./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-name-comparator-trans.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_3dcf8855-0b63-46b6-aaf2-d3e58317255d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dcf8855-0b63-46b6-aaf2-d3e58317255d/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_3dcf8855-0b63-46b6-aaf2-d3e58317255d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dcf8855-0b63-46b6-aaf2-d3e58317255d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dcf8855-0b63-46b6-aaf2-d3e58317255d/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_3dcf8855-0b63-46b6-aaf2-d3e58317255d/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 362ca5c35cce683744d8d619a442f154ce469608d45ae43ff282ddf886694959 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:01:47,473 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:01:47,605 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dcf8855-0b63-46b6-aaf2-d3e58317255d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 21:01:47,612 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:01:47,613 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:01:47,653 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:01:47,654 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:01:47,655 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:01:47,656 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:01:47,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:01:47,663 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:01:47,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:01:47,664 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:01:47,666 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:01:47,667 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:01:47,667 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:01:47,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:01:47,668 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:01:47,669 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:01:47,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:01:47,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:01:47,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:01:47,671 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 21:01:47,671 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:01:47,671 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:01:47,672 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:01:47,672 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:01:47,673 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:01:47,674 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:01:47,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:01:47,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:01:47,676 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:01:47,677 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:01:47,677 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:01:47,677 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:01:47,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:01:47,678 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:01:47,678 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:01:47,678 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:01:47,678 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:01:47,679 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:01:47,679 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_3dcf8855-0b63-46b6-aaf2-d3e58317255d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dcf8855-0b63-46b6-aaf2-d3e58317255d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 362ca5c35cce683744d8d619a442f154ce469608d45ae43ff282ddf886694959 [2023-11-21 21:01:48,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:01:48,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:01:48,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:01:48,146 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:01:48,147 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:01:48,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dcf8855-0b63-46b6-aaf2-d3e58317255d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2023-11-21 21:01:51,275 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:01:51,469 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:01:51,470 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dcf8855-0b63-46b6-aaf2-d3e58317255d/sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2023-11-21 21:01:51,480 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dcf8855-0b63-46b6-aaf2-d3e58317255d/bin/uautomizer-verify-bycVGegfSx/data/35f3f3a8a/f73666b2fa084e11995b90992c924cfc/FLAG15616c234 [2023-11-21 21:01:51,493 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dcf8855-0b63-46b6-aaf2-d3e58317255d/bin/uautomizer-verify-bycVGegfSx/data/35f3f3a8a/f73666b2fa084e11995b90992c924cfc [2023-11-21 21:01:51,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:01:51,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:01:51,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:01:51,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:01:51,508 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:01:51,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:01:51" (1/1) ... [2023-11-21 21:01:51,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f1a7a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:51, skipping insertion in model container [2023-11-21 21:01:51,510 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:01:51" (1/1) ... [2023-11-21 21:01:51,542 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:01:51,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:01:51,887 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:01:51,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:01:51,958 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:01:51,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:51 WrapperNode [2023-11-21 21:01:51,959 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:01:51,960 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:01:51,960 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:01:51,960 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:01:51,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:51" (1/1) ... [2023-11-21 21:01:51,987 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:51" (1/1) ... [2023-11-21 21:01:52,073 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 874 [2023-11-21 21:01:52,074 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:01:52,075 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:01:52,076 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:01:52,084 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:01:52,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:51" (1/1) ... [2023-11-21 21:01:52,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:51" (1/1) ... [2023-11-21 21:01:52,103 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:51" (1/1) ... [2023-11-21 21:01:52,103 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:51" (1/1) ... [2023-11-21 21:01:52,145 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:51" (1/1) ... [2023-11-21 21:01:52,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:51" (1/1) ... [2023-11-21 21:01:52,168 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:51" (1/1) ... [2023-11-21 21:01:52,172 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:51" (1/1) ... [2023-11-21 21:01:52,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:01:52,180 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:01:52,180 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:01:52,180 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:01:52,181 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:51" (1/1) ... [2023-11-21 21:01:52,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:01:52,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dcf8855-0b63-46b6-aaf2-d3e58317255d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:52,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dcf8855-0b63-46b6-aaf2-d3e58317255d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:52,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dcf8855-0b63-46b6-aaf2-d3e58317255d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:01:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:01:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:01:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 21:01:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 21:01:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 21:01:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 21:01:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 21:01:52,284 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 21:01:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-21 21:01:52,285 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-21 21:01:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 21:01:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 21:01:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:01:52,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:01:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:01:52,290 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 21:01:52,483 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:01:52,485 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:01:53,752 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:01:53,789 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:01:53,790 INFO L308 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-21 21:01:53,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:01:53 BoogieIcfgContainer [2023-11-21 21:01:53,792 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:01:53,795 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:01:53,795 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:01:53,799 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:01:53,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:01:51" (1/3) ... [2023-11-21 21:01:53,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a49467c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:01:53, skipping insertion in model container [2023-11-21 21:01:53,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:51" (2/3) ... [2023-11-21 21:01:53,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a49467c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:01:53, skipping insertion in model container [2023-11-21 21:01:53,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:01:53" (3/3) ... [2023-11-21 21:01:53,802 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-trans.wvr.c [2023-11-21 21:01:53,811 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 21:01:53,823 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:01:53,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 152 error locations. [2023-11-21 21:01:53,825 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 21:01:54,145 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-21 21:01:54,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1085 places, 1133 transitions, 2287 flow [2023-11-21 21:01:55,206 INFO L124 PetriNetUnfolderBase]: 58/1130 cut-off events. [2023-11-21 21:01:55,207 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 21:01:55,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1143 conditions, 1130 events. 58/1130 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3903 event pairs, 0 based on Foata normal form. 0/920 useless extension candidates. Maximal degree in co-relation 857. Up to 2 conditions per place. [2023-11-21 21:01:55,275 INFO L82 GeneralOperation]: Start removeDead. Operand has 1085 places, 1133 transitions, 2287 flow [2023-11-21 21:01:55,339 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1057 places, 1103 transitions, 2224 flow [2023-11-21 21:01:55,368 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:01:55,382 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;@2c09d958, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:01:55,382 INFO L358 AbstractCegarLoop]: Starting to check reachability of 284 error locations. [2023-11-21 21:01:55,392 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 21:01:55,393 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2023-11-21 21:01:55,393 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 21:01:55,393 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:55,394 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:01:55,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-21 21:01:55,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:55,405 INFO L85 PathProgramCache]: Analyzing trace with hash 741302430, now seen corresponding path program 1 times [2023-11-21 21:01:55,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:55,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004308688] [2023-11-21 21:01:55,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:55,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:55,741 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 21:01:55,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:55,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004308688] [2023-11-21 21:01:55,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004308688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:55,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:55,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:55,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623277221] [2023-11-21 21:01:55,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:55,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:55,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:55,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:55,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:55,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1090 out of 1133 [2023-11-21 21:01:55,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1057 places, 1103 transitions, 2224 flow. Second operand has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 0 states 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 21:01:55,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:55,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1090 of 1133 [2023-11-21 21:01:55,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:58,906 INFO L124 PetriNetUnfolderBase]: 227/4435 cut-off events. [2023-11-21 21:01:58,906 INFO L125 PetriNetUnfolderBase]: For 54/61 co-relation queries the response was YES. [2023-11-21 21:01:59,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4590 conditions, 4435 events. 227/4435 cut-off events. For 54/61 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 33854 event pairs, 45 based on Foata normal form. 209/3721 useless extension candidates. Maximal degree in co-relation 3765. Up to 110 conditions per place. [2023-11-21 21:01:59,112 INFO L140 encePairwiseOnDemand]: 1112/1133 looper letters, 19 selfloop transitions, 2 changer transitions 2/1084 dead transitions. [2023-11-21 21:01:59,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1058 places, 1084 transitions, 2228 flow [2023-11-21 21:01:59,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:01:59,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:01:59,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3310 transitions. [2023-11-21 21:01:59,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9738158281847602 [2023-11-21 21:01:59,144 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3310 transitions. [2023-11-21 21:01:59,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3310 transitions. [2023-11-21 21:01:59,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:59,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3310 transitions. [2023-11-21 21:01:59,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1103.3333333333333) internal successors, (3310), 3 states have internal predecessors, (3310), 0 states have call successors, (0), 0 states 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 21:01:59,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:01:59,196 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:01:59,198 INFO L175 Difference]: Start difference. First operand has 1057 places, 1103 transitions, 2224 flow. Second operand 3 states and 3310 transitions. [2023-11-21 21:01:59,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1058 places, 1084 transitions, 2228 flow [2023-11-21 21:01:59,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1052 places, 1084 transitions, 2216 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-21 21:01:59,248 INFO L231 Difference]: Finished difference. Result has 1052 places, 1082 transitions, 2174 flow [2023-11-21 21:01:59,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2174, PETRI_DIFFERENCE_MINUEND_PLACES=1050, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1084, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1082, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2174, PETRI_PLACES=1052, PETRI_TRANSITIONS=1082} [2023-11-21 21:01:59,258 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -5 predicate places. [2023-11-21 21:01:59,259 INFO L495 AbstractCegarLoop]: Abstraction has has 1052 places, 1082 transitions, 2174 flow [2023-11-21 21:01:59,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 0 states 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 21:01:59,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:59,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:01:59,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:01:59,264 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-21 21:01:59,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:59,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1558423897, now seen corresponding path program 1 times [2023-11-21 21:01:59,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:59,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009197104] [2023-11-21 21:01:59,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:59,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:59,373 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 21:01:59,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:59,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009197104] [2023-11-21 21:01:59,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009197104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:59,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:59,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:59,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113565390] [2023-11-21 21:01:59,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:59,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:59,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:59,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:59,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:59,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1090 out of 1133 [2023-11-21 21:01:59,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1052 places, 1082 transitions, 2174 flow. Second operand has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 0 states 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 21:01:59,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:59,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1090 of 1133 [2023-11-21 21:01:59,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:05,359 INFO L124 PetriNetUnfolderBase]: 613/12441 cut-off events. [2023-11-21 21:02:05,359 INFO L125 PetriNetUnfolderBase]: For 8/20 co-relation queries the response was YES. [2023-11-21 21:02:05,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12675 conditions, 12441 events. 613/12441 cut-off events. For 8/20 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 124170 event pairs, 95 based on Foata normal form. 0/9786 useless extension candidates. Maximal degree in co-relation 12634. Up to 185 conditions per place. [2023-11-21 21:02:05,912 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 19 selfloop transitions, 2 changer transitions 0/1081 dead transitions. [2023-11-21 21:02:05,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1051 places, 1081 transitions, 2214 flow [2023-11-21 21:02:05,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:05,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:05,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3292 transitions. [2023-11-21 21:02:05,927 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9685201529861724 [2023-11-21 21:02:05,927 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3292 transitions. [2023-11-21 21:02:05,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3292 transitions. [2023-11-21 21:02:05,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:05,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3292 transitions. [2023-11-21 21:02:05,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 0 states 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 21:02:05,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:05,964 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:05,964 INFO L175 Difference]: Start difference. First operand has 1052 places, 1082 transitions, 2174 flow. Second operand 3 states and 3292 transitions. [2023-11-21 21:02:05,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1051 places, 1081 transitions, 2214 flow [2023-11-21 21:02:05,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1049 places, 1081 transitions, 2210 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:05,995 INFO L231 Difference]: Finished difference. Result has 1049 places, 1081 transitions, 2172 flow [2023-11-21 21:02:05,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2168, PETRI_DIFFERENCE_MINUEND_PLACES=1047, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1081, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1079, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2172, PETRI_PLACES=1049, PETRI_TRANSITIONS=1081} [2023-11-21 21:02:06,000 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -8 predicate places. [2023-11-21 21:02:06,000 INFO L495 AbstractCegarLoop]: Abstraction has has 1049 places, 1081 transitions, 2172 flow [2023-11-21 21:02:06,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 0 states 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 21:02:06,004 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:06,005 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:06,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 21:02:06,005 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-21 21:02:06,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:06,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1516877624, now seen corresponding path program 1 times [2023-11-21 21:02:06,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:06,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949606267] [2023-11-21 21:02:06,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:06,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:06,104 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 21:02:06,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:06,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949606267] [2023-11-21 21:02:06,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949606267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:06,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:06,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:06,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611792070] [2023-11-21 21:02:06,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:06,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:06,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:06,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:06,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:06,192 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1090 out of 1133 [2023-11-21 21:02:06,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1049 places, 1081 transitions, 2172 flow. Second operand has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 0 states 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 21:02:06,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:06,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1090 of 1133 [2023-11-21 21:02:06,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:08,367 INFO L124 PetriNetUnfolderBase]: 241/3780 cut-off events. [2023-11-21 21:02:08,367 INFO L125 PetriNetUnfolderBase]: For 43/76 co-relation queries the response was YES. [2023-11-21 21:02:08,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3979 conditions, 3780 events. 241/3780 cut-off events. For 43/76 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 28674 event pairs, 95 based on Foata normal form. 0/3014 useless extension candidates. Maximal degree in co-relation 3930. Up to 185 conditions per place. [2023-11-21 21:02:08,612 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 19 selfloop transitions, 2 changer transitions 0/1080 dead transitions. [2023-11-21 21:02:08,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1050 places, 1080 transitions, 2212 flow [2023-11-21 21:02:08,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:08,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:08,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3292 transitions. [2023-11-21 21:02:08,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9685201529861724 [2023-11-21 21:02:08,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3292 transitions. [2023-11-21 21:02:08,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3292 transitions. [2023-11-21 21:02:08,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:08,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3292 transitions. [2023-11-21 21:02:08,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 0 states 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 21:02:08,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:08,664 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:08,664 INFO L175 Difference]: Start difference. First operand has 1049 places, 1081 transitions, 2172 flow. Second operand 3 states and 3292 transitions. [2023-11-21 21:02:08,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1050 places, 1080 transitions, 2212 flow [2023-11-21 21:02:08,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1048 places, 1080 transitions, 2208 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:08,693 INFO L231 Difference]: Finished difference. Result has 1048 places, 1080 transitions, 2170 flow [2023-11-21 21:02:08,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2166, PETRI_DIFFERENCE_MINUEND_PLACES=1046, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1080, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1078, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2170, PETRI_PLACES=1048, PETRI_TRANSITIONS=1080} [2023-11-21 21:02:08,697 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -9 predicate places. [2023-11-21 21:02:08,698 INFO L495 AbstractCegarLoop]: Abstraction has has 1048 places, 1080 transitions, 2170 flow [2023-11-21 21:02:08,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 0 states 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 21:02:08,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:08,702 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] [2023-11-21 21:02:08,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 21:02:08,703 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-21 21:02:08,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:08,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1023325623, now seen corresponding path program 1 times [2023-11-21 21:02:08,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:08,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358693301] [2023-11-21 21:02:08,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:08,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:08,852 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 21:02:08,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:08,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358693301] [2023-11-21 21:02:08,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358693301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:08,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:08,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:08,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158277479] [2023-11-21 21:02:08,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:08,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:08,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:08,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:08,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:08,948 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1091 out of 1133 [2023-11-21 21:02:08,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1048 places, 1080 transitions, 2170 flow. Second operand has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 0 states 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 21:02:08,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:08,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1091 of 1133 [2023-11-21 21:02:08,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:11,827 INFO L124 PetriNetUnfolderBase]: 246/5559 cut-off events. [2023-11-21 21:02:11,827 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-21 21:02:11,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5635 conditions, 5559 events. 246/5559 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 44404 event pairs, 16 based on Foata normal form. 0/4396 useless extension candidates. Maximal degree in co-relation 5578. Up to 51 conditions per place. [2023-11-21 21:02:12,101 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 18 selfloop transitions, 2 changer transitions 0/1079 dead transitions. [2023-11-21 21:02:12,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1049 places, 1079 transitions, 2208 flow [2023-11-21 21:02:12,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:12,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:12,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3294 transitions. [2023-11-21 21:02:12,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9691085613415711 [2023-11-21 21:02:12,114 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3294 transitions. [2023-11-21 21:02:12,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3294 transitions. [2023-11-21 21:02:12,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:12,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3294 transitions. [2023-11-21 21:02:12,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1098.0) internal successors, (3294), 3 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states 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 21:02:12,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:12,143 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:12,143 INFO L175 Difference]: Start difference. First operand has 1048 places, 1080 transitions, 2170 flow. Second operand 3 states and 3294 transitions. [2023-11-21 21:02:12,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1049 places, 1079 transitions, 2208 flow [2023-11-21 21:02:12,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1047 places, 1079 transitions, 2204 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:12,171 INFO L231 Difference]: Finished difference. Result has 1047 places, 1079 transitions, 2168 flow [2023-11-21 21:02:12,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2164, PETRI_DIFFERENCE_MINUEND_PLACES=1045, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1079, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1077, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2168, PETRI_PLACES=1047, PETRI_TRANSITIONS=1079} [2023-11-21 21:02:12,175 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -10 predicate places. [2023-11-21 21:02:12,175 INFO L495 AbstractCegarLoop]: Abstraction has has 1047 places, 1079 transitions, 2168 flow [2023-11-21 21:02:12,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 0 states 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 21:02:12,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:12,178 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] [2023-11-21 21:02:12,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 21:02:12,178 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-21 21:02:12,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:12,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1657102122, now seen corresponding path program 1 times [2023-11-21 21:02:12,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:12,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532160538] [2023-11-21 21:02:12,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:12,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:12,245 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 21:02:12,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:12,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532160538] [2023-11-21 21:02:12,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532160538] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:12,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:12,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:12,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104082288] [2023-11-21 21:02:12,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:12,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:12,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:12,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:12,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:12,291 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1094 out of 1133 [2023-11-21 21:02:12,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1047 places, 1079 transitions, 2168 flow. Second operand has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states 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 21:02:12,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:12,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1094 of 1133 [2023-11-21 21:02:12,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:13,235 INFO L124 PetriNetUnfolderBase]: 74/1626 cut-off events. [2023-11-21 21:02:13,235 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 21:02:13,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1687 conditions, 1626 events. 74/1626 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 8263 event pairs, 12 based on Foata normal form. 0/1310 useless extension candidates. Maximal degree in co-relation 1622. Up to 40 conditions per place. [2023-11-21 21:02:13,313 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 15 selfloop transitions, 2 changer transitions 0/1078 dead transitions. [2023-11-21 21:02:13,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1048 places, 1078 transitions, 2200 flow [2023-11-21 21:02:13,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:13,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:13,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3300 transitions. [2023-11-21 21:02:13,325 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.970873786407767 [2023-11-21 21:02:13,326 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3300 transitions. [2023-11-21 21:02:13,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3300 transitions. [2023-11-21 21:02:13,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:13,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3300 transitions. [2023-11-21 21:02:13,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.0) internal successors, (3300), 3 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states 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 21:02:13,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:13,351 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:13,352 INFO L175 Difference]: Start difference. First operand has 1047 places, 1079 transitions, 2168 flow. Second operand 3 states and 3300 transitions. [2023-11-21 21:02:13,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1048 places, 1078 transitions, 2200 flow [2023-11-21 21:02:13,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1046 places, 1078 transitions, 2196 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:13,377 INFO L231 Difference]: Finished difference. Result has 1046 places, 1078 transitions, 2166 flow [2023-11-21 21:02:13,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2162, PETRI_DIFFERENCE_MINUEND_PLACES=1044, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1078, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1076, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2166, PETRI_PLACES=1046, PETRI_TRANSITIONS=1078} [2023-11-21 21:02:13,381 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -11 predicate places. [2023-11-21 21:02:13,381 INFO L495 AbstractCegarLoop]: Abstraction has has 1046 places, 1078 transitions, 2166 flow [2023-11-21 21:02:13,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states 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 21:02:13,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:13,383 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] [2023-11-21 21:02:13,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 21:02:13,383 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-21 21:02:13,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:13,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1750689404, now seen corresponding path program 1 times [2023-11-21 21:02:13,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:13,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828784434] [2023-11-21 21:02:13,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:13,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:13,444 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 21:02:13,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:13,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828784434] [2023-11-21 21:02:13,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828784434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:13,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:13,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:13,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948008956] [2023-11-21 21:02:13,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:13,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:13,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:13,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:13,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:13,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1095 out of 1133 [2023-11-21 21:02:13,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1046 places, 1078 transitions, 2166 flow. Second operand has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 0 states 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 21:02:13,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:13,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1095 of 1133 [2023-11-21 21:02:13,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:15,760 INFO L124 PetriNetUnfolderBase]: 168/3877 cut-off events. [2023-11-21 21:02:15,761 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-21 21:02:15,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3931 conditions, 3877 events. 168/3877 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 26525 event pairs, 10 based on Foata normal form. 0/3080 useless extension candidates. Maximal degree in co-relation 3858. Up to 35 conditions per place. [2023-11-21 21:02:15,892 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 14 selfloop transitions, 2 changer transitions 0/1077 dead transitions. [2023-11-21 21:02:15,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1047 places, 1077 transitions, 2196 flow [2023-11-21 21:02:15,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:15,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:15,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3302 transitions. [2023-11-21 21:02:15,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9714621947631656 [2023-11-21 21:02:15,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3302 transitions. [2023-11-21 21:02:15,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3302 transitions. [2023-11-21 21:02:15,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:15,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3302 transitions. [2023-11-21 21:02:15,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.6666666666667) internal successors, (3302), 3 states have internal predecessors, (3302), 0 states have call successors, (0), 0 states 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 21:02:15,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:15,930 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:15,931 INFO L175 Difference]: Start difference. First operand has 1046 places, 1078 transitions, 2166 flow. Second operand 3 states and 3302 transitions. [2023-11-21 21:02:15,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1047 places, 1077 transitions, 2196 flow [2023-11-21 21:02:15,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1045 places, 1077 transitions, 2192 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:15,959 INFO L231 Difference]: Finished difference. Result has 1045 places, 1077 transitions, 2164 flow [2023-11-21 21:02:15,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2160, PETRI_DIFFERENCE_MINUEND_PLACES=1043, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1077, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1075, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2164, PETRI_PLACES=1045, PETRI_TRANSITIONS=1077} [2023-11-21 21:02:15,963 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -12 predicate places. [2023-11-21 21:02:15,963 INFO L495 AbstractCegarLoop]: Abstraction has has 1045 places, 1077 transitions, 2164 flow [2023-11-21 21:02:15,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 0 states 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 21:02:15,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:15,966 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] [2023-11-21 21:02:15,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 21:02:15,966 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-21 21:02:15,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:15,967 INFO L85 PathProgramCache]: Analyzing trace with hash 759818156, now seen corresponding path program 1 times [2023-11-21 21:02:15,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:15,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222386749] [2023-11-21 21:02:15,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:15,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:16,033 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 21:02:16,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:16,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222386749] [2023-11-21 21:02:16,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222386749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:16,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:16,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:16,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661526341] [2023-11-21 21:02:16,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:16,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:16,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:16,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:16,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:16,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1088 out of 1133 [2023-11-21 21:02:16,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1045 places, 1077 transitions, 2164 flow. Second operand has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states 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 21:02:16,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:16,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1088 of 1133 [2023-11-21 21:02:16,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:19,722 INFO L124 PetriNetUnfolderBase]: 350/7796 cut-off events. [2023-11-21 21:02:19,722 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-21 21:02:19,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7899 conditions, 7796 events. 350/7796 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 69443 event pairs, 24 based on Foata normal form. 0/6158 useless extension candidates. Maximal degree in co-relation 7818. Up to 70 conditions per place. [2023-11-21 21:02:20,074 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 21 selfloop transitions, 2 changer transitions 0/1076 dead transitions. [2023-11-21 21:02:20,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1046 places, 1076 transitions, 2208 flow [2023-11-21 21:02:20,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:20,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:20,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3288 transitions. [2023-11-21 21:02:20,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9673433362753752 [2023-11-21 21:02:20,086 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3288 transitions. [2023-11-21 21:02:20,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3288 transitions. [2023-11-21 21:02:20,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:20,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3288 transitions. [2023-11-21 21:02:20,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states 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 21:02:20,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:20,117 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:20,117 INFO L175 Difference]: Start difference. First operand has 1045 places, 1077 transitions, 2164 flow. Second operand 3 states and 3288 transitions. [2023-11-21 21:02:20,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1046 places, 1076 transitions, 2208 flow [2023-11-21 21:02:20,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1044 places, 1076 transitions, 2204 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:20,152 INFO L231 Difference]: Finished difference. Result has 1044 places, 1076 transitions, 2162 flow [2023-11-21 21:02:20,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2158, PETRI_DIFFERENCE_MINUEND_PLACES=1042, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1076, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1074, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2162, PETRI_PLACES=1044, PETRI_TRANSITIONS=1076} [2023-11-21 21:02:20,156 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -13 predicate places. [2023-11-21 21:02:20,157 INFO L495 AbstractCegarLoop]: Abstraction has has 1044 places, 1076 transitions, 2162 flow [2023-11-21 21:02:20,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states 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 21:02:20,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:20,159 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] [2023-11-21 21:02:20,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 21:02:20,160 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-21 21:02:20,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:20,160 INFO L85 PathProgramCache]: Analyzing trace with hash 775442071, now seen corresponding path program 1 times [2023-11-21 21:02:20,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:20,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258651510] [2023-11-21 21:02:20,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:20,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:20,228 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 21:02:20,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:20,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258651510] [2023-11-21 21:02:20,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258651510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:20,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:20,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:20,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649534581] [2023-11-21 21:02:20,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:20,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:20,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:20,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:20,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:20,303 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1091 out of 1133 [2023-11-21 21:02:20,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1044 places, 1076 transitions, 2162 flow. Second operand has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 0 states 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 21:02:20,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:20,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1091 of 1133 [2023-11-21 21:02:20,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:22,668 INFO L124 PetriNetUnfolderBase]: 150/3411 cut-off events. [2023-11-21 21:02:22,668 INFO L125 PetriNetUnfolderBase]: For 11/35 co-relation queries the response was YES. [2023-11-21 21:02:22,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3479 conditions, 3411 events. 150/3411 cut-off events. For 11/35 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 22878 event pairs, 16 based on Foata normal form. 0/2721 useless extension candidates. Maximal degree in co-relation 3390. Up to 51 conditions per place. [2023-11-21 21:02:22,902 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 18 selfloop transitions, 2 changer transitions 0/1075 dead transitions. [2023-11-21 21:02:22,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1045 places, 1075 transitions, 2200 flow [2023-11-21 21:02:22,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:22,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:22,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3294 transitions. [2023-11-21 21:02:22,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9691085613415711 [2023-11-21 21:02:22,912 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3294 transitions. [2023-11-21 21:02:22,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3294 transitions. [2023-11-21 21:02:22,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:22,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3294 transitions. [2023-11-21 21:02:22,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1098.0) internal successors, (3294), 3 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states 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 21:02:22,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:22,940 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:22,941 INFO L175 Difference]: Start difference. First operand has 1044 places, 1076 transitions, 2162 flow. Second operand 3 states and 3294 transitions. [2023-11-21 21:02:22,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1045 places, 1075 transitions, 2200 flow [2023-11-21 21:02:22,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1043 places, 1075 transitions, 2196 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:22,976 INFO L231 Difference]: Finished difference. Result has 1043 places, 1075 transitions, 2160 flow [2023-11-21 21:02:22,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2156, PETRI_DIFFERENCE_MINUEND_PLACES=1041, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1075, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1073, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2160, PETRI_PLACES=1043, PETRI_TRANSITIONS=1075} [2023-11-21 21:02:22,983 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -14 predicate places. [2023-11-21 21:02:22,984 INFO L495 AbstractCegarLoop]: Abstraction has has 1043 places, 1075 transitions, 2160 flow [2023-11-21 21:02:22,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 0 states 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 21:02:22,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:22,986 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:22,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 21:02:22,987 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-21 21:02:22,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:22,987 INFO L85 PathProgramCache]: Analyzing trace with hash 188796491, now seen corresponding path program 1 times [2023-11-21 21:02:22,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:22,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557604157] [2023-11-21 21:02:22,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:22,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:23,246 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 21:02:23,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:23,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557604157] [2023-11-21 21:02:23,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557604157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:23,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:23,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:23,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032910993] [2023-11-21 21:02:23,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:23,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:23,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:23,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:23,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:23,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1094 out of 1133 [2023-11-21 21:02:23,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1043 places, 1075 transitions, 2160 flow. Second operand has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states 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 21:02:23,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:23,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1094 of 1133 [2023-11-21 21:02:23,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:24,426 INFO L124 PetriNetUnfolderBase]: 74/1622 cut-off events. [2023-11-21 21:02:24,426 INFO L125 PetriNetUnfolderBase]: For 9/15 co-relation queries the response was YES. [2023-11-21 21:02:24,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1677 conditions, 1622 events. 74/1622 cut-off events. For 9/15 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 7892 event pairs, 12 based on Foata normal form. 0/1307 useless extension candidates. Maximal degree in co-relation 1580. Up to 40 conditions per place. [2023-11-21 21:02:24,501 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 15 selfloop transitions, 2 changer transitions 0/1074 dead transitions. [2023-11-21 21:02:24,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1044 places, 1074 transitions, 2192 flow [2023-11-21 21:02:24,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:24,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:24,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3300 transitions. [2023-11-21 21:02:24,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.970873786407767 [2023-11-21 21:02:24,513 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3300 transitions. [2023-11-21 21:02:24,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3300 transitions. [2023-11-21 21:02:24,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:24,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3300 transitions. [2023-11-21 21:02:24,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.0) internal successors, (3300), 3 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states 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 21:02:24,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:24,542 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:24,543 INFO L175 Difference]: Start difference. First operand has 1043 places, 1075 transitions, 2160 flow. Second operand 3 states and 3300 transitions. [2023-11-21 21:02:24,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1044 places, 1074 transitions, 2192 flow [2023-11-21 21:02:24,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1042 places, 1074 transitions, 2188 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:24,578 INFO L231 Difference]: Finished difference. Result has 1042 places, 1074 transitions, 2158 flow [2023-11-21 21:02:24,581 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2154, PETRI_DIFFERENCE_MINUEND_PLACES=1040, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1074, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1072, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2158, PETRI_PLACES=1042, PETRI_TRANSITIONS=1074} [2023-11-21 21:02:24,582 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -15 predicate places. [2023-11-21 21:02:24,582 INFO L495 AbstractCegarLoop]: Abstraction has has 1042 places, 1074 transitions, 2158 flow [2023-11-21 21:02:24,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states 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 21:02:24,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:24,585 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] [2023-11-21 21:02:24,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 21:02:24,585 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-21 21:02:24,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:24,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1586934559, now seen corresponding path program 1 times [2023-11-21 21:02:24,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:24,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223313049] [2023-11-21 21:02:24,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:24,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:24,693 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 21:02:24,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:24,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223313049] [2023-11-21 21:02:24,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223313049] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:24,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:24,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:24,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794344458] [2023-11-21 21:02:24,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:24,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:24,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:24,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:24,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:24,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1095 out of 1133 [2023-11-21 21:02:24,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1042 places, 1074 transitions, 2158 flow. Second operand has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 0 states 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 21:02:24,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:24,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1095 of 1133 [2023-11-21 21:02:24,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:26,618 INFO L124 PetriNetUnfolderBase]: 108/2533 cut-off events. [2023-11-21 21:02:26,618 INFO L125 PetriNetUnfolderBase]: For 8/10 co-relation queries the response was YES. [2023-11-21 21:02:26,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2582 conditions, 2533 events. 108/2533 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 14495 event pairs, 10 based on Foata normal form. 0/2033 useless extension candidates. Maximal degree in co-relation 2477. Up to 35 conditions per place. [2023-11-21 21:02:26,760 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 14 selfloop transitions, 2 changer transitions 0/1073 dead transitions. [2023-11-21 21:02:26,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1043 places, 1073 transitions, 2188 flow [2023-11-21 21:02:26,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:26,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:26,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3302 transitions. [2023-11-21 21:02:26,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9714621947631656 [2023-11-21 21:02:26,771 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3302 transitions. [2023-11-21 21:02:26,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3302 transitions. [2023-11-21 21:02:26,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:26,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3302 transitions. [2023-11-21 21:02:26,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.6666666666667) internal successors, (3302), 3 states have internal predecessors, (3302), 0 states have call successors, (0), 0 states 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 21:02:26,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:26,793 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:26,794 INFO L175 Difference]: Start difference. First operand has 1042 places, 1074 transitions, 2158 flow. Second operand 3 states and 3302 transitions. [2023-11-21 21:02:26,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1043 places, 1073 transitions, 2188 flow [2023-11-21 21:02:26,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1041 places, 1073 transitions, 2184 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:26,823 INFO L231 Difference]: Finished difference. Result has 1041 places, 1073 transitions, 2156 flow [2023-11-21 21:02:26,826 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2152, PETRI_DIFFERENCE_MINUEND_PLACES=1039, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1073, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1071, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2156, PETRI_PLACES=1041, PETRI_TRANSITIONS=1073} [2023-11-21 21:02:26,827 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -16 predicate places. [2023-11-21 21:02:26,827 INFO L495 AbstractCegarLoop]: Abstraction has has 1041 places, 1073 transitions, 2156 flow [2023-11-21 21:02:26,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 0 states 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 21:02:26,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:26,829 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] [2023-11-21 21:02:26,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 21:02:26,829 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-21 21:02:26,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:26,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1548338626, now seen corresponding path program 1 times [2023-11-21 21:02:26,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:26,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383179182] [2023-11-21 21:02:26,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:26,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:26,889 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 21:02:26,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:26,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383179182] [2023-11-21 21:02:26,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383179182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:26,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:26,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:26,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598070994] [2023-11-21 21:02:26,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:26,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:26,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:26,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:26,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:26,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1088 out of 1133 [2023-11-21 21:02:26,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1041 places, 1073 transitions, 2156 flow. Second operand has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states 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 21:02:26,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:26,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1088 of 1133 [2023-11-21 21:02:26,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:29,457 INFO L124 PetriNetUnfolderBase]: 206/4576 cut-off events. [2023-11-21 21:02:29,457 INFO L125 PetriNetUnfolderBase]: For 15/99 co-relation queries the response was YES. [2023-11-21 21:02:29,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4667 conditions, 4576 events. 206/4576 cut-off events. For 15/99 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 34687 event pairs, 24 based on Foata normal form. 0/3639 useless extension candidates. Maximal degree in co-relation 4554. Up to 70 conditions per place. [2023-11-21 21:02:30,069 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 21 selfloop transitions, 2 changer transitions 0/1072 dead transitions. [2023-11-21 21:02:30,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1042 places, 1072 transitions, 2200 flow [2023-11-21 21:02:30,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:30,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:30,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3288 transitions. [2023-11-21 21:02:30,080 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9673433362753752 [2023-11-21 21:02:30,080 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3288 transitions. [2023-11-21 21:02:30,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3288 transitions. [2023-11-21 21:02:30,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:30,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3288 transitions. [2023-11-21 21:02:30,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states 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 21:02:30,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:30,096 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:30,096 INFO L175 Difference]: Start difference. First operand has 1041 places, 1073 transitions, 2156 flow. Second operand 3 states and 3288 transitions. [2023-11-21 21:02:30,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1042 places, 1072 transitions, 2200 flow [2023-11-21 21:02:30,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1040 places, 1072 transitions, 2196 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:30,125 INFO L231 Difference]: Finished difference. Result has 1040 places, 1072 transitions, 2154 flow [2023-11-21 21:02:30,128 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2150, PETRI_DIFFERENCE_MINUEND_PLACES=1038, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1072, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1070, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2154, PETRI_PLACES=1040, PETRI_TRANSITIONS=1072} [2023-11-21 21:02:30,129 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -17 predicate places. [2023-11-21 21:02:30,129 INFO L495 AbstractCegarLoop]: Abstraction has has 1040 places, 1072 transitions, 2154 flow [2023-11-21 21:02:30,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states 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 21:02:30,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:30,130 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] [2023-11-21 21:02:30,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 21:02:30,131 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-21 21:02:30,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:30,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1161432532, now seen corresponding path program 1 times [2023-11-21 21:02:30,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:30,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675077934] [2023-11-21 21:02:30,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:30,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:30,187 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 21:02:30,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:30,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675077934] [2023-11-21 21:02:30,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675077934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:30,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:30,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:30,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246233037] [2023-11-21 21:02:30,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:30,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:30,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:30,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:30,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:30,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1091 out of 1133 [2023-11-21 21:02:30,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1040 places, 1072 transitions, 2154 flow. Second operand has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 0 states 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 21:02:30,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:30,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1091 of 1133 [2023-11-21 21:02:30,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:31,295 INFO L124 PetriNetUnfolderBase]: 78/1587 cut-off events. [2023-11-21 21:02:31,295 INFO L125 PetriNetUnfolderBase]: For 19/21 co-relation queries the response was YES. [2023-11-21 21:02:31,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1649 conditions, 1587 events. 78/1587 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 7490 event pairs, 16 based on Foata normal form. 0/1288 useless extension candidates. Maximal degree in co-relation 1528. Up to 53 conditions per place. [2023-11-21 21:02:31,369 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 18 selfloop transitions, 2 changer transitions 0/1071 dead transitions. [2023-11-21 21:02:31,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1041 places, 1071 transitions, 2192 flow [2023-11-21 21:02:31,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:31,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:31,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3294 transitions. [2023-11-21 21:02:31,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9691085613415711 [2023-11-21 21:02:31,379 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3294 transitions. [2023-11-21 21:02:31,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3294 transitions. [2023-11-21 21:02:31,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:31,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3294 transitions. [2023-11-21 21:02:31,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1098.0) internal successors, (3294), 3 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states 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 21:02:31,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:31,393 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:31,394 INFO L175 Difference]: Start difference. First operand has 1040 places, 1072 transitions, 2154 flow. Second operand 3 states and 3294 transitions. [2023-11-21 21:02:31,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1041 places, 1071 transitions, 2192 flow [2023-11-21 21:02:31,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1039 places, 1071 transitions, 2188 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:31,420 INFO L231 Difference]: Finished difference. Result has 1039 places, 1071 transitions, 2152 flow [2023-11-21 21:02:31,423 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2148, PETRI_DIFFERENCE_MINUEND_PLACES=1037, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1071, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1069, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2152, PETRI_PLACES=1039, PETRI_TRANSITIONS=1071} [2023-11-21 21:02:31,424 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -18 predicate places. [2023-11-21 21:02:31,424 INFO L495 AbstractCegarLoop]: Abstraction has has 1039 places, 1071 transitions, 2152 flow [2023-11-21 21:02:31,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 0 states 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 21:02:31,425 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:31,425 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:31,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 21:02:31,426 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-21 21:02:31,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:31,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1123837388, now seen corresponding path program 1 times [2023-11-21 21:02:31,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:31,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37060723] [2023-11-21 21:02:31,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:31,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:31,491 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 21:02:31,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:31,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37060723] [2023-11-21 21:02:31,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37060723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:31,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:31,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:31,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080998009] [2023-11-21 21:02:31,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:31,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:31,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:31,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:31,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:31,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1094 out of 1133 [2023-11-21 21:02:31,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1039 places, 1071 transitions, 2152 flow. Second operand has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states 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 21:02:31,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:31,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1094 of 1133 [2023-11-21 21:02:31,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:32,567 INFO L124 PetriNetUnfolderBase]: 74/1618 cut-off events. [2023-11-21 21:02:32,568 INFO L125 PetriNetUnfolderBase]: For 15/17 co-relation queries the response was YES. [2023-11-21 21:02:32,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1667 conditions, 1618 events. 74/1618 cut-off events. For 15/17 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 7394 event pairs, 12 based on Foata normal form. 0/1307 useless extension candidates. Maximal degree in co-relation 1538. Up to 40 conditions per place. [2023-11-21 21:02:32,645 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 15 selfloop transitions, 2 changer transitions 0/1070 dead transitions. [2023-11-21 21:02:32,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1040 places, 1070 transitions, 2184 flow [2023-11-21 21:02:32,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:32,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:32,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3300 transitions. [2023-11-21 21:02:32,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.970873786407767 [2023-11-21 21:02:32,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3300 transitions. [2023-11-21 21:02:32,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3300 transitions. [2023-11-21 21:02:32,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:32,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3300 transitions. [2023-11-21 21:02:32,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.0) internal successors, (3300), 3 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states 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 21:02:32,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:32,672 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:32,672 INFO L175 Difference]: Start difference. First operand has 1039 places, 1071 transitions, 2152 flow. Second operand 3 states and 3300 transitions. [2023-11-21 21:02:32,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1040 places, 1070 transitions, 2184 flow [2023-11-21 21:02:32,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1038 places, 1070 transitions, 2180 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:32,699 INFO L231 Difference]: Finished difference. Result has 1038 places, 1070 transitions, 2150 flow [2023-11-21 21:02:32,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2146, PETRI_DIFFERENCE_MINUEND_PLACES=1036, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1070, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1068, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2150, PETRI_PLACES=1038, PETRI_TRANSITIONS=1070} [2023-11-21 21:02:32,703 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -19 predicate places. [2023-11-21 21:02:32,703 INFO L495 AbstractCegarLoop]: Abstraction has has 1038 places, 1070 transitions, 2150 flow [2023-11-21 21:02:32,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states 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 21:02:32,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:32,705 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] [2023-11-21 21:02:32,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 21:02:32,705 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-21 21:02:32,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:32,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1225030870, now seen corresponding path program 1 times [2023-11-21 21:02:32,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:32,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721819755] [2023-11-21 21:02:32,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:32,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:32,801 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 21:02:32,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:32,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721819755] [2023-11-21 21:02:32,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721819755] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:32,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:32,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:32,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971825859] [2023-11-21 21:02:32,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:32,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:32,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:32,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:32,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:32,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1095 out of 1133 [2023-11-21 21:02:32,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1038 places, 1070 transitions, 2150 flow. Second operand has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 0 states 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 21:02:32,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:32,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1095 of 1133 [2023-11-21 21:02:32,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:33,855 INFO L124 PetriNetUnfolderBase]: 48/1169 cut-off events. [2023-11-21 21:02:33,855 INFO L125 PetriNetUnfolderBase]: For 13/15 co-relation queries the response was YES. [2023-11-21 21:02:33,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1213 conditions, 1169 events. 48/1169 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4765 event pairs, 10 based on Foata normal form. 0/972 useless extension candidates. Maximal degree in co-relation 1076. Up to 35 conditions per place. [2023-11-21 21:02:33,920 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 14 selfloop transitions, 2 changer transitions 0/1069 dead transitions. [2023-11-21 21:02:33,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1039 places, 1069 transitions, 2180 flow [2023-11-21 21:02:33,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:33,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:33,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3302 transitions. [2023-11-21 21:02:33,931 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9714621947631656 [2023-11-21 21:02:33,931 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3302 transitions. [2023-11-21 21:02:33,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3302 transitions. [2023-11-21 21:02:33,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:33,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3302 transitions. [2023-11-21 21:02:33,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.6666666666667) internal successors, (3302), 3 states have internal predecessors, (3302), 0 states have call successors, (0), 0 states 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 21:02:33,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:33,945 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:33,945 INFO L175 Difference]: Start difference. First operand has 1038 places, 1070 transitions, 2150 flow. Second operand 3 states and 3302 transitions. [2023-11-21 21:02:33,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1039 places, 1069 transitions, 2180 flow [2023-11-21 21:02:33,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1037 places, 1069 transitions, 2176 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:33,964 INFO L231 Difference]: Finished difference. Result has 1037 places, 1069 transitions, 2148 flow [2023-11-21 21:02:33,967 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2144, PETRI_DIFFERENCE_MINUEND_PLACES=1035, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1069, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1067, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2148, PETRI_PLACES=1037, PETRI_TRANSITIONS=1069} [2023-11-21 21:02:33,967 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -20 predicate places. [2023-11-21 21:02:33,968 INFO L495 AbstractCegarLoop]: Abstraction has has 1037 places, 1069 transitions, 2148 flow [2023-11-21 21:02:33,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 0 states 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 21:02:33,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:33,969 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 21:02:33,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 21:02:33,969 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-21 21:02:33,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:33,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1294198166, now seen corresponding path program 1 times [2023-11-21 21:02:33,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:33,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712709026] [2023-11-21 21:02:33,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:33,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:34,040 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 21:02:34,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:34,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712709026] [2023-11-21 21:02:34,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712709026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:34,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:34,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:34,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607715940] [2023-11-21 21:02:34,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:34,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:34,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:34,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:34,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:34,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1088 out of 1133 [2023-11-21 21:02:34,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1037 places, 1069 transitions, 2148 flow. Second operand has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states 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 21:02:34,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:34,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1088 of 1133 [2023-11-21 21:02:34,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:34,988 INFO L124 PetriNetUnfolderBase]: 86/1616 cut-off events. [2023-11-21 21:02:34,988 INFO L125 PetriNetUnfolderBase]: For 27/29 co-relation queries the response was YES. [2023-11-21 21:02:35,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1695 conditions, 1616 events. 86/1616 cut-off events. For 27/29 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 8518 event pairs, 24 based on Foata normal form. 0/1308 useless extension candidates. Maximal degree in co-relation 1550. Up to 70 conditions per place. [2023-11-21 21:02:35,069 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 21 selfloop transitions, 2 changer transitions 0/1068 dead transitions. [2023-11-21 21:02:35,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1038 places, 1068 transitions, 2192 flow [2023-11-21 21:02:35,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:35,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:35,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3288 transitions. [2023-11-21 21:02:35,082 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9673433362753752 [2023-11-21 21:02:35,082 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3288 transitions. [2023-11-21 21:02:35,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3288 transitions. [2023-11-21 21:02:35,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:35,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3288 transitions. [2023-11-21 21:02:35,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states 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 21:02:35,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:35,099 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:35,099 INFO L175 Difference]: Start difference. First operand has 1037 places, 1069 transitions, 2148 flow. Second operand 3 states and 3288 transitions. [2023-11-21 21:02:35,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1038 places, 1068 transitions, 2192 flow [2023-11-21 21:02:35,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1036 places, 1068 transitions, 2188 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:35,129 INFO L231 Difference]: Finished difference. Result has 1036 places, 1068 transitions, 2146 flow [2023-11-21 21:02:35,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2142, PETRI_DIFFERENCE_MINUEND_PLACES=1034, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1068, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1066, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2146, PETRI_PLACES=1036, PETRI_TRANSITIONS=1068} [2023-11-21 21:02:35,133 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -21 predicate places. [2023-11-21 21:02:35,133 INFO L495 AbstractCegarLoop]: Abstraction has has 1036 places, 1068 transitions, 2146 flow [2023-11-21 21:02:35,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states 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 21:02:35,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:35,135 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] [2023-11-21 21:02:35,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 21:02:35,136 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-21 21:02:35,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:35,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2011635566, now seen corresponding path program 1 times [2023-11-21 21:02:35,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:35,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496282872] [2023-11-21 21:02:35,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:35,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:35,223 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 21:02:35,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:35,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496282872] [2023-11-21 21:02:35,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496282872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:35,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:35,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:35,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475153909] [2023-11-21 21:02:35,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:35,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:35,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:35,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:35,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:35,262 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1097 out of 1133 [2023-11-21 21:02:35,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1036 places, 1068 transitions, 2146 flow. Second operand has 3 states, 3 states have (on average 1098.3333333333333) internal successors, (3295), 3 states have internal predecessors, (3295), 0 states have call successors, (0), 0 states 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 21:02:35,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:35,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1097 of 1133 [2023-11-21 21:02:35,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:36,394 INFO L124 PetriNetUnfolderBase]: 122/2659 cut-off events. [2023-11-21 21:02:36,394 INFO L125 PetriNetUnfolderBase]: For 8/12 co-relation queries the response was YES. [2023-11-21 21:02:36,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2715 conditions, 2659 events. 122/2659 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 14720 event pairs, 15 based on Foata normal form. 0/2134 useless extension candidates. Maximal degree in co-relation 2562. Up to 43 conditions per place. [2023-11-21 21:02:36,512 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 12 selfloop transitions, 2 changer transitions 0/1067 dead transitions. [2023-11-21 21:02:36,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1037 places, 1067 transitions, 2172 flow [2023-11-21 21:02:36,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:36,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:36,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3306 transitions. [2023-11-21 21:02:36,521 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9726390114739629 [2023-11-21 21:02:36,521 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3306 transitions. [2023-11-21 21:02:36,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3306 transitions. [2023-11-21 21:02:36,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:36,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3306 transitions. [2023-11-21 21:02:36,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1102.0) internal successors, (3306), 3 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states 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 21:02:36,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:36,535 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states 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 21:02:36,535 INFO L175 Difference]: Start difference. First operand has 1036 places, 1068 transitions, 2146 flow. Second operand 3 states and 3306 transitions. [2023-11-21 21:02:36,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1037 places, 1067 transitions, 2172 flow [2023-11-21 21:02:36,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1035 places, 1067 transitions, 2168 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:36,558 INFO L231 Difference]: Finished difference. Result has 1035 places, 1067 transitions, 2144 flow [2023-11-21 21:02:36,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2140, PETRI_DIFFERENCE_MINUEND_PLACES=1033, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1067, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1065, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2144, PETRI_PLACES=1035, PETRI_TRANSITIONS=1067} [2023-11-21 21:02:36,561 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -22 predicate places. [2023-11-21 21:02:36,561 INFO L495 AbstractCegarLoop]: Abstraction has has 1035 places, 1067 transitions, 2144 flow [2023-11-21 21:02:36,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1098.3333333333333) internal successors, (3295), 3 states have internal predecessors, (3295), 0 states have call successors, (0), 0 states 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 21:02:36,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:36,563 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] [2023-11-21 21:02:36,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 21:02:36,563 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-21 21:02:36,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:36,564 INFO L85 PathProgramCache]: Analyzing trace with hash 2145302927, now seen corresponding path program 1 times [2023-11-21 21:02:36,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:36,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884108488] [2023-11-21 21:02:36,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:36,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:37,665 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 21:02:37,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:37,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884108488] [2023-11-21 21:02:37,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884108488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:37,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:37,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:02:37,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724091453] [2023-11-21 21:02:37,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:37,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 21:02:37,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:37,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:02:37,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:02:37,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1069 out of 1133 [2023-11-21 21:02:37,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1035 places, 1067 transitions, 2144 flow. Second operand has 6 states, 6 states have (on average 1070.5) internal successors, (6423), 6 states have internal predecessors, (6423), 0 states have call successors, (0), 0 states 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 21:02:37,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:37,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1069 of 1133 [2023-11-21 21:02:37,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand