./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/security.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/security.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0a3d6a7be4cff77b59978ea166f504665a94bd97447fe28973d9c58d928e868d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:51:00,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:51:00,500 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:51:00,511 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:51:00,512 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:51:00,566 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:51:00,567 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:51:00,568 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:51:00,569 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:51:00,575 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:51:00,576 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:51:00,577 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:51:00,578 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:51:00,580 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:51:00,581 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:51:00,581 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:51:00,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:51:00,582 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:51:00,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:51:00,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:51:00,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:51:00,585 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:51:00,585 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:51:00,586 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:51:00,587 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:51:00,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:51:00,588 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:51:00,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:51:00,590 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:51:00,590 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:51:00,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:00,592 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:51:00,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:51:00,593 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:51:00,593 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:51:00,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:51:00,594 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:51:00,594 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:51:00,595 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:51:00,595 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:51:00,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:51:00,596 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_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a3d6a7be4cff77b59978ea166f504665a94bd97447fe28973d9c58d928e868d [2023-11-26 11:51:00,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:51:01,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:51:01,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:51:01,023 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:51:01,024 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:51:01,025 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/security.wvr.c [2023-11-26 11:51:04,152 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:51:04,475 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:51:04,476 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/sv-benchmarks/c/weaver/security.wvr.c [2023-11-26 11:51:04,489 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme/data/695aef661/9c56b8470b1947daab89e8dd6b25e30a/FLAG58862b4dd [2023-11-26 11:51:04,513 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme/data/695aef661/9c56b8470b1947daab89e8dd6b25e30a [2023-11-26 11:51:04,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:51:04,523 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:51:04,528 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:04,528 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:51:04,535 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:51:04,536 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:04" (1/1) ... [2023-11-26 11:51:04,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dd6c9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:04, skipping insertion in model container [2023-11-26 11:51:04,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:04" (1/1) ... [2023-11-26 11:51:04,570 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:51:04,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:04,840 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:51:04,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:04,894 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:51:04,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:04 WrapperNode [2023-11-26 11:51:04,895 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:04,896 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:04,896 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:51:04,897 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:51:04,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:04" (1/1) ... [2023-11-26 11:51:04,917 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:04" (1/1) ... [2023-11-26 11:51:04,947 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2023-11-26 11:51:04,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:04,948 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:51:04,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:51:04,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:51:04,961 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:04" (1/1) ... [2023-11-26 11:51:04,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:04" (1/1) ... [2023-11-26 11:51:04,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:04" (1/1) ... [2023-11-26 11:51:04,966 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:04" (1/1) ... [2023-11-26 11:51:04,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:04" (1/1) ... [2023-11-26 11:51:04,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:04" (1/1) ... [2023-11-26 11:51:04,984 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:04" (1/1) ... [2023-11-26 11:51:04,985 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:04" (1/1) ... [2023-11-26 11:51:04,989 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:51:04,990 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:51:04,990 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:51:04,990 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:51:04,992 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:04" (1/1) ... [2023-11-26 11:51:05,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:05,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:05,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:05,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:51:05,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:51:05,087 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 11:51:05,088 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 11:51:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 11:51:05,088 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 11:51:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:51:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:51:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:51:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:51:05,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:51:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:51:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:51:05,091 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:51:05,244 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:51:05,249 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:51:05,700 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:51:05,716 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:51:05,716 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:51:05,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:05 BoogieIcfgContainer [2023-11-26 11:51:05,718 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:51:05,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:51:05,724 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:51:05,728 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:51:05,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:51:04" (1/3) ... [2023-11-26 11:51:05,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff7bfa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:05, skipping insertion in model container [2023-11-26 11:51:05,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:04" (2/3) ... [2023-11-26 11:51:05,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff7bfa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:05, skipping insertion in model container [2023-11-26 11:51:05,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:05" (3/3) ... [2023-11-26 11:51:05,736 INFO L112 eAbstractionObserver]: Analyzing ICFG security.wvr.c [2023-11-26 11:51:05,751 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:51:05,760 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:51:05,760 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-11-26 11:51:05,760 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:51:05,893 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 11:51:05,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 165 transitions, 344 flow [2023-11-26 11:51:06,041 INFO L124 PetriNetUnfolderBase]: 3/163 cut-off events. [2023-11-26 11:51:06,041 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 11:51:06,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 163 events. 3/163 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 251 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 101. Up to 2 conditions per place. [2023-11-26 11:51:06,054 INFO L82 GeneralOperation]: Start removeDead. Operand has 169 places, 165 transitions, 344 flow [2023-11-26 11:51:06,063 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 142 transitions, 296 flow [2023-11-26 11:51:06,075 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:51:06,084 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@f149f4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:51:06,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2023-11-26 11:51:06,095 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:51:06,095 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2023-11-26 11:51:06,096 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:51:06,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:06,097 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:06,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:06,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:06,105 INFO L85 PathProgramCache]: Analyzing trace with hash -175688006, now seen corresponding path program 1 times [2023-11-26 11:51:06,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:06,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565085494] [2023-11-26 11:51:06,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:06,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:06,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:06,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:06,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565085494] [2023-11-26 11:51:06,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565085494] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:06,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:06,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:06,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412677530] [2023-11-26 11:51:06,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:06,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:06,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:06,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:06,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:06,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 165 [2023-11-26 11:51:06,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 142 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:06,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:06,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 165 [2023-11-26 11:51:06,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:06,673 INFO L124 PetriNetUnfolderBase]: 6/204 cut-off events. [2023-11-26 11:51:06,674 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-26 11:51:06,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 204 events. 6/204 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 517 event pairs, 3 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 161. Up to 16 conditions per place. [2023-11-26 11:51:06,680 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 9 selfloop transitions, 2 changer transitions 0/141 dead transitions. [2023-11-26 11:51:06,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 141 transitions, 316 flow [2023-11-26 11:51:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:06,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:06,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 462 transitions. [2023-11-26 11:51:06,715 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2023-11-26 11:51:06,716 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 462 transitions. [2023-11-26 11:51:06,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 462 transitions. [2023-11-26 11:51:06,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:06,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 462 transitions. [2023-11-26 11:51:06,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:06,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:06,747 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:06,749 INFO L175 Difference]: Start difference. First operand has 147 places, 142 transitions, 296 flow. Second operand 3 states and 462 transitions. [2023-11-26 11:51:06,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 141 transitions, 316 flow [2023-11-26 11:51:06,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 141 transitions, 308 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:51:06,765 INFO L231 Difference]: Finished difference. Result has 144 places, 141 transitions, 290 flow [2023-11-26 11:51:06,768 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=144, PETRI_TRANSITIONS=141} [2023-11-26 11:51:06,776 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -3 predicate places. [2023-11-26 11:51:06,777 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 141 transitions, 290 flow [2023-11-26 11:51:06,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:06,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:06,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:06,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:51:06,779 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:06,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:06,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1724557471, now seen corresponding path program 1 times [2023-11-26 11:51:06,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:06,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224368808] [2023-11-26 11:51:06,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:06,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:06,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:06,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:06,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224368808] [2023-11-26 11:51:06,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224368808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:06,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:06,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:06,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773394330] [2023-11-26 11:51:06,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:06,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:06,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:06,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:06,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:06,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 165 [2023-11-26 11:51:06,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 141 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:06,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:06,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 165 [2023-11-26 11:51:06,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:06,995 INFO L124 PetriNetUnfolderBase]: 8/183 cut-off events. [2023-11-26 11:51:06,996 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 11:51:06,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 183 events. 8/183 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 524 event pairs, 3 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 185. Up to 14 conditions per place. [2023-11-26 11:51:07,000 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 8 selfloop transitions, 2 changer transitions 0/141 dead transitions. [2023-11-26 11:51:07,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 141 transitions, 311 flow [2023-11-26 11:51:07,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:07,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:07,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 470 transitions. [2023-11-26 11:51:07,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9494949494949495 [2023-11-26 11:51:07,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 470 transitions. [2023-11-26 11:51:07,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 470 transitions. [2023-11-26 11:51:07,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:07,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 470 transitions. [2023-11-26 11:51:07,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,010 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,011 INFO L175 Difference]: Start difference. First operand has 144 places, 141 transitions, 290 flow. Second operand 3 states and 470 transitions. [2023-11-26 11:51:07,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 141 transitions, 311 flow [2023-11-26 11:51:07,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 141 transitions, 307 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:51:07,018 INFO L231 Difference]: Finished difference. Result has 143 places, 140 transitions, 288 flow [2023-11-26 11:51:07,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=143, PETRI_TRANSITIONS=140} [2023-11-26 11:51:07,020 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -4 predicate places. [2023-11-26 11:51:07,020 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 140 transitions, 288 flow [2023-11-26 11:51:07,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:07,021 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:07,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:51:07,022 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:07,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:07,023 INFO L85 PathProgramCache]: Analyzing trace with hash -2030875890, now seen corresponding path program 1 times [2023-11-26 11:51:07,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:07,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694206628] [2023-11-26 11:51:07,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:07,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:07,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:07,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:07,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694206628] [2023-11-26 11:51:07,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694206628] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:07,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:07,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:07,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067803099] [2023-11-26 11:51:07,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:07,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:07,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:07,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:07,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:07,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 165 [2023-11-26 11:51:07,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 140 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:07,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 165 [2023-11-26 11:51:07,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:07,238 INFO L124 PetriNetUnfolderBase]: 8/190 cut-off events. [2023-11-26 11:51:07,238 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2023-11-26 11:51:07,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 190 events. 8/190 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 417 event pairs, 2 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 175. Up to 14 conditions per place. [2023-11-26 11:51:07,245 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 8 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2023-11-26 11:51:07,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 140 transitions, 309 flow [2023-11-26 11:51:07,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:07,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:07,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 470 transitions. [2023-11-26 11:51:07,249 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9494949494949495 [2023-11-26 11:51:07,249 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 470 transitions. [2023-11-26 11:51:07,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 470 transitions. [2023-11-26 11:51:07,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:07,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 470 transitions. [2023-11-26 11:51:07,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,255 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,255 INFO L175 Difference]: Start difference. First operand has 143 places, 140 transitions, 288 flow. Second operand 3 states and 470 transitions. [2023-11-26 11:51:07,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 140 transitions, 309 flow [2023-11-26 11:51:07,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 140 transitions, 305 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:51:07,262 INFO L231 Difference]: Finished difference. Result has 142 places, 139 transitions, 286 flow [2023-11-26 11:51:07,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=142, PETRI_TRANSITIONS=139} [2023-11-26 11:51:07,264 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -5 predicate places. [2023-11-26 11:51:07,264 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 139 transitions, 286 flow [2023-11-26 11:51:07,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:07,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:07,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:51:07,266 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:07,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:07,267 INFO L85 PathProgramCache]: Analyzing trace with hash -5715897, now seen corresponding path program 1 times [2023-11-26 11:51:07,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:07,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572943675] [2023-11-26 11:51:07,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:07,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:07,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:07,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:07,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572943675] [2023-11-26 11:51:07,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572943675] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:07,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:07,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:07,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239070228] [2023-11-26 11:51:07,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:07,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:07,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:07,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:07,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:07,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 165 [2023-11-26 11:51:07,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 139 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:07,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 165 [2023-11-26 11:51:07,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:07,407 INFO L124 PetriNetUnfolderBase]: 4/221 cut-off events. [2023-11-26 11:51:07,407 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 11:51:07,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 221 events. 4/221 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 691 event pairs, 1 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 188. Up to 8 conditions per place. [2023-11-26 11:51:07,410 INFO L140 encePairwiseOnDemand]: 163/165 looper letters, 9 selfloop transitions, 1 changer transitions 0/141 dead transitions. [2023-11-26 11:51:07,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 141 transitions, 313 flow [2023-11-26 11:51:07,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:07,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:07,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2023-11-26 11:51:07,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9616161616161616 [2023-11-26 11:51:07,413 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2023-11-26 11:51:07,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2023-11-26 11:51:07,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:07,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2023-11-26 11:51:07,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,419 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,419 INFO L175 Difference]: Start difference. First operand has 142 places, 139 transitions, 286 flow. Second operand 3 states and 476 transitions. [2023-11-26 11:51:07,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 141 transitions, 313 flow [2023-11-26 11:51:07,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 141 transitions, 309 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:51:07,424 INFO L231 Difference]: Finished difference. Result has 141 places, 138 transitions, 282 flow [2023-11-26 11:51:07,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=141, PETRI_TRANSITIONS=138} [2023-11-26 11:51:07,426 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -6 predicate places. [2023-11-26 11:51:07,426 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 138 transitions, 282 flow [2023-11-26 11:51:07,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:07,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:07,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:51:07,428 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:07,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:07,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1227581687, now seen corresponding path program 1 times [2023-11-26 11:51:07,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:07,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216672476] [2023-11-26 11:51:07,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:07,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:07,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:07,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:07,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216672476] [2023-11-26 11:51:07,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216672476] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:07,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:07,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:07,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343245274] [2023-11-26 11:51:07,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:07,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:07,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:07,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:07,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:07,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 165 [2023-11-26 11:51:07,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 138 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:07,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 165 [2023-11-26 11:51:07,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:07,656 INFO L124 PetriNetUnfolderBase]: 11/341 cut-off events. [2023-11-26 11:51:07,657 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 11:51:07,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 341 events. 11/341 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1475 event pairs, 5 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 227. Up to 22 conditions per place. [2023-11-26 11:51:07,661 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 9 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2023-11-26 11:51:07,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 138 transitions, 305 flow [2023-11-26 11:51:07,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:07,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:07,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 468 transitions. [2023-11-26 11:51:07,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454545454545454 [2023-11-26 11:51:07,673 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 468 transitions. [2023-11-26 11:51:07,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 468 transitions. [2023-11-26 11:51:07,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:07,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 468 transitions. [2023-11-26 11:51:07,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,678 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,679 INFO L175 Difference]: Start difference. First operand has 141 places, 138 transitions, 282 flow. Second operand 3 states and 468 transitions. [2023-11-26 11:51:07,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 138 transitions, 305 flow [2023-11-26 11:51:07,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 138 transitions, 304 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:51:07,683 INFO L231 Difference]: Finished difference. Result has 141 places, 137 transitions, 283 flow [2023-11-26 11:51:07,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=283, PETRI_PLACES=141, PETRI_TRANSITIONS=137} [2023-11-26 11:51:07,688 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -6 predicate places. [2023-11-26 11:51:07,688 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 137 transitions, 283 flow [2023-11-26 11:51:07,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:07,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:07,689 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:07,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:51:07,691 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:07,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:07,694 INFO L85 PathProgramCache]: Analyzing trace with hash -2012490719, now seen corresponding path program 1 times [2023-11-26 11:51:07,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:07,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124888751] [2023-11-26 11:51:07,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:07,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:08,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:08,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:08,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124888751] [2023-11-26 11:51:08,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124888751] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:08,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:08,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:51:08,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412312898] [2023-11-26 11:51:08,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:08,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:51:08,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:08,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:51:08,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:51:08,484 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 165 [2023-11-26 11:51:08,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 137 transitions, 283 flow. Second operand has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:08,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:08,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 165 [2023-11-26 11:51:08,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:08,549 INFO L124 PetriNetUnfolderBase]: 1/166 cut-off events. [2023-11-26 11:51:08,549 INFO L125 PetriNetUnfolderBase]: For 4/16 co-relation queries the response was YES. [2023-11-26 11:51:08,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 166 events. 1/166 cut-off events. For 4/16 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 346 event pairs, 0 based on Foata normal form. 8/155 useless extension candidates. Maximal degree in co-relation 147. Up to 6 conditions per place. [2023-11-26 11:51:08,552 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 7 selfloop transitions, 4 changer transitions 0/136 dead transitions. [2023-11-26 11:51:08,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 136 transitions, 303 flow [2023-11-26 11:51:08,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:51:08,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:51:08,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 906 transitions. [2023-11-26 11:51:08,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9151515151515152 [2023-11-26 11:51:08,558 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 906 transitions. [2023-11-26 11:51:08,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 906 transitions. [2023-11-26 11:51:08,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:08,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 906 transitions. [2023-11-26 11:51:08,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 151.0) internal successors, (906), 6 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:08,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:08,570 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:08,570 INFO L175 Difference]: Start difference. First operand has 141 places, 137 transitions, 283 flow. Second operand 6 states and 906 transitions. [2023-11-26 11:51:08,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 136 transitions, 303 flow [2023-11-26 11:51:08,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 136 transitions, 299 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:51:08,576 INFO L231 Difference]: Finished difference. Result has 143 places, 136 transitions, 285 flow [2023-11-26 11:51:08,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=285, PETRI_PLACES=143, PETRI_TRANSITIONS=136} [2023-11-26 11:51:08,581 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -4 predicate places. [2023-11-26 11:51:08,582 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 136 transitions, 285 flow [2023-11-26 11:51:08,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:08,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:08,584 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:08,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:51:08,588 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:08,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:08,589 INFO L85 PathProgramCache]: Analyzing trace with hash -224128531, now seen corresponding path program 1 times [2023-11-26 11:51:08,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:08,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672220187] [2023-11-26 11:51:08,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:08,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:08,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:08,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:08,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672220187] [2023-11-26 11:51:08,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672220187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:08,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:08,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:08,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023319624] [2023-11-26 11:51:08,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:08,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:08,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:08,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:08,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:08,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 165 [2023-11-26 11:51:08,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 136 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:08,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:08,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 165 [2023-11-26 11:51:08,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:08,770 INFO L124 PetriNetUnfolderBase]: 11/336 cut-off events. [2023-11-26 11:51:08,771 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 11:51:08,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 336 events. 11/336 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1476 event pairs, 5 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 317. Up to 22 conditions per place. [2023-11-26 11:51:08,775 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 9 selfloop transitions, 2 changer transitions 0/136 dead transitions. [2023-11-26 11:51:08,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 136 transitions, 308 flow [2023-11-26 11:51:08,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:08,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:08,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 468 transitions. [2023-11-26 11:51:08,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454545454545454 [2023-11-26 11:51:08,779 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 468 transitions. [2023-11-26 11:51:08,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 468 transitions. [2023-11-26 11:51:08,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:08,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 468 transitions. [2023-11-26 11:51:08,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:08,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:08,785 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:08,785 INFO L175 Difference]: Start difference. First operand has 143 places, 136 transitions, 285 flow. Second operand 3 states and 468 transitions. [2023-11-26 11:51:08,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 136 transitions, 308 flow [2023-11-26 11:51:08,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 136 transitions, 301 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:51:08,790 INFO L231 Difference]: Finished difference. Result has 140 places, 135 transitions, 280 flow [2023-11-26 11:51:08,791 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=280, PETRI_PLACES=140, PETRI_TRANSITIONS=135} [2023-11-26 11:51:08,792 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -7 predicate places. [2023-11-26 11:51:08,792 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 135 transitions, 280 flow [2023-11-26 11:51:08,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:08,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:08,797 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:08,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:51:08,799 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:08,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:08,801 INFO L85 PathProgramCache]: Analyzing trace with hash 760878340, now seen corresponding path program 1 times [2023-11-26 11:51:08,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:08,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402532614] [2023-11-26 11:51:08,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:08,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:08,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:08,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:08,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402532614] [2023-11-26 11:51:08,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402532614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:08,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:08,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:08,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188671294] [2023-11-26 11:51:08,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:08,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:08,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:08,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:08,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:08,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 165 [2023-11-26 11:51:08,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 135 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:08,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:08,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 165 [2023-11-26 11:51:08,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:08,938 INFO L124 PetriNetUnfolderBase]: 9/293 cut-off events. [2023-11-26 11:51:08,939 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-26 11:51:08,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 293 events. 9/293 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1154 event pairs, 2 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 217. Up to 16 conditions per place. [2023-11-26 11:51:08,942 INFO L140 encePairwiseOnDemand]: 163/165 looper letters, 8 selfloop transitions, 1 changer transitions 0/135 dead transitions. [2023-11-26 11:51:08,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 135 transitions, 299 flow [2023-11-26 11:51:08,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:08,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:08,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 472 transitions. [2023-11-26 11:51:08,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9535353535353536 [2023-11-26 11:51:08,945 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 472 transitions. [2023-11-26 11:51:08,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 472 transitions. [2023-11-26 11:51:08,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:08,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 472 transitions. [2023-11-26 11:51:08,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:08,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:08,950 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:08,950 INFO L175 Difference]: Start difference. First operand has 140 places, 135 transitions, 280 flow. Second operand 3 states and 472 transitions. [2023-11-26 11:51:08,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 135 transitions, 299 flow [2023-11-26 11:51:08,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 135 transitions, 295 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:51:08,959 INFO L231 Difference]: Finished difference. Result has 139 places, 134 transitions, 276 flow [2023-11-26 11:51:08,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=139, PETRI_TRANSITIONS=134} [2023-11-26 11:51:08,964 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -8 predicate places. [2023-11-26 11:51:08,964 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 134 transitions, 276 flow [2023-11-26 11:51:08,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:08,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:08,965 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:08,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:51:08,966 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:08,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:08,966 INFO L85 PathProgramCache]: Analyzing trace with hash 2110143892, now seen corresponding path program 1 times [2023-11-26 11:51:08,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:08,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598676729] [2023-11-26 11:51:08,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:08,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:09,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:09,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:09,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598676729] [2023-11-26 11:51:09,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598676729] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:09,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:09,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:09,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388686162] [2023-11-26 11:51:09,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:09,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:09,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:09,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:09,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:09,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 165 [2023-11-26 11:51:09,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 134 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:09,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 165 [2023-11-26 11:51:09,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:09,111 INFO L124 PetriNetUnfolderBase]: 6/296 cut-off events. [2023-11-26 11:51:09,111 INFO L125 PetriNetUnfolderBase]: For 12/14 co-relation queries the response was YES. [2023-11-26 11:51:09,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 296 events. 6/296 cut-off events. For 12/14 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1021 event pairs, 2 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 279. Up to 12 conditions per place. [2023-11-26 11:51:09,115 INFO L140 encePairwiseOnDemand]: 163/165 looper letters, 8 selfloop transitions, 1 changer transitions 0/135 dead transitions. [2023-11-26 11:51:09,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 135 transitions, 298 flow [2023-11-26 11:51:09,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:09,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:09,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 475 transitions. [2023-11-26 11:51:09,118 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9595959595959596 [2023-11-26 11:51:09,118 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 475 transitions. [2023-11-26 11:51:09,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 475 transitions. [2023-11-26 11:51:09,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:09,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 475 transitions. [2023-11-26 11:51:09,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,124 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,124 INFO L175 Difference]: Start difference. First operand has 139 places, 134 transitions, 276 flow. Second operand 3 states and 475 transitions. [2023-11-26 11:51:09,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 135 transitions, 298 flow [2023-11-26 11:51:09,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 135 transitions, 297 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:51:09,130 INFO L231 Difference]: Finished difference. Result has 139 places, 133 transitions, 275 flow [2023-11-26 11:51:09,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=275, PETRI_PLACES=139, PETRI_TRANSITIONS=133} [2023-11-26 11:51:09,133 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -8 predicate places. [2023-11-26 11:51:09,133 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 133 transitions, 275 flow [2023-11-26 11:51:09,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:09,134 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:09,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:51:09,135 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:09,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:09,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1059657254, now seen corresponding path program 1 times [2023-11-26 11:51:09,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:09,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569732209] [2023-11-26 11:51:09,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:09,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:09,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:09,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:09,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569732209] [2023-11-26 11:51:09,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569732209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:09,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:09,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:09,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449509353] [2023-11-26 11:51:09,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:09,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:09,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:09,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:09,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:09,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 165 [2023-11-26 11:51:09,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 133 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:09,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 165 [2023-11-26 11:51:09,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:09,335 INFO L124 PetriNetUnfolderBase]: 28/418 cut-off events. [2023-11-26 11:51:09,335 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-26 11:51:09,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 418 events. 28/418 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2179 event pairs, 16 based on Foata normal form. 0/365 useless extension candidates. Maximal degree in co-relation 419. Up to 70 conditions per place. [2023-11-26 11:51:09,339 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 10 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2023-11-26 11:51:09,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 134 transitions, 302 flow [2023-11-26 11:51:09,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:09,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:09,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 470 transitions. [2023-11-26 11:51:09,343 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9494949494949495 [2023-11-26 11:51:09,343 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 470 transitions. [2023-11-26 11:51:09,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 470 transitions. [2023-11-26 11:51:09,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:09,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 470 transitions. [2023-11-26 11:51:09,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,349 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,349 INFO L175 Difference]: Start difference. First operand has 139 places, 133 transitions, 275 flow. Second operand 3 states and 470 transitions. [2023-11-26 11:51:09,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 134 transitions, 302 flow [2023-11-26 11:51:09,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 134 transitions, 301 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:51:09,354 INFO L231 Difference]: Finished difference. Result has 139 places, 133 transitions, 284 flow [2023-11-26 11:51:09,355 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=139, PETRI_TRANSITIONS=133} [2023-11-26 11:51:09,357 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -8 predicate places. [2023-11-26 11:51:09,357 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 133 transitions, 284 flow [2023-11-26 11:51:09,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:09,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:09,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:51:09,359 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:09,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:09,360 INFO L85 PathProgramCache]: Analyzing trace with hash 594145846, now seen corresponding path program 1 times [2023-11-26 11:51:09,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:09,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983320079] [2023-11-26 11:51:09,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:09,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:09,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:09,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:09,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983320079] [2023-11-26 11:51:09,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983320079] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:09,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:09,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:09,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940128765] [2023-11-26 11:51:09,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:09,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:09,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:09,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:09,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:09,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 165 [2023-11-26 11:51:09,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 133 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:09,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 165 [2023-11-26 11:51:09,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:09,497 INFO L124 PetriNetUnfolderBase]: 18/327 cut-off events. [2023-11-26 11:51:09,497 INFO L125 PetriNetUnfolderBase]: For 20/22 co-relation queries the response was YES. [2023-11-26 11:51:09,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 327 events. 18/327 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1431 event pairs, 8 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 351. Up to 34 conditions per place. [2023-11-26 11:51:09,500 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 9 selfloop transitions, 2 changer transitions 0/133 dead transitions. [2023-11-26 11:51:09,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 133 transitions, 307 flow [2023-11-26 11:51:09,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:09,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:09,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 468 transitions. [2023-11-26 11:51:09,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454545454545454 [2023-11-26 11:51:09,502 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 468 transitions. [2023-11-26 11:51:09,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 468 transitions. [2023-11-26 11:51:09,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:09,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 468 transitions. [2023-11-26 11:51:09,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,507 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,507 INFO L175 Difference]: Start difference. First operand has 139 places, 133 transitions, 284 flow. Second operand 3 states and 468 transitions. [2023-11-26 11:51:09,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 133 transitions, 307 flow [2023-11-26 11:51:09,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 133 transitions, 307 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:51:09,511 INFO L231 Difference]: Finished difference. Result has 140 places, 132 transitions, 286 flow [2023-11-26 11:51:09,511 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=140, PETRI_TRANSITIONS=132} [2023-11-26 11:51:09,512 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -7 predicate places. [2023-11-26 11:51:09,512 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 132 transitions, 286 flow [2023-11-26 11:51:09,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:09,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:09,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:51:09,513 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:09,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:09,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1890624774, now seen corresponding path program 1 times [2023-11-26 11:51:09,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:09,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756371476] [2023-11-26 11:51:09,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:09,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:09,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:09,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:09,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756371476] [2023-11-26 11:51:09,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756371476] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:09,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:09,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:09,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636934170] [2023-11-26 11:51:09,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:09,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:09,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:09,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:09,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:09,572 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 165 [2023-11-26 11:51:09,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 132 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:09,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 165 [2023-11-26 11:51:09,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:09,631 INFO L124 PetriNetUnfolderBase]: 18/308 cut-off events. [2023-11-26 11:51:09,631 INFO L125 PetriNetUnfolderBase]: For 23/25 co-relation queries the response was YES. [2023-11-26 11:51:09,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 308 events. 18/308 cut-off events. For 23/25 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1327 event pairs, 10 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 338. Up to 34 conditions per place. [2023-11-26 11:51:09,634 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 9 selfloop transitions, 2 changer transitions 0/132 dead transitions. [2023-11-26 11:51:09,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 132 transitions, 309 flow [2023-11-26 11:51:09,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:09,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:09,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 468 transitions. [2023-11-26 11:51:09,636 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454545454545454 [2023-11-26 11:51:09,637 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 468 transitions. [2023-11-26 11:51:09,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 468 transitions. [2023-11-26 11:51:09,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:09,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 468 transitions. [2023-11-26 11:51:09,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,643 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,643 INFO L175 Difference]: Start difference. First operand has 140 places, 132 transitions, 286 flow. Second operand 3 states and 468 transitions. [2023-11-26 11:51:09,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 132 transitions, 309 flow [2023-11-26 11:51:09,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 132 transitions, 305 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:51:09,647 INFO L231 Difference]: Finished difference. Result has 139 places, 131 transitions, 284 flow [2023-11-26 11:51:09,647 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=139, PETRI_TRANSITIONS=131} [2023-11-26 11:51:09,648 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -8 predicate places. [2023-11-26 11:51:09,649 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 131 transitions, 284 flow [2023-11-26 11:51:09,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:09,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:09,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:51:09,650 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:09,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:09,651 INFO L85 PathProgramCache]: Analyzing trace with hash 639102400, now seen corresponding path program 1 times [2023-11-26 11:51:09,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:09,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430894863] [2023-11-26 11:51:09,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:09,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:09,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:09,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:09,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430894863] [2023-11-26 11:51:09,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430894863] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:09,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:09,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:09,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892384663] [2023-11-26 11:51:09,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:09,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:09,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:09,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:09,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:09,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 165 [2023-11-26 11:51:09,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 131 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:09,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 165 [2023-11-26 11:51:09,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:09,760 INFO L124 PetriNetUnfolderBase]: 16/298 cut-off events. [2023-11-26 11:51:09,760 INFO L125 PetriNetUnfolderBase]: For 21/23 co-relation queries the response was YES. [2023-11-26 11:51:09,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 298 events. 16/298 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1263 event pairs, 4 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 323. Up to 24 conditions per place. [2023-11-26 11:51:09,762 INFO L140 encePairwiseOnDemand]: 163/165 looper letters, 8 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2023-11-26 11:51:09,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 131 transitions, 303 flow [2023-11-26 11:51:09,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:09,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:09,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 472 transitions. [2023-11-26 11:51:09,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9535353535353536 [2023-11-26 11:51:09,765 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 472 transitions. [2023-11-26 11:51:09,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 472 transitions. [2023-11-26 11:51:09,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:09,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 472 transitions. [2023-11-26 11:51:09,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,779 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,779 INFO L175 Difference]: Start difference. First operand has 139 places, 131 transitions, 284 flow. Second operand 3 states and 472 transitions. [2023-11-26 11:51:09,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 131 transitions, 303 flow [2023-11-26 11:51:09,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 131 transitions, 299 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:51:09,785 INFO L231 Difference]: Finished difference. Result has 138 places, 130 transitions, 280 flow [2023-11-26 11:51:09,785 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=280, PETRI_PLACES=138, PETRI_TRANSITIONS=130} [2023-11-26 11:51:09,787 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -9 predicate places. [2023-11-26 11:51:09,787 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 130 transitions, 280 flow [2023-11-26 11:51:09,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:09,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:09,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:51:09,788 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:09,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:09,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1149019095, now seen corresponding path program 1 times [2023-11-26 11:51:09,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:09,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423980150] [2023-11-26 11:51:09,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:09,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:09,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:09,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:09,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423980150] [2023-11-26 11:51:09,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423980150] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:09,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:09,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:09,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116353044] [2023-11-26 11:51:09,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:09,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:09,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:09,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:09,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:09,838 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 165 [2023-11-26 11:51:09,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 130 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:09,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 165 [2023-11-26 11:51:09,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:09,913 INFO L124 PetriNetUnfolderBase]: 12/354 cut-off events. [2023-11-26 11:51:09,913 INFO L125 PetriNetUnfolderBase]: For 6/28 co-relation queries the response was YES. [2023-11-26 11:51:09,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 354 events. 12/354 cut-off events. For 6/28 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1568 event pairs, 4 based on Foata normal form. 6/334 useless extension candidates. Maximal degree in co-relation 261. Up to 25 conditions per place. [2023-11-26 11:51:09,916 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 8 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2023-11-26 11:51:09,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 130 transitions, 301 flow [2023-11-26 11:51:09,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:09,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:09,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 470 transitions. [2023-11-26 11:51:09,919 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9494949494949495 [2023-11-26 11:51:09,919 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 470 transitions. [2023-11-26 11:51:09,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 470 transitions. [2023-11-26 11:51:09,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:09,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 470 transitions. [2023-11-26 11:51:09,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,924 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,924 INFO L175 Difference]: Start difference. First operand has 138 places, 130 transitions, 280 flow. Second operand 3 states and 470 transitions. [2023-11-26 11:51:09,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 130 transitions, 301 flow [2023-11-26 11:51:09,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 130 transitions, 300 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:51:09,929 INFO L231 Difference]: Finished difference. Result has 138 places, 129 transitions, 281 flow [2023-11-26 11:51:09,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=281, PETRI_PLACES=138, PETRI_TRANSITIONS=129} [2023-11-26 11:51:09,930 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -9 predicate places. [2023-11-26 11:51:09,930 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 129 transitions, 281 flow [2023-11-26 11:51:09,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:09,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:09,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:51:09,932 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:09,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:09,933 INFO L85 PathProgramCache]: Analyzing trace with hash -706842811, now seen corresponding path program 1 times [2023-11-26 11:51:09,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:09,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502161238] [2023-11-26 11:51:09,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:09,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:09,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:09,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:09,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502161238] [2023-11-26 11:51:09,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502161238] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:09,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:09,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:09,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362938761] [2023-11-26 11:51:09,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:09,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:09,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:09,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:09,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:09,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 165 [2023-11-26 11:51:09,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 129 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:09,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 165 [2023-11-26 11:51:09,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:10,044 INFO L124 PetriNetUnfolderBase]: 20/282 cut-off events. [2023-11-26 11:51:10,044 INFO L125 PetriNetUnfolderBase]: For 22/33 co-relation queries the response was YES. [2023-11-26 11:51:10,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 282 events. 20/282 cut-off events. For 22/33 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1120 event pairs, 8 based on Foata normal form. 3/266 useless extension candidates. Maximal degree in co-relation 333. Up to 41 conditions per place. [2023-11-26 11:51:10,046 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 8 selfloop transitions, 2 changer transitions 0/129 dead transitions. [2023-11-26 11:51:10,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 129 transitions, 302 flow [2023-11-26 11:51:10,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:10,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:10,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 470 transitions. [2023-11-26 11:51:10,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9494949494949495 [2023-11-26 11:51:10,049 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 470 transitions. [2023-11-26 11:51:10,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 470 transitions. [2023-11-26 11:51:10,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:10,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 470 transitions. [2023-11-26 11:51:10,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:10,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:10,053 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:10,054 INFO L175 Difference]: Start difference. First operand has 138 places, 129 transitions, 281 flow. Second operand 3 states and 470 transitions. [2023-11-26 11:51:10,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 129 transitions, 302 flow [2023-11-26 11:51:10,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 129 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:51:10,057 INFO L231 Difference]: Finished difference. Result has 137 places, 128 transitions, 279 flow [2023-11-26 11:51:10,058 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=137, PETRI_TRANSITIONS=128} [2023-11-26 11:51:10,059 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -10 predicate places. [2023-11-26 11:51:10,060 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 128 transitions, 279 flow [2023-11-26 11:51:10,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:10,060 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:10,060 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:10,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:51:10,061 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:10,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:10,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1367877019, now seen corresponding path program 1 times [2023-11-26 11:51:10,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:10,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033918949] [2023-11-26 11:51:10,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:10,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:10,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:10,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:10,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033918949] [2023-11-26 11:51:10,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033918949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:10,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:10,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:51:10,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891558994] [2023-11-26 11:51:10,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:10,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:51:10,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:10,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:51:10,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:51:10,710 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 165 [2023-11-26 11:51:10,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 128 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 150.66666666666666) internal successors, (904), 6 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:10,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:10,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 165 [2023-11-26 11:51:10,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:10,765 INFO L124 PetriNetUnfolderBase]: 4/216 cut-off events. [2023-11-26 11:51:10,766 INFO L125 PetriNetUnfolderBase]: For 6/32 co-relation queries the response was YES. [2023-11-26 11:51:10,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 216 events. 4/216 cut-off events. For 6/32 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 665 event pairs, 0 based on Foata normal form. 16/222 useless extension candidates. Maximal degree in co-relation 225. Up to 12 conditions per place. [2023-11-26 11:51:10,767 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 7 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2023-11-26 11:51:10,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 127 transitions, 299 flow [2023-11-26 11:51:10,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:51:10,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:51:10,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 906 transitions. [2023-11-26 11:51:10,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9151515151515152 [2023-11-26 11:51:10,772 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 906 transitions. [2023-11-26 11:51:10,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 906 transitions. [2023-11-26 11:51:10,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:10,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 906 transitions. [2023-11-26 11:51:10,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 151.0) internal successors, (906), 6 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:10,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:10,779 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:10,780 INFO L175 Difference]: Start difference. First operand has 137 places, 128 transitions, 279 flow. Second operand 6 states and 906 transitions. [2023-11-26 11:51:10,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 127 transitions, 299 flow [2023-11-26 11:51:10,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 127 transitions, 295 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:51:10,784 INFO L231 Difference]: Finished difference. Result has 139 places, 127 transitions, 281 flow [2023-11-26 11:51:10,785 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=281, PETRI_PLACES=139, PETRI_TRANSITIONS=127} [2023-11-26 11:51:10,786 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -8 predicate places. [2023-11-26 11:51:10,786 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 127 transitions, 281 flow [2023-11-26 11:51:10,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.66666666666666) internal successors, (904), 6 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:10,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:10,789 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:10,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 11:51:10,789 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:10,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:10,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1178391979, now seen corresponding path program 1 times [2023-11-26 11:51:10,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:10,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391832215] [2023-11-26 11:51:10,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:10,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:10,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:10,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:10,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391832215] [2023-11-26 11:51:10,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391832215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:10,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:10,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:10,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717519377] [2023-11-26 11:51:10,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:10,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:10,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:10,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:10,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:10,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 165 [2023-11-26 11:51:10,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 127 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:10,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:10,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 165 [2023-11-26 11:51:10,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:10,924 INFO L124 PetriNetUnfolderBase]: 6/322 cut-off events. [2023-11-26 11:51:10,924 INFO L125 PetriNetUnfolderBase]: For 6/10 co-relation queries the response was YES. [2023-11-26 11:51:10,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 322 events. 6/322 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1313 event pairs, 2 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 337. Up to 16 conditions per place. [2023-11-26 11:51:10,926 INFO L140 encePairwiseOnDemand]: 163/165 looper letters, 6 selfloop transitions, 1 changer transitions 0/126 dead transitions. [2023-11-26 11:51:10,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 126 transitions, 293 flow [2023-11-26 11:51:10,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:10,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:10,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 473 transitions. [2023-11-26 11:51:10,929 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9555555555555556 [2023-11-26 11:51:10,929 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 473 transitions. [2023-11-26 11:51:10,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 473 transitions. [2023-11-26 11:51:10,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:10,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 473 transitions. [2023-11-26 11:51:10,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:10,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:10,934 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:10,934 INFO L175 Difference]: Start difference. First operand has 139 places, 127 transitions, 281 flow. Second operand 3 states and 473 transitions. [2023-11-26 11:51:10,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 126 transitions, 293 flow [2023-11-26 11:51:10,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 126 transitions, 286 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:51:10,938 INFO L231 Difference]: Finished difference. Result has 136 places, 126 transitions, 274 flow [2023-11-26 11:51:10,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=136, PETRI_TRANSITIONS=126} [2023-11-26 11:51:10,941 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -11 predicate places. [2023-11-26 11:51:10,941 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 126 transitions, 274 flow [2023-11-26 11:51:10,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:10,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:51:10,942 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:10,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 11:51:10,942 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2023-11-26 11:51:10,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:10,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1309634608, now seen corresponding path program 1 times [2023-11-26 11:51:10,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:10,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265809907] [2023-11-26 11:51:10,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:10,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:11,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:11,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:11,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265809907] [2023-11-26 11:51:11,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265809907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:11,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:11,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:11,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063249747] [2023-11-26 11:51:11,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:11,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:11,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:11,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:11,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:11,027 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 165 [2023-11-26 11:51:11,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 126 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:11,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:51:11,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 165 [2023-11-26 11:51:11,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:51:11,084 INFO L124 PetriNetUnfolderBase]: 8/241 cut-off events. [2023-11-26 11:51:11,084 INFO L125 PetriNetUnfolderBase]: For 10/12 co-relation queries the response was YES. [2023-11-26 11:51:11,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 241 events. 8/241 cut-off events. For 10/12 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 777 event pairs, 4 based on Foata normal form. 4/235 useless extension candidates. Maximal degree in co-relation 281. Up to 23 conditions per place. [2023-11-26 11:51:11,085 INFO L140 encePairwiseOnDemand]: 163/165 looper letters, 0 selfloop transitions, 0 changer transitions 125/125 dead transitions. [2023-11-26 11:51:11,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 125 transitions, 284 flow [2023-11-26 11:51:11,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:11,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:51:11,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 472 transitions. [2023-11-26 11:51:11,088 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9535353535353536 [2023-11-26 11:51:11,088 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 472 transitions. [2023-11-26 11:51:11,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 472 transitions. [2023-11-26 11:51:11,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:51:11,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 472 transitions. [2023-11-26 11:51:11,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:11,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:11,092 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:11,092 INFO L175 Difference]: Start difference. First operand has 136 places, 126 transitions, 274 flow. Second operand 3 states and 472 transitions. [2023-11-26 11:51:11,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 125 transitions, 284 flow [2023-11-26 11:51:11,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 125 transitions, 283 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:51:11,095 INFO L231 Difference]: Finished difference. Result has 136 places, 0 transitions, 0 flow [2023-11-26 11:51:11,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=134, 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=3, PETRI_FLOW=0, PETRI_PLACES=136, PETRI_TRANSITIONS=0} [2023-11-26 11:51:11,096 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, -11 predicate places. [2023-11-26 11:51:11,096 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 0 transitions, 0 flow [2023-11-26 11:51:11,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:11,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (34 of 35 remaining) [2023-11-26 11:51:11,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (33 of 35 remaining) [2023-11-26 11:51:11,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (32 of 35 remaining) [2023-11-26 11:51:11,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (31 of 35 remaining) [2023-11-26 11:51:11,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (30 of 35 remaining) [2023-11-26 11:51:11,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (29 of 35 remaining) [2023-11-26 11:51:11,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (28 of 35 remaining) [2023-11-26 11:51:11,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (27 of 35 remaining) [2023-11-26 11:51:11,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (26 of 35 remaining) [2023-11-26 11:51:11,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (25 of 35 remaining) [2023-11-26 11:51:11,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (24 of 35 remaining) [2023-11-26 11:51:11,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (23 of 35 remaining) [2023-11-26 11:51:11,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (22 of 35 remaining) [2023-11-26 11:51:11,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (21 of 35 remaining) [2023-11-26 11:51:11,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 35 remaining) [2023-11-26 11:51:11,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 35 remaining) [2023-11-26 11:51:11,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 35 remaining) [2023-11-26 11:51:11,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 35 remaining) [2023-11-26 11:51:11,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 35 remaining) [2023-11-26 11:51:11,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 35 remaining) [2023-11-26 11:51:11,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 35 remaining) [2023-11-26 11:51:11,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (13 of 35 remaining) [2023-11-26 11:51:11,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (12 of 35 remaining) [2023-11-26 11:51:11,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (11 of 35 remaining) [2023-11-26 11:51:11,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (10 of 35 remaining) [2023-11-26 11:51:11,105 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (9 of 35 remaining) [2023-11-26 11:51:11,105 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (8 of 35 remaining) [2023-11-26 11:51:11,105 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (7 of 35 remaining) [2023-11-26 11:51:11,105 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (6 of 35 remaining) [2023-11-26 11:51:11,105 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (5 of 35 remaining) [2023-11-26 11:51:11,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 35 remaining) [2023-11-26 11:51:11,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (3 of 35 remaining) [2023-11-26 11:51:11,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (2 of 35 remaining) [2023-11-26 11:51:11,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (1 of 35 remaining) [2023-11-26 11:51:11,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (0 of 35 remaining) [2023-11-26 11:51:11,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 11:51:11,108 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:11,116 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 11:51:11,116 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:51:11,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:51:11 BasicIcfg [2023-11-26 11:51:11,123 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:51:11,123 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:51:11,124 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:51:11,124 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:51:11,124 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:05" (3/4) ... [2023-11-26 11:51:11,127 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:51:11,131 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-26 11:51:11,131 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-26 11:51:11,139 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-26 11:51:11,139 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 11:51:11,140 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 11:51:11,140 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:51:11,246 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:51:11,247 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:51:11,247 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:51:11,248 INFO L158 Benchmark]: Toolchain (without parser) took 6724.99ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 117.8MB in the beginning and 171.3MB in the end (delta: -53.6MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2023-11-26 11:51:11,249 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 151.0MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:51:11,249 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.56ms. Allocated memory is still 151.0MB. Free memory was 117.4MB in the beginning and 106.3MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:51:11,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.28ms. Allocated memory is still 151.0MB. Free memory was 106.3MB in the beginning and 104.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:51:11,250 INFO L158 Benchmark]: Boogie Preprocessor took 41.01ms. Allocated memory is still 151.0MB. Free memory was 104.6MB in the beginning and 102.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:51:11,250 INFO L158 Benchmark]: RCFGBuilder took 728.22ms. Allocated memory is still 151.0MB. Free memory was 102.9MB in the beginning and 86.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 11:51:11,251 INFO L158 Benchmark]: TraceAbstraction took 5401.17ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 85.3MB in the beginning and 176.6MB in the end (delta: -91.3MB). Peak memory consumption was 102.4MB. Max. memory is 16.1GB. [2023-11-26 11:51:11,251 INFO L158 Benchmark]: Witness Printer took 123.77ms. Allocated memory is still 220.2MB. Free memory was 176.6MB in the beginning and 171.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:51:11,256 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 151.0MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.56ms. Allocated memory is still 151.0MB. Free memory was 117.4MB in the beginning and 106.3MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.28ms. Allocated memory is still 151.0MB. Free memory was 106.3MB in the beginning and 104.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.01ms. Allocated memory is still 151.0MB. Free memory was 104.6MB in the beginning and 102.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 728.22ms. Allocated memory is still 151.0MB. Free memory was 102.9MB in the beginning and 86.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5401.17ms. Allocated memory was 151.0MB in the beginning and 220.2MB in the end (delta: 69.2MB). Free memory was 85.3MB in the beginning and 176.6MB in the end (delta: -91.3MB). Peak memory consumption was 102.4MB. Max. memory is 16.1GB. * Witness Printer took 123.77ms. Allocated memory is still 220.2MB. Free memory was 176.6MB in the beginning and 171.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 247 locations, 35 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.2s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 339 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 513 IncrementalHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 65 mSDtfsCounter, 513 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=296occurred in iteration=0, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 931 NumberOfCodeBlocks, 931 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 913 ConstructedInterpolants, 0 QuantifiedInterpolants, 1107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 19 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 11:51:11,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b632329a-1204-48e0-9b44-7bfeaffb1771/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE