./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.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_bc6b679c-0783-4720-859b-4450e7cc2ec6/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc6b679c-0783-4720-859b-4450e7cc2ec6/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_bc6b679c-0783-4720-859b-4450e7cc2ec6/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc6b679c-0783-4720-859b-4450e7cc2ec6/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc6b679c-0783-4720-859b-4450e7cc2ec6/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_bc6b679c-0783-4720-859b-4450e7cc2ec6/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 265daba2b5ad7b4578f16c23ab641f7a5441c3a3894a2482737cba7b750ee6df --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:37:54,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:37:55,034 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc6b679c-0783-4720-859b-4450e7cc2ec6/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:37:55,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:37:55,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:37:55,068 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:37:55,069 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:37:55,069 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:37:55,070 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:37:55,071 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:37:55,071 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:37:55,072 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:37:55,073 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:37:55,073 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:37:55,074 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:37:55,074 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:37:55,075 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:37:55,075 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:37:55,076 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:37:55,076 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:37:55,077 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:37:55,077 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:37:55,078 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:37:55,078 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:37:55,079 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:37:55,079 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:37:55,080 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:37:55,080 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:37:55,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:37:55,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:37:55,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:37:55,082 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:37:55,082 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:37:55,083 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:37:55,083 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:37:55,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:37:55,084 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:37:55,084 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:37:55,084 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:37:55,085 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:37:55,085 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:37:55,085 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_bc6b679c-0783-4720-859b-4450e7cc2ec6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc6b679c-0783-4720-859b-4450e7cc2ec6/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 265daba2b5ad7b4578f16c23ab641f7a5441c3a3894a2482737cba7b750ee6df [2023-11-06 22:37:55,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:37:55,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:37:55,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:37:55,429 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:37:55,430 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:37:55,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc6b679c-0783-4720-859b-4450e7cc2ec6/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i [2023-11-06 22:37:58,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:37:58,889 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:37:58,889 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc6b679c-0783-4720-859b-4450e7cc2ec6/sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i [2023-11-06 22:37:58,914 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc6b679c-0783-4720-859b-4450e7cc2ec6/bin/uautomizer-verify-WvqO1wxjHP/data/61fdb3402/66ac1d896e6b4f0d94bbefcbcab22408/FLAG596752f4f [2023-11-06 22:37:59,179 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc6b679c-0783-4720-859b-4450e7cc2ec6/bin/uautomizer-verify-WvqO1wxjHP/data/61fdb3402/66ac1d896e6b4f0d94bbefcbcab22408 [2023-11-06 22:37:59,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:37:59,185 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:37:59,186 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:37:59,187 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:37:59,192 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:37:59,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:37:59" (1/1) ... [2023-11-06 22:37:59,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5efd5802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:59, skipping insertion in model container [2023-11-06 22:37:59,196 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:37:59" (1/1) ... [2023-11-06 22:37:59,243 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:37:59,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:37:59,621 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:37:59,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:37:59,712 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:37:59,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:59 WrapperNode [2023-11-06 22:37:59,713 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:37:59,714 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:37:59,714 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:37:59,714 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:37:59,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:59" (1/1) ... [2023-11-06 22:37:59,754 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:59" (1/1) ... [2023-11-06 22:37:59,799 INFO L138 Inliner]: procedures = 170, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 97 [2023-11-06 22:37:59,799 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:37:59,800 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:37:59,800 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:37:59,800 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:37:59,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:59" (1/1) ... [2023-11-06 22:37:59,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:59" (1/1) ... [2023-11-06 22:37:59,830 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:59" (1/1) ... [2023-11-06 22:37:59,831 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:59" (1/1) ... [2023-11-06 22:37:59,854 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:59" (1/1) ... [2023-11-06 22:37:59,861 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:59" (1/1) ... [2023-11-06 22:37:59,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:59" (1/1) ... [2023-11-06 22:37:59,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:59" (1/1) ... [2023-11-06 22:37:59,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:37:59,870 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:37:59,871 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:37:59,871 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:37:59,872 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:59" (1/1) ... [2023-11-06 22:37:59,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:37:59,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc6b679c-0783-4720-859b-4450e7cc2ec6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:37:59,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc6b679c-0783-4720-859b-4450e7cc2ec6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:37:59,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc6b679c-0783-4720-859b-4450e7cc2ec6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:37:59,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:37:59,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:37:59,969 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:37:59,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:37:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:37:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 22:37:59,970 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 22:37:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:37:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:37:59,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:37:59,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:37:59,973 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 22:38:00,162 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:38:00,174 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:38:00,589 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:38:00,600 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:38:00,600 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-11-06 22:38:00,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:38:00 BoogieIcfgContainer [2023-11-06 22:38:00,604 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:38:00,608 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:38:00,608 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:38:00,613 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:38:00,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:37:59" (1/3) ... [2023-11-06 22:38:00,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a14692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:38:00, skipping insertion in model container [2023-11-06 22:38:00,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:37:59" (2/3) ... [2023-11-06 22:38:00,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a14692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:38:00, skipping insertion in model container [2023-11-06 22:38:00,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:38:00" (3/3) ... [2023-11-06 22:38:00,617 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_11-ptr_racing.i [2023-11-06 22:38:00,629 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:38:00,644 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:38:00,644 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 22:38:00,645 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:38:00,816 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-06 22:38:00,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 163 transitions, 333 flow [2023-11-06 22:38:01,073 INFO L124 PetriNetUnfolderBase]: 19/219 cut-off events. [2023-11-06 22:38:01,073 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:38:01,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 219 events. 19/219 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 704 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 122. Up to 4 conditions per place. [2023-11-06 22:38:01,083 INFO L82 GeneralOperation]: Start removeDead. Operand has 153 places, 163 transitions, 333 flow [2023-11-06 22:38:01,096 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 163 transitions, 333 flow [2023-11-06 22:38:01,100 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:38:01,124 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 163 transitions, 333 flow [2023-11-06 22:38:01,133 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 163 transitions, 333 flow [2023-11-06 22:38:01,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 163 transitions, 333 flow [2023-11-06 22:38:01,214 INFO L124 PetriNetUnfolderBase]: 19/219 cut-off events. [2023-11-06 22:38:01,215 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:38:01,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 219 events. 19/219 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 704 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 122. Up to 4 conditions per place. [2023-11-06 22:38:01,228 INFO L119 LiptonReduction]: Number of co-enabled transitions 7564 [2023-11-06 22:38:05,919 INFO L134 LiptonReduction]: Checked pairs total: 31487 [2023-11-06 22:38:05,919 INFO L136 LiptonReduction]: Total number of compositions: 113 [2023-11-06 22:38:05,937 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:38:05,945 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;@7eedf7d6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:38:05,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-06 22:38:05,951 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:38:05,951 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2023-11-06 22:38:05,951 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:38:05,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:05,952 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-06 22:38:05,953 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-11-06 22:38:05,958 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:05,958 INFO L85 PathProgramCache]: Analyzing trace with hash 181314064, now seen corresponding path program 1 times [2023-11-06 22:38:05,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:05,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959915520] [2023-11-06 22:38:05,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:05,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:06,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:38:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:06,186 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:38:06,188 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:38:06,190 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2023-11-06 22:38:06,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-11-06 22:38:06,193 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2023-11-06 22:38:06,193 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-11-06 22:38:06,193 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-11-06 22:38:06,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-11-06 22:38:06,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-11-06 22:38:06,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-11-06 22:38:06,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-11-06 22:38:06,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-11-06 22:38:06,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-11-06 22:38:06,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:38:06,197 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-06 22:38:06,201 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 22:38:06,201 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-06 22:38:06,266 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:38:06,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 226 transitions, 468 flow [2023-11-06 22:38:06,388 INFO L124 PetriNetUnfolderBase]: 34/370 cut-off events. [2023-11-06 22:38:06,388 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 22:38:06,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 370 events. 34/370 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1473 event pairs, 0 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 221. Up to 8 conditions per place. [2023-11-06 22:38:06,394 INFO L82 GeneralOperation]: Start removeDead. Operand has 211 places, 226 transitions, 468 flow [2023-11-06 22:38:06,402 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 211 places, 226 transitions, 468 flow [2023-11-06 22:38:06,403 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:38:06,403 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 226 transitions, 468 flow [2023-11-06 22:38:06,404 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 226 transitions, 468 flow [2023-11-06 22:38:06,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 226 transitions, 468 flow [2023-11-06 22:38:06,473 INFO L124 PetriNetUnfolderBase]: 34/370 cut-off events. [2023-11-06 22:38:06,473 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 22:38:06,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 370 events. 34/370 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1473 event pairs, 0 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 221. Up to 8 conditions per place. [2023-11-06 22:38:06,498 INFO L119 LiptonReduction]: Number of co-enabled transitions 23912 [2023-11-06 22:38:11,089 INFO L134 LiptonReduction]: Checked pairs total: 103538 [2023-11-06 22:38:11,089 INFO L136 LiptonReduction]: Total number of compositions: 134 [2023-11-06 22:38:11,092 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:38:11,094 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;@7eedf7d6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:38:11,094 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-06 22:38:11,103 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:38:11,104 INFO L124 PetriNetUnfolderBase]: 4/51 cut-off events. [2023-11-06 22:38:11,104 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:38:11,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:11,104 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:38:11,105 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2023-11-06 22:38:11,105 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:11,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1642475220, now seen corresponding path program 1 times [2023-11-06 22:38:11,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:11,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523637687] [2023-11-06 22:38:11,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:11,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:11,293 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 22:38:11,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:11,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523637687] [2023-11-06 22:38:11,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523637687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:38:11,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:38:11,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:38:11,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595621268] [2023-11-06 22:38:11,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:38:11,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:38:11,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:11,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:38:11,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:38:11,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 360 [2023-11-06 22:38:11,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 115 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 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 22:38:11,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:38:11,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 360 [2023-11-06 22:38:11,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:38:12,875 INFO L124 PetriNetUnfolderBase]: 3146/8037 cut-off events. [2023-11-06 22:38:12,876 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2023-11-06 22:38:12,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13147 conditions, 8037 events. 3146/8037 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 70660 event pairs, 2981 based on Foata normal form. 862/8326 useless extension candidates. Maximal degree in co-relation 9353. Up to 5023 conditions per place. [2023-11-06 22:38:12,942 INFO L140 encePairwiseOnDemand]: 342/360 looper letters, 51 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2023-11-06 22:38:12,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 114 transitions, 350 flow [2023-11-06 22:38:12,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:38:12,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:38:12,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 666 transitions. [2023-11-06 22:38:12,959 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6166666666666667 [2023-11-06 22:38:12,960 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 666 transitions. [2023-11-06 22:38:12,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 666 transitions. [2023-11-06 22:38:12,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:38:12,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 666 transitions. [2023-11-06 22:38:12,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 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 22:38:12,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 360.0) internal successors, (1440), 4 states have internal predecessors, (1440), 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 22:38:12,979 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 360.0) internal successors, (1440), 4 states have internal predecessors, (1440), 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 22:38:12,981 INFO L175 Difference]: Start difference. First operand has 103 places, 115 transitions, 246 flow. Second operand 3 states and 666 transitions. [2023-11-06 22:38:12,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 114 transitions, 350 flow [2023-11-06 22:38:12,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 114 transitions, 350 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:38:12,994 INFO L231 Difference]: Finished difference. Result has 106 places, 101 transitions, 228 flow [2023-11-06 22:38:12,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=360, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=106, PETRI_TRANSITIONS=101} [2023-11-06 22:38:13,000 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 3 predicate places. [2023-11-06 22:38:13,000 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 101 transitions, 228 flow [2023-11-06 22:38:13,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 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 22:38:13,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:13,001 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-06 22:38:13,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:38:13,002 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2023-11-06 22:38:13,002 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:13,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1460012220, now seen corresponding path program 1 times [2023-11-06 22:38:13,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:13,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814977636] [2023-11-06 22:38:13,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:13,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:13,031 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:38:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:38:13,058 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:38:13,058 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:38:13,058 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2023-11-06 22:38:13,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-11-06 22:38:13,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-11-06 22:38:13,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-11-06 22:38:13,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-11-06 22:38:13,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-11-06 22:38:13,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2023-11-06 22:38:13,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-11-06 22:38:13,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-11-06 22:38:13,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-11-06 22:38:13,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-11-06 22:38:13,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-11-06 22:38:13,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-11-06 22:38:13,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-11-06 22:38:13,062 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-11-06 22:38:13,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:38:13,062 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:38:13,063 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 22:38:13,063 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-06 22:38:13,111 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 22:38:13,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 269 places, 289 transitions, 605 flow [2023-11-06 22:38:13,224 INFO L124 PetriNetUnfolderBase]: 54/568 cut-off events. [2023-11-06 22:38:13,225 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-06 22:38:13,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 568 events. 54/568 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2543 event pairs, 1 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 378. Up to 16 conditions per place. [2023-11-06 22:38:13,235 INFO L82 GeneralOperation]: Start removeDead. Operand has 269 places, 289 transitions, 605 flow [2023-11-06 22:38:13,243 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 269 places, 289 transitions, 605 flow [2023-11-06 22:38:13,244 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:38:13,244 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 269 places, 289 transitions, 605 flow [2023-11-06 22:38:13,244 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 269 places, 289 transitions, 605 flow [2023-11-06 22:38:13,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 269 places, 289 transitions, 605 flow [2023-11-06 22:38:13,419 INFO L124 PetriNetUnfolderBase]: 54/568 cut-off events. [2023-11-06 22:38:13,420 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-06 22:38:13,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 568 events. 54/568 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2543 event pairs, 1 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 378. Up to 16 conditions per place. [2023-11-06 22:38:13,465 INFO L119 LiptonReduction]: Number of co-enabled transitions 47580 [2023-11-06 22:38:18,229 INFO L134 LiptonReduction]: Checked pairs total: 220487 [2023-11-06 22:38:18,231 INFO L136 LiptonReduction]: Total number of compositions: 160 [2023-11-06 22:38:18,234 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:38:18,235 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;@7eedf7d6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:38:18,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2023-11-06 22:38:18,240 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:38:18,241 INFO L124 PetriNetUnfolderBase]: 4/44 cut-off events. [2023-11-06 22:38:18,241 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:38:18,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:18,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:38:18,247 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2023-11-06 22:38:18,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:18,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1260507887, now seen corresponding path program 1 times [2023-11-06 22:38:18,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:18,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434867244] [2023-11-06 22:38:18,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:18,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:18,371 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 22:38:18,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:18,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434867244] [2023-11-06 22:38:18,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434867244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:38:18,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:38:18,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:38:18,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868869886] [2023-11-06 22:38:18,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:38:18,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:38:18,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:18,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:38:18,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:38:18,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 449 [2023-11-06 22:38:18,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 158 transitions, 343 flow. Second operand has 3 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 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 22:38:18,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:38:18,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 449 [2023-11-06 22:38:18,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:38:36,102 INFO L124 PetriNetUnfolderBase]: 65023/129201 cut-off events. [2023-11-06 22:38:36,102 INFO L125 PetriNetUnfolderBase]: For 2286/2286 co-relation queries the response was YES. [2023-11-06 22:38:36,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220968 conditions, 129201 events. 65023/129201 cut-off events. For 2286/2286 co-relation queries the response was YES. Maximal size of possible extension queue 2701. Compared 1454195 event pairs, 42073 based on Foata normal form. 13330/133115 useless extension candidates. Maximal degree in co-relation 13354. Up to 90443 conditions per place. [2023-11-06 22:38:37,371 INFO L140 encePairwiseOnDemand]: 425/449 looper letters, 65 selfloop transitions, 2 changer transitions 0/151 dead transitions. [2023-11-06 22:38:37,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 151 transitions, 463 flow [2023-11-06 22:38:37,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:38:37,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:38:37,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 851 transitions. [2023-11-06 22:38:37,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6317743132887899 [2023-11-06 22:38:37,380 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 851 transitions. [2023-11-06 22:38:37,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 851 transitions. [2023-11-06 22:38:37,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:38:37,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 851 transitions. [2023-11-06 22:38:37,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 283.6666666666667) internal successors, (851), 3 states have internal predecessors, (851), 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 22:38:37,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 22:38:37,393 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 449.0) internal successors, (1796), 4 states have internal predecessors, (1796), 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 22:38:37,394 INFO L175 Difference]: Start difference. First operand has 141 places, 158 transitions, 343 flow. Second operand 3 states and 851 transitions. [2023-11-06 22:38:37,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 151 transitions, 463 flow [2023-11-06 22:38:37,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 151 transitions, 463 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:38:37,408 INFO L231 Difference]: Finished difference. Result has 144 places, 138 transitions, 313 flow [2023-11-06 22:38:37,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=449, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=313, PETRI_PLACES=144, PETRI_TRANSITIONS=138} [2023-11-06 22:38:37,412 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 3 predicate places. [2023-11-06 22:38:37,413 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 138 transitions, 313 flow [2023-11-06 22:38:37,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 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 22:38:37,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:38:37,414 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:38:37,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:38:37,415 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2023-11-06 22:38:37,416 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:38:37,416 INFO L85 PathProgramCache]: Analyzing trace with hash 2147200559, now seen corresponding path program 1 times [2023-11-06 22:38:37,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:38:37,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225937459] [2023-11-06 22:38:37,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:38:37,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:38:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:38:37,913 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 22:38:37,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:38:37,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225937459] [2023-11-06 22:38:37,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225937459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:38:37,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:38:37,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:38:37,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809492777] [2023-11-06 22:38:37,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:38:37,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:38:37,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:38:37,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:38:37,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:38:38,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 449 [2023-11-06 22:38:38,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 138 transitions, 313 flow. Second operand has 6 states, 6 states have (on average 220.66666666666666) internal successors, (1324), 6 states have internal predecessors, (1324), 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 22:38:38,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:38:38,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 449 [2023-11-06 22:38:38,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand