./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/fk2012.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_9ec1200f-2bbf-42a8-9366-645dc0fdfd23/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec1200f-2bbf-42a8-9366-645dc0fdfd23/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec1200f-2bbf-42a8-9366-645dc0fdfd23/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec1200f-2bbf-42a8-9366-645dc0fdfd23/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/fk2012.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec1200f-2bbf-42a8-9366-645dc0fdfd23/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec1200f-2bbf-42a8-9366-645dc0fdfd23/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 25a65bfeb78eff83ae0d8a23f733f9dc95190d8c8aa20c7c495d09a2bd7eb6f0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:58:17,954 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:58:18,039 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec1200f-2bbf-42a8-9366-645dc0fdfd23/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 21:58:18,045 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:58:18,046 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:58:18,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:58:18,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:58:18,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:58:18,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:58:18,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:58:18,078 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:58:18,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:58:18,079 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:58:18,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:58:18,080 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:58:18,081 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:58:18,082 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:58:18,082 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:58:18,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:58:18,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:58:18,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:58:18,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:58:18,086 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 21:58:18,086 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:58:18,087 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:58:18,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:58:18,088 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:58:18,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:58:18,089 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:58:18,090 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:58:18,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:58:18,091 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:58:18,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:58:18,092 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:58:18,092 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:58:18,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:58:18,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:58:18,093 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:58:18,094 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:58:18,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:58:18,095 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:58:18,095 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_9ec1200f-2bbf-42a8-9366-645dc0fdfd23/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec1200f-2bbf-42a8-9366-645dc0fdfd23/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25a65bfeb78eff83ae0d8a23f733f9dc95190d8c8aa20c7c495d09a2bd7eb6f0 [2023-11-06 21:58:18,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:58:18,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:58:18,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:58:18,448 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:58:18,449 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:58:18,450 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec1200f-2bbf-42a8-9366-645dc0fdfd23/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-lit/fk2012.i [2023-11-06 21:58:21,591 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:58:21,918 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:58:21,919 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec1200f-2bbf-42a8-9366-645dc0fdfd23/sv-benchmarks/c/pthread-lit/fk2012.i [2023-11-06 21:58:21,939 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec1200f-2bbf-42a8-9366-645dc0fdfd23/bin/uautomizer-verify-WvqO1wxjHP/data/543d73940/df437499a53f495bbd20705300fd12f9/FLAGfc5dfb1b9 [2023-11-06 21:58:21,955 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec1200f-2bbf-42a8-9366-645dc0fdfd23/bin/uautomizer-verify-WvqO1wxjHP/data/543d73940/df437499a53f495bbd20705300fd12f9 [2023-11-06 21:58:21,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:58:21,960 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:58:21,961 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:21,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:58:21,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:58:21,968 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:21" (1/1) ... [2023-11-06 21:58:21,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@488df4bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:21, skipping insertion in model container [2023-11-06 21:58:21,970 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:21" (1/1) ... [2023-11-06 21:58:22,044 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:58:22,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:22,607 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:58:22,691 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:22,751 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:58:22,751 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:58:22,760 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:58:22,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22 WrapperNode [2023-11-06 21:58:22,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:22,762 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:22,763 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:58:22,763 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:58:22,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2023-11-06 21:58:22,799 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2023-11-06 21:58:22,832 INFO L138 Inliner]: procedures = 277, calls = 36, calls flagged for inlining = 17, calls inlined = 22, statements flattened = 258 [2023-11-06 21:58:22,836 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:22,837 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:58:22,837 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:58:22,837 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:58:22,849 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2023-11-06 21:58:22,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2023-11-06 21:58:22,855 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2023-11-06 21:58:22,856 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2023-11-06 21:58:22,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2023-11-06 21:58:22,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2023-11-06 21:58:22,872 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2023-11-06 21:58:22,874 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2023-11-06 21:58:22,879 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:58:22,880 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:58:22,880 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:58:22,880 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:58:22,881 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (1/1) ... [2023-11-06 21:58:22,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:58:22,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec1200f-2bbf-42a8-9366-645dc0fdfd23/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:22,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec1200f-2bbf-42a8-9366-645dc0fdfd23/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:58:22,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ec1200f-2bbf-42a8-9366-645dc0fdfd23/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:58:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:58:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:58:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:58:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:58:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:58:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:58:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure producer [2023-11-06 21:58:23,001 INFO L138 BoogieDeclarations]: Found implementation of procedure producer [2023-11-06 21:58:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure consumer [2023-11-06 21:58:23,001 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer [2023-11-06 21:58:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:58:23,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:58:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:58:23,006 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:58:23,197 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:58:23,198 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:58:23,602 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:58:23,772 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:58:23,772 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 21:58:23,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:23 BoogieIcfgContainer [2023-11-06 21:58:23,775 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:58:23,778 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:58:23,778 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:58:23,781 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:58:23,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:58:21" (1/3) ... [2023-11-06 21:58:23,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e608d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:23, skipping insertion in model container [2023-11-06 21:58:23,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:22" (2/3) ... [2023-11-06 21:58:23,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e608d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:23, skipping insertion in model container [2023-11-06 21:58:23,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:23" (3/3) ... [2023-11-06 21:58:23,785 INFO L112 eAbstractionObserver]: Analyzing ICFG fk2012.i [2023-11-06 21:58:23,794 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:58:23,806 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:58:23,806 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-06 21:58:23,807 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:58:23,900 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 21:58:23,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 195 transitions, 398 flow [2023-11-06 21:58:24,145 INFO L124 PetriNetUnfolderBase]: 21/401 cut-off events. [2023-11-06 21:58:24,145 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:58:24,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 401 events. 21/401 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1712 event pairs, 1 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 185. Up to 8 conditions per place. [2023-11-06 21:58:24,166 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 195 transitions, 398 flow [2023-11-06 21:58:24,177 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 195 transitions, 398 flow [2023-11-06 21:58:24,181 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:58:24,191 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 191 places, 195 transitions, 398 flow [2023-11-06 21:58:24,194 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 191 places, 195 transitions, 398 flow [2023-11-06 21:58:24,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 195 transitions, 398 flow [2023-11-06 21:58:24,292 INFO L124 PetriNetUnfolderBase]: 21/401 cut-off events. [2023-11-06 21:58:24,292 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:58:24,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 401 events. 21/401 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1712 event pairs, 1 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 185. Up to 8 conditions per place. [2023-11-06 21:58:24,322 INFO L119 LiptonReduction]: Number of co-enabled transitions 16308 [2023-11-06 21:58:27,430 INFO L134 LiptonReduction]: Checked pairs total: 48344 [2023-11-06 21:58:27,431 INFO L136 LiptonReduction]: Total number of compositions: 178 [2023-11-06 21:58:27,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:58:27,463 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=LoopsAndPotentialCycles, 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;@1876f23f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:58:27,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2023-11-06 21:58:27,464 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:58:27,464 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 21:58:27,465 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:58:27,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:27,465 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 21:58:27,466 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2023-11-06 21:58:27,471 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:27,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1096, now seen corresponding path program 1 times [2023-11-06 21:58:27,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:27,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097593939] [2023-11-06 21:58:27,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:27,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:27,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:27,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:27,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097593939] [2023-11-06 21:58:27,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097593939] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:27,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:27,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 21:58:27,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554569182] [2023-11-06 21:58:27,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:27,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:58:27,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:27,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:58:27,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:58:27,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 373 [2023-11-06 21:58:27,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 86 transitions, 180 flow. Second operand has 2 states, 2 states have (on average 158.5) internal successors, (317), 2 states have internal predecessors, (317), 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) [2023-11-06 21:58:27,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:27,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 373 [2023-11-06 21:58:27,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:58:28,097 INFO L124 PetriNetUnfolderBase]: 985/2275 cut-off events. [2023-11-06 21:58:28,098 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-06 21:58:28,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3868 conditions, 2275 events. 985/2275 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 16570 event pairs, 833 based on Foata normal form. 64/1892 useless extension candidates. Maximal degree in co-relation 2962. Up to 1546 conditions per place. [2023-11-06 21:58:28,119 INFO L140 encePairwiseOnDemand]: 349/373 looper letters, 27 selfloop transitions, 0 changer transitions 0/62 dead transitions. [2023-11-06 21:58:28,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 62 transitions, 186 flow [2023-11-06 21:58:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:58:28,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 21:58:28,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 367 transitions. [2023-11-06 21:58:28,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49195710455764075 [2023-11-06 21:58:28,143 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 367 transitions. [2023-11-06 21:58:28,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 367 transitions. [2023-11-06 21:58:28,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:58:28,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 367 transitions. [2023-11-06 21:58:28,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 183.5) internal successors, (367), 2 states have internal predecessors, (367), 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) [2023-11-06 21:58:28,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 373.0) internal successors, (1119), 3 states have internal predecessors, (1119), 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) [2023-11-06 21:58:28,166 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 373.0) internal successors, (1119), 3 states have internal predecessors, (1119), 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) [2023-11-06 21:58:28,168 INFO L175 Difference]: Start difference. First operand has 86 places, 86 transitions, 180 flow. Second operand 2 states and 367 transitions. [2023-11-06 21:58:28,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 62 transitions, 186 flow [2023-11-06 21:58:28,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 62 transitions, 186 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:58:28,176 INFO L231 Difference]: Finished difference. Result has 65 places, 62 transitions, 132 flow [2023-11-06 21:58:28,178 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=65, PETRI_TRANSITIONS=62} [2023-11-06 21:58:28,183 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -21 predicate places. [2023-11-06 21:58:28,183 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 132 flow [2023-11-06 21:58:28,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 158.5) internal successors, (317), 2 states have internal predecessors, (317), 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) [2023-11-06 21:58:28,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:28,185 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-06 21:58:28,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:58:28,186 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2023-11-06 21:58:28,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:28,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1952724422, now seen corresponding path program 1 times [2023-11-06 21:58:28,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:28,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623337878] [2023-11-06 21:58:28,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:28,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:28,264 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:58:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:58:28,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:58:28,337 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 21:58:28,338 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (62 of 63 remaining) [2023-11-06 21:58:28,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr0ASSERT_VIOLATIONDATA_RACE (61 of 63 remaining) [2023-11-06 21:58:28,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr1ASSERT_VIOLATIONDATA_RACE (60 of 63 remaining) [2023-11-06 21:58:28,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr2ASSERT_VIOLATIONDATA_RACE (59 of 63 remaining) [2023-11-06 21:58:28,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr3ASSERT_VIOLATIONDATA_RACE (58 of 63 remaining) [2023-11-06 21:58:28,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr4ASSERT_VIOLATIONDATA_RACE (57 of 63 remaining) [2023-11-06 21:58:28,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr5ASSERT_VIOLATIONDATA_RACE (56 of 63 remaining) [2023-11-06 21:58:28,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr11ASSERT_VIOLATIONDATA_RACE (55 of 63 remaining) [2023-11-06 21:58:28,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr12ASSERT_VIOLATIONDATA_RACE (54 of 63 remaining) [2023-11-06 21:58:28,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr6ASSERT_VIOLATIONDATA_RACE (53 of 63 remaining) [2023-11-06 21:58:28,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr13ASSERT_VIOLATIONDATA_RACE (52 of 63 remaining) [2023-11-06 21:58:28,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr7ASSERT_VIOLATIONDATA_RACE (51 of 63 remaining) [2023-11-06 21:58:28,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr8ASSERT_VIOLATIONDATA_RACE (50 of 63 remaining) [2023-11-06 21:58:28,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr14ASSERT_VIOLATIONDATA_RACE (49 of 63 remaining) [2023-11-06 21:58:28,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr16ASSERT_VIOLATIONDATA_RACE (48 of 63 remaining) [2023-11-06 21:58:28,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr9ASSERT_VIOLATIONDATA_RACE (47 of 63 remaining) [2023-11-06 21:58:28,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr10ASSERT_VIOLATIONDATA_RACE (46 of 63 remaining) [2023-11-06 21:58:28,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr17ASSERT_VIOLATIONDATA_RACE (45 of 63 remaining) [2023-11-06 21:58:28,353 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr18ASSERT_VIOLATIONDATA_RACE (44 of 63 remaining) [2023-11-06 21:58:28,353 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr15ASSERT_VIOLATIONDATA_RACE (43 of 63 remaining) [2023-11-06 21:58:28,353 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 63 remaining) [2023-11-06 21:58:28,353 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 63 remaining) [2023-11-06 21:58:28,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 63 remaining) [2023-11-06 21:58:28,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 63 remaining) [2023-11-06 21:58:28,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr0ASSERT_VIOLATIONDATA_RACE (38 of 63 remaining) [2023-11-06 21:58:28,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr1ASSERT_VIOLATIONDATA_RACE (37 of 63 remaining) [2023-11-06 21:58:28,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr5ASSERT_VIOLATIONDATA_RACE (36 of 63 remaining) [2023-11-06 21:58:28,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr2ASSERT_VIOLATIONDATA_RACE (35 of 63 remaining) [2023-11-06 21:58:28,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr6ASSERT_VIOLATIONDATA_RACE (34 of 63 remaining) [2023-11-06 21:58:28,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr3ASSERT_VIOLATIONDATA_RACE (33 of 63 remaining) [2023-11-06 21:58:28,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr4ASSERT_VIOLATIONDATA_RACE (32 of 63 remaining) [2023-11-06 21:58:28,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr7ASSERT_VIOLATIONDATA_RACE (31 of 63 remaining) [2023-11-06 21:58:28,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr8ASSERT_VIOLATIONDATA_RACE (30 of 63 remaining) [2023-11-06 21:58:28,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr9ASSERT_VIOLATIONDATA_RACE (29 of 63 remaining) [2023-11-06 21:58:28,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr0ASSERT_VIOLATIONDATA_RACE (28 of 63 remaining) [2023-11-06 21:58:28,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr1ASSERT_VIOLATIONDATA_RACE (27 of 63 remaining) [2023-11-06 21:58:28,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr2ASSERT_VIOLATIONDATA_RACE (26 of 63 remaining) [2023-11-06 21:58:28,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr3ASSERT_VIOLATIONDATA_RACE (25 of 63 remaining) [2023-11-06 21:58:28,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr4ASSERT_VIOLATIONDATA_RACE (24 of 63 remaining) [2023-11-06 21:58:28,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr5ASSERT_VIOLATIONDATA_RACE (23 of 63 remaining) [2023-11-06 21:58:28,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr11ASSERT_VIOLATIONDATA_RACE (22 of 63 remaining) [2023-11-06 21:58:28,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr12ASSERT_VIOLATIONDATA_RACE (21 of 63 remaining) [2023-11-06 21:58:28,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr6ASSERT_VIOLATIONDATA_RACE (20 of 63 remaining) [2023-11-06 21:58:28,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr13ASSERT_VIOLATIONDATA_RACE (19 of 63 remaining) [2023-11-06 21:58:28,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr7ASSERT_VIOLATIONDATA_RACE (18 of 63 remaining) [2023-11-06 21:58:28,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr8ASSERT_VIOLATIONDATA_RACE (17 of 63 remaining) [2023-11-06 21:58:28,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr14ASSERT_VIOLATIONDATA_RACE (16 of 63 remaining) [2023-11-06 21:58:28,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr16ASSERT_VIOLATIONDATA_RACE (15 of 63 remaining) [2023-11-06 21:58:28,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr9ASSERT_VIOLATIONDATA_RACE (14 of 63 remaining) [2023-11-06 21:58:28,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr10ASSERT_VIOLATIONDATA_RACE (13 of 63 remaining) [2023-11-06 21:58:28,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr17ASSERT_VIOLATIONDATA_RACE (12 of 63 remaining) [2023-11-06 21:58:28,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr18ASSERT_VIOLATIONDATA_RACE (11 of 63 remaining) [2023-11-06 21:58:28,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr15ASSERT_VIOLATIONDATA_RACE (10 of 63 remaining) [2023-11-06 21:58:28,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr0ASSERT_VIOLATIONDATA_RACE (9 of 63 remaining) [2023-11-06 21:58:28,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr1ASSERT_VIOLATIONDATA_RACE (8 of 63 remaining) [2023-11-06 21:58:28,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr5ASSERT_VIOLATIONDATA_RACE (7 of 63 remaining) [2023-11-06 21:58:28,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr2ASSERT_VIOLATIONDATA_RACE (6 of 63 remaining) [2023-11-06 21:58:28,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr6ASSERT_VIOLATIONDATA_RACE (5 of 63 remaining) [2023-11-06 21:58:28,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr3ASSERT_VIOLATIONDATA_RACE (4 of 63 remaining) [2023-11-06 21:58:28,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr4ASSERT_VIOLATIONDATA_RACE (3 of 63 remaining) [2023-11-06 21:58:28,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr7ASSERT_VIOLATIONDATA_RACE (2 of 63 remaining) [2023-11-06 21:58:28,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr8ASSERT_VIOLATIONDATA_RACE (1 of 63 remaining) [2023-11-06 21:58:28,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr9ASSERT_VIOLATIONDATA_RACE (0 of 63 remaining) [2023-11-06 21:58:28,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:58:28,377 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 21:58:28,382 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 21:58:28,382 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-06 21:58:28,451 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 21:58:28,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 324 places, 332 transitions, 684 flow [2023-11-06 21:58:28,825 INFO L124 PetriNetUnfolderBase]: 61/1072 cut-off events. [2023-11-06 21:58:28,825 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-06 21:58:28,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1107 conditions, 1072 events. 61/1072 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7072 event pairs, 4 based on Foata normal form. 0/820 useless extension candidates. Maximal degree in co-relation 682. Up to 18 conditions per place. [2023-11-06 21:58:28,847 INFO L82 GeneralOperation]: Start removeDead. Operand has 324 places, 332 transitions, 684 flow [2023-11-06 21:58:28,876 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 324 places, 332 transitions, 684 flow [2023-11-06 21:58:28,876 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:58:28,876 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 324 places, 332 transitions, 684 flow [2023-11-06 21:58:28,877 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 324 places, 332 transitions, 684 flow [2023-11-06 21:58:28,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 324 places, 332 transitions, 684 flow [2023-11-06 21:58:29,172 INFO L124 PetriNetUnfolderBase]: 61/1072 cut-off events. [2023-11-06 21:58:29,172 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-06 21:58:29,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1107 conditions, 1072 events. 61/1072 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7072 event pairs, 4 based on Foata normal form. 0/820 useless extension candidates. Maximal degree in co-relation 682. Up to 18 conditions per place. [2023-11-06 21:58:29,264 INFO L119 LiptonReduction]: Number of co-enabled transitions 69876 [2023-11-06 21:58:32,957 INFO L134 LiptonReduction]: Checked pairs total: 291950 [2023-11-06 21:58:32,958 INFO L136 LiptonReduction]: Total number of compositions: 267 [2023-11-06 21:58:32,960 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:58:32,961 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=LoopsAndPotentialCycles, 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;@1876f23f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:58:32,961 INFO L358 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2023-11-06 21:58:32,962 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:58:32,962 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 21:58:32,963 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:58:32,963 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:58:32,963 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 21:58:32,963 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 88 more)] === [2023-11-06 21:58:32,964 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:32,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1831, now seen corresponding path program 1 times [2023-11-06 21:58:32,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:32,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395736145] [2023-11-06 21:58:32,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:32,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:32,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:33,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:33,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395736145] [2023-11-06 21:58:33,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395736145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:33,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:33,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 21:58:33,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204192765] [2023-11-06 21:58:33,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:33,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:58:33,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:33,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:58:33,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:58:33,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 599 [2023-11-06 21:58:33,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 169 transitions, 358 flow. Second operand has 2 states, 2 states have (on average 260.5) internal successors, (521), 2 states have internal predecessors, (521), 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) [2023-11-06 21:58:33,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:58:33,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 599 [2023-11-06 21:58:33,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:59:12,030 INFO L124 PetriNetUnfolderBase]: 230246/350342 cut-off events. [2023-11-06 21:59:12,030 INFO L125 PetriNetUnfolderBase]: For 9016/9016 co-relation queries the response was YES. [2023-11-06 21:59:13,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655500 conditions, 350342 events. 230246/350342 cut-off events. For 9016/9016 co-relation queries the response was YES. Maximal size of possible extension queue 12368. Compared 3497828 event pairs, 197448 based on Foata normal form. 28415/323434 useless extension candidates. Maximal degree in co-relation 267135. Up to 295846 conditions per place. [2023-11-06 21:59:15,348 INFO L140 encePairwiseOnDemand]: 555/599 looper letters, 52 selfloop transitions, 0 changer transitions 0/125 dead transitions. [2023-11-06 21:59:15,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 125 transitions, 374 flow [2023-11-06 21:59:15,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:59:15,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 21:59:15,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 616 transitions. [2023-11-06 21:59:15,357 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5141903171953256 [2023-11-06 21:59:15,357 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 616 transitions. [2023-11-06 21:59:15,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 616 transitions. [2023-11-06 21:59:15,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:15,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 616 transitions. [2023-11-06 21:59:15,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 308.0) internal successors, (616), 2 states have internal predecessors, (616), 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) [2023-11-06 21:59:15,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 599.0) internal successors, (1797), 3 states have internal predecessors, (1797), 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) [2023-11-06 21:59:15,367 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 599.0) internal successors, (1797), 3 states have internal predecessors, (1797), 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) [2023-11-06 21:59:15,367 INFO L175 Difference]: Start difference. First operand has 168 places, 169 transitions, 358 flow. Second operand 2 states and 616 transitions. [2023-11-06 21:59:15,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 125 transitions, 374 flow [2023-11-06 21:59:15,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 125 transitions, 374 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:59:15,383 INFO L231 Difference]: Finished difference. Result has 129 places, 125 transitions, 270 flow [2023-11-06 21:59:15,384 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=599, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=270, PETRI_PLACES=129, PETRI_TRANSITIONS=125} [2023-11-06 21:59:15,385 INFO L281 CegarLoopForPetriNet]: 168 programPoint places, -39 predicate places. [2023-11-06 21:59:15,385 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 125 transitions, 270 flow [2023-11-06 21:59:15,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 260.5) internal successors, (521), 2 states have internal predecessors, (521), 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) [2023-11-06 21:59:15,386 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:15,386 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:15,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:59:15,387 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting consumerErr2ASSERT_VIOLATIONDATA_RACE === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 88 more)] === [2023-11-06 21:59:15,387 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:15,387 INFO L85 PathProgramCache]: Analyzing trace with hash -857228965, now seen corresponding path program 1 times [2023-11-06 21:59:15,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:15,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551968350] [2023-11-06 21:59:15,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:15,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:15,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:15,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:15,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551968350] [2023-11-06 21:59:15,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551968350] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:15,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:15,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:59:15,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089014140] [2023-11-06 21:59:15,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:15,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:59:15,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:15,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:59:15,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:59:15,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 599 [2023-11-06 21:59:15,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 125 transitions, 270 flow. Second operand has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 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) [2023-11-06 21:59:15,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:59:15,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 599 [2023-11-06 21:59:15,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand