11-26 12:03:02,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:03:02,002 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:03:02,004 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:02,004 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:03:02,010 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:03:02,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:01" (1/1) ... [2023-11-26 12:03:02,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377650d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:02, skipping insertion in model container [2023-11-26 12:03:02,013 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:01" (1/1) ... [2023-11-26 12:03:02,078 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:03:02,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:02,530 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:03:02,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:02,685 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:03:02,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:02 WrapperNode [2023-11-26 12:03:02,685 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:02,687 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:02,687 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:03:02,688 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:03:02,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:02" (1/1) ... [2023-11-26 12:03:02,731 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:02" (1/1) ... [2023-11-26 12:03:02,792 INFO L138 Inliner]: procedures = 190, calls = 33, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 214 [2023-11-26 12:03:02,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:02,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:03:02,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:03:02,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:03:02,807 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:02" (1/1) ... [2023-11-26 12:03:02,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:02" (1/1) ... [2023-11-26 12:03:02,828 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:02" (1/1) ... [2023-11-26 12:03:02,833 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:02" (1/1) ... [2023-11-26 12:03:02,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:02" (1/1) ... [2023-11-26 12:03:02,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:02" (1/1) ... [2023-11-26 12:03:02,916 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:02" (1/1) ... [2023-11-26 12:03:02,919 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:02" (1/1) ... [2023-11-26 12:03:02,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:03:02,935 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:03:02,935 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:03:02,935 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:03:02,936 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:02" (1/1) ... [2023-11-26 12:03:02,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:03:02,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12f73250-f4ad-4906-9d92-0e6faaf04700/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:03,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12f73250-f4ad-4906-9d92-0e6faaf04700/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:03,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12f73250-f4ad-4906-9d92-0e6faaf04700/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:03:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 12:03:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 12:03:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 12:03:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 12:03:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:03:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:03:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-26 12:03:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-26 12:03:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-26 12:03:03,069 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-26 12:03:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:03:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 12:03:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 12:03:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:03:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:03:03,074 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 12:03:03,278 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:03:03,280 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:03:03,819 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:03:03,850 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:03:03,850 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 12:03:03,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:03 BoogieIcfgContainer [2023-11-26 12:03:03,852 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:03:03,855 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:03:03,856 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:03:03,859 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:03:03,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:03:01" (1/3) ... [2023-11-26 12:03:03,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71bc8777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:03, skipping insertion in model container [2023-11-26 12:03:03,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:02" (2/3) ... [2023-11-26 12:03:03,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71bc8777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:03, skipping insertion in model container [2023-11-26 12:03:03,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:03" (3/3) ... [2023-11-26 12:03:03,863 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_06-ptra_nr.i [2023-11-26 12:03:03,872 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 12:03:03,885 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:03:03,885 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-26 12:03:03,885 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 12:03:03,997 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 12:03:04,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 247 transitions, 498 flow [2023-11-26 12:03:04,188 INFO L124 PetriNetUnfolderBase]: 0/246 cut-off events. [2023-11-26 12:03:04,188 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:03:04,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 246 events. 0/246 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 96 event pairs, 0 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-26 12:03:04,192 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 247 transitions, 498 flow [2023-11-26 12:03:04,207 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 250 places, 246 transitions, 495 flow [2023-11-26 12:03:04,241 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:03:04,258 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;@6be5f636, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:03:04,264 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-26 12:03:04,274 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:03:04,275 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2023-11-26 12:03:04,275 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:03:04,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:04,276 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] [2023-11-26 12:03:04,277 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 12:03:04,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:04,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1912841911, now seen corresponding path program 1 times [2023-11-26 12:03:04,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:04,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984713340] [2023-11-26 12:03:04,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:04,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:05,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:05,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:05,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984713340] [2023-11-26 12:03:05,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984713340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:05,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:05,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:03:05,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249887250] [2023-11-26 12:03:05,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:05,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:03:05,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:05,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:03:05,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:03:05,980 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 247 [2023-11-26 12:03:05,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 246 transitions, 495 flow. Second operand has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:05,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:05,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 247 [2023-11-26 12:03:05,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:06,428 INFO L124 PetriNetUnfolderBase]: 220/1094 cut-off events. [2023-11-26 12:03:06,429 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 12:03:06,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1606 conditions, 1094 events. 220/1094 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5585 event pairs, 220 based on Foata normal form. 0/987 useless extension candidates. Maximal degree in co-relation 1430. Up to 493 conditions per place. [2023-11-26 12:03:06,446 INFO L140 encePairwiseOnDemand]: 229/247 looper letters, 52 selfloop transitions, 15 changer transitions 0/243 dead transitions. [2023-11-26 12:03:06,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 243 transitions, 623 flow [2023-11-26 12:03:06,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:03:06,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:03:06,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1132 transitions. [2023-11-26 12:03:06,473 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7638326585695007 [2023-11-26 12:03:06,474 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1132 transitions. [2023-11-26 12:03:06,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1132 transitions. [2023-11-26 12:03:06,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:06,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1132 transitions. [2023-11-26 12:03:06,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 188.66666666666666) internal successors, (1132), 6 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:06,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:06,503 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:06,505 INFO L175 Difference]: Start difference. First operand has 250 places, 246 transitions, 495 flow. Second operand 6 states and 1132 transitions. [2023-11-26 12:03:06,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 243 transitions, 623 flow [2023-11-26 12:03:06,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 243 transitions, 622 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:03:06,520 INFO L231 Difference]: Finished difference. Result has 251 places, 243 transitions, 518 flow [2023-11-26 12:03:06,523 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=518, PETRI_PLACES=251, PETRI_TRANSITIONS=243} [2023-11-26 12:03:06,529 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, 1 predicate places. [2023-11-26 12:03:06,530 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 243 transitions, 518 flow [2023-11-26 12:03:06,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:06,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:06,532 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] [2023-11-26 12:03:06,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:03:06,533 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 12:03:06,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:06,534 INFO L85 PathProgramCache]: Analyzing trace with hash -784030544, now seen corresponding path program 1 times [2023-11-26 12:03:06,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:06,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493342544] [2023-11-26 12:03:06,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:06,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:06,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:06,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:06,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493342544] [2023-11-26 12:03:06,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493342544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:06,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:06,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:03:06,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538735526] [2023-11-26 12:03:06,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:06,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:03:06,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:06,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:03:06,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:03:07,573 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 247 [2023-11-26 12:03:07,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 243 transitions, 518 flow. Second operand has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:07,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:07,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 247 [2023-11-26 12:03:07,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:07,917 INFO L124 PetriNetUnfolderBase]: 220/1091 cut-off events. [2023-11-26 12:03:07,917 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:03:07,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1618 conditions, 1091 events. 220/1091 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5571 event pairs, 220 based on Foata normal form. 0/987 useless extension candidates. Maximal degree in co-relation 1455. Up to 493 conditions per place. [2023-11-26 12:03:07,927 INFO L140 encePairwiseOnDemand]: 229/247 looper letters, 52 selfloop transitions, 15 changer transitions 0/240 dead transitions. [2023-11-26 12:03:07,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 240 transitions, 646 flow [2023-11-26 12:03:07,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:03:07,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:03:07,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1132 transitions. [2023-11-26 12:03:07,933 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7638326585695007 [2023-11-26 12:03:07,934 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1132 transitions. [2023-11-26 12:03:07,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1132 transitions. [2023-11-26 12:03:07,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:07,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1132 transitions. [2023-11-26 12:03:07,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 188.66666666666666) internal successors, (1132), 6 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:07,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:07,948 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:07,949 INFO L175 Difference]: Start difference. First operand has 251 places, 243 transitions, 518 flow. Second operand 6 states and 1132 transitions. [2023-11-26 12:03:07,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 240 transitions, 646 flow [2023-11-26 12:03:07,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 240 transitions, 616 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 12:03:07,964 INFO L231 Difference]: Finished difference. Result has 248 places, 240 transitions, 512 flow [2023-11-26 12:03:07,965 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=512, PETRI_PLACES=248, PETRI_TRANSITIONS=240} [2023-11-26 12:03:07,966 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, -2 predicate places. [2023-11-26 12:03:07,966 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 240 transitions, 512 flow [2023-11-26 12:03:07,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:07,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:07,971 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] [2023-11-26 12:03:07,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:03:07,973 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 12:03:07,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:07,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1099775688, now seen corresponding path program 1 times [2023-11-26 12:03:07,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:07,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268782591] [2023-11-26 12:03:07,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:07,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:08,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:08,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:08,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268782591] [2023-11-26 12:03:08,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268782591] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:08,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:08,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:08,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384509271] [2023-11-26 12:03:08,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:08,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:08,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:08,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:08,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:08,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 247 [2023-11-26 12:03:08,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 240 transitions, 512 flow. Second operand has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:08,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:08,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 247 [2023-11-26 12:03:08,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:08,176 INFO L124 PetriNetUnfolderBase]: 16/379 cut-off events. [2023-11-26 12:03:08,176 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:03:08,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 379 events. 16/379 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 788 event pairs, 16 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 296. Up to 47 conditions per place. [2023-11-26 12:03:08,179 INFO L140 encePairwiseOnDemand]: 244/247 looper letters, 14 selfloop transitions, 2 changer transitions 0/239 dead transitions. [2023-11-26 12:03:08,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 239 transitions, 542 flow [2023-11-26 12:03:08,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:08,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:08,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 707 transitions. [2023-11-26 12:03:08,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9541160593792173 [2023-11-26 12:03:08,183 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 707 transitions. [2023-11-26 12:03:08,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 707 transitions. [2023-11-26 12:03:08,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:08,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 707 transitions. [2023-11-26 12:03:08,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.66666666666666) internal successors, (707), 3 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:08,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:08,190 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:08,191 INFO L175 Difference]: Start difference. First operand has 248 places, 240 transitions, 512 flow. Second operand 3 states and 707 transitions. [2023-11-26 12:03:08,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 239 transitions, 542 flow [2023-11-26 12:03:08,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 239 transitions, 512 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 12:03:08,199 INFO L231 Difference]: Finished difference. Result has 244 places, 239 transitions, 484 flow [2023-11-26 12:03:08,199 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=484, PETRI_PLACES=244, PETRI_TRANSITIONS=239} [2023-11-26 12:03:08,200 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, -6 predicate places. [2023-11-26 12:03:08,201 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 239 transitions, 484 flow [2023-11-26 12:03:08,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:08,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:08,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:08,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:03:08,203 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 12:03:08,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:08,203 INFO L85 PathProgramCache]: Analyzing trace with hash -652756007, now seen corresponding path program 1 times [2023-11-26 12:03:08,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:08,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005967693] [2023-11-26 12:03:08,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:08,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:08,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:08,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:08,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005967693] [2023-11-26 12:03:08,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005967693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:08,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:08,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:08,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431517035] [2023-11-26 12:03:08,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:08,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:08,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:08,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:08,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:08,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 247 [2023-11-26 12:03:08,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 239 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:08,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:08,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 247 [2023-11-26 12:03:08,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:08,405 INFO L124 PetriNetUnfolderBase]: 24/454 cut-off events. [2023-11-26 12:03:08,405 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 12:03:08,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 454 events. 24/454 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1241 event pairs, 24 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 461. Up to 63 conditions per place. [2023-11-26 12:03:08,408 INFO L140 encePairwiseOnDemand]: 241/247 looper letters, 15 selfloop transitions, 1 changer transitions 0/234 dead transitions. [2023-11-26 12:03:08,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 234 transitions, 506 flow [2023-11-26 12:03:08,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:08,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:08,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 699 transitions. [2023-11-26 12:03:08,412 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9433198380566802 [2023-11-26 12:03:08,412 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 699 transitions. [2023-11-26 12:03:08,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 699 transitions. [2023-11-26 12:03:08,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:08,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 699 transitions. [2023-11-26 12:03:08,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:08,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:08,419 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:08,419 INFO L175 Difference]: Start difference. First operand has 244 places, 239 transitions, 484 flow. Second operand 3 states and 699 transitions. [2023-11-26 12:03:08,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 234 transitions, 506 flow [2023-11-26 12:03:08,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 234 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:08,426 INFO L231 Difference]: Finished difference. Result has 239 places, 234 transitions, 472 flow [2023-11-26 12:03:08,426 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=472, PETRI_PLACES=239, PETRI_TRANSITIONS=234} [2023-11-26 12:03:08,427 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, -11 predicate places. [2023-11-26 12:03:08,428 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 234 transitions, 472 flow [2023-11-26 12:03:08,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:08,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:08,429 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] [2023-11-26 12:03:08,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:03:08,429 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 12:03:08,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:08,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1566696462, now seen corresponding path program 1 times [2023-11-26 12:03:08,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:08,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883311864] [2023-11-26 12:03:08,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:08,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:09,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:09,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:09,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883311864] [2023-11-26 12:03:09,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883311864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:09,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:09,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:03:09,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544741530] [2023-11-26 12:03:09,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:09,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:03:09,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:09,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:03:09,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:03:09,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 247 [2023-11-26 12:03:09,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 234 transitions, 472 flow. Second operand has 6 states, 6 states have (on average 179.16666666666666) internal successors, (1075), 6 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:09,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:09,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 247 [2023-11-26 12:03:09,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:09,701 INFO L124 PetriNetUnfolderBase]: 288/1234 cut-off events. [2023-11-26 12:03:09,702 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:03:09,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1887 conditions, 1234 events. 288/1234 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6632 event pairs, 288 based on Foata normal form. 0/1174 useless extension candidates. Maximal degree in co-relation 1813. Up to 643 conditions per place. [2023-11-26 12:03:09,711 INFO L140 encePairwiseOnDemand]: 241/247 looper letters, 66 selfloop transitions, 5 changer transitions 0/233 dead transitions. [2023-11-26 12:03:09,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 233 transitions, 612 flow [2023-11-26 12:03:09,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:03:09,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:03:09,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1122 transitions. [2023-11-26 12:03:09,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.757085020242915 [2023-11-26 12:03:09,717 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1122 transitions. [2023-11-26 12:03:09,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1122 transitions. [2023-11-26 12:03:09,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:09,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1122 transitions. [2023-11-26 12:03:09,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:09,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:09,728 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:09,728 INFO L175 Difference]: Start difference. First operand has 239 places, 234 transitions, 472 flow. Second operand 6 states and 1122 transitions. [2023-11-26 12:03:09,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 233 transitions, 612 flow [2023-11-26 12:03:09,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 233 transitions, 611 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:03:09,736 INFO L231 Difference]: Finished difference. Result has 242 places, 233 transitions, 479 flow [2023-11-26 12:03:09,736 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=479, PETRI_PLACES=242, PETRI_TRANSITIONS=233} [2023-11-26 12:03:09,739 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, -8 predicate places. [2023-11-26 12:03:09,739 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 233 transitions, 479 flow [2023-11-26 12:03:09,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.16666666666666) internal successors, (1075), 6 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:09,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:09,741 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] [2023-11-26 12:03:09,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:03:09,742 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 12:03:09,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:09,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1018168467, now seen corresponding path program 1 times [2023-11-26 12:03:09,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:09,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158874012] [2023-11-26 12:03:09,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:09,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:09,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:09,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:09,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158874012] [2023-11-26 12:03:09,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158874012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:09,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:09,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:09,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398763539] [2023-11-26 12:03:09,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:09,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:09,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:09,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:09,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:09,939 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 247 [2023-11-26 12:03:09,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 233 transitions, 479 flow. Second operand has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:09,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:09,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 247 [2023-11-26 12:03:09,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:09,994 INFO L124 PetriNetUnfolderBase]: 6/298 cut-off events. [2023-11-26 12:03:09,994 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:03:09,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 298 events. 6/298 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 399 event pairs, 6 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 269. Up to 23 conditions per place. [2023-11-26 12:03:09,998 INFO L140 encePairwiseOnDemand]: 244/247 looper letters, 10 selfloop transitions, 2 changer transitions 0/232 dead transitions. [2023-11-26 12:03:09,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 232 transitions, 501 flow [2023-11-26 12:03:09,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:09,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:10,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 715 transitions. [2023-11-26 12:03:10,001 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9649122807017544 [2023-11-26 12:03:10,001 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 715 transitions. [2023-11-26 12:03:10,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 715 transitions. [2023-11-26 12:03:10,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:10,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 715 transitions. [2023-11-26 12:03:10,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.33333333333334) internal successors, (715), 3 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:10,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:10,007 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:10,007 INFO L175 Difference]: Start difference. First operand has 242 places, 233 transitions, 479 flow. Second operand 3 states and 715 transitions. [2023-11-26 12:03:10,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 232 transitions, 501 flow [2023-11-26 12:03:10,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 232 transitions, 491 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 12:03:10,014 INFO L231 Difference]: Finished difference. Result has 238 places, 232 transitions, 471 flow [2023-11-26 12:03:10,014 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=471, PETRI_PLACES=238, PETRI_TRANSITIONS=232} [2023-11-26 12:03:10,015 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, -12 predicate places. [2023-11-26 12:03:10,016 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 232 transitions, 471 flow [2023-11-26 12:03:10,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:10,016 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:10,017 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] [2023-11-26 12:03:10,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:03:10,017 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 12:03:10,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:10,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1539732976, now seen corresponding path program 1 times [2023-11-26 12:03:10,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:10,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060028264] [2023-11-26 12:03:10,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:10,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:10,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:10,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:10,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060028264] [2023-11-26 12:03:10,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060028264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:10,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:10,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:10,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737798403] [2023-11-26 12:03:10,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:10,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:10,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:10,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:10,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:10,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 247 [2023-11-26 12:03:10,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 232 transitions, 471 flow. Second operand has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:10,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:10,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 247 [2023-11-26 12:03:10,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:10,154 INFO L124 PetriNetUnfolderBase]: 4/295 cut-off events. [2023-11-26 12:03:10,154 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 12:03:10,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 295 events. 4/295 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 259 event pairs, 4 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 256. Up to 15 conditions per place. [2023-11-26 12:03:10,156 INFO L140 encePairwiseOnDemand]: 245/247 looper letters, 7 selfloop transitions, 1 changer transitions 0/231 dead transitions. [2023-11-26 12:03:10,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 231 transitions, 485 flow [2023-11-26 12:03:10,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:10,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:10,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 723 transitions. [2023-11-26 12:03:10,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9757085020242915 [2023-11-26 12:03:10,160 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 723 transitions. [2023-11-26 12:03:10,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 723 transitions. [2023-11-26 12:03:10,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:10,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 723 transitions. [2023-11-26 12:03:10,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 241.0) internal successors, (723), 3 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:10,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:10,166 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:10,166 INFO L175 Difference]: Start difference. First operand has 238 places, 232 transitions, 471 flow. Second operand 3 states and 723 transitions. [2023-11-26 12:03:10,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 231 transitions, 485 flow [2023-11-26 12:03:10,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 231 transitions, 481 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:10,172 INFO L231 Difference]: Finished difference. Result has 237 places, 231 transitions, 467 flow [2023-11-26 12:03:10,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=467, PETRI_PLACES=237, PETRI_TRANSITIONS=231} [2023-11-26 12:03:10,174 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, -13 predicate places. [2023-11-26 12:03:10,174 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 231 transitions, 467 flow [2023-11-26 12:03:10,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:10,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:10,175 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] [2023-11-26 12:03:10,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:03:10,176 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 12:03:10,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:10,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1201317940, now seen corresponding path program 1 times [2023-11-26 12:03:10,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:10,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634798123] [2023-11-26 12:03:10,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:10,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:11,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:11,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:11,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634798123] [2023-11-26 12:03:11,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634798123] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:11,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:11,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:03:11,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471942016] [2023-11-26 12:03:11,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:11,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:03:11,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:11,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:03:11,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:03:11,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 247 [2023-11-26 12:03:11,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 231 transitions, 467 flow. Second operand has 6 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:11,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:11,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 247 [2023-11-26 12:03:11,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:12,138 INFO L124 PetriNetUnfolderBase]: 316/1559 cut-off events. [2023-11-26 12:03:12,139 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:03:12,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2299 conditions, 1559 events. 316/1559 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9381 event pairs, 32 based on Foata normal form. 0/1469 useless extension candidates. Maximal degree in co-relation 2226. Up to 388 conditions per place. [2023-11-26 12:03:12,150 INFO L140 encePairwiseOnDemand]: 219/247 looper letters, 107 selfloop transitions, 70 changer transitions 0/343 dead transitions. [2023-11-26 12:03:12,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 343 transitions, 1045 flow [2023-11-26 12:03:12,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:03:12,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:03:12,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1271 transitions. [2023-11-26 12:03:12,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8576248313090419 [2023-11-26 12:03:12,155 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1271 transitions. [2023-11-26 12:03:12,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1271 transitions. [2023-11-26 12:03:12,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:12,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1271 transitions. [2023-11-26 12:03:12,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 211.83333333333334) internal successors, (1271), 6 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:12,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:12,165 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:12,166 INFO L175 Difference]: Start difference. First operand has 237 places, 231 transitions, 467 flow. Second operand 6 states and 1271 transitions. [2023-11-26 12:03:12,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 343 transitions, 1045 flow [2023-11-26 12:03:12,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 343 transitions, 1044 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:03:12,175 INFO L231 Difference]: Finished difference. Result has 245 places, 301 transitions, 944 flow [2023-11-26 12:03:12,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=944, PETRI_PLACES=245, PETRI_TRANSITIONS=301} [2023-11-26 12:03:12,178 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, -5 predicate places. [2023-11-26 12:03:12,178 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 301 transitions, 944 flow [2023-11-26 12:03:12,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:12,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:12,179 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] [2023-11-26 12:03:12,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 12:03:12,180 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 12:03:12,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:12,180 INFO L85 PathProgramCache]: Analyzing trace with hash -275862944, now seen corresponding path program 1 times [2023-11-26 12:03:12,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:12,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519365134] [2023-11-26 12:03:12,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:12,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:13,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:13,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:13,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519365134] [2023-11-26 12:03:13,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519365134] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:13,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:13,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:03:13,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038124076] [2023-11-26 12:03:13,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:13,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:03:13,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:13,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:03:13,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:03:13,557 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 247 [2023-11-26 12:03:13,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 301 transitions, 944 flow. Second operand has 6 states, 6 states have (on average 189.16666666666666) internal successors, (1135), 6 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:13,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:13,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 247 [2023-11-26 12:03:13,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:14,221 INFO L124 PetriNetUnfolderBase]: 588/2353 cut-off events. [2023-11-26 12:03:14,221 INFO L125 PetriNetUnfolderBase]: For 603/609 co-relation queries the response was YES. [2023-11-26 12:03:14,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4751 conditions, 2353 events. 588/2353 cut-off events. For 603/609 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 15683 event pairs, 222 based on Foata normal form. 0/2244 useless extension candidates. Maximal degree in co-relation 4676. Up to 1090 conditions per place. [2023-11-26 12:03:14,242 INFO L140 encePairwiseOnDemand]: 232/247 looper letters, 114 selfloop transitions, 48 changer transitions 0/352 dead transitions. [2023-11-26 12:03:14,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 352 transitions, 1440 flow [2023-11-26 12:03:14,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:03:14,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:03:14,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1208 transitions. [2023-11-26 12:03:14,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.815114709851552 [2023-11-26 12:03:14,247 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1208 transitions. [2023-11-26 12:03:14,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1208 transitions. [2023-11-26 12:03:14,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:14,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1208 transitions. [2023-11-26 12:03:14,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.33333333333334) internal successors, (1208), 6 states have internal predecessors, (1208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:14,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:14,258 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:14,258 INFO L175 Difference]: Start difference. First operand has 245 places, 301 transitions, 944 flow. Second operand 6 states and 1208 transitions. [2023-11-26 12:03:14,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 352 transitions, 1440 flow [2023-11-26 12:03:14,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 352 transitions, 1440 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:03:14,278 INFO L231 Difference]: Finished difference. Result has 255 places, 344 transitions, 1332 flow [2023-11-26 12:03:14,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1332, PETRI_PLACES=255, PETRI_TRANSITIONS=344} [2023-11-26 12:03:14,279 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, 5 predicate places. [2023-11-26 12:03:14,280 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 344 transitions, 1332 flow [2023-11-26 12:03:14,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.16666666666666) internal successors, (1135), 6 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:14,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:14,281 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] [2023-11-26 12:03:14,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 12:03:14,281 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 12:03:14,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:14,282 INFO L85 PathProgramCache]: Analyzing trace with hash -887800161, now seen corresponding path program 1 times [2023-11-26 12:03:14,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:14,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228654800] [2023-11-26 12:03:14,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:14,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:15,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:15,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:15,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228654800] [2023-11-26 12:03:15,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228654800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:15,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:15,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:03:15,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731606223] [2023-11-26 12:03:15,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:15,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:03:15,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:15,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:03:15,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:03:15,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 247 [2023-11-26 12:03:15,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 344 transitions, 1332 flow. Second operand has 6 states, 6 states have (on average 195.16666666666666) internal successors, (1171), 6 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:15,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:15,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 247 [2023-11-26 12:03:15,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:16,152 INFO L124 PetriNetUnfolderBase]: 678/2807 cut-off events. [2023-11-26 12:03:16,152 INFO L125 PetriNetUnfolderBase]: For 1499/1547 co-relation queries the response was YES. [2023-11-26 12:03:16,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6364 conditions, 2807 events. 678/2807 cut-off events. For 1499/1547 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 20233 event pairs, 59 based on Foata normal form. 0/2720 useless extension candidates. Maximal degree in co-relation 6282. Up to 924 conditions per place. [2023-11-26 12:03:16,182 INFO L140 encePairwiseOnDemand]: 224/247 looper letters, 135 selfloop transitions, 136 changer transitions 4/484 dead transitions. [2023-11-26 12:03:16,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 484 transitions, 2638 flow [2023-11-26 12:03:16,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:03:16,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:03:16,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1271 transitions. [2023-11-26 12:03:16,187 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8576248313090419 [2023-11-26 12:03:16,187 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1271 transitions. [2023-11-26 12:03:16,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1271 transitions. [2023-11-26 12:03:16,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:16,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1271 transitions. [2023-11-26 12:03:16,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 211.83333333333334) internal successors, (1271), 6 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:16,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:16,200 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:16,200 INFO L175 Difference]: Start difference. First operand has 255 places, 344 transitions, 1332 flow. Second operand 6 states and 1271 transitions. [2023-11-26 12:03:16,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 484 transitions, 2638 flow [2023-11-26 12:03:16,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 484 transitions, 2620 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-11-26 12:03:16,227 INFO L231 Difference]: Finished difference. Result has 265 places, 475 transitions, 2680 flow [2023-11-26 12:03:16,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1314, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2680, PETRI_PLACES=265, PETRI_TRANSITIONS=475} [2023-11-26 12:03:16,229 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, 15 predicate places. [2023-11-26 12:03:16,230 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 475 transitions, 2680 flow [2023-11-26 12:03:16,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 195.16666666666666) internal successors, (1171), 6 states have internal predecessors, (1171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:16,231 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:16,231 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] [2023-11-26 12:03:16,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 12:03:16,232 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 12:03:16,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:16,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1890773989, now seen corresponding path program 1 times [2023-11-26 12:03:16,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:16,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372602718] [2023-11-26 12:03:16,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:16,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:16,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:16,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:16,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372602718] [2023-11-26 12:03:16,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372602718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:16,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:16,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:03:16,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21732725] [2023-11-26 12:03:16,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:16,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:03:16,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:16,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:03:16,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:03:17,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 247 [2023-11-26 12:03:17,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 475 transitions, 2680 flow. Second operand has 6 states, 6 states have (on average 189.16666666666666) internal successors, (1135), 6 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:17,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:17,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 247 [2023-11-26 12:03:17,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:18,318 INFO L124 PetriNetUnfolderBase]: 968/3509 cut-off events. [2023-11-26 12:03:18,318 INFO L125 PetriNetUnfolderBase]: For 3829/3901 co-relation queries the response was YES. [2023-11-26 12:03:18,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9750 conditions, 3509 events. 968/3509 cut-off events. For 3829/3901 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 25564 event pairs, 207 based on Foata normal form. 0/3433 useless extension candidates. Maximal degree in co-relation 9665. Up to 1565 conditions per place. [2023-11-26 12:03:18,362 INFO L140 encePairwiseOnDemand]: 232/247 looper letters, 239 selfloop transitions, 62 changer transitions 0/532 dead transitions. [2023-11-26 12:03:18,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 532 transitions, 3624 flow [2023-11-26 12:03:18,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:03:18,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:03:18,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1208 transitions. [2023-11-26 12:03:18,367 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.815114709851552 [2023-11-26 12:03:18,367 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1208 transitions. [2023-11-26 12:03:18,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1208 transitions. [2023-11-26 12:03:18,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:18,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1208 transitions. [2023-11-26 12:03:18,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.33333333333334) internal successors, (1208), 6 states have internal predecessors, (1208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:18,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:18,377 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:18,378 INFO L175 Difference]: Start difference. First operand has 265 places, 475 transitions, 2680 flow. Second operand 6 states and 1208 transitions. [2023-11-26 12:03:18,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 532 transitions, 3624 flow [2023-11-26 12:03:18,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 532 transitions, 3588 flow, removed 18 selfloop flow, removed 0 redundant places. [2023-11-26 12:03:18,422 INFO L231 Difference]: Finished difference. Result has 275 places, 524 transitions, 3270 flow [2023-11-26 12:03:18,423 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=2644, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3270, PETRI_PLACES=275, PETRI_TRANSITIONS=524} [2023-11-26 12:03:18,423 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, 25 predicate places. [2023-11-26 12:03:18,423 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 524 transitions, 3270 flow [2023-11-26 12:03:18,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.16666666666666) internal successors, (1135), 6 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:18,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:18,425 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] [2023-11-26 12:03:18,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 12:03:18,425 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 12:03:18,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:18,426 INFO L85 PathProgramCache]: Analyzing trace with hash -785837757, now seen corresponding path program 1 times [2023-11-26 12:03:18,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:18,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976062220] [2023-11-26 12:03:18,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:18,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:19,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:19,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:19,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976062220] [2023-11-26 12:03:19,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976062220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:19,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:19,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 12:03:19,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104362785] [2023-11-26 12:03:19,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:19,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 12:03:19,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:19,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 12:03:19,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-26 12:03:22,014 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 247 [2023-11-26 12:03:22,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 524 transitions, 3270 flow. Second operand has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:22,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:22,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 247 [2023-11-26 12:03:22,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:25,038 INFO L124 PetriNetUnfolderBase]: 1669/5626 cut-off events. [2023-11-26 12:03:25,038 INFO L125 PetriNetUnfolderBase]: For 9844/9915 co-relation queries the response was YES. [2023-11-26 12:03:25,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17656 conditions, 5626 events. 1669/5626 cut-off events. For 9844/9915 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 46341 event pairs, 96 based on Foata normal form. 48/5599 useless extension candidates. Maximal degree in co-relation 17561. Up to 1080 conditions per place. [2023-11-26 12:03:25,135 INFO L140 encePairwiseOnDemand]: 213/247 looper letters, 579 selfloop transitions, 244 changer transitions 4/1026 dead transitions. [2023-11-26 12:03:25,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 1026 transitions, 8946 flow [2023-11-26 12:03:25,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-26 12:03:25,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-11-26 12:03:25,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4885 transitions. [2023-11-26 12:03:25,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7324936272304693 [2023-11-26 12:03:25,154 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4885 transitions. [2023-11-26 12:03:25,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4885 transitions. [2023-11-26 12:03:25,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:25,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4885 transitions. [2023-11-26 12:03:25,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 180.92592592592592) internal successors, (4885), 27 states have internal predecessors, (4885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:25,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 247.0) internal successors, (6916), 28 states have internal predecessors, (6916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:25,292 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 247.0) internal successors, (6916), 28 states have internal predecessors, (6916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:25,293 INFO L175 Difference]: Start difference. First operand has 275 places, 524 transitions, 3270 flow. Second operand 27 states and 4885 transitions. [2023-11-26 12:03:25,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 1026 transitions, 8946 flow [2023-11-26 12:03:25,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 1026 transitions, 8764 flow, removed 91 selfloop flow, removed 0 redundant places. [2023-11-26 12:03:25,404 INFO L231 Difference]: Finished difference. Result has 314 places, 719 transitions, 5873 flow [2023-11-26 12:03:25,405 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=3158, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=5873, PETRI_PLACES=314, PETRI_TRANSITIONS=719} [2023-11-26 12:03:25,406 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, 64 predicate places. [2023-11-26 12:03:25,406 INFO L495 AbstractCegarLoop]: Abstraction has has 314 places, 719 transitions, 5873 flow [2023-11-26 12:03:25,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:25,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:25,407 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] [2023-11-26 12:03:25,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 12:03:25,408 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 12:03:25,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:25,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1273894989, now seen corresponding path program 2 times [2023-11-26 12:03:25,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:25,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171610359] [2023-11-26 12:03:25,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:25,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:27,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:27,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:27,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171610359] [2023-11-26 12:03:27,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171610359] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:27,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:27,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 12:03:27,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825301650] [2023-11-26 12:03:27,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:27,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 12:03:27,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:27,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 12:03:27,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-26 12:03:29,440 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 247 [2023-11-26 12:03:29,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 719 transitions, 5873 flow. Second operand has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:29,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:29,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 247 [2023-11-26 12:03:29,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:33,478 INFO L124 PetriNetUnfolderBase]: 2396/8142 cut-off events. [2023-11-26 12:03:33,479 INFO L125 PetriNetUnfolderBase]: For 21091/21293 co-relation queries the response was YES. [2023-11-26 12:03:33,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28033 conditions, 8142 events. 2396/8142 cut-off events. For 21091/21293 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 75658 event pairs, 180 based on Foata normal form. 113/8145 useless extension candidates. Maximal degree in co-relation 27921. Up to 1561 conditions per place. [2023-11-26 12:03:33,587 INFO L140 encePairwiseOnDemand]: 208/247 looper letters, 564 selfloop transitions, 350 changer transitions 6/1119 dead transitions. [2023-11-26 12:03:33,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 1119 transitions, 11149 flow [2023-11-26 12:03:33,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-26 12:03:33,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-26 12:03:33,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3730 transitions. [2023-11-26 12:03:33,606 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7550607287449392 [2023-11-26 12:03:33,607 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3730 transitions. [2023-11-26 12:03:33,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3730 transitions. [2023-11-26 12:03:33,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:33,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3730 transitions. [2023-11-26 12:03:33,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 186.5) internal successors, (3730), 20 states have internal predecessors, (3730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,636 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:33,637 INFO L175 Difference]: Start difference. First operand has 314 places, 719 transitions, 5873 flow. Second operand 20 states and 3730 transitions. [2023-11-26 12:03:33,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 1119 transitions, 11149 flow [2023-11-26 12:03:34,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 1119 transitions, 11081 flow, removed 32 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:34,046 INFO L231 Difference]: Finished difference. Result has 348 places, 854 transitions, 8940 flow [2023-11-26 12:03:34,047 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=5823, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8940, PETRI_PLACES=348, PETRI_TRANSITIONS=854} [2023-11-26 12:03:34,048 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, 98 predicate places. [2023-11-26 12:03:34,048 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 854 transitions, 8940 flow [2023-11-26 12:03:34,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:34,049 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:34,049 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] [2023-11-26 12:03:34,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 12:03:34,050 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 12:03:34,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:34,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1946945805, now seen corresponding path program 3 times [2023-11-26 12:03:34,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:34,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673515651] [2023-11-26 12:03:34,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:34,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:35,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:35,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:35,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673515651] [2023-11-26 12:03:35,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673515651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:35,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:35,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 12:03:35,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630262173] [2023-11-26 12:03:35,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:35,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 12:03:35,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:35,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 12:03:35,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-11-26 12:03:37,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 247 [2023-11-26 12:03:37,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 854 transitions, 8940 flow. Second operand has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:37,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:37,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 247 [2023-11-26 12:03:37,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:41,397 INFO L124 PetriNetUnfolderBase]: 2456/8297 cut-off events. [2023-11-26 12:03:41,397 INFO L125 PetriNetUnfolderBase]: For 33011/33281 co-relation queries the response was YES. [2023-11-26 12:03:41,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31557 conditions, 8297 events. 2456/8297 cut-off events. For 33011/33281 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 77181 event pairs, 128 based on Foata normal form. 154/8359 useless extension candidates. Maximal degree in co-relation 31474. Up to 1579 conditions per place. [2023-11-26 12:03:41,550 INFO L140 encePairwiseOnDemand]: 220/247 looper letters, 675 selfloop transitions, 239 changer transitions 4/1117 dead transitions. [2023-11-26 12:03:41,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 1117 transitions, 13154 flow [2023-11-26 12:03:41,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-26 12:03:41,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-11-26 12:03:41,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4666 transitions. [2023-11-26 12:03:41,562 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7265649330426658 [2023-11-26 12:03:41,562 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 4666 transitions. [2023-11-26 12:03:41,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 4666 transitions. [2023-11-26 12:03:41,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:41,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 4666 transitions. [2023-11-26 12:03:41,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 179.46153846153845) internal successors, (4666), 26 states have internal predecessors, (4666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:41,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 247.0) internal successors, (6669), 27 states have internal predecessors, (6669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:41,594 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 247.0) internal successors, (6669), 27 states have internal predecessors, (6669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:41,594 INFO L175 Difference]: Start difference. First operand has 348 places, 854 transitions, 8940 flow. Second operand 26 states and 4666 transitions. [2023-11-26 12:03:41,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 1117 transitions, 13154 flow [2023-11-26 12:03:42,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 1117 transitions, 13056 flow, removed 47 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:42,055 INFO L231 Difference]: Finished difference. Result has 380 places, 917 transitions, 10401 flow [2023-11-26 12:03:42,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=8854, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=854, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=636, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=10401, PETRI_PLACES=380, PETRI_TRANSITIONS=917} [2023-11-26 12:03:42,057 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, 130 predicate places. [2023-11-26 12:03:42,058 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 917 transitions, 10401 flow [2023-11-26 12:03:42,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:42,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:42,059 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] [2023-11-26 12:03:42,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 12:03:42,060 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-26 12:03:42,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:42,061 INFO L85 PathProgramCache]: Analyzing trace with hash -970849745, now seen corresponding path program 4 times [2023-11-26 12:03:42,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:42,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958589230] [2023-11-26 12:03:42,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:42,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:42,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat