./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-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_edbcc567-c2c7-4c8b-8ab1-8177e154c1a5/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcc567-c2c7-4c8b-8ab1-8177e154c1a5/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_edbcc567-c2c7-4c8b-8ab1-8177e154c1a5/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcc567-c2c7-4c8b-8ab1-8177e154c1a5/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcc567-c2c7-4c8b-8ab1-8177e154c1a5/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_edbcc567-c2c7-4c8b-8ab1-8177e154c1a5/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 9cb2b0cbecf02e8cce2fd890595fb88c3204482a27ce7ac6f4ef6fb92949d747 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:14:24,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:14:24,175 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcc567-c2c7-4c8b-8ab1-8177e154c1a5/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:14:24,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:14:24,190 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:14:24,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:14:24,235 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:14:24,236 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:14:24,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:14:24,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:14:24,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:14:24,244 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:14:24,244 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:14:24,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:14:24,247 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:14:24,247 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:14:24,247 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:14:24,248 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:14:24,248 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:14:24,249 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:14:24,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:14:24,250 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:14:24,250 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:14:24,250 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:14:24,251 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:14:24,251 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:14:24,252 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:14:24,252 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:14:24,253 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:14:24,253 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:14:24,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:14:24,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:14:24,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:14:24,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:14:24,256 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:14:24,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:14:24,256 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:14:24,256 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:14:24,256 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:14:24,257 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:14:24,257 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:14:24,257 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_edbcc567-c2c7-4c8b-8ab1-8177e154c1a5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcc567-c2c7-4c8b-8ab1-8177e154c1a5/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cb2b0cbecf02e8cce2fd890595fb88c3204482a27ce7ac6f4ef6fb92949d747 [2023-11-21 22:14:24,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:14:24,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:14:24,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:14:24,534 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:14:24,535 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:14:24,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcc567-c2c7-4c8b-8ab1-8177e154c1a5/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2023-11-21 22:14:27,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:14:28,057 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:14:28,058 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcc567-c2c7-4c8b-8ab1-8177e154c1a5/sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2023-11-21 22:14:28,067 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcc567-c2c7-4c8b-8ab1-8177e154c1a5/bin/uautomizer-verify-bycVGegfSx/data/f09903c43/cf0e9845f97a4ab3ab905318c6109b13/FLAG70b4f2f93 [2023-11-21 22:14:28,087 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcc567-c2c7-4c8b-8ab1-8177e154c1a5/bin/uautomizer-verify-bycVGegfSx/data/f09903c43/cf0e9845f97a4ab3ab905318c6109b13 [2023-11-21 22:14:28,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:14:28,091 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:14:28,093 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:14:28,093 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:14:28,107 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:14:28,110 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:14:28" (1/1) ... [2023-11-21 22:14:28,112 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7116622b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:28, skipping insertion in model container [2023-11-21 22:14:28,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:14:28" (1/1) ... [2023-11-21 22:14:28,163 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:14:28,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:14:28,390 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:14:28,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:14:28,457 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:14:28,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:28 WrapperNode [2023-11-21 22:14:28,458 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:14:28,459 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:14:28,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:14:28,459 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:14:28,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:28" (1/1) ... [2023-11-21 22:14:28,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:28" (1/1) ... [2023-11-21 22:14:28,536 INFO L138 Inliner]: procedures = 25, calls = 45, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 277 [2023-11-21 22:14:28,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:14:28,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:14:28,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:14:28,537 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:14:28,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:28" (1/1) ... [2023-11-21 22:14:28,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:28" (1/1) ... [2023-11-21 22:14:28,562 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:28" (1/1) ... [2023-11-21 22:14:28,562 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:28" (1/1) ... [2023-11-21 22:14:28,608 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:28" (1/1) ... [2023-11-21 22:14:28,646 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:28" (1/1) ... [2023-11-21 22:14:28,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:28" (1/1) ... [2023-11-21 22:14:28,654 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:28" (1/1) ... [2023-11-21 22:14:28,677 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:14:28,678 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:14:28,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:14:28,678 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:14:28,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:28" (1/1) ... [2023-11-21 22:14:28,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:14:28,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcc567-c2c7-4c8b-8ab1-8177e154c1a5/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:28,726 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcc567-c2c7-4c8b-8ab1-8177e154c1a5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:14:28,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edbcc567-c2c7-4c8b-8ab1-8177e154c1a5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:14:28,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:14:28,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:14:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:14:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:14:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 22:14:28,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 22:14:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 22:14:28,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 22:14:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-21 22:14:28,779 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-21 22:14:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:14:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:14:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:14:28,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:14:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:14:28,784 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:14:28,943 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:14:28,946 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:14:30,034 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:14:30,072 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:14:30,079 INFO L308 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-21 22:14:30,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:14:30 BoogieIcfgContainer [2023-11-21 22:14:30,081 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:14:30,084 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:14:30,085 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:14:30,089 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:14:30,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:14:28" (1/3) ... [2023-11-21 22:14:30,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf4b9d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:14:30, skipping insertion in model container [2023-11-21 22:14:30,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:28" (2/3) ... [2023-11-21 22:14:30,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf4b9d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:14:30, skipping insertion in model container [2023-11-21 22:14:30,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:14:30" (3/3) ... [2023-11-21 22:14:30,094 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-trans.wvr.c [2023-11-21 22:14:30,104 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:14:30,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:14:30,116 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2023-11-21 22:14:30,116 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:14:30,390 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-21 22:14:30,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 653 places, 676 transitions, 1373 flow [2023-11-21 22:14:30,870 INFO L124 PetriNetUnfolderBase]: 33/673 cut-off events. [2023-11-21 22:14:30,870 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 22:14:30,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 673 events. 33/673 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1775 event pairs, 0 based on Foata normal form. 0/562 useless extension candidates. Maximal degree in co-relation 493. Up to 3 conditions per place. [2023-11-21 22:14:30,897 INFO L82 GeneralOperation]: Start removeDead. Operand has 653 places, 676 transitions, 1373 flow [2023-11-21 22:14:30,920 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 625 places, 646 transitions, 1310 flow [2023-11-21 22:14:30,938 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:14:30,948 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;@5b9f001a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:14:30,948 INFO L358 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2023-11-21 22:14:30,955 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:14:30,956 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2023-11-21 22:14:30,956 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:14:30,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:14:30,957 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] [2023-11-21 22:14:30,958 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-11-21 22:14:30,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:30,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1738776393, now seen corresponding path program 1 times [2023-11-21 22:14:30,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:30,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365292636] [2023-11-21 22:14:30,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:30,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:31,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:31,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:31,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365292636] [2023-11-21 22:14:31,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365292636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:31,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:31,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:31,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472019155] [2023-11-21 22:14:31,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:31,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:31,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:31,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:31,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:31,391 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 645 out of 676 [2023-11-21 22:14:31,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 625 places, 646 transitions, 1310 flow. Second operand has 3 states, 3 states have (on average 646.3333333333334) internal successors, (1939), 3 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:31,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:14:31,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 645 of 676 [2023-11-21 22:14:31,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:14:31,902 INFO L124 PetriNetUnfolderBase]: 51/1121 cut-off events. [2023-11-21 22:14:31,903 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-11-21 22:14:31,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 1121 events. 51/1121 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5657 event pairs, 12 based on Foata normal form. 30/947 useless extension candidates. Maximal degree in co-relation 839. Up to 38 conditions per place. [2023-11-21 22:14:31,939 INFO L140 encePairwiseOnDemand]: 661/676 looper letters, 13 selfloop transitions, 2 changer transitions 6/633 dead transitions. [2023-11-21 22:14:31,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 626 places, 633 transitions, 1314 flow [2023-11-21 22:14:31,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:31,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:14:31,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1963 transitions. [2023-11-21 22:14:31,966 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.967948717948718 [2023-11-21 22:14:31,967 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1963 transitions. [2023-11-21 22:14:31,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1963 transitions. [2023-11-21 22:14:31,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:14:31,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1963 transitions. [2023-11-21 22:14:31,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 654.3333333333334) internal successors, (1963), 3 states have internal predecessors, (1963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:31,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 676.0) internal successors, (2704), 4 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:31,998 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 676.0) internal successors, (2704), 4 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:32,000 INFO L175 Difference]: Start difference. First operand has 625 places, 646 transitions, 1310 flow. Second operand 3 states and 1963 transitions. [2023-11-21 22:14:32,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 626 places, 633 transitions, 1314 flow [2023-11-21 22:14:32,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 620 places, 633 transitions, 1302 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-21 22:14:32,027 INFO L231 Difference]: Finished difference. Result has 620 places, 627 transitions, 1264 flow [2023-11-21 22:14:32,030 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=676, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=618, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=631, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1264, PETRI_PLACES=620, PETRI_TRANSITIONS=627} [2023-11-21 22:14:32,036 INFO L281 CegarLoopForPetriNet]: 625 programPoint places, -5 predicate places. [2023-11-21 22:14:32,037 INFO L495 AbstractCegarLoop]: Abstraction has has 620 places, 627 transitions, 1264 flow [2023-11-21 22:14:32,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 646.3333333333334) internal successors, (1939), 3 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:32,040 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:14:32,040 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] [2023-11-21 22:14:32,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:14:32,040 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-11-21 22:14:32,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:32,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1655201067, now seen corresponding path program 1 times [2023-11-21 22:14:32,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:32,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301104309] [2023-11-21 22:14:32,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:32,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:32,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:32,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:32,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301104309] [2023-11-21 22:14:32,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301104309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:32,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:32,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:32,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161172632] [2023-11-21 22:14:32,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:32,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:32,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:32,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:32,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:32,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 645 out of 676 [2023-11-21 22:14:32,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 620 places, 627 transitions, 1264 flow. Second operand has 3 states, 3 states have (on average 646.3333333333334) internal successors, (1939), 3 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:32,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:14:32,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 645 of 676 [2023-11-21 22:14:32,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:14:32,720 INFO L124 PetriNetUnfolderBase]: 79/1514 cut-off events. [2023-11-21 22:14:32,720 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-21 22:14:32,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1583 conditions, 1514 events. 79/1514 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 9250 event pairs, 20 based on Foata normal form. 0/1226 useless extension candidates. Maximal degree in co-relation 1546. Up to 50 conditions per place. [2023-11-21 22:14:32,768 INFO L140 encePairwiseOnDemand]: 673/676 looper letters, 13 selfloop transitions, 2 changer transitions 0/626 dead transitions. [2023-11-21 22:14:32,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 615 places, 626 transitions, 1292 flow [2023-11-21 22:14:32,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:32,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:14:32,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1951 transitions. [2023-11-21 22:14:32,777 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620315581854043 [2023-11-21 22:14:32,777 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1951 transitions. [2023-11-21 22:14:32,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1951 transitions. [2023-11-21 22:14:32,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:14:32,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1951 transitions. [2023-11-21 22:14:32,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 650.3333333333334) internal successors, (1951), 3 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:32,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 676.0) internal successors, (2704), 4 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:32,797 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 676.0) internal successors, (2704), 4 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:32,797 INFO L175 Difference]: Start difference. First operand has 620 places, 627 transitions, 1264 flow. Second operand 3 states and 1951 transitions. [2023-11-21 22:14:32,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 615 places, 626 transitions, 1292 flow [2023-11-21 22:14:32,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 613 places, 626 transitions, 1288 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:14:32,817 INFO L231 Difference]: Finished difference. Result has 613 places, 626 transitions, 1262 flow [2023-11-21 22:14:32,818 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=676, PETRI_DIFFERENCE_MINUEND_FLOW=1258, PETRI_DIFFERENCE_MINUEND_PLACES=611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=624, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1262, PETRI_PLACES=613, PETRI_TRANSITIONS=626} [2023-11-21 22:14:32,821 INFO L281 CegarLoopForPetriNet]: 625 programPoint places, -12 predicate places. [2023-11-21 22:14:32,822 INFO L495 AbstractCegarLoop]: Abstraction has has 613 places, 626 transitions, 1262 flow [2023-11-21 22:14:32,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 646.3333333333334) internal successors, (1939), 3 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:32,825 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:14:32,825 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:14:32,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:14:32,826 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-11-21 22:14:32,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:32,826 INFO L85 PathProgramCache]: Analyzing trace with hash 688136627, now seen corresponding path program 1 times [2023-11-21 22:14:32,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:32,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524240078] [2023-11-21 22:14:32,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:32,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:32,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:32,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:32,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524240078] [2023-11-21 22:14:32,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524240078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:32,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:32,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:32,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797395450] [2023-11-21 22:14:32,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:32,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:32,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:32,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:32,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:32,949 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 645 out of 676 [2023-11-21 22:14:32,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 613 places, 626 transitions, 1262 flow. Second operand has 3 states, 3 states have (on average 646.3333333333334) internal successors, (1939), 3 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:32,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:14:32,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 645 of 676 [2023-11-21 22:14:32,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:14:33,420 INFO L124 PetriNetUnfolderBase]: 79/1501 cut-off events. [2023-11-21 22:14:33,420 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-21 22:14:33,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1562 conditions, 1501 events. 79/1501 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 8405 event pairs, 20 based on Foata normal form. 0/1219 useless extension candidates. Maximal degree in co-relation 1517. Up to 50 conditions per place. [2023-11-21 22:14:33,464 INFO L140 encePairwiseOnDemand]: 673/676 looper letters, 13 selfloop transitions, 2 changer transitions 0/625 dead transitions. [2023-11-21 22:14:33,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 614 places, 625 transitions, 1290 flow [2023-11-21 22:14:33,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:33,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:14:33,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1951 transitions. [2023-11-21 22:14:33,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9620315581854043 [2023-11-21 22:14:33,472 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1951 transitions. [2023-11-21 22:14:33,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1951 transitions. [2023-11-21 22:14:33,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:14:33,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1951 transitions. [2023-11-21 22:14:33,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 650.3333333333334) internal successors, (1951), 3 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:33,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 676.0) internal successors, (2704), 4 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:33,490 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 676.0) internal successors, (2704), 4 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:33,490 INFO L175 Difference]: Start difference. First operand has 613 places, 626 transitions, 1262 flow. Second operand 3 states and 1951 transitions. [2023-11-21 22:14:33,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 614 places, 625 transitions, 1290 flow [2023-11-21 22:14:33,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 612 places, 625 transitions, 1286 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:14:33,549 INFO L231 Difference]: Finished difference. Result has 612 places, 625 transitions, 1260 flow [2023-11-21 22:14:33,550 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=676, PETRI_DIFFERENCE_MINUEND_FLOW=1256, PETRI_DIFFERENCE_MINUEND_PLACES=610, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=625, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=623, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1260, PETRI_PLACES=612, PETRI_TRANSITIONS=625} [2023-11-21 22:14:33,551 INFO L281 CegarLoopForPetriNet]: 625 programPoint places, -13 predicate places. [2023-11-21 22:14:33,552 INFO L495 AbstractCegarLoop]: Abstraction has has 612 places, 625 transitions, 1260 flow [2023-11-21 22:14:33,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 646.3333333333334) internal successors, (1939), 3 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:33,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:14:33,554 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] [2023-11-21 22:14:33,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:14:33,554 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-11-21 22:14:33,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:33,555 INFO L85 PathProgramCache]: Analyzing trace with hash -573177674, now seen corresponding path program 1 times [2023-11-21 22:14:33,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:33,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8291417] [2023-11-21 22:14:33,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:33,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:33,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:33,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:33,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8291417] [2023-11-21 22:14:33,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8291417] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:33,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:33,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:33,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577168448] [2023-11-21 22:14:33,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:33,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:33,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:33,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:33,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:33,646 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 644 out of 676 [2023-11-21 22:14:33,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 612 places, 625 transitions, 1260 flow. Second operand has 3 states, 3 states have (on average 645.3333333333334) internal successors, (1936), 3 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:33,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:14:33,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 644 of 676 [2023-11-21 22:14:33,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:14:34,011 INFO L124 PetriNetUnfolderBase]: 51/1152 cut-off events. [2023-11-21 22:14:34,011 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-21 22:14:34,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1204 conditions, 1152 events. 51/1152 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5907 event pairs, 12 based on Foata normal form. 0/956 useless extension candidates. Maximal degree in co-relation 1151. Up to 39 conditions per place. [2023-11-21 22:14:34,045 INFO L140 encePairwiseOnDemand]: 673/676 looper letters, 14 selfloop transitions, 2 changer transitions 0/624 dead transitions. [2023-11-21 22:14:34,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 613 places, 624 transitions, 1290 flow [2023-11-21 22:14:34,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:34,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:14:34,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1949 transitions. [2023-11-21 22:14:34,052 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9610453648915187 [2023-11-21 22:14:34,053 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1949 transitions. [2023-11-21 22:14:34,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1949 transitions. [2023-11-21 22:14:34,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:14:34,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1949 transitions. [2023-11-21 22:14:34,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 649.6666666666666) internal successors, (1949), 3 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:34,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 676.0) internal successors, (2704), 4 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:34,072 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 676.0) internal successors, (2704), 4 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:34,072 INFO L175 Difference]: Start difference. First operand has 612 places, 625 transitions, 1260 flow. Second operand 3 states and 1949 transitions. [2023-11-21 22:14:34,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 613 places, 624 transitions, 1290 flow [2023-11-21 22:14:34,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 611 places, 624 transitions, 1286 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:14:34,090 INFO L231 Difference]: Finished difference. Result has 611 places, 624 transitions, 1258 flow [2023-11-21 22:14:34,091 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=676, PETRI_DIFFERENCE_MINUEND_FLOW=1254, PETRI_DIFFERENCE_MINUEND_PLACES=609, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=624, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=622, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1258, PETRI_PLACES=611, PETRI_TRANSITIONS=624} [2023-11-21 22:14:34,092 INFO L281 CegarLoopForPetriNet]: 625 programPoint places, -14 predicate places. [2023-11-21 22:14:34,093 INFO L495 AbstractCegarLoop]: Abstraction has has 611 places, 624 transitions, 1258 flow [2023-11-21 22:14:34,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 645.3333333333334) internal successors, (1936), 3 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:34,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:14:34,095 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] [2023-11-21 22:14:34,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:14:34,096 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-11-21 22:14:34,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:34,096 INFO L85 PathProgramCache]: Analyzing trace with hash 795348866, now seen corresponding path program 1 times [2023-11-21 22:14:34,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:34,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482870328] [2023-11-21 22:14:34,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:34,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:34,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:34,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:34,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482870328] [2023-11-21 22:14:34,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482870328] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:34,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:34,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:34,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156322011] [2023-11-21 22:14:34,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:34,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:34,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:34,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:34,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:34,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 644 out of 676 [2023-11-21 22:14:34,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 611 places, 624 transitions, 1258 flow. Second operand has 3 states, 3 states have (on average 645.3333333333334) internal successors, (1936), 3 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:34,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:14:34,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 644 of 676 [2023-11-21 22:14:34,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:14:34,771 INFO L124 PetriNetUnfolderBase]: 89/1873 cut-off events. [2023-11-21 22:14:34,771 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-21 22:14:34,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1943 conditions, 1873 events. 89/1873 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 12615 event pairs, 20 based on Foata normal form. 0/1522 useless extension candidates. Maximal degree in co-relation 1882. Up to 51 conditions per place. [2023-11-21 22:14:34,826 INFO L140 encePairwiseOnDemand]: 673/676 looper letters, 14 selfloop transitions, 2 changer transitions 0/623 dead transitions. [2023-11-21 22:14:34,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 612 places, 623 transitions, 1288 flow [2023-11-21 22:14:34,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:34,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:14:34,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1949 transitions. [2023-11-21 22:14:34,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9610453648915187 [2023-11-21 22:14:34,839 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1949 transitions. [2023-11-21 22:14:34,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1949 transitions. [2023-11-21 22:14:34,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:14:34,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1949 transitions. [2023-11-21 22:14:34,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 649.6666666666666) internal successors, (1949), 3 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:34,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 676.0) internal successors, (2704), 4 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:34,857 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 676.0) internal successors, (2704), 4 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:34,857 INFO L175 Difference]: Start difference. First operand has 611 places, 624 transitions, 1258 flow. Second operand 3 states and 1949 transitions. [2023-11-21 22:14:34,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 612 places, 623 transitions, 1288 flow [2023-11-21 22:14:34,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 610 places, 623 transitions, 1284 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:14:34,873 INFO L231 Difference]: Finished difference. Result has 610 places, 623 transitions, 1256 flow [2023-11-21 22:14:34,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=676, PETRI_DIFFERENCE_MINUEND_FLOW=1252, PETRI_DIFFERENCE_MINUEND_PLACES=608, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=623, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=621, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1256, PETRI_PLACES=610, PETRI_TRANSITIONS=623} [2023-11-21 22:14:34,878 INFO L281 CegarLoopForPetriNet]: 625 programPoint places, -15 predicate places. [2023-11-21 22:14:34,878 INFO L495 AbstractCegarLoop]: Abstraction has has 610 places, 623 transitions, 1256 flow [2023-11-21 22:14:34,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 645.3333333333334) internal successors, (1936), 3 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:34,881 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:14:34,881 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] [2023-11-21 22:14:34,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:14:34,882 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-11-21 22:14:34,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:34,883 INFO L85 PathProgramCache]: Analyzing trace with hash 841972817, now seen corresponding path program 1 times [2023-11-21 22:14:34,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:34,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152594652] [2023-11-21 22:14:34,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:34,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:34,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:34,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:34,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152594652] [2023-11-21 22:14:34,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152594652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:34,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:34,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:34,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151054015] [2023-11-21 22:14:34,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:34,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:34,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:34,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:34,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:35,018 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 644 out of 676 [2023-11-21 22:14:35,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 610 places, 623 transitions, 1256 flow. Second operand has 3 states, 3 states have (on average 645.3333333333334) internal successors, (1936), 3 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:35,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:14:35,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 644 of 676 [2023-11-21 22:14:35,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:14:35,319 INFO L124 PetriNetUnfolderBase]: 49/976 cut-off events. [2023-11-21 22:14:35,320 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-21 22:14:35,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1038 conditions, 976 events. 49/976 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4565 event pairs, 20 based on Foata normal form. 0/824 useless extension candidates. Maximal degree in co-relation 969. Up to 51 conditions per place. [2023-11-21 22:14:35,352 INFO L140 encePairwiseOnDemand]: 673/676 looper letters, 14 selfloop transitions, 2 changer transitions 0/622 dead transitions. [2023-11-21 22:14:35,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 611 places, 622 transitions, 1286 flow [2023-11-21 22:14:35,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:35,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:14:35,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1949 transitions. [2023-11-21 22:14:35,359 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9610453648915187 [2023-11-21 22:14:35,359 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1949 transitions. [2023-11-21 22:14:35,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1949 transitions. [2023-11-21 22:14:35,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:14:35,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1949 transitions. [2023-11-21 22:14:35,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 649.6666666666666) internal successors, (1949), 3 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:35,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 676.0) internal successors, (2704), 4 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:35,385 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 676.0) internal successors, (2704), 4 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:35,385 INFO L175 Difference]: Start difference. First operand has 610 places, 623 transitions, 1256 flow. Second operand 3 states and 1949 transitions. [2023-11-21 22:14:35,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 611 places, 622 transitions, 1286 flow [2023-11-21 22:14:35,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 609 places, 622 transitions, 1282 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:14:35,411 INFO L231 Difference]: Finished difference. Result has 609 places, 622 transitions, 1254 flow [2023-11-21 22:14:35,413 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=676, PETRI_DIFFERENCE_MINUEND_FLOW=1250, PETRI_DIFFERENCE_MINUEND_PLACES=607, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=620, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1254, PETRI_PLACES=609, PETRI_TRANSITIONS=622} [2023-11-21 22:14:35,416 INFO L281 CegarLoopForPetriNet]: 625 programPoint places, -16 predicate places. [2023-11-21 22:14:35,417 INFO L495 AbstractCegarLoop]: Abstraction has has 609 places, 622 transitions, 1254 flow [2023-11-21 22:14:35,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 645.3333333333334) internal successors, (1936), 3 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:35,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:14:35,419 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 22:14:35,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:14:35,419 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-11-21 22:14:35,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:35,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1545376931, now seen corresponding path program 1 times [2023-11-21 22:14:35,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:35,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140866692] [2023-11-21 22:14:35,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:35,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:35,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:35,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:35,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140866692] [2023-11-21 22:14:35,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140866692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:35,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:35,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:35,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940308746] [2023-11-21 22:14:35,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:35,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:35,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:35,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:35,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:35,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 640 out of 676 [2023-11-21 22:14:35,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 609 places, 622 transitions, 1254 flow. Second operand has 3 states, 3 states have (on average 641.0) internal successors, (1923), 3 states have internal predecessors, (1923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:35,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:14:35,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 640 of 676 [2023-11-21 22:14:35,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:14:36,021 INFO L124 PetriNetUnfolderBase]: 96/1604 cut-off events. [2023-11-21 22:14:36,021 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-11-21 22:14:36,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1712 conditions, 1604 events. 96/1604 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 9562 event pairs, 32 based on Foata normal form. 0/1332 useless extension candidates. Maximal degree in co-relation 1635. Up to 91 conditions per place. [2023-11-21 22:14:36,070 INFO L140 encePairwiseOnDemand]: 670/676 looper letters, 16 selfloop transitions, 1 changer transitions 0/617 dead transitions. [2023-11-21 22:14:36,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 606 places, 617 transitions, 1278 flow [2023-11-21 22:14:36,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:14:36,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:14:36,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1942 transitions. [2023-11-21 22:14:36,077 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9575936883629191 [2023-11-21 22:14:36,077 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1942 transitions. [2023-11-21 22:14:36,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1942 transitions. [2023-11-21 22:14:36,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:14:36,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1942 transitions. [2023-11-21 22:14:36,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 647.3333333333334) internal successors, (1942), 3 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:36,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 676.0) internal successors, (2704), 4 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:36,092 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 676.0) internal successors, (2704), 4 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:36,092 INFO L175 Difference]: Start difference. First operand has 609 places, 622 transitions, 1254 flow. Second operand 3 states and 1942 transitions. [2023-11-21 22:14:36,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 606 places, 617 transitions, 1278 flow [2023-11-21 22:14:36,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 604 places, 617 transitions, 1274 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:14:36,109 INFO L231 Difference]: Finished difference. Result has 604 places, 617 transitions, 1242 flow [2023-11-21 22:14:36,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=676, PETRI_DIFFERENCE_MINUEND_FLOW=1240, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1242, PETRI_PLACES=604, PETRI_TRANSITIONS=617} [2023-11-21 22:14:36,111 INFO L281 CegarLoopForPetriNet]: 625 programPoint places, -21 predicate places. [2023-11-21 22:14:36,112 INFO L495 AbstractCegarLoop]: Abstraction has has 604 places, 617 transitions, 1242 flow [2023-11-21 22:14:36,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 641.0) internal successors, (1923), 3 states have internal predecessors, (1923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:36,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:14:36,113 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] [2023-11-21 22:14:36,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:14:36,114 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2023-11-21 22:14:36,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:36,114 INFO L85 PathProgramCache]: Analyzing trace with hash -431287402, now seen corresponding path program 1 times [2023-11-21 22:14:36,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:36,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960957533] [2023-11-21 22:14:36,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:36,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:36,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:36,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:36,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960957533] [2023-11-21 22:14:36,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960957533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:36,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:36,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:14:36,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549594723] [2023-11-21 22:14:36,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:36,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:14:36,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:36,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:14:36,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:14:37,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 554 out of 676 [2023-11-21 22:14:37,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 604 places, 617 transitions, 1242 flow. Second operand has 6 states, 6 states have (on average 555.5) internal successors, (3333), 6 states have internal predecessors, (3333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:14:37,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:14:37,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 554 of 676 [2023-11-21 22:14:37,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand