./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 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_d2b9141a-7422-475e-b2b9-d89d1c7f8d78/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b9141a-7422-475e-b2b9-d89d1c7f8d78/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b9141a-7422-475e-b2b9-d89d1c7f8d78/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b9141a-7422-475e-b2b9-d89d1c7f8d78/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b9141a-7422-475e-b2b9-d89d1c7f8d78/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b9141a-7422-475e-b2b9-d89d1c7f8d78/bin/uautomizer-verify-zZY32mL2XJ --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 c9008ebcceff34245d74f1892a84a552f8268a9318e8a2970f14b3ec6b594daf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:34:38,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:34:39,000 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b9141a-7422-475e-b2b9-d89d1c7f8d78/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 21:34:39,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:34:39,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:34:39,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:34:39,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:34:39,036 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:34:39,037 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:34:39,042 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:34:39,044 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:34:39,045 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:34:39,045 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:34:39,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:34:39,048 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:34:39,048 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:34:39,049 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:34:39,049 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:34:39,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:34:39,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:34:39,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:34:39,051 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:34:39,052 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 21:34:39,052 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:34:39,053 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:34:39,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:34:39,054 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:34:39,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:34:39,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:34:39,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:34:39,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:34:39,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:34:39,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:34:39,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:34:39,059 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:34:39,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:34:39,059 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:34:39,060 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:34:39,060 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:34:39,060 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:34:39,060 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:34:39,061 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_d2b9141a-7422-475e-b2b9-d89d1c7f8d78/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b9141a-7422-475e-b2b9-d89d1c7f8d78/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9008ebcceff34245d74f1892a84a552f8268a9318e8a2970f14b3ec6b594daf [2023-11-23 21:34:39,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:34:39,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:34:39,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:34:39,439 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:34:39,440 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:34:39,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b9141a-7422-475e-b2b9-d89d1c7f8d78/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2023-11-23 21:34:42,859 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:34:43,147 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:34:43,148 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b9141a-7422-475e-b2b9-d89d1c7f8d78/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2023-11-23 21:34:43,161 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b9141a-7422-475e-b2b9-d89d1c7f8d78/bin/uautomizer-verify-zZY32mL2XJ/data/fa20278b4/d608c11938fb436ca8bfeffa855413c9/FLAGeed2e2c0f [2023-11-23 21:34:43,178 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b9141a-7422-475e-b2b9-d89d1c7f8d78/bin/uautomizer-verify-zZY32mL2XJ/data/fa20278b4/d608c11938fb436ca8bfeffa855413c9 [2023-11-23 21:34:43,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:34:43,185 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:34:43,191 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:34:43,191 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:34:43,196 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:34:43,199 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:34:43" (1/1) ... [2023-11-23 21:34:43,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f633dce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:43, skipping insertion in model container [2023-11-23 21:34:43,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:34:43" (1/1) ... [2023-11-23 21:34:43,245 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:34:43,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:34:43,570 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:34:43,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:34:43,646 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:34:43,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:43 WrapperNode [2023-11-23 21:34:43,646 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:34:43,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:34:43,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:34:43,648 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:34:43,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:43" (1/1) ... [2023-11-23 21:34:43,674 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:43" (1/1) ... [2023-11-23 21:34:43,759 INFO L138 Inliner]: procedures = 27, calls = 67, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 823 [2023-11-23 21:34:43,759 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:34:43,760 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:34:43,760 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:34:43,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:34:43,770 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:43" (1/1) ... [2023-11-23 21:34:43,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:43" (1/1) ... [2023-11-23 21:34:43,782 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:43" (1/1) ... [2023-11-23 21:34:43,783 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:43" (1/1) ... [2023-11-23 21:34:43,818 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:43" (1/1) ... [2023-11-23 21:34:43,830 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:43" (1/1) ... [2023-11-23 21:34:43,851 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:43" (1/1) ... [2023-11-23 21:34:43,856 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:43" (1/1) ... [2023-11-23 21:34:43,864 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:34:43,865 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:34:43,865 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:34:43,866 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:34:43,880 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:43" (1/1) ... [2023-11-23 21:34:43,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:34:43,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b9141a-7422-475e-b2b9-d89d1c7f8d78/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:34:43,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b9141a-7422-475e-b2b9-d89d1c7f8d78/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:34:43,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2b9141a-7422-475e-b2b9-d89d1c7f8d78/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:34:43,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:34:43,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:34:43,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:34:43,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:34:44,000 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 21:34:44,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 21:34:44,000 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 21:34:44,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 21:34:44,000 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-23 21:34:44,001 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-23 21:34:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:34:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:34:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:34:44,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:34:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:34:44,006 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 21:34:44,263 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:34:44,266 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:34:45,542 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:34:45,588 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:34:45,589 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-23 21:34:45,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:34:45 BoogieIcfgContainer [2023-11-23 21:34:45,591 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:34:45,593 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:34:45,593 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:34:45,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:34:45,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:34:43" (1/3) ... [2023-11-23 21:34:45,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd288bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:34:45, skipping insertion in model container [2023-11-23 21:34:45,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:43" (2/3) ... [2023-11-23 21:34:45,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd288bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:34:45, skipping insertion in model container [2023-11-23 21:34:45,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:34:45" (3/3) ... [2023-11-23 21:34:45,599 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2023-11-23 21:34:45,609 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 21:34:45,620 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:34:45,620 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 117 error locations. [2023-11-23 21:34:45,620 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 21:34:45,833 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-23 21:34:45,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1037 places, 1075 transitions, 2171 flow [2023-11-23 21:34:46,503 INFO L124 PetriNetUnfolderBase]: 48/1072 cut-off events. [2023-11-23 21:34:46,503 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-23 21:34:46,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1085 conditions, 1072 events. 48/1072 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2218 event pairs, 0 based on Foata normal form. 0/907 useless extension candidates. Maximal degree in co-relation 852. Up to 2 conditions per place. [2023-11-23 21:34:46,533 INFO L82 GeneralOperation]: Start removeDead. Operand has 1037 places, 1075 transitions, 2171 flow [2023-11-23 21:34:46,563 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1009 places, 1045 transitions, 2108 flow [2023-11-23 21:34:46,581 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:34:46,592 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;@2ee89ffe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:34:46,592 INFO L358 AbstractCegarLoop]: Starting to check reachability of 195 error locations. [2023-11-23 21:34:46,600 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 21:34:46,600 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2023-11-23 21:34:46,600 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 21:34:46,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:46,601 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:46,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-23 21:34:46,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:46,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1937191034, now seen corresponding path program 1 times [2023-11-23 21:34:46,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:46,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955412982] [2023-11-23 21:34:46,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:46,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:46,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:47,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:47,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:47,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955412982] [2023-11-23 21:34:47,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955412982] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:47,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:47,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:47,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202339246] [2023-11-23 21:34:47,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:47,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:47,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:47,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:47,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:47,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1022 out of 1075 [2023-11-23 21:34:47,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1009 places, 1045 transitions, 2108 flow. Second operand has 3 states, 3 states have (on average 1023.3333333333334) internal successors, (3070), 3 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:47,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:47,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1022 of 1075 [2023-11-23 21:34:47,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:48,292 INFO L124 PetriNetUnfolderBase]: 54/1826 cut-off events. [2023-11-23 21:34:48,292 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-23 21:34:48,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1921 conditions, 1826 events. 54/1826 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8250 event pairs, 21 based on Foata normal form. 61/1577 useless extension candidates. Maximal degree in co-relation 1278. Up to 62 conditions per place. [2023-11-23 21:34:48,363 INFO L140 encePairwiseOnDemand]: 1044/1075 looper letters, 19 selfloop transitions, 2 changer transitions 16/1016 dead transitions. [2023-11-23 21:34:48,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1010 places, 1016 transitions, 2092 flow [2023-11-23 21:34:48,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:48,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:48,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3116 transitions. [2023-11-23 21:34:48,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9662015503875969 [2023-11-23 21:34:48,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3116 transitions. [2023-11-23 21:34:48,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3116 transitions. [2023-11-23 21:34:48,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:48,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3116 transitions. [2023-11-23 21:34:48,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1038.6666666666667) internal successors, (3116), 3 states have internal predecessors, (3116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:48,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:48,441 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:48,443 INFO L175 Difference]: Start difference. First operand has 1009 places, 1045 transitions, 2108 flow. Second operand 3 states and 3116 transitions. [2023-11-23 21:34:48,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1010 places, 1016 transitions, 2092 flow [2023-11-23 21:34:48,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1004 places, 1016 transitions, 2080 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-23 21:34:48,487 INFO L231 Difference]: Finished difference. Result has 1004 places, 1000 transitions, 2010 flow [2023-11-23 21:34:48,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=2038, PETRI_DIFFERENCE_MINUEND_PLACES=1002, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1016, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1014, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2010, PETRI_PLACES=1004, PETRI_TRANSITIONS=1000} [2023-11-23 21:34:48,496 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -5 predicate places. [2023-11-23 21:34:48,497 INFO L495 AbstractCegarLoop]: Abstraction has has 1004 places, 1000 transitions, 2010 flow [2023-11-23 21:34:48,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1023.3333333333334) internal successors, (3070), 3 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:48,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:48,500 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:48,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:34:48,501 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-23 21:34:48,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:48,502 INFO L85 PathProgramCache]: Analyzing trace with hash 2015232919, now seen corresponding path program 1 times [2023-11-23 21:34:48,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:48,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981233974] [2023-11-23 21:34:48,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:48,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:48,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:48,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:48,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981233974] [2023-11-23 21:34:48,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981233974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:48,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:48,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:48,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165307336] [2023-11-23 21:34:48,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:48,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:48,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:48,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:48,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:48,737 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1008 out of 1075 [2023-11-23 21:34:48,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1004 places, 1000 transitions, 2010 flow. Second operand has 3 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:48,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:48,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1008 of 1075 [2023-11-23 21:34:48,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:50,353 INFO L124 PetriNetUnfolderBase]: 117/2693 cut-off events. [2023-11-23 21:34:50,354 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-23 21:34:50,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2860 conditions, 2693 events. 117/2693 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 15765 event pairs, 60 based on Foata normal form. 0/2257 useless extension candidates. Maximal degree in co-relation 2817. Up to 146 conditions per place. [2023-11-23 21:34:50,450 INFO L140 encePairwiseOnDemand]: 1064/1075 looper letters, 26 selfloop transitions, 1 changer transitions 0/990 dead transitions. [2023-11-23 21:34:50,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 980 places, 990 transitions, 2044 flow [2023-11-23 21:34:50,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:50,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:50,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3061 transitions. [2023-11-23 21:34:50,462 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9491472868217055 [2023-11-23 21:34:50,463 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3061 transitions. [2023-11-23 21:34:50,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3061 transitions. [2023-11-23 21:34:50,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:50,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3061 transitions. [2023-11-23 21:34:50,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:50,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:50,490 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:50,490 INFO L175 Difference]: Start difference. First operand has 1004 places, 1000 transitions, 2010 flow. Second operand 3 states and 3061 transitions. [2023-11-23 21:34:50,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 980 places, 990 transitions, 2044 flow [2023-11-23 21:34:50,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 978 places, 990 transitions, 2040 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:50,515 INFO L231 Difference]: Finished difference. Result has 978 places, 990 transitions, 1988 flow [2023-11-23 21:34:50,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1986, PETRI_DIFFERENCE_MINUEND_PLACES=976, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=990, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=989, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1988, PETRI_PLACES=978, PETRI_TRANSITIONS=990} [2023-11-23 21:34:50,518 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -31 predicate places. [2023-11-23 21:34:50,519 INFO L495 AbstractCegarLoop]: Abstraction has has 978 places, 990 transitions, 1988 flow [2023-11-23 21:34:50,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:50,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:50,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:50,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:34:50,523 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-23 21:34:50,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:50,523 INFO L85 PathProgramCache]: Analyzing trace with hash 170611477, now seen corresponding path program 1 times [2023-11-23 21:34:50,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:50,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413388095] [2023-11-23 21:34:50,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:50,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:50,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:50,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:50,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413388095] [2023-11-23 21:34:50,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413388095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:50,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:50,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:50,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870660064] [2023-11-23 21:34:50,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:50,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:50,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:50,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:50,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:50,734 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1022 out of 1075 [2023-11-23 21:34:50,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 978 places, 990 transitions, 1988 flow. Second operand has 3 states, 3 states have (on average 1023.3333333333334) internal successors, (3070), 3 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:50,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:50,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1022 of 1075 [2023-11-23 21:34:50,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:52,100 INFO L124 PetriNetUnfolderBase]: 90/2708 cut-off events. [2023-11-23 21:34:52,101 INFO L125 PetriNetUnfolderBase]: For 6/10 co-relation queries the response was YES. [2023-11-23 21:34:52,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2823 conditions, 2708 events. 90/2708 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 16776 event pairs, 39 based on Foata normal form. 0/2244 useless extension candidates. Maximal degree in co-relation 2780. Up to 89 conditions per place. [2023-11-23 21:34:52,185 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 19 selfloop transitions, 2 changer transitions 0/989 dead transitions. [2023-11-23 21:34:52,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 979 places, 989 transitions, 2028 flow [2023-11-23 21:34:52,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:52,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:52,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3088 transitions. [2023-11-23 21:34:52,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9575193798449613 [2023-11-23 21:34:52,198 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3088 transitions. [2023-11-23 21:34:52,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3088 transitions. [2023-11-23 21:34:52,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:52,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3088 transitions. [2023-11-23 21:34:52,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:52,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:52,228 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:52,228 INFO L175 Difference]: Start difference. First operand has 978 places, 990 transitions, 1988 flow. Second operand 3 states and 3088 transitions. [2023-11-23 21:34:52,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 979 places, 989 transitions, 2028 flow [2023-11-23 21:34:52,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 978 places, 989 transitions, 2027 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 21:34:52,259 INFO L231 Difference]: Finished difference. Result has 978 places, 989 transitions, 1989 flow [2023-11-23 21:34:52,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1985, PETRI_DIFFERENCE_MINUEND_PLACES=976, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=989, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=987, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1989, PETRI_PLACES=978, PETRI_TRANSITIONS=989} [2023-11-23 21:34:52,263 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -31 predicate places. [2023-11-23 21:34:52,263 INFO L495 AbstractCegarLoop]: Abstraction has has 978 places, 989 transitions, 1989 flow [2023-11-23 21:34:52,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1023.3333333333334) internal successors, (3070), 3 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:52,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:52,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:52,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:34:52,267 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-23 21:34:52,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:52,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1840965949, now seen corresponding path program 1 times [2023-11-23 21:34:52,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:52,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247472741] [2023-11-23 21:34:52,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:52,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:52,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:52,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:52,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247472741] [2023-11-23 21:34:52,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247472741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:52,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:52,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:52,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812119428] [2023-11-23 21:34:52,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:52,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:52,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:52,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:52,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:52,425 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1008 out of 1075 [2023-11-23 21:34:52,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 978 places, 989 transitions, 1989 flow. Second operand has 3 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:52,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:52,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1008 of 1075 [2023-11-23 21:34:52,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:54,169 INFO L124 PetriNetUnfolderBase]: 225/4022 cut-off events. [2023-11-23 21:34:54,169 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-23 21:34:54,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4350 conditions, 4022 events. 225/4022 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 30553 event pairs, 132 based on Foata normal form. 0/3382 useless extension candidates. Maximal degree in co-relation 4308. Up to 264 conditions per place. [2023-11-23 21:34:54,281 INFO L140 encePairwiseOnDemand]: 1064/1075 looper letters, 26 selfloop transitions, 1 changer transitions 0/979 dead transitions. [2023-11-23 21:34:54,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 970 places, 979 transitions, 2023 flow [2023-11-23 21:34:54,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:54,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:54,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3061 transitions. [2023-11-23 21:34:54,291 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9491472868217055 [2023-11-23 21:34:54,291 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3061 transitions. [2023-11-23 21:34:54,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3061 transitions. [2023-11-23 21:34:54,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:54,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3061 transitions. [2023-11-23 21:34:54,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:54,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:54,337 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:54,337 INFO L175 Difference]: Start difference. First operand has 978 places, 989 transitions, 1989 flow. Second operand 3 states and 3061 transitions. [2023-11-23 21:34:54,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 970 places, 979 transitions, 2023 flow [2023-11-23 21:34:54,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 968 places, 979 transitions, 2019 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:54,359 INFO L231 Difference]: Finished difference. Result has 968 places, 979 transitions, 1967 flow [2023-11-23 21:34:54,362 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1965, PETRI_DIFFERENCE_MINUEND_PLACES=966, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=979, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=978, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1967, PETRI_PLACES=968, PETRI_TRANSITIONS=979} [2023-11-23 21:34:54,364 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -41 predicate places. [2023-11-23 21:34:54,364 INFO L495 AbstractCegarLoop]: Abstraction has has 968 places, 979 transitions, 1967 flow [2023-11-23 21:34:54,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:54,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:54,366 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:54,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:34:54,366 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-23 21:34:54,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:54,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1648462636, now seen corresponding path program 1 times [2023-11-23 21:34:54,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:54,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058470287] [2023-11-23 21:34:54,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:54,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:54,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:54,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:54,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058470287] [2023-11-23 21:34:54,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058470287] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:54,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:54,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:54,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293143894] [2023-11-23 21:34:54,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:54,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:54,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:54,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:54,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:54,478 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1022 out of 1075 [2023-11-23 21:34:54,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 968 places, 979 transitions, 1967 flow. Second operand has 3 states, 3 states have (on average 1023.3333333333334) internal successors, (3070), 3 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:54,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:54,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1022 of 1075 [2023-11-23 21:34:54,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:55,567 INFO L124 PetriNetUnfolderBase]: 75/1947 cut-off events. [2023-11-23 21:34:55,567 INFO L125 PetriNetUnfolderBase]: For 21/48 co-relation queries the response was YES. [2023-11-23 21:34:55,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2048 conditions, 1947 events. 75/1947 cut-off events. For 21/48 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 9258 event pairs, 39 based on Foata normal form. 0/1659 useless extension candidates. Maximal degree in co-relation 2005. Up to 89 conditions per place. [2023-11-23 21:34:55,626 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 19 selfloop transitions, 2 changer transitions 0/978 dead transitions. [2023-11-23 21:34:55,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 969 places, 978 transitions, 2007 flow [2023-11-23 21:34:55,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:55,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:55,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3088 transitions. [2023-11-23 21:34:55,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9575193798449613 [2023-11-23 21:34:55,639 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3088 transitions. [2023-11-23 21:34:55,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3088 transitions. [2023-11-23 21:34:55,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:55,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3088 transitions. [2023-11-23 21:34:55,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:55,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:55,662 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:55,662 INFO L175 Difference]: Start difference. First operand has 968 places, 979 transitions, 1967 flow. Second operand 3 states and 3088 transitions. [2023-11-23 21:34:55,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 969 places, 978 transitions, 2007 flow [2023-11-23 21:34:55,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 968 places, 978 transitions, 2006 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 21:34:55,688 INFO L231 Difference]: Finished difference. Result has 968 places, 978 transitions, 1968 flow [2023-11-23 21:34:55,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1964, PETRI_DIFFERENCE_MINUEND_PLACES=966, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=978, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=976, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1968, PETRI_PLACES=968, PETRI_TRANSITIONS=978} [2023-11-23 21:34:55,691 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -41 predicate places. [2023-11-23 21:34:55,691 INFO L495 AbstractCegarLoop]: Abstraction has has 968 places, 978 transitions, 1968 flow [2023-11-23 21:34:55,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1023.3333333333334) internal successors, (3070), 3 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:55,693 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:55,693 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:55,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:34:55,694 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-23 21:34:55,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:55,694 INFO L85 PathProgramCache]: Analyzing trace with hash 4388993, now seen corresponding path program 1 times [2023-11-23 21:34:55,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:55,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285254251] [2023-11-23 21:34:55,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:55,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:55,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:55,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:55,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285254251] [2023-11-23 21:34:55,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285254251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:55,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:55,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:55,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560311655] [2023-11-23 21:34:55,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:55,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:55,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:55,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:55,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:55,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1008 out of 1075 [2023-11-23 21:34:55,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 968 places, 978 transitions, 1968 flow. Second operand has 3 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:55,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:55,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1008 of 1075 [2023-11-23 21:34:55,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:57,263 INFO L124 PetriNetUnfolderBase]: 227/3739 cut-off events. [2023-11-23 21:34:57,263 INFO L125 PetriNetUnfolderBase]: For 65/94 co-relation queries the response was YES. [2023-11-23 21:34:57,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4030 conditions, 3739 events. 227/3739 cut-off events. For 65/94 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 27044 event pairs, 132 based on Foata normal form. 0/3186 useless extension candidates. Maximal degree in co-relation 3988. Up to 274 conditions per place. [2023-11-23 21:34:57,350 INFO L140 encePairwiseOnDemand]: 1064/1075 looper letters, 26 selfloop transitions, 1 changer transitions 0/968 dead transitions. [2023-11-23 21:34:57,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 960 places, 968 transitions, 2002 flow [2023-11-23 21:34:57,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:57,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:57,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3061 transitions. [2023-11-23 21:34:57,361 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9491472868217055 [2023-11-23 21:34:57,361 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3061 transitions. [2023-11-23 21:34:57,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3061 transitions. [2023-11-23 21:34:57,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:57,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3061 transitions. [2023-11-23 21:34:57,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:57,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:57,382 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:57,383 INFO L175 Difference]: Start difference. First operand has 968 places, 978 transitions, 1968 flow. Second operand 3 states and 3061 transitions. [2023-11-23 21:34:57,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 960 places, 968 transitions, 2002 flow [2023-11-23 21:34:57,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 958 places, 968 transitions, 1998 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:57,406 INFO L231 Difference]: Finished difference. Result has 958 places, 968 transitions, 1946 flow [2023-11-23 21:34:57,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1944, PETRI_DIFFERENCE_MINUEND_PLACES=956, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=967, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1946, PETRI_PLACES=958, PETRI_TRANSITIONS=968} [2023-11-23 21:34:57,412 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -51 predicate places. [2023-11-23 21:34:57,412 INFO L495 AbstractCegarLoop]: Abstraction has has 958 places, 968 transitions, 1946 flow [2023-11-23 21:34:57,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:57,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:57,414 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:57,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:34:57,415 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-23 21:34:57,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:57,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1778744425, now seen corresponding path program 1 times [2023-11-23 21:34:57,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:57,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032186768] [2023-11-23 21:34:57,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:57,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:57,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:57,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:57,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032186768] [2023-11-23 21:34:57,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032186768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:57,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:57,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:57,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956258374] [2023-11-23 21:34:57,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:57,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:57,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:57,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:57,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:57,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1030 out of 1075 [2023-11-23 21:34:57,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 958 places, 968 transitions, 1946 flow. Second operand has 3 states, 3 states have (on average 1031.3333333333333) internal successors, (3094), 3 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:57,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:57,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1030 of 1075 [2023-11-23 21:34:57,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:57,964 INFO L124 PetriNetUnfolderBase]: 26/1275 cut-off events. [2023-11-23 21:34:57,965 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-23 21:34:57,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1303 conditions, 1275 events. 26/1275 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3433 event pairs, 2 based on Foata normal form. 0/1118 useless extension candidates. Maximal degree in co-relation 1260. Up to 16 conditions per place. [2023-11-23 21:34:57,995 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 11 selfloop transitions, 2 changer transitions 0/967 dead transitions. [2023-11-23 21:34:57,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 967 transitions, 1970 flow [2023-11-23 21:34:57,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:57,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:58,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3104 transitions. [2023-11-23 21:34:58,007 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9624806201550388 [2023-11-23 21:34:58,007 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3104 transitions. [2023-11-23 21:34:58,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3104 transitions. [2023-11-23 21:34:58,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:58,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3104 transitions. [2023-11-23 21:34:58,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.6666666666667) internal successors, (3104), 3 states have internal predecessors, (3104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:58,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:58,029 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:58,029 INFO L175 Difference]: Start difference. First operand has 958 places, 968 transitions, 1946 flow. Second operand 3 states and 3104 transitions. [2023-11-23 21:34:58,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 959 places, 967 transitions, 1970 flow [2023-11-23 21:34:58,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 958 places, 967 transitions, 1969 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 21:34:58,051 INFO L231 Difference]: Finished difference. Result has 958 places, 967 transitions, 1947 flow [2023-11-23 21:34:58,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1943, PETRI_DIFFERENCE_MINUEND_PLACES=956, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=967, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=965, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1947, PETRI_PLACES=958, PETRI_TRANSITIONS=967} [2023-11-23 21:34:58,054 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -51 predicate places. [2023-11-23 21:34:58,055 INFO L495 AbstractCegarLoop]: Abstraction has has 958 places, 967 transitions, 1947 flow [2023-11-23 21:34:58,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1031.3333333333333) internal successors, (3094), 3 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:58,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:58,057 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:58,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:34:58,057 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-23 21:34:58,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:58,058 INFO L85 PathProgramCache]: Analyzing trace with hash 494279685, now seen corresponding path program 1 times [2023-11-23 21:34:58,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:58,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643045007] [2023-11-23 21:34:58,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:58,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:58,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:58,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:58,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643045007] [2023-11-23 21:34:58,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643045007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:58,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:58,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:58,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068216869] [2023-11-23 21:34:58,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:58,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:58,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:58,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:58,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:58,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1029 out of 1075 [2023-11-23 21:34:58,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 958 places, 967 transitions, 1947 flow. Second operand has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:58,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:58,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1029 of 1075 [2023-11-23 21:34:58,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:58,900 INFO L124 PetriNetUnfolderBase]: 42/1890 cut-off events. [2023-11-23 21:34:58,900 INFO L125 PetriNetUnfolderBase]: For 3/7 co-relation queries the response was YES. [2023-11-23 21:34:58,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1933 conditions, 1890 events. 42/1890 cut-off events. For 3/7 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 8647 event pairs, 6 based on Foata normal form. 0/1634 useless extension candidates. Maximal degree in co-relation 1890. Up to 25 conditions per place. [2023-11-23 21:34:58,949 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 12 selfloop transitions, 2 changer transitions 0/966 dead transitions. [2023-11-23 21:34:58,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 966 transitions, 1973 flow [2023-11-23 21:34:58,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:58,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:58,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3102 transitions. [2023-11-23 21:34:58,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9618604651162791 [2023-11-23 21:34:58,960 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3102 transitions. [2023-11-23 21:34:58,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3102 transitions. [2023-11-23 21:34:58,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:58,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3102 transitions. [2023-11-23 21:34:58,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.0) internal successors, (3102), 3 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:58,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:58,979 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:58,980 INFO L175 Difference]: Start difference. First operand has 958 places, 967 transitions, 1947 flow. Second operand 3 states and 3102 transitions. [2023-11-23 21:34:58,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 959 places, 966 transitions, 1973 flow [2023-11-23 21:34:58,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 957 places, 966 transitions, 1969 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:59,005 INFO L231 Difference]: Finished difference. Result has 957 places, 966 transitions, 1945 flow [2023-11-23 21:34:59,008 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1941, PETRI_DIFFERENCE_MINUEND_PLACES=955, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=966, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=964, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1945, PETRI_PLACES=957, PETRI_TRANSITIONS=966} [2023-11-23 21:34:59,011 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -52 predicate places. [2023-11-23 21:34:59,011 INFO L495 AbstractCegarLoop]: Abstraction has has 957 places, 966 transitions, 1945 flow [2023-11-23 21:34:59,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:59,013 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:59,013 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:59,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 21:34:59,014 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-23 21:34:59,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:59,014 INFO L85 PathProgramCache]: Analyzing trace with hash -713010154, now seen corresponding path program 1 times [2023-11-23 21:34:59,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:59,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4055161] [2023-11-23 21:34:59,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:59,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:59,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:59,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:59,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4055161] [2023-11-23 21:34:59,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4055161] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:59,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:59,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:59,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307681269] [2023-11-23 21:34:59,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:59,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:59,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:59,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:59,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:59,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1029 out of 1075 [2023-11-23 21:34:59,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 957 places, 966 transitions, 1945 flow. Second operand has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:59,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:34:59,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1029 of 1075 [2023-11-23 21:34:59,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:34:59,817 INFO L124 PetriNetUnfolderBase]: 42/1889 cut-off events. [2023-11-23 21:34:59,817 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-23 21:34:59,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1932 conditions, 1889 events. 42/1889 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 8602 event pairs, 6 based on Foata normal form. 0/1634 useless extension candidates. Maximal degree in co-relation 1889. Up to 25 conditions per place. [2023-11-23 21:34:59,873 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 12 selfloop transitions, 2 changer transitions 0/965 dead transitions. [2023-11-23 21:34:59,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 958 places, 965 transitions, 1971 flow [2023-11-23 21:34:59,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:59,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:34:59,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3102 transitions. [2023-11-23 21:34:59,884 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9618604651162791 [2023-11-23 21:34:59,884 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3102 transitions. [2023-11-23 21:34:59,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3102 transitions. [2023-11-23 21:34:59,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:34:59,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3102 transitions. [2023-11-23 21:34:59,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.0) internal successors, (3102), 3 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:59,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:59,904 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:59,904 INFO L175 Difference]: Start difference. First operand has 957 places, 966 transitions, 1945 flow. Second operand 3 states and 3102 transitions. [2023-11-23 21:34:59,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 958 places, 965 transitions, 1971 flow [2023-11-23 21:34:59,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 956 places, 965 transitions, 1967 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:34:59,926 INFO L231 Difference]: Finished difference. Result has 956 places, 965 transitions, 1943 flow [2023-11-23 21:34:59,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1939, PETRI_DIFFERENCE_MINUEND_PLACES=954, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=965, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=963, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1943, PETRI_PLACES=956, PETRI_TRANSITIONS=965} [2023-11-23 21:34:59,929 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -53 predicate places. [2023-11-23 21:34:59,930 INFO L495 AbstractCegarLoop]: Abstraction has has 956 places, 965 transitions, 1943 flow [2023-11-23 21:34:59,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:34:59,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:34:59,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:59,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 21:34:59,932 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-23 21:34:59,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:59,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1799466666, now seen corresponding path program 1 times [2023-11-23 21:34:59,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:59,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39304754] [2023-11-23 21:34:59,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:59,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:59,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:59,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:59,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39304754] [2023-11-23 21:34:59,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39304754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:59,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:59,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:59,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41488262] [2023-11-23 21:34:59,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:59,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:59,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:59,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:59,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:00,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1030 out of 1075 [2023-11-23 21:35:00,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 956 places, 965 transitions, 1943 flow. Second operand has 3 states, 3 states have (on average 1031.3333333333333) internal successors, (3094), 3 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:00,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:00,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1030 of 1075 [2023-11-23 21:35:00,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:00,458 INFO L124 PetriNetUnfolderBase]: 23/1130 cut-off events. [2023-11-23 21:35:00,459 INFO L125 PetriNetUnfolderBase]: For 4/8 co-relation queries the response was YES. [2023-11-23 21:35:00,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1159 conditions, 1130 events. 23/1130 cut-off events. For 4/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2679 event pairs, 2 based on Foata normal form. 0/1000 useless extension candidates. Maximal degree in co-relation 1116. Up to 16 conditions per place. [2023-11-23 21:35:00,481 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 11 selfloop transitions, 2 changer transitions 0/964 dead transitions. [2023-11-23 21:35:00,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 957 places, 964 transitions, 1967 flow [2023-11-23 21:35:00,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:00,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:00,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3104 transitions. [2023-11-23 21:35:00,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9624806201550388 [2023-11-23 21:35:00,492 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3104 transitions. [2023-11-23 21:35:00,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3104 transitions. [2023-11-23 21:35:00,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:00,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3104 transitions. [2023-11-23 21:35:00,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.6666666666667) internal successors, (3104), 3 states have internal predecessors, (3104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:00,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:00,512 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:00,512 INFO L175 Difference]: Start difference. First operand has 956 places, 965 transitions, 1943 flow. Second operand 3 states and 3104 transitions. [2023-11-23 21:35:00,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 957 places, 964 transitions, 1967 flow [2023-11-23 21:35:00,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 955 places, 964 transitions, 1963 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:00,535 INFO L231 Difference]: Finished difference. Result has 955 places, 964 transitions, 1941 flow [2023-11-23 21:35:00,537 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1937, PETRI_DIFFERENCE_MINUEND_PLACES=953, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=964, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=962, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1941, PETRI_PLACES=955, PETRI_TRANSITIONS=964} [2023-11-23 21:35:00,538 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -54 predicate places. [2023-11-23 21:35:00,538 INFO L495 AbstractCegarLoop]: Abstraction has has 955 places, 964 transitions, 1941 flow [2023-11-23 21:35:00,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1031.3333333333333) internal successors, (3094), 3 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:00,540 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:00,540 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:35:00,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 21:35:00,540 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-23 21:35:00,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:00,541 INFO L85 PathProgramCache]: Analyzing trace with hash 629850170, now seen corresponding path program 1 times [2023-11-23 21:35:00,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:00,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124649636] [2023-11-23 21:35:00,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:00,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:00,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:00,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:00,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124649636] [2023-11-23 21:35:00,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124649636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:00,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:00,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:00,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019040068] [2023-11-23 21:35:00,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:00,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:00,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:00,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:00,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:00,618 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1029 out of 1075 [2023-11-23 21:35:00,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 955 places, 964 transitions, 1941 flow. Second operand has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:00,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:00,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1029 of 1075 [2023-11-23 21:35:00,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:01,317 INFO L124 PetriNetUnfolderBase]: 33/1461 cut-off events. [2023-11-23 21:35:01,317 INFO L125 PetriNetUnfolderBase]: For 6/30 co-relation queries the response was YES. [2023-11-23 21:35:01,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1501 conditions, 1461 events. 33/1461 cut-off events. For 6/30 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 5292 event pairs, 6 based on Foata normal form. 0/1277 useless extension candidates. Maximal degree in co-relation 1458. Up to 25 conditions per place. [2023-11-23 21:35:01,362 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 12 selfloop transitions, 2 changer transitions 0/963 dead transitions. [2023-11-23 21:35:01,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 956 places, 963 transitions, 1967 flow [2023-11-23 21:35:01,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:01,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:01,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3102 transitions. [2023-11-23 21:35:01,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9618604651162791 [2023-11-23 21:35:01,373 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3102 transitions. [2023-11-23 21:35:01,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3102 transitions. [2023-11-23 21:35:01,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:01,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3102 transitions. [2023-11-23 21:35:01,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.0) internal successors, (3102), 3 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:01,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:01,395 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:01,395 INFO L175 Difference]: Start difference. First operand has 955 places, 964 transitions, 1941 flow. Second operand 3 states and 3102 transitions. [2023-11-23 21:35:01,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 956 places, 963 transitions, 1967 flow [2023-11-23 21:35:01,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 954 places, 963 transitions, 1963 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:01,422 INFO L231 Difference]: Finished difference. Result has 954 places, 963 transitions, 1939 flow [2023-11-23 21:35:01,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1935, PETRI_DIFFERENCE_MINUEND_PLACES=952, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=963, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=961, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1939, PETRI_PLACES=954, PETRI_TRANSITIONS=963} [2023-11-23 21:35:01,425 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -55 predicate places. [2023-11-23 21:35:01,425 INFO L495 AbstractCegarLoop]: Abstraction has has 954 places, 963 transitions, 1939 flow [2023-11-23 21:35:01,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:01,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:01,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:35:01,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 21:35:01,428 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-23 21:35:01,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:01,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1984129800, now seen corresponding path program 1 times [2023-11-23 21:35:01,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:01,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773919740] [2023-11-23 21:35:01,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:01,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:01,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:01,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:01,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773919740] [2023-11-23 21:35:01,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773919740] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:01,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:01,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:01,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788738353] [2023-11-23 21:35:01,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:01,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:01,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:01,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:01,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:01,540 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1029 out of 1075 [2023-11-23 21:35:01,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 954 places, 963 transitions, 1939 flow. Second operand has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:01,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:01,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1029 of 1075 [2023-11-23 21:35:01,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:02,172 INFO L124 PetriNetUnfolderBase]: 33/1460 cut-off events. [2023-11-23 21:35:02,173 INFO L125 PetriNetUnfolderBase]: For 6/22 co-relation queries the response was YES. [2023-11-23 21:35:02,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1500 conditions, 1460 events. 33/1460 cut-off events. For 6/22 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 5278 event pairs, 6 based on Foata normal form. 0/1278 useless extension candidates. Maximal degree in co-relation 1457. Up to 25 conditions per place. [2023-11-23 21:35:02,222 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 12 selfloop transitions, 2 changer transitions 0/962 dead transitions. [2023-11-23 21:35:02,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 955 places, 962 transitions, 1965 flow [2023-11-23 21:35:02,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:02,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:02,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3102 transitions. [2023-11-23 21:35:02,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9618604651162791 [2023-11-23 21:35:02,234 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3102 transitions. [2023-11-23 21:35:02,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3102 transitions. [2023-11-23 21:35:02,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:02,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3102 transitions. [2023-11-23 21:35:02,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.0) internal successors, (3102), 3 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:02,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:02,254 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:02,255 INFO L175 Difference]: Start difference. First operand has 954 places, 963 transitions, 1939 flow. Second operand 3 states and 3102 transitions. [2023-11-23 21:35:02,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 955 places, 962 transitions, 1965 flow [2023-11-23 21:35:02,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 953 places, 962 transitions, 1961 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:02,281 INFO L231 Difference]: Finished difference. Result has 953 places, 962 transitions, 1937 flow [2023-11-23 21:35:02,283 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1933, PETRI_DIFFERENCE_MINUEND_PLACES=951, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=960, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1937, PETRI_PLACES=953, PETRI_TRANSITIONS=962} [2023-11-23 21:35:02,284 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -56 predicate places. [2023-11-23 21:35:02,284 INFO L495 AbstractCegarLoop]: Abstraction has has 953 places, 962 transitions, 1937 flow [2023-11-23 21:35:02,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:02,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:02,286 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:35:02,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 21:35:02,287 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-23 21:35:02,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:02,288 INFO L85 PathProgramCache]: Analyzing trace with hash 704909287, now seen corresponding path program 1 times [2023-11-23 21:35:02,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:02,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204524361] [2023-11-23 21:35:02,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:02,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:02,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:02,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:02,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204524361] [2023-11-23 21:35:02,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204524361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:02,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:02,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:02,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843157290] [2023-11-23 21:35:02,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:02,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:02,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:02,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:02,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:02,376 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1030 out of 1075 [2023-11-23 21:35:02,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 953 places, 962 transitions, 1937 flow. Second operand has 3 states, 3 states have (on average 1031.3333333333333) internal successors, (3094), 3 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:02,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:02,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1030 of 1075 [2023-11-23 21:35:02,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:02,731 INFO L124 PetriNetUnfolderBase]: 20/991 cut-off events. [2023-11-23 21:35:02,731 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-11-23 21:35:02,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1019 conditions, 991 events. 20/991 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2141 event pairs, 2 based on Foata normal form. 0/888 useless extension candidates. Maximal degree in co-relation 976. Up to 16 conditions per place. [2023-11-23 21:35:02,747 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 11 selfloop transitions, 2 changer transitions 0/961 dead transitions. [2023-11-23 21:35:02,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 954 places, 961 transitions, 1961 flow [2023-11-23 21:35:02,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:02,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:02,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3104 transitions. [2023-11-23 21:35:02,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9624806201550388 [2023-11-23 21:35:02,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3104 transitions. [2023-11-23 21:35:02,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3104 transitions. [2023-11-23 21:35:02,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:02,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3104 transitions. [2023-11-23 21:35:02,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.6666666666667) internal successors, (3104), 3 states have internal predecessors, (3104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:02,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:02,776 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:02,777 INFO L175 Difference]: Start difference. First operand has 953 places, 962 transitions, 1937 flow. Second operand 3 states and 3104 transitions. [2023-11-23 21:35:02,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 954 places, 961 transitions, 1961 flow [2023-11-23 21:35:02,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 952 places, 961 transitions, 1957 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:02,804 INFO L231 Difference]: Finished difference. Result has 952 places, 961 transitions, 1935 flow [2023-11-23 21:35:02,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1931, PETRI_DIFFERENCE_MINUEND_PLACES=950, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=961, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=959, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1935, PETRI_PLACES=952, PETRI_TRANSITIONS=961} [2023-11-23 21:35:02,807 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -57 predicate places. [2023-11-23 21:35:02,807 INFO L495 AbstractCegarLoop]: Abstraction has has 952 places, 961 transitions, 1935 flow [2023-11-23 21:35:02,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1031.3333333333333) internal successors, (3094), 3 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:02,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:02,809 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:35:02,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 21:35:02,810 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-23 21:35:02,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:02,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1697786373, now seen corresponding path program 1 times [2023-11-23 21:35:02,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:02,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405033412] [2023-11-23 21:35:02,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:02,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:02,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:02,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:02,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405033412] [2023-11-23 21:35:02,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405033412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:02,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:02,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:02,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826379930] [2023-11-23 21:35:02,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:02,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:02,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:02,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:02,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:02,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1029 out of 1075 [2023-11-23 21:35:02,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 952 places, 961 transitions, 1935 flow. Second operand has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:02,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:02,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1029 of 1075 [2023-11-23 21:35:02,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:03,418 INFO L124 PetriNetUnfolderBase]: 30/1226 cut-off events. [2023-11-23 21:35:03,419 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2023-11-23 21:35:03,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1263 conditions, 1226 events. 30/1226 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3186 event pairs, 6 based on Foata normal form. 0/1080 useless extension candidates. Maximal degree in co-relation 1220. Up to 25 conditions per place. [2023-11-23 21:35:03,449 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 12 selfloop transitions, 2 changer transitions 0/960 dead transitions. [2023-11-23 21:35:03,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 953 places, 960 transitions, 1961 flow [2023-11-23 21:35:03,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:03,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:03,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3102 transitions. [2023-11-23 21:35:03,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9618604651162791 [2023-11-23 21:35:03,460 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3102 transitions. [2023-11-23 21:35:03,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3102 transitions. [2023-11-23 21:35:03,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:03,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3102 transitions. [2023-11-23 21:35:03,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.0) internal successors, (3102), 3 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:03,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:03,478 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:03,478 INFO L175 Difference]: Start difference. First operand has 952 places, 961 transitions, 1935 flow. Second operand 3 states and 3102 transitions. [2023-11-23 21:35:03,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 953 places, 960 transitions, 1961 flow [2023-11-23 21:35:03,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 951 places, 960 transitions, 1957 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:03,506 INFO L231 Difference]: Finished difference. Result has 951 places, 960 transitions, 1933 flow [2023-11-23 21:35:03,508 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1929, PETRI_DIFFERENCE_MINUEND_PLACES=949, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=960, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=958, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1933, PETRI_PLACES=951, PETRI_TRANSITIONS=960} [2023-11-23 21:35:03,508 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -58 predicate places. [2023-11-23 21:35:03,509 INFO L495 AbstractCegarLoop]: Abstraction has has 951 places, 960 transitions, 1933 flow [2023-11-23 21:35:03,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:03,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:03,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:35:03,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 21:35:03,511 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-23 21:35:03,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:03,511 INFO L85 PathProgramCache]: Analyzing trace with hash 402711920, now seen corresponding path program 1 times [2023-11-23 21:35:03,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:03,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506027021] [2023-11-23 21:35:03,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:03,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:03,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:03,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:03,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506027021] [2023-11-23 21:35:03,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506027021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:03,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:03,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:03,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057776141] [2023-11-23 21:35:03,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:03,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:03,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:03,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:03,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:03,602 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1029 out of 1075 [2023-11-23 21:35:03,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 951 places, 960 transitions, 1933 flow. Second operand has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:03,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:03,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1029 of 1075 [2023-11-23 21:35:03,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:04,095 INFO L124 PetriNetUnfolderBase]: 30/1187 cut-off events. [2023-11-23 21:35:04,095 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2023-11-23 21:35:04,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1224 conditions, 1187 events. 30/1187 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3050 event pairs, 6 based on Foata normal form. 0/1048 useless extension candidates. Maximal degree in co-relation 1181. Up to 25 conditions per place. [2023-11-23 21:35:04,122 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 12 selfloop transitions, 2 changer transitions 0/959 dead transitions. [2023-11-23 21:35:04,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 952 places, 959 transitions, 1959 flow [2023-11-23 21:35:04,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:04,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:04,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3102 transitions. [2023-11-23 21:35:04,132 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9618604651162791 [2023-11-23 21:35:04,133 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3102 transitions. [2023-11-23 21:35:04,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3102 transitions. [2023-11-23 21:35:04,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:04,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3102 transitions. [2023-11-23 21:35:04,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.0) internal successors, (3102), 3 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:04,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:04,154 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:04,154 INFO L175 Difference]: Start difference. First operand has 951 places, 960 transitions, 1933 flow. Second operand 3 states and 3102 transitions. [2023-11-23 21:35:04,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 952 places, 959 transitions, 1959 flow [2023-11-23 21:35:04,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 950 places, 959 transitions, 1955 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:04,181 INFO L231 Difference]: Finished difference. Result has 950 places, 959 transitions, 1931 flow [2023-11-23 21:35:04,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1927, PETRI_DIFFERENCE_MINUEND_PLACES=948, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=959, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=957, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1931, PETRI_PLACES=950, PETRI_TRANSITIONS=959} [2023-11-23 21:35:04,184 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -59 predicate places. [2023-11-23 21:35:04,184 INFO L495 AbstractCegarLoop]: Abstraction has has 950 places, 959 transitions, 1931 flow [2023-11-23 21:35:04,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:04,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:04,186 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:35:04,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 21:35:04,186 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-23 21:35:04,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:04,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1374932715, now seen corresponding path program 1 times [2023-11-23 21:35:04,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:04,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616005236] [2023-11-23 21:35:04,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:04,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:04,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:04,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:04,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616005236] [2023-11-23 21:35:04,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616005236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:04,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:04,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:35:04,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414676442] [2023-11-23 21:35:04,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:04,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:35:04,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:04,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:35:04,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:35:04,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1028 out of 1075 [2023-11-23 21:35:04,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 950 places, 959 transitions, 1931 flow. Second operand has 3 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:04,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:04,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1028 of 1075 [2023-11-23 21:35:04,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 21:35:04,992 INFO L124 PetriNetUnfolderBase]: 42/1582 cut-off events. [2023-11-23 21:35:04,993 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-23 21:35:05,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1636 conditions, 1582 events. 42/1582 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6595 event pairs, 12 based on Foata normal form. 0/1382 useless extension candidates. Maximal degree in co-relation 1593. Up to 38 conditions per place. [2023-11-23 21:35:05,030 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 13 selfloop transitions, 2 changer transitions 0/958 dead transitions. [2023-11-23 21:35:05,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 951 places, 958 transitions, 1959 flow [2023-11-23 21:35:05,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:35:05,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 21:35:05,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3100 transitions. [2023-11-23 21:35:05,039 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9612403100775194 [2023-11-23 21:35:05,039 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3100 transitions. [2023-11-23 21:35:05,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3100 transitions. [2023-11-23 21:35:05,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 21:35:05,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3100 transitions. [2023-11-23 21:35:05,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1033.3333333333333) internal successors, (3100), 3 states have internal predecessors, (3100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:05,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:05,053 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:05,053 INFO L175 Difference]: Start difference. First operand has 950 places, 959 transitions, 1931 flow. Second operand 3 states and 3100 transitions. [2023-11-23 21:35:05,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 951 places, 958 transitions, 1959 flow [2023-11-23 21:35:05,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 949 places, 958 transitions, 1955 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 21:35:05,075 INFO L231 Difference]: Finished difference. Result has 949 places, 958 transitions, 1929 flow [2023-11-23 21:35:05,077 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1925, PETRI_DIFFERENCE_MINUEND_PLACES=947, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=956, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1929, PETRI_PLACES=949, PETRI_TRANSITIONS=958} [2023-11-23 21:35:05,078 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -60 predicate places. [2023-11-23 21:35:05,078 INFO L495 AbstractCegarLoop]: Abstraction has has 949 places, 958 transitions, 1929 flow [2023-11-23 21:35:05,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:05,079 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 21:35:05,079 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:35:05,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-23 21:35:05,079 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-23 21:35:05,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:35:05,080 INFO L85 PathProgramCache]: Analyzing trace with hash -2022188252, now seen corresponding path program 1 times [2023-11-23 21:35:05,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:35:05,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488082097] [2023-11-23 21:35:05,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:35:05,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:35:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:35:06,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:35:06,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:35:06,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488082097] [2023-11-23 21:35:06,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488082097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:35:06,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:35:06,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:35:06,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014567618] [2023-11-23 21:35:06,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:35:06,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:35:06,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:35:06,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:35:06,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:35:07,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 928 out of 1075 [2023-11-23 21:35:07,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 949 places, 958 transitions, 1929 flow. Second operand has 6 states, 6 states have (on average 929.5) internal successors, (5577), 6 states have internal predecessors, (5577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:35:07,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 21:35:07,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 928 of 1075 [2023-11-23 21:35:07,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand