./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd015c72-27aa-4b5c-9ed0-9a1461fa4f0c/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd015c72-27aa-4b5c-9ed0-9a1461fa4f0c/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_fd015c72-27aa-4b5c-9ed0-9a1461fa4f0c/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd015c72-27aa-4b5c-9ed0-9a1461fa4f0c/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd015c72-27aa-4b5c-9ed0-9a1461fa4f0c/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_fd015c72-27aa-4b5c-9ed0-9a1461fa4f0c/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 362ca5c35cce683744d8d619a442f154ce469608d45ae43ff282ddf886694959 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:40:50,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:40:50,968 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd015c72-27aa-4b5c-9ed0-9a1461fa4f0c/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 22:40:50,974 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:40:50,974 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:40:51,017 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:40:51,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:40:51,019 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:40:51,021 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:40:51,026 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:40:51,027 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:40:51,028 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:40:51,028 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:40:51,029 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:40:51,030 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:40:51,030 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:40:51,030 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:40:51,031 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:40:51,031 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:40:51,031 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:40:51,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:40:51,032 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:40:51,033 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 22:40:51,033 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:40:51,033 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:40:51,034 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:40:51,034 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:40:51,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:40:51,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:40:51,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:40:51,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:40:51,037 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:40:51,037 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:40:51,037 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:40:51,038 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:40:51,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:40:51,038 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:40:51,038 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:40:51,039 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:40:51,039 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:40:51,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:40:51,039 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_fd015c72-27aa-4b5c-9ed0-9a1461fa4f0c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd015c72-27aa-4b5c-9ed0-9a1461fa4f0c/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 362ca5c35cce683744d8d619a442f154ce469608d45ae43ff282ddf886694959 [2023-11-23 22:40:51,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:40:51,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:40:51,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:40:51,355 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:40:51,355 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:40:51,357 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd015c72-27aa-4b5c-9ed0-9a1461fa4f0c/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2023-11-23 22:40:54,529 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:40:54,854 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:40:54,855 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd015c72-27aa-4b5c-9ed0-9a1461fa4f0c/sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2023-11-23 22:40:54,865 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd015c72-27aa-4b5c-9ed0-9a1461fa4f0c/bin/uautomizer-verify-zZY32mL2XJ/data/52e408d4e/6933b3af9ade4d5b9d5334aa078df137/FLAG3f453923c [2023-11-23 22:40:54,884 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd015c72-27aa-4b5c-9ed0-9a1461fa4f0c/bin/uautomizer-verify-zZY32mL2XJ/data/52e408d4e/6933b3af9ade4d5b9d5334aa078df137 [2023-11-23 22:40:54,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:40:54,889 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:40:54,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:40:54,891 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:40:54,897 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:40:54,898 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:40:54" (1/1) ... [2023-11-23 22:40:54,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38539809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:40:54, skipping insertion in model container [2023-11-23 22:40:54,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:40:54" (1/1) ... [2023-11-23 22:40:54,930 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:40:55,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:40:55,169 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:40:55,244 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:40:55,262 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:40:55,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:40:55 WrapperNode [2023-11-23 22:40:55,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:40:55,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:40:55,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:40:55,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:40:55,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:40:55" (1/1) ... [2023-11-23 22:40:55,291 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:40:55" (1/1) ... [2023-11-23 22:40:55,363 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 874 [2023-11-23 22:40:55,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:40:55,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:40:55,365 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:40:55,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:40:55,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:40:55" (1/1) ... [2023-11-23 22:40:55,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:40:55" (1/1) ... [2023-11-23 22:40:55,387 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:40:55" (1/1) ... [2023-11-23 22:40:55,387 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:40:55" (1/1) ... [2023-11-23 22:40:55,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:40:55" (1/1) ... [2023-11-23 22:40:55,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:40:55" (1/1) ... [2023-11-23 22:40:55,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:40:55" (1/1) ... [2023-11-23 22:40:55,453 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:40:55" (1/1) ... [2023-11-23 22:40:55,461 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:40:55,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:40:55,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:40:55,462 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:40:55,472 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:40:55" (1/1) ... [2023-11-23 22:40:55,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:40:55,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd015c72-27aa-4b5c-9ed0-9a1461fa4f0c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:40:55,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd015c72-27aa-4b5c-9ed0-9a1461fa4f0c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:40:55,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd015c72-27aa-4b5c-9ed0-9a1461fa4f0c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:40:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:40:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:40:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 22:40:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 22:40:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 22:40:55,575 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 22:40:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 22:40:55,576 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 22:40:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-23 22:40:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-23 22:40:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 22:40:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:40:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:40:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:40:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:40:55,582 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 22:40:55,833 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:40:55,836 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:40:57,160 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:40:57,195 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:40:57,195 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-23 22:40:57,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:40:57 BoogieIcfgContainer [2023-11-23 22:40:57,197 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:40:57,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:40:57,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:40:57,203 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:40:57,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:40:54" (1/3) ... [2023-11-23 22:40:57,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c01e2ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:40:57, skipping insertion in model container [2023-11-23 22:40:57,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:40:55" (2/3) ... [2023-11-23 22:40:57,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c01e2ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:40:57, skipping insertion in model container [2023-11-23 22:40:57,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:40:57" (3/3) ... [2023-11-23 22:40:57,206 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-trans.wvr.c [2023-11-23 22:40:57,216 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:40:57,227 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:40:57,227 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 152 error locations. [2023-11-23 22:40:57,228 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:40:57,471 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-23 22:40:57,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1085 places, 1133 transitions, 2287 flow [2023-11-23 22:40:58,621 INFO L124 PetriNetUnfolderBase]: 58/1130 cut-off events. [2023-11-23 22:40:58,622 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-23 22:40:58,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1143 conditions, 1130 events. 58/1130 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3903 event pairs, 0 based on Foata normal form. 0/920 useless extension candidates. Maximal degree in co-relation 857. Up to 2 conditions per place. [2023-11-23 22:40:58,688 INFO L82 GeneralOperation]: Start removeDead. Operand has 1085 places, 1133 transitions, 2287 flow [2023-11-23 22:40:58,749 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1057 places, 1103 transitions, 2224 flow [2023-11-23 22:40:58,767 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:40:58,781 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;@4b25e0e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:40:58,781 INFO L358 AbstractCegarLoop]: Starting to check reachability of 284 error locations. [2023-11-23 22:40:58,790 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:40:58,790 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2023-11-23 22:40:58,791 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:40:58,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:40:58,792 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:40:58,792 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-23 22:40:58,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:40:58,800 INFO L85 PathProgramCache]: Analyzing trace with hash 741302430, now seen corresponding path program 1 times [2023-11-23 22:40:58,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:40:58,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334241652] [2023-11-23 22:40:58,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:40:58,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:40:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:40:59,111 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 22:40:59,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:40:59,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334241652] [2023-11-23 22:40:59,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334241652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:40:59,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:40:59,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:40:59,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754904648] [2023-11-23 22:40:59,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:40:59,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:40:59,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:40:59,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:40:59,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:40:59,300 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1090 out of 1133 [2023-11-23 22:40:59,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1057 places, 1103 transitions, 2224 flow. Second operand has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:40:59,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:40:59,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1090 of 1133 [2023-11-23 22:40:59,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:02,044 INFO L124 PetriNetUnfolderBase]: 227/4435 cut-off events. [2023-11-23 22:41:02,044 INFO L125 PetriNetUnfolderBase]: For 59/66 co-relation queries the response was YES. [2023-11-23 22:41:02,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4590 conditions, 4435 events. 227/4435 cut-off events. For 59/66 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 33854 event pairs, 45 based on Foata normal form. 209/3721 useless extension candidates. Maximal degree in co-relation 3765. Up to 110 conditions per place. [2023-11-23 22:41:02,352 INFO L140 encePairwiseOnDemand]: 1112/1133 looper letters, 19 selfloop transitions, 2 changer transitions 2/1084 dead transitions. [2023-11-23 22:41:02,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1058 places, 1084 transitions, 2228 flow [2023-11-23 22:41:02,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:02,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:02,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3310 transitions. [2023-11-23 22:41:02,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9738158281847602 [2023-11-23 22:41:02,386 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3310 transitions. [2023-11-23 22:41:02,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3310 transitions. [2023-11-23 22:41:02,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:02,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3310 transitions. [2023-11-23 22:41:02,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1103.3333333333333) internal successors, (3310), 3 states have internal predecessors, (3310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:02,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:02,434 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:02,436 INFO L175 Difference]: Start difference. First operand has 1057 places, 1103 transitions, 2224 flow. Second operand 3 states and 3310 transitions. [2023-11-23 22:41:02,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1058 places, 1084 transitions, 2228 flow [2023-11-23 22:41:02,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1052 places, 1084 transitions, 2216 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-23 22:41:02,479 INFO L231 Difference]: Finished difference. Result has 1052 places, 1082 transitions, 2174 flow [2023-11-23 22:41:02,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2174, PETRI_DIFFERENCE_MINUEND_PLACES=1050, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1084, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1082, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2174, PETRI_PLACES=1052, PETRI_TRANSITIONS=1082} [2023-11-23 22:41:02,487 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -5 predicate places. [2023-11-23 22:41:02,488 INFO L495 AbstractCegarLoop]: Abstraction has has 1052 places, 1082 transitions, 2174 flow [2023-11-23 22:41:02,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:02,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:02,492 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:02,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:41:02,493 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-23 22:41:02,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:02,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1558423897, now seen corresponding path program 1 times [2023-11-23 22:41:02,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:02,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488873716] [2023-11-23 22:41:02,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:02,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:02,635 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 22:41:02,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:02,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488873716] [2023-11-23 22:41:02,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488873716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:02,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:02,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:02,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366991993] [2023-11-23 22:41:02,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:02,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:02,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:02,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:02,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:02,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1090 out of 1133 [2023-11-23 22:41:02,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1052 places, 1082 transitions, 2174 flow. Second operand has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:02,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:02,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1090 of 1133 [2023-11-23 22:41:02,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:08,409 INFO L124 PetriNetUnfolderBase]: 613/12441 cut-off events. [2023-11-23 22:41:08,409 INFO L125 PetriNetUnfolderBase]: For 8/20 co-relation queries the response was YES. [2023-11-23 22:41:08,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12675 conditions, 12441 events. 613/12441 cut-off events. For 8/20 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 124170 event pairs, 95 based on Foata normal form. 0/9786 useless extension candidates. Maximal degree in co-relation 12634. Up to 185 conditions per place. [2023-11-23 22:41:08,830 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 19 selfloop transitions, 2 changer transitions 0/1081 dead transitions. [2023-11-23 22:41:08,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1051 places, 1081 transitions, 2214 flow [2023-11-23 22:41:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:08,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:08,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3292 transitions. [2023-11-23 22:41:08,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9685201529861724 [2023-11-23 22:41:08,855 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3292 transitions. [2023-11-23 22:41:08,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3292 transitions. [2023-11-23 22:41:08,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:08,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3292 transitions. [2023-11-23 22:41:08,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:08,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:08,884 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:08,884 INFO L175 Difference]: Start difference. First operand has 1052 places, 1082 transitions, 2174 flow. Second operand 3 states and 3292 transitions. [2023-11-23 22:41:08,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1051 places, 1081 transitions, 2214 flow [2023-11-23 22:41:08,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1049 places, 1081 transitions, 2210 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:08,915 INFO L231 Difference]: Finished difference. Result has 1049 places, 1081 transitions, 2172 flow [2023-11-23 22:41:08,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2168, PETRI_DIFFERENCE_MINUEND_PLACES=1047, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1081, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1079, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2172, PETRI_PLACES=1049, PETRI_TRANSITIONS=1081} [2023-11-23 22:41:08,919 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -8 predicate places. [2023-11-23 22:41:08,919 INFO L495 AbstractCegarLoop]: Abstraction has has 1049 places, 1081 transitions, 2172 flow [2023-11-23 22:41:08,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:08,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:08,926 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:08,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:41:08,927 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-23 22:41:08,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:08,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1516877624, now seen corresponding path program 1 times [2023-11-23 22:41:08,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:08,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242535770] [2023-11-23 22:41:08,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:08,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:09,059 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 22:41:09,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:09,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242535770] [2023-11-23 22:41:09,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242535770] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:09,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:09,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:09,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959803311] [2023-11-23 22:41:09,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:09,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:09,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:09,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:09,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:09,128 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1090 out of 1133 [2023-11-23 22:41:09,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1049 places, 1081 transitions, 2172 flow. Second operand has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:09,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:09,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1090 of 1133 [2023-11-23 22:41:09,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:11,006 INFO L124 PetriNetUnfolderBase]: 241/3780 cut-off events. [2023-11-23 22:41:11,006 INFO L125 PetriNetUnfolderBase]: For 43/76 co-relation queries the response was YES. [2023-11-23 22:41:11,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3979 conditions, 3780 events. 241/3780 cut-off events. For 43/76 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 28674 event pairs, 95 based on Foata normal form. 0/3014 useless extension candidates. Maximal degree in co-relation 3930. Up to 185 conditions per place. [2023-11-23 22:41:11,200 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 19 selfloop transitions, 2 changer transitions 0/1080 dead transitions. [2023-11-23 22:41:11,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1050 places, 1080 transitions, 2212 flow [2023-11-23 22:41:11,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:11,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:11,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3292 transitions. [2023-11-23 22:41:11,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9685201529861724 [2023-11-23 22:41:11,212 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3292 transitions. [2023-11-23 22:41:11,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3292 transitions. [2023-11-23 22:41:11,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:11,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3292 transitions. [2023-11-23 22:41:11,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1097.3333333333333) internal successors, (3292), 3 states have internal predecessors, (3292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:11,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:11,444 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:11,445 INFO L175 Difference]: Start difference. First operand has 1049 places, 1081 transitions, 2172 flow. Second operand 3 states and 3292 transitions. [2023-11-23 22:41:11,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1050 places, 1080 transitions, 2212 flow [2023-11-23 22:41:11,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1048 places, 1080 transitions, 2208 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:11,470 INFO L231 Difference]: Finished difference. Result has 1048 places, 1080 transitions, 2170 flow [2023-11-23 22:41:11,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2166, PETRI_DIFFERENCE_MINUEND_PLACES=1046, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1080, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1078, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2170, PETRI_PLACES=1048, PETRI_TRANSITIONS=1080} [2023-11-23 22:41:11,474 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -9 predicate places. [2023-11-23 22:41:11,475 INFO L495 AbstractCegarLoop]: Abstraction has has 1048 places, 1080 transitions, 2170 flow [2023-11-23 22:41:11,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1091.3333333333333) internal successors, (3274), 3 states have internal predecessors, (3274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:11,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:11,478 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:11,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:41:11,479 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-23 22:41:11,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:11,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1023325623, now seen corresponding path program 1 times [2023-11-23 22:41:11,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:11,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340565496] [2023-11-23 22:41:11,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:11,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:11,575 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 22:41:11,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:11,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340565496] [2023-11-23 22:41:11,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340565496] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:11,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:11,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:11,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196003552] [2023-11-23 22:41:11,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:11,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:11,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:11,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:11,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:11,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1091 out of 1133 [2023-11-23 22:41:11,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1048 places, 1080 transitions, 2170 flow. Second operand has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:11,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:11,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1091 of 1133 [2023-11-23 22:41:11,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:14,238 INFO L124 PetriNetUnfolderBase]: 246/5559 cut-off events. [2023-11-23 22:41:14,238 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-23 22:41:14,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5635 conditions, 5559 events. 246/5559 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 44404 event pairs, 16 based on Foata normal form. 0/4396 useless extension candidates. Maximal degree in co-relation 5578. Up to 51 conditions per place. [2023-11-23 22:41:14,641 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 18 selfloop transitions, 2 changer transitions 0/1079 dead transitions. [2023-11-23 22:41:14,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1049 places, 1079 transitions, 2208 flow [2023-11-23 22:41:14,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:14,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:14,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3294 transitions. [2023-11-23 22:41:14,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9691085613415711 [2023-11-23 22:41:14,654 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3294 transitions. [2023-11-23 22:41:14,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3294 transitions. [2023-11-23 22:41:14,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:14,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3294 transitions. [2023-11-23 22:41:14,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1098.0) internal successors, (3294), 3 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:14,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:14,682 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:14,682 INFO L175 Difference]: Start difference. First operand has 1048 places, 1080 transitions, 2170 flow. Second operand 3 states and 3294 transitions. [2023-11-23 22:41:14,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1049 places, 1079 transitions, 2208 flow [2023-11-23 22:41:14,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1047 places, 1079 transitions, 2204 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:14,712 INFO L231 Difference]: Finished difference. Result has 1047 places, 1079 transitions, 2168 flow [2023-11-23 22:41:14,715 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2164, PETRI_DIFFERENCE_MINUEND_PLACES=1045, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1079, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1077, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2168, PETRI_PLACES=1047, PETRI_TRANSITIONS=1079} [2023-11-23 22:41:14,717 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -10 predicate places. [2023-11-23 22:41:14,717 INFO L495 AbstractCegarLoop]: Abstraction has has 1047 places, 1079 transitions, 2168 flow [2023-11-23 22:41:14,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:14,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:14,720 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:14,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:41:14,721 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-23 22:41:14,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:14,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1657102122, now seen corresponding path program 1 times [2023-11-23 22:41:14,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:14,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003642190] [2023-11-23 22:41:14,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:14,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:14,834 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 22:41:14,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:14,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003642190] [2023-11-23 22:41:14,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003642190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:14,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:14,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:14,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43826038] [2023-11-23 22:41:14,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:14,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:14,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:14,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:14,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:14,878 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1094 out of 1133 [2023-11-23 22:41:14,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1047 places, 1079 transitions, 2168 flow. Second operand has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:14,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:14,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1094 of 1133 [2023-11-23 22:41:14,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:15,945 INFO L124 PetriNetUnfolderBase]: 74/1626 cut-off events. [2023-11-23 22:41:15,945 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-23 22:41:16,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1687 conditions, 1626 events. 74/1626 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 8263 event pairs, 12 based on Foata normal form. 0/1310 useless extension candidates. Maximal degree in co-relation 1622. Up to 40 conditions per place. [2023-11-23 22:41:16,030 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 15 selfloop transitions, 2 changer transitions 0/1078 dead transitions. [2023-11-23 22:41:16,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1048 places, 1078 transitions, 2200 flow [2023-11-23 22:41:16,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:16,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:16,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3300 transitions. [2023-11-23 22:41:16,043 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.970873786407767 [2023-11-23 22:41:16,043 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3300 transitions. [2023-11-23 22:41:16,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3300 transitions. [2023-11-23 22:41:16,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:16,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3300 transitions. [2023-11-23 22:41:16,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.0) internal successors, (3300), 3 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:16,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:16,206 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:16,206 INFO L175 Difference]: Start difference. First operand has 1047 places, 1079 transitions, 2168 flow. Second operand 3 states and 3300 transitions. [2023-11-23 22:41:16,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1048 places, 1078 transitions, 2200 flow [2023-11-23 22:41:16,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1046 places, 1078 transitions, 2196 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:16,229 INFO L231 Difference]: Finished difference. Result has 1046 places, 1078 transitions, 2166 flow [2023-11-23 22:41:16,231 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2162, PETRI_DIFFERENCE_MINUEND_PLACES=1044, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1078, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1076, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2166, PETRI_PLACES=1046, PETRI_TRANSITIONS=1078} [2023-11-23 22:41:16,232 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -11 predicate places. [2023-11-23 22:41:16,233 INFO L495 AbstractCegarLoop]: Abstraction has has 1046 places, 1078 transitions, 2166 flow [2023-11-23 22:41:16,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:16,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:16,235 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:16,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:41:16,235 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-23 22:41:16,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:16,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1750689404, now seen corresponding path program 1 times [2023-11-23 22:41:16,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:16,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477929746] [2023-11-23 22:41:16,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:16,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:16,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:16,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:16,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477929746] [2023-11-23 22:41:16,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477929746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:16,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:16,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:16,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032683568] [2023-11-23 22:41:16,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:16,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:16,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:16,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:16,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:16,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1095 out of 1133 [2023-11-23 22:41:16,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1046 places, 1078 transitions, 2166 flow. Second operand has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:16,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:16,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1095 of 1133 [2023-11-23 22:41:16,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:17,980 INFO L124 PetriNetUnfolderBase]: 168/3877 cut-off events. [2023-11-23 22:41:17,980 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-23 22:41:18,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3931 conditions, 3877 events. 168/3877 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 26525 event pairs, 10 based on Foata normal form. 0/3080 useless extension candidates. Maximal degree in co-relation 3858. Up to 35 conditions per place. [2023-11-23 22:41:18,218 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 14 selfloop transitions, 2 changer transitions 0/1077 dead transitions. [2023-11-23 22:41:18,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1047 places, 1077 transitions, 2196 flow [2023-11-23 22:41:18,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:18,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:18,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3302 transitions. [2023-11-23 22:41:18,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9714621947631656 [2023-11-23 22:41:18,228 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3302 transitions. [2023-11-23 22:41:18,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3302 transitions. [2023-11-23 22:41:18,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:18,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3302 transitions. [2023-11-23 22:41:18,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.6666666666667) internal successors, (3302), 3 states have internal predecessors, (3302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:18,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:18,252 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:18,252 INFO L175 Difference]: Start difference. First operand has 1046 places, 1078 transitions, 2166 flow. Second operand 3 states and 3302 transitions. [2023-11-23 22:41:18,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1047 places, 1077 transitions, 2196 flow [2023-11-23 22:41:18,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1045 places, 1077 transitions, 2192 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:18,276 INFO L231 Difference]: Finished difference. Result has 1045 places, 1077 transitions, 2164 flow [2023-11-23 22:41:18,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2160, PETRI_DIFFERENCE_MINUEND_PLACES=1043, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1077, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1075, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2164, PETRI_PLACES=1045, PETRI_TRANSITIONS=1077} [2023-11-23 22:41:18,279 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -12 predicate places. [2023-11-23 22:41:18,279 INFO L495 AbstractCegarLoop]: Abstraction has has 1045 places, 1077 transitions, 2164 flow [2023-11-23 22:41:18,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:18,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:18,281 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:18,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:41:18,282 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-23 22:41:18,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:18,282 INFO L85 PathProgramCache]: Analyzing trace with hash 759818156, now seen corresponding path program 1 times [2023-11-23 22:41:18,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:18,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580390687] [2023-11-23 22:41:18,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:18,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:18,346 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 22:41:18,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:18,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580390687] [2023-11-23 22:41:18,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580390687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:18,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:18,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:18,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470574164] [2023-11-23 22:41:18,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:18,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:18,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:18,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:18,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:18,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1088 out of 1133 [2023-11-23 22:41:18,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1045 places, 1077 transitions, 2164 flow. Second operand has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:18,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:18,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1088 of 1133 [2023-11-23 22:41:18,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:22,387 INFO L124 PetriNetUnfolderBase]: 350/7796 cut-off events. [2023-11-23 22:41:22,387 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-23 22:41:22,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7899 conditions, 7796 events. 350/7796 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 69443 event pairs, 24 based on Foata normal form. 0/6158 useless extension candidates. Maximal degree in co-relation 7818. Up to 70 conditions per place. [2023-11-23 22:41:22,894 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 21 selfloop transitions, 2 changer transitions 0/1076 dead transitions. [2023-11-23 22:41:22,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1046 places, 1076 transitions, 2208 flow [2023-11-23 22:41:22,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:22,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:22,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3288 transitions. [2023-11-23 22:41:22,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9673433362753752 [2023-11-23 22:41:22,906 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3288 transitions. [2023-11-23 22:41:22,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3288 transitions. [2023-11-23 22:41:22,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:22,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3288 transitions. [2023-11-23 22:41:22,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:22,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:22,933 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:22,934 INFO L175 Difference]: Start difference. First operand has 1045 places, 1077 transitions, 2164 flow. Second operand 3 states and 3288 transitions. [2023-11-23 22:41:22,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1046 places, 1076 transitions, 2208 flow [2023-11-23 22:41:22,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1044 places, 1076 transitions, 2204 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:22,963 INFO L231 Difference]: Finished difference. Result has 1044 places, 1076 transitions, 2162 flow [2023-11-23 22:41:22,965 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2158, PETRI_DIFFERENCE_MINUEND_PLACES=1042, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1076, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1074, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2162, PETRI_PLACES=1044, PETRI_TRANSITIONS=1076} [2023-11-23 22:41:22,966 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -13 predicate places. [2023-11-23 22:41:22,966 INFO L495 AbstractCegarLoop]: Abstraction has has 1044 places, 1076 transitions, 2162 flow [2023-11-23 22:41:22,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:22,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:22,968 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:22,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 22:41:22,969 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-23 22:41:22,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:22,969 INFO L85 PathProgramCache]: Analyzing trace with hash 775442071, now seen corresponding path program 1 times [2023-11-23 22:41:22,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:22,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784406771] [2023-11-23 22:41:22,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:22,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:23,023 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 22:41:23,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:23,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784406771] [2023-11-23 22:41:23,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784406771] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:23,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:23,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:23,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63687578] [2023-11-23 22:41:23,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:23,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:23,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:23,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:23,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:23,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1091 out of 1133 [2023-11-23 22:41:23,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1044 places, 1076 transitions, 2162 flow. Second operand has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:23,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:23,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1091 of 1133 [2023-11-23 22:41:23,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:25,265 INFO L124 PetriNetUnfolderBase]: 150/3411 cut-off events. [2023-11-23 22:41:25,265 INFO L125 PetriNetUnfolderBase]: For 11/35 co-relation queries the response was YES. [2023-11-23 22:41:25,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3479 conditions, 3411 events. 150/3411 cut-off events. For 11/35 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 22878 event pairs, 16 based on Foata normal form. 0/2721 useless extension candidates. Maximal degree in co-relation 3390. Up to 51 conditions per place. [2023-11-23 22:41:25,529 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 18 selfloop transitions, 2 changer transitions 0/1075 dead transitions. [2023-11-23 22:41:25,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1045 places, 1075 transitions, 2200 flow [2023-11-23 22:41:25,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:25,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:25,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3294 transitions. [2023-11-23 22:41:25,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9691085613415711 [2023-11-23 22:41:25,540 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3294 transitions. [2023-11-23 22:41:25,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3294 transitions. [2023-11-23 22:41:25,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:25,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3294 transitions. [2023-11-23 22:41:25,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1098.0) internal successors, (3294), 3 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:25,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:25,566 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:25,566 INFO L175 Difference]: Start difference. First operand has 1044 places, 1076 transitions, 2162 flow. Second operand 3 states and 3294 transitions. [2023-11-23 22:41:25,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1045 places, 1075 transitions, 2200 flow [2023-11-23 22:41:25,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1043 places, 1075 transitions, 2196 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:25,596 INFO L231 Difference]: Finished difference. Result has 1043 places, 1075 transitions, 2160 flow [2023-11-23 22:41:25,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2156, PETRI_DIFFERENCE_MINUEND_PLACES=1041, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1075, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1073, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2160, PETRI_PLACES=1043, PETRI_TRANSITIONS=1075} [2023-11-23 22:41:25,599 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -14 predicate places. [2023-11-23 22:41:25,600 INFO L495 AbstractCegarLoop]: Abstraction has has 1043 places, 1075 transitions, 2160 flow [2023-11-23 22:41:25,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:25,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:25,602 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:25,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 22:41:25,602 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-23 22:41:25,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:25,603 INFO L85 PathProgramCache]: Analyzing trace with hash 188796491, now seen corresponding path program 1 times [2023-11-23 22:41:25,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:25,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088168799] [2023-11-23 22:41:25,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:25,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:25,695 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 22:41:25,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:25,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088168799] [2023-11-23 22:41:25,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088168799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:25,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:25,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:25,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118203531] [2023-11-23 22:41:25,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:25,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:25,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:25,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:25,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:25,734 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1094 out of 1133 [2023-11-23 22:41:25,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1043 places, 1075 transitions, 2160 flow. Second operand has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:25,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:25,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1094 of 1133 [2023-11-23 22:41:25,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:26,680 INFO L124 PetriNetUnfolderBase]: 74/1622 cut-off events. [2023-11-23 22:41:26,680 INFO L125 PetriNetUnfolderBase]: For 9/15 co-relation queries the response was YES. [2023-11-23 22:41:26,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1677 conditions, 1622 events. 74/1622 cut-off events. For 9/15 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 7892 event pairs, 12 based on Foata normal form. 0/1307 useless extension candidates. Maximal degree in co-relation 1580. Up to 40 conditions per place. [2023-11-23 22:41:26,766 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 15 selfloop transitions, 2 changer transitions 0/1074 dead transitions. [2023-11-23 22:41:26,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1044 places, 1074 transitions, 2192 flow [2023-11-23 22:41:26,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:26,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:26,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3300 transitions. [2023-11-23 22:41:26,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.970873786407767 [2023-11-23 22:41:26,776 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3300 transitions. [2023-11-23 22:41:26,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3300 transitions. [2023-11-23 22:41:26,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:26,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3300 transitions. [2023-11-23 22:41:26,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.0) internal successors, (3300), 3 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:26,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:26,799 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:26,799 INFO L175 Difference]: Start difference. First operand has 1043 places, 1075 transitions, 2160 flow. Second operand 3 states and 3300 transitions. [2023-11-23 22:41:26,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1044 places, 1074 transitions, 2192 flow [2023-11-23 22:41:26,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1042 places, 1074 transitions, 2188 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:26,828 INFO L231 Difference]: Finished difference. Result has 1042 places, 1074 transitions, 2158 flow [2023-11-23 22:41:26,830 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2154, PETRI_DIFFERENCE_MINUEND_PLACES=1040, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1074, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1072, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2158, PETRI_PLACES=1042, PETRI_TRANSITIONS=1074} [2023-11-23 22:41:26,831 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -15 predicate places. [2023-11-23 22:41:26,831 INFO L495 AbstractCegarLoop]: Abstraction has has 1042 places, 1074 transitions, 2158 flow [2023-11-23 22:41:26,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:26,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:26,833 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:26,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 22:41:26,834 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-23 22:41:26,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:26,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1586934559, now seen corresponding path program 1 times [2023-11-23 22:41:26,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:26,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817002893] [2023-11-23 22:41:26,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:26,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:26,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:26,884 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 22:41:26,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:26,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817002893] [2023-11-23 22:41:26,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817002893] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:26,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:26,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:26,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947064790] [2023-11-23 22:41:26,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:26,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:26,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:26,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:26,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:26,923 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1095 out of 1133 [2023-11-23 22:41:26,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1042 places, 1074 transitions, 2158 flow. Second operand has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:26,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:26,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1095 of 1133 [2023-11-23 22:41:26,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:28,203 INFO L124 PetriNetUnfolderBase]: 108/2533 cut-off events. [2023-11-23 22:41:28,203 INFO L125 PetriNetUnfolderBase]: For 8/10 co-relation queries the response was YES. [2023-11-23 22:41:28,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2582 conditions, 2533 events. 108/2533 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 14495 event pairs, 10 based on Foata normal form. 0/2033 useless extension candidates. Maximal degree in co-relation 2477. Up to 35 conditions per place. [2023-11-23 22:41:28,361 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 14 selfloop transitions, 2 changer transitions 0/1073 dead transitions. [2023-11-23 22:41:28,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1043 places, 1073 transitions, 2188 flow [2023-11-23 22:41:28,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:28,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:28,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3302 transitions. [2023-11-23 22:41:28,370 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9714621947631656 [2023-11-23 22:41:28,370 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3302 transitions. [2023-11-23 22:41:28,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3302 transitions. [2023-11-23 22:41:28,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:28,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3302 transitions. [2023-11-23 22:41:28,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.6666666666667) internal successors, (3302), 3 states have internal predecessors, (3302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:28,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:28,394 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:28,394 INFO L175 Difference]: Start difference. First operand has 1042 places, 1074 transitions, 2158 flow. Second operand 3 states and 3302 transitions. [2023-11-23 22:41:28,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1043 places, 1073 transitions, 2188 flow [2023-11-23 22:41:28,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1041 places, 1073 transitions, 2184 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:28,423 INFO L231 Difference]: Finished difference. Result has 1041 places, 1073 transitions, 2156 flow [2023-11-23 22:41:28,426 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2152, PETRI_DIFFERENCE_MINUEND_PLACES=1039, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1073, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1071, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2156, PETRI_PLACES=1041, PETRI_TRANSITIONS=1073} [2023-11-23 22:41:28,429 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -16 predicate places. [2023-11-23 22:41:28,429 INFO L495 AbstractCegarLoop]: Abstraction has has 1041 places, 1073 transitions, 2156 flow [2023-11-23 22:41:28,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:28,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:28,431 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:28,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 22:41:28,431 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-23 22:41:28,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:28,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1548338626, now seen corresponding path program 1 times [2023-11-23 22:41:28,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:28,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696831373] [2023-11-23 22:41:28,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:28,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:28,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:28,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:28,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696831373] [2023-11-23 22:41:28,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696831373] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:28,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:28,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:28,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193268706] [2023-11-23 22:41:28,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:28,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:28,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:28,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:28,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:28,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1088 out of 1133 [2023-11-23 22:41:28,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1041 places, 1073 transitions, 2156 flow. Second operand has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:28,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:28,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1088 of 1133 [2023-11-23 22:41:28,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:30,844 INFO L124 PetriNetUnfolderBase]: 206/4576 cut-off events. [2023-11-23 22:41:30,844 INFO L125 PetriNetUnfolderBase]: For 15/99 co-relation queries the response was YES. [2023-11-23 22:41:31,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4667 conditions, 4576 events. 206/4576 cut-off events. For 15/99 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 34687 event pairs, 24 based on Foata normal form. 0/3639 useless extension candidates. Maximal degree in co-relation 4554. Up to 70 conditions per place. [2023-11-23 22:41:31,191 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 21 selfloop transitions, 2 changer transitions 0/1072 dead transitions. [2023-11-23 22:41:31,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1042 places, 1072 transitions, 2200 flow [2023-11-23 22:41:31,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:31,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:31,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3288 transitions. [2023-11-23 22:41:31,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9673433362753752 [2023-11-23 22:41:31,198 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3288 transitions. [2023-11-23 22:41:31,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3288 transitions. [2023-11-23 22:41:31,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:31,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3288 transitions. [2023-11-23 22:41:31,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:31,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:31,207 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:31,207 INFO L175 Difference]: Start difference. First operand has 1041 places, 1073 transitions, 2156 flow. Second operand 3 states and 3288 transitions. [2023-11-23 22:41:31,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1042 places, 1072 transitions, 2200 flow [2023-11-23 22:41:31,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1040 places, 1072 transitions, 2196 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:31,230 INFO L231 Difference]: Finished difference. Result has 1040 places, 1072 transitions, 2154 flow [2023-11-23 22:41:31,232 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2150, PETRI_DIFFERENCE_MINUEND_PLACES=1038, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1072, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1070, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2154, PETRI_PLACES=1040, PETRI_TRANSITIONS=1072} [2023-11-23 22:41:31,233 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -17 predicate places. [2023-11-23 22:41:31,233 INFO L495 AbstractCegarLoop]: Abstraction has has 1040 places, 1072 transitions, 2154 flow [2023-11-23 22:41:31,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:31,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:31,234 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:31,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 22:41:31,235 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-23 22:41:31,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:31,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1161432532, now seen corresponding path program 1 times [2023-11-23 22:41:31,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:31,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579803934] [2023-11-23 22:41:31,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:31,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:31,288 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 22:41:31,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:31,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579803934] [2023-11-23 22:41:31,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579803934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:31,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:31,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:31,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739524543] [2023-11-23 22:41:31,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:31,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:31,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:31,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:31,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:31,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1091 out of 1133 [2023-11-23 22:41:31,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1040 places, 1072 transitions, 2154 flow. Second operand has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:31,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:31,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1091 of 1133 [2023-11-23 22:41:31,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:31,927 INFO L124 PetriNetUnfolderBase]: 78/1587 cut-off events. [2023-11-23 22:41:31,927 INFO L125 PetriNetUnfolderBase]: For 19/21 co-relation queries the response was YES. [2023-11-23 22:41:31,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1649 conditions, 1587 events. 78/1587 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 7490 event pairs, 16 based on Foata normal form. 0/1288 useless extension candidates. Maximal degree in co-relation 1528. Up to 53 conditions per place. [2023-11-23 22:41:31,986 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 18 selfloop transitions, 2 changer transitions 0/1071 dead transitions. [2023-11-23 22:41:31,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1041 places, 1071 transitions, 2192 flow [2023-11-23 22:41:31,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:31,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:31,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3294 transitions. [2023-11-23 22:41:31,993 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9691085613415711 [2023-11-23 22:41:31,993 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3294 transitions. [2023-11-23 22:41:31,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3294 transitions. [2023-11-23 22:41:31,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:31,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3294 transitions. [2023-11-23 22:41:31,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1098.0) internal successors, (3294), 3 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:32,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:32,002 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:32,002 INFO L175 Difference]: Start difference. First operand has 1040 places, 1072 transitions, 2154 flow. Second operand 3 states and 3294 transitions. [2023-11-23 22:41:32,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1041 places, 1071 transitions, 2192 flow [2023-11-23 22:41:32,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1039 places, 1071 transitions, 2188 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:32,027 INFO L231 Difference]: Finished difference. Result has 1039 places, 1071 transitions, 2152 flow [2023-11-23 22:41:32,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2148, PETRI_DIFFERENCE_MINUEND_PLACES=1037, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1071, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1069, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2152, PETRI_PLACES=1039, PETRI_TRANSITIONS=1071} [2023-11-23 22:41:32,030 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -18 predicate places. [2023-11-23 22:41:32,030 INFO L495 AbstractCegarLoop]: Abstraction has has 1039 places, 1071 transitions, 2152 flow [2023-11-23 22:41:32,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1092.3333333333333) internal successors, (3277), 3 states have internal predecessors, (3277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:32,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:32,032 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:32,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 22:41:32,032 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-23 22:41:32,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:32,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1123837388, now seen corresponding path program 1 times [2023-11-23 22:41:32,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:32,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841117544] [2023-11-23 22:41:32,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:32,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:32,085 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 22:41:32,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:32,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841117544] [2023-11-23 22:41:32,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841117544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:32,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:32,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:32,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340036335] [2023-11-23 22:41:32,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:32,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:32,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:32,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:32,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:32,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1094 out of 1133 [2023-11-23 22:41:32,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1039 places, 1071 transitions, 2152 flow. Second operand has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:32,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:32,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1094 of 1133 [2023-11-23 22:41:32,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:32,928 INFO L124 PetriNetUnfolderBase]: 74/1618 cut-off events. [2023-11-23 22:41:32,928 INFO L125 PetriNetUnfolderBase]: For 15/17 co-relation queries the response was YES. [2023-11-23 22:41:32,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1667 conditions, 1618 events. 74/1618 cut-off events. For 15/17 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 7394 event pairs, 12 based on Foata normal form. 0/1307 useless extension candidates. Maximal degree in co-relation 1538. Up to 40 conditions per place. [2023-11-23 22:41:33,020 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 15 selfloop transitions, 2 changer transitions 0/1070 dead transitions. [2023-11-23 22:41:33,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1040 places, 1070 transitions, 2184 flow [2023-11-23 22:41:33,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:33,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:33,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3300 transitions. [2023-11-23 22:41:33,030 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.970873786407767 [2023-11-23 22:41:33,030 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3300 transitions. [2023-11-23 22:41:33,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3300 transitions. [2023-11-23 22:41:33,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:33,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3300 transitions. [2023-11-23 22:41:33,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.0) internal successors, (3300), 3 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:33,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:33,041 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:33,041 INFO L175 Difference]: Start difference. First operand has 1039 places, 1071 transitions, 2152 flow. Second operand 3 states and 3300 transitions. [2023-11-23 22:41:33,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1040 places, 1070 transitions, 2184 flow [2023-11-23 22:41:33,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1038 places, 1070 transitions, 2180 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:33,063 INFO L231 Difference]: Finished difference. Result has 1038 places, 1070 transitions, 2150 flow [2023-11-23 22:41:33,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2146, PETRI_DIFFERENCE_MINUEND_PLACES=1036, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1070, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1068, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2150, PETRI_PLACES=1038, PETRI_TRANSITIONS=1070} [2023-11-23 22:41:33,066 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -19 predicate places. [2023-11-23 22:41:33,066 INFO L495 AbstractCegarLoop]: Abstraction has has 1038 places, 1070 transitions, 2150 flow [2023-11-23 22:41:33,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1095.3333333333333) internal successors, (3286), 3 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:33,068 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:33,068 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:33,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 22:41:33,068 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-23 22:41:33,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:33,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1225030870, now seen corresponding path program 1 times [2023-11-23 22:41:33,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:33,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309956226] [2023-11-23 22:41:33,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:33,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:33,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:41:33,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:33,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309956226] [2023-11-23 22:41:33,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309956226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:33,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:33,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:33,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444599329] [2023-11-23 22:41:33,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:33,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:33,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:33,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:33,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:33,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1095 out of 1133 [2023-11-23 22:41:33,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1038 places, 1070 transitions, 2150 flow. Second operand has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:33,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:33,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1095 of 1133 [2023-11-23 22:41:33,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:33,815 INFO L124 PetriNetUnfolderBase]: 48/1169 cut-off events. [2023-11-23 22:41:33,815 INFO L125 PetriNetUnfolderBase]: For 13/15 co-relation queries the response was YES. [2023-11-23 22:41:33,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1213 conditions, 1169 events. 48/1169 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4765 event pairs, 10 based on Foata normal form. 0/972 useless extension candidates. Maximal degree in co-relation 1076. Up to 35 conditions per place. [2023-11-23 22:41:33,896 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 14 selfloop transitions, 2 changer transitions 0/1069 dead transitions. [2023-11-23 22:41:33,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1039 places, 1069 transitions, 2180 flow [2023-11-23 22:41:33,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:33,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:33,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3302 transitions. [2023-11-23 22:41:33,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9714621947631656 [2023-11-23 22:41:33,906 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3302 transitions. [2023-11-23 22:41:33,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3302 transitions. [2023-11-23 22:41:33,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:33,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3302 transitions. [2023-11-23 22:41:33,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1100.6666666666667) internal successors, (3302), 3 states have internal predecessors, (3302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:33,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:33,924 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:33,925 INFO L175 Difference]: Start difference. First operand has 1038 places, 1070 transitions, 2150 flow. Second operand 3 states and 3302 transitions. [2023-11-23 22:41:33,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1039 places, 1069 transitions, 2180 flow [2023-11-23 22:41:33,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1037 places, 1069 transitions, 2176 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:33,951 INFO L231 Difference]: Finished difference. Result has 1037 places, 1069 transitions, 2148 flow [2023-11-23 22:41:33,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2144, PETRI_DIFFERENCE_MINUEND_PLACES=1035, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1069, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1067, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2148, PETRI_PLACES=1037, PETRI_TRANSITIONS=1069} [2023-11-23 22:41:33,954 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -20 predicate places. [2023-11-23 22:41:33,955 INFO L495 AbstractCegarLoop]: Abstraction has has 1037 places, 1069 transitions, 2148 flow [2023-11-23 22:41:33,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1096.3333333333333) internal successors, (3289), 3 states have internal predecessors, (3289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:33,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:33,956 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:33,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 22:41:33,956 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-23 22:41:33,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:33,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1294198166, now seen corresponding path program 1 times [2023-11-23 22:41:33,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:33,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251055950] [2023-11-23 22:41:33,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:33,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:34,014 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 22:41:34,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:34,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251055950] [2023-11-23 22:41:34,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251055950] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:34,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:34,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:34,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791382623] [2023-11-23 22:41:34,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:34,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:34,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:34,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:34,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:34,095 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1088 out of 1133 [2023-11-23 22:41:34,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1037 places, 1069 transitions, 2148 flow. Second operand has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:34,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:34,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1088 of 1133 [2023-11-23 22:41:34,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:34,845 INFO L124 PetriNetUnfolderBase]: 86/1616 cut-off events. [2023-11-23 22:41:34,845 INFO L125 PetriNetUnfolderBase]: For 27/29 co-relation queries the response was YES. [2023-11-23 22:41:34,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1695 conditions, 1616 events. 86/1616 cut-off events. For 27/29 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 8518 event pairs, 24 based on Foata normal form. 0/1308 useless extension candidates. Maximal degree in co-relation 1550. Up to 70 conditions per place. [2023-11-23 22:41:34,908 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 21 selfloop transitions, 2 changer transitions 0/1068 dead transitions. [2023-11-23 22:41:34,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1038 places, 1068 transitions, 2192 flow [2023-11-23 22:41:34,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:34,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:34,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3288 transitions. [2023-11-23 22:41:34,917 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9673433362753752 [2023-11-23 22:41:34,917 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3288 transitions. [2023-11-23 22:41:34,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3288 transitions. [2023-11-23 22:41:34,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:34,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3288 transitions. [2023-11-23 22:41:34,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:34,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:34,930 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:34,930 INFO L175 Difference]: Start difference. First operand has 1037 places, 1069 transitions, 2148 flow. Second operand 3 states and 3288 transitions. [2023-11-23 22:41:34,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1038 places, 1068 transitions, 2192 flow [2023-11-23 22:41:34,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1036 places, 1068 transitions, 2188 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:34,958 INFO L231 Difference]: Finished difference. Result has 1036 places, 1068 transitions, 2146 flow [2023-11-23 22:41:34,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2142, PETRI_DIFFERENCE_MINUEND_PLACES=1034, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1068, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1066, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2146, PETRI_PLACES=1036, PETRI_TRANSITIONS=1068} [2023-11-23 22:41:34,962 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -21 predicate places. [2023-11-23 22:41:34,962 INFO L495 AbstractCegarLoop]: Abstraction has has 1036 places, 1068 transitions, 2146 flow [2023-11-23 22:41:34,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1089.3333333333333) internal successors, (3268), 3 states have internal predecessors, (3268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:34,963 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:34,964 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:34,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 22:41:34,964 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-23 22:41:34,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:34,965 INFO L85 PathProgramCache]: Analyzing trace with hash -2011635566, now seen corresponding path program 1 times [2023-11-23 22:41:34,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:34,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707148568] [2023-11-23 22:41:34,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:34,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:34,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:35,045 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 22:41:35,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:35,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707148568] [2023-11-23 22:41:35,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707148568] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:35,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:35,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:41:35,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057396219] [2023-11-23 22:41:35,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:35,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:41:35,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:35,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:41:35,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:41:35,077 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1097 out of 1133 [2023-11-23 22:41:35,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1036 places, 1068 transitions, 2146 flow. Second operand has 3 states, 3 states have (on average 1098.3333333333333) internal successors, (3295), 3 states have internal predecessors, (3295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:35,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:35,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1097 of 1133 [2023-11-23 22:41:35,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:41:36,165 INFO L124 PetriNetUnfolderBase]: 122/2659 cut-off events. [2023-11-23 22:41:36,166 INFO L125 PetriNetUnfolderBase]: For 8/12 co-relation queries the response was YES. [2023-11-23 22:41:36,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2715 conditions, 2659 events. 122/2659 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 14720 event pairs, 15 based on Foata normal form. 0/2134 useless extension candidates. Maximal degree in co-relation 2562. Up to 43 conditions per place. [2023-11-23 22:41:36,285 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 12 selfloop transitions, 2 changer transitions 0/1067 dead transitions. [2023-11-23 22:41:36,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1037 places, 1067 transitions, 2172 flow [2023-11-23 22:41:36,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:41:36,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:41:36,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3306 transitions. [2023-11-23 22:41:36,292 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9726390114739629 [2023-11-23 22:41:36,292 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3306 transitions. [2023-11-23 22:41:36,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3306 transitions. [2023-11-23 22:41:36,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:41:36,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3306 transitions. [2023-11-23 22:41:36,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1102.0) internal successors, (3306), 3 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:36,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:36,305 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:36,305 INFO L175 Difference]: Start difference. First operand has 1036 places, 1068 transitions, 2146 flow. Second operand 3 states and 3306 transitions. [2023-11-23 22:41:36,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1037 places, 1067 transitions, 2172 flow [2023-11-23 22:41:36,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1035 places, 1067 transitions, 2168 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:41:36,326 INFO L231 Difference]: Finished difference. Result has 1035 places, 1067 transitions, 2144 flow [2023-11-23 22:41:36,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=2140, PETRI_DIFFERENCE_MINUEND_PLACES=1033, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1067, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1065, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2144, PETRI_PLACES=1035, PETRI_TRANSITIONS=1067} [2023-11-23 22:41:36,329 INFO L281 CegarLoopForPetriNet]: 1057 programPoint places, -22 predicate places. [2023-11-23 22:41:36,329 INFO L495 AbstractCegarLoop]: Abstraction has has 1035 places, 1067 transitions, 2144 flow [2023-11-23 22:41:36,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1098.3333333333333) internal successors, (3295), 3 states have internal predecessors, (3295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:36,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:41:36,331 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:41:36,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-23 22:41:36,331 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-23 22:41:36,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:41:36,332 INFO L85 PathProgramCache]: Analyzing trace with hash 2145302927, now seen corresponding path program 1 times [2023-11-23 22:41:36,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:41:36,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920488168] [2023-11-23 22:41:36,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:41:36,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:41:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:41:37,306 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 22:41:37,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:41:37,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920488168] [2023-11-23 22:41:37,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920488168] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:41:37,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:41:37,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:41:37,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648370685] [2023-11-23 22:41:37,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:41:37,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:41:37,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:41:37,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:41:37,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:41:37,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1069 out of 1133 [2023-11-23 22:41:37,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1035 places, 1067 transitions, 2144 flow. Second operand has 6 states, 6 states have (on average 1070.5) internal successors, (6423), 6 states have internal predecessors, (6423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:41:37,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:41:37,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1069 of 1133 [2023-11-23 22:41:37,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand