./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000f88b-51d4-4a7c-8eea-0aeb057cc5ce/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000f88b-51d4-4a7c-8eea-0aeb057cc5ce/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000f88b-51d4-4a7c-8eea-0aeb057cc5ce/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000f88b-51d4-4a7c-8eea-0aeb057cc5ce/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000f88b-51d4-4a7c-8eea-0aeb057cc5ce/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000f88b-51d4-4a7c-8eea-0aeb057cc5ce/bin/uautomizer-verify-bycVGegfSx --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 9db11e263e78e3a6bd75c2a0c3dda64920ec857df2fbb1d0b7b1072a48f36a31 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:11:33,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:11:33,935 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000f88b-51d4-4a7c-8eea-0aeb057cc5ce/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:11:33,942 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:11:33,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:11:33,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:11:33,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:11:34,000 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:11:34,001 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:11:34,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:11:34,009 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:11:34,010 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:11:34,010 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:11:34,012 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:11:34,013 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:11:34,013 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:11:34,014 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:11:34,014 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:11:34,015 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:11:34,015 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:11:34,016 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:11:34,016 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:11:34,017 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:11:34,017 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:11:34,018 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:11:34,018 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:11:34,019 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:11:34,020 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:11:34,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:11:34,021 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:11:34,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:34,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:11:34,023 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:11:34,023 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:11:34,024 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:11:34,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:11:34,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:11:34,024 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:11:34,025 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:11:34,025 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:11:34,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:11:34,026 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_d000f88b-51d4-4a7c-8eea-0aeb057cc5ce/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000f88b-51d4-4a7c-8eea-0aeb057cc5ce/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9db11e263e78e3a6bd75c2a0c3dda64920ec857df2fbb1d0b7b1072a48f36a31 [2023-11-21 22:11:34,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:11:34,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:11:34,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:11:34,377 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:11:34,378 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:11:34,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000f88b-51d4-4a7c-8eea-0aeb057cc5ce/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2023-11-21 22:11:37,519 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:11:37,889 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:11:37,890 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000f88b-51d4-4a7c-8eea-0aeb057cc5ce/sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2023-11-21 22:11:37,905 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000f88b-51d4-4a7c-8eea-0aeb057cc5ce/bin/uautomizer-verify-bycVGegfSx/data/c572e5995/6a5b87c40b284a76878dfca5d10a8de6/FLAG3da704347 [2023-11-21 22:11:37,925 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000f88b-51d4-4a7c-8eea-0aeb057cc5ce/bin/uautomizer-verify-bycVGegfSx/data/c572e5995/6a5b87c40b284a76878dfca5d10a8de6 [2023-11-21 22:11:37,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:11:37,933 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:11:37,936 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:37,937 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:11:37,942 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:11:37,945 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:37" (1/1) ... [2023-11-21 22:11:37,946 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335d4461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:37, skipping insertion in model container [2023-11-21 22:11:37,947 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:37" (1/1) ... [2023-11-21 22:11:37,992 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:11:38,275 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:38,287 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:11:38,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:38,366 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:11:38,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:38 WrapperNode [2023-11-21 22:11:38,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:38,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:38,368 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:11:38,369 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:11:38,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:38" (1/1) ... [2023-11-21 22:11:38,394 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:38" (1/1) ... [2023-11-21 22:11:38,455 INFO L138 Inliner]: procedures = 26, calls = 51, calls flagged for inlining = 19, calls inlined = 25, statements flattened = 561 [2023-11-21 22:11:38,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:38,456 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:11:38,456 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:11:38,457 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:11:38,467 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:38" (1/1) ... [2023-11-21 22:11:38,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:38" (1/1) ... [2023-11-21 22:11:38,478 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:38" (1/1) ... [2023-11-21 22:11:38,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:38" (1/1) ... [2023-11-21 22:11:38,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:38" (1/1) ... [2023-11-21 22:11:38,518 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:38" (1/1) ... [2023-11-21 22:11:38,522 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:38" (1/1) ... [2023-11-21 22:11:38,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:38" (1/1) ... [2023-11-21 22:11:38,534 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:11:38,535 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:11:38,535 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:11:38,535 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:11:38,536 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:38" (1/1) ... [2023-11-21 22:11:38,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:38,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000f88b-51d4-4a7c-8eea-0aeb057cc5ce/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:38,572 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000f88b-51d4-4a7c-8eea-0aeb057cc5ce/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:11:38,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d000f88b-51d4-4a7c-8eea-0aeb057cc5ce/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:11:38,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:11:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:11:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:11:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:11:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 22:11:38,632 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 22:11:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 22:11:38,633 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 22:11:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:11:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:11:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:11:38,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:11:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:11:38,636 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:11:38,854 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:11:38,858 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:11:39,928 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:11:39,969 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:11:39,969 INFO L308 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-21 22:11:39,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:39 BoogieIcfgContainer [2023-11-21 22:11:39,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:11:39,983 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:11:39,983 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:11:39,987 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:11:39,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:11:37" (1/3) ... [2023-11-21 22:11:39,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d940c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:39, skipping insertion in model container [2023-11-21 22:11:39,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:38" (2/3) ... [2023-11-21 22:11:39,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d940c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:39, skipping insertion in model container [2023-11-21 22:11:39,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:39" (3/3) ... [2023-11-21 22:11:39,992 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-symm.wvr.c [2023-11-21 22:11:40,004 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:11:40,018 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:11:40,018 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 80 error locations. [2023-11-21 22:11:40,018 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:11:40,276 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 22:11:40,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 709 places, 735 transitions, 1484 flow [2023-11-21 22:11:40,837 INFO L124 PetriNetUnfolderBase]: 33/733 cut-off events. [2023-11-21 22:11:40,838 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:11:40,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 733 events. 33/733 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1168 event pairs, 0 based on Foata normal form. 0/620 useless extension candidates. Maximal degree in co-relation 519. Up to 2 conditions per place. [2023-11-21 22:11:40,858 INFO L82 GeneralOperation]: Start removeDead. Operand has 709 places, 735 transitions, 1484 flow [2023-11-21 22:11:40,879 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 683 places, 707 transitions, 1426 flow [2023-11-21 22:11:40,898 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:11:40,907 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;@41b19ac2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:11:40,908 INFO L358 AbstractCegarLoop]: Starting to check reachability of 132 error locations. [2023-11-21 22:11:40,914 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:11:40,914 INFO L124 PetriNetUnfolderBase]: 0/27 cut-off events. [2023-11-21 22:11:40,915 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:11:40,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:40,916 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] [2023-11-21 22:11:40,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:11:40,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:40,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1037322181, now seen corresponding path program 1 times [2023-11-21 22:11:40,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:40,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694630902] [2023-11-21 22:11:40,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:40,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:41,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:41,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:41,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694630902] [2023-11-21 22:11:41,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694630902] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:41,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:41,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:41,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715590461] [2023-11-21 22:11:41,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:41,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:41,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:41,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:41,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:41,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 693 out of 735 [2023-11-21 22:11:41,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 683 places, 707 transitions, 1426 flow. Second operand has 3 states, 3 states have (on average 694.3333333333334) internal successors, (2083), 3 states have internal predecessors, (2083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:41,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:41,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 693 of 735 [2023-11-21 22:11:41,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:41,903 INFO L124 PetriNetUnfolderBase]: 39/1317 cut-off events. [2023-11-21 22:11:41,904 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-21 22:11:41,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1385 conditions, 1317 events. 39/1317 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 5348 event pairs, 15 based on Foata normal form. 33/1122 useless extension candidates. Maximal degree in co-relation 956. Up to 48 conditions per place. [2023-11-21 22:11:41,924 INFO L140 encePairwiseOnDemand]: 713/735 looper letters, 17 selfloop transitions, 2 changer transitions 11/687 dead transitions. [2023-11-21 22:11:41,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 684 places, 687 transitions, 1424 flow [2023-11-21 22:11:41,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:41,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:41,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2118 transitions. [2023-11-21 22:11:41,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9605442176870749 [2023-11-21 22:11:41,950 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2118 transitions. [2023-11-21 22:11:41,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2118 transitions. [2023-11-21 22:11:41,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:41,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2118 transitions. [2023-11-21 22:11:41,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 706.0) internal successors, (2118), 3 states have internal predecessors, (2118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:41,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:41,983 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:41,985 INFO L175 Difference]: Start difference. First operand has 683 places, 707 transitions, 1426 flow. Second operand 3 states and 2118 transitions. [2023-11-21 22:11:41,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 684 places, 687 transitions, 1424 flow [2023-11-21 22:11:41,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 680 places, 687 transitions, 1416 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:11:42,009 INFO L231 Difference]: Finished difference. Result has 680 places, 676 transitions, 1360 flow [2023-11-21 22:11:42,013 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1378, PETRI_DIFFERENCE_MINUEND_PLACES=678, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=685, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1360, PETRI_PLACES=680, PETRI_TRANSITIONS=676} [2023-11-21 22:11:42,017 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -3 predicate places. [2023-11-21 22:11:42,017 INFO L495 AbstractCegarLoop]: Abstraction has has 680 places, 676 transitions, 1360 flow [2023-11-21 22:11:42,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 694.3333333333334) internal successors, (2083), 3 states have internal predecessors, (2083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:42,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:42,019 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] [2023-11-21 22:11:42,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:11:42,020 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:11:42,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:42,021 INFO L85 PathProgramCache]: Analyzing trace with hash -608275552, now seen corresponding path program 1 times [2023-11-21 22:11:42,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:42,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288776589] [2023-11-21 22:11:42,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:42,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:42,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:42,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:42,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288776589] [2023-11-21 22:11:42,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288776589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:42,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:42,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:42,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240928744] [2023-11-21 22:11:42,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:42,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:42,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:42,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:42,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:42,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 679 out of 735 [2023-11-21 22:11:42,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 680 places, 676 transitions, 1360 flow. Second operand has 3 states, 3 states have (on average 680.0) internal successors, (2040), 3 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:42,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:42,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 679 of 735 [2023-11-21 22:11:42,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:42,835 INFO L124 PetriNetUnfolderBase]: 97/2084 cut-off events. [2023-11-21 22:11:42,835 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-21 22:11:42,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2223 conditions, 2084 events. 97/2084 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 12064 event pairs, 48 based on Foata normal form. 0/1744 useless extension candidates. Maximal degree in co-relation 2187. Up to 125 conditions per place. [2023-11-21 22:11:42,859 INFO L140 encePairwiseOnDemand]: 724/735 looper letters, 24 selfloop transitions, 1 changer transitions 0/666 dead transitions. [2023-11-21 22:11:42,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 666 transitions, 1390 flow [2023-11-21 22:11:42,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:42,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:42,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2072 transitions. [2023-11-21 22:11:42,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9396825396825397 [2023-11-21 22:11:42,867 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2072 transitions. [2023-11-21 22:11:42,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2072 transitions. [2023-11-21 22:11:42,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:42,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2072 transitions. [2023-11-21 22:11:42,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 690.6666666666666) internal successors, (2072), 3 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:42,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:42,886 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:42,887 INFO L175 Difference]: Start difference. First operand has 680 places, 676 transitions, 1360 flow. Second operand 3 states and 2072 transitions. [2023-11-21 22:11:42,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 661 places, 666 transitions, 1390 flow [2023-11-21 22:11:42,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 659 places, 666 transitions, 1386 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:42,905 INFO L231 Difference]: Finished difference. Result has 659 places, 666 transitions, 1338 flow [2023-11-21 22:11:42,906 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=657, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=666, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=665, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1338, PETRI_PLACES=659, PETRI_TRANSITIONS=666} [2023-11-21 22:11:42,910 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -24 predicate places. [2023-11-21 22:11:42,910 INFO L495 AbstractCegarLoop]: Abstraction has has 659 places, 666 transitions, 1338 flow [2023-11-21 22:11:42,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 680.0) internal successors, (2040), 3 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:42,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:42,913 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] [2023-11-21 22:11:42,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:11:42,917 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:11:42,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:42,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1029899998, now seen corresponding path program 1 times [2023-11-21 22:11:42,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:42,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205321447] [2023-11-21 22:11:42,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:42,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:43,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:43,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:43,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205321447] [2023-11-21 22:11:43,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205321447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:43,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:43,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:43,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143443421] [2023-11-21 22:11:43,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:43,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:43,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:43,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:43,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:43,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 693 out of 735 [2023-11-21 22:11:43,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 659 places, 666 transitions, 1338 flow. Second operand has 3 states, 3 states have (on average 694.3333333333334) internal successors, (2083), 3 states have internal predecessors, (2083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:43,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:43,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 693 of 735 [2023-11-21 22:11:43,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:43,452 INFO L124 PetriNetUnfolderBase]: 39/1298 cut-off events. [2023-11-21 22:11:43,453 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2023-11-21 22:11:43,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1356 conditions, 1298 events. 39/1298 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5129 event pairs, 15 based on Foata normal form. 0/1097 useless extension candidates. Maximal degree in co-relation 1320. Up to 48 conditions per place. [2023-11-21 22:11:43,468 INFO L140 encePairwiseOnDemand]: 732/735 looper letters, 17 selfloop transitions, 2 changer transitions 0/665 dead transitions. [2023-11-21 22:11:43,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 660 places, 665 transitions, 1374 flow [2023-11-21 22:11:43,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:43,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:43,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2099 transitions. [2023-11-21 22:11:43,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9519274376417234 [2023-11-21 22:11:43,476 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2099 transitions. [2023-11-21 22:11:43,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2099 transitions. [2023-11-21 22:11:43,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:43,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2099 transitions. [2023-11-21 22:11:43,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 699.6666666666666) internal successors, (2099), 3 states have internal predecessors, (2099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:43,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:43,493 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:43,493 INFO L175 Difference]: Start difference. First operand has 659 places, 666 transitions, 1338 flow. Second operand 3 states and 2099 transitions. [2023-11-21 22:11:43,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 660 places, 665 transitions, 1374 flow [2023-11-21 22:11:43,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 659 places, 665 transitions, 1373 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:11:43,514 INFO L231 Difference]: Finished difference. Result has 659 places, 665 transitions, 1339 flow [2023-11-21 22:11:43,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1335, PETRI_DIFFERENCE_MINUEND_PLACES=657, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=665, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=663, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1339, PETRI_PLACES=659, PETRI_TRANSITIONS=665} [2023-11-21 22:11:43,517 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -24 predicate places. [2023-11-21 22:11:43,517 INFO L495 AbstractCegarLoop]: Abstraction has has 659 places, 665 transitions, 1339 flow [2023-11-21 22:11:43,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 694.3333333333334) internal successors, (2083), 3 states have internal predecessors, (2083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:43,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:43,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:43,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:11:43,520 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:11:43,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:43,522 INFO L85 PathProgramCache]: Analyzing trace with hash -842945145, now seen corresponding path program 1 times [2023-11-21 22:11:43,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:43,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602479062] [2023-11-21 22:11:43,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:43,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:43,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:43,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:43,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602479062] [2023-11-21 22:11:43,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602479062] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:43,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:43,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:43,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097219009] [2023-11-21 22:11:43,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:43,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:43,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:43,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:43,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:43,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 679 out of 735 [2023-11-21 22:11:43,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 659 places, 665 transitions, 1339 flow. Second operand has 3 states, 3 states have (on average 680.0) internal successors, (2040), 3 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:43,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:43,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 679 of 735 [2023-11-21 22:11:43,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:44,230 INFO L124 PetriNetUnfolderBase]: 98/2072 cut-off events. [2023-11-21 22:11:44,231 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-21 22:11:44,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2214 conditions, 2072 events. 98/2072 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 11751 event pairs, 48 based on Foata normal form. 0/1765 useless extension candidates. Maximal degree in co-relation 2179. Up to 127 conditions per place. [2023-11-21 22:11:44,257 INFO L140 encePairwiseOnDemand]: 724/735 looper letters, 24 selfloop transitions, 1 changer transitions 0/655 dead transitions. [2023-11-21 22:11:44,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 651 places, 655 transitions, 1369 flow [2023-11-21 22:11:44,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:44,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:44,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2072 transitions. [2023-11-21 22:11:44,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9396825396825397 [2023-11-21 22:11:44,267 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2072 transitions. [2023-11-21 22:11:44,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2072 transitions. [2023-11-21 22:11:44,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:44,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2072 transitions. [2023-11-21 22:11:44,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 690.6666666666666) internal successors, (2072), 3 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:44,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:44,289 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:44,289 INFO L175 Difference]: Start difference. First operand has 659 places, 665 transitions, 1339 flow. Second operand 3 states and 2072 transitions. [2023-11-21 22:11:44,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 651 places, 655 transitions, 1369 flow [2023-11-21 22:11:44,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 649 places, 655 transitions, 1365 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:44,309 INFO L231 Difference]: Finished difference. Result has 649 places, 655 transitions, 1317 flow [2023-11-21 22:11:44,311 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1315, PETRI_DIFFERENCE_MINUEND_PLACES=647, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=655, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=654, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1317, PETRI_PLACES=649, PETRI_TRANSITIONS=655} [2023-11-21 22:11:44,312 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -34 predicate places. [2023-11-21 22:11:44,313 INFO L495 AbstractCegarLoop]: Abstraction has has 649 places, 655 transitions, 1317 flow [2023-11-21 22:11:44,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 680.0) internal successors, (2040), 3 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:44,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:44,315 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:44,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:11:44,316 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:11:44,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:44,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1392094044, now seen corresponding path program 1 times [2023-11-21 22:11:44,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:44,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759174724] [2023-11-21 22:11:44,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:44,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:44,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:44,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:44,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759174724] [2023-11-21 22:11:44,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759174724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:44,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:44,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:44,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148892160] [2023-11-21 22:11:44,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:44,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:44,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:44,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:44,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:44,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 735 [2023-11-21 22:11:44,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 655 transitions, 1317 flow. Second operand has 3 states, 3 states have (on average 701.3333333333334) internal successors, (2104), 3 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:44,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:44,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 735 [2023-11-21 22:11:44,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:44,657 INFO L124 PetriNetUnfolderBase]: 16/810 cut-off events. [2023-11-21 22:11:44,657 INFO L125 PetriNetUnfolderBase]: For 2/3 co-relation queries the response was YES. [2023-11-21 22:11:44,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 832 conditions, 810 events. 16/810 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1506 event pairs, 1 based on Foata normal form. 0/712 useless extension candidates. Maximal degree in co-relation 796. Up to 13 conditions per place. [2023-11-21 22:11:44,670 INFO L140 encePairwiseOnDemand]: 732/735 looper letters, 10 selfloop transitions, 2 changer transitions 0/654 dead transitions. [2023-11-21 22:11:44,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 650 places, 654 transitions, 1339 flow [2023-11-21 22:11:44,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:44,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:44,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2113 transitions. [2023-11-21 22:11:44,679 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9582766439909297 [2023-11-21 22:11:44,679 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2113 transitions. [2023-11-21 22:11:44,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2113 transitions. [2023-11-21 22:11:44,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:44,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2113 transitions. [2023-11-21 22:11:44,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 704.3333333333334) internal successors, (2113), 3 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:44,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:44,702 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:44,703 INFO L175 Difference]: Start difference. First operand has 649 places, 655 transitions, 1317 flow. Second operand 3 states and 2113 transitions. [2023-11-21 22:11:44,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 650 places, 654 transitions, 1339 flow [2023-11-21 22:11:44,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 649 places, 654 transitions, 1338 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:11:44,722 INFO L231 Difference]: Finished difference. Result has 649 places, 654 transitions, 1318 flow [2023-11-21 22:11:44,724 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1314, PETRI_DIFFERENCE_MINUEND_PLACES=647, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=654, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1318, PETRI_PLACES=649, PETRI_TRANSITIONS=654} [2023-11-21 22:11:44,725 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -34 predicate places. [2023-11-21 22:11:44,726 INFO L495 AbstractCegarLoop]: Abstraction has has 649 places, 654 transitions, 1318 flow [2023-11-21 22:11:44,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 701.3333333333334) internal successors, (2104), 3 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:44,729 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:44,729 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] [2023-11-21 22:11:44,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:11:44,730 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:11:44,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:44,730 INFO L85 PathProgramCache]: Analyzing trace with hash -440993159, now seen corresponding path program 1 times [2023-11-21 22:11:44,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:44,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280348013] [2023-11-21 22:11:44,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:44,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:44,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:44,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:44,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280348013] [2023-11-21 22:11:44,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280348013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:44,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:44,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:44,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532401268] [2023-11-21 22:11:44,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:44,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:44,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:44,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:44,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:44,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 735 [2023-11-21 22:11:44,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 654 transitions, 1318 flow. Second operand has 3 states, 3 states have (on average 701.3333333333334) internal successors, (2104), 3 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:44,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:44,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 735 [2023-11-21 22:11:44,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:45,152 INFO L124 PetriNetUnfolderBase]: 24/1121 cut-off events. [2023-11-21 22:11:45,152 INFO L125 PetriNetUnfolderBase]: For 2/4 co-relation queries the response was YES. [2023-11-21 22:11:45,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1151 conditions, 1121 events. 24/1121 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3654 event pairs, 3 based on Foata normal form. 0/973 useless extension candidates. Maximal degree in co-relation 1115. Up to 17 conditions per place. [2023-11-21 22:11:45,174 INFO L140 encePairwiseOnDemand]: 732/735 looper letters, 10 selfloop transitions, 2 changer transitions 0/653 dead transitions. [2023-11-21 22:11:45,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 650 places, 653 transitions, 1340 flow [2023-11-21 22:11:45,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:45,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:45,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2113 transitions. [2023-11-21 22:11:45,183 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9582766439909297 [2023-11-21 22:11:45,183 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2113 transitions. [2023-11-21 22:11:45,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2113 transitions. [2023-11-21 22:11:45,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:45,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2113 transitions. [2023-11-21 22:11:45,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 704.3333333333334) internal successors, (2113), 3 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:45,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:45,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:45,211 INFO L175 Difference]: Start difference. First operand has 649 places, 654 transitions, 1318 flow. Second operand 3 states and 2113 transitions. [2023-11-21 22:11:45,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 650 places, 653 transitions, 1340 flow [2023-11-21 22:11:45,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 648 places, 653 transitions, 1336 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:45,229 INFO L231 Difference]: Finished difference. Result has 648 places, 653 transitions, 1316 flow [2023-11-21 22:11:45,231 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1312, PETRI_DIFFERENCE_MINUEND_PLACES=646, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=653, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=651, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1316, PETRI_PLACES=648, PETRI_TRANSITIONS=653} [2023-11-21 22:11:45,234 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -35 predicate places. [2023-11-21 22:11:45,235 INFO L495 AbstractCegarLoop]: Abstraction has has 648 places, 653 transitions, 1316 flow [2023-11-21 22:11:45,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 701.3333333333334) internal successors, (2104), 3 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:45,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:45,236 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] [2023-11-21 22:11:45,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:11:45,237 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:11:45,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:45,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1378988637, now seen corresponding path program 1 times [2023-11-21 22:11:45,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:45,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067835161] [2023-11-21 22:11:45,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:45,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:45,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:45,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:45,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067835161] [2023-11-21 22:11:45,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067835161] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:45,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:45,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:45,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123025697] [2023-11-21 22:11:45,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:45,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:45,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:45,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:45,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:45,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 735 [2023-11-21 22:11:45,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 648 places, 653 transitions, 1316 flow. Second operand has 3 states, 3 states have (on average 701.3333333333334) internal successors, (2104), 3 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:45,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:45,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 735 [2023-11-21 22:11:45,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:45,640 INFO L124 PetriNetUnfolderBase]: 24/1120 cut-off events. [2023-11-21 22:11:45,640 INFO L125 PetriNetUnfolderBase]: For 2/4 co-relation queries the response was YES. [2023-11-21 22:11:45,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1150 conditions, 1120 events. 24/1120 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3630 event pairs, 3 based on Foata normal form. 0/973 useless extension candidates. Maximal degree in co-relation 1114. Up to 17 conditions per place. [2023-11-21 22:11:45,657 INFO L140 encePairwiseOnDemand]: 732/735 looper letters, 10 selfloop transitions, 2 changer transitions 0/652 dead transitions. [2023-11-21 22:11:45,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 649 places, 652 transitions, 1338 flow [2023-11-21 22:11:45,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:45,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:45,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2113 transitions. [2023-11-21 22:11:45,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9582766439909297 [2023-11-21 22:11:45,665 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2113 transitions. [2023-11-21 22:11:45,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2113 transitions. [2023-11-21 22:11:45,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:45,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2113 transitions. [2023-11-21 22:11:45,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 704.3333333333334) internal successors, (2113), 3 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:45,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:45,679 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:45,680 INFO L175 Difference]: Start difference. First operand has 648 places, 653 transitions, 1316 flow. Second operand 3 states and 2113 transitions. [2023-11-21 22:11:45,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 649 places, 652 transitions, 1338 flow [2023-11-21 22:11:45,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 647 places, 652 transitions, 1334 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:45,734 INFO L231 Difference]: Finished difference. Result has 647 places, 652 transitions, 1314 flow [2023-11-21 22:11:45,736 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1310, PETRI_DIFFERENCE_MINUEND_PLACES=645, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=652, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=650, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1314, PETRI_PLACES=647, PETRI_TRANSITIONS=652} [2023-11-21 22:11:45,737 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -36 predicate places. [2023-11-21 22:11:45,737 INFO L495 AbstractCegarLoop]: Abstraction has has 647 places, 652 transitions, 1314 flow [2023-11-21 22:11:45,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 701.3333333333334) internal successors, (2104), 3 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:45,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:45,738 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] [2023-11-21 22:11:45,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:11:45,738 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:11:45,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:45,739 INFO L85 PathProgramCache]: Analyzing trace with hash -2130178131, now seen corresponding path program 1 times [2023-11-21 22:11:45,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:45,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220362932] [2023-11-21 22:11:45,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:45,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:45,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:45,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:45,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220362932] [2023-11-21 22:11:45,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220362932] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:45,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:45,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:45,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315378299] [2023-11-21 22:11:45,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:45,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:45,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:45,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:45,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:45,885 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 735 [2023-11-21 22:11:45,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 647 places, 652 transitions, 1314 flow. Second operand has 3 states, 3 states have (on average 701.3333333333334) internal successors, (2104), 3 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:45,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:45,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 735 [2023-11-21 22:11:45,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:46,034 INFO L124 PetriNetUnfolderBase]: 13/666 cut-off events. [2023-11-21 22:11:46,035 INFO L125 PetriNetUnfolderBase]: For 3/4 co-relation queries the response was YES. [2023-11-21 22:11:46,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 666 events. 13/666 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1126 event pairs, 1 based on Foata normal form. 0/595 useless extension candidates. Maximal degree in co-relation 653. Up to 13 conditions per place. [2023-11-21 22:11:46,045 INFO L140 encePairwiseOnDemand]: 732/735 looper letters, 10 selfloop transitions, 2 changer transitions 0/651 dead transitions. [2023-11-21 22:11:46,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 648 places, 651 transitions, 1336 flow [2023-11-21 22:11:46,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:46,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:46,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2113 transitions. [2023-11-21 22:11:46,052 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9582766439909297 [2023-11-21 22:11:46,052 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2113 transitions. [2023-11-21 22:11:46,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2113 transitions. [2023-11-21 22:11:46,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:46,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2113 transitions. [2023-11-21 22:11:46,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 704.3333333333334) internal successors, (2113), 3 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,065 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,066 INFO L175 Difference]: Start difference. First operand has 647 places, 652 transitions, 1314 flow. Second operand 3 states and 2113 transitions. [2023-11-21 22:11:46,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 648 places, 651 transitions, 1336 flow [2023-11-21 22:11:46,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 646 places, 651 transitions, 1332 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:46,081 INFO L231 Difference]: Finished difference. Result has 646 places, 651 transitions, 1312 flow [2023-11-21 22:11:46,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1308, PETRI_DIFFERENCE_MINUEND_PLACES=644, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=651, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=649, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1312, PETRI_PLACES=646, PETRI_TRANSITIONS=651} [2023-11-21 22:11:46,083 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -37 predicate places. [2023-11-21 22:11:46,083 INFO L495 AbstractCegarLoop]: Abstraction has has 646 places, 651 transitions, 1312 flow [2023-11-21 22:11:46,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 701.3333333333334) internal successors, (2104), 3 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,084 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:46,085 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:46,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:11:46,085 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:11:46,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:46,086 INFO L85 PathProgramCache]: Analyzing trace with hash -282965587, now seen corresponding path program 1 times [2023-11-21 22:11:46,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:46,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416056878] [2023-11-21 22:11:46,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:46,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:46,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:46,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:46,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416056878] [2023-11-21 22:11:46,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416056878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:46,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:46,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:46,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506780223] [2023-11-21 22:11:46,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:46,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:46,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:46,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:46,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:46,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 735 [2023-11-21 22:11:46,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 646 places, 651 transitions, 1312 flow. Second operand has 3 states, 3 states have (on average 701.3333333333334) internal successors, (2104), 3 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:46,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 735 [2023-11-21 22:11:46,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:46,316 INFO L124 PetriNetUnfolderBase]: 18/783 cut-off events. [2023-11-21 22:11:46,316 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2023-11-21 22:11:46,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 783 events. 18/783 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1484 event pairs, 3 based on Foata normal form. 0/690 useless extension candidates. Maximal degree in co-relation 774. Up to 17 conditions per place. [2023-11-21 22:11:46,327 INFO L140 encePairwiseOnDemand]: 732/735 looper letters, 10 selfloop transitions, 2 changer transitions 0/650 dead transitions. [2023-11-21 22:11:46,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 647 places, 650 transitions, 1334 flow [2023-11-21 22:11:46,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:46,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:46,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2113 transitions. [2023-11-21 22:11:46,334 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9582766439909297 [2023-11-21 22:11:46,335 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2113 transitions. [2023-11-21 22:11:46,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2113 transitions. [2023-11-21 22:11:46,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:46,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2113 transitions. [2023-11-21 22:11:46,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 704.3333333333334) internal successors, (2113), 3 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,348 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,348 INFO L175 Difference]: Start difference. First operand has 646 places, 651 transitions, 1312 flow. Second operand 3 states and 2113 transitions. [2023-11-21 22:11:46,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 647 places, 650 transitions, 1334 flow [2023-11-21 22:11:46,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 650 transitions, 1330 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:46,363 INFO L231 Difference]: Finished difference. Result has 645 places, 650 transitions, 1310 flow [2023-11-21 22:11:46,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1306, PETRI_DIFFERENCE_MINUEND_PLACES=643, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=650, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=648, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1310, PETRI_PLACES=645, PETRI_TRANSITIONS=650} [2023-11-21 22:11:46,365 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -38 predicate places. [2023-11-21 22:11:46,366 INFO L495 AbstractCegarLoop]: Abstraction has has 645 places, 650 transitions, 1310 flow [2023-11-21 22:11:46,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 701.3333333333334) internal successors, (2104), 3 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:46,367 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] [2023-11-21 22:11:46,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:11:46,367 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:11:46,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:46,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1607081592, now seen corresponding path program 1 times [2023-11-21 22:11:46,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:46,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004377983] [2023-11-21 22:11:46,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:46,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:46,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:46,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004377983] [2023-11-21 22:11:46,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004377983] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:46,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:46,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:46,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267304633] [2023-11-21 22:11:46,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:46,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:46,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:46,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:46,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:46,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 735 [2023-11-21 22:11:46,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 645 places, 650 transitions, 1310 flow. Second operand has 3 states, 3 states have (on average 701.3333333333334) internal successors, (2104), 3 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:46,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 735 [2023-11-21 22:11:46,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:46,655 INFO L124 PetriNetUnfolderBase]: 18/763 cut-off events. [2023-11-21 22:11:46,655 INFO L125 PetriNetUnfolderBase]: For 5/6 co-relation queries the response was YES. [2023-11-21 22:11:46,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 790 conditions, 763 events. 18/763 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1451 event pairs, 3 based on Foata normal form. 0/674 useless extension candidates. Maximal degree in co-relation 754. Up to 17 conditions per place. [2023-11-21 22:11:46,667 INFO L140 encePairwiseOnDemand]: 732/735 looper letters, 10 selfloop transitions, 2 changer transitions 0/649 dead transitions. [2023-11-21 22:11:46,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 649 transitions, 1332 flow [2023-11-21 22:11:46,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:46,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:46,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2113 transitions. [2023-11-21 22:11:46,682 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9582766439909297 [2023-11-21 22:11:46,682 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2113 transitions. [2023-11-21 22:11:46,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2113 transitions. [2023-11-21 22:11:46,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:46,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2113 transitions. [2023-11-21 22:11:46,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 704.3333333333334) internal successors, (2113), 3 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,696 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,696 INFO L175 Difference]: Start difference. First operand has 645 places, 650 transitions, 1310 flow. Second operand 3 states and 2113 transitions. [2023-11-21 22:11:46,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 649 transitions, 1332 flow [2023-11-21 22:11:46,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 644 places, 649 transitions, 1328 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:46,712 INFO L231 Difference]: Finished difference. Result has 644 places, 649 transitions, 1308 flow [2023-11-21 22:11:46,715 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1304, PETRI_DIFFERENCE_MINUEND_PLACES=642, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=649, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=647, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1308, PETRI_PLACES=644, PETRI_TRANSITIONS=649} [2023-11-21 22:11:46,716 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -39 predicate places. [2023-11-21 22:11:46,717 INFO L495 AbstractCegarLoop]: Abstraction has has 644 places, 649 transitions, 1308 flow [2023-11-21 22:11:46,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 701.3333333333334) internal successors, (2104), 3 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,718 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:46,718 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:46,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:11:46,719 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:11:46,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:46,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1096881656, now seen corresponding path program 1 times [2023-11-21 22:11:46,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:46,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337612887] [2023-11-21 22:11:46,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:46,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:46,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:46,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:46,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337612887] [2023-11-21 22:11:46,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337612887] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:46,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:46,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:46,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818021007] [2023-11-21 22:11:46,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:46,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:46,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:46,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:46,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:46,864 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 699 out of 735 [2023-11-21 22:11:46,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 644 places, 649 transitions, 1308 flow. Second operand has 3 states, 3 states have (on average 700.3333333333334) internal successors, (2101), 3 states have internal predecessors, (2101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:46,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:46,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 699 of 735 [2023-11-21 22:11:46,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:47,101 INFO L124 PetriNetUnfolderBase]: 29/1106 cut-off events. [2023-11-21 22:11:47,101 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-21 22:11:47,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1146 conditions, 1106 events. 29/1106 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3828 event pairs, 8 based on Foata normal form. 0/963 useless extension candidates. Maximal degree in co-relation 1110. Up to 28 conditions per place. [2023-11-21 22:11:47,116 INFO L140 encePairwiseOnDemand]: 732/735 looper letters, 11 selfloop transitions, 2 changer transitions 0/648 dead transitions. [2023-11-21 22:11:47,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 645 places, 648 transitions, 1332 flow [2023-11-21 22:11:47,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:47,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:47,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2111 transitions. [2023-11-21 22:11:47,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9573696145124716 [2023-11-21 22:11:47,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2111 transitions. [2023-11-21 22:11:47,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2111 transitions. [2023-11-21 22:11:47,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:47,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2111 transitions. [2023-11-21 22:11:47,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 703.6666666666666) internal successors, (2111), 3 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:47,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:47,152 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:47,152 INFO L175 Difference]: Start difference. First operand has 644 places, 649 transitions, 1308 flow. Second operand 3 states and 2111 transitions. [2023-11-21 22:11:47,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 645 places, 648 transitions, 1332 flow [2023-11-21 22:11:47,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 643 places, 648 transitions, 1328 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:47,211 INFO L231 Difference]: Finished difference. Result has 643 places, 648 transitions, 1306 flow [2023-11-21 22:11:47,213 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1302, PETRI_DIFFERENCE_MINUEND_PLACES=641, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=648, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1306, PETRI_PLACES=643, PETRI_TRANSITIONS=648} [2023-11-21 22:11:47,213 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -40 predicate places. [2023-11-21 22:11:47,214 INFO L495 AbstractCegarLoop]: Abstraction has has 643 places, 648 transitions, 1306 flow [2023-11-21 22:11:47,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 700.3333333333334) internal successors, (2101), 3 states have internal predecessors, (2101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:47,215 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:47,215 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:47,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:11:47,215 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:11:47,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:47,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1726108628, now seen corresponding path program 1 times [2023-11-21 22:11:47,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:47,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432128030] [2023-11-21 22:11:47,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:47,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:48,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:48,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:48,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432128030] [2023-11-21 22:11:48,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432128030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:48,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:48,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:48,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646188153] [2023-11-21 22:11:48,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:48,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:48,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:48,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:48,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:48,574 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 636 out of 735 [2023-11-21 22:11:48,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 643 places, 648 transitions, 1306 flow. Second operand has 6 states, 6 states have (on average 637.5) internal successors, (3825), 6 states have internal predecessors, (3825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:48,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:48,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 636 of 735 [2023-11-21 22:11:48,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:53,635 INFO L124 PetriNetUnfolderBase]: 3466/19867 cut-off events. [2023-11-21 22:11:53,635 INFO L125 PetriNetUnfolderBase]: For 33/36 co-relation queries the response was YES. [2023-11-21 22:11:53,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25023 conditions, 19867 events. 3466/19867 cut-off events. For 33/36 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 227413 event pairs, 3168 based on Foata normal form. 0/17217 useless extension candidates. Maximal degree in co-relation 24988. Up to 5120 conditions per place. [2023-11-21 22:11:53,801 INFO L140 encePairwiseOnDemand]: 723/735 looper letters, 66 selfloop transitions, 10 changer transitions 0/646 dead transitions. [2023-11-21 22:11:53,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 646 transitions, 1454 flow [2023-11-21 22:11:53,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:11:53,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:11:53,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3894 transitions. [2023-11-21 22:11:53,813 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8829931972789116 [2023-11-21 22:11:53,813 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3894 transitions. [2023-11-21 22:11:53,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3894 transitions. [2023-11-21 22:11:53,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:53,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3894 transitions. [2023-11-21 22:11:53,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 649.0) internal successors, (3894), 6 states have internal predecessors, (3894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:53,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 735.0) internal successors, (5145), 7 states have internal predecessors, (5145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:53,840 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 735.0) internal successors, (5145), 7 states have internal predecessors, (5145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:53,841 INFO L175 Difference]: Start difference. First operand has 643 places, 648 transitions, 1306 flow. Second operand 6 states and 3894 transitions. [2023-11-21 22:11:53,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 646 transitions, 1454 flow [2023-11-21 22:11:53,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 644 places, 646 transitions, 1450 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:53,856 INFO L231 Difference]: Finished difference. Result has 644 places, 646 transitions, 1318 flow [2023-11-21 22:11:53,857 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1298, PETRI_DIFFERENCE_MINUEND_PLACES=639, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=646, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=636, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1318, PETRI_PLACES=644, PETRI_TRANSITIONS=646} [2023-11-21 22:11:53,858 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -39 predicate places. [2023-11-21 22:11:53,858 INFO L495 AbstractCegarLoop]: Abstraction has has 644 places, 646 transitions, 1318 flow [2023-11-21 22:11:53,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 637.5) internal successors, (3825), 6 states have internal predecessors, (3825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:53,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:53,860 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:53,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 22:11:53,860 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:11:53,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:53,861 INFO L85 PathProgramCache]: Analyzing trace with hash 547325939, now seen corresponding path program 1 times [2023-11-21 22:11:53,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:53,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395822180] [2023-11-21 22:11:53,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:53,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:53,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:53,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:53,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395822180] [2023-11-21 22:11:53,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395822180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:53,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:53,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:53,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999962685] [2023-11-21 22:11:53,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:53,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:53,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:53,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:53,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:53,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 699 out of 735 [2023-11-21 22:11:53,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 644 places, 646 transitions, 1318 flow. Second operand has 3 states, 3 states have (on average 700.3333333333334) internal successors, (2101), 3 states have internal predecessors, (2101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:53,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:53,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 699 of 735 [2023-11-21 22:11:53,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:54,188 INFO L124 PetriNetUnfolderBase]: 29/1107 cut-off events. [2023-11-21 22:11:54,188 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2023-11-21 22:11:54,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1155 conditions, 1107 events. 29/1107 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3525 event pairs, 8 based on Foata normal form. 0/965 useless extension candidates. Maximal degree in co-relation 1122. Up to 28 conditions per place. [2023-11-21 22:11:54,200 INFO L140 encePairwiseOnDemand]: 732/735 looper letters, 11 selfloop transitions, 2 changer transitions 0/645 dead transitions. [2023-11-21 22:11:54,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 645 places, 645 transitions, 1342 flow [2023-11-21 22:11:54,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:54,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:54,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2111 transitions. [2023-11-21 22:11:54,208 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9573696145124716 [2023-11-21 22:11:54,208 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2111 transitions. [2023-11-21 22:11:54,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2111 transitions. [2023-11-21 22:11:54,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:54,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2111 transitions. [2023-11-21 22:11:54,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 703.6666666666666) internal successors, (2111), 3 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:54,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:54,222 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:54,222 INFO L175 Difference]: Start difference. First operand has 644 places, 646 transitions, 1318 flow. Second operand 3 states and 2111 transitions. [2023-11-21 22:11:54,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 645 places, 645 transitions, 1342 flow [2023-11-21 22:11:54,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 640 places, 645 transitions, 1322 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:11:54,237 INFO L231 Difference]: Finished difference. Result has 640 places, 645 transitions, 1300 flow [2023-11-21 22:11:54,239 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1296, PETRI_DIFFERENCE_MINUEND_PLACES=638, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=643, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1300, PETRI_PLACES=640, PETRI_TRANSITIONS=645} [2023-11-21 22:11:54,240 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -43 predicate places. [2023-11-21 22:11:54,240 INFO L495 AbstractCegarLoop]: Abstraction has has 640 places, 645 transitions, 1300 flow [2023-11-21 22:11:54,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 700.3333333333334) internal successors, (2101), 3 states have internal predecessors, (2101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:54,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:54,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:54,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 22:11:54,242 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:11:54,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:54,242 INFO L85 PathProgramCache]: Analyzing trace with hash -288778113, now seen corresponding path program 1 times [2023-11-21 22:11:54,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:54,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150951175] [2023-11-21 22:11:54,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:54,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:54,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:54,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:54,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150951175] [2023-11-21 22:11:54,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150951175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:54,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:54,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:54,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715730034] [2023-11-21 22:11:54,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:54,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:54,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:54,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:54,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:54,897 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 636 out of 735 [2023-11-21 22:11:54,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 640 places, 645 transitions, 1300 flow. Second operand has 3 states, 3 states have (on average 638.0) internal successors, (1914), 3 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:54,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:54,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 636 of 735 [2023-11-21 22:11:54,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:59,474 INFO L124 PetriNetUnfolderBase]: 3466/19864 cut-off events. [2023-11-21 22:11:59,474 INFO L125 PetriNetUnfolderBase]: For 33/36 co-relation queries the response was YES. [2023-11-21 22:11:59,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25020 conditions, 19864 events. 3466/19864 cut-off events. For 33/36 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 227367 event pairs, 3168 based on Foata normal form. 0/17217 useless extension candidates. Maximal degree in co-relation 24985. Up to 5126 conditions per place. [2023-11-21 22:11:59,613 INFO L140 encePairwiseOnDemand]: 729/735 looper letters, 72 selfloop transitions, 4 changer transitions 0/643 dead transitions. [2023-11-21 22:11:59,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 640 places, 643 transitions, 1448 flow [2023-11-21 22:11:59,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:11:59,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:11:59,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1986 transitions. [2023-11-21 22:11:59,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9006802721088435 [2023-11-21 22:11:59,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1986 transitions. [2023-11-21 22:11:59,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1986 transitions. [2023-11-21 22:11:59,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:59,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1986 transitions. [2023-11-21 22:11:59,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 662.0) internal successors, (1986), 3 states have internal predecessors, (1986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:59,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:59,637 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:59,637 INFO L175 Difference]: Start difference. First operand has 640 places, 645 transitions, 1300 flow. Second operand 3 states and 1986 transitions. [2023-11-21 22:11:59,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 640 places, 643 transitions, 1448 flow [2023-11-21 22:11:59,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 638 places, 643 transitions, 1444 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:59,653 INFO L231 Difference]: Finished difference. Result has 638 places, 643 transitions, 1300 flow [2023-11-21 22:11:59,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1292, PETRI_DIFFERENCE_MINUEND_PLACES=636, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=643, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1300, PETRI_PLACES=638, PETRI_TRANSITIONS=643} [2023-11-21 22:11:59,655 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -45 predicate places. [2023-11-21 22:11:59,656 INFO L495 AbstractCegarLoop]: Abstraction has has 638 places, 643 transitions, 1300 flow [2023-11-21 22:11:59,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 638.0) internal successors, (1914), 3 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:59,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:59,657 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:59,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 22:11:59,657 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:11:59,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:59,658 INFO L85 PathProgramCache]: Analyzing trace with hash -119903767, now seen corresponding path program 1 times [2023-11-21 22:11:59,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:59,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694780278] [2023-11-21 22:11:59,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:59,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:59,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:59,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:59,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694780278] [2023-11-21 22:11:59,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694780278] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:59,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:59,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:11:59,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191544624] [2023-11-21 22:11:59,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:59,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:11:59,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:59,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:11:59,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:11:59,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 701 out of 735 [2023-11-21 22:11:59,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 638 places, 643 transitions, 1300 flow. Second operand has 3 states, 3 states have (on average 702.3333333333334) internal successors, (2107), 3 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:11:59,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:59,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 701 of 735 [2023-11-21 22:11:59,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:00,022 INFO L124 PetriNetUnfolderBase]: 18/809 cut-off events. [2023-11-21 22:12:00,022 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-21 22:12:00,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 838 conditions, 809 events. 18/809 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1905 event pairs, 3 based on Foata normal form. 0/721 useless extension candidates. Maximal degree in co-relation 817. Up to 16 conditions per place. [2023-11-21 22:12:00,032 INFO L140 encePairwiseOnDemand]: 732/735 looper letters, 9 selfloop transitions, 2 changer transitions 0/642 dead transitions. [2023-11-21 22:12:00,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 639 places, 642 transitions, 1320 flow [2023-11-21 22:12:00,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:00,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:12:00,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2115 transitions. [2023-11-21 22:12:00,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9591836734693877 [2023-11-21 22:12:00,040 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2115 transitions. [2023-11-21 22:12:00,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2115 transitions. [2023-11-21 22:12:00,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:00,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2115 transitions. [2023-11-21 22:12:00,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 705.0) internal successors, (2115), 3 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,057 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,057 INFO L175 Difference]: Start difference. First operand has 638 places, 643 transitions, 1300 flow. Second operand 3 states and 2115 transitions. [2023-11-21 22:12:00,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 639 places, 642 transitions, 1320 flow [2023-11-21 22:12:00,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 637 places, 642 transitions, 1312 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:12:00,072 INFO L231 Difference]: Finished difference. Result has 637 places, 642 transitions, 1294 flow [2023-11-21 22:12:00,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1290, PETRI_DIFFERENCE_MINUEND_PLACES=635, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=642, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1294, PETRI_PLACES=637, PETRI_TRANSITIONS=642} [2023-11-21 22:12:00,076 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -46 predicate places. [2023-11-21 22:12:00,076 INFO L495 AbstractCegarLoop]: Abstraction has has 637 places, 642 transitions, 1294 flow [2023-11-21 22:12:00,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 702.3333333333334) internal successors, (2107), 3 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,077 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:00,077 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:00,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 22:12:00,078 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:12:00,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:00,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2090331862, now seen corresponding path program 1 times [2023-11-21 22:12:00,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:00,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751061925] [2023-11-21 22:12:00,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:00,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:00,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:00,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:00,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:00,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751061925] [2023-11-21 22:12:00,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751061925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:00,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:00,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:00,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370037229] [2023-11-21 22:12:00,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:00,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:00,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:00,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:00,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:00,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 701 out of 735 [2023-11-21 22:12:00,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 637 places, 642 transitions, 1294 flow. Second operand has 3 states, 3 states have (on average 702.3333333333334) internal successors, (2107), 3 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:00,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 701 of 735 [2023-11-21 22:12:00,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:00,386 INFO L124 PetriNetUnfolderBase]: 21/905 cut-off events. [2023-11-21 22:12:00,387 INFO L125 PetriNetUnfolderBase]: For 3/4 co-relation queries the response was YES. [2023-11-21 22:12:00,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 932 conditions, 905 events. 21/905 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2142 event pairs, 3 based on Foata normal form. 0/800 useless extension candidates. Maximal degree in co-relation 896. Up to 16 conditions per place. [2023-11-21 22:12:00,399 INFO L140 encePairwiseOnDemand]: 732/735 looper letters, 9 selfloop transitions, 2 changer transitions 0/641 dead transitions. [2023-11-21 22:12:00,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 638 places, 641 transitions, 1314 flow [2023-11-21 22:12:00,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:00,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:12:00,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2115 transitions. [2023-11-21 22:12:00,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9591836734693877 [2023-11-21 22:12:00,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2115 transitions. [2023-11-21 22:12:00,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2115 transitions. [2023-11-21 22:12:00,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:00,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2115 transitions. [2023-11-21 22:12:00,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 705.0) internal successors, (2115), 3 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,421 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,422 INFO L175 Difference]: Start difference. First operand has 637 places, 642 transitions, 1294 flow. Second operand 3 states and 2115 transitions. [2023-11-21 22:12:00,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 638 places, 641 transitions, 1314 flow [2023-11-21 22:12:00,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 636 places, 641 transitions, 1310 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:12:00,439 INFO L231 Difference]: Finished difference. Result has 636 places, 641 transitions, 1292 flow [2023-11-21 22:12:00,440 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1288, PETRI_DIFFERENCE_MINUEND_PLACES=634, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=641, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1292, PETRI_PLACES=636, PETRI_TRANSITIONS=641} [2023-11-21 22:12:00,441 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -47 predicate places. [2023-11-21 22:12:00,441 INFO L495 AbstractCegarLoop]: Abstraction has has 636 places, 641 transitions, 1292 flow [2023-11-21 22:12:00,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 702.3333333333334) internal successors, (2107), 3 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:00,445 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:00,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 22:12:00,445 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:12:00,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:00,446 INFO L85 PathProgramCache]: Analyzing trace with hash -469335129, now seen corresponding path program 1 times [2023-11-21 22:12:00,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:00,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419043849] [2023-11-21 22:12:00,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:00,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:00,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:00,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:00,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419043849] [2023-11-21 22:12:00,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419043849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:00,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:00,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:00,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585289963] [2023-11-21 22:12:00,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:00,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:00,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:00,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:00,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:00,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 697 out of 735 [2023-11-21 22:12:00,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 636 places, 641 transitions, 1292 flow. Second operand has 3 states, 3 states have (on average 698.3333333333334) internal successors, (2095), 3 states have internal predecessors, (2095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:00,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:00,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 697 of 735 [2023-11-21 22:12:00,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:01,150 INFO L124 PetriNetUnfolderBase]: 57/1651 cut-off events. [2023-11-21 22:12:01,150 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-11-21 22:12:01,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1728 conditions, 1651 events. 57/1651 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 7830 event pairs, 19 based on Foata normal form. 0/1445 useless extension candidates. Maximal degree in co-relation 1693. Up to 61 conditions per place. [2023-11-21 22:12:01,165 INFO L140 encePairwiseOnDemand]: 729/735 looper letters, 14 selfloop transitions, 2 changer transitions 0/640 dead transitions. [2023-11-21 22:12:01,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 634 places, 640 transitions, 1323 flow [2023-11-21 22:12:01,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:01,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:12:01,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2111 transitions. [2023-11-21 22:12:01,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9573696145124716 [2023-11-21 22:12:01,175 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2111 transitions. [2023-11-21 22:12:01,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2111 transitions. [2023-11-21 22:12:01,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:01,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2111 transitions. [2023-11-21 22:12:01,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 703.6666666666666) internal successors, (2111), 3 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:01,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:01,191 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:01,191 INFO L175 Difference]: Start difference. First operand has 636 places, 641 transitions, 1292 flow. Second operand 3 states and 2111 transitions. [2023-11-21 22:12:01,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 634 places, 640 transitions, 1323 flow [2023-11-21 22:12:01,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 632 places, 640 transitions, 1319 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:12:01,211 INFO L231 Difference]: Finished difference. Result has 633 places, 639 transitions, 1294 flow [2023-11-21 22:12:01,212 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1280, PETRI_DIFFERENCE_MINUEND_PLACES=630, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=637, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=635, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1294, PETRI_PLACES=633, PETRI_TRANSITIONS=639} [2023-11-21 22:12:01,213 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -50 predicate places. [2023-11-21 22:12:01,213 INFO L495 AbstractCegarLoop]: Abstraction has has 633 places, 639 transitions, 1294 flow [2023-11-21 22:12:01,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 698.3333333333334) internal successors, (2095), 3 states have internal predecessors, (2095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:01,214 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:01,215 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:01,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-21 22:12:01,215 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:12:01,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:01,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1854173168, now seen corresponding path program 1 times [2023-11-21 22:12:01,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:01,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946317724] [2023-11-21 22:12:01,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:01,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:01,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:01,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:01,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946317724] [2023-11-21 22:12:01,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946317724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:01,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:01,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:01,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213054801] [2023-11-21 22:12:01,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:01,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:01,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:01,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:01,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:01,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 697 out of 735 [2023-11-21 22:12:01,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 633 places, 639 transitions, 1294 flow. Second operand has 3 states, 3 states have (on average 698.6666666666666) internal successors, (2096), 3 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:01,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:01,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 697 of 735 [2023-11-21 22:12:01,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:01,867 INFO L124 PetriNetUnfolderBase]: 57/1671 cut-off events. [2023-11-21 22:12:01,867 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-21 22:12:01,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1754 conditions, 1671 events. 57/1671 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 8213 event pairs, 15 based on Foata normal form. 0/1481 useless extension candidates. Maximal degree in co-relation 1719. Up to 62 conditions per place. [2023-11-21 22:12:01,889 INFO L140 encePairwiseOnDemand]: 729/735 looper letters, 14 selfloop transitions, 2 changer transitions 0/638 dead transitions. [2023-11-21 22:12:01,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 638 transitions, 1325 flow [2023-11-21 22:12:01,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:01,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:12:01,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2111 transitions. [2023-11-21 22:12:01,899 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9573696145124716 [2023-11-21 22:12:01,899 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2111 transitions. [2023-11-21 22:12:01,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2111 transitions. [2023-11-21 22:12:01,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:01,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2111 transitions. [2023-11-21 22:12:01,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 703.6666666666666) internal successors, (2111), 3 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:01,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:01,917 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:01,917 INFO L175 Difference]: Start difference. First operand has 633 places, 639 transitions, 1294 flow. Second operand 3 states and 2111 transitions. [2023-11-21 22:12:01,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 638 transitions, 1325 flow [2023-11-21 22:12:01,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 631 places, 638 transitions, 1325 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:12:01,939 INFO L231 Difference]: Finished difference. Result has 632 places, 637 transitions, 1300 flow [2023-11-21 22:12:01,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1286, PETRI_DIFFERENCE_MINUEND_PLACES=629, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=635, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=633, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1300, PETRI_PLACES=632, PETRI_TRANSITIONS=637} [2023-11-21 22:12:01,941 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -51 predicate places. [2023-11-21 22:12:01,941 INFO L495 AbstractCegarLoop]: Abstraction has has 632 places, 637 transitions, 1300 flow [2023-11-21 22:12:01,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 698.6666666666666) internal successors, (2096), 3 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:01,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:01,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:01,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-21 22:12:01,943 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:12:01,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:01,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1822125773, now seen corresponding path program 1 times [2023-11-21 22:12:01,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:01,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555602973] [2023-11-21 22:12:01,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:01,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:02,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:02,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:02,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555602973] [2023-11-21 22:12:02,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555602973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:02,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:02,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:12:02,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971603394] [2023-11-21 22:12:02,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:02,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:12:02,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:02,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:12:02,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:12:02,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 683 out of 735 [2023-11-21 22:12:02,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 632 places, 637 transitions, 1300 flow. Second operand has 7 states, 7 states have (on average 686.2857142857143) internal successors, (4804), 7 states have internal predecessors, (4804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:02,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:02,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 683 of 735 [2023-11-21 22:12:02,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:03,250 INFO L124 PetriNetUnfolderBase]: 38/1680 cut-off events. [2023-11-21 22:12:03,250 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2023-11-21 22:12:03,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1770 conditions, 1680 events. 38/1680 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 8097 event pairs, 0 based on Foata normal form. 1/1510 useless extension candidates. Maximal degree in co-relation 1731. Up to 29 conditions per place. [2023-11-21 22:12:03,272 INFO L140 encePairwiseOnDemand]: 725/735 looper letters, 45 selfloop transitions, 9 changer transitions 0/661 dead transitions. [2023-11-21 22:12:03,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 638 places, 661 transitions, 1460 flow [2023-11-21 22:12:03,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:12:03,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-21 22:12:03,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4836 transitions. [2023-11-21 22:12:03,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9399416909620991 [2023-11-21 22:12:03,285 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 4836 transitions. [2023-11-21 22:12:03,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 4836 transitions. [2023-11-21 22:12:03,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:03,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 4836 transitions. [2023-11-21 22:12:03,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 690.8571428571429) internal successors, (4836), 7 states have internal predecessors, (4836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:03,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 735.0) internal successors, (5880), 8 states have internal predecessors, (5880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:03,310 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 735.0) internal successors, (5880), 8 states have internal predecessors, (5880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:03,310 INFO L175 Difference]: Start difference. First operand has 632 places, 637 transitions, 1300 flow. Second operand 7 states and 4836 transitions. [2023-11-21 22:12:03,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 638 places, 661 transitions, 1460 flow [2023-11-21 22:12:03,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 638 places, 661 transitions, 1460 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:12:03,325 INFO L231 Difference]: Finished difference. Result has 642 places, 643 transitions, 1357 flow [2023-11-21 22:12:03,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1300, PETRI_DIFFERENCE_MINUEND_PLACES=632, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=637, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=628, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1357, PETRI_PLACES=642, PETRI_TRANSITIONS=643} [2023-11-21 22:12:03,326 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -41 predicate places. [2023-11-21 22:12:03,327 INFO L495 AbstractCegarLoop]: Abstraction has has 642 places, 643 transitions, 1357 flow [2023-11-21 22:12:03,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 686.2857142857143) internal successors, (4804), 7 states have internal predecessors, (4804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:03,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:03,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:03,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-21 22:12:03,329 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:12:03,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:03,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1685088089, now seen corresponding path program 1 times [2023-11-21 22:12:03,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:03,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348099597] [2023-11-21 22:12:03,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:03,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:04,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:04,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:04,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348099597] [2023-11-21 22:12:04,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348099597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:04,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:04,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:12:04,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491701710] [2023-11-21 22:12:04,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:04,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:12:04,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:04,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:12:04,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:12:05,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 672 out of 735 [2023-11-21 22:12:05,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 642 places, 643 transitions, 1357 flow. Second operand has 6 states, 6 states have (on average 673.6666666666666) internal successors, (4042), 6 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:05,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:05,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 672 of 735 [2023-11-21 22:12:05,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:06,718 INFO L124 PetriNetUnfolderBase]: 358/5302 cut-off events. [2023-11-21 22:12:06,718 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2023-11-21 22:12:06,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5998 conditions, 5302 events. 358/5302 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 45121 event pairs, 98 based on Foata normal form. 0/4680 useless extension candidates. Maximal degree in co-relation 5954. Up to 504 conditions per place. [2023-11-21 22:12:06,765 INFO L140 encePairwiseOnDemand]: 723/735 looper letters, 54 selfloop transitions, 8 changer transitions 0/663 dead transitions. [2023-11-21 22:12:06,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 643 places, 663 transitions, 1525 flow [2023-11-21 22:12:06,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:12:06,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:12:06,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4098 transitions. [2023-11-21 22:12:06,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9292517006802721 [2023-11-21 22:12:06,779 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4098 transitions. [2023-11-21 22:12:06,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4098 transitions. [2023-11-21 22:12:06,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:06,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4098 transitions. [2023-11-21 22:12:06,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 683.0) internal successors, (4098), 6 states have internal predecessors, (4098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:06,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 735.0) internal successors, (5145), 7 states have internal predecessors, (5145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:06,802 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 735.0) internal successors, (5145), 7 states have internal predecessors, (5145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:06,803 INFO L175 Difference]: Start difference. First operand has 642 places, 643 transitions, 1357 flow. Second operand 6 states and 4098 transitions. [2023-11-21 22:12:06,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 643 places, 663 transitions, 1525 flow [2023-11-21 22:12:06,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 641 places, 663 transitions, 1520 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:12:06,824 INFO L231 Difference]: Finished difference. Result has 645 places, 647 transitions, 1406 flow [2023-11-21 22:12:06,826 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1344, PETRI_DIFFERENCE_MINUEND_PLACES=636, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=639, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=631, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1406, PETRI_PLACES=645, PETRI_TRANSITIONS=647} [2023-11-21 22:12:06,826 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -38 predicate places. [2023-11-21 22:12:06,826 INFO L495 AbstractCegarLoop]: Abstraction has has 645 places, 647 transitions, 1406 flow [2023-11-21 22:12:06,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 673.6666666666666) internal successors, (4042), 6 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:06,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:06,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:06,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-21 22:12:06,829 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:12:06,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:06,830 INFO L85 PathProgramCache]: Analyzing trace with hash -493737762, now seen corresponding path program 1 times [2023-11-21 22:12:06,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:06,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248432302] [2023-11-21 22:12:06,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:06,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:08,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:08,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:08,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248432302] [2023-11-21 22:12:08,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248432302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:08,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:08,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:12:08,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330125810] [2023-11-21 22:12:08,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:08,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:12:08,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:08,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:12:08,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:12:08,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 690 out of 735 [2023-11-21 22:12:08,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 645 places, 647 transitions, 1406 flow. Second operand has 6 states, 6 states have (on average 691.5) internal successors, (4149), 6 states have internal predecessors, (4149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:08,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:08,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 690 of 735 [2023-11-21 22:12:08,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:09,536 INFO L124 PetriNetUnfolderBase]: 70/2580 cut-off events. [2023-11-21 22:12:09,536 INFO L125 PetriNetUnfolderBase]: For 21/49 co-relation queries the response was YES. [2023-11-21 22:12:09,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2778 conditions, 2580 events. 70/2580 cut-off events. For 21/49 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 17419 event pairs, 0 based on Foata normal form. 16/2312 useless extension candidates. Maximal degree in co-relation 2732. Up to 31 conditions per place. [2023-11-21 22:12:09,563 INFO L140 encePairwiseOnDemand]: 730/735 looper letters, 17 selfloop transitions, 4 changer transitions 0/646 dead transitions. [2023-11-21 22:12:09,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 649 places, 646 transitions, 1446 flow [2023-11-21 22:12:09,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:12:09,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:12:09,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4162 transitions. [2023-11-21 22:12:09,578 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.943764172335601 [2023-11-21 22:12:09,578 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4162 transitions. [2023-11-21 22:12:09,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4162 transitions. [2023-11-21 22:12:09,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:09,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4162 transitions. [2023-11-21 22:12:09,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 693.6666666666666) internal successors, (4162), 6 states have internal predecessors, (4162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:09,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 735.0) internal successors, (5145), 7 states have internal predecessors, (5145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:09,599 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 735.0) internal successors, (5145), 7 states have internal predecessors, (5145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:09,599 INFO L175 Difference]: Start difference. First operand has 645 places, 647 transitions, 1406 flow. Second operand 6 states and 4162 transitions. [2023-11-21 22:12:09,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 649 places, 646 transitions, 1446 flow [2023-11-21 22:12:09,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 649 places, 646 transitions, 1446 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:12:09,619 INFO L231 Difference]: Finished difference. Result has 649 places, 646 transitions, 1412 flow [2023-11-21 22:12:09,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1404, PETRI_DIFFERENCE_MINUEND_PLACES=644, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=646, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=642, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1412, PETRI_PLACES=649, PETRI_TRANSITIONS=646} [2023-11-21 22:12:09,621 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -34 predicate places. [2023-11-21 22:12:09,622 INFO L495 AbstractCegarLoop]: Abstraction has has 649 places, 646 transitions, 1412 flow [2023-11-21 22:12:09,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 691.5) internal successors, (4149), 6 states have internal predecessors, (4149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:09,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:09,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:09,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-21 22:12:09,625 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:12:09,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:09,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1607761052, now seen corresponding path program 1 times [2023-11-21 22:12:09,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:09,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894900518] [2023-11-21 22:12:09,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:09,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:09,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:09,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:09,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894900518] [2023-11-21 22:12:09,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894900518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:09,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:09,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:09,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632762547] [2023-11-21 22:12:09,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:09,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:09,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:09,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:09,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:09,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 702 out of 735 [2023-11-21 22:12:09,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 646 transitions, 1412 flow. Second operand has 3 states, 3 states have (on average 703.6666666666666) internal successors, (2111), 3 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:09,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:09,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 702 of 735 [2023-11-21 22:12:09,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:10,744 INFO L124 PetriNetUnfolderBase]: 94/3136 cut-off events. [2023-11-21 22:12:10,744 INFO L125 PetriNetUnfolderBase]: For 21/27 co-relation queries the response was YES. [2023-11-21 22:12:10,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3386 conditions, 3136 events. 94/3136 cut-off events. For 21/27 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 23635 event pairs, 8 based on Foata normal form. 0/2782 useless extension candidates. Maximal degree in co-relation 3341. Up to 40 conditions per place. [2023-11-21 22:12:10,783 INFO L140 encePairwiseOnDemand]: 732/735 looper letters, 10 selfloop transitions, 2 changer transitions 0/646 dead transitions. [2023-11-21 22:12:10,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 650 places, 646 transitions, 1437 flow [2023-11-21 22:12:10,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:10,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:12:10,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2119 transitions. [2023-11-21 22:12:10,791 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9609977324263038 [2023-11-21 22:12:10,791 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2119 transitions. [2023-11-21 22:12:10,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2119 transitions. [2023-11-21 22:12:10,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:10,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2119 transitions. [2023-11-21 22:12:10,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:10,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:10,802 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:10,802 INFO L175 Difference]: Start difference. First operand has 649 places, 646 transitions, 1412 flow. Second operand 3 states and 2119 transitions. [2023-11-21 22:12:10,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 650 places, 646 transitions, 1437 flow [2023-11-21 22:12:10,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 646 places, 646 transitions, 1430 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:12:10,822 INFO L231 Difference]: Finished difference. Result has 646 places, 645 transitions, 1407 flow [2023-11-21 22:12:10,824 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1403, PETRI_DIFFERENCE_MINUEND_PLACES=644, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=643, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1407, PETRI_PLACES=646, PETRI_TRANSITIONS=645} [2023-11-21 22:12:10,824 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -37 predicate places. [2023-11-21 22:12:10,825 INFO L495 AbstractCegarLoop]: Abstraction has has 646 places, 645 transitions, 1407 flow [2023-11-21 22:12:10,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 703.6666666666666) internal successors, (2111), 3 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:10,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:10,826 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:10,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-21 22:12:10,826 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:12:10,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:10,827 INFO L85 PathProgramCache]: Analyzing trace with hash 151715362, now seen corresponding path program 1 times [2023-11-21 22:12:10,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:10,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793113986] [2023-11-21 22:12:10,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:10,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:11,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:11,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:11,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793113986] [2023-11-21 22:12:11,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793113986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:11,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:11,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:12:11,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426542008] [2023-11-21 22:12:11,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:11,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:12:11,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:11,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:12:11,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:12:12,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 672 out of 735 [2023-11-21 22:12:12,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 646 places, 645 transitions, 1407 flow. Second operand has 6 states, 6 states have (on average 673.8333333333334) internal successors, (4043), 6 states have internal predecessors, (4043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:12,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:12,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 672 of 735 [2023-11-21 22:12:12,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:14,019 INFO L124 PetriNetUnfolderBase]: 380/6060 cut-off events. [2023-11-21 22:12:14,020 INFO L125 PetriNetUnfolderBase]: For 51/57 co-relation queries the response was YES. [2023-11-21 22:12:14,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6908 conditions, 6060 events. 380/6060 cut-off events. For 51/57 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 55217 event pairs, 96 based on Foata normal form. 0/5404 useless extension candidates. Maximal degree in co-relation 6861. Up to 540 conditions per place. [2023-11-21 22:12:14,065 INFO L140 encePairwiseOnDemand]: 723/735 looper letters, 54 selfloop transitions, 8 changer transitions 0/665 dead transitions. [2023-11-21 22:12:14,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 647 places, 665 transitions, 1575 flow [2023-11-21 22:12:14,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:12:14,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:12:14,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4098 transitions. [2023-11-21 22:12:14,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9292517006802721 [2023-11-21 22:12:14,075 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4098 transitions. [2023-11-21 22:12:14,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4098 transitions. [2023-11-21 22:12:14,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:14,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4098 transitions. [2023-11-21 22:12:14,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 683.0) internal successors, (4098), 6 states have internal predecessors, (4098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:14,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 735.0) internal successors, (5145), 7 states have internal predecessors, (5145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:14,091 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 735.0) internal successors, (5145), 7 states have internal predecessors, (5145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:14,091 INFO L175 Difference]: Start difference. First operand has 646 places, 645 transitions, 1407 flow. Second operand 6 states and 4098 transitions. [2023-11-21 22:12:14,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 647 places, 665 transitions, 1575 flow [2023-11-21 22:12:14,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 665 transitions, 1571 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:12:14,110 INFO L231 Difference]: Finished difference. Result has 649 places, 649 transitions, 1457 flow [2023-11-21 22:12:14,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1395, PETRI_DIFFERENCE_MINUEND_PLACES=640, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=641, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=633, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1457, PETRI_PLACES=649, PETRI_TRANSITIONS=649} [2023-11-21 22:12:14,112 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -34 predicate places. [2023-11-21 22:12:14,112 INFO L495 AbstractCegarLoop]: Abstraction has has 649 places, 649 transitions, 1457 flow [2023-11-21 22:12:14,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 673.8333333333334) internal successors, (4043), 6 states have internal predecessors, (4043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:14,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:14,114 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:14,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-21 22:12:14,114 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:12:14,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:14,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1955357989, now seen corresponding path program 1 times [2023-11-21 22:12:14,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:14,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666188891] [2023-11-21 22:12:14,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:14,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:14,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:14,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:14,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666188891] [2023-11-21 22:12:14,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666188891] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:14,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:14,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:14,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275121378] [2023-11-21 22:12:14,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:14,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:14,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:14,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:14,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:14,268 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 702 out of 735 [2023-11-21 22:12:14,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 649 transitions, 1457 flow. Second operand has 3 states, 3 states have (on average 704.0) internal successors, (2112), 3 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:14,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:14,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 702 of 735 [2023-11-21 22:12:14,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:15,165 INFO L124 PetriNetUnfolderBase]: 120/3794 cut-off events. [2023-11-21 22:12:15,165 INFO L125 PetriNetUnfolderBase]: For 51/65 co-relation queries the response was YES. [2023-11-21 22:12:15,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4125 conditions, 3794 events. 120/3794 cut-off events. For 51/65 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 30368 event pairs, 8 based on Foata normal form. 0/3368 useless extension candidates. Maximal degree in co-relation 4077. Up to 64 conditions per place. [2023-11-21 22:12:15,197 INFO L140 encePairwiseOnDemand]: 732/735 looper letters, 10 selfloop transitions, 2 changer transitions 0/649 dead transitions. [2023-11-21 22:12:15,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 650 places, 649 transitions, 1482 flow [2023-11-21 22:12:15,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:12:15,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2119 transitions. [2023-11-21 22:12:15,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9609977324263038 [2023-11-21 22:12:15,204 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2119 transitions. [2023-11-21 22:12:15,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2119 transitions. [2023-11-21 22:12:15,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:15,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2119 transitions. [2023-11-21 22:12:15,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:15,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:15,215 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:15,215 INFO L175 Difference]: Start difference. First operand has 649 places, 649 transitions, 1457 flow. Second operand 3 states and 2119 transitions. [2023-11-21 22:12:15,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 650 places, 649 transitions, 1482 flow [2023-11-21 22:12:15,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 650 places, 649 transitions, 1482 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:12:15,235 INFO L231 Difference]: Finished difference. Result has 650 places, 648 transitions, 1459 flow [2023-11-21 22:12:15,236 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1455, PETRI_DIFFERENCE_MINUEND_PLACES=648, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=648, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1459, PETRI_PLACES=650, PETRI_TRANSITIONS=648} [2023-11-21 22:12:15,237 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -33 predicate places. [2023-11-21 22:12:15,237 INFO L495 AbstractCegarLoop]: Abstraction has has 650 places, 648 transitions, 1459 flow [2023-11-21 22:12:15,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 704.0) internal successors, (2112), 3 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:15,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:15,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:15,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-21 22:12:15,239 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:12:15,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:15,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1766339336, now seen corresponding path program 1 times [2023-11-21 22:12:15,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:15,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350287750] [2023-11-21 22:12:15,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:15,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:15,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:15,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:15,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350287750] [2023-11-21 22:12:15,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350287750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:15,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:15,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:15,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156202643] [2023-11-21 22:12:15,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:15,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:15,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:15,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:15,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:15,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 702 out of 735 [2023-11-21 22:12:15,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 650 places, 648 transitions, 1459 flow. Second operand has 3 states, 3 states have (on average 703.6666666666666) internal successors, (2111), 3 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:15,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:15,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 702 of 735 [2023-11-21 22:12:15,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:16,269 INFO L124 PetriNetUnfolderBase]: 122/3768 cut-off events. [2023-11-21 22:12:16,270 INFO L125 PetriNetUnfolderBase]: For 39/51 co-relation queries the response was YES. [2023-11-21 22:12:16,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4150 conditions, 3768 events. 122/3768 cut-off events. For 39/51 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 31636 event pairs, 8 based on Foata normal form. 0/3364 useless extension candidates. Maximal degree in co-relation 4101. Up to 84 conditions per place. [2023-11-21 22:12:16,302 INFO L140 encePairwiseOnDemand]: 732/735 looper letters, 10 selfloop transitions, 2 changer transitions 0/648 dead transitions. [2023-11-21 22:12:16,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 651 places, 648 transitions, 1484 flow [2023-11-21 22:12:16,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:16,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:12:16,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2119 transitions. [2023-11-21 22:12:16,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9609977324263038 [2023-11-21 22:12:16,308 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2119 transitions. [2023-11-21 22:12:16,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2119 transitions. [2023-11-21 22:12:16,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:16,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2119 transitions. [2023-11-21 22:12:16,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:16,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:16,316 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:16,317 INFO L175 Difference]: Start difference. First operand has 650 places, 648 transitions, 1459 flow. Second operand 3 states and 2119 transitions. [2023-11-21 22:12:16,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 651 places, 648 transitions, 1484 flow [2023-11-21 22:12:16,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 649 places, 648 transitions, 1480 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:12:16,337 INFO L231 Difference]: Finished difference. Result has 649 places, 647 transitions, 1457 flow [2023-11-21 22:12:16,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1453, PETRI_DIFFERENCE_MINUEND_PLACES=647, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=647, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=645, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1457, PETRI_PLACES=649, PETRI_TRANSITIONS=647} [2023-11-21 22:12:16,339 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -34 predicate places. [2023-11-21 22:12:16,339 INFO L495 AbstractCegarLoop]: Abstraction has has 649 places, 647 transitions, 1457 flow [2023-11-21 22:12:16,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 703.6666666666666) internal successors, (2111), 3 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:16,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:16,340 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:16,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-21 22:12:16,341 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:12:16,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:16,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1467782923, now seen corresponding path program 1 times [2023-11-21 22:12:16,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:16,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700811216] [2023-11-21 22:12:16,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:16,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:16,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:16,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:16,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700811216] [2023-11-21 22:12:16,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700811216] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:16,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:16,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:16,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342638160] [2023-11-21 22:12:16,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:16,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:16,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:16,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:16,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:16,472 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 703 out of 735 [2023-11-21 22:12:16,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 647 transitions, 1457 flow. Second operand has 3 states, 3 states have (on average 704.3333333333334) internal successors, (2113), 3 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:16,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:16,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 703 of 735 [2023-11-21 22:12:16,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:18,052 INFO L124 PetriNetUnfolderBase]: 156/5426 cut-off events. [2023-11-21 22:12:18,052 INFO L125 PetriNetUnfolderBase]: For 45/57 co-relation queries the response was YES. [2023-11-21 22:12:18,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5803 conditions, 5426 events. 156/5426 cut-off events. For 45/57 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 50229 event pairs, 8 based on Foata normal form. 0/4848 useless extension candidates. Maximal degree in co-relation 5754. Up to 96 conditions per place. [2023-11-21 22:12:18,131 INFO L140 encePairwiseOnDemand]: 731/735 looper letters, 10 selfloop transitions, 2 changer transitions 0/648 dead transitions. [2023-11-21 22:12:18,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 649 places, 648 transitions, 1484 flow [2023-11-21 22:12:18,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:18,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:12:18,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2123 transitions. [2023-11-21 22:12:18,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9628117913832199 [2023-11-21 22:12:18,136 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2123 transitions. [2023-11-21 22:12:18,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2123 transitions. [2023-11-21 22:12:18,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:18,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2123 transitions. [2023-11-21 22:12:18,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 707.6666666666666) internal successors, (2123), 3 states have internal predecessors, (2123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:18,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:18,170 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:18,171 INFO L175 Difference]: Start difference. First operand has 649 places, 647 transitions, 1457 flow. Second operand 3 states and 2123 transitions. [2023-11-21 22:12:18,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 649 places, 648 transitions, 1484 flow [2023-11-21 22:12:18,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 647 places, 648 transitions, 1480 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:12:18,209 INFO L231 Difference]: Finished difference. Result has 648 places, 647 transitions, 1463 flow [2023-11-21 22:12:18,213 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1449, PETRI_DIFFERENCE_MINUEND_PLACES=645, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=643, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1463, PETRI_PLACES=648, PETRI_TRANSITIONS=647} [2023-11-21 22:12:18,214 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -35 predicate places. [2023-11-21 22:12:18,214 INFO L495 AbstractCegarLoop]: Abstraction has has 648 places, 647 transitions, 1463 flow [2023-11-21 22:12:18,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 704.3333333333334) internal successors, (2113), 3 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:18,215 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:18,215 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:18,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-21 22:12:18,216 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:12:18,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:18,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1306567313, now seen corresponding path program 1 times [2023-11-21 22:12:18,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:18,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461741259] [2023-11-21 22:12:18,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:18,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:18,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:18,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:18,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461741259] [2023-11-21 22:12:18,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461741259] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:18,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:18,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:18,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096663945] [2023-11-21 22:12:18,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:18,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:18,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:18,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:18,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:18,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 702 out of 735 [2023-11-21 22:12:18,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 648 places, 647 transitions, 1463 flow. Second operand has 3 states, 3 states have (on average 704.0) internal successors, (2112), 3 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:18,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:18,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 702 of 735 [2023-11-21 22:12:18,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:19,606 INFO L124 PetriNetUnfolderBase]: 142/4854 cut-off events. [2023-11-21 22:12:19,606 INFO L125 PetriNetUnfolderBase]: For 55/69 co-relation queries the response was YES. [2023-11-21 22:12:19,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5302 conditions, 4854 events. 142/4854 cut-off events. For 55/69 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 43991 event pairs, 8 based on Foata normal form. 0/4352 useless extension candidates. Maximal degree in co-relation 5253. Up to 116 conditions per place. [2023-11-21 22:12:19,651 INFO L140 encePairwiseOnDemand]: 732/735 looper letters, 10 selfloop transitions, 2 changer transitions 0/647 dead transitions. [2023-11-21 22:12:19,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 649 places, 647 transitions, 1488 flow [2023-11-21 22:12:19,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:19,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:12:19,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2119 transitions. [2023-11-21 22:12:19,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9609977324263038 [2023-11-21 22:12:19,654 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2119 transitions. [2023-11-21 22:12:19,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2119 transitions. [2023-11-21 22:12:19,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:19,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2119 transitions. [2023-11-21 22:12:19,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 706.3333333333334) internal successors, (2119), 3 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:19,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:19,660 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:19,661 INFO L175 Difference]: Start difference. First operand has 648 places, 647 transitions, 1463 flow. Second operand 3 states and 2119 transitions. [2023-11-21 22:12:19,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 649 places, 647 transitions, 1488 flow [2023-11-21 22:12:19,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 649 places, 647 transitions, 1488 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:12:19,678 INFO L231 Difference]: Finished difference. Result has 649 places, 646 transitions, 1465 flow [2023-11-21 22:12:19,679 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1461, PETRI_DIFFERENCE_MINUEND_PLACES=647, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=646, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=644, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1465, PETRI_PLACES=649, PETRI_TRANSITIONS=646} [2023-11-21 22:12:19,680 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -34 predicate places. [2023-11-21 22:12:19,680 INFO L495 AbstractCegarLoop]: Abstraction has has 649 places, 646 transitions, 1465 flow [2023-11-21 22:12:19,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 704.0) internal successors, (2112), 3 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:19,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:19,681 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:19,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-21 22:12:19,682 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:12:19,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:19,683 INFO L85 PathProgramCache]: Analyzing trace with hash 342375853, now seen corresponding path program 1 times [2023-11-21 22:12:19,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:19,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716845572] [2023-11-21 22:12:19,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:19,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:19,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:19,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:19,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716845572] [2023-11-21 22:12:19,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716845572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:19,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:19,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:19,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813442785] [2023-11-21 22:12:19,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:19,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:19,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:19,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:19,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:20,234 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 690 out of 735 [2023-11-21 22:12:20,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 646 transitions, 1465 flow. Second operand has 3 states, 3 states have (on average 692.3333333333334) internal successors, (2077), 3 states have internal predecessors, (2077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:20,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:20,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 690 of 735 [2023-11-21 22:12:20,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:21,460 INFO L124 PetriNetUnfolderBase]: 162/5508 cut-off events. [2023-11-21 22:12:21,460 INFO L125 PetriNetUnfolderBase]: For 45/57 co-relation queries the response was YES. [2023-11-21 22:12:21,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5969 conditions, 5508 events. 162/5508 cut-off events. For 45/57 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 50515 event pairs, 8 based on Foata normal form. 0/4958 useless extension candidates. Maximal degree in co-relation 5916. Up to 100 conditions per place. [2023-11-21 22:12:21,519 INFO L140 encePairwiseOnDemand]: 731/735 looper letters, 23 selfloop transitions, 2 changer transitions 0/647 dead transitions. [2023-11-21 22:12:21,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 649 places, 647 transitions, 1518 flow [2023-11-21 22:12:21,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:21,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:12:21,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2097 transitions. [2023-11-21 22:12:21,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9510204081632653 [2023-11-21 22:12:21,524 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2097 transitions. [2023-11-21 22:12:21,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2097 transitions. [2023-11-21 22:12:21,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:21,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2097 transitions. [2023-11-21 22:12:21,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 699.0) internal successors, (2097), 3 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:21,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:21,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 735.0) internal successors, (2940), 4 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:21,532 INFO L175 Difference]: Start difference. First operand has 649 places, 646 transitions, 1465 flow. Second operand 3 states and 2097 transitions. [2023-11-21 22:12:21,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 649 places, 647 transitions, 1518 flow [2023-11-21 22:12:21,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 647 places, 647 transitions, 1514 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:12:21,550 INFO L231 Difference]: Finished difference. Result has 648 places, 646 transitions, 1471 flow [2023-11-21 22:12:21,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=1457, PETRI_DIFFERENCE_MINUEND_PLACES=645, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=642, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1471, PETRI_PLACES=648, PETRI_TRANSITIONS=646} [2023-11-21 22:12:21,552 INFO L281 CegarLoopForPetriNet]: 683 programPoint places, -35 predicate places. [2023-11-21 22:12:21,552 INFO L495 AbstractCegarLoop]: Abstraction has has 648 places, 646 transitions, 1471 flow [2023-11-21 22:12:21,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 692.3333333333334) internal successors, (2077), 3 states have internal predecessors, (2077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:21,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:21,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:21,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-21 22:12:21,554 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2023-11-21 22:12:21,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:21,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1410857044, now seen corresponding path program 1 times [2023-11-21 22:12:21,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:21,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399106319] [2023-11-21 22:12:21,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:21,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:21,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:21,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:21,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399106319] [2023-11-21 22:12:21,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399106319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:21,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:21,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:21,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883163484] [2023-11-21 22:12:21,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:21,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:21,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:21,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:21,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:21,684 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 703 out of 735 [2023-11-21 22:12:21,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 648 places, 646 transitions, 1471 flow. Second operand has 3 states, 3 states have (on average 704.6666666666666) internal successors, (2114), 3 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:12:21,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:21,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 703 of 735 [2023-11-21 22:12:21,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand