./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_c138248a-1788-4a3b-bccd-65b13566fd5f/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138248a-1788-4a3b-bccd-65b13566fd5f/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138248a-1788-4a3b-bccd-65b13566fd5f/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138248a-1788-4a3b-bccd-65b13566fd5f/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138248a-1788-4a3b-bccd-65b13566fd5f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138248a-1788-4a3b-bccd-65b13566fd5f/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d6aa6ef36156b11d9501f41a7beea3c182ea6a120d3ddbfd55ede5953f5f6e32 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:44:53,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:44:54,058 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138248a-1788-4a3b-bccd-65b13566fd5f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:44:54,067 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:44:54,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:44:54,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:44:54,109 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:44:54,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:44:54,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:44:54,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:44:54,117 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:44:54,118 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:44:54,119 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:44:54,120 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:44:54,121 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:44:54,121 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:44:54,122 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:44:54,122 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:44:54,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:44:54,123 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:44:54,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:44:54,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:44:54,125 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:44:54,125 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:44:54,126 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:44:54,126 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:44:54,126 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:44:54,127 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:44:54,128 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:44:54,128 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:44:54,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:44:54,130 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:44:54,130 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:44:54,131 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:44:54,131 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:44:54,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:44:54,132 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:44:54,132 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:44:54,132 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:44:54,132 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:44:54,133 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:44:54,148 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_c138248a-1788-4a3b-bccd-65b13566fd5f/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138248a-1788-4a3b-bccd-65b13566fd5f/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6aa6ef36156b11d9501f41a7beea3c182ea6a120d3ddbfd55ede5953f5f6e32 [2023-11-06 22:44:54,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:44:54,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:44:54,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:44:54,513 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:44:54,514 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:44:54,515 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138248a-1788-4a3b-bccd-65b13566fd5f/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2023-11-06 22:44:57,561 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:44:57,758 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:44:57,759 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138248a-1788-4a3b-bccd-65b13566fd5f/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2023-11-06 22:44:57,767 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138248a-1788-4a3b-bccd-65b13566fd5f/bin/uautomizer-verify-WvqO1wxjHP/data/f53f67cec/9dff8775eb0143e6960485091494f440/FLAG9637c156a [2023-11-06 22:44:57,787 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138248a-1788-4a3b-bccd-65b13566fd5f/bin/uautomizer-verify-WvqO1wxjHP/data/f53f67cec/9dff8775eb0143e6960485091494f440 [2023-11-06 22:44:57,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:44:57,791 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:44:57,792 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:44:57,793 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:44:57,798 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:44:57,799 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:57" (1/1) ... [2023-11-06 22:44:57,800 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a4342e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:57, skipping insertion in model container [2023-11-06 22:44:57,800 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:57" (1/1) ... [2023-11-06 22:44:57,827 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:44:58,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:44:58,047 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:44:58,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:44:58,114 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:44:58,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:58 WrapperNode [2023-11-06 22:44:58,114 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:44:58,116 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:44:58,116 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:44:58,116 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:44:58,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:58" (1/1) ... [2023-11-06 22:44:58,144 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:58" (1/1) ... [2023-11-06 22:44:58,207 INFO L138 Inliner]: procedures = 26, calls = 51, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 518 [2023-11-06 22:44:58,208 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:44:58,209 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:44:58,209 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:44:58,209 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:44:58,221 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:58" (1/1) ... [2023-11-06 22:44:58,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:58" (1/1) ... [2023-11-06 22:44:58,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:58" (1/1) ... [2023-11-06 22:44:58,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:58" (1/1) ... [2023-11-06 22:44:58,276 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:58" (1/1) ... [2023-11-06 22:44:58,283 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:58" (1/1) ... [2023-11-06 22:44:58,288 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:58" (1/1) ... [2023-11-06 22:44:58,291 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:58" (1/1) ... [2023-11-06 22:44:58,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:44:58,314 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:44:58,314 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:44:58,315 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:44:58,316 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:58" (1/1) ... [2023-11-06 22:44:58,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:44:58,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138248a-1788-4a3b-bccd-65b13566fd5f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:44:58,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138248a-1788-4a3b-bccd-65b13566fd5f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:44:58,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c138248a-1788-4a3b-bccd-65b13566fd5f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:44:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:44:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:44:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:44:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:44:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:44:58,402 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:44:58,402 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:44:58,403 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:44:58,403 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 22:44:58,403 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 22:44:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:44:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:44:58,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:44:58,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:44:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:44:58,408 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:44:58,586 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:44:58,588 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:44:59,763 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:44:59,778 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:44:59,778 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-06 22:44:59,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:59 BoogieIcfgContainer [2023-11-06 22:44:59,783 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:44:59,786 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:44:59,786 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:44:59,793 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:44:59,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:44:57" (1/3) ... [2023-11-06 22:44:59,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c0071c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:59, skipping insertion in model container [2023-11-06 22:44:59,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:58" (2/3) ... [2023-11-06 22:44:59,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c0071c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:59, skipping insertion in model container [2023-11-06 22:44:59,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:59" (3/3) ... [2023-11-06 22:44:59,799 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-subst.wvr.c [2023-11-06 22:44:59,809 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:44:59,821 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:44:59,822 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 62 error locations. [2023-11-06 22:44:59,823 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:45:00,068 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 22:45:00,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 635 places, 658 transitions, 1337 flow [2023-11-06 22:45:00,518 INFO L124 PetriNetUnfolderBase]: 33/655 cut-off events. [2023-11-06 22:45:00,519 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:45:00,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 668 conditions, 655 events. 33/655 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1533 event pairs, 0 based on Foata normal form. 0/560 useless extension candidates. Maximal degree in co-relation 465. Up to 3 conditions per place. [2023-11-06 22:45:00,543 INFO L82 GeneralOperation]: Start removeDead. Operand has 635 places, 658 transitions, 1337 flow [2023-11-06 22:45:00,564 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 608 places, 629 transitions, 1276 flow [2023-11-06 22:45:00,568 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:45:00,589 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 608 places, 629 transitions, 1276 flow [2023-11-06 22:45:00,593 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 608 places, 629 transitions, 1276 flow [2023-11-06 22:45:00,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 608 places, 629 transitions, 1276 flow [2023-11-06 22:45:00,774 INFO L124 PetriNetUnfolderBase]: 31/629 cut-off events. [2023-11-06 22:45:00,774 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:45:00,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 642 conditions, 629 events. 31/629 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1510 event pairs, 0 based on Foata normal form. 0/537 useless extension candidates. Maximal degree in co-relation 465. Up to 3 conditions per place. [2023-11-06 22:45:00,834 INFO L119 LiptonReduction]: Number of co-enabled transitions 94392 [2023-11-06 22:45:17,193 INFO L134 LiptonReduction]: Checked pairs total: 555772 [2023-11-06 22:45:17,193 INFO L136 LiptonReduction]: Total number of compositions: 557 [2023-11-06 22:45:17,221 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:45:17,228 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@489ceae3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:45:17,228 INFO L358 AbstractCegarLoop]: Starting to check reachability of 107 error locations. [2023-11-06 22:45:17,230 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:45:17,230 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:45:17,230 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:45:17,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:45:17,231 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:45:17,231 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-11-06 22:45:17,236 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:17,237 INFO L85 PathProgramCache]: Analyzing trace with hash 2349, now seen corresponding path program 1 times [2023-11-06 22:45:17,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:17,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353384838] [2023-11-06 22:45:17,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:17,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:17,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:45:17,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:17,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353384838] [2023-11-06 22:45:17,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353384838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:17,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:17,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:45:17,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118657354] [2023-11-06 22:45:17,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:17,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:45:17,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:17,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:45:17,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:45:17,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 631 out of 1215 [2023-11-06 22:45:17,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 220 transitions, 458 flow. Second operand has 2 states, 2 states have (on average 631.5) internal successors, (1263), 2 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:17,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:45:17,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 631 of 1215 [2023-11-06 22:45:17,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:45:21,799 INFO L124 PetriNetUnfolderBase]: 8874/29463 cut-off events. [2023-11-06 22:45:21,800 INFO L125 PetriNetUnfolderBase]: For 561/651 co-relation queries the response was YES. [2023-11-06 22:45:21,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41728 conditions, 29463 events. 8874/29463 cut-off events. For 561/651 co-relation queries the response was YES. Maximal size of possible extension queue 813. Compared 357200 event pairs, 6465 based on Foata normal form. 2276/26309 useless extension candidates. Maximal degree in co-relation 38229. Up to 11906 conditions per place. [2023-11-06 22:45:22,132 INFO L140 encePairwiseOnDemand]: 1189/1215 looper letters, 56 selfloop transitions, 0 changer transitions 1/194 dead transitions. [2023-11-06 22:45:22,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 194 transitions, 520 flow [2023-11-06 22:45:22,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:45:22,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:45:22,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1345 transitions. [2023-11-06 22:45:22,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5534979423868313 [2023-11-06 22:45:22,164 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1345 transitions. [2023-11-06 22:45:22,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1345 transitions. [2023-11-06 22:45:22,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:45:22,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1345 transitions. [2023-11-06 22:45:22,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 672.5) internal successors, (1345), 2 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:22,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1215.0) internal successors, (3645), 3 states have internal predecessors, (3645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:22,202 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1215.0) internal successors, (3645), 3 states have internal predecessors, (3645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:22,204 INFO L175 Difference]: Start difference. First operand has 215 places, 220 transitions, 458 flow. Second operand 2 states and 1345 transitions. [2023-11-06 22:45:22,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 194 transitions, 520 flow [2023-11-06 22:45:22,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 194 transitions, 508 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 22:45:22,226 INFO L231 Difference]: Finished difference. Result has 187 places, 193 transitions, 391 flow [2023-11-06 22:45:22,229 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1215, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=391, PETRI_PLACES=187, PETRI_TRANSITIONS=193} [2023-11-06 22:45:22,234 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -28 predicate places. [2023-11-06 22:45:22,234 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 193 transitions, 391 flow [2023-11-06 22:45:22,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 631.5) internal successors, (1263), 2 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:22,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:45:22,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:45:22,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:45:22,237 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-11-06 22:45:22,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:22,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1893077408, now seen corresponding path program 1 times [2023-11-06 22:45:22,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:22,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669090525] [2023-11-06 22:45:22,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:22,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:22,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:45:22,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:22,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669090525] [2023-11-06 22:45:22,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669090525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:22,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:22,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:45:22,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771847581] [2023-11-06 22:45:22,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:22,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:45:22,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:22,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:45:22,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:45:22,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 1215 [2023-11-06 22:45:22,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 193 transitions, 391 flow. Second operand has 3 states, 3 states have (on average 617.3333333333334) internal successors, (1852), 3 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:22,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:45:22,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 1215 [2023-11-06 22:45:22,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:45:27,267 INFO L124 PetriNetUnfolderBase]: 12514/38915 cut-off events. [2023-11-06 22:45:27,267 INFO L125 PetriNetUnfolderBase]: For 170/322 co-relation queries the response was YES. [2023-11-06 22:45:27,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55926 conditions, 38915 events. 12514/38915 cut-off events. For 170/322 co-relation queries the response was YES. Maximal size of possible extension queue 1032. Compared 472567 event pairs, 9481 based on Foata normal form. 0/32272 useless extension candidates. Maximal degree in co-relation 55923. Up to 16864 conditions per place. [2023-11-06 22:45:27,610 INFO L140 encePairwiseOnDemand]: 1210/1215 looper letters, 59 selfloop transitions, 1 changer transitions 0/189 dead transitions. [2023-11-06 22:45:27,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 189 transitions, 503 flow [2023-11-06 22:45:27,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:45:27,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:45:27,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1909 transitions. [2023-11-06 22:45:27,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5237311385459533 [2023-11-06 22:45:27,620 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1909 transitions. [2023-11-06 22:45:27,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1909 transitions. [2023-11-06 22:45:27,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:45:27,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1909 transitions. [2023-11-06 22:45:27,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 636.3333333333334) internal successors, (1909), 3 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:27,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1215.0) internal successors, (4860), 4 states have internal predecessors, (4860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:27,646 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1215.0) internal successors, (4860), 4 states have internal predecessors, (4860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:27,647 INFO L175 Difference]: Start difference. First operand has 187 places, 193 transitions, 391 flow. Second operand 3 states and 1909 transitions. [2023-11-06 22:45:27,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 189 transitions, 503 flow [2023-11-06 22:45:27,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 189 transitions, 503 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:45:27,655 INFO L231 Difference]: Finished difference. Result has 184 places, 189 transitions, 385 flow [2023-11-06 22:45:27,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1215, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=385, PETRI_PLACES=184, PETRI_TRANSITIONS=189} [2023-11-06 22:45:27,658 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -31 predicate places. [2023-11-06 22:45:27,658 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 189 transitions, 385 flow [2023-11-06 22:45:27,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 617.3333333333334) internal successors, (1852), 3 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:27,666 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:45:27,666 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:45:27,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:45:27,667 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-11-06 22:45:27,668 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:27,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1818696798, now seen corresponding path program 1 times [2023-11-06 22:45:27,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:27,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174211398] [2023-11-06 22:45:27,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:27,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:27,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:45:27,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:27,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174211398] [2023-11-06 22:45:27,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174211398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:27,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:27,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:45:27,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242325003] [2023-11-06 22:45:27,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:27,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:45:27,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:27,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:45:27,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:45:27,832 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 1215 [2023-11-06 22:45:27,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 189 transitions, 385 flow. Second operand has 3 states, 3 states have (on average 617.6666666666666) internal successors, (1853), 3 states have internal predecessors, (1853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:27,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:45:27,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 1215 [2023-11-06 22:45:27,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:45:31,489 INFO L124 PetriNetUnfolderBase]: 11918/37347 cut-off events. [2023-11-06 22:45:31,490 INFO L125 PetriNetUnfolderBase]: For 171/378 co-relation queries the response was YES. [2023-11-06 22:45:31,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53510 conditions, 37347 events. 11918/37347 cut-off events. For 171/378 co-relation queries the response was YES. Maximal size of possible extension queue 1022. Compared 456768 event pairs, 8945 based on Foata normal form. 0/30775 useless extension candidates. Maximal degree in co-relation 53506. Up to 16034 conditions per place. [2023-11-06 22:45:31,748 INFO L140 encePairwiseOnDemand]: 1210/1215 looper letters, 59 selfloop transitions, 1 changer transitions 0/185 dead transitions. [2023-11-06 22:45:31,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 185 transitions, 497 flow [2023-11-06 22:45:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:45:31,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:45:31,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1909 transitions. [2023-11-06 22:45:31,756 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5237311385459533 [2023-11-06 22:45:31,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1909 transitions. [2023-11-06 22:45:31,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1909 transitions. [2023-11-06 22:45:31,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:45:31,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1909 transitions. [2023-11-06 22:45:31,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 636.3333333333334) internal successors, (1909), 3 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:31,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1215.0) internal successors, (4860), 4 states have internal predecessors, (4860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:31,778 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1215.0) internal successors, (4860), 4 states have internal predecessors, (4860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:31,778 INFO L175 Difference]: Start difference. First operand has 184 places, 189 transitions, 385 flow. Second operand 3 states and 1909 transitions. [2023-11-06 22:45:31,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 185 transitions, 497 flow [2023-11-06 22:45:31,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 185 transitions, 496 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:45:31,786 INFO L231 Difference]: Finished difference. Result has 181 places, 185 transitions, 378 flow [2023-11-06 22:45:31,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1215, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=181, PETRI_TRANSITIONS=185} [2023-11-06 22:45:31,788 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -34 predicate places. [2023-11-06 22:45:31,788 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 185 transitions, 378 flow [2023-11-06 22:45:31,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 617.6666666666666) internal successors, (1853), 3 states have internal predecessors, (1853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:31,790 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:45:31,790 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:45:31,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:45:31,795 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-11-06 22:45:31,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:31,796 INFO L85 PathProgramCache]: Analyzing trace with hash 845011489, now seen corresponding path program 1 times [2023-11-06 22:45:31,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:31,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683526272] [2023-11-06 22:45:31,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:31,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:45:31,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:31,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683526272] [2023-11-06 22:45:31,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683526272] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:31,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:31,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:45:31,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357405167] [2023-11-06 22:45:31,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:31,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:45:31,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:31,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:45:31,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:45:31,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 1215 [2023-11-06 22:45:31,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 185 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 618.3333333333334) internal successors, (1855), 3 states have internal predecessors, (1855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:31,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:45:31,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 1215 [2023-11-06 22:45:31,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:45:35,418 INFO L124 PetriNetUnfolderBase]: 10321/32751 cut-off events. [2023-11-06 22:45:35,418 INFO L125 PetriNetUnfolderBase]: For 173/327 co-relation queries the response was YES. [2023-11-06 22:45:35,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46737 conditions, 32751 events. 10321/32751 cut-off events. For 173/327 co-relation queries the response was YES. Maximal size of possible extension queue 906. Compared 396468 event pairs, 7636 based on Foata normal form. 0/26871 useless extension candidates. Maximal degree in co-relation 46733. Up to 13867 conditions per place. [2023-11-06 22:45:35,621 INFO L140 encePairwiseOnDemand]: 1210/1215 looper letters, 57 selfloop transitions, 1 changer transitions 0/181 dead transitions. [2023-11-06 22:45:35,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 181 transitions, 486 flow [2023-11-06 22:45:35,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:45:35,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:45:35,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1907 transitions. [2023-11-06 22:45:35,629 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5231824417009602 [2023-11-06 22:45:35,629 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1907 transitions. [2023-11-06 22:45:35,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1907 transitions. [2023-11-06 22:45:35,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:45:35,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1907 transitions. [2023-11-06 22:45:35,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 635.6666666666666) internal successors, (1907), 3 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:35,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1215.0) internal successors, (4860), 4 states have internal predecessors, (4860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:35,648 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1215.0) internal successors, (4860), 4 states have internal predecessors, (4860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:35,648 INFO L175 Difference]: Start difference. First operand has 181 places, 185 transitions, 378 flow. Second operand 3 states and 1907 transitions. [2023-11-06 22:45:35,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 181 transitions, 486 flow [2023-11-06 22:45:35,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 181 transitions, 485 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:45:35,653 INFO L231 Difference]: Finished difference. Result has 178 places, 181 transitions, 371 flow [2023-11-06 22:45:35,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1215, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=371, PETRI_PLACES=178, PETRI_TRANSITIONS=181} [2023-11-06 22:45:35,654 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -37 predicate places. [2023-11-06 22:45:35,654 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 181 transitions, 371 flow [2023-11-06 22:45:35,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 618.3333333333334) internal successors, (1855), 3 states have internal predecessors, (1855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:35,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:45:35,656 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:45:35,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:45:35,657 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-11-06 22:45:35,657 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:35,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1133961597, now seen corresponding path program 1 times [2023-11-06 22:45:35,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:35,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963980460] [2023-11-06 22:45:35,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:35,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:35,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:45:35,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:35,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963980460] [2023-11-06 22:45:35,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963980460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:35,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:35,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:45:35,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978017702] [2023-11-06 22:45:35,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:35,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:45:35,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:35,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:45:35,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:45:35,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 623 out of 1215 [2023-11-06 22:45:35,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 181 transitions, 371 flow. Second operand has 3 states, 3 states have (on average 626.0) internal successors, (1878), 3 states have internal predecessors, (1878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:35,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:45:35,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 623 of 1215 [2023-11-06 22:45:35,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:45:38,996 INFO L124 PetriNetUnfolderBase]: 9716/30436 cut-off events. [2023-11-06 22:45:38,996 INFO L125 PetriNetUnfolderBase]: For 154/154 co-relation queries the response was YES. [2023-11-06 22:45:39,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43602 conditions, 30436 events. 9716/30436 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 804. Compared 360743 event pairs, 6465 based on Foata normal form. 0/24880 useless extension candidates. Maximal degree in co-relation 43598. Up to 11905 conditions per place. [2023-11-06 22:45:39,208 INFO L140 encePairwiseOnDemand]: 1212/1215 looper letters, 88 selfloop transitions, 2 changer transitions 0/215 dead transitions. [2023-11-06 22:45:39,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 215 transitions, 621 flow [2023-11-06 22:45:39,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:45:39,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:45:39,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1960 transitions. [2023-11-06 22:45:39,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5377229080932785 [2023-11-06 22:45:39,218 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1960 transitions. [2023-11-06 22:45:39,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1960 transitions. [2023-11-06 22:45:39,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:45:39,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1960 transitions. [2023-11-06 22:45:39,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 653.3333333333334) internal successors, (1960), 3 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:39,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1215.0) internal successors, (4860), 4 states have internal predecessors, (4860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:39,240 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1215.0) internal successors, (4860), 4 states have internal predecessors, (4860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:39,241 INFO L175 Difference]: Start difference. First operand has 178 places, 181 transitions, 371 flow. Second operand 3 states and 1960 transitions. [2023-11-06 22:45:39,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 215 transitions, 621 flow [2023-11-06 22:45:39,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 215 transitions, 620 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:45:39,247 INFO L231 Difference]: Finished difference. Result has 180 places, 182 transitions, 382 flow [2023-11-06 22:45:39,248 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1215, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=382, PETRI_PLACES=180, PETRI_TRANSITIONS=182} [2023-11-06 22:45:39,249 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -35 predicate places. [2023-11-06 22:45:39,249 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 182 transitions, 382 flow [2023-11-06 22:45:39,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 626.0) internal successors, (1878), 3 states have internal predecessors, (1878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:39,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:45:39,250 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:45:39,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:45:39,251 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-11-06 22:45:39,251 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:39,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1275150378, now seen corresponding path program 1 times [2023-11-06 22:45:39,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:39,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381730678] [2023-11-06 22:45:39,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:39,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:39,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:45:39,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:39,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381730678] [2023-11-06 22:45:39,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381730678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:39,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:39,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:45:39,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606219230] [2023-11-06 22:45:39,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:39,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:45:39,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:39,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:45:39,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:45:40,825 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 609 out of 1215 [2023-11-06 22:45:40,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 182 transitions, 382 flow. Second operand has 6 states, 6 states have (on average 611.3333333333334) internal successors, (3668), 6 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:40,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:45:40,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 609 of 1215 [2023-11-06 22:45:40,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:45:46,024 INFO L124 PetriNetUnfolderBase]: 29556/50274 cut-off events. [2023-11-06 22:45:46,024 INFO L125 PetriNetUnfolderBase]: For 4322/4322 co-relation queries the response was YES. [2023-11-06 22:45:46,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93191 conditions, 50274 events. 29556/50274 cut-off events. For 4322/4322 co-relation queries the response was YES. Maximal size of possible extension queue 1399. Compared 432342 event pairs, 2799 based on Foata normal form. 0/40573 useless extension candidates. Maximal degree in co-relation 93186. Up to 13716 conditions per place. [2023-11-06 22:45:46,404 INFO L140 encePairwiseOnDemand]: 1210/1215 looper letters, 217 selfloop transitions, 4 changer transitions 0/341 dead transitions. [2023-11-06 22:45:46,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 341 transitions, 1182 flow [2023-11-06 22:45:46,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:45:46,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:45:46,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3871 transitions. [2023-11-06 22:45:46,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5310013717421125 [2023-11-06 22:45:46,421 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3871 transitions. [2023-11-06 22:45:46,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3871 transitions. [2023-11-06 22:45:46,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:45:46,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3871 transitions. [2023-11-06 22:45:46,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 645.1666666666666) internal successors, (3871), 6 states have internal predecessors, (3871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:46,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1215.0) internal successors, (8505), 7 states have internal predecessors, (8505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:46,455 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1215.0) internal successors, (8505), 7 states have internal predecessors, (8505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:46,455 INFO L175 Difference]: Start difference. First operand has 180 places, 182 transitions, 382 flow. Second operand 6 states and 3871 transitions. [2023-11-06 22:45:46,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 341 transitions, 1182 flow [2023-11-06 22:45:46,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 341 transitions, 1172 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:45:46,466 INFO L231 Difference]: Finished difference. Result has 183 places, 181 transitions, 386 flow [2023-11-06 22:45:46,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1215, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=386, PETRI_PLACES=183, PETRI_TRANSITIONS=181} [2023-11-06 22:45:46,467 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -32 predicate places. [2023-11-06 22:45:46,467 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 181 transitions, 386 flow [2023-11-06 22:45:46,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 611.3333333333334) internal successors, (3668), 6 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:46,469 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:45:46,469 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:45:46,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:45:46,470 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-11-06 22:45:46,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:46,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1163936933, now seen corresponding path program 1 times [2023-11-06 22:45:46,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:46,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033131188] [2023-11-06 22:45:46,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:46,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:46,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:45:46,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:46,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033131188] [2023-11-06 22:45:46,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033131188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:46,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:46,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:45:46,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396209969] [2023-11-06 22:45:46,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:46,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:45:46,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:46,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:45:46,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:45:46,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 1215 [2023-11-06 22:45:46,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 181 transitions, 386 flow. Second operand has 3 states, 3 states have (on average 621.6666666666666) internal successors, (1865), 3 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:46,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:45:46,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 1215 [2023-11-06 22:45:46,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:45:51,589 INFO L124 PetriNetUnfolderBase]: 17934/48711 cut-off events. [2023-11-06 22:45:51,589 INFO L125 PetriNetUnfolderBase]: For 4449/4513 co-relation queries the response was YES. [2023-11-06 22:45:51,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78188 conditions, 48711 events. 17934/48711 cut-off events. For 4449/4513 co-relation queries the response was YES. Maximal size of possible extension queue 1125. Compared 575440 event pairs, 4097 based on Foata normal form. 0/41590 useless extension candidates. Maximal degree in co-relation 78183. Up to 18226 conditions per place. [2023-11-06 22:45:51,876 INFO L140 encePairwiseOnDemand]: 1209/1215 looper letters, 100 selfloop transitions, 2 changer transitions 0/218 dead transitions. [2023-11-06 22:45:51,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 218 transitions, 678 flow [2023-11-06 22:45:51,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:45:51,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:45:51,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1958 transitions. [2023-11-06 22:45:51,884 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5371742112482853 [2023-11-06 22:45:51,885 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1958 transitions. [2023-11-06 22:45:51,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1958 transitions. [2023-11-06 22:45:51,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:45:51,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1958 transitions. [2023-11-06 22:45:51,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 652.6666666666666) internal successors, (1958), 3 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:51,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1215.0) internal successors, (4860), 4 states have internal predecessors, (4860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:51,901 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1215.0) internal successors, (4860), 4 states have internal predecessors, (4860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:51,902 INFO L175 Difference]: Start difference. First operand has 183 places, 181 transitions, 386 flow. Second operand 3 states and 1958 transitions. [2023-11-06 22:45:51,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 218 transitions, 678 flow [2023-11-06 22:45:51,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 218 transitions, 669 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:45:51,953 INFO L231 Difference]: Finished difference. Result has 178 places, 179 transitions, 387 flow [2023-11-06 22:45:51,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1215, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=387, PETRI_PLACES=178, PETRI_TRANSITIONS=179} [2023-11-06 22:45:51,955 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -37 predicate places. [2023-11-06 22:45:51,955 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 179 transitions, 387 flow [2023-11-06 22:45:51,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 621.6666666666666) internal successors, (1865), 3 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:51,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:45:51,956 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:45:51,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:45:51,956 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-11-06 22:45:51,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:51,957 INFO L85 PathProgramCache]: Analyzing trace with hash 582816413, now seen corresponding path program 1 times [2023-11-06 22:45:51,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:51,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088433374] [2023-11-06 22:45:51,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:51,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:52,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:45:52,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:52,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088433374] [2023-11-06 22:45:52,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088433374] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:52,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:52,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:45:52,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177658617] [2023-11-06 22:45:52,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:52,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:45:52,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:52,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:45:52,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:45:52,025 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 623 out of 1215 [2023-11-06 22:45:52,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 179 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:52,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:45:52,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 623 of 1215 [2023-11-06 22:45:52,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:45:56,195 INFO L124 PetriNetUnfolderBase]: 15049/41263 cut-off events. [2023-11-06 22:45:56,195 INFO L125 PetriNetUnfolderBase]: For 3910/3968 co-relation queries the response was YES. [2023-11-06 22:45:56,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65579 conditions, 41263 events. 15049/41263 cut-off events. For 3910/3968 co-relation queries the response was YES. Maximal size of possible extension queue 1112. Compared 483831 event pairs, 10393 based on Foata normal form. 0/36235 useless extension candidates. Maximal degree in co-relation 65574. Up to 19055 conditions per place. [2023-11-06 22:45:56,454 INFO L140 encePairwiseOnDemand]: 1212/1215 looper letters, 89 selfloop transitions, 2 changer transitions 0/211 dead transitions. [2023-11-06 22:45:56,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 211 transitions, 655 flow [2023-11-06 22:45:56,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:45:56,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:45:56,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1955 transitions. [2023-11-06 22:45:56,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5363511659807956 [2023-11-06 22:45:56,463 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1955 transitions. [2023-11-06 22:45:56,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1955 transitions. [2023-11-06 22:45:56,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:45:56,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1955 transitions. [2023-11-06 22:45:56,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 651.6666666666666) internal successors, (1955), 3 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:56,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1215.0) internal successors, (4860), 4 states have internal predecessors, (4860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:56,479 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1215.0) internal successors, (4860), 4 states have internal predecessors, (4860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:56,479 INFO L175 Difference]: Start difference. First operand has 178 places, 179 transitions, 387 flow. Second operand 3 states and 1955 transitions. [2023-11-06 22:45:56,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 211 transitions, 655 flow [2023-11-06 22:45:56,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 211 transitions, 655 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:45:56,487 INFO L231 Difference]: Finished difference. Result has 181 places, 180 transitions, 399 flow [2023-11-06 22:45:56,488 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1215, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=399, PETRI_PLACES=181, PETRI_TRANSITIONS=180} [2023-11-06 22:45:56,488 INFO L281 CegarLoopForPetriNet]: 215 programPoint places, -34 predicate places. [2023-11-06 22:45:56,489 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 180 transitions, 399 flow [2023-11-06 22:45:56,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:56,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:45:56,490 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:45:56,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:45:56,490 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-11-06 22:45:56,491 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:56,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1479045138, now seen corresponding path program 1 times [2023-11-06 22:45:56,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:56,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956464373] [2023-11-06 22:45:56,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:56,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:56,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:45:56,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:56,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956464373] [2023-11-06 22:45:56,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956464373] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:56,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:56,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:45:56,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209366591] [2023-11-06 22:45:56,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:56,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:45:56,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:56,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:45:56,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:45:56,805 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 1215 [2023-11-06 22:45:56,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 180 transitions, 399 flow. Second operand has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:45:56,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:45:56,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 1215 [2023-11-06 22:45:56,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand