./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb4de3-321c-4ffb-a555-6fd96bb259a2/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb4de3-321c-4ffb-a555-6fd96bb259a2/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb4de3-321c-4ffb-a555-6fd96bb259a2/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb4de3-321c-4ffb-a555-6fd96bb259a2/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb4de3-321c-4ffb-a555-6fd96bb259a2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb4de3-321c-4ffb-a555-6fd96bb259a2/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5bb11505151393f96d52a572beff0352326876d897656a8082ae272a8f39e0b4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:36:25,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:36:25,744 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb4de3-321c-4ffb-a555-6fd96bb259a2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:36:25,750 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:36:25,750 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:36:25,776 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:36:25,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:36:25,777 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:36:25,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:36:25,778 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:36:25,779 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:36:25,780 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:36:25,780 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:36:25,781 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:36:25,782 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:36:25,782 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:36:25,783 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:36:25,783 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:36:25,784 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:36:25,785 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:36:25,785 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:36:25,786 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:36:25,787 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:36:25,787 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:36:25,788 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:36:25,788 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:36:25,789 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:36:25,789 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:36:25,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:36:25,790 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:36:25,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:25,791 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:36:25,792 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:36:25,792 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:36:25,793 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:36:25,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:36:25,794 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:36:25,794 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:36:25,794 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:36:25,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:36:25,795 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:36:25,796 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_ebbb4de3-321c-4ffb-a555-6fd96bb259a2/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb4de3-321c-4ffb-a555-6fd96bb259a2/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bb11505151393f96d52a572beff0352326876d897656a8082ae272a8f39e0b4 [2023-11-19 07:36:26,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:36:26,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:36:26,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:36:26,080 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:36:26,082 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:36:26,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb4de3-321c-4ffb-a555-6fd96bb259a2/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c [2023-11-19 07:36:29,570 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:36:29,777 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:36:29,778 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb4de3-321c-4ffb-a555-6fd96bb259a2/sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c [2023-11-19 07:36:29,788 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb4de3-321c-4ffb-a555-6fd96bb259a2/bin/uautomizer-verify-uCwYo4JHxu/data/99d2d6079/8c0a5db9b5a742a1a1733a0c82df1116/FLAG4bcac990b [2023-11-19 07:36:29,801 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb4de3-321c-4ffb-a555-6fd96bb259a2/bin/uautomizer-verify-uCwYo4JHxu/data/99d2d6079/8c0a5db9b5a742a1a1733a0c82df1116 [2023-11-19 07:36:29,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:36:29,805 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:36:29,807 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:36:29,807 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:36:29,812 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:36:29,813 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:29" (1/1) ... [2023-11-19 07:36:29,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cffa1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:29, skipping insertion in model container [2023-11-19 07:36:29,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:29" (1/1) ... [2023-11-19 07:36:29,846 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:36:30,084 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:30,093 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:36:30,140 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:30,157 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:36:30,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:30 WrapperNode [2023-11-19 07:36:30,158 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:36:30,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:30,159 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:36:30,159 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:36:30,167 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:30" (1/1) ... [2023-11-19 07:36:30,190 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:30" (1/1) ... [2023-11-19 07:36:30,251 INFO L138 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 517 [2023-11-19 07:36:30,252 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:30,252 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:36:30,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:36:30,253 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:36:30,263 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:30" (1/1) ... [2023-11-19 07:36:30,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:30" (1/1) ... [2023-11-19 07:36:30,279 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:30" (1/1) ... [2023-11-19 07:36:30,279 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:30" (1/1) ... [2023-11-19 07:36:30,325 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:30" (1/1) ... [2023-11-19 07:36:30,335 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:30" (1/1) ... [2023-11-19 07:36:30,347 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:30" (1/1) ... [2023-11-19 07:36:30,351 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:30" (1/1) ... [2023-11-19 07:36:30,358 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:36:30,359 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:36:30,359 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:36:30,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:36:30,360 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:30" (1/1) ... [2023-11-19 07:36:30,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:30,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb4de3-321c-4ffb-a555-6fd96bb259a2/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:30,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb4de3-321c-4ffb-a555-6fd96bb259a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:36:30,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebbb4de3-321c-4ffb-a555-6fd96bb259a2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:36:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:36:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:36:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:36:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:36:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:36:30,438 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:36:30,438 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:36:30,438 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:36:30,438 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 07:36:30,439 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 07:36:30,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:36:30,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:36:30,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:36:30,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:36:30,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:36:30,445 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:36:30,622 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:36:30,624 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:36:31,706 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:36:31,728 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:36:31,729 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-19 07:36:31,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:31 BoogieIcfgContainer [2023-11-19 07:36:31,742 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:36:31,746 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:36:31,746 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:36:31,750 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:36:31,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:36:29" (1/3) ... [2023-11-19 07:36:31,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338eefcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:31, skipping insertion in model container [2023-11-19 07:36:31,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:30" (2/3) ... [2023-11-19 07:36:31,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338eefcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:31, skipping insertion in model container [2023-11-19 07:36:31,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:31" (3/3) ... [2023-11-19 07:36:31,756 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-trans.wvr.c [2023-11-19 07:36:31,769 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:36:31,780 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:36:31,781 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2023-11-19 07:36:31,781 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:36:31,985 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 07:36:32,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 629 places, 652 transitions, 1325 flow [2023-11-19 07:36:32,441 INFO L124 PetriNetUnfolderBase]: 33/649 cut-off events. [2023-11-19 07:36:32,441 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:36:32,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 662 conditions, 649 events. 33/649 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1548 event pairs, 0 based on Foata normal form. 0/556 useless extension candidates. Maximal degree in co-relation 467. Up to 3 conditions per place. [2023-11-19 07:36:32,465 INFO L82 GeneralOperation]: Start removeDead. Operand has 629 places, 652 transitions, 1325 flow [2023-11-19 07:36:32,484 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 601 places, 622 transitions, 1262 flow [2023-11-19 07:36:32,488 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:36:32,503 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 601 places, 622 transitions, 1262 flow [2023-11-19 07:36:32,508 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 601 places, 622 transitions, 1262 flow [2023-11-19 07:36:32,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 601 places, 622 transitions, 1262 flow [2023-11-19 07:36:32,794 INFO L124 PetriNetUnfolderBase]: 31/622 cut-off events. [2023-11-19 07:36:32,795 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:36:32,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 622 events. 31/622 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. 0/532 useless extension candidates. Maximal degree in co-relation 467. Up to 3 conditions per place. [2023-11-19 07:36:32,864 INFO L119 LiptonReduction]: Number of co-enabled transitions 95910 [2023-11-19 07:36:49,503 INFO L134 LiptonReduction]: Checked pairs total: 522273 [2023-11-19 07:36:49,504 INFO L136 LiptonReduction]: Total number of compositions: 547 [2023-11-19 07:36:49,521 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:36:49,528 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4688940e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:36:49,528 INFO L358 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2023-11-19 07:36:49,530 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:36:49,531 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:36:49,531 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:36:49,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:36:49,532 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:36:49,533 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-11-19 07:36:49,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:49,538 INFO L85 PathProgramCache]: Analyzing trace with hash 2358, now seen corresponding path program 1 times [2023-11-19 07:36:49,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:49,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046207475] [2023-11-19 07:36:49,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:49,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:49,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:36:49,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:49,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046207475] [2023-11-19 07:36:49,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046207475] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:49,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:49,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:36:49,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376362607] [2023-11-19 07:36:49,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:49,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:36:49,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:49,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:36:49,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:36:49,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 626 out of 1199 [2023-11-19 07:36:49,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 224 transitions, 466 flow. Second operand has 2 states, 2 states have (on average 626.5) internal successors, (1253), 2 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:49,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:36:49,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 626 of 1199 [2023-11-19 07:36:49,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:36:54,739 INFO L124 PetriNetUnfolderBase]: 9696/29511 cut-off events. [2023-11-19 07:36:54,739 INFO L125 PetriNetUnfolderBase]: For 750/891 co-relation queries the response was YES. [2023-11-19 07:36:54,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42928 conditions, 29511 events. 9696/29511 cut-off events. For 750/891 co-relation queries the response was YES. Maximal size of possible extension queue 649. Compared 340415 event pairs, 7137 based on Foata normal form. 2371/26410 useless extension candidates. Maximal degree in co-relation 38997. Up to 13026 conditions per place. [2023-11-19 07:36:55,113 INFO L140 encePairwiseOnDemand]: 1172/1199 looper letters, 57 selfloop transitions, 0 changer transitions 1/197 dead transitions. [2023-11-19 07:36:55,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 197 transitions, 528 flow [2023-11-19 07:36:55,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:36:55,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:36:55,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1337 transitions. [2023-11-19 07:36:55,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5575479566305255 [2023-11-19 07:36:55,143 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1337 transitions. [2023-11-19 07:36:55,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1337 transitions. [2023-11-19 07:36:55,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:36:55,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1337 transitions. [2023-11-19 07:36:55,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 668.5) internal successors, (1337), 2 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:55,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1199.0) internal successors, (3597), 3 states have internal predecessors, (3597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:55,179 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1199.0) internal successors, (3597), 3 states have internal predecessors, (3597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:55,182 INFO L175 Difference]: Start difference. First operand has 216 places, 224 transitions, 466 flow. Second operand 2 states and 1337 transitions. [2023-11-19 07:36:55,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 197 transitions, 528 flow [2023-11-19 07:36:55,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 197 transitions, 516 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-19 07:36:55,225 INFO L231 Difference]: Finished difference. Result has 190 places, 196 transitions, 397 flow [2023-11-19 07:36:55,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1199, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=397, PETRI_PLACES=190, PETRI_TRANSITIONS=196} [2023-11-19 07:36:55,233 INFO L281 CegarLoopForPetriNet]: 216 programPoint places, -26 predicate places. [2023-11-19 07:36:55,234 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 196 transitions, 397 flow [2023-11-19 07:36:55,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 626.5) internal successors, (1253), 2 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:55,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:36:55,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:55,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:36:55,236 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-11-19 07:36:55,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:55,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1958100068, now seen corresponding path program 1 times [2023-11-19 07:36:55,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:55,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228752095] [2023-11-19 07:36:55,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:55,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:55,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:36:55,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:55,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228752095] [2023-11-19 07:36:55,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228752095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:55,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:55,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:55,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170803451] [2023-11-19 07:36:55,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:55,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:55,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:55,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:55,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:55,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 610 out of 1199 [2023-11-19 07:36:55,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 196 transitions, 397 flow. Second operand has 3 states, 3 states have (on average 612.3333333333334) internal successors, (1837), 3 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:55,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:36:55,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 610 of 1199 [2023-11-19 07:36:55,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:00,025 INFO L124 PetriNetUnfolderBase]: 13022/36522 cut-off events. [2023-11-19 07:37:00,025 INFO L125 PetriNetUnfolderBase]: For 187/430 co-relation queries the response was YES. [2023-11-19 07:37:00,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54204 conditions, 36522 events. 13022/36522 cut-off events. For 187/430 co-relation queries the response was YES. Maximal size of possible extension queue 799. Compared 415676 event pairs, 9875 based on Foata normal form. 0/30169 useless extension candidates. Maximal degree in co-relation 54201. Up to 17546 conditions per place. [2023-11-19 07:37:00,279 INFO L140 encePairwiseOnDemand]: 1194/1199 looper letters, 60 selfloop transitions, 1 changer transitions 0/192 dead transitions. [2023-11-19 07:37:00,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 192 transitions, 511 flow [2023-11-19 07:37:00,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:00,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:37:00,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1895 transitions. [2023-11-19 07:37:00,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.526827912149013 [2023-11-19 07:37:00,289 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1895 transitions. [2023-11-19 07:37:00,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1895 transitions. [2023-11-19 07:37:00,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:00,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1895 transitions. [2023-11-19 07:37:00,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 631.6666666666666) internal successors, (1895), 3 states have internal predecessors, (1895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:00,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1199.0) internal successors, (4796), 4 states have internal predecessors, (4796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:00,312 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1199.0) internal successors, (4796), 4 states have internal predecessors, (4796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:00,312 INFO L175 Difference]: Start difference. First operand has 190 places, 196 transitions, 397 flow. Second operand 3 states and 1895 transitions. [2023-11-19 07:37:00,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 192 transitions, 511 flow [2023-11-19 07:37:00,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 192 transitions, 511 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:37:00,322 INFO L231 Difference]: Finished difference. Result has 187 places, 192 transitions, 391 flow [2023-11-19 07:37:00,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1199, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=391, PETRI_PLACES=187, PETRI_TRANSITIONS=192} [2023-11-19 07:37:00,324 INFO L281 CegarLoopForPetriNet]: 216 programPoint places, -29 predicate places. [2023-11-19 07:37:00,325 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 192 transitions, 391 flow [2023-11-19 07:37:00,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 612.3333333333334) internal successors, (1837), 3 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:00,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:00,333 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:00,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:37:00,334 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-11-19 07:37:00,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:00,338 INFO L85 PathProgramCache]: Analyzing trace with hash 540648829, now seen corresponding path program 1 times [2023-11-19 07:37:00,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:00,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288344091] [2023-11-19 07:37:00,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:00,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:00,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:00,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:00,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288344091] [2023-11-19 07:37:00,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288344091] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:00,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:00,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:00,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273273963] [2023-11-19 07:37:00,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:00,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:00,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:00,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:00,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:00,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 610 out of 1199 [2023-11-19 07:37:00,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 192 transitions, 391 flow. Second operand has 3 states, 3 states have (on average 613.0) internal successors, (1839), 3 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:00,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:00,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 610 of 1199 [2023-11-19 07:37:00,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:04,594 INFO L124 PetriNetUnfolderBase]: 13492/38701 cut-off events. [2023-11-19 07:37:04,594 INFO L125 PetriNetUnfolderBase]: For 196/429 co-relation queries the response was YES. [2023-11-19 07:37:04,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57061 conditions, 38701 events. 13492/38701 cut-off events. For 196/429 co-relation queries the response was YES. Maximal size of possible extension queue 820. Compared 451064 event pairs, 10297 based on Foata normal form. 0/32090 useless extension candidates. Maximal degree in co-relation 57057. Up to 18198 conditions per place. [2023-11-19 07:37:05,032 INFO L140 encePairwiseOnDemand]: 1194/1199 looper letters, 60 selfloop transitions, 1 changer transitions 0/188 dead transitions. [2023-11-19 07:37:05,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 188 transitions, 505 flow [2023-11-19 07:37:05,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:05,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:37:05,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1895 transitions. [2023-11-19 07:37:05,041 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.526827912149013 [2023-11-19 07:37:05,042 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1895 transitions. [2023-11-19 07:37:05,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1895 transitions. [2023-11-19 07:37:05,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:05,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1895 transitions. [2023-11-19 07:37:05,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 631.6666666666666) internal successors, (1895), 3 states have internal predecessors, (1895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:05,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1199.0) internal successors, (4796), 4 states have internal predecessors, (4796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:05,065 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1199.0) internal successors, (4796), 4 states have internal predecessors, (4796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:05,065 INFO L175 Difference]: Start difference. First operand has 187 places, 192 transitions, 391 flow. Second operand 3 states and 1895 transitions. [2023-11-19 07:37:05,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 188 transitions, 505 flow [2023-11-19 07:37:05,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 188 transitions, 504 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:37:05,071 INFO L231 Difference]: Finished difference. Result has 184 places, 188 transitions, 384 flow [2023-11-19 07:37:05,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1199, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=384, PETRI_PLACES=184, PETRI_TRANSITIONS=188} [2023-11-19 07:37:05,073 INFO L281 CegarLoopForPetriNet]: 216 programPoint places, -32 predicate places. [2023-11-19 07:37:05,073 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 188 transitions, 384 flow [2023-11-19 07:37:05,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 613.0) internal successors, (1839), 3 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:05,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:05,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:05,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:37:05,080 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-11-19 07:37:05,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:05,081 INFO L85 PathProgramCache]: Analyzing trace with hash -127467201, now seen corresponding path program 1 times [2023-11-19 07:37:05,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:05,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922141204] [2023-11-19 07:37:05,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:05,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:05,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:05,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:05,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922141204] [2023-11-19 07:37:05,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922141204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:05,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:05,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:37:05,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800729107] [2023-11-19 07:37:05,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:05,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:05,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:05,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:05,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:05,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 610 out of 1199 [2023-11-19 07:37:05,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 188 transitions, 384 flow. Second operand has 3 states, 3 states have (on average 613.3333333333334) internal successors, (1840), 3 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:05,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:05,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 610 of 1199 [2023-11-19 07:37:05,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:08,756 INFO L124 PetriNetUnfolderBase]: 11196/31477 cut-off events. [2023-11-19 07:37:08,757 INFO L125 PetriNetUnfolderBase]: For 189/265 co-relation queries the response was YES. [2023-11-19 07:37:08,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46665 conditions, 31477 events. 11196/31477 cut-off events. For 189/265 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 354312 event pairs, 8355 based on Foata normal form. 0/25830 useless extension candidates. Maximal degree in co-relation 46661. Up to 15060 conditions per place. [2023-11-19 07:37:09,021 INFO L140 encePairwiseOnDemand]: 1194/1199 looper letters, 58 selfloop transitions, 1 changer transitions 0/184 dead transitions. [2023-11-19 07:37:09,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 184 transitions, 494 flow [2023-11-19 07:37:09,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:09,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:37:09,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1893 transitions. [2023-11-19 07:37:09,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5262718932443703 [2023-11-19 07:37:09,029 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1893 transitions. [2023-11-19 07:37:09,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1893 transitions. [2023-11-19 07:37:09,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:09,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1893 transitions. [2023-11-19 07:37:09,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 631.0) internal successors, (1893), 3 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:09,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1199.0) internal successors, (4796), 4 states have internal predecessors, (4796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:09,052 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1199.0) internal successors, (4796), 4 states have internal predecessors, (4796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:09,052 INFO L175 Difference]: Start difference. First operand has 184 places, 188 transitions, 384 flow. Second operand 3 states and 1893 transitions. [2023-11-19 07:37:09,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 184 transitions, 494 flow [2023-11-19 07:37:09,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 184 transitions, 493 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:37:09,057 INFO L231 Difference]: Finished difference. Result has 181 places, 184 transitions, 377 flow [2023-11-19 07:37:09,058 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1199, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=377, PETRI_PLACES=181, PETRI_TRANSITIONS=184} [2023-11-19 07:37:09,060 INFO L281 CegarLoopForPetriNet]: 216 programPoint places, -35 predicate places. [2023-11-19 07:37:09,060 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 184 transitions, 377 flow [2023-11-19 07:37:09,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 613.3333333333334) internal successors, (1840), 3 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:09,062 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:09,062 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:09,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:37:09,063 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-11-19 07:37:09,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:09,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1974161600, now seen corresponding path program 1 times [2023-11-19 07:37:09,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:09,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422785926] [2023-11-19 07:37:09,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:09,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:09,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:09,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:09,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422785926] [2023-11-19 07:37:09,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422785926] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:09,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:09,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:37:09,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387135851] [2023-11-19 07:37:09,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:09,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:09,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:09,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:09,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:09,145 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 1199 [2023-11-19 07:37:09,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 184 transitions, 377 flow. Second operand has 3 states, 3 states have (on average 621.0) internal successors, (1863), 3 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:09,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:09,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 1199 [2023-11-19 07:37:09,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:12,941 INFO L124 PetriNetUnfolderBase]: 10616/31639 cut-off events. [2023-11-19 07:37:12,942 INFO L125 PetriNetUnfolderBase]: For 168/168 co-relation queries the response was YES. [2023-11-19 07:37:13,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46043 conditions, 31639 events. 10616/31639 cut-off events. For 168/168 co-relation queries the response was YES. Maximal size of possible extension queue 692. Compared 365379 event pairs, 7137 based on Foata normal form. 0/25838 useless extension candidates. Maximal degree in co-relation 46039. Up to 13025 conditions per place. [2023-11-19 07:37:13,196 INFO L140 encePairwiseOnDemand]: 1196/1199 looper letters, 90 selfloop transitions, 2 changer transitions 0/219 dead transitions. [2023-11-19 07:37:13,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 219 transitions, 633 flow [2023-11-19 07:37:13,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:37:13,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:37:13,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1947 transitions. [2023-11-19 07:37:13,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5412844036697247 [2023-11-19 07:37:13,205 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1947 transitions. [2023-11-19 07:37:13,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1947 transitions. [2023-11-19 07:37:13,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:13,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1947 transitions. [2023-11-19 07:37:13,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 649.0) internal successors, (1947), 3 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:13,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1199.0) internal successors, (4796), 4 states have internal predecessors, (4796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:13,227 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1199.0) internal successors, (4796), 4 states have internal predecessors, (4796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:13,227 INFO L175 Difference]: Start difference. First operand has 181 places, 184 transitions, 377 flow. Second operand 3 states and 1947 transitions. [2023-11-19 07:37:13,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 219 transitions, 633 flow [2023-11-19 07:37:13,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 219 transitions, 632 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:37:13,234 INFO L231 Difference]: Finished difference. Result has 183 places, 185 transitions, 388 flow [2023-11-19 07:37:13,234 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1199, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=388, PETRI_PLACES=183, PETRI_TRANSITIONS=185} [2023-11-19 07:37:13,238 INFO L281 CegarLoopForPetriNet]: 216 programPoint places, -33 predicate places. [2023-11-19 07:37:13,238 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 185 transitions, 388 flow [2023-11-19 07:37:13,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 621.0) internal successors, (1863), 3 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:13,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:13,240 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:13,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:37:13,240 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-11-19 07:37:13,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:13,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1214746787, now seen corresponding path program 1 times [2023-11-19 07:37:13,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:13,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682946913] [2023-11-19 07:37:13,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:13,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:13,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:13,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:13,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682946913] [2023-11-19 07:37:13,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682946913] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:13,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:13,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:13,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235870867] [2023-11-19 07:37:13,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:13,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:13,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:13,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:13,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:14,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 1199 [2023-11-19 07:37:14,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 185 transitions, 388 flow. Second operand has 6 states, 6 states have (on average 606.3333333333334) internal successors, (3638), 6 states have internal predecessors, (3638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:14,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:14,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 1199 [2023-11-19 07:37:14,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand